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[PATCH v3 04/10] reftable: convert from `strbuf` to `reftable_buf`

From
Patrick Steinhardt <ps@pks.im>
Date
Oct 17, 2024, 04:53 UTC
Message-ID
<7c7ccc5d96681bc957671a26f4bc5100a95e20fc.1729140565.git.ps@pks.im>
In-Reply-To
<cover.1729140565.git.ps@pks.im>

Convert the reftable library to use the `reftable_buf` interface instead of the `strbuf` interface. This is mostly a mechanical change via sed(1) with some manual fixes where functions for `strbuf` and `reftable_buf` differ. The converted code does not yet handle allocation failures. This will be handled in subsequent commits.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
---
 reftable/basics.c                   |   2 +-
 reftable/basics.h                   |   7 +-
 reftable/block.c                    |  34 ++++----
 reftable/block.h                    |  14 ++--
 reftable/blocksource.c              |   6 +-
 reftable/blocksource.h              |   3 +-
 reftable/iter.c                     |   6 +-
 reftable/iter.h                     |   8 +-
 reftable/reader.c                   |  16 ++--
 reftable/record.c                   |  80 +++++++++----------
 reftable/record.h                   |  21 ++---
 reftable/stack.c                    | 120 ++++++++++++++--------------
 reftable/system.h                   |   1 -
 reftable/writer.c                   |  66 +++++++--------
 reftable/writer.h                   |   2 +-
 t/unit-tests/lib-reftable.c         |   4 +-
 t/unit-tests/lib-reftable.h         |   7 +-
 t/unit-tests/t-reftable-basics.c    |  16 ++--
 t/unit-tests/t-reftable-block.c     |  42 +++++-----
 t/unit-tests/t-reftable-merged.c    |  26 +++---
 t/unit-tests/t-reftable-reader.c    |   8 +-
 t/unit-tests/t-reftable-readwrite.c |  92 ++++++++++-----------
 t/unit-tests/t-reftable-record.c    |  74 ++++++++---------
 t/unit-tests/t-reftable-stack.c     |  90 ++++++++++-----------
 24 files changed, 374 insertions(+), 371 deletions(-)
diff --git a/reftable/basics.c b/reftable/basics.c
index 65ad761da0b..bc4fcc91446 100644
--- a/reftable/basics.c
+++ b/reftable/basics.c
@@ -260,7 +260,7 @@ int names_equal(const char **a, const char **b)
 	return a[i] == b[i];
 }
 
-int common_prefix_size(struct strbuf *a, struct strbuf *b)
+int common_prefix_size(struct reftable_buf *a, struct reftable_buf *b)
 {
 	int p = 0;
 	for (; p < a->len && p < b->len; p++) {
diff --git a/reftable/basics.h b/reftable/basics.h
index bd33c34deae..7aa46d7c30d 100644
--- a/reftable/basics.h
+++ b/reftable/basics.h
@@ -57,7 +57,9 @@ int reftable_buf_setlen(struct reftable_buf *buf, size_t len);
 int reftable_buf_cmp(const struct reftable_buf *a, const struct reftable_buf *b);
 
 /*
- * Add the given bytes to the buffer. Returns 0 on success,
+ * Append `len` bytes from `data` to the buffer. This function works with
+ * arbitrary byte sequences, including ones that contain embedded NUL
+ * characters. As such, we use `void *` as input type. Returns 0 on success,
  * REFTABLE_OUT_OF_MEMORY_ERROR on allocation failure.
  */
 int reftable_buf_add(struct reftable_buf *buf, const void *data, size_t len);
@@ -144,8 +146,7 @@ char *reftable_strdup(const char *str);
 #endif
 
 /* Find the longest shared prefix size of `a` and `b` */
-struct strbuf;
-int common_prefix_size(struct strbuf *a, struct strbuf *b);
+int common_prefix_size(struct reftable_buf *a, struct reftable_buf *b);
 
 int hash_size(uint32_t id);
 
diff --git a/reftable/block.c b/reftable/block.c
index cd4180eac7b..4f62b823db8 100644
--- a/reftable/block.c
+++ b/reftable/block.c
@@ -38,7 +38,7 @@ int footer_size(int version)
 }
 
 static int block_writer_register_restart(struct block_writer *w, int n,
-					 int is_restart, struct strbuf *key)
+					 int is_restart, struct reftable_buf *key)
 {
 	int rlen = w->restart_len;
 	if (rlen >= MAX_RESTARTS) {
@@ -59,8 +59,8 @@ static int block_writer_register_restart(struct block_writer *w, int n,
 
 	w->next += n;
 
-	strbuf_reset(&w->last_key);
-	strbuf_add(&w->last_key, key->buf, key->len);
+	reftable_buf_reset(&w->last_key);
+	reftable_buf_add(&w->last_key, key->buf, key->len);
 	w->entries++;
 	return 0;
 }
@@ -98,8 +98,8 @@ uint8_t block_writer_type(struct block_writer *bw)
    empty key. */
 int block_writer_add(struct block_writer *w, struct reftable_record *rec)
 {
-	struct strbuf empty = STRBUF_INIT;
-	struct strbuf last =
+	struct reftable_buf empty = REFTABLE_BUF_INIT;
+	struct reftable_buf last =
 		w->entries % w->restart_interval == 0 ? empty : w->last_key;
 	struct string_view out = {
 		.buf = w->buf + w->next,
@@ -109,7 +109,7 @@ int block_writer_add(struct block_writer *w, struct reftable_record *rec)
 	struct string_view start = out;
 
 	int is_restart = 0;
-	struct strbuf key = STRBUF_INIT;
+	struct reftable_buf key = REFTABLE_BUF_INIT;
 	int n = 0;
 	int err = -1;
 
@@ -133,7 +133,7 @@ int block_writer_add(struct block_writer *w, struct reftable_record *rec)
 	err = block_writer_register_restart(w, start.len - out.len, is_restart,
 					    &key);
 done:
-	strbuf_release(&key);
+	reftable_buf_release(&key);
 	return err;
 }
 
@@ -325,7 +325,7 @@ uint8_t block_reader_type(const struct block_reader *r)
 	return r->block.data[r->header_off];
 }
 
-int block_reader_first_key(const struct block_reader *br, struct strbuf *key)
+int block_reader_first_key(const struct block_reader *br, struct reftable_buf *key)
 {
 	int off = br->header_off + 4, n;
 	struct string_view in = {
@@ -334,7 +334,7 @@ int block_reader_first_key(const struct block_reader *br, struct strbuf *key)
 	};
 	uint8_t extra = 0;
 
-	strbuf_reset(key);
+	reftable_buf_reset(key);
 
 	n = reftable_decode_key(key, &extra, in);
 	if (n < 0)
@@ -355,13 +355,13 @@ void block_iter_seek_start(struct block_iter *it, const struct block_reader *br)
 	it->block = br->block.data;
 	it->block_len = br->block_len;
 	it->hash_size = br->hash_size;
-	strbuf_reset(&it->last_key);
+	reftable_buf_reset(&it->last_key);
 	it->next_off = br->header_off + 4;
 }
 
 struct restart_needle_less_args {
 	int error;
-	struct strbuf needle;
+	struct reftable_buf needle;
 	const struct block_reader *reader;
 };
 
@@ -433,7 +433,7 @@ int block_iter_next(struct block_iter *it, struct reftable_record *rec)
 
 void block_iter_reset(struct block_iter *it)
 {
-	strbuf_reset(&it->last_key);
+	reftable_buf_reset(&it->last_key);
 	it->next_off = 0;
 	it->block = NULL;
 	it->block_len = 0;
@@ -442,12 +442,12 @@ void block_iter_reset(struct block_iter *it)
 
 void block_iter_close(struct block_iter *it)
 {
-	strbuf_release(&it->last_key);
-	strbuf_release(&it->scratch);
+	reftable_buf_release(&it->last_key);
+	reftable_buf_release(&it->scratch);
 }
 
 int block_iter_seek_key(struct block_iter *it, const struct block_reader *br,
-			struct strbuf *want)
+			struct reftable_buf *want)
 {
 	struct restart_needle_less_args args = {
 		.needle = *want,
@@ -537,7 +537,7 @@ int block_iter_seek_key(struct block_iter *it, const struct block_reader *br,
 		 * with themselves.
 		 */
 		reftable_record_key(&rec, &it->last_key);
-		if (strbuf_cmp(&it->last_key, want) >= 0) {
+		if (reftable_buf_cmp(&it->last_key, want) >= 0) {
 			it->next_off = prev_off;
 			goto done;
 		}
@@ -554,7 +554,7 @@ void block_writer_release(struct block_writer *bw)
 	REFTABLE_FREE_AND_NULL(bw->zstream);
 	REFTABLE_FREE_AND_NULL(bw->restarts);
 	REFTABLE_FREE_AND_NULL(bw->compressed);
-	strbuf_release(&bw->last_key);
+	reftable_buf_release(&bw->last_key);
 	/* the block is not owned. */
 }
 
diff --git a/reftable/block.h b/reftable/block.h
index 18d7ea03373..9a3effa5134 100644
--- a/reftable/block.h
+++ b/reftable/block.h
@@ -38,7 +38,7 @@ struct block_writer {
 	uint32_t restart_len;
 	uint32_t restart_cap;
 
-	struct strbuf last_key;
+	struct reftable_buf last_key;
 	int entries;
 };
 
@@ -98,7 +98,7 @@ void block_reader_release(struct block_reader *br);
 uint8_t block_reader_type(const struct block_reader *r);
 
 /* Decodes the first key in the block */
-int block_reader_first_key(const struct block_reader *br, struct strbuf *key);
+int block_reader_first_key(const struct block_reader *br, struct reftable_buf *key);
 
 /* Iterate over entries in a block */
 struct block_iter {
@@ -109,13 +109,13 @@ struct block_iter {
 	int hash_size;
 
 	/* key for last entry we read. */
-	struct strbuf last_key;
-	struct strbuf scratch;
+	struct reftable_buf last_key;
+	struct reftable_buf scratch;
 };
 
 #define BLOCK_ITER_INIT { \
-	.last_key = STRBUF_INIT, \
-	.scratch = STRBUF_INIT, \
+	.last_key = REFTABLE_BUF_INIT, \
+	.scratch = REFTABLE_BUF_INIT, \
 }
 
 /* Position `it` at start of the block */
@@ -123,7 +123,7 @@ void block_iter_seek_start(struct block_iter *it, const struct block_reader *br)
 
 /* Position `it` to the `want` key in the block */
 int block_iter_seek_key(struct block_iter *it, const struct block_reader *br,
-			struct strbuf *want);
+			struct reftable_buf *want);
 
 /* return < 0 for error, 0 for OK, > 0 for EOF. */
 int block_iter_next(struct block_iter *it, struct reftable_record *rec);
diff --git a/reftable/blocksource.c b/reftable/blocksource.c
index a2a6a196d55..d6242d67900 100644
--- a/reftable/blocksource.c
+++ b/reftable/blocksource.c
@@ -27,7 +27,7 @@ static void strbuf_close(void *b UNUSED)
 static int strbuf_read_block(void *v, struct reftable_block *dest, uint64_t off,
 			     uint32_t size)
 {
-	struct strbuf *b = v;
+	struct reftable_buf *b = v;
 	assert(off + size <= b->len);
 	REFTABLE_CALLOC_ARRAY(dest->data, size);
 	if (!dest->data)
@@ -39,7 +39,7 @@ static int strbuf_read_block(void *v, struct reftable_block *dest, uint64_t off,
 
 static uint64_t strbuf_size(void *b)
 {
-	return ((struct strbuf *)b)->len;
+	return ((struct reftable_buf *)b)->len;
 }
 
 static struct reftable_block_source_vtable strbuf_vtable = {
@@ -50,7 +50,7 @@ static struct reftable_block_source_vtable strbuf_vtable = {
 };
 
 void block_source_from_strbuf(struct reftable_block_source *bs,
-			      struct strbuf *buf)
+			      struct reftable_buf *buf)
 {
 	assert(!bs->ops);
 	bs->ops = &strbuf_vtable;
diff --git a/reftable/blocksource.h b/reftable/blocksource.h
index 659a27b4063..ee3647c6531 100644
--- a/reftable/blocksource.h
+++ b/reftable/blocksource.h
@@ -12,9 +12,10 @@ license that can be found in the LICENSE file or at
 #include "system.h"
 
 struct reftable_block_source;
+struct reftable_buf;
 
 /* Create an in-memory block source for reading reftables */
 void block_source_from_strbuf(struct reftable_block_source *bs,
-			      struct strbuf *buf);
+			      struct reftable_buf *buf);
 
 #endif
diff --git a/reftable/iter.c b/reftable/iter.c
index d926db653b1..6c193fd31a9 100644
--- a/reftable/iter.c
+++ b/reftable/iter.c
@@ -55,7 +55,7 @@ void iterator_set_empty(struct reftable_iterator *it)
 static void filtering_ref_iterator_close(void *iter_arg)
 {
 	struct filtering_ref_iterator *fri = iter_arg;
-	strbuf_release(&fri->oid);
+	reftable_buf_release(&fri->oid);
 	reftable_iterator_destroy(&fri->it);
 }
 
@@ -115,7 +115,7 @@ static void indexed_table_ref_iter_close(void *p)
 	block_iter_close(&it->cur);
 	reftable_block_done(&it->block_reader.block);
 	reftable_free(it->offsets);
-	strbuf_release(&it->oid);
+	reftable_buf_release(&it->oid);
 }
 
 static int indexed_table_ref_iter_next_block(struct indexed_table_ref_iter *it)
@@ -197,7 +197,7 @@ int indexed_table_ref_iter_new(struct indexed_table_ref_iter **dest,
 
 	*itr = empty;
 	itr->r = r;
-	strbuf_add(&itr->oid, oid, oid_len);
+	reftable_buf_add(&itr->oid, oid, oid_len);
 
 	itr->offsets = offsets;
 	itr->offset_len = offset_len;
diff --git a/reftable/iter.h b/reftable/iter.h
index b3225bc7add..40f98893b85 100644
--- a/reftable/iter.h
+++ b/reftable/iter.h
@@ -44,12 +44,12 @@ void iterator_set_empty(struct reftable_iterator *it);
 
 /* iterator that produces only ref records that point to `oid` */
 struct filtering_ref_iterator {
-	struct strbuf oid;
+	struct reftable_buf oid;
 	struct reftable_iterator it;
 };
 #define FILTERING_REF_ITERATOR_INIT \
 	{                           \
-		.oid = STRBUF_INIT  \
+		.oid = REFTABLE_BUF_INIT  \
 	}
 
 void iterator_from_filtering_ref_iterator(struct reftable_iterator *,
@@ -60,7 +60,7 @@ void iterator_from_filtering_ref_iterator(struct reftable_iterator *,
  */
 struct indexed_table_ref_iter {
 	struct reftable_reader *r;
-	struct strbuf oid;
+	struct reftable_buf oid;
 
 	/* mutable */
 	uint64_t *offsets;
@@ -75,7 +75,7 @@ struct indexed_table_ref_iter {
 
 #define INDEXED_TABLE_REF_ITER_INIT { \
 	.cur = BLOCK_ITER_INIT, \
-	.oid = STRBUF_INIT, \
+	.oid = REFTABLE_BUF_INIT, \
 }
 
 void iterator_from_indexed_table_ref_iter(struct reftable_iterator *it,
diff --git a/reftable/reader.c b/reftable/reader.c
index 8d372539220..388f8bf6d7b 100644
--- a/reftable/reader.c
+++ b/reftable/reader.c
@@ -350,8 +350,8 @@ static int table_iter_seek_start(struct table_iter *ti, uint8_t typ, int index)
 static int table_iter_seek_linear(struct table_iter *ti,
 				  struct reftable_record *want)
 {
-	struct strbuf want_key = STRBUF_INIT;
-	struct strbuf got_key = STRBUF_INIT;
+	struct reftable_buf want_key = REFTABLE_BUF_INIT;
+	struct reftable_buf got_key = REFTABLE_BUF_INIT;
 	struct reftable_record rec;
 	int err;
 
@@ -401,7 +401,7 @@ static int table_iter_seek_linear(struct table_iter *ti,
 		if (err < 0)
 			goto done;
 
-		if (strbuf_cmp(&got_key, &want_key) > 0) {
+		if (reftable_buf_cmp(&got_key, &want_key) > 0) {
 			table_iter_block_done(&next);
 			break;
 		}
@@ -422,8 +422,8 @@ static int table_iter_seek_linear(struct table_iter *ti,
 
 done:
 	reftable_record_release(&rec);
-	strbuf_release(&want_key);
-	strbuf_release(&got_key);
+	reftable_buf_release(&want_key);
+	reftable_buf_release(&got_key);
 	return err;
 }
 
@@ -431,11 +431,11 @@ static int table_iter_seek_indexed(struct table_iter *ti,
 				   struct reftable_record *rec)
 {
 	struct reftable_record want_index = {
-		.type = BLOCK_TYPE_INDEX, .u.idx = { .last_key = STRBUF_INIT }
+		.type = BLOCK_TYPE_INDEX, .u.idx = { .last_key = REFTABLE_BUF_INIT }
 	};
 	struct reftable_record index_result = {
 		.type = BLOCK_TYPE_INDEX,
-		.u.idx = { .last_key = STRBUF_INIT },
+		.u.idx = { .last_key = REFTABLE_BUF_INIT },
 	};
 	int err;
 
@@ -765,7 +765,7 @@ static int reftable_reader_refs_for_unindexed(struct reftable_reader *r,
 	}
 	*filter = empty;
 
-	strbuf_add(&filter->oid, oid, oid_len);
+	reftable_buf_add(&filter->oid, oid, oid_len);
 	iterator_from_table_iter(&filter->it, ti);
 
 	iterator_from_filtering_ref_iterator(it, filter);
diff --git a/reftable/record.c b/reftable/record.c
index 87157f2c386..0182c973437 100644
--- a/reftable/record.c
+++ b/reftable/record.c
@@ -98,7 +98,7 @@ const unsigned char *reftable_ref_record_val2(const struct reftable_ref_record *
 	}
 }
 
-static int decode_string(struct strbuf *dest, struct string_view in)
+static int decode_string(struct reftable_buf *dest, struct string_view in)
 {
 	int start_len = in.len;
 	uint64_t tsize = 0;
@@ -109,8 +109,8 @@ static int decode_string(struct strbuf *dest, struct string_view in)
 	if (in.len < tsize)
 		return -1;
 
-	strbuf_reset(dest);
-	strbuf_add(dest, in.buf, tsize);
+	reftable_buf_reset(dest);
+	reftable_buf_add(dest, in.buf, tsize);
 	string_view_consume(&in, tsize);
 
 	return start_len - in.len;
@@ -133,7 +133,7 @@ static int encode_string(const char *str, struct string_view s)
 }
 
 int reftable_encode_key(int *restart, struct string_view dest,
-			struct strbuf prev_key, struct strbuf key,
+			struct reftable_buf prev_key, struct reftable_buf key,
 			uint8_t extra)
 {
 	struct string_view start = dest;
@@ -183,7 +183,7 @@ int reftable_decode_keylen(struct string_view in,
 	return start_len - in.len;
 }
 
-int reftable_decode_key(struct strbuf *last_key, uint8_t *extra,
+int reftable_decode_key(struct reftable_buf *last_key, uint8_t *extra,
 			struct string_view in)
 {
 	int start_len = in.len;
@@ -200,19 +200,19 @@ int reftable_decode_key(struct strbuf *last_key, uint8_t *extra,
 	    prefix_len > last_key->len)
 		return -1;
 
-	strbuf_setlen(last_key, prefix_len);
-	strbuf_add(last_key, in.buf, suffix_len);
+	reftable_buf_setlen(last_key, prefix_len);
+	reftable_buf_add(last_key, in.buf, suffix_len);
 	string_view_consume(&in, suffix_len);
 
 	return start_len - in.len;
 }
 
-static void reftable_ref_record_key(const void *r, struct strbuf *dest)
+static void reftable_ref_record_key(const void *r, struct reftable_buf *dest)
 {
 	const struct reftable_ref_record *rec =
 		(const struct reftable_ref_record *)r;
-	strbuf_reset(dest);
-	strbuf_addstr(dest, rec->refname);
+	reftable_buf_reset(dest);
+	reftable_buf_addstr(dest, rec->refname);
 }
 
 static int reftable_ref_record_copy_from(void *rec, const void *src_rec,
@@ -350,9 +350,9 @@ static int reftable_ref_record_encode(const void *rec, struct string_view s,
 	return start.len - s.len;
 }
 
-static int reftable_ref_record_decode(void *rec, struct strbuf key,
+static int reftable_ref_record_decode(void *rec, struct reftable_buf key,
 				      uint8_t val_type, struct string_view in,
-				      int hash_size, struct strbuf *scratch)
+				      int hash_size, struct reftable_buf *scratch)
 {
 	struct reftable_ref_record *r = rec;
 	struct string_view start = in;
@@ -415,7 +415,7 @@ static int reftable_ref_record_decode(void *rec, struct strbuf key,
 			goto done;
 		}
 		string_view_consume(&in, n);
-		r->value.symref = strbuf_detach(scratch, NULL);
+		r->value.symref = reftable_buf_detach(scratch);
 	} break;
 
 	case REFTABLE_REF_DELETION:
@@ -465,12 +465,12 @@ static struct reftable_record_vtable reftable_ref_record_vtable = {
 	.cmp = &reftable_ref_record_cmp_void,
 };
 
-static void reftable_obj_record_key(const void *r, struct strbuf *dest)
+static void reftable_obj_record_key(const void *r, struct reftable_buf *dest)
 {
 	const struct reftable_obj_record *rec =
 		(const struct reftable_obj_record *)r;
-	strbuf_reset(dest);
-	strbuf_add(dest, rec->hash_prefix, rec->hash_prefix_len);
+	reftable_buf_reset(dest);
+	reftable_buf_add(dest, rec->hash_prefix, rec->hash_prefix_len);
 }
 
 static void reftable_obj_record_release(void *rec)
@@ -547,10 +547,10 @@ static int reftable_obj_record_encode(const void *rec, struct string_view s,
 	return start.len - s.len;
 }
 
-static int reftable_obj_record_decode(void *rec, struct strbuf key,
+static int reftable_obj_record_decode(void *rec, struct reftable_buf key,
 				      uint8_t val_type, struct string_view in,
 				      int hash_size UNUSED,
-				      struct strbuf *scratch UNUSED)
+				      struct reftable_buf *scratch UNUSED)
 {
 	struct string_view start = in;
 	struct reftable_obj_record *r = rec;
@@ -664,19 +664,19 @@ static struct reftable_record_vtable reftable_obj_record_vtable = {
 	.cmp = &reftable_obj_record_cmp_void,
 };
 
-static void reftable_log_record_key(const void *r, struct strbuf *dest)
+static void reftable_log_record_key(const void *r, struct reftable_buf *dest)
 {
 	const struct reftable_log_record *rec =
 		(const struct reftable_log_record *)r;
 	int len = strlen(rec->refname);
 	uint8_t i64[8];
 	uint64_t ts = 0;
-	strbuf_reset(dest);
-	strbuf_add(dest, (uint8_t *)rec->refname, len + 1);
+	reftable_buf_reset(dest);
+	reftable_buf_add(dest, (uint8_t *)rec->refname, len + 1);
 
 	ts = (~ts) - rec->update_index;
 	put_be64(&i64[0], ts);
-	strbuf_add(dest, i64, sizeof(i64));
+	reftable_buf_add(dest, i64, sizeof(i64));
 }
 
 static int reftable_log_record_copy_from(void *rec, const void *src_rec,
@@ -807,9 +807,9 @@ static int reftable_log_record_encode(const void *rec, struct string_view s,
 	return start.len - s.len;
 }
 
-static int reftable_log_record_decode(void *rec, struct strbuf key,
+static int reftable_log_record_decode(void *rec, struct reftable_buf key,
 				      uint8_t val_type, struct string_view in,
-				      int hash_size, struct strbuf *scratch)
+				      int hash_size, struct reftable_buf *scratch)
 {
 	struct string_view start = in;
 	struct reftable_log_record *r = rec;
@@ -1027,11 +1027,11 @@ static struct reftable_record_vtable reftable_log_record_vtable = {
 	.cmp = &reftable_log_record_cmp_void,
 };
 
-static void reftable_index_record_key(const void *r, struct strbuf *dest)
+static void reftable_index_record_key(const void *r, struct reftable_buf *dest)
 {
 	const struct reftable_index_record *rec = r;
-	strbuf_reset(dest);
-	strbuf_add(dest, rec->last_key.buf, rec->last_key.len);
+	reftable_buf_reset(dest);
+	reftable_buf_add(dest, rec->last_key.buf, rec->last_key.len);
 }
 
 static int reftable_index_record_copy_from(void *rec, const void *src_rec,
@@ -1040,8 +1040,8 @@ static int reftable_index_record_copy_from(void *rec, const void *src_rec,
 	struct reftable_index_record *dst = rec;
 	const struct reftable_index_record *src = src_rec;
 
-	strbuf_reset(&dst->last_key);
-	strbuf_add(&dst->last_key, src->last_key.buf, src->last_key.len);
+	reftable_buf_reset(&dst->last_key);
+	reftable_buf_add(&dst->last_key, src->last_key.buf, src->last_key.len);
 	dst->offset = src->offset;
 
 	return 0;
@@ -1050,7 +1050,7 @@ static int reftable_index_record_copy_from(void *rec, const void *src_rec,
 static void reftable_index_record_release(void *rec)
 {
 	struct reftable_index_record *idx = rec;
-	strbuf_release(&idx->last_key);
+	reftable_buf_release(&idx->last_key);
 }
 
 static uint8_t reftable_index_record_val_type(const void *rec UNUSED)
@@ -1074,18 +1074,18 @@ static int reftable_index_record_encode(const void *rec, struct string_view out,
 	return start.len - out.len;
 }
 
-static int reftable_index_record_decode(void *rec, struct strbuf key,
+static int reftable_index_record_decode(void *rec, struct reftable_buf key,
 					uint8_t val_type UNUSED,
 					struct string_view in,
 					int hash_size UNUSED,
-					struct strbuf *scratch UNUSED)
+					struct reftable_buf *scratch UNUSED)
 {
 	struct string_view start = in;
 	struct reftable_index_record *r = rec;
 	int n = 0;
 
-	strbuf_reset(&r->last_key);
-	strbuf_add(&r->last_key, key.buf, key.len);
+	reftable_buf_reset(&r->last_key);
+	reftable_buf_add(&r->last_key, key.buf, key.len);
 
 	n = get_var_int(&r->offset, &in);
 	if (n < 0)
@@ -1101,14 +1101,14 @@ static int reftable_index_record_equal(const void *a, const void *b,
 	struct reftable_index_record *ia = (struct reftable_index_record *) a;
 	struct reftable_index_record *ib = (struct reftable_index_record *) b;
 
-	return ia->offset == ib->offset && !strbuf_cmp(&ia->last_key, &ib->last_key);
+	return ia->offset == ib->offset && !reftable_buf_cmp(&ia->last_key, &ib->last_key);
 }
 
 static int reftable_index_record_cmp(const void *_a, const void *_b)
 {
 	const struct reftable_index_record *a = _a;
 	const struct reftable_index_record *b = _b;
-	return strbuf_cmp(&a->last_key, &b->last_key);
+	return reftable_buf_cmp(&a->last_key, &b->last_key);
 }
 
 static struct reftable_record_vtable reftable_index_record_vtable = {
@@ -1124,7 +1124,7 @@ static struct reftable_record_vtable reftable_index_record_vtable = {
 	.cmp = &reftable_index_record_cmp,
 };
 
-void reftable_record_key(struct reftable_record *rec, struct strbuf *dest)
+void reftable_record_key(struct reftable_record *rec, struct reftable_buf *dest)
 {
 	reftable_record_vtable(rec)->key(reftable_record_data(rec), dest);
 }
@@ -1151,9 +1151,9 @@ uint8_t reftable_record_val_type(struct reftable_record *rec)
 	return reftable_record_vtable(rec)->val_type(reftable_record_data(rec));
 }
 
-int reftable_record_decode(struct reftable_record *rec, struct strbuf key,
+int reftable_record_decode(struct reftable_record *rec, struct reftable_buf key,
 			   uint8_t extra, struct string_view src, int hash_size,
-			   struct strbuf *scratch)
+			   struct reftable_buf *scratch)
 {
 	return reftable_record_vtable(rec)->decode(reftable_record_data(rec),
 						   key, extra, src, hash_size,
@@ -1294,7 +1294,7 @@ void reftable_record_init(struct reftable_record *rec, uint8_t typ)
 	case BLOCK_TYPE_OBJ:
 		return;
 	case BLOCK_TYPE_INDEX:
-		strbuf_init(&rec->u.idx.last_key, 0);
+		reftable_buf_init(&rec->u.idx.last_key);
 		return;
 	default:
 		BUG("unhandled record type");
diff --git a/reftable/record.h b/reftable/record.h
index 0f53ba54434..271da3bf360 100644
--- a/reftable/record.h
+++ b/reftable/record.h
@@ -9,6 +9,7 @@ license that can be found in the LICENSE file or at
 #ifndef RECORD_H
 #define RECORD_H
 
+#include "basics.h"
 #include "system.h"
 
 #include <stdint.h>
@@ -38,8 +39,8 @@ int put_var_int(struct string_view *dest, uint64_t val);
 
 /* Methods for records. */
 struct reftable_record_vtable {
-	/* encode the key of to a uint8_t strbuf. */
-	void (*key)(const void *rec, struct strbuf *dest);
+	/* encode the key of to a uint8_t reftable_buf. */
+	void (*key)(const void *rec, struct reftable_buf *dest);
 
 	/* The record type of ('r' for ref). */
 	uint8_t type;
@@ -54,9 +55,9 @@ struct reftable_record_vtable {
 	int (*encode)(const void *rec, struct string_view dest, int hash_size);
 
 	/* decode data from `src` into the record. */
-	int (*decode)(void *rec, struct strbuf key, uint8_t extra,
+	int (*decode)(void *rec, struct reftable_buf key, uint8_t extra,
 		      struct string_view src, int hash_size,
-		      struct strbuf *scratch);
+		      struct reftable_buf *scratch);
 
 	/* deallocate and null the record. */
 	void (*release)(void *rec);
@@ -83,7 +84,7 @@ int reftable_is_block_type(uint8_t typ);
 /* Encode `key` into `dest`. Sets `is_restart` to indicate a restart. Returns
  * number of bytes written. */
 int reftable_encode_key(int *is_restart, struct string_view dest,
-			struct strbuf prev_key, struct strbuf key,
+			struct reftable_buf prev_key, struct reftable_buf key,
 			uint8_t extra);
 
 /* Decode a record's key lengths. */
@@ -96,13 +97,13 @@ int reftable_decode_keylen(struct string_view in,
  * Decode into `last_key` and `extra` from `in`. `last_key` is expected to
  * contain the decoded key of the preceding record, if any.
  */
-int reftable_decode_key(struct strbuf *last_key, uint8_t *extra,
+int reftable_decode_key(struct reftable_buf *last_key, uint8_t *extra,
 			struct string_view in);
 
 /* reftable_index_record are used internally to speed up lookups. */
 struct reftable_index_record {
 	uint64_t offset; /* Offset of block */
-	struct strbuf last_key; /* Last key of the block. */
+	struct reftable_buf last_key; /* Last key of the block. */
 };
 
 /* reftable_obj_record stores an object ID => ref mapping. */
@@ -136,15 +137,15 @@ void reftable_record_init(struct reftable_record *rec, uint8_t typ);
 /* see struct record_vtable */
 int reftable_record_cmp(struct reftable_record *a, struct reftable_record *b);
 int reftable_record_equal(struct reftable_record *a, struct reftable_record *b, int hash_size);
-void reftable_record_key(struct reftable_record *rec, struct strbuf *dest);
+void reftable_record_key(struct reftable_record *rec, struct reftable_buf *dest);
 int reftable_record_copy_from(struct reftable_record *rec,
 			      struct reftable_record *src, int hash_size);
 uint8_t reftable_record_val_type(struct reftable_record *rec);
 int reftable_record_encode(struct reftable_record *rec, struct string_view dest,
 			   int hash_size);
-int reftable_record_decode(struct reftable_record *rec, struct strbuf key,
+int reftable_record_decode(struct reftable_record *rec, struct reftable_buf key,
 			   uint8_t extra, struct string_view src,
-			   int hash_size, struct strbuf *scratch);
+			   int hash_size, struct reftable_buf *scratch);
 int reftable_record_is_deletion(struct reftable_record *rec);
 
 static inline uint8_t reftable_record_type(struct reftable_record *rec)
diff --git a/reftable/stack.c b/reftable/stack.c
index d7bc1187dfb..6ba48ddce5d 100644
--- a/reftable/stack.c
+++ b/reftable/stack.c
@@ -31,13 +31,13 @@ static void reftable_addition_close(struct reftable_addition *add);
 static int reftable_stack_reload_maybe_reuse(struct reftable_stack *st,
 					     int reuse_open);
 
-static void stack_filename(struct strbuf *dest, struct reftable_stack *st,
+static void stack_filename(struct reftable_buf *dest, struct reftable_stack *st,
 			   const char *name)
 {
-	strbuf_reset(dest);
-	strbuf_addstr(dest, st->reftable_dir);
-	strbuf_addstr(dest, "/");
-	strbuf_addstr(dest, name);
+	reftable_buf_reset(dest);
+	reftable_buf_addstr(dest, st->reftable_dir);
+	reftable_buf_addstr(dest, "/");
+	reftable_buf_addstr(dest, name);
 }
 
 static ssize_t reftable_fd_write(void *arg, const void *data, size_t sz)
@@ -56,7 +56,7 @@ static int reftable_fd_flush(void *arg)
 int reftable_new_stack(struct reftable_stack **dest, const char *dir,
 		       const struct reftable_write_options *_opts)
 {
-	struct strbuf list_file_name = STRBUF_INIT;
+	struct reftable_buf list_file_name = REFTABLE_BUF_INIT;
 	struct reftable_write_options opts = { 0 };
 	struct reftable_stack *p;
 	int err;
@@ -74,11 +74,11 @@ int reftable_new_stack(struct reftable_stack **dest, const char *dir,
 
 	*dest = NULL;
 
-	strbuf_reset(&list_file_name);
-	strbuf_addstr(&list_file_name, dir);
-	strbuf_addstr(&list_file_name, "/tables.list");
+	reftable_buf_reset(&list_file_name);
+	reftable_buf_addstr(&list_file_name, dir);
+	reftable_buf_addstr(&list_file_name, "/tables.list");
 
-	p->list_file = strbuf_detach(&list_file_name, NULL);
+	p->list_file = reftable_buf_detach(&list_file_name);
 	p->list_fd = -1;
 	p->opts = opts;
 	p->reftable_dir = reftable_strdup(dir);
@@ -208,10 +208,10 @@ void reftable_stack_destroy(struct reftable_stack *st)
 
 	if (st->readers) {
 		int i = 0;
-		struct strbuf filename = STRBUF_INIT;
+		struct reftable_buf filename = REFTABLE_BUF_INIT;
 		for (i = 0; i < st->readers_len; i++) {
 			const char *name = reader_name(st->readers[i]);
-			strbuf_reset(&filename);
+			reftable_buf_reset(&filename);
 			if (names && !has_name(names, name)) {
 				stack_filename(&filename, st, name);
 			}
@@ -222,7 +222,7 @@ void reftable_stack_destroy(struct reftable_stack *st)
 				unlink(filename.buf);
 			}
 		}
-		strbuf_release(&filename);
+		reftable_buf_release(&filename);
 		st->readers_len = 0;
 		REFTABLE_FREE_AND_NULL(st->readers);
 	}
@@ -260,7 +260,7 @@ static int reftable_stack_reload_once(struct reftable_stack *st,
 	size_t reused_len = 0, reused_alloc = 0, names_len;
 	size_t new_readers_len = 0;
 	struct reftable_merged_table *new_merged = NULL;
-	struct strbuf table_path = STRBUF_INIT;
+	struct reftable_buf table_path = REFTABLE_BUF_INIT;
 	int err = 0;
 	size_t i;
 
@@ -374,7 +374,7 @@ static int reftable_stack_reload_once(struct reftable_stack *st,
 	reftable_free(new_readers);
 	reftable_free(reused);
 	reftable_free(cur);
-	strbuf_release(&table_path);
+	reftable_buf_release(&table_path);
 	return err;
 }
 
@@ -623,14 +623,14 @@ int reftable_stack_add(struct reftable_stack *st,
 	return 0;
 }
 
-static void format_name(struct strbuf *dest, uint64_t min, uint64_t max)
+static void format_name(struct reftable_buf *dest, uint64_t min, uint64_t max)
 {
 	char buf[100];
 	uint32_t rnd = (uint32_t)git_rand();
 	snprintf(buf, sizeof(buf), "0x%012" PRIx64 "-0x%012" PRIx64 "-%08x",
 		 min, max, rnd);
-	strbuf_reset(dest);
-	strbuf_addstr(dest, buf);
+	reftable_buf_reset(dest);
+	reftable_buf_addstr(dest, buf);
 }
 
 struct reftable_addition {
@@ -648,7 +648,7 @@ static int reftable_stack_init_addition(struct reftable_addition *add,
 					struct reftable_stack *st,
 					unsigned int flags)
 {
-	struct strbuf lock_file_name = STRBUF_INIT;
+	struct reftable_buf lock_file_name = REFTABLE_BUF_INIT;
 	int err;
 
 	add->stack = st;
@@ -690,13 +690,13 @@ static int reftable_stack_init_addition(struct reftable_addition *add,
 done:
 	if (err)
 		reftable_addition_close(add);
-	strbuf_release(&lock_file_name);
+	reftable_buf_release(&lock_file_name);
 	return err;
 }
 
 static void reftable_addition_close(struct reftable_addition *add)
 {
-	struct strbuf nm = STRBUF_INIT;
+	struct reftable_buf nm = REFTABLE_BUF_INIT;
 	size_t i;
 
 	for (i = 0; i < add->new_tables_len; i++) {
@@ -711,7 +711,7 @@ static void reftable_addition_close(struct reftable_addition *add)
 	add->new_tables_cap = 0;
 
 	rollback_lock_file(&add->tables_list_lock);
-	strbuf_release(&nm);
+	reftable_buf_release(&nm);
 }
 
 void reftable_addition_destroy(struct reftable_addition *add)
@@ -725,7 +725,7 @@ void reftable_addition_destroy(struct reftable_addition *add)
 
 int reftable_addition_commit(struct reftable_addition *add)
 {
-	struct strbuf table_list = STRBUF_INIT;
+	struct reftable_buf table_list = REFTABLE_BUF_INIT;
 	int lock_file_fd = get_lock_file_fd(&add->tables_list_lock);
 	int err = 0;
 	size_t i;
@@ -734,16 +734,16 @@ int reftable_addition_commit(struct reftable_addition *add)
 		goto done;
 
 	for (i = 0; i < add->stack->merged->readers_len; i++) {
-		strbuf_addstr(&table_list, add->stack->readers[i]->name);
-		strbuf_addstr(&table_list, "\n");
+		reftable_buf_addstr(&table_list, add->stack->readers[i]->name);
+		reftable_buf_addstr(&table_list, "\n");
 	}
 	for (i = 0; i < add->new_tables_len; i++) {
-		strbuf_addstr(&table_list, add->new_tables[i]);
-		strbuf_addstr(&table_list, "\n");
+		reftable_buf_addstr(&table_list, add->new_tables[i]);
+		reftable_buf_addstr(&table_list, "\n");
 	}
 
 	err = write_in_full(lock_file_fd, table_list.buf, table_list.len);
-	strbuf_release(&table_list);
+	reftable_buf_release(&table_list);
 	if (err < 0) {
 		err = REFTABLE_IO_ERROR;
 		goto done;
@@ -837,19 +837,19 @@ int reftable_addition_add(struct reftable_addition *add,
 					     void *arg),
 			  void *arg)
 {
-	struct strbuf temp_tab_file_name = STRBUF_INIT;
-	struct strbuf tab_file_name = STRBUF_INIT;
-	struct strbuf next_name = STRBUF_INIT;
+	struct reftable_buf temp_tab_file_name = REFTABLE_BUF_INIT;
+	struct reftable_buf tab_file_name = REFTABLE_BUF_INIT;
+	struct reftable_buf next_name = REFTABLE_BUF_INIT;
 	struct reftable_writer *wr = NULL;
 	struct tempfile *tab_file = NULL;
 	int err = 0;
 	int tab_fd;
 
-	strbuf_reset(&next_name);
+	reftable_buf_reset(&next_name);
 	format_name(&next_name, add->next_update_index, add->next_update_index);
 
 	stack_filename(&temp_tab_file_name, add->stack, next_name.buf);
-	strbuf_addstr(&temp_tab_file_name, ".temp.XXXXXX");
+	reftable_buf_addstr(&temp_tab_file_name, ".temp.XXXXXX");
 
 	tab_file = mks_tempfile(temp_tab_file_name.buf);
 	if (!tab_file) {
@@ -894,7 +894,7 @@ int reftable_addition_add(struct reftable_addition *add,
 	}
 
 	format_name(&next_name, wr->min_update_index, wr->max_update_index);
-	strbuf_addstr(&next_name, ".ref");
+	reftable_buf_addstr(&next_name, ".ref");
 	stack_filename(&tab_file_name, add->stack, next_name.buf);
 
 	/*
@@ -913,13 +913,13 @@ int reftable_addition_add(struct reftable_addition *add,
 		err = REFTABLE_OUT_OF_MEMORY_ERROR;
 		goto done;
 	}
-	add->new_tables[add->new_tables_len++] = strbuf_detach(&next_name, NULL);
+	add->new_tables[add->new_tables_len++] = reftable_buf_detach(&next_name);
 
 done:
 	delete_tempfile(&tab_file);
-	strbuf_release(&temp_tab_file_name);
-	strbuf_release(&tab_file_name);
-	strbuf_release(&next_name);
+	reftable_buf_release(&temp_tab_file_name);
+	reftable_buf_release(&tab_file_name);
+	reftable_buf_release(&next_name);
 	reftable_writer_free(wr);
 	return err;
 }
@@ -938,8 +938,8 @@ static int stack_compact_locked(struct reftable_stack *st,
 				struct reftable_log_expiry_config *config,
 				struct tempfile **tab_file_out)
 {
-	struct strbuf next_name = STRBUF_INIT;
-	struct strbuf tab_file_path = STRBUF_INIT;
+	struct reftable_buf next_name = REFTABLE_BUF_INIT;
+	struct reftable_buf tab_file_path = REFTABLE_BUF_INIT;
 	struct reftable_writer *wr = NULL;
 	struct tempfile *tab_file;
 	int tab_fd, err = 0;
@@ -948,7 +948,7 @@ static int stack_compact_locked(struct reftable_stack *st,
 		    reftable_reader_min_update_index(st->readers[first]),
 		    reftable_reader_max_update_index(st->readers[last]));
 	stack_filename(&tab_file_path, st, next_name.buf);
-	strbuf_addstr(&tab_file_path, ".temp.XXXXXX");
+	reftable_buf_addstr(&tab_file_path, ".temp.XXXXXX");
 
 	tab_file = mks_tempfile(tab_file_path.buf);
 	if (!tab_file) {
@@ -986,8 +986,8 @@ static int stack_compact_locked(struct reftable_stack *st,
 done:
 	delete_tempfile(&tab_file);
 	reftable_writer_free(wr);
-	strbuf_release(&next_name);
-	strbuf_release(&tab_file_path);
+	reftable_buf_release(&next_name);
+	reftable_buf_release(&tab_file_path);
 	return err;
 }
 
@@ -1111,10 +1111,10 @@ static int stack_compact_range(struct reftable_stack *st,
 			       struct reftable_log_expiry_config *expiry,
 			       unsigned int flags)
 {
-	struct strbuf tables_list_buf = STRBUF_INIT;
-	struct strbuf new_table_name = STRBUF_INIT;
-	struct strbuf new_table_path = STRBUF_INIT;
-	struct strbuf table_name = STRBUF_INIT;
+	struct reftable_buf tables_list_buf = REFTABLE_BUF_INIT;
+	struct reftable_buf new_table_name = REFTABLE_BUF_INIT;
+	struct reftable_buf new_table_path = REFTABLE_BUF_INIT;
+	struct reftable_buf table_name = REFTABLE_BUF_INIT;
 	struct lock_file tables_list_lock = LOCK_INIT;
 	struct lock_file *table_locks = NULL;
 	struct tempfile *new_table = NULL;
@@ -1372,7 +1372,7 @@ static int stack_compact_range(struct reftable_stack *st,
 	if (!is_empty_table) {
 		format_name(&new_table_name, st->readers[first]->min_update_index,
 			    st->readers[last]->max_update_index);
-		strbuf_addstr(&new_table_name, ".ref");
+		reftable_buf_addstr(&new_table_name, ".ref");
 		stack_filename(&new_table_path, st, new_table_name.buf);
 
 		err = rename_tempfile(&new_table, new_table_path.buf);
@@ -1388,16 +1388,16 @@ static int stack_compact_range(struct reftable_stack *st,
 	 * simply skip writing it.
 	 */
 	for (i = 0; i < first_to_replace; i++) {
-		strbuf_addstr(&tables_list_buf, names[i]);
-		strbuf_addstr(&tables_list_buf, "\n");
+		reftable_buf_addstr(&tables_list_buf, names[i]);
+		reftable_buf_addstr(&tables_list_buf, "\n");
 	}
 	if (!is_empty_table) {
-		strbuf_addstr(&tables_list_buf, new_table_name.buf);
-		strbuf_addstr(&tables_list_buf, "\n");
+		reftable_buf_addstr(&tables_list_buf, new_table_name.buf);
+		reftable_buf_addstr(&tables_list_buf, "\n");
 	}
 	for (i = last_to_replace + 1; names[i]; i++) {
-		strbuf_addstr(&tables_list_buf, names[i]);
-		strbuf_addstr(&tables_list_buf, "\n");
+		reftable_buf_addstr(&tables_list_buf, names[i]);
+		reftable_buf_addstr(&tables_list_buf, "\n");
 	}
 
 	err = write_in_full(get_lock_file_fd(&tables_list_lock),
@@ -1449,10 +1449,10 @@ static int stack_compact_range(struct reftable_stack *st,
 	reftable_free(table_locks);
 
 	delete_tempfile(&new_table);
-	strbuf_release(&new_table_name);
-	strbuf_release(&new_table_path);
-	strbuf_release(&tables_list_buf);
-	strbuf_release(&table_name);
+	reftable_buf_release(&new_table_name);
+	reftable_buf_release(&new_table_path);
+	reftable_buf_release(&tables_list_buf);
+	reftable_buf_release(&table_name);
 	free_names(names);
 
 	if (err == REFTABLE_LOCK_ERROR)
@@ -1666,7 +1666,7 @@ static void remove_maybe_stale_table(struct reftable_stack *st, uint64_t max,
 	uint64_t update_idx = 0;
 	struct reftable_block_source src = { NULL };
 	struct reftable_reader *rd = NULL;
-	struct strbuf table_path = STRBUF_INIT;
+	struct reftable_buf table_path = REFTABLE_BUF_INIT;
 	stack_filename(&table_path, st, name);
 
 	err = reftable_block_source_from_file(&src, table_path.buf);
@@ -1684,7 +1684,7 @@ static void remove_maybe_stale_table(struct reftable_stack *st, uint64_t max,
 		unlink(table_path.buf);
 	}
 done:
-	strbuf_release(&table_path);
+	reftable_buf_release(&table_path);
 }
 
 static int reftable_stack_clean_locked(struct reftable_stack *st)
diff --git a/reftable/system.h b/reftable/system.h
index d0cabd5d171..5ec85833434 100644
--- a/reftable/system.h
+++ b/reftable/system.h
@@ -13,7 +13,6 @@ license that can be found in the LICENSE file or at
 
 #include "git-compat-util.h"
 #include "lockfile.h"
-#include "strbuf.h"
 #include "tempfile.h"
 #include "hash.h" /* hash ID, sizes.*/
 #include "dir.h" /* remove_dir_recursively, for tests.*/
diff --git a/reftable/writer.c b/reftable/writer.c
index 031d8149a9c..da6941a78ac 100644
--- a/reftable/writer.c
+++ b/reftable/writer.c
@@ -115,7 +115,7 @@ static int writer_reinit_block_writer(struct reftable_writer *w, uint8_t typ)
 	if (w->next == 0)
 		block_start = header_size(writer_version(w));
 
-	strbuf_reset(&w->last_key);
+	reftable_buf_reset(&w->last_key);
 	ret = block_writer_init(&w->block_writer_data, typ, w->block,
 				w->opts.block_size, block_start,
 				hash_size(w->opts.hash_id));
@@ -146,8 +146,8 @@ int reftable_writer_new(struct reftable_writer **out,
 	if (opts.block_size >= (1 << 24))
 		BUG("configured block size exceeds 16MB");
 
-	strbuf_init(&wp->block_writer_data.last_key, 0);
-	strbuf_init(&wp->last_key, 0);
+	reftable_buf_init(&wp->block_writer_data.last_key);
+	reftable_buf_init(&wp->last_key);
 	REFTABLE_CALLOC_ARRAY(wp->block, opts.block_size);
 	if (!wp->block) {
 		reftable_free(wp);
@@ -179,7 +179,7 @@ static void writer_release(struct reftable_writer *w)
 		block_writer_release(&w->block_writer_data);
 		w->block_writer = NULL;
 		writer_clear_index(w);
-		strbuf_release(&w->last_key);
+		reftable_buf_release(&w->last_key);
 	}
 }
 
@@ -190,7 +190,7 @@ void reftable_writer_free(struct reftable_writer *w)
 }
 
 struct obj_index_tree_node {
-	struct strbuf hash;
+	struct reftable_buf hash;
 	uint64_t *offsets;
 	size_t offset_len;
 	size_t offset_cap;
@@ -198,16 +198,16 @@ struct obj_index_tree_node {
 
 #define OBJ_INDEX_TREE_NODE_INIT    \
 	{                           \
-		.hash = STRBUF_INIT \
+		.hash = REFTABLE_BUF_INIT \
 	}
 
 static int obj_index_tree_node_compare(const void *a, const void *b)
 {
-	return strbuf_cmp(&((const struct obj_index_tree_node *)a)->hash,
+	return reftable_buf_cmp(&((const struct obj_index_tree_node *)a)->hash,
 			  &((const struct obj_index_tree_node *)b)->hash);
 }
 
-static int writer_index_hash(struct reftable_writer *w, struct strbuf *hash)
+static int writer_index_hash(struct reftable_writer *w, struct reftable_buf *hash)
 {
 	uint64_t off = w->next;
 	struct obj_index_tree_node want = { .hash = *hash };
@@ -224,8 +224,8 @@ static int writer_index_hash(struct reftable_writer *w, struct strbuf *hash)
 
 		*key = empty;
 
-		strbuf_reset(&key->hash);
-		strbuf_add(&key->hash, hash->buf, hash->len);
+		reftable_buf_reset(&key->hash);
+		reftable_buf_add(&key->hash, hash->buf, hash->len);
 		tree_insert(&w->obj_index_tree, key,
 			    &obj_index_tree_node_compare);
 	} else {
@@ -246,17 +246,17 @@ static int writer_index_hash(struct reftable_writer *w, struct strbuf *hash)
 static int writer_add_record(struct reftable_writer *w,
 			     struct reftable_record *rec)
 {
-	struct strbuf key = STRBUF_INIT;
+	struct reftable_buf key = REFTABLE_BUF_INIT;
 	int err;
 
 	reftable_record_key(rec, &key);
-	if (strbuf_cmp(&w->last_key, &key) >= 0) {
+	if (reftable_buf_cmp(&w->last_key, &key) >= 0) {
 		err = REFTABLE_API_ERROR;
 		goto done;
 	}
 
-	strbuf_reset(&w->last_key);
-	strbuf_add(&w->last_key, key.buf, key.len);
+	reftable_buf_reset(&w->last_key);
+	reftable_buf_add(&w->last_key, key.buf, key.len);
 	if (!w->block_writer) {
 		err = writer_reinit_block_writer(w, reftable_record_type(rec));
 		if (err < 0)
@@ -303,7 +303,7 @@ static int writer_add_record(struct reftable_writer *w,
 	}
 
 done:
-	strbuf_release(&key);
+	reftable_buf_release(&key);
 	return err;
 }
 
@@ -316,7 +316,7 @@ int reftable_writer_add_ref(struct reftable_writer *w,
 			.ref = *ref
 		},
 	};
-	struct strbuf buf = STRBUF_INIT;
+	struct reftable_buf buf = REFTABLE_BUF_INIT;
 	int err;
 
 	if (!ref->refname ||
@@ -331,7 +331,7 @@ int reftable_writer_add_ref(struct reftable_writer *w,
 		goto out;
 
 	if (!w->opts.skip_index_objects && reftable_ref_record_val1(ref)) {
-		strbuf_add(&buf, (char *)reftable_ref_record_val1(ref),
+		reftable_buf_add(&buf, (char *)reftable_ref_record_val1(ref),
 			   hash_size(w->opts.hash_id));
 
 		err = writer_index_hash(w, &buf);
@@ -340,8 +340,8 @@ int reftable_writer_add_ref(struct reftable_writer *w,
 	}
 
 	if (!w->opts.skip_index_objects && reftable_ref_record_val2(ref)) {
-		strbuf_reset(&buf);
-		strbuf_add(&buf, reftable_ref_record_val2(ref),
+		reftable_buf_reset(&buf);
+		reftable_buf_add(&buf, reftable_ref_record_val2(ref),
 			   hash_size(w->opts.hash_id));
 
 		err = writer_index_hash(w, &buf);
@@ -352,7 +352,7 @@ int reftable_writer_add_ref(struct reftable_writer *w,
 	err = 0;
 
 out:
-	strbuf_release(&buf);
+	reftable_buf_release(&buf);
 	return err;
 }
 
@@ -393,7 +393,7 @@ int reftable_writer_add_log(struct reftable_writer *w,
 			    struct reftable_log_record *log)
 {
 	char *input_log_message = NULL;
-	struct strbuf cleaned_message = STRBUF_INIT;
+	struct reftable_buf cleaned_message = REFTABLE_BUF_INIT;
 	int err = 0;
 
 	if (log->value_type == REFTABLE_LOG_DELETION)
@@ -404,24 +404,24 @@ int reftable_writer_add_log(struct reftable_writer *w,
 
 	input_log_message = log->value.update.message;
 	if (!w->opts.exact_log_message && log->value.update.message) {
-		strbuf_addstr(&cleaned_message, log->value.update.message);
+		reftable_buf_addstr(&cleaned_message, log->value.update.message);
 		while (cleaned_message.len &&
 		       cleaned_message.buf[cleaned_message.len - 1] == '\n')
-			strbuf_setlen(&cleaned_message,
+			reftable_buf_setlen(&cleaned_message,
 				      cleaned_message.len - 1);
 		if (strchr(cleaned_message.buf, '\n')) {
 			/* multiple lines not allowed. */
 			err = REFTABLE_API_ERROR;
 			goto done;
 		}
-		strbuf_addstr(&cleaned_message, "\n");
+		reftable_buf_addstr(&cleaned_message, "\n");
 		log->value.update.message = cleaned_message.buf;
 	}
 
 	err = reftable_writer_add_log_verbatim(w, log);
 	log->value.update.message = input_log_message;
 done:
-	strbuf_release(&cleaned_message);
+	reftable_buf_release(&cleaned_message);
 	return err;
 }
 
@@ -504,7 +504,7 @@ static int writer_finish_section(struct reftable_writer *w)
 			return err;
 
 		for (i = 0; i < idx_len; i++)
-			strbuf_release(&idx[i].last_key);
+			reftable_buf_release(&idx[i].last_key);
 		reftable_free(idx);
 	}
 
@@ -521,13 +521,13 @@ static int writer_finish_section(struct reftable_writer *w)
 	bstats->max_index_level = max_level;
 
 	/* Reinit lastKey, as the next section can start with any key. */
-	strbuf_reset(&w->last_key);
+	reftable_buf_reset(&w->last_key);
 
 	return 0;
 }
 
 struct common_prefix_arg {
-	struct strbuf *last;
+	struct reftable_buf *last;
 	int max;
 };
 
@@ -594,7 +594,7 @@ static void object_record_free(void *void_arg UNUSED, void *key)
 	struct obj_index_tree_node *entry = key;
 
 	REFTABLE_FREE_AND_NULL(entry->offsets);
-	strbuf_release(&entry->hash);
+	reftable_buf_release(&entry->hash);
 	reftable_free(entry);
 }
 
@@ -708,7 +708,7 @@ int reftable_writer_close(struct reftable_writer *w)
 static void writer_clear_index(struct reftable_writer *w)
 {
 	for (size_t i = 0; w->index && i < w->index_len; i++)
-		strbuf_release(&w->index[i].last_key);
+		reftable_buf_release(&w->index[i].last_key);
 	REFTABLE_FREE_AND_NULL(w->index);
 	w->index_len = 0;
 	w->index_cap = 0;
@@ -717,7 +717,7 @@ static void writer_clear_index(struct reftable_writer *w)
 static int writer_flush_nonempty_block(struct reftable_writer *w)
 {
 	struct reftable_index_record index_record = {
-		.last_key = STRBUF_INIT,
+		.last_key = REFTABLE_BUF_INIT,
 	};
 	uint8_t typ = block_writer_type(w->block_writer);
 	struct reftable_block_stats *bstats;
@@ -777,8 +777,8 @@ static int writer_flush_nonempty_block(struct reftable_writer *w)
 		return REFTABLE_OUT_OF_MEMORY_ERROR;
 
 	index_record.offset = w->next;
-	strbuf_reset(&index_record.last_key);
-	strbuf_add(&index_record.last_key, w->block_writer->last_key.buf,
+	reftable_buf_reset(&index_record.last_key);
+	reftable_buf_add(&index_record.last_key, w->block_writer->last_key.buf,
 		   w->block_writer->last_key.len);
 	w->index[w->index_len] = index_record;
 	w->index_len++;
diff --git a/reftable/writer.h b/reftable/writer.h
index 8d0df9cc528..e8a6fbb7854 100644
--- a/reftable/writer.h
+++ b/reftable/writer.h
@@ -19,7 +19,7 @@ struct reftable_writer {
 	int (*flush)(void *);
 	void *write_arg;
 	int pending_padding;
-	struct strbuf last_key;
+	struct reftable_buf last_key;
 
 	/* offset of next block to write. */
 	uint64_t next;
diff --git a/t/unit-tests/lib-reftable.c b/t/unit-tests/lib-reftable.c
index 54c26c43e77..2ddf480588d 100644
--- a/t/unit-tests/lib-reftable.c
+++ b/t/unit-tests/lib-reftable.c
@@ -19,7 +19,7 @@ static int strbuf_writer_flush(void *arg UNUSED)
 	return 0;
 }
 
-struct reftable_writer *t_reftable_strbuf_writer(struct strbuf *buf,
+struct reftable_writer *t_reftable_strbuf_writer(struct reftable_buf *buf,
 						 struct reftable_write_options *opts)
 {
 	struct reftable_writer *writer;
@@ -29,7 +29,7 @@ struct reftable_writer *t_reftable_strbuf_writer(struct strbuf *buf,
 	return writer;
 }
 
-void t_reftable_write_to_buf(struct strbuf *buf,
+void t_reftable_write_to_buf(struct reftable_buf *buf,
 			     struct reftable_ref_record *refs,
 			     size_t nrefs,
 			     struct reftable_log_record *logs,
diff --git a/t/unit-tests/lib-reftable.h b/t/unit-tests/lib-reftable.h
index d1154190847..d4950fed3da 100644
--- a/t/unit-tests/lib-reftable.h
+++ b/t/unit-tests/lib-reftable.h
@@ -2,15 +2,16 @@
 #define LIB_REFTABLE_H
 
 #include "git-compat-util.h"
-#include "strbuf.h"
 #include "reftable/reftable-writer.h"
 
+struct reftable_buf;
+
 void t_reftable_set_hash(uint8_t *p, int i, uint32_t id);
 
-struct reftable_writer *t_reftable_strbuf_writer(struct strbuf *buf,
+struct reftable_writer *t_reftable_strbuf_writer(struct reftable_buf *buf,
 						 struct reftable_write_options *opts);
 
-void t_reftable_write_to_buf(struct strbuf *buf,
+void t_reftable_write_to_buf(struct reftable_buf *buf,
 			     struct reftable_ref_record *refs,
 			     size_t nrecords,
 			     struct reftable_log_record *logs,
diff --git a/t/unit-tests/t-reftable-basics.c b/t/unit-tests/t-reftable-basics.c
index 1fa77b6faff..a814e819756 100644
--- a/t/unit-tests/t-reftable-basics.c
+++ b/t/unit-tests/t-reftable-basics.c
@@ -99,8 +99,8 @@ int cmd_main(int argc UNUSED, const char *argv[] UNUSED)
 	}
 
 	if_test ("common_prefix_size works") {
-		struct strbuf a = STRBUF_INIT;
-		struct strbuf b = STRBUF_INIT;
+		struct reftable_buf a = REFTABLE_BUF_INIT;
+		struct reftable_buf b = REFTABLE_BUF_INIT;
 		struct {
 			const char *a, *b;
 			int want;
@@ -113,14 +113,14 @@ int cmd_main(int argc UNUSED, const char *argv[] UNUSED)
 		};
 
 		for (size_t i = 0; i < ARRAY_SIZE(cases); i++) {
-			strbuf_addstr(&a, cases[i].a);
-			strbuf_addstr(&b, cases[i].b);
+			reftable_buf_addstr(&a, cases[i].a);
+			reftable_buf_addstr(&b, cases[i].b);
 			check_int(common_prefix_size(&a, &b), ==, cases[i].want);
-			strbuf_reset(&a);
-			strbuf_reset(&b);
+			reftable_buf_reset(&a);
+			reftable_buf_reset(&b);
 		}
-		strbuf_release(&a);
-		strbuf_release(&b);
+		reftable_buf_release(&a);
+		reftable_buf_release(&b);
 	}
 
 	if_test ("put_be24 and get_be24 work") {
diff --git a/t/unit-tests/t-reftable-block.c b/t/unit-tests/t-reftable-block.c
index 8077bbc5e7a..56514b43630 100644
--- a/t/unit-tests/t-reftable-block.c
+++ b/t/unit-tests/t-reftable-block.c
@@ -20,7 +20,7 @@ static void t_ref_block_read_write(void)
 	const size_t block_size = 1024;
 	struct reftable_block block = { 0 };
 	struct block_writer bw = {
-		.last_key = STRBUF_INIT,
+		.last_key = REFTABLE_BUF_INIT,
 	};
 	struct reftable_record rec = {
 		.type = BLOCK_TYPE_REF,
@@ -29,7 +29,7 @@ static void t_ref_block_read_write(void)
 	int ret;
 	struct block_reader br = { 0 };
 	struct block_iter it = BLOCK_ITER_INIT;
-	struct strbuf want = STRBUF_INIT, buf = STRBUF_INIT;
+	struct reftable_buf want = REFTABLE_BUF_INIT, buf = REFTABLE_BUF_INIT;
 
 	REFTABLE_CALLOC_ARRAY(block.data, block_size);
 	check(block.data != NULL);
@@ -100,8 +100,8 @@ static void t_ref_block_read_write(void)
 	block_iter_close(&it);
 	reftable_record_release(&rec);
 	reftable_block_done(&br.block);
-	strbuf_release(&want);
-	strbuf_release(&buf);
+	reftable_buf_release(&want);
+	reftable_buf_release(&buf);
 	for (i = 0; i < N; i++)
 		reftable_record_release(&recs[i]);
 }
@@ -114,7 +114,7 @@ static void t_log_block_read_write(void)
 	const size_t block_size = 2048;
 	struct reftable_block block = { 0 };
 	struct block_writer bw = {
-		.last_key = STRBUF_INIT,
+		.last_key = REFTABLE_BUF_INIT,
 	};
 	struct reftable_record rec = {
 		.type = BLOCK_TYPE_LOG,
@@ -123,7 +123,7 @@ static void t_log_block_read_write(void)
 	int ret;
 	struct block_reader br = { 0 };
 	struct block_iter it = BLOCK_ITER_INIT;
-	struct strbuf want = STRBUF_INIT, buf = STRBUF_INIT;
+	struct reftable_buf want = REFTABLE_BUF_INIT, buf = REFTABLE_BUF_INIT;
 
 	REFTABLE_CALLOC_ARRAY(block.data, block_size);
 	check(block.data != NULL);
@@ -166,8 +166,8 @@ static void t_log_block_read_write(void)
 
 	for (i = 0; i < N; i++) {
 		block_iter_reset(&it);
-		strbuf_reset(&want);
-		strbuf_addstr(&want, recs[i].u.log.refname);
+		reftable_buf_reset(&want);
+		reftable_buf_addstr(&want, recs[i].u.log.refname);
 
 		ret = block_iter_seek_key(&it, &br, &want);
 		check_int(ret, ==, 0);
@@ -190,8 +190,8 @@ static void t_log_block_read_write(void)
 	block_iter_close(&it);
 	reftable_record_release(&rec);
 	reftable_block_done(&br.block);
-	strbuf_release(&want);
-	strbuf_release(&buf);
+	reftable_buf_release(&want);
+	reftable_buf_release(&buf);
 	for (i = 0; i < N; i++)
 		reftable_record_release(&recs[i]);
 }
@@ -204,7 +204,7 @@ static void t_obj_block_read_write(void)
 	const size_t block_size = 1024;
 	struct reftable_block block = { 0 };
 	struct block_writer bw = {
-		.last_key = STRBUF_INIT,
+		.last_key = REFTABLE_BUF_INIT,
 	};
 	struct reftable_record rec = {
 		.type = BLOCK_TYPE_OBJ,
@@ -213,7 +213,7 @@ static void t_obj_block_read_write(void)
 	int ret;
 	struct block_reader br = { 0 };
 	struct block_iter it = BLOCK_ITER_INIT;
-	struct strbuf want = STRBUF_INIT, buf = STRBUF_INIT;
+	struct reftable_buf want = REFTABLE_BUF_INIT, buf = REFTABLE_BUF_INIT;
 
 	REFTABLE_CALLOC_ARRAY(block.data, block_size);
 	check(block.data != NULL);
@@ -273,8 +273,8 @@ static void t_obj_block_read_write(void)
 	block_iter_close(&it);
 	reftable_record_release(&rec);
 	reftable_block_done(&br.block);
-	strbuf_release(&want);
-	strbuf_release(&buf);
+	reftable_buf_release(&want);
+	reftable_buf_release(&buf);
 	for (i = 0; i < N; i++)
 		reftable_record_release(&recs[i]);
 }
@@ -287,17 +287,17 @@ static void t_index_block_read_write(void)
 	const size_t block_size = 1024;
 	struct reftable_block block = { 0 };
 	struct block_writer bw = {
-		.last_key = STRBUF_INIT,
+		.last_key = REFTABLE_BUF_INIT,
 	};
 	struct reftable_record rec = {
 		.type = BLOCK_TYPE_INDEX,
-		.u.idx.last_key = STRBUF_INIT,
+		.u.idx.last_key = REFTABLE_BUF_INIT,
 	};
 	size_t i = 0;
 	int ret;
 	struct block_reader br = { 0 };
 	struct block_iter it = BLOCK_ITER_INIT;
-	struct strbuf want = STRBUF_INIT, buf = STRBUF_INIT;
+	struct reftable_buf want = REFTABLE_BUF_INIT, buf = REFTABLE_BUF_INIT;
 
 	REFTABLE_CALLOC_ARRAY(block.data, block_size);
 	check(block.data != NULL);
@@ -312,9 +312,9 @@ static void t_index_block_read_write(void)
 
 		snprintf(buf, sizeof(buf), "branch%02"PRIuMAX, (uintmax_t)i);
 
-		strbuf_init(&recs[i].u.idx.last_key, 9);
+		reftable_buf_init(&recs[i].u.idx.last_key);
 		recs[i].type = BLOCK_TYPE_INDEX;
-		strbuf_addstr(&recs[i].u.idx.last_key, buf);
+		reftable_buf_addstr(&recs[i].u.idx.last_key, buf);
 		recs[i].u.idx.offset = i;
 
 		ret = block_writer_add(&bw, &recs[i]);
@@ -365,8 +365,8 @@ static void t_index_block_read_write(void)
 	block_iter_close(&it);
 	reftable_record_release(&rec);
 	reftable_block_done(&br.block);
-	strbuf_release(&want);
-	strbuf_release(&buf);
+	reftable_buf_release(&want);
+	reftable_buf_release(&buf);
 	for (i = 0; i < N; i++)
 		reftable_record_release(&recs[i]);
 }
diff --git a/t/unit-tests/t-reftable-merged.c b/t/unit-tests/t-reftable-merged.c
index 3c84363e980..9b0162a4b32 100644
--- a/t/unit-tests/t-reftable-merged.c
+++ b/t/unit-tests/t-reftable-merged.c
@@ -20,7 +20,7 @@ static struct reftable_merged_table *
 merged_table_from_records(struct reftable_ref_record **refs,
 			  struct reftable_block_source **source,
 			  struct reftable_reader ***readers, const size_t *sizes,
-			  struct strbuf *buf, const size_t n)
+			  struct reftable_buf *buf, const size_t n)
 {
 	struct reftable_merged_table *mt = NULL;
 	struct reftable_write_options opts = {
@@ -75,7 +75,7 @@ static void t_merged_single_record(void)
 
 	struct reftable_ref_record *refs[] = { r1, r2, r3 };
 	size_t sizes[] = { ARRAY_SIZE(r1), ARRAY_SIZE(r2), ARRAY_SIZE(r3) };
-	struct strbuf bufs[3] = { STRBUF_INIT, STRBUF_INIT, STRBUF_INIT };
+	struct reftable_buf bufs[3] = { REFTABLE_BUF_INIT, REFTABLE_BUF_INIT, REFTABLE_BUF_INIT };
 	struct reftable_block_source *bs = NULL;
 	struct reftable_reader **readers = NULL;
 	struct reftable_merged_table *mt =
@@ -97,7 +97,7 @@ static void t_merged_single_record(void)
 	readers_destroy(readers, 3);
 	reftable_merged_table_free(mt);
 	for (size_t i = 0; i < ARRAY_SIZE(bufs); i++)
-		strbuf_release(&bufs[i]);
+		reftable_buf_release(&bufs[i]);
 	reftable_free(bs);
 }
 
@@ -152,7 +152,7 @@ static void t_merged_refs(void)
 
 	struct reftable_ref_record *refs[] = { r1, r2, r3 };
 	size_t sizes[3] = { ARRAY_SIZE(r1), ARRAY_SIZE(r2), ARRAY_SIZE(r3) };
-	struct strbuf bufs[3] = { STRBUF_INIT, STRBUF_INIT, STRBUF_INIT };
+	struct reftable_buf bufs[3] = { REFTABLE_BUF_INIT, REFTABLE_BUF_INIT, REFTABLE_BUF_INIT };
 	struct reftable_block_source *bs = NULL;
 	struct reftable_reader **readers = NULL;
 	struct reftable_merged_table *mt =
@@ -192,7 +192,7 @@ static void t_merged_refs(void)
 	reftable_free(out);
 
 	for (i = 0; i < 3; i++)
-		strbuf_release(&bufs[i]);
+		reftable_buf_release(&bufs[i]);
 	readers_destroy(readers, 3);
 	reftable_merged_table_free(mt);
 	reftable_free(bs);
@@ -234,8 +234,8 @@ static void t_merged_seek_multiple_times(void)
 	size_t sizes[] = {
 		ARRAY_SIZE(r1), ARRAY_SIZE(r2),
 	};
-	struct strbuf bufs[] = {
-		STRBUF_INIT, STRBUF_INIT,
+	struct reftable_buf bufs[] = {
+		REFTABLE_BUF_INIT, REFTABLE_BUF_INIT,
 	};
 	struct reftable_block_source *sources = NULL;
 	struct reftable_reader **readers = NULL;
@@ -265,7 +265,7 @@ static void t_merged_seek_multiple_times(void)
 	}
 
 	for (size_t i = 0; i < ARRAY_SIZE(bufs); i++)
-		strbuf_release(&bufs[i]);
+		reftable_buf_release(&bufs[i]);
 	readers_destroy(readers, ARRAY_SIZE(refs));
 	reftable_ref_record_release(&rec);
 	reftable_iterator_destroy(&it);
@@ -277,7 +277,7 @@ static struct reftable_merged_table *
 merged_table_from_log_records(struct reftable_log_record **logs,
 			      struct reftable_block_source **source,
 			      struct reftable_reader ***readers, const size_t *sizes,
-			      struct strbuf *buf, const size_t n)
+			      struct reftable_buf *buf, const size_t n)
 {
 	struct reftable_merged_table *mt = NULL;
 	struct reftable_write_options opts = {
@@ -361,7 +361,7 @@ static void t_merged_logs(void)
 
 	struct reftable_log_record *logs[] = { r1, r2, r3 };
 	size_t sizes[3] = { ARRAY_SIZE(r1), ARRAY_SIZE(r2), ARRAY_SIZE(r3) };
-	struct strbuf bufs[3] = { STRBUF_INIT, STRBUF_INIT, STRBUF_INIT };
+	struct reftable_buf bufs[3] = { REFTABLE_BUF_INIT, REFTABLE_BUF_INIT, REFTABLE_BUF_INIT };
 	struct reftable_block_source *bs = NULL;
 	struct reftable_reader **readers = NULL;
 	struct reftable_merged_table *mt = merged_table_from_log_records(
@@ -412,7 +412,7 @@ static void t_merged_logs(void)
 	reftable_free(out);
 
 	for (i = 0; i < 3; i++)
-		strbuf_release(&bufs[i]);
+		reftable_buf_release(&bufs[i]);
 	readers_destroy(readers, 3);
 	reftable_merged_table_free(mt);
 	reftable_free(bs);
@@ -421,7 +421,7 @@ static void t_merged_logs(void)
 static void t_default_write_opts(void)
 {
 	struct reftable_write_options opts = { 0 };
-	struct strbuf buf = STRBUF_INIT;
+	struct reftable_buf buf = REFTABLE_BUF_INIT;
 	struct reftable_writer *w = t_reftable_strbuf_writer(&buf, &opts);
 	struct reftable_ref_record rec = {
 		.refname = (char *) "master",
@@ -457,7 +457,7 @@ static void t_default_write_opts(void)
 
 	reftable_reader_decref(rd);
 	reftable_merged_table_free(merged);
-	strbuf_release(&buf);
+	reftable_buf_release(&buf);
 }
 
 
diff --git a/t/unit-tests/t-reftable-reader.c b/t/unit-tests/t-reftable-reader.c
index eea86966c0d..8a18d7f9be4 100644
--- a/t/unit-tests/t-reftable-reader.c
+++ b/t/unit-tests/t-reftable-reader.c
@@ -16,7 +16,7 @@ static int t_reader_seek_once(void)
 	struct reftable_ref_record ref = { 0 };
 	struct reftable_iterator it = { 0 };
 	struct reftable_reader *reader;
-	struct strbuf buf = STRBUF_INIT;
+	struct reftable_buf buf = REFTABLE_BUF_INIT;
 	int ret;
 
 	t_reftable_write_to_buf(&buf, records, ARRAY_SIZE(records), NULL, 0, NULL);
@@ -40,7 +40,7 @@ static int t_reader_seek_once(void)
 	reftable_ref_record_release(&ref);
 	reftable_iterator_destroy(&it);
 	reftable_reader_decref(reader);
-	strbuf_release(&buf);
+	reftable_buf_release(&buf);
 	return 0;
 }
 
@@ -57,7 +57,7 @@ static int t_reader_reseek(void)
 	struct reftable_ref_record ref = { 0 };
 	struct reftable_iterator it = { 0 };
 	struct reftable_reader *reader;
-	struct strbuf buf = STRBUF_INIT;
+	struct reftable_buf buf = REFTABLE_BUF_INIT;
 	int ret;
 
 	t_reftable_write_to_buf(&buf, records, ARRAY_SIZE(records), NULL, 0, NULL);
@@ -84,7 +84,7 @@ static int t_reader_reseek(void)
 	reftable_ref_record_release(&ref);
 	reftable_iterator_destroy(&it);
 	reftable_reader_decref(reader);
-	strbuf_release(&buf);
+	reftable_buf_release(&buf);
 	return 0;
 }
 
diff --git a/t/unit-tests/t-reftable-readwrite.c b/t/unit-tests/t-reftable-readwrite.c
index 5f59b0ad6ad..c56a33f1a1e 100644
--- a/t/unit-tests/t-reftable-readwrite.c
+++ b/t/unit-tests/t-reftable-readwrite.c
@@ -18,12 +18,12 @@ static const int update_index = 5;
 
 static void t_buffer(void)
 {
-	struct strbuf buf = STRBUF_INIT;
+	struct reftable_buf buf = REFTABLE_BUF_INIT;
 	struct reftable_block_source source = { 0 };
 	struct reftable_block out = { 0 };
 	int n;
 	uint8_t in[] = "hello";
-	strbuf_add(&buf, in, sizeof(in));
+	reftable_buf_add(&buf, in, sizeof(in));
 	block_source_from_strbuf(&source, &buf);
 	check_int(block_source_size(&source), ==, 6);
 	n = block_source_read_block(&source, &out, 0, sizeof(in));
@@ -37,10 +37,10 @@ static void t_buffer(void)
 
 	reftable_block_done(&out);
 	block_source_close(&source);
-	strbuf_release(&buf);
+	reftable_buf_release(&buf);
 }
 
-static void write_table(char ***names, struct strbuf *buf, int N,
+static void write_table(char ***names, struct reftable_buf *buf, int N,
 			int block_size, uint32_t hash_id)
 {
 	struct reftable_write_options opts = {
@@ -82,7 +82,7 @@ static void write_table(char ***names, struct strbuf *buf, int N,
 
 static void t_log_buffer_size(void)
 {
-	struct strbuf buf = STRBUF_INIT;
+	struct reftable_buf buf = REFTABLE_BUF_INIT;
 	struct reftable_write_options opts = {
 		.block_size = 4096,
 	};
@@ -114,12 +114,12 @@ static void t_log_buffer_size(void)
 	err = reftable_writer_close(w);
 	check(!err);
 	reftable_writer_free(w);
-	strbuf_release(&buf);
+	reftable_buf_release(&buf);
 }
 
 static void t_log_overflow(void)
 {
-	struct strbuf buf = STRBUF_INIT;
+	struct reftable_buf buf = REFTABLE_BUF_INIT;
 	char msg[256] = { 0 };
 	struct reftable_write_options opts = {
 		.block_size = ARRAY_SIZE(msg),
@@ -148,7 +148,7 @@ static void t_log_overflow(void)
 	err = reftable_writer_add_log(w, &log);
 	check_int(err, ==, REFTABLE_ENTRY_TOO_BIG_ERROR);
 	reftable_writer_free(w);
-	strbuf_release(&buf);
+	reftable_buf_release(&buf);
 }
 
 static void t_log_write_read(void)
@@ -161,7 +161,7 @@ static void t_log_write_read(void)
 	struct reftable_iterator it = { 0 };
 	struct reftable_reader *reader;
 	struct reftable_block_source source = { 0 };
-	struct strbuf buf = STRBUF_INIT;
+	struct reftable_buf buf = REFTABLE_BUF_INIT;
 	struct reftable_writer *w = t_reftable_strbuf_writer(&buf, &opts);
 	const struct reftable_stats *stats = NULL;
 	int N = 2, err, i, n;
@@ -247,7 +247,7 @@ static void t_log_write_read(void)
 	reftable_iterator_destroy(&it);
 
 	/* cleanup. */
-	strbuf_release(&buf);
+	reftable_buf_release(&buf);
 	free_names(names);
 	reftable_reader_decref(reader);
 }
@@ -260,7 +260,7 @@ static void t_log_zlib_corruption(void)
 	struct reftable_iterator it = { 0 };
 	struct reftable_reader *reader;
 	struct reftable_block_source source = { 0 };
-	struct strbuf buf = STRBUF_INIT;
+	struct reftable_buf buf = REFTABLE_BUF_INIT;
 	struct reftable_writer *w = t_reftable_strbuf_writer(&buf, &opts);
 	const struct reftable_stats *stats = NULL;
 	char message[100] = { 0 };
@@ -312,13 +312,13 @@ static void t_log_zlib_corruption(void)
 
 	/* cleanup. */
 	reftable_reader_decref(reader);
-	strbuf_release(&buf);
+	reftable_buf_release(&buf);
 }
 
 static void t_table_read_write_sequential(void)
 {
 	char **names;
-	struct strbuf buf = STRBUF_INIT;
+	struct reftable_buf buf = REFTABLE_BUF_INIT;
 	int N = 50;
 	struct reftable_iterator it = { 0 };
 	struct reftable_block_source source = { 0 };
@@ -352,25 +352,25 @@ static void t_table_read_write_sequential(void)
 
 	reftable_iterator_destroy(&it);
 	reftable_reader_decref(reader);
-	strbuf_release(&buf);
+	reftable_buf_release(&buf);
 	free_names(names);
 }
 
 static void t_table_write_small_table(void)
 {
 	char **names;
-	struct strbuf buf = STRBUF_INIT;
+	struct reftable_buf buf = REFTABLE_BUF_INIT;
 	int N = 1;
 	write_table(&names, &buf, N, 4096, GIT_SHA1_FORMAT_ID);
 	check_int(buf.len, <, 200);
-	strbuf_release(&buf);
+	reftable_buf_release(&buf);
 	free_names(names);
 }
 
 static void t_table_read_api(void)
 {
 	char **names;
-	struct strbuf buf = STRBUF_INIT;
+	struct reftable_buf buf = REFTABLE_BUF_INIT;
 	int N = 50;
 	struct reftable_reader *reader;
 	struct reftable_block_source source = { 0 };
@@ -393,17 +393,17 @@ static void t_table_read_api(void)
 	err = reftable_iterator_next_log(&it, &log);
 	check_int(err, ==, REFTABLE_API_ERROR);
 
-	strbuf_release(&buf);
+	reftable_buf_release(&buf);
 	free_names(names);
 	reftable_iterator_destroy(&it);
 	reftable_reader_decref(reader);
-	strbuf_release(&buf);
+	reftable_buf_release(&buf);
 }
 
 static void t_table_read_write_seek(int index, int hash_id)
 {
 	char **names;
-	struct strbuf buf = STRBUF_INIT;
+	struct reftable_buf buf = REFTABLE_BUF_INIT;
 	int N = 50;
 	struct reftable_reader *reader;
 	struct reftable_block_source source = { 0 };
@@ -411,7 +411,7 @@ static void t_table_read_write_seek(int index, int hash_id)
 	int i = 0;
 
 	struct reftable_iterator it = { 0 };
-	struct strbuf pastLast = STRBUF_INIT;
+	struct reftable_buf pastLast = REFTABLE_BUF_INIT;
 	struct reftable_ref_record ref = { 0 };
 
 	write_table(&names, &buf, N, 256, hash_id);
@@ -443,8 +443,8 @@ static void t_table_read_write_seek(int index, int hash_id)
 		reftable_iterator_destroy(&it);
 	}
 
-	strbuf_addstr(&pastLast, names[N - 1]);
-	strbuf_addstr(&pastLast, "/");
+	reftable_buf_addstr(&pastLast, names[N - 1]);
+	reftable_buf_addstr(&pastLast, "/");
 
 	err = reftable_reader_init_ref_iterator(reader, &it);
 	check(!err);
@@ -457,10 +457,10 @@ static void t_table_read_write_seek(int index, int hash_id)
 		check_int(err, >, 0);
 	}
 
-	strbuf_release(&pastLast);
+	reftable_buf_release(&pastLast);
 	reftable_iterator_destroy(&it);
 
-	strbuf_release(&buf);
+	reftable_buf_release(&buf);
 	free_names(names);
 	reftable_reader_decref(reader);
 }
@@ -492,7 +492,7 @@ static void t_table_refs_for(int indexed)
 	struct reftable_ref_record ref = { 0 };
 	struct reftable_reader *reader;
 	struct reftable_block_source source = { 0 };
-	struct strbuf buf = STRBUF_INIT;
+	struct reftable_buf buf = REFTABLE_BUF_INIT;
 	struct reftable_writer *w = t_reftable_strbuf_writer(&buf, &opts);
 	struct reftable_iterator it = { 0 };
 	int N = 50, n, j, err, i;
@@ -565,7 +565,7 @@ static void t_table_refs_for(int indexed)
 	}
 	check_int(j, ==, want_names_len);
 
-	strbuf_release(&buf);
+	reftable_buf_release(&buf);
 	free_names(want_names);
 	reftable_iterator_destroy(&it);
 	reftable_reader_decref(reader);
@@ -584,7 +584,7 @@ static void t_table_refs_for_obj_index(void)
 static void t_write_empty_table(void)
 {
 	struct reftable_write_options opts = { 0 };
-	struct strbuf buf = STRBUF_INIT;
+	struct reftable_buf buf = REFTABLE_BUF_INIT;
 	struct reftable_writer *w = t_reftable_strbuf_writer(&buf, &opts);
 	struct reftable_block_source source = { 0 };
 	struct reftable_reader *rd = NULL;
@@ -615,7 +615,7 @@ static void t_write_empty_table(void)
 
 	reftable_iterator_destroy(&it);
 	reftable_reader_decref(rd);
-	strbuf_release(&buf);
+	reftable_buf_release(&buf);
 }
 
 static void t_write_object_id_min_length(void)
@@ -623,7 +623,7 @@ static void t_write_object_id_min_length(void)
 	struct reftable_write_options opts = {
 		.block_size = 75,
 	};
-	struct strbuf buf = STRBUF_INIT;
+	struct reftable_buf buf = REFTABLE_BUF_INIT;
 	struct reftable_writer *w = t_reftable_strbuf_writer(&buf, &opts);
 	struct reftable_ref_record ref = {
 		.update_index = 1,
@@ -649,7 +649,7 @@ static void t_write_object_id_min_length(void)
 	check(!err);
 	check_int(reftable_writer_stats(w)->object_id_len, ==, 2);
 	reftable_writer_free(w);
-	strbuf_release(&buf);
+	reftable_buf_release(&buf);
 }
 
 static void t_write_object_id_length(void)
@@ -657,7 +657,7 @@ static void t_write_object_id_length(void)
 	struct reftable_write_options opts = {
 		.block_size = 75,
 	};
-	struct strbuf buf = STRBUF_INIT;
+	struct reftable_buf buf = REFTABLE_BUF_INIT;
 	struct reftable_writer *w = t_reftable_strbuf_writer(&buf, &opts);
 	struct reftable_ref_record ref = {
 		.update_index = 1,
@@ -684,13 +684,13 @@ static void t_write_object_id_length(void)
 	check(!err);
 	check_int(reftable_writer_stats(w)->object_id_len, ==, 16);
 	reftable_writer_free(w);
-	strbuf_release(&buf);
+	reftable_buf_release(&buf);
 }
 
 static void t_write_empty_key(void)
 {
 	struct reftable_write_options opts = { 0 };
-	struct strbuf buf = STRBUF_INIT;
+	struct reftable_buf buf = REFTABLE_BUF_INIT;
 	struct reftable_writer *w = t_reftable_strbuf_writer(&buf, &opts);
 	struct reftable_ref_record ref = {
 		.refname = (char *) "",
@@ -706,13 +706,13 @@ static void t_write_empty_key(void)
 	err = reftable_writer_close(w);
 	check_int(err, ==, REFTABLE_EMPTY_TABLE_ERROR);
 	reftable_writer_free(w);
-	strbuf_release(&buf);
+	reftable_buf_release(&buf);
 }
 
 static void t_write_key_order(void)
 {
 	struct reftable_write_options opts = { 0 };
-	struct strbuf buf = STRBUF_INIT;
+	struct reftable_buf buf = REFTABLE_BUF_INIT;
 	struct reftable_writer *w = t_reftable_strbuf_writer(&buf, &opts);
 	struct reftable_ref_record refs[2] = {
 		{
@@ -745,7 +745,7 @@ static void t_write_key_order(void)
 
 	reftable_writer_close(w);
 	reftable_writer_free(w);
-	strbuf_release(&buf);
+	reftable_buf_release(&buf);
 }
 
 static void t_write_multiple_indices(void)
@@ -753,7 +753,7 @@ static void t_write_multiple_indices(void)
 	struct reftable_write_options opts = {
 		.block_size = 100,
 	};
-	struct strbuf writer_buf = STRBUF_INIT;
+	struct reftable_buf writer_buf = REFTABLE_BUF_INIT;
 	struct reftable_block_source source = { 0 };
 	struct reftable_iterator it = { 0 };
 	const struct reftable_stats *stats;
@@ -822,7 +822,7 @@ static void t_write_multiple_indices(void)
 	reftable_iterator_destroy(&it);
 	reftable_writer_free(writer);
 	reftable_reader_decref(reader);
-	strbuf_release(&writer_buf);
+	reftable_buf_release(&writer_buf);
 }
 
 static void t_write_multi_level_index(void)
@@ -830,7 +830,7 @@ static void t_write_multi_level_index(void)
 	struct reftable_write_options opts = {
 		.block_size = 100,
 	};
-	struct strbuf writer_buf = STRBUF_INIT, buf = STRBUF_INIT;
+	struct reftable_buf writer_buf = REFTABLE_BUF_INIT, buf = REFTABLE_BUF_INIT;
 	struct reftable_block_source source = { 0 };
 	struct reftable_iterator it = { 0 };
 	const struct reftable_stats *stats;
@@ -878,13 +878,13 @@ static void t_write_multi_level_index(void)
 	reftable_iterator_destroy(&it);
 	reftable_writer_free(writer);
 	reftable_reader_decref(reader);
-	strbuf_release(&writer_buf);
-	strbuf_release(&buf);
+	reftable_buf_release(&writer_buf);
+	reftable_buf_release(&buf);
 }
 
 static void t_corrupt_table_empty(void)
 {
-	struct strbuf buf = STRBUF_INIT;
+	struct reftable_buf buf = REFTABLE_BUF_INIT;
 	struct reftable_block_source source = { 0 };
 	struct reftable_reader *reader;
 	int err;
@@ -897,17 +897,17 @@ static void t_corrupt_table_empty(void)
 static void t_corrupt_table(void)
 {
 	uint8_t zeros[1024] = { 0 };
-	struct strbuf buf = STRBUF_INIT;
+	struct reftable_buf buf = REFTABLE_BUF_INIT;
 	struct reftable_block_source source = { 0 };
 	struct reftable_reader *reader;
 	int err;
-	strbuf_add(&buf, zeros, sizeof(zeros));
+	reftable_buf_add(&buf, zeros, sizeof(zeros));
 
 	block_source_from_strbuf(&source, &buf);
 	err = reftable_reader_new(&reader, &source, "file.log");
 	check_int(err, ==, REFTABLE_FORMAT_ERROR);
 
-	strbuf_release(&buf);
+	reftable_buf_release(&buf);
 }
 
 int cmd_main(int argc UNUSED, const char *argv[] UNUSED)
diff --git a/t/unit-tests/t-reftable-record.c b/t/unit-tests/t-reftable-record.c
index a7f67d4d9f2..f2dd01688f3 100644
--- a/t/unit-tests/t-reftable-record.c
+++ b/t/unit-tests/t-reftable-record.c
@@ -116,7 +116,7 @@ static void t_reftable_ref_record_compare_name(void)
 
 static void t_reftable_ref_record_roundtrip(void)
 {
-	struct strbuf scratch = STRBUF_INIT;
+	struct reftable_buf scratch = REFTABLE_BUF_INIT;
 
 	for (int i = REFTABLE_REF_DELETION; i < REFTABLE_NR_REF_VALUETYPES; i++) {
 		struct reftable_record in = {
@@ -124,7 +124,7 @@ static void t_reftable_ref_record_roundtrip(void)
 			.u.ref.value_type = i,
 		};
 		struct reftable_record out = { .type = BLOCK_TYPE_REF };
-		struct strbuf key = STRBUF_INIT;
+		struct reftable_buf key = REFTABLE_BUF_INIT;
 		uint8_t buffer[1024] = { 0 };
 		struct string_view dest = {
 			.buf = buffer,
@@ -166,11 +166,11 @@ static void t_reftable_ref_record_roundtrip(void)
 						 GIT_SHA1_RAWSZ));
 		reftable_record_release(&in);
 
-		strbuf_release(&key);
+		reftable_buf_release(&key);
 		reftable_record_release(&out);
 	}
 
-	strbuf_release(&scratch);
+	reftable_buf_release(&scratch);
 }
 
 static void t_reftable_log_record_comparison(void)
@@ -262,7 +262,7 @@ static void t_reftable_log_record_roundtrip(void)
 			.value_type = REFTABLE_LOG_UPDATE,
 		}
 	};
-	struct strbuf scratch = STRBUF_INIT;
+	struct reftable_buf scratch = REFTABLE_BUF_INIT;
 	set_hash(in[0].value.update.new_hash, 1);
 	set_hash(in[0].value.update.old_hash, 2);
 	set_hash(in[2].value.update.new_hash, 3);
@@ -274,7 +274,7 @@ static void t_reftable_log_record_roundtrip(void)
 
 	for (size_t i = 0; i < ARRAY_SIZE(in); i++) {
 		struct reftable_record rec = { .type = BLOCK_TYPE_LOG };
-		struct strbuf key = STRBUF_INIT;
+		struct reftable_buf key = REFTABLE_BUF_INIT;
 		uint8_t buffer[1024] = { 0 };
 		struct string_view dest = {
 			.buf = buffer,
@@ -313,11 +313,11 @@ static void t_reftable_log_record_roundtrip(void)
 		check(reftable_log_record_equal(&in[i], &out.u.log,
 						 GIT_SHA1_RAWSZ));
 		reftable_log_record_release(&in[i]);
-		strbuf_release(&key);
+		reftable_buf_release(&key);
 		reftable_record_release(&out);
 	}
 
-	strbuf_release(&scratch);
+	reftable_buf_release(&scratch);
 }
 
 static void t_key_roundtrip(void)
@@ -327,30 +327,30 @@ static void t_key_roundtrip(void)
 		.buf = buffer,
 		.len = sizeof(buffer),
 	};
-	struct strbuf last_key = STRBUF_INIT;
-	struct strbuf key = STRBUF_INIT;
-	struct strbuf roundtrip = STRBUF_INIT;
+	struct reftable_buf last_key = REFTABLE_BUF_INIT;
+	struct reftable_buf key = REFTABLE_BUF_INIT;
+	struct reftable_buf roundtrip = REFTABLE_BUF_INIT;
 	int restart;
 	uint8_t extra;
 	int n, m;
 	uint8_t rt_extra;
 
-	strbuf_addstr(&last_key, "refs/heads/master");
-	strbuf_addstr(&key, "refs/tags/bla");
+	reftable_buf_addstr(&last_key, "refs/heads/master");
+	reftable_buf_addstr(&key, "refs/tags/bla");
 	extra = 6;
 	n = reftable_encode_key(&restart, dest, last_key, key, extra);
 	check(!restart);
 	check_int(n, >, 0);
 
-	strbuf_addstr(&roundtrip, "refs/heads/master");
+	reftable_buf_addstr(&roundtrip, "refs/heads/master");
 	m = reftable_decode_key(&roundtrip, &rt_extra, dest);
 	check_int(n, ==, m);
-	check(!strbuf_cmp(&key, &roundtrip));
+	check(!reftable_buf_cmp(&key, &roundtrip));
 	check_int(rt_extra, ==, extra);
 
-	strbuf_release(&last_key);
-	strbuf_release(&key);
-	strbuf_release(&roundtrip);
+	reftable_buf_release(&last_key);
+	reftable_buf_release(&key);
+	reftable_buf_release(&roundtrip);
 }
 
 static void t_reftable_obj_record_comparison(void)
@@ -413,7 +413,7 @@ static void t_reftable_obj_record_roundtrip(void)
 			.hash_prefix_len = 5,
 		},
 	};
-	struct strbuf scratch = STRBUF_INIT;
+	struct reftable_buf scratch = REFTABLE_BUF_INIT;
 
 	for (size_t i = 0; i < ARRAY_SIZE(recs); i++) {
 		uint8_t buffer[1024] = { 0 };
@@ -427,7 +427,7 @@ static void t_reftable_obj_record_roundtrip(void)
 				.obj = recs[i],
 			},
 		};
-		struct strbuf key = STRBUF_INIT;
+		struct reftable_buf key = REFTABLE_BUF_INIT;
 		struct reftable_record out = { .type = BLOCK_TYPE_OBJ };
 		int n, m;
 		uint8_t extra;
@@ -443,11 +443,11 @@ static void t_reftable_obj_record_roundtrip(void)
 		check_int(n, ==, m);
 
 		check(reftable_record_equal(&in, &out, GIT_SHA1_RAWSZ));
-		strbuf_release(&key);
+		reftable_buf_release(&key);
 		reftable_record_release(&out);
 	}
 
-	strbuf_release(&scratch);
+	reftable_buf_release(&scratch);
 }
 
 static void t_reftable_index_record_comparison(void)
@@ -456,22 +456,22 @@ static void t_reftable_index_record_comparison(void)
 		{
 			.type = BLOCK_TYPE_INDEX,
 			.u.idx.offset = 22,
-			.u.idx.last_key = STRBUF_INIT,
+			.u.idx.last_key = REFTABLE_BUF_INIT,
 		},
 		{
 			.type = BLOCK_TYPE_INDEX,
 			.u.idx.offset = 32,
-			.u.idx.last_key = STRBUF_INIT,
+			.u.idx.last_key = REFTABLE_BUF_INIT,
 		},
 		{
 			.type = BLOCK_TYPE_INDEX,
 			.u.idx.offset = 32,
-			.u.idx.last_key = STRBUF_INIT,
+			.u.idx.last_key = REFTABLE_BUF_INIT,
 		},
 	};
-	strbuf_addstr(&in[0].u.idx.last_key, "refs/heads/master");
-	strbuf_addstr(&in[1].u.idx.last_key, "refs/heads/master");
-	strbuf_addstr(&in[2].u.idx.last_key, "refs/heads/branch");
+	reftable_buf_addstr(&in[0].u.idx.last_key, "refs/heads/master");
+	reftable_buf_addstr(&in[1].u.idx.last_key, "refs/heads/master");
+	reftable_buf_addstr(&in[2].u.idx.last_key, "refs/heads/branch");
 
 	check(!reftable_record_equal(&in[0], &in[1], GIT_SHA1_RAWSZ));
 	check(!reftable_record_cmp(&in[0], &in[1]));
@@ -493,7 +493,7 @@ static void t_reftable_index_record_roundtrip(void)
 		.type = BLOCK_TYPE_INDEX,
 		.u.idx = {
 			.offset = 42,
-			.last_key = STRBUF_INIT,
+			.last_key = REFTABLE_BUF_INIT,
 		},
 	};
 	uint8_t buffer[1024] = { 0 };
@@ -501,21 +501,21 @@ static void t_reftable_index_record_roundtrip(void)
 		.buf = buffer,
 		.len = sizeof(buffer),
 	};
-	struct strbuf scratch = STRBUF_INIT;
-	struct strbuf key = STRBUF_INIT;
+	struct reftable_buf scratch = REFTABLE_BUF_INIT;
+	struct reftable_buf key = REFTABLE_BUF_INIT;
 	struct reftable_record out = {
 		.type = BLOCK_TYPE_INDEX,
-		.u.idx = { .last_key = STRBUF_INIT },
+		.u.idx = { .last_key = REFTABLE_BUF_INIT },
 	};
 	int n, m;
 	uint8_t extra;
 
-	strbuf_addstr(&in.u.idx.last_key, "refs/heads/master");
+	reftable_buf_addstr(&in.u.idx.last_key, "refs/heads/master");
 	reftable_record_key(&in, &key);
 	t_copy(&in);
 
 	check(!reftable_record_is_deletion(&in));
-	check(!strbuf_cmp(&key, &in.u.idx.last_key));
+	check(!reftable_buf_cmp(&key, &in.u.idx.last_key));
 	n = reftable_record_encode(&in, dest, GIT_SHA1_RAWSZ);
 	check_int(n, >, 0);
 
@@ -527,9 +527,9 @@ static void t_reftable_index_record_roundtrip(void)
 	check(reftable_record_equal(&in, &out, GIT_SHA1_RAWSZ));
 
 	reftable_record_release(&out);
-	strbuf_release(&key);
-	strbuf_release(&scratch);
-	strbuf_release(&in.u.idx.last_key);
+	reftable_buf_release(&key);
+	reftable_buf_release(&scratch);
+	reftable_buf_release(&in.u.idx.last_key);
 }
 
 int cmd_main(int argc UNUSED, const char *argv[] UNUSED)
diff --git a/t/unit-tests/t-reftable-stack.c b/t/unit-tests/t-reftable-stack.c
index b56ea774312..f49856270d6 100644
--- a/t/unit-tests/t-reftable-stack.c
+++ b/t/unit-tests/t-reftable-stack.c
@@ -16,7 +16,7 @@ license that can be found in the LICENSE file or at
 
 static void clear_dir(const char *dirname)
 {
-	struct strbuf path = STRBUF_INIT;
+	struct strbuf path = REFTABLE_BUF_INIT;
 	strbuf_addstr(&path, dirname);
 	remove_dir_recursively(&path, 0);
 	strbuf_release(&path);
@@ -145,7 +145,7 @@ static int write_test_log(struct reftable_writer *wr, void *arg)
 static void t_reftable_stack_add_one(void)
 {
 	char *dir = get_tmp_dir(__LINE__);
-	struct strbuf scratch = STRBUF_INIT;
+	struct reftable_buf scratch = REFTABLE_BUF_INIT;
 	int mask = umask(002);
 	struct reftable_write_options opts = {
 		.default_permissions = 0660,
@@ -172,17 +172,17 @@ static void t_reftable_stack_add_one(void)
 	check_int(st->readers_len, >, 0);
 
 #ifndef GIT_WINDOWS_NATIVE
-	strbuf_addstr(&scratch, dir);
-	strbuf_addstr(&scratch, "/tables.list");
+	reftable_buf_addstr(&scratch, dir);
+	reftable_buf_addstr(&scratch, "/tables.list");
 	err = stat(scratch.buf, &stat_result);
 	check(!err);
 	check_int((stat_result.st_mode & 0777), ==, opts.default_permissions);
 
-	strbuf_reset(&scratch);
-	strbuf_addstr(&scratch, dir);
-	strbuf_addstr(&scratch, "/");
+	reftable_buf_reset(&scratch);
+	reftable_buf_addstr(&scratch, dir);
+	reftable_buf_addstr(&scratch, "/");
 	/* do not try at home; not an external API for reftable. */
-	strbuf_addstr(&scratch, st->readers[0]->name);
+	reftable_buf_addstr(&scratch, st->readers[0]->name);
 	err = stat(scratch.buf, &stat_result);
 	check(!err);
 	check_int((stat_result.st_mode & 0777), ==, opts.default_permissions);
@@ -192,7 +192,7 @@ static void t_reftable_stack_add_one(void)
 
 	reftable_ref_record_release(&dest);
 	reftable_stack_destroy(st);
-	strbuf_release(&scratch);
+	reftable_buf_release(&scratch);
 	clear_dir(dir);
 	umask(mask);
 }
@@ -414,7 +414,7 @@ static void t_reftable_stack_auto_compaction_fails_gracefully(void)
 	};
 	struct reftable_write_options opts = { 0 };
 	struct reftable_stack *st;
-	struct strbuf table_path = STRBUF_INIT;
+	struct reftable_buf table_path = REFTABLE_BUF_INIT;
 	char *dir = get_tmp_dir(__LINE__);
 	int err;
 
@@ -432,10 +432,10 @@ static void t_reftable_stack_auto_compaction_fails_gracefully(void)
 	 * Adding a new table to the stack should not be impacted by this, even
 	 * though auto-compaction will now fail.
 	 */
-	strbuf_addstr(&table_path, dir);
-	strbuf_addstr(&table_path, "/");
-	strbuf_addstr(&table_path, st->readers[0]->name);
-	strbuf_addstr(&table_path, ".lock");
+	reftable_buf_addstr(&table_path, dir);
+	reftable_buf_addstr(&table_path, "/");
+	reftable_buf_addstr(&table_path, st->readers[0]->name);
+	reftable_buf_addstr(&table_path, ".lock");
 	write_file_buf(table_path.buf, "", 0);
 
 	ref.update_index = 2;
@@ -446,7 +446,7 @@ static void t_reftable_stack_auto_compaction_fails_gracefully(void)
 	check_int(st->stats.failures, ==, 1);
 
 	reftable_stack_destroy(st);
-	strbuf_release(&table_path);
+	reftable_buf_release(&table_path);
 	clear_dir(dir);
 }
 
@@ -516,7 +516,7 @@ static void t_reftable_stack_add(void)
 	char *dir = get_tmp_dir(__LINE__);
 	struct reftable_ref_record refs[2] = { 0 };
 	struct reftable_log_record logs[2] = { 0 };
-	struct strbuf path = STRBUF_INIT;
+	struct reftable_buf path = REFTABLE_BUF_INIT;
 	struct stat stat_result;
 	size_t i, N = ARRAY_SIZE(refs);
 
@@ -575,17 +575,17 @@ static void t_reftable_stack_add(void)
 	}
 
 #ifndef GIT_WINDOWS_NATIVE
-	strbuf_addstr(&path, dir);
-	strbuf_addstr(&path, "/tables.list");
+	reftable_buf_addstr(&path, dir);
+	reftable_buf_addstr(&path, "/tables.list");
 	err = stat(path.buf, &stat_result);
 	check(!err);
 	check_int((stat_result.st_mode & 0777), ==, opts.default_permissions);
 
-	strbuf_reset(&path);
-	strbuf_addstr(&path, dir);
-	strbuf_addstr(&path, "/");
+	reftable_buf_reset(&path);
+	reftable_buf_addstr(&path, dir);
+	reftable_buf_addstr(&path, "/");
 	/* do not try at home; not an external API for reftable. */
-	strbuf_addstr(&path, st->readers[0]->name);
+	reftable_buf_addstr(&path, st->readers[0]->name);
 	err = stat(path.buf, &stat_result);
 	check(!err);
 	check_int((stat_result.st_mode & 0777), ==, opts.default_permissions);
@@ -599,7 +599,7 @@ static void t_reftable_stack_add(void)
 		reftable_ref_record_release(&refs[i]);
 		reftable_log_record_release(&logs[i]);
 	}
-	strbuf_release(&path);
+	reftable_buf_release(&path);
 	clear_dir(dir);
 }
 
@@ -1063,7 +1063,7 @@ static void t_reftable_stack_auto_compaction_with_locked_tables(void)
 		.disable_auto_compact = 1,
 	};
 	struct reftable_stack *st = NULL;
-	struct strbuf buf = STRBUF_INIT;
+	struct reftable_buf buf = REFTABLE_BUF_INIT;
 	char *dir = get_tmp_dir(__LINE__);
 	int err;
 
@@ -1078,10 +1078,10 @@ static void t_reftable_stack_auto_compaction_with_locked_tables(void)
 	 * size, we expect that auto-compaction will want to compact all of the
 	 * tables. Locking any of the tables will keep it from doing so.
 	 */
-	strbuf_addstr(&buf, dir);
-	strbuf_addstr(&buf, "/");
-	strbuf_addstr(&buf, st->readers[2]->name);
-	strbuf_addstr(&buf, ".lock");
+	reftable_buf_addstr(&buf, dir);
+	reftable_buf_addstr(&buf, "/");
+	reftable_buf_addstr(&buf, st->readers[2]->name);
+	reftable_buf_addstr(&buf, ".lock");
 	write_file_buf(buf.buf, "", 0);
 
 	/*
@@ -1096,7 +1096,7 @@ static void t_reftable_stack_auto_compaction_with_locked_tables(void)
 	check_int(st->merged->readers_len, ==, 4);
 
 	reftable_stack_destroy(st);
-	strbuf_release(&buf);
+	reftable_buf_release(&buf);
 	clear_dir(dir);
 }
 
@@ -1153,7 +1153,7 @@ static void t_reftable_stack_compaction_with_locked_tables(void)
 		.disable_auto_compact = 1,
 	};
 	struct reftable_stack *st = NULL;
-	struct strbuf buf = STRBUF_INIT;
+	struct reftable_buf buf = REFTABLE_BUF_INIT;
 	char *dir = get_tmp_dir(__LINE__);
 	int err;
 
@@ -1164,10 +1164,10 @@ static void t_reftable_stack_compaction_with_locked_tables(void)
 	check_int(st->merged->readers_len, ==, 3);
 
 	/* Lock one of the tables that we're about to compact. */
-	strbuf_addstr(&buf, dir);
-	strbuf_addstr(&buf, "/");
-	strbuf_addstr(&buf, st->readers[1]->name);
-	strbuf_addstr(&buf, ".lock");
+	reftable_buf_addstr(&buf, dir);
+	reftable_buf_addstr(&buf, "/");
+	reftable_buf_addstr(&buf, st->readers[1]->name);
+	reftable_buf_addstr(&buf, ".lock");
 	write_file_buf(buf.buf, "", 0);
 
 	/*
@@ -1180,7 +1180,7 @@ static void t_reftable_stack_compaction_with_locked_tables(void)
 	check_int(st->merged->readers_len, ==, 3);
 
 	reftable_stack_destroy(st);
-	strbuf_release(&buf);
+	reftable_buf_release(&buf);
 	clear_dir(dir);
 }
 
@@ -1306,7 +1306,7 @@ static void t_reftable_stack_reload_with_missing_table(void)
 	struct reftable_stack *st = NULL;
 	struct reftable_ref_record rec = { 0 };
 	struct reftable_iterator it = { 0 };
-	struct strbuf table_path = STRBUF_INIT, content = STRBUF_INIT;
+	struct reftable_buf table_path = REFTABLE_BUF_INIT, content = REFTABLE_BUF_INIT;
 	char *dir = get_tmp_dir(__LINE__);
 	int err;
 
@@ -1324,13 +1324,13 @@ static void t_reftable_stack_reload_with_missing_table(void)
 	 * our old readers. This should trigger a partial reload of the stack,
 	 * where we try to reuse our old readers.
 	*/
-	strbuf_addstr(&content, st->readers[0]->name);
-	strbuf_addstr(&content, "\n");
-	strbuf_addstr(&content, st->readers[1]->name);
-	strbuf_addstr(&content, "\n");
-	strbuf_addstr(&content, "garbage\n");
-	strbuf_addstr(&table_path, st->list_file);
-	strbuf_addstr(&table_path, ".lock");
+	reftable_buf_addstr(&content, st->readers[0]->name);
+	reftable_buf_addstr(&content, "\n");
+	reftable_buf_addstr(&content, st->readers[1]->name);
+	reftable_buf_addstr(&content, "\n");
+	reftable_buf_addstr(&content, "garbage\n");
+	reftable_buf_addstr(&table_path, st->list_file);
+	reftable_buf_addstr(&table_path, ".lock");
 	write_file_buf(table_path.buf, content.buf, content.len);
 	err = rename(table_path.buf, st->list_file);
 	check(!err);
@@ -1355,8 +1355,8 @@ static void t_reftable_stack_reload_with_missing_table(void)
 	reftable_ref_record_release(&rec);
 	reftable_iterator_destroy(&it);
 	reftable_stack_destroy(st);
-	strbuf_release(&table_path);
-	strbuf_release(&content);
+	reftable_buf_release(&table_path);
+	reftable_buf_release(&content);
 	clear_dir(dir);
 }
 
-- 
2.47.0.72.gef8ce8f3d4.dirty
Previous: Patrick SteinhardtNext: Patrick Steinhardt
Message 54 of 63 in “reftable: stop using `struct strbuf`”
  1. 00/10 reftable: stop using `struct strbuf`Patrick Steinhardt, Oct 11, 2024
  2. 01/10 reftable: stop using `strbuf_addbuf()`Patrick Steinhardt, Oct 11, 2024
  3. 02/10 reftable: stop using `strbuf_addf()`Patrick Steinhardt, Oct 11, 2024
  4. karthik nayakOct 11, 2024
  5. Patrick SteinhardtOct 14, 2024
  6. 03/10 reftable/basics: provide new `reftable_buf` interfacePatrick Steinhardt, Oct 11, 2024
  7. karthik nayakOct 11, 2024
  8. Patrick SteinhardtOct 14, 2024
  9. 04/10 reftable: convert from `strbuf` to `reftable_buf`Patrick Steinhardt, Oct 11, 2024
  10. karthik nayakOct 11, 2024
  11. Patrick SteinhardtOct 14, 2024
  12. 05/10 reftable/blocksource: adapt interface namePatrick Steinhardt, Oct 11, 2024
  13. 06/10 t/unit-tests: check for `reftable_buf` allocation errorsPatrick Steinhardt, Oct 11, 2024
  14. 07/10 reftable/stack: adapt `format_name()` to handle allocation failuresPatrick Steinhardt, Oct 11, 2024
  15. 08/10 reftable/record: adapt `reftable_record_key()` to handle allocation failuresPatrick Steinhardt, Oct 11, 2024
  16. 09/10 reftable/stack: adapt `stack_filename()` to handle allocation failuresPatrick Steinhardt, Oct 11, 2024
  17. 10/10 reftable: handle trivial `reftable_buf` errorsPatrick Steinhardt, Oct 11, 2024
  18. karthik nayakOct 11, 2024
  19. Patrick SteinhardtOct 14, 2024
  20. 00/10 reftable: stop using `struct strbuf`Patrick Steinhardt, Oct 14, 2024
  21. 01/10 reftable: stop using `strbuf_addbuf()`Patrick Steinhardt, Oct 14, 2024
  22. Taylor BlauOct 14, 2024
  23. 02/10 reftable: stop using `strbuf_addf()`Patrick Steinhardt, Oct 14, 2024
  24. Taylor BlauOct 14, 2024
  25. Patrick SteinhardtOct 15, 2024
  26. Taylor BlauOct 15, 2024
  27. 03/10 reftable/basics: provide new `reftable_buf` interfacePatrick Steinhardt, Oct 14, 2024
  28. Taylor BlauOct 14, 2024
  29. Patrick SteinhardtOct 15, 2024
  30. Eric SunshineOct 15, 2024
  31. Taylor BlauOct 15, 2024
  32. Patrick SteinhardtOct 16, 2024
  33. Taylor BlauOct 16, 2024
  34. Patrick SteinhardtOct 17, 2024
  35. Taylor BlauOct 17, 2024
  36. 04/10 reftable: convert from `strbuf` to `reftable_buf`Patrick Steinhardt, Oct 14, 2024
  37. Taylor BlauOct 14, 2024
  38. 05/10 reftable/blocksource: adapt interface namePatrick Steinhardt, Oct 14, 2024
  39. 06/10 t/unit-tests: check for `reftable_buf` allocation errorsPatrick Steinhardt, Oct 14, 2024
  40. 07/10 reftable/stack: adapt `format_name()` to handle allocation failuresPatrick Steinhardt, Oct 14, 2024
  41. Taylor BlauOct 14, 2024
  42. 08/10 reftable/record: adapt `reftable_record_key()` to handle allocation failuresPatrick Steinhardt, Oct 14, 2024
  43. 09/10 reftable/stack: adapt `stack_filename()` to handle allocation failuresPatrick Steinhardt, Oct 14, 2024
  44. 10/10 reftable: handle trivial `reftable_buf` errorsPatrick Steinhardt, Oct 14, 2024
  45. Taylor BlauOct 14, 2024
  46. Patrick SteinhardtOct 15, 2024
  47. shejialuoOct 15, 2024
  48. Patrick SteinhardtOct 15, 2024
  49. shejialuoOct 15, 2024
  50. 00/10 reftable: stop using `struct strbuf`Patrick Steinhardt, Oct 17, 2024
  51. 01/10 reftable: stop using `strbuf_addbuf()`Patrick Steinhardt, Oct 17, 2024
  52. 02/10 reftable: stop using `strbuf_addf()`Patrick Steinhardt, Oct 17, 2024
  53. 03/10 reftable/basics: provide new `reftable_buf` interfacePatrick Steinhardt, Oct 17, 2024
  54. 04/10 reftable: convert from `strbuf` to `reftable_buf`Patrick Steinhardt, Oct 17, 2024
  55. 05/10 reftable/blocksource: adapt interface namePatrick Steinhardt, Oct 17, 2024
  56. 06/10 t/unit-tests: check for `reftable_buf` allocation errorsPatrick Steinhardt, Oct 17, 2024
  57. 07/10 reftable/stack: adapt `format_name()` to handle allocation failuresPatrick Steinhardt, Oct 17, 2024
  58. 08/10 reftable/record: adapt `reftable_record_key()` to handle allocation failuresPatrick Steinhardt, Oct 17, 2024
  59. 09/10 reftable/stack: adapt `stack_filename()` to handle allocation failuresPatrick Steinhardt, Oct 17, 2024
  60. 10/10 reftable: handle trivial `reftable_buf` errorsPatrick Steinhardt, Oct 17, 2024
  61. Taylor BlauOct 17, 2024
  62. karthik nayakOct 18, 2024
  63. Taylor BlauOct 18, 2024

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