[PATCH v2 06/14] pkt-line: accept additional options in read_packetized_to_strbuf()

From: Johannes Schindelin via GitGitGadget <gitgitgadget@gmail.com>
Date: Feb 1, 2021, 19:45 UTC
Message-ID: <6a389a3533512acedfa1769c64296c1e19b16221.1612208747.git.gitgitgadget@gmail.com>
In-Reply-To: <pull.766.v2.git.1612208747.gitgitgadget@gmail.com>

From: Johannes Schindelin <johannes.schindelin@gmx.de>

The `read_packetized_to_strbuf()` function reads packets into a strbuf until a flush packet has been received. So far, it has only one caller: `apply_multi_file_filter()` in `convert.c`. This caller really only needs the `PACKET_READ_GENTLE_ON_EOF` option to be passed to `packet_read()` (which makes sense in the scenario where packets should be read until a flush packet is received).

We are about to introduce a caller that wants to pass other options through to `packet_read()`, so let's extend the function signature accordingly.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
 convert.c  | 2 +-
 pkt-line.c | 4 ++--
 pkt-line.h | 6 +++++-
 3 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/convert.c b/convert.c
index 3f396a9b288..175c5cd51d5 100644
--- a/convert.c
+++ b/convert.c
@@ -903,7 +903,7 @@ static int apply_multi_file_filter(const char *path, const char *src, size_t len
 		if (err)
 			goto done;
 
-		err = read_packetized_to_strbuf(process->out, &nbuf) < 0;
+		err = read_packetized_to_strbuf(process->out, &nbuf, 0) < 0;
 		if (err)
 			goto done;
 
diff --git a/pkt-line.c b/pkt-line.c
index 528493bca21..f090fc56eef 100644
--- a/pkt-line.c
+++ b/pkt-line.c
@@ -461,7 +461,7 @@ char *packet_read_line_buf(char **src, size_t *src_len, int *dst_len)
 	return packet_read_line_generic(-1, src, src_len, dst_len);
 }
 
-ssize_t read_packetized_to_strbuf(int fd_in, struct strbuf *sb_out)
+ssize_t read_packetized_to_strbuf(int fd_in, struct strbuf *sb_out, int options)
 {
 	int packet_len;
 
@@ -477,7 +477,7 @@ ssize_t read_packetized_to_strbuf(int fd_in, struct strbuf *sb_out)
 			 * that there is already room for the extra byte.
 			 */
 			sb_out->buf + sb_out->len, LARGE_PACKET_DATA_MAX+1,
-			PACKET_READ_GENTLE_ON_EOF);
+			options | PACKET_READ_GENTLE_ON_EOF);
 		if (packet_len <= 0)
 			break;
 		sb_out->len += packet_len;
diff --git a/pkt-line.h b/pkt-line.h
index 7f31c892165..150319a6f00 100644
--- a/pkt-line.h
+++ b/pkt-line.h
@@ -145,8 +145,12 @@ char *packet_read_line_buf(char **src_buf, size_t *src_len, int *size);
 
 /*
  * Reads a stream of variable sized packets until a flush packet is detected.
+ *
+ * The options are augmented by PACKET_READ_GENTLE_ON_EOF and passed to
+ * packet_read.
  */
-ssize_t read_packetized_to_strbuf(int fd_in, struct strbuf *sb_out);
+ssize_t read_packetized_to_strbuf(int fd_in, struct strbuf *sb_out,
+				  int options);
 
 /*
  * Receive multiplexed output stream over git native protocol.

-- 
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