[PATCH] git-archive: ignore prefix when checking file attribute
Ulrik Sverdrup noticed that git-archive doesn't correctly apply the attribute export-subst when the option --prefix is given, too.
When it checked if a file has the attribute turned on, git-archive would try to look up the full path -- including the prefix -- in .gitattributes. That's wrong, as the prefix doesn't need to have any relation to any existing directories, tracked or not.
This patch makes git-archive ignore the prefix when looking up if value of the attribute export-subst for a file.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
---
Ulrik, does this patch fix the problem for you? It applies to v1.5.4.4 and
v1.5.5 equally.
archive-tar.c | 6 ++++--
archive-zip.c | 6 ++++--
t/t5000-tar-tree.sh | 15 ++++++++++++++-
3 files changed, 22 insertions(+), 5 deletions(-)
diff --git a/archive-tar.c b/archive-tar.c
index 30aa2e2..4add802 100644
--- a/archive-tar.c
+++ b/archive-tar.c
@@ -17,6 +17,7 @@ static time_t archive_time;
static int tar_umask = 002;
static int verbose;
static const struct commit *commit;
+static size_t base_len;
/* writes out the whole block, but only if it is full */
static void write_if_needed(void)
@@ -251,8 +252,8 @@ static int write_tar_entry(const unsigned char *sha1,
buffer = NULL;
size = 0;
} else {
- buffer = sha1_file_to_archive(path.buf, sha1, mode, &type,
- &size, commit);
+ buffer = sha1_file_to_archive(path.buf + base_len, sha1, mode,
+ &type, &size, commit);
if (!buffer)
die("cannot read %s", sha1_to_hex(sha1));
}
@@ -272,6 +273,7 @@ int write_tar_archive(struct archiver_args *args)
archive_time = args->time;
verbose = args->verbose;
commit = args->commit;
+ base_len = args->base ? strlen(args->base) : 0;
if (args->commit_sha1)
write_global_extended_header(args->commit_sha1);
diff --git a/archive-zip.c b/archive-zip.c
index 74e30f6..18c0f87 100644
--- a/archive-zip.c
+++ b/archive-zip.c
@@ -13,6 +13,7 @@ static int verbose;
static int zip_date;
static int zip_time;
static const struct commit *commit;
+static size_t base_len;
static unsigned char *zip_dir;
static unsigned int zip_dir_size;
@@ -197,8 +198,8 @@ static int write_zip_entry(const unsigned char *sha1,
if (S_ISREG(mode) && zlib_compression_level != 0)
method = 8;
result = 0;
- buffer = sha1_file_to_archive(path, sha1, mode, &type, &size,
- commit);
+ buffer = sha1_file_to_archive(path + base_len, sha1, mode,
+ &type, &size, commit);
if (!buffer)
die("cannot read %s", sha1_to_hex(sha1));
crc = crc32(crc, buffer, size);
@@ -321,6 +322,7 @@ int write_zip_archive(struct archiver_args *args)
zip_dir_size = ZIP_DIRECTORY_MIN_SIZE;
verbose = args->verbose;
commit = args->commit;
+ base_len = args->base ? strlen(args->base) : 0;
if (args->base && plen > 0 && args->base[plen - 1] == '/') {
char *base = xstrdup(args->base);
diff --git a/t/t5000-tar-tree.sh b/t/t5000-tar-tree.sh
index dca2067..fa62b6a 100755
--- a/t/t5000-tar-tree.sh
+++ b/t/t5000-tar-tree.sh
@@ -109,9 +109,10 @@ test_expect_success \
'diff -r a c/prefix/a'
test_expect_success \
- 'create an archive with a substfiles' \
+ 'create archives with substfiles' \
'echo "substfile?" export-subst >a/.gitattributes &&
git archive HEAD >f.tar &&
+ git archive --prefix=prefix/ HEAD >g.tar &&
rm a/.gitattributes'
test_expect_success \
@@ -127,6 +128,18 @@ test_expect_success \
'
test_expect_success \
+ 'extract substfiles from archive with prefix' \
+ '(mkdir g && cd g && $TAR xf -) <g.tar'
+
+test_expect_success \
+ 'validate substfile contents from archive with prefix' \
+ 'git log --max-count=1 "--pretty=format:A${SUBSTFORMAT}O" HEAD \
+ >g/prefix/a/substfile1.expected &&
+ diff g/prefix/a/substfile1.expected g/prefix/a/substfile1 &&
+ diff a/substfile2 g/prefix/a/substfile2
+'
+
+test_expect_success \
'git archive --format=zip' \
'git archive --format=zip HEAD >d.zip'
