diff options
| -rw-r--r-- | Documentation/gitattributes.txt | 14 | ||||
| -rw-r--r-- | archive-tar.c | 5 | ||||
| -rw-r--r-- | archive-zip.c | 5 | ||||
| -rw-r--r-- | archive.h | 3 | ||||
| -rw-r--r-- | builtin-archive.c | 55 | ||||
| -rwxr-xr-x | t/t5000-tar-tree.sh | 19 |
6 files changed, 98 insertions, 3 deletions
diff --git a/Documentation/gitattributes.txt b/Documentation/gitattributes.txt index 46f9d59..47a621b 100644 --- a/Documentation/gitattributes.txt +++ b/Documentation/gitattributes.txt @@ -421,6 +421,20 @@ frotz unspecified ---------------------------------------------------------------- +Creating an archive +~~~~~~~~~~~~~~~~~~~ + +`specfile` +^^^^^^^^^^ + +If the attribute `specfile` is set for a file then git will expand +several placeholders when adding this file to an archive. The +expansion depends on the availability of a commit ID, i.e. if +gitlink:git-archive[1] has been given a tree instead of a commit or a +tag then no replacement will be done. The placeholders are the same +as those for the option `--pretty=format:` of gitlink:git-log[1]. + + GIT --- Part of the gitlink:git[7] suite diff --git a/archive-tar.c b/archive-tar.c index 66fe3e3..c0d95da 100644 --- a/archive-tar.c +++ b/archive-tar.c @@ -17,6 +17,7 @@ static unsigned long offset; static time_t archive_time; static int tar_umask = 002; static int verbose; +static const struct commit *commit; /* writes out the whole block, but only if it is full */ static void write_if_needed(void) @@ -285,7 +286,8 @@ static int write_tar_entry(const unsigned char *sha1, buffer = NULL; size = 0; } else { - buffer = convert_sha1_file(path.buf, sha1, mode, &type, &size); + buffer = sha1_file_to_archive(path.buf, sha1, mode, &type, + &size, commit); if (!buffer) die("cannot read %s", sha1_to_hex(sha1)); } @@ -304,6 +306,7 @@ int write_tar_archive(struct archiver_args *args) archive_time = args->time; verbose = args->verbose; + commit = args->commit; if (args->commit_sha1) write_global_extended_header(args->commit_sha1); diff --git a/archive-zip.c b/archive-zip.c index 444e162..f63dff3 100644 --- a/archive-zip.c +++ b/archive-zip.c @@ -12,6 +12,7 @@ static int verbose; static int zip_date; static int zip_time; +static const struct commit *commit; static unsigned char *zip_dir; static unsigned int zip_dir_size; @@ -195,7 +196,8 @@ static int write_zip_entry(const unsigned char *sha1, if (S_ISREG(mode) && zlib_compression_level != 0) method = 8; result = 0; - buffer = convert_sha1_file(path, sha1, mode, &type, &size); + buffer = sha1_file_to_archive(path, sha1, mode, &type, &size, + commit); if (!buffer) die("cannot read %s", sha1_to_hex(sha1)); crc = crc32(crc, buffer, size); @@ -316,6 +318,7 @@ int write_zip_archive(struct archiver_args *args) zip_dir = xmalloc(ZIP_DIRECTORY_MIN_SIZE); zip_dir_size = ZIP_DIRECTORY_MIN_SIZE; verbose = args->verbose; + commit = args->commit; if (args->base && plen > 0 && args->base[plen - 1] == '/') { char *base = xstrdup(args->base); @@ -8,6 +8,7 @@ struct archiver_args { const char *base; struct tree *tree; const unsigned char *commit_sha1; + const struct commit *commit; time_t time; const char **pathspec; unsigned int verbose : 1; @@ -42,4 +43,6 @@ extern int write_tar_archive(struct archiver_args *); extern int write_zip_archive(struct archiver_args *); extern void *parse_extra_zip_args(int argc, const char **argv); +extern void *sha1_file_to_archive(const char *path, const unsigned char *sha1, unsigned int mode, enum object_type *type, unsigned long *size, const struct commit *commit); + #endif /* ARCHIVE_H */ diff --git a/builtin-archive.c b/builtin-archive.c index 187491b..faccce3 100644 --- a/builtin-archive.c +++ b/builtin-archive.c @@ -10,6 +10,7 @@ #include "exec_cmd.h" #include "pkt-line.h" #include "sideband.h" +#include "attr.h" static const char archive_usage[] = \ "git-archive --format=<fmt> [--prefix=<prefix>/] [--verbose] [<extra>] <tree-ish> [path...]"; @@ -80,6 +81,57 @@ static int run_remote_archiver(const char *remote, int argc, return !!rv; } +static void *convert_to_archive(const char *path, + const void *src, unsigned long *sizep, + const struct commit *commit) +{ + static struct git_attr *attr_specfile; + struct git_attr_check check[1]; + char *interpolated = NULL; + unsigned long allocated = 0; + + if (!commit) + return NULL; + + if (!attr_specfile) + attr_specfile = git_attr("specfile", 8); + + check[0].attr = attr_specfile; + if (git_checkattr(path, ARRAY_SIZE(check), check)) + return NULL; + if (!ATTR_TRUE(check[0].value)) + return NULL; + + *sizep = format_commit_message(commit, src, &interpolated, &allocated); + + return interpolated; +} + +void *sha1_file_to_archive(const char *path, const unsigned char *sha1, + unsigned int mode, enum object_type *type, + unsigned long *size, + const struct commit *commit) +{ + void *buffer, *converted; + + buffer = read_sha1_file(sha1, type, size); + if (buffer && S_ISREG(mode)) { + converted = convert_to_working_tree(path, buffer, size); + if (converted) { + free(buffer); + buffer = converted; + } + + converted = convert_to_archive(path, buffer, size, commit); + if (converted) { + free(buffer); + buffer = converted; + } + } + + return buffer; +} + static int init_archiver(const char *name, struct archiver *ar) { int rv = -1, i; @@ -109,7 +161,7 @@ void parse_treeish_arg(const char **argv, struct archiver_args *ar_args, const unsigned char *commit_sha1; time_t archive_time; struct tree *tree; - struct commit *commit; + const struct commit *commit; unsigned char sha1[20]; if (get_sha1(name, sha1)) @@ -142,6 +194,7 @@ void parse_treeish_arg(const char **argv, struct archiver_args *ar_args, } ar_args->tree = tree; ar_args->commit_sha1 = commit_sha1; + ar_args->commit = commit; ar_args->time = archive_time; } diff --git a/t/t5000-tar-tree.sh b/t/t5000-tar-tree.sh index 1a4c53a..3d5d01b 100755 --- a/t/t5000-tar-tree.sh +++ b/t/t5000-tar-tree.sh @@ -28,12 +28,15 @@ commit id embedding: TAR=${TAR:-tar} UNZIP=${UNZIP:-unzip} +SPECFILEFORMAT=%H%n + test_expect_success \ 'populate workdir' \ 'mkdir a b c && echo simple textfile >a/a && mkdir a/bin && cp /bin/sh a/bin && + printf "%s" "$SPECFILEFORMAT" >a/specfile && ln -s a a/l1 && (p=long_path_to_a_file && cd a && for depth in 1 2 3 4 5; do mkdir $p && cd $p; done && @@ -105,6 +108,22 @@ test_expect_success \ 'diff -r a c/prefix/a' test_expect_success \ + 'create an archive with a specfile' \ + 'echo specfile specfile >a/.gitattributes && + git archive HEAD >f.tar && + rm a/.gitattributes' + +test_expect_success \ + 'extract specfile' \ + '(mkdir f && cd f && $TAR xf -) <f.tar' + +test_expect_success \ + 'validate specfile contents' \ + 'git log --max-count=1 "--pretty=format:$SPECFILEFORMAT" HEAD \ + >f/a/specfile.expected && + diff f/a/specfile.expected f/a/specfile' + +test_expect_success \ 'git archive --format=zip' \ 'git archive --format=zip HEAD >d.zip' |