diff options
author | Junio C Hamano <gitster@pobox.com> | 2007-09-10 11:14:50 +0400 |
---|---|---|
committer | Junio C Hamano <gitster@pobox.com> | 2007-09-10 11:14:50 +0400 |
commit | 6972ab7ae10a205bbc05b98408a36403915a9c39 (patch) | |
tree | 755ab51db764a7d35e9546eb30a5d4440291b014 | |
parent | 9784c5c53e0765bc9a0c973ab10aaf0734d535c3 (diff) | |
parent | 20fbfd869fe8faae0ce4573b60b540024db7385d (diff) |
Merge branch 'rs/archive'
* rs/archive:
archive - leakfix for format_subst()
Define NO_MEMMEM on Darwin as it lacks the function
archive: rename attribute specfile to export-subst
archive: specfile syntax change: "$Format:%PLCHLDR$" instead of just "%PLCHLDR" (take 2)
add memmem()
Remove unused function convert_sha1_file()
archive: specfile support (--pretty=format: in archive files)
Export format_commit_message()
-rw-r--r-- | Documentation/gitattributes.txt | 17 | ||||
-rw-r--r-- | Makefile | 12 | ||||
-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 | 98 | ||||
-rw-r--r-- | cache.h | 1 | ||||
-rw-r--r-- | commit.c | 9 | ||||
-rw-r--r-- | commit.h | 1 | ||||
-rw-r--r-- | compat/memmem.c | 29 | ||||
-rw-r--r-- | convert.c | 15 | ||||
-rw-r--r-- | git-compat-util.h | 6 | ||||
-rwxr-xr-x | t/t5000-tar-tree.sh | 19 |
13 files changed, 197 insertions, 23 deletions
diff --git a/Documentation/gitattributes.txt b/Documentation/gitattributes.txt index 46f9d591aa..d0e951ee6f 100644 --- a/Documentation/gitattributes.txt +++ b/Documentation/gitattributes.txt @@ -421,6 +421,23 @@ frotz unspecified ---------------------------------------------------------------- +Creating an archive +~~~~~~~~~~~~~~~~~~~ + +`export-subst` +^^^^^^^^^^^^^^ + +If the attribute `export-subst` 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], +except that they need to be wrapped like this: `$Format:PLACEHOLDERS$` +in the file. E.g. the string `$Format:%H$` will be replaced by the +commit hash. + + GIT --- Part of the gitlink:git[7] suite @@ -28,6 +28,8 @@ all:: # # Define NO_STRCASESTR if you don't have strcasestr. # +# Define NO_MEMMEM if you don't have memmem. +# # Define NO_STRLCPY if you don't have strlcpy. # # Define NO_STRTOUMAX if you don't have strtoumax in the C library. @@ -396,12 +398,14 @@ ifeq ($(uname_S),Darwin) NEEDS_LIBICONV = YesPlease OLD_ICONV = UnfortunatelyYes NO_STRLCPY = YesPlease + NO_MEMMEM = YesPlease endif ifeq ($(uname_S),SunOS) NEEDS_SOCKET = YesPlease NEEDS_NSL = YesPlease SHELL_PATH = /bin/bash NO_STRCASESTR = YesPlease + NO_MEMMEM = YesPlease NO_HSTRERROR = YesPlease ifeq ($(uname_R),5.8) NEEDS_LIBICONV = YesPlease @@ -424,6 +428,7 @@ ifeq ($(uname_O),Cygwin) NO_D_TYPE_IN_DIRENT = YesPlease NO_D_INO_IN_DIRENT = YesPlease NO_STRCASESTR = YesPlease + NO_MEMMEM = YesPlease NO_SYMLINK_HEAD = YesPlease NEEDS_LIBICONV = YesPlease NO_FAST_WORKING_DIRECTORY = UnfortunatelyYes @@ -442,6 +447,7 @@ ifeq ($(uname_S),FreeBSD) endif ifeq ($(uname_S),OpenBSD) NO_STRCASESTR = YesPlease + NO_MEMMEM = YesPlease NEEDS_LIBICONV = YesPlease BASIC_CFLAGS += -I/usr/local/include BASIC_LDFLAGS += -L/usr/local/lib @@ -456,6 +462,7 @@ ifeq ($(uname_S),NetBSD) endif ifeq ($(uname_S),AIX) NO_STRCASESTR=YesPlease + NO_MEMMEM = YesPlease NO_STRLCPY = YesPlease NEEDS_LIBICONV=YesPlease endif @@ -467,6 +474,7 @@ ifeq ($(uname_S),IRIX64) NO_IPV6=YesPlease NO_SETENV=YesPlease NO_STRCASESTR=YesPlease + NO_MEMMEM = YesPlease NO_STRLCPY = YesPlease NO_SOCKADDR_STORAGE=YesPlease SHELL_PATH=/usr/gnu/bin/bash @@ -661,6 +669,10 @@ ifdef NO_HSTRERROR COMPAT_CFLAGS += -DNO_HSTRERROR COMPAT_OBJS += compat/hstrerror.o endif +ifdef NO_MEMMEM + COMPAT_CFLAGS += -DNO_MEMMEM + COMPAT_OBJS += compat/memmem.o +endif ifeq ($(TCLTK_PATH),) NO_TCLTK=NoThanks diff --git a/archive-tar.c b/archive-tar.c index 66fe3e375b..c0d95dab0d 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 444e1623db..f63dff3834 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 187491bc17..a90c65ce54 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 +81,100 @@ static int run_remote_archiver(const char *remote, int argc, return !!rv; } +static void *format_subst(const struct commit *commit, const char *format, + unsigned long *sizep) +{ + unsigned long len = *sizep, result_len = 0; + const char *a = format; + char *result = NULL; + + for (;;) { + const char *b, *c; + char *fmt, *formatted = NULL; + unsigned long a_len, fmt_len, formatted_len, allocated = 0; + + b = memmem(a, len, "$Format:", 8); + if (!b || a + len < b + 9) + break; + c = memchr(b + 8, '$', len - 8); + if (!c) + break; + + a_len = b - a; + fmt_len = c - b - 8; + fmt = xmalloc(fmt_len + 1); + memcpy(fmt, b + 8, fmt_len); + fmt[fmt_len] = '\0'; + + formatted_len = format_commit_message(commit, fmt, &formatted, + &allocated); + free(fmt); + result = xrealloc(result, result_len + a_len + formatted_len); + memcpy(result + result_len, a, a_len); + memcpy(result + result_len + a_len, formatted, formatted_len); + result_len += a_len + formatted_len; + len -= c + 1 - a; + a = c + 1; + } + + if (result && len) { + result = xrealloc(result, result_len + len); + memcpy(result + result_len, a, len); + result_len += len; + } + + *sizep = result_len; + + return result; +} + +static void *convert_to_archive(const char *path, + const void *src, unsigned long *sizep, + const struct commit *commit) +{ + static struct git_attr *attr_export_subst; + struct git_attr_check check[1]; + + if (!commit) + return NULL; + + if (!attr_export_subst) + attr_export_subst = git_attr("export-subst", 12); + + check[0].attr = attr_export_subst; + if (git_checkattr(path, ARRAY_SIZE(check), check)) + return NULL; + if (!ATTR_TRUE(check[0].value)) + return NULL; + + return format_subst(commit, src, sizep); +} + +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 +204,7 @@ 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 +237,7 @@ 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; } @@ -592,7 +592,6 @@ extern void trace_argv_printf(const char **argv, int count, const char *format, /* convert.c */ extern char *convert_to_git(const char *path, const char *src, unsigned long *sizep); extern char *convert_to_working_tree(const char *path, const char *src, unsigned long *sizep); -extern void *convert_sha1_file(const char *path, const unsigned char *sha1, unsigned int mode, enum object_type *type, unsigned long *size); /* diff.c */ extern int diff_auto_refresh_index; @@ -787,8 +787,8 @@ static void fill_person(struct interp *table, const char *msg, int len) interp_set_entry(table, 6, show_date(date, tz, DATE_ISO8601)); } -static long format_commit_message(const struct commit *commit, - const char *msg, char **buf_p, unsigned long *space_p) +long format_commit_message(const struct commit *commit, const void *format, + char **buf_p, unsigned long *space_p) { struct interp table[] = { { "%H" }, /* commit hash */ @@ -843,6 +843,7 @@ static long format_commit_message(const struct commit *commit, char parents[1024]; int i; enum { HEADER, SUBJECT, BODY } state; + const char *msg = commit->buffer; if (ILEFT_RIGHT + 1 != ARRAY_SIZE(table)) die("invalid interp table!"); @@ -924,7 +925,7 @@ static long format_commit_message(const struct commit *commit, char *buf = *buf_p; unsigned long space = *space_p; - space = interpolate(buf, space, user_format, + space = interpolate(buf, space, format, table, ARRAY_SIZE(table)); if (!space) break; @@ -1165,7 +1166,7 @@ unsigned long pretty_print_commit(enum cmit_fmt fmt, char *buf; if (fmt == CMIT_FMT_USERFORMAT) - return format_commit_message(commit, msg, buf_p, space_p); + return format_commit_message(commit, user_format, buf_p, space_p); encoding = (git_log_output_encoding ? git_log_output_encoding @@ -61,6 +61,7 @@ enum cmit_fmt { }; extern enum cmit_fmt get_commit_format(const char *arg); +extern long format_commit_message(const struct commit *commit, const void *template, char **buf_p, unsigned long *space_p); extern unsigned long pretty_print_commit(enum cmit_fmt fmt, const struct commit *, unsigned long len, char **buf_p, unsigned long *space_p, int abbrev, const char *subject, const char *after_subject, enum date_mode dmode); /** Removes the first commit from a list sorted by date, and adds all diff --git a/compat/memmem.c b/compat/memmem.c new file mode 100644 index 0000000000..cd0d877364 --- /dev/null +++ b/compat/memmem.c @@ -0,0 +1,29 @@ +#include "../git-compat-util.h" + +void *gitmemmem(const void *haystack, size_t haystack_len, + const void *needle, size_t needle_len) +{ + const char *begin = haystack; + const char *last_possible = begin + haystack_len - needle_len; + + /* + * The first occurrence of the empty string is deemed to occur at + * the beginning of the string. + */ + if (needle_len == 0) + return (void *)begin; + + /* + * Sanity check, otherwise the loop might search through the whole + * memory. + */ + if (haystack_len < needle_len) + return NULL; + + for (; begin <= last_possible; begin++) { + if (!memcmp(begin, needle, needle_len)) + return (void *)begin; + } + + return NULL; +} @@ -687,18 +687,3 @@ char *convert_to_working_tree(const char *path, const char *src, unsigned long * return buf; } - -void *convert_sha1_file(const char *path, const unsigned char *sha1, - unsigned int mode, enum object_type *type, - unsigned long *size) -{ - void *buffer = read_sha1_file(sha1, type, size); - if (S_ISREG(mode) && buffer) { - void *converted = convert_to_working_tree(path, buffer, size); - if (converted) { - free(buffer); - buffer = converted; - } - } - return buffer; -} diff --git a/git-compat-util.h b/git-compat-util.h index ca0a597a28..1bfbdeb94f 100644 --- a/git-compat-util.h +++ b/git-compat-util.h @@ -172,6 +172,12 @@ extern uintmax_t gitstrtoumax(const char *, char **, int); extern const char *githstrerror(int herror); #endif +#ifdef NO_MEMMEM +#define memmem gitmemmem +void *gitmemmem(const void *haystack, size_t haystacklen, + const void *needle, size_t needlelen); +#endif + extern void release_pack_memory(size_t, int); static inline char* xstrdup(const char *str) diff --git a/t/t5000-tar-tree.sh b/t/t5000-tar-tree.sh index 1a4c53a031..42e28ab758 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} +SUBSTFORMAT=%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 "A\$Format:%s\$O" "$SUBSTFORMAT" >a/substfile && 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 substfile' \ + 'echo substfile export-subst >a/.gitattributes && + git archive HEAD >f.tar && + rm a/.gitattributes' + +test_expect_success \ + 'extract substfile' \ + '(mkdir f && cd f && $TAR xf -) <f.tar' + +test_expect_success \ + 'validate substfile contents' \ + 'git log --max-count=1 "--pretty=format:A${SUBSTFORMAT}O" HEAD \ + >f/a/substfile.expected && + diff f/a/substfile.expected f/a/substfile' + +test_expect_success \ 'git archive --format=zip' \ 'git archive --format=zip HEAD >d.zip' |