From 3f2e2297b9c88a6ab5fc4bff02cf2a07ce057589 Mon Sep 17 00:00:00 2001 From: Jeff King Date: Fri, 1 Jul 2016 01:58:58 -0400 Subject: [PATCH 1/6] add an extra level of indirection to main() There are certain startup tasks that we expect every git process to do. In some cases this is just to improve the quality of the program (e.g., setting up gettext()). In others it is a requirement for using certain functions in libgit.a (e.g., system_path() expects that you have called git_extract_argv0_path()). Most commands are builtins and are covered by the git.c version of main(). However, there are still a few external commands that use their own main(). Each of these has to remember to include the correct startup sequence, and we are not always consistent. Rather than just fix the inconsistencies, let's make this harder to get wrong by providing a common main() that can run this standard startup. We basically have two options to do this: - the compat/mingw.h file already does something like this by adding a #define that replaces the definition of main with a wrapper that calls mingw_startup(). The upside is that the code in each program doesn't need to be changed at all; it's rewritten on the fly by the preprocessor. The downside is that it may make debugging of the startup sequence a bit more confusing, as the preprocessor is quietly inserting new code. - the builtin functions are all of the form cmd_foo(), and git.c's main() calls them. This is much more explicit, which may make things more obvious to somebody reading the code. It's also more flexible (because of course we have to figure out _which_ cmd_foo() to call). The downside is that each of the builtins must define cmd_foo(), instead of just main(). This patch chooses the latter option, preferring the more explicit approach, even though it is more invasive. We introduce a new file common-main.c, with the "real" main. It expects to call cmd_main() from whatever other objects it is linked against. We link common-main.o against anything that links against libgit.a, since we know that such programs will need to do this setup. Note that common-main.o can't actually go inside libgit.a, as the linker would not pick up its main() function automatically (it has no callers). The rest of the patch is just adjusting all of the various external programs (mostly in t/helper) to use cmd_main(). I've provided a global declaration for cmd_main(), which means that all of the programs also need to match its signature. In particular, many functions need to switch to "const char **" instead of "char **" for argv. This effect ripples out to a few other variables and functions, as well. This makes the patch even more invasive, but the end result is much better. We should be treating argv strings as const anyway, and now all programs conform to the same signature (which also matches the way builtins are defined). Signed-off-by: Jeff King Signed-off-by: Junio C Hamano --- Makefile | 17 +++++++++++++---- common-main.c | 12 ++++++++++++ credential-cache--daemon.c | 2 +- credential-cache.c | 2 +- credential-store.c | 2 +- daemon.c | 8 ++++---- fast-import.c | 4 ++-- git-compat-util.h | 2 ++ git.c | 3 +-- http-backend.c | 2 +- http-fetch.c | 2 +- http-push.c | 6 +++--- imap-send.c | 2 +- remote-curl.c | 2 +- remote-testsvn.c | 2 +- sh-i18n--envsubst.c | 2 +- shell.c | 2 +- show-index.c | 2 +- test-chmtime.c | 2 +- test-config.c | 2 +- test-ctype.c | 2 +- test-date.c | 8 ++++---- test-delta.c | 2 +- test-dump-cache-tree.c | 2 +- test-dump-split-index.c | 2 +- test-dump-untracked-cache.c | 2 +- test-fake-ssh.c | 2 +- test-genrandom.c | 2 +- test-hashmap.c | 2 +- test-index-version.c | 2 +- test-line-buffer.c | 2 +- test-match-trees.c | 2 +- test-mergesort.c | 2 +- test-mktemp.c | 2 +- test-parse-options.c | 2 +- test-path-utils.c | 4 ++-- test-prio-queue.c | 2 +- test-read-cache.c | 2 +- test-regex.c | 2 +- test-revision-walking.c | 2 +- test-run-command.c | 2 +- test-scrap-cache-tree.c | 2 +- test-sha1-array.c | 2 +- test-sha1.c | 2 +- test-sigchain.c | 2 +- test-string-list.c | 2 +- test-submodule-config.c | 6 +++--- test-subprocess.c | 2 +- test-svn-fe.c | 4 ++-- test-urlmatch-normalization.c | 2 +- test-wildmatch.c | 2 +- upload-pack.c | 6 +++--- 52 files changed, 91 insertions(+), 69 deletions(-) create mode 100644 common-main.c diff --git a/Makefile b/Makefile index e11e626d052..15f37d58e9e 100644 --- a/Makefile +++ b/Makefile @@ -943,7 +943,7 @@ BUILTIN_OBJS += builtin/verify-tag.o BUILTIN_OBJS += builtin/worktree.o BUILTIN_OBJS += builtin/write-tree.o -GITLIBS = $(LIB_FILE) $(XDIFF_LIB) +GITLIBS = common-main.o $(LIB_FILE) $(XDIFF_LIB) EXTLIBS = GIT_USER_AGENT = git/$(GIT_VERSION) @@ -1572,7 +1572,15 @@ TCLTK_PATH_SQ = $(subst ','\'',$(TCLTK_PATH)) DIFF_SQ = $(subst ','\'',$(DIFF)) PERLLIB_EXTRA_SQ = $(subst ','\'',$(PERLLIB_EXTRA)) -LIBS = $(GITLIBS) $(EXTLIBS) +# We must filter out any object files from $(GITLIBS), +# as it is typically used like: +# +# foo: foo.o $(GITLIBS) +# $(CC) $(filter %.o,$^) $(LIBS) +# +# where we use it as a dependency. Since we also pull object files +# from the dependency list, that would make each entry appear twice. +LIBS = $(filter-out %.o, $(GITLIBS)) $(EXTLIBS) BASIC_CFLAGS += -DSHA1_HEADER='$(SHA1_HEADER_SQ)' \ $(COMPAT_CFLAGS) @@ -1708,8 +1716,8 @@ git.sp git.s git.o: EXTRA_CPPFLAGS = \ '-DGIT_INFO_PATH="$(infodir_relative_SQ)"' git$X: git.o GIT-LDFLAGS $(BUILTIN_OBJS) $(GITLIBS) - $(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) git.o \ - $(BUILTIN_OBJS) $(LIBS) + $(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) \ + $(filter %.o,$^) $(LIBS) help.sp help.s help.o: common-cmds.h @@ -1902,6 +1910,7 @@ TEST_OBJS := $(patsubst test-%$X,test-%.o,$(TEST_PROGRAMS)) OBJECTS := $(LIB_OBJS) $(BUILTIN_OBJS) $(PROGRAM_OBJS) $(TEST_OBJS) \ $(XDIFF_OBJS) \ $(VCSSVN_OBJS) \ + common-main.o \ git.o ifndef NO_CURL OBJECTS += http.o http-walker.o remote-curl.o diff --git a/common-main.c b/common-main.c new file mode 100644 index 00000000000..2b96bbf436b --- /dev/null +++ b/common-main.c @@ -0,0 +1,12 @@ +#include "git-compat-util.h" + +int main(int argc, char **av) +{ + /* + * This const trickery is explained in + * 84d32bf7678259c08406571cd6ce4b7a6724dcba + */ + const char **argv = (const char **)av; + + return cmd_main(argc, argv); +} diff --git a/credential-cache--daemon.c b/credential-cache--daemon.c index 291c0fd5e93..a4bf2366ab4 100644 --- a/credential-cache--daemon.c +++ b/credential-cache--daemon.c @@ -257,7 +257,7 @@ static void init_socket_directory(const char *path) free(path_copy); } -int main(int argc, const char **argv) +int cmd_main(int argc, const char **argv) { const char *socket_path; int ignore_sighup = 0; diff --git a/credential-cache.c b/credential-cache.c index 86e21de49be..cc8a6ee1921 100644 --- a/credential-cache.c +++ b/credential-cache.c @@ -83,7 +83,7 @@ static void do_cache(const char *socket, const char *action, int timeout, strbuf_release(&buf); } -int main(int argc, const char **argv) +int cmd_main(int argc, const char **argv) { char *socket_path = NULL; int timeout = 900; diff --git a/credential-store.c b/credential-store.c index 57141679abd..55ca1b13343 100644 --- a/credential-store.c +++ b/credential-store.c @@ -142,7 +142,7 @@ static void lookup_credential(const struct string_list *fns, struct credential * return; /* Found credential */ } -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { const char * const usage[] = { "git credential-store [] ", diff --git a/daemon.c b/daemon.c index 8d45c336f5f..e6b86d21532 100644 --- a/daemon.c +++ b/daemon.c @@ -32,7 +32,7 @@ static const char daemon_usage[] = " [...]"; /* List of acceptable pathname prefixes */ -static char **ok_paths; +static const char **ok_paths; static int strict_paths; /* If this is set, git-daemon-export-ok is not required */ @@ -240,7 +240,7 @@ static const char *path_ok(const char *directory, struct hostinfo *hi) } if ( ok_paths && *ok_paths ) { - char **pp; + const char **pp; int pathlen = strlen(path); /* The validation is done on the paths after enter_repo @@ -1178,7 +1178,7 @@ static int serve(struct string_list *listen_addr, int listen_port, return service_loop(&socklist); } -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { int listen_port = 0; struct string_list listen_addr = STRING_LIST_INIT_NODUP; @@ -1193,7 +1193,7 @@ int main(int argc, char **argv) git_extract_argv0_path(argv[0]); for (i = 1; i < argc; i++) { - char *arg = argv[i]; + const char *arg = argv[i]; const char *v; if (skip_prefix(arg, "--listen=", &v)) { diff --git a/fast-import.c b/fast-import.c index 9fc7093406b..bd649268b20 100644 --- a/fast-import.c +++ b/fast-import.c @@ -300,7 +300,7 @@ static int failure; static FILE *pack_edges; static unsigned int show_stats = 1; static int global_argc; -static char **global_argv; +static const char **global_argv; /* Memory pools */ static size_t mem_pool_alloc = 2*1024*1024 - sizeof(struct mem_pool); @@ -3381,7 +3381,7 @@ static void parse_argv(void) read_marks(); } -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { unsigned int i; diff --git a/git-compat-util.h b/git-compat-util.h index 1f8b5f3b1f1..91e366d1dd5 100644 --- a/git-compat-util.h +++ b/git-compat-util.h @@ -1043,3 +1043,5 @@ struct tm *git_gmtime_r(const time_t *, struct tm *); #endif #endif + +extern int cmd_main(int, const char **); diff --git a/git.c b/git.c index 968a8a46458..e2444046f58 100644 --- a/git.c +++ b/git.c @@ -630,9 +630,8 @@ static void restore_sigpipe_to_default(void) signal(SIGPIPE, SIG_DFL); } -int main(int argc, char **av) +int cmd_main(int argc, const char **argv) { - const char **argv = (const char **) av; const char *cmd; int done_help = 0; diff --git a/http-backend.c b/http-backend.c index 8870a2681eb..3249652b3df 100644 --- a/http-backend.c +++ b/http-backend.c @@ -632,7 +632,7 @@ static struct service_cmd { {"POST", "/git-receive-pack$", service_rpc} }; -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { char *method = getenv("REQUEST_METHOD"); char *dir; diff --git a/http-fetch.c b/http-fetch.c index ba3ea106708..eb559eb83bc 100644 --- a/http-fetch.c +++ b/http-fetch.c @@ -6,7 +6,7 @@ static const char http_fetch_usage[] = "git http-fetch " "[-c] [-t] [-a] [-v] [--recover] [-w ref] [--stdin] commit-id url"; -int main(int argc, const char **argv) +int cmd_main(int argc, const char **argv) { struct walker *walker; int commits_on_stdin = 0; diff --git a/http-push.c b/http-push.c index bd60668707b..98228a42626 100644 --- a/http-push.c +++ b/http-push.c @@ -1692,12 +1692,12 @@ static void run_request_queue(void) #endif } -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { struct transfer_request *request; struct transfer_request *next_request; int nr_refspec = 0; - char **refspec = NULL; + const char **refspec = NULL; struct remote_lock *ref_lock = NULL; struct remote_lock *info_ref_lock = NULL; struct rev_info revs; @@ -1717,7 +1717,7 @@ int main(int argc, char **argv) argv++; for (i = 1; i < argc; i++, argv++) { - char *arg = *argv; + const char *arg = *argv; if (*arg == '-') { if (!strcmp(arg, "--all")) { diff --git a/imap-send.c b/imap-send.c index 938c6915858..890e1cbb64f 100644 --- a/imap-send.c +++ b/imap-send.c @@ -1494,7 +1494,7 @@ static int curl_append_msgs_to_imap(struct imap_server_conf *server, } #endif -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { struct strbuf all_msgs = STRBUF_INIT; int total; diff --git a/remote-curl.c b/remote-curl.c index 15e48e25fb9..6ebc2a0c11b 100644 --- a/remote-curl.c +++ b/remote-curl.c @@ -984,7 +984,7 @@ static void parse_push(struct strbuf *buf) free(specs); } -int main(int argc, const char **argv) +int cmd_main(int argc, const char **argv) { struct strbuf buf = STRBUF_INIT; int nongit; diff --git a/remote-testsvn.c b/remote-testsvn.c index f05ff452982..32631eb14a0 100644 --- a/remote-testsvn.c +++ b/remote-testsvn.c @@ -284,7 +284,7 @@ static int do_command(struct strbuf *line) return 0; } -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { struct strbuf buf = STRBUF_INIT, url_sb = STRBUF_INIT, private_ref_sb = STRBUF_INIT, marksfilename_sb = STRBUF_INIT, diff --git a/sh-i18n--envsubst.c b/sh-i18n--envsubst.c index 2842a22d7fd..e06b2c1311f 100644 --- a/sh-i18n--envsubst.c +++ b/sh-i18n--envsubst.c @@ -64,7 +64,7 @@ static void note_variables (const char *string); static void subst_from_stdin (void); int -main (int argc, char *argv[]) +cmd_main (int argc, const char *argv[]) { /* Default values for command line options. */ /* unsigned short int show_variables = 0; */ diff --git a/shell.c b/shell.c index c5439a63e96..3dd7fdcfe61 100644 --- a/shell.c +++ b/shell.c @@ -138,7 +138,7 @@ static struct commands { { NULL }, }; -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { char *prog; const char **user_argv; diff --git a/show-index.c b/show-index.c index acf8d5445ad..575f9c58945 100644 --- a/show-index.c +++ b/show-index.c @@ -4,7 +4,7 @@ static const char show_index_usage[] = "git show-index"; -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { int i; unsigned nr; diff --git a/test-chmtime.c b/test-chmtime.c index dfe8a83261b..e760256406f 100644 --- a/test-chmtime.c +++ b/test-chmtime.c @@ -56,7 +56,7 @@ static int timespec_arg(const char *arg, long int *set_time, int *set_eq) return 1; } -int main(int argc, char *argv[]) +int cmd_main(int argc, const char **argv) { static int verbose; diff --git a/test-config.c b/test-config.c index 6a775522105..d143cd72223 100644 --- a/test-config.c +++ b/test-config.c @@ -33,7 +33,7 @@ */ -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { int i, val; const char *v; diff --git a/test-ctype.c b/test-ctype.c index 707a821f03d..bb72c47df57 100644 --- a/test-ctype.c +++ b/test-ctype.c @@ -28,7 +28,7 @@ static int is_in(const char *s, int ch) #define LOWER "abcdefghijklmnopqrstuvwxyz" #define UPPER "ABCDEFGHIJKLMNOPQRSTUVWXYZ" -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { TEST_CLASS(isdigit, DIGIT); TEST_CLASS(isspace, " \n\r\t"); diff --git a/test-date.c b/test-date.c index 63f373557e7..0f3cfb1721b 100644 --- a/test-date.c +++ b/test-date.c @@ -5,7 +5,7 @@ static const char *usage_msg = "\n" " test-date parse [date]...\n" " test-date approxidate [date]...\n"; -static void show_dates(char **argv, struct timeval *now) +static void show_dates(const char **argv, struct timeval *now) { struct strbuf buf = STRBUF_INIT; @@ -17,7 +17,7 @@ static void show_dates(char **argv, struct timeval *now) strbuf_release(&buf); } -static void parse_dates(char **argv, struct timeval *now) +static void parse_dates(const char **argv, struct timeval *now) { struct strbuf result = STRBUF_INIT; @@ -36,7 +36,7 @@ static void parse_dates(char **argv, struct timeval *now) strbuf_release(&result); } -static void parse_approxidate(char **argv, struct timeval *now) +static void parse_approxidate(const char **argv, struct timeval *now) { for (; *argv; argv++) { time_t t; @@ -45,7 +45,7 @@ static void parse_approxidate(char **argv, struct timeval *now) } } -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { struct timeval now; const char *x; diff --git a/test-delta.c b/test-delta.c index 4595cd6433f..59937dc1be1 100644 --- a/test-delta.c +++ b/test-delta.c @@ -15,7 +15,7 @@ static const char usage_str[] = "test-delta (-d|-p) "; -int main(int argc, char *argv[]) +int cmd_main(int argc, const char **argv) { int fd; struct stat st; diff --git a/test-dump-cache-tree.c b/test-dump-cache-tree.c index bb53c0aa655..44f3290258a 100644 --- a/test-dump-cache-tree.c +++ b/test-dump-cache-tree.c @@ -54,7 +54,7 @@ static int dump_cache_tree(struct cache_tree *it, return errs; } -int main(int ac, char **av) +int cmd_main(int ac, const char **av) { struct index_state istate; struct cache_tree *another = cache_tree(); diff --git a/test-dump-split-index.c b/test-dump-split-index.c index 861d28c9b6c..d1689248b49 100644 --- a/test-dump-split-index.c +++ b/test-dump-split-index.c @@ -7,7 +7,7 @@ static void show_bit(size_t pos, void *data) printf(" %d", (int)pos); } -int main(int ac, char **av) +int cmd_main(int ac, const char **av) { struct split_index *si; int i; diff --git a/test-dump-untracked-cache.c b/test-dump-untracked-cache.c index 0a1c2852466..50112cc8586 100644 --- a/test-dump-untracked-cache.c +++ b/test-dump-untracked-cache.c @@ -40,7 +40,7 @@ static void dump(struct untracked_cache_dir *ucd, struct strbuf *base) strbuf_setlen(base, len); } -int main(int ac, char **av) +int cmd_main(int ac, const char **av) { struct untracked_cache *uc; struct strbuf base = STRBUF_INIT; diff --git a/test-fake-ssh.c b/test-fake-ssh.c index 980de216e10..12beee99ad2 100644 --- a/test-fake-ssh.c +++ b/test-fake-ssh.c @@ -2,7 +2,7 @@ #include "run-command.h" #include "strbuf.h" -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { const char *trash_directory = getenv("TRASH_DIRECTORY"); struct strbuf buf = STRBUF_INIT; diff --git a/test-genrandom.c b/test-genrandom.c index 54824d07542..8d11d22d986 100644 --- a/test-genrandom.c +++ b/test-genrandom.c @@ -6,7 +6,7 @@ #include "git-compat-util.h" -int main(int argc, char *argv[]) +int cmd_main(int argc, const char **argv) { unsigned long count, next = 0; unsigned char *c; diff --git a/test-hashmap.c b/test-hashmap.c index cc2891dd971..7aa9440e274 100644 --- a/test-hashmap.c +++ b/test-hashmap.c @@ -138,7 +138,7 @@ static void perf_hashmap(unsigned int method, unsigned int rounds) * * perfhashmap method rounds -> test hashmap.[ch] performance */ -int main(int argc, char *argv[]) +int cmd_main(int argc, const char **argv) { char line[1024]; struct hashmap map; diff --git a/test-index-version.c b/test-index-version.c index 05d4699c4a6..f569f6b7eff 100644 --- a/test-index-version.c +++ b/test-index-version.c @@ -1,6 +1,6 @@ #include "cache.h" -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { struct cache_header hdr; int version; diff --git a/test-line-buffer.c b/test-line-buffer.c index 1e58f0476f3..81575fe2ab9 100644 --- a/test-line-buffer.c +++ b/test-line-buffer.c @@ -50,7 +50,7 @@ static void handle_line(const char *line, struct line_buffer *stdin_buf) handle_command(line, arg + 1, stdin_buf); } -int main(int argc, char *argv[]) +int cmd_main(int argc, const char **argv) { struct line_buffer stdin_buf = LINE_BUFFER_INIT; struct line_buffer file_buf = LINE_BUFFER_INIT; diff --git a/test-match-trees.c b/test-match-trees.c index 4dad7095f10..afcdc143b51 100644 --- a/test-match-trees.c +++ b/test-match-trees.c @@ -1,7 +1,7 @@ #include "cache.h" #include "tree.h" -int main(int ac, char **av) +int cmd_main(int ac, const char **av) { unsigned char hash1[20], hash2[20], shifted[20]; struct tree *one, *two; diff --git a/test-mergesort.c b/test-mergesort.c index ea3b959e94f..335cf6b6264 100644 --- a/test-mergesort.c +++ b/test-mergesort.c @@ -22,7 +22,7 @@ static int compare_strings(const void *a, const void *b) return strcmp(x->text, y->text); } -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { struct line *line, *p = NULL, *lines = NULL; struct strbuf sb = STRBUF_INIT; diff --git a/test-mktemp.c b/test-mktemp.c index c8c54213a39..89d9b2f7bee 100644 --- a/test-mktemp.c +++ b/test-mktemp.c @@ -3,7 +3,7 @@ */ #include "git-compat-util.h" -int main(int argc, char *argv[]) +int cmd_main(int argc, const char **argv) { if (argc != 2) usage("Expected 1 parameter defining the temporary file template"); diff --git a/test-parse-options.c b/test-parse-options.c index 2c8c8f18edb..7adae43b87a 100644 --- a/test-parse-options.c +++ b/test-parse-options.c @@ -30,7 +30,7 @@ static int number_callback(const struct option *opt, const char *arg, int unset) return 0; } -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { const char *prefix = "prefix/"; const char *usage[] = { diff --git a/test-path-utils.c b/test-path-utils.c index ba805b374c5..1ebe0f750c6 100644 --- a/test-path-utils.c +++ b/test-path-utils.c @@ -156,7 +156,7 @@ static struct test_data dirname_data[] = { { NULL, NULL } }; -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { if (argc == 3 && !strcmp(argv[1], "normalize_path_copy")) { char *buf = xmallocz(strlen(argv[2])); @@ -213,7 +213,7 @@ int main(int argc, char **argv) } if (argc >= 4 && !strcmp(argv[1], "prefix_path")) { - char *prefix = argv[2]; + const char *prefix = argv[2]; int prefix_len = strlen(prefix); int nongit_ok; setup_git_directory_gently(&nongit_ok); diff --git a/test-prio-queue.c b/test-prio-queue.c index 7be72f0086b..ae58fff3597 100644 --- a/test-prio-queue.c +++ b/test-prio-queue.c @@ -16,7 +16,7 @@ static void show(int *v) free(v); } -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { struct prio_queue pq = { intcmp }; diff --git a/test-read-cache.c b/test-read-cache.c index b25bcf139b2..2a7990efc31 100644 --- a/test-read-cache.c +++ b/test-read-cache.c @@ -1,6 +1,6 @@ #include "cache.h" -int main (int argc, char **argv) +int cmd_main(int argc, const char **argv) { int i, cnt = 1; if (argc == 2) diff --git a/test-regex.c b/test-regex.c index 0dc598ecdc2..37b7f06e552 100644 --- a/test-regex.c +++ b/test-regex.c @@ -1,6 +1,6 @@ #include "git-compat-util.h" -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { char *pat = "[^={} \t]+"; char *str = "={}\nfred"; diff --git a/test-revision-walking.c b/test-revision-walking.c index 3d0313354b3..b8e6fe1d007 100644 --- a/test-revision-walking.c +++ b/test-revision-walking.c @@ -45,7 +45,7 @@ static int run_revision_walk(void) return got_revision; } -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { if (argc < 2) return 1; diff --git a/test-run-command.c b/test-run-command.c index 30a64a98dc8..c71ea4f759b 100644 --- a/test-run-command.c +++ b/test-run-command.c @@ -49,7 +49,7 @@ static int task_finished(int result, return 1; } -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { struct child_process proc = CHILD_PROCESS_INIT; int jobs; diff --git a/test-scrap-cache-tree.c b/test-scrap-cache-tree.c index 6efee31a486..5b2fd099089 100644 --- a/test-scrap-cache-tree.c +++ b/test-scrap-cache-tree.c @@ -5,7 +5,7 @@ static struct lock_file index_lock; -int main(int ac, char **av) +int cmd_main(int ac, const char **av) { hold_locked_index(&index_lock, 1); if (read_cache() < 0) diff --git a/test-sha1-array.c b/test-sha1-array.c index 60ea1d5f14e..09f77909716 100644 --- a/test-sha1-array.c +++ b/test-sha1-array.c @@ -6,7 +6,7 @@ static void print_sha1(const unsigned char sha1[20], void *data) puts(sha1_to_hex(sha1)); } -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { struct sha1_array array = SHA1_ARRAY_INIT; struct strbuf line = STRBUF_INIT; diff --git a/test-sha1.c b/test-sha1.c index e57eae10bf7..a1c13f54eca 100644 --- a/test-sha1.c +++ b/test-sha1.c @@ -1,6 +1,6 @@ #include "cache.h" -int main(int ac, char **av) +int cmd_main(int ac, const char **av) { git_SHA_CTX ctx; unsigned char sha1[20]; diff --git a/test-sigchain.c b/test-sigchain.c index e499fce60ff..b71edbd4429 100644 --- a/test-sigchain.c +++ b/test-sigchain.c @@ -13,7 +13,7 @@ X(two) X(three) #undef X -int main(int argc, char **argv) { +int cmd_main(int argc, const char **argv) { sigchain_push(SIGTERM, one); sigchain_push(SIGTERM, two); sigchain_push(SIGTERM, three); diff --git a/test-string-list.c b/test-string-list.c index 14bdf9d2153..4a68967bd12 100644 --- a/test-string-list.c +++ b/test-string-list.c @@ -41,7 +41,7 @@ static int prefix_cb(struct string_list_item *item, void *cb_data) return starts_with(item->string, prefix); } -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { if (argc == 5 && !strcmp(argv[1], "split")) { struct string_list list = STRING_LIST_INIT_DUP; diff --git a/test-submodule-config.c b/test-submodule-config.c index dab8c277681..2cffded116f 100644 --- a/test-submodule-config.c +++ b/test-submodule-config.c @@ -2,7 +2,7 @@ #include "submodule-config.h" #include "submodule.h" -static void die_usage(int argc, char **argv, const char *msg) +static void die_usage(int argc, const char **argv, const char *msg) { fprintf(stderr, "%s\n", msg); fprintf(stderr, "Usage: %s [ ] ...\n", argv[0]); @@ -14,9 +14,9 @@ static int git_test_config(const char *var, const char *value, void *cb) return parse_submodule_config_option(var, value); } -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { - char **arg = argv; + const char **arg = argv; int my_argc = argc; int output_url = 0; int lookup_name = 0; diff --git a/test-subprocess.c b/test-subprocess.c index 56881a03247..30c5765bfc3 100644 --- a/test-subprocess.c +++ b/test-subprocess.c @@ -1,7 +1,7 @@ #include "cache.h" #include "run-command.h" -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { struct child_process cp = CHILD_PROCESS_INIT; int nogit = 0; diff --git a/test-svn-fe.c b/test-svn-fe.c index 120ec96b0db..7667c0803f1 100644 --- a/test-svn-fe.c +++ b/test-svn-fe.c @@ -11,7 +11,7 @@ static const char test_svnfe_usage[] = "test-svn-fe ( | [-d] )"; -static int apply_delta(int argc, char *argv[]) +static int apply_delta(int argc, const char **argv) { struct line_buffer preimage = LINE_BUFFER_INIT; struct line_buffer delta = LINE_BUFFER_INIT; @@ -35,7 +35,7 @@ static int apply_delta(int argc, char *argv[]) return 0; } -int main(int argc, char *argv[]) +int cmd_main(int argc, const char **argv) { if (argc == 2) { if (svndump_init(argv[1])) diff --git a/test-urlmatch-normalization.c b/test-urlmatch-normalization.c index 090bf219a7d..49b6e836be2 100644 --- a/test-urlmatch-normalization.c +++ b/test-urlmatch-normalization.c @@ -1,7 +1,7 @@ #include "git-compat-util.h" #include "urlmatch.h" -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { const char usage[] = "test-urlmatch-normalization [-p | -l] | "; char *url1, *url2; diff --git a/test-wildmatch.c b/test-wildmatch.c index 578b164fe60..52be876fed3 100644 --- a/test-wildmatch.c +++ b/test-wildmatch.c @@ -1,6 +1,6 @@ #include "cache.h" -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { int i; for (i = 2; i < argc; i++) { diff --git a/upload-pack.c b/upload-pack.c index dc802a07c22..909ce68cfb8 100644 --- a/upload-pack.c +++ b/upload-pack.c @@ -817,9 +817,9 @@ static int upload_pack_config(const char *var, const char *value, void *unused) return parse_hide_refs_config(var, value, "uploadpack"); } -int main(int argc, char **argv) +int cmd_main(int argc, const char **argv) { - char *dir; + const char *dir; int i; int strict = 0; @@ -830,7 +830,7 @@ int main(int argc, char **argv) check_replace_refs = 0; for (i = 1; i < argc; i++) { - char *arg = argv[i]; + const char *arg = argv[i]; if (arg[0] != '-') break; From 650c449250d7279dcbfe2f7cc23624955d53d339 Mon Sep 17 00:00:00 2001 From: Jeff King Date: Fri, 1 Jul 2016 02:04:04 -0400 Subject: [PATCH 2/6] common-main: call git_extract_argv0_path() Every program which links against libgit.a must call this function, or risk hitting an assert() in system_path() that checks whether we have configured argv0_path (though only when RUNTIME_PREFIX is defined, so essentially only on Windows). Looking at the diff, you can see that putting it into the common main() saves us having to do it individually in each of the external commands. But what you can't see are the cases where we _should_ have been doing so, but weren't (e.g., git-credential-store, and all of the t/helper test programs). This has been an accident-waiting-to-happen for a long time, but wasn't triggered until recently because it involves one of those programs actually calling system_path(). That happened with git-credential-store in v2.8.0 with ae5f677 (lazily load core.sharedrepository, 2016-03-11). The program: - takes a lock file, which... - opens a tempfile, which... - calls adjust_shared_perm to fix permissions, which... - lazy-loads the config (as of ae5f677), which... - calls system_path() to find the location of /etc/gitconfig On systems with RUNTIME_PREFIX, this means credential-store reliably hits that assert() and cannot be used. We never noticed in the test suite, because we set GIT_CONFIG_NOSYSTEM there, which skips the system_path() lookup entirely. But if we were to tweak git_config() to find /etc/gitconfig even when we aren't going to open it, then the test suite shows multiple failures (for credential-store, and for some other test helpers). I didn't include that tweak here because it's way too specific to this particular call to be worth carrying around what is essentially dead code. The implementation is fairly straightforward, with one exception: there is exactly one caller (git.c) that actually cares about the result of the function, and not the side-effect of setting up argv0_path. We can accommodate that by simply replacing the value of argv[0] in the array we hand down to cmd_main(). Signed-off-by: Jeff King Signed-off-by: Junio C Hamano --- common-main.c | 3 +++ daemon.c | 3 --- fast-import.c | 3 --- git.c | 2 +- http-backend.c | 1 - http-fetch.c | 2 -- http-push.c | 2 -- imap-send.c | 2 -- remote-curl.c | 1 - remote-testsvn.c | 1 - shell.c | 2 -- upload-pack.c | 1 - 12 files changed, 4 insertions(+), 19 deletions(-) diff --git a/common-main.c b/common-main.c index 2b96bbf436b..57c912a78e3 100644 --- a/common-main.c +++ b/common-main.c @@ -1,4 +1,5 @@ #include "git-compat-util.h" +#include "exec_cmd.h" int main(int argc, char **av) { @@ -8,5 +9,7 @@ int main(int argc, char **av) */ const char **argv = (const char **)av; + argv[0] = git_extract_argv0_path(argv[0]); + return cmd_main(argc, argv); } diff --git a/daemon.c b/daemon.c index e6b86d21532..f2bc7f43f61 100644 --- a/daemon.c +++ b/daemon.c @@ -1,6 +1,5 @@ #include "cache.h" #include "pkt-line.h" -#include "exec_cmd.h" #include "run-command.h" #include "strbuf.h" #include "string-list.h" @@ -1190,8 +1189,6 @@ int cmd_main(int argc, const char **argv) git_setup_gettext(); - git_extract_argv0_path(argv[0]); - for (i = 1; i < argc; i++) { const char *arg = argv[i]; const char *v; diff --git a/fast-import.c b/fast-import.c index bd649268b20..72d209c19a7 100644 --- a/fast-import.c +++ b/fast-import.c @@ -164,7 +164,6 @@ Format of STDIN stream: #include "refs.h" #include "csum-file.h" #include "quote.h" -#include "exec_cmd.h" #include "dir.h" #define PACK_ID_BITS 16 @@ -3385,8 +3384,6 @@ int cmd_main(int argc, const char **argv) { unsigned int i; - git_extract_argv0_path(argv[0]); - git_setup_gettext(); if (argc == 2 && !strcmp(argv[1], "-h")) diff --git a/git.c b/git.c index e2444046f58..3b4e12d7c68 100644 --- a/git.c +++ b/git.c @@ -635,7 +635,7 @@ int cmd_main(int argc, const char **argv) const char *cmd; int done_help = 0; - cmd = git_extract_argv0_path(argv[0]); + cmd = argv[0]; if (!cmd) cmd = "git-help"; diff --git a/http-backend.c b/http-backend.c index 3249652b3df..2926d1f9e7b 100644 --- a/http-backend.c +++ b/http-backend.c @@ -642,7 +642,6 @@ int cmd_main(int argc, const char **argv) git_setup_gettext(); - git_extract_argv0_path(argv[0]); set_die_routine(die_webcgi); set_die_is_recursing_routine(die_webcgi_recursing); diff --git a/http-fetch.c b/http-fetch.c index eb559eb83bc..244cd0db5d8 100644 --- a/http-fetch.c +++ b/http-fetch.c @@ -24,8 +24,6 @@ int cmd_main(int argc, const char **argv) git_setup_gettext(); - git_extract_argv0_path(argv[0]); - while (arg < argc && argv[arg][0] == '-') { if (argv[arg][1] == 't') { get_tree = 1; diff --git a/http-push.c b/http-push.c index 98228a42626..acfcd1f1ad8 100644 --- a/http-push.c +++ b/http-push.c @@ -1711,8 +1711,6 @@ int cmd_main(int argc, const char **argv) git_setup_gettext(); - git_extract_argv0_path(argv[0]); - repo = xcalloc(1, sizeof(*repo)); argv++; diff --git a/imap-send.c b/imap-send.c index 890e1cbb64f..125b2183a70 100644 --- a/imap-send.c +++ b/imap-send.c @@ -1500,8 +1500,6 @@ int cmd_main(int argc, const char **argv) int total; int nongit_ok; - git_extract_argv0_path(argv[0]); - git_setup_gettext(); setup_git_directory_gently(&nongit_ok); diff --git a/remote-curl.c b/remote-curl.c index 6ebc2a0c11b..cdbaed1479d 100644 --- a/remote-curl.c +++ b/remote-curl.c @@ -991,7 +991,6 @@ int cmd_main(int argc, const char **argv) git_setup_gettext(); - git_extract_argv0_path(argv[0]); setup_git_directory_gently(&nongit); if (argc < 2) { error("remote-curl: usage: git remote-curl []"); diff --git a/remote-testsvn.c b/remote-testsvn.c index 32631eb14a0..f87bf851ba7 100644 --- a/remote-testsvn.c +++ b/remote-testsvn.c @@ -292,7 +292,6 @@ int cmd_main(int argc, const char **argv) static struct remote *remote; const char *url_in; - git_extract_argv0_path(argv[0]); setup_git_directory(); if (argc < 2 || argc > 3) { usage("git-remote-svn []"); diff --git a/shell.c b/shell.c index 3dd7fdcfe61..ca00807d7ec 100644 --- a/shell.c +++ b/shell.c @@ -147,8 +147,6 @@ int cmd_main(int argc, const char **argv) git_setup_gettext(); - git_extract_argv0_path(argv[0]); - /* * Always open file descriptors 0/1/2 to avoid clobbering files * in die(). It also avoids messing up when the pipes are dup'ed diff --git a/upload-pack.c b/upload-pack.c index 909ce68cfb8..8f2dd7d49ab 100644 --- a/upload-pack.c +++ b/upload-pack.c @@ -826,7 +826,6 @@ int cmd_main(int argc, const char **argv) git_setup_gettext(); packet_trace_identity("upload-pack"); - git_extract_argv0_path(argv[0]); check_replace_refs = 0; for (i = 1; i < argc; i++) { From 57f5d52a942e8bbfa82e2741faf050de0d6b3eb3 Mon Sep 17 00:00:00 2001 From: Jeff King Date: Fri, 1 Jul 2016 02:06:02 -0400 Subject: [PATCH 3/6] common-main: call sanitize_stdfds() This is setup that should be done in every program for safety, but we never got around to adding it everywhere (so builtins benefited from the call in git.c, but any external commands did not). Putting it in the common main() gives us this safety everywhere. Note that the case in daemon.c is a little funny. We wait until we know whether we want to daemonize, and then either: - call daemonize(), which will close stdio and reopen it to /dev/null under the hood - sanitize_stdfds(), to fix up any odd cases But that is way too late; the point of sanitizing is to give us reliable descriptors on 0/1/2, and we will already have executed code, possibly called die(), etc. The sanitizing should be the very first thing that happens. With this patch, git-daemon will sanitize first, and can remove the call in the non-daemonize case. It does mean that daemonize() may just end up closing the descriptors we opened, but that's not a big deal (it's not wrong to do so, nor is it really less optimal than the case where our parent process redirected us from /dev/null ahead of time). Signed-off-by: Jeff King Signed-off-by: Junio C Hamano --- common-main.c | 9 ++++++++- daemon.c | 3 +-- git.c | 7 ------- shell.c | 7 ------- 4 files changed, 9 insertions(+), 17 deletions(-) diff --git a/common-main.c b/common-main.c index 57c912a78e3..353c6ea175b 100644 --- a/common-main.c +++ b/common-main.c @@ -1,4 +1,4 @@ -#include "git-compat-util.h" +#include "cache.h" #include "exec_cmd.h" int main(int argc, char **av) @@ -9,6 +9,13 @@ int main(int argc, char **av) */ const char **argv = (const char **)av; + /* + * Always open file descriptors 0/1/2 to avoid clobbering files + * in die(). It also avoids messing up when the pipes are dup'ed + * onto stdin/stdout/stderr in the child processes we spawn. + */ + sanitize_stdfds(); + argv[0] = git_extract_argv0_path(argv[0]); return cmd_main(argc, argv); diff --git a/daemon.c b/daemon.c index f2bc7f43f61..981338414ed 100644 --- a/daemon.c +++ b/daemon.c @@ -1364,8 +1364,7 @@ int cmd_main(int argc, const char **argv) if (detach) { if (daemonize()) die("--detach not supported on this platform"); - } else - sanitize_stdfds(); + } if (pid_file) write_file(pid_file, "%"PRIuMAX, (uintmax_t) getpid()); diff --git a/git.c b/git.c index 3b4e12d7c68..b65083ca977 100644 --- a/git.c +++ b/git.c @@ -639,13 +639,6 @@ int cmd_main(int argc, const char **argv) if (!cmd) cmd = "git-help"; - /* - * Always open file descriptors 0/1/2 to avoid clobbering files - * in die(). It also avoids messing up when the pipes are dup'ed - * onto stdin/stdout/stderr in the child processes we spawn. - */ - sanitize_stdfds(); - restore_sigpipe_to_default(); git_setup_gettext(); diff --git a/shell.c b/shell.c index ca00807d7ec..5e70acb9a6c 100644 --- a/shell.c +++ b/shell.c @@ -147,13 +147,6 @@ int cmd_main(int argc, const char **argv) git_setup_gettext(); - /* - * Always open file descriptors 0/1/2 to avoid clobbering files - * in die(). It also avoids messing up when the pipes are dup'ed - * onto stdin/stdout/stderr in the child processes we spawn. - */ - sanitize_stdfds(); - /* * Special hack to pretend to be a CVS server */ From 12e0437f237ad72df3a2f3f8b067cf8097d792f1 Mon Sep 17 00:00:00 2001 From: Jeff King Date: Fri, 1 Jul 2016 02:06:35 -0400 Subject: [PATCH 4/6] common-main: call restore_sigpipe_to_default() This is another safety/sanity setup that should be in force everywhere, but which we only applied in git.c. This did catch most cases, since even external commands are typically run via "git ..." (and the restoration applies to sub-processes, too). But there were cases we missed, such as somebody calling git-upload-pack directly via ssh, or scripts which use dashed external commands directly. Signed-off-by: Jeff King Signed-off-by: Junio C Hamano --- common-main.c | 23 +++++++++++++++++++++++ git.c | 23 ----------------------- 2 files changed, 23 insertions(+), 23 deletions(-) diff --git a/common-main.c b/common-main.c index 353c6ea175b..20e55ef7d76 100644 --- a/common-main.c +++ b/common-main.c @@ -1,6 +1,27 @@ #include "cache.h" #include "exec_cmd.h" +/* + * Many parts of Git have subprograms communicate via pipe, expect the + * upstream of a pipe to die with SIGPIPE when the downstream of a + * pipe does not need to read all that is written. Some third-party + * programs that ignore or block SIGPIPE for their own reason forget + * to restore SIGPIPE handling to the default before spawning Git and + * break this carefully orchestrated machinery. + * + * Restore the way SIGPIPE is handled to default, which is what we + * expect. + */ +static void restore_sigpipe_to_default(void) +{ + sigset_t unblock; + + sigemptyset(&unblock); + sigaddset(&unblock, SIGPIPE); + sigprocmask(SIG_UNBLOCK, &unblock, NULL); + signal(SIGPIPE, SIG_DFL); +} + int main(int argc, char **av) { /* @@ -18,5 +39,7 @@ int main(int argc, char **av) argv[0] = git_extract_argv0_path(argv[0]); + restore_sigpipe_to_default(); + return cmd_main(argc, argv); } diff --git a/git.c b/git.c index b65083ca977..ccb24fd26a6 100644 --- a/git.c +++ b/git.c @@ -609,27 +609,6 @@ static int run_argv(int *argcp, const char ***argv) return done_alias; } -/* - * Many parts of Git have subprograms communicate via pipe, expect the - * upstream of a pipe to die with SIGPIPE when the downstream of a - * pipe does not need to read all that is written. Some third-party - * programs that ignore or block SIGPIPE for their own reason forget - * to restore SIGPIPE handling to the default before spawning Git and - * break this carefully orchestrated machinery. - * - * Restore the way SIGPIPE is handled to default, which is what we - * expect. - */ -static void restore_sigpipe_to_default(void) -{ - sigset_t unblock; - - sigemptyset(&unblock); - sigaddset(&unblock, SIGPIPE); - sigprocmask(SIG_UNBLOCK, &unblock, NULL); - signal(SIGPIPE, SIG_DFL); -} - int cmd_main(int argc, const char **argv) { const char *cmd; @@ -639,8 +618,6 @@ int cmd_main(int argc, const char **argv) if (!cmd) cmd = "git-help"; - restore_sigpipe_to_default(); - git_setup_gettext(); trace_command_performance(argv); From 5ce5f5fa5ad3de3c36fdd00df2d5c045ad1d7f04 Mon Sep 17 00:00:00 2001 From: Jeff King Date: Fri, 1 Jul 2016 02:07:01 -0400 Subject: [PATCH 5/6] common-main: call git_setup_gettext() This should be part of every program, as otherwise users do not get translated error messages. However, some external commands forgot to do so (e.g., git-credential-store). This fixes them, and eliminates the repeated code in programs that did remember to use it. Signed-off-by: Jeff King Signed-off-by: Junio C Hamano --- common-main.c | 2 ++ daemon.c | 2 -- fast-import.c | 2 -- git.c | 2 -- http-backend.c | 2 -- http-fetch.c | 2 -- http-push.c | 2 -- imap-send.c | 2 -- remote-curl.c | 2 -- shell.c | 2 -- show-index.c | 2 -- upload-pack.c | 2 -- 12 files changed, 2 insertions(+), 22 deletions(-) diff --git a/common-main.c b/common-main.c index 20e55ef7d76..3be5ad18e1d 100644 --- a/common-main.c +++ b/common-main.c @@ -37,6 +37,8 @@ int main(int argc, char **av) */ sanitize_stdfds(); + git_setup_gettext(); + argv[0] = git_extract_argv0_path(argv[0]); restore_sigpipe_to_default(); diff --git a/daemon.c b/daemon.c index 981338414ed..569997c98fc 100644 --- a/daemon.c +++ b/daemon.c @@ -1187,8 +1187,6 @@ int cmd_main(int argc, const char **argv) struct credentials *cred = NULL; int i; - git_setup_gettext(); - for (i = 1; i < argc; i++) { const char *arg = argv[i]; const char *v; diff --git a/fast-import.c b/fast-import.c index 72d209c19a7..c4342725661 100644 --- a/fast-import.c +++ b/fast-import.c @@ -3384,8 +3384,6 @@ int cmd_main(int argc, const char **argv) { unsigned int i; - git_setup_gettext(); - if (argc == 2 && !strcmp(argv[1], "-h")) usage(fast_import_usage); diff --git a/git.c b/git.c index ccb24fd26a6..0f1937fd0c2 100644 --- a/git.c +++ b/git.c @@ -618,8 +618,6 @@ int cmd_main(int argc, const char **argv) if (!cmd) cmd = "git-help"; - git_setup_gettext(); - trace_command_performance(argv); /* diff --git a/http-backend.c b/http-backend.c index 2926d1f9e7b..5a17bcac87e 100644 --- a/http-backend.c +++ b/http-backend.c @@ -640,8 +640,6 @@ int cmd_main(int argc, const char **argv) char *cmd_arg = NULL; int i; - git_setup_gettext(); - set_die_routine(die_webcgi); set_die_is_recursing_routine(die_webcgi_recursing); diff --git a/http-fetch.c b/http-fetch.c index 244cd0db5d8..3b556d66196 100644 --- a/http-fetch.c +++ b/http-fetch.c @@ -22,8 +22,6 @@ int cmd_main(int argc, const char **argv) int get_verbosely = 0; int get_recover = 0; - git_setup_gettext(); - while (arg < argc && argv[arg][0] == '-') { if (argv[arg][1] == 't') { get_tree = 1; diff --git a/http-push.c b/http-push.c index acfcd1f1ad8..366794d7074 100644 --- a/http-push.c +++ b/http-push.c @@ -1709,8 +1709,6 @@ int cmd_main(int argc, const char **argv) int new_refs; struct ref *ref, *local_refs; - git_setup_gettext(); - repo = xcalloc(1, sizeof(*repo)); argv++; diff --git a/imap-send.c b/imap-send.c index 125b2183a70..9cbe27fcd44 100644 --- a/imap-send.c +++ b/imap-send.c @@ -1500,8 +1500,6 @@ int cmd_main(int argc, const char **argv) int total; int nongit_ok; - git_setup_gettext(); - setup_git_directory_gently(&nongit_ok); git_imap_config(); diff --git a/remote-curl.c b/remote-curl.c index cdbaed1479d..46a55d28f58 100644 --- a/remote-curl.c +++ b/remote-curl.c @@ -989,8 +989,6 @@ int cmd_main(int argc, const char **argv) struct strbuf buf = STRBUF_INIT; int nongit; - git_setup_gettext(); - setup_git_directory_gently(&nongit); if (argc < 2) { error("remote-curl: usage: git remote-curl []"); diff --git a/shell.c b/shell.c index 5e70acb9a6c..464ee1a201f 100644 --- a/shell.c +++ b/shell.c @@ -145,8 +145,6 @@ int cmd_main(int argc, const char **argv) struct commands *cmd; int count; - git_setup_gettext(); - /* * Special hack to pretend to be a CVS server */ diff --git a/show-index.c b/show-index.c index 575f9c58945..1ead41e2113 100644 --- a/show-index.c +++ b/show-index.c @@ -11,8 +11,6 @@ int cmd_main(int argc, const char **argv) unsigned int version; static unsigned int top_index[256]; - git_setup_gettext(); - if (argc != 1) usage(show_index_usage); if (fread(top_index, 2 * 4, 1, stdin) != 1) diff --git a/upload-pack.c b/upload-pack.c index 8f2dd7d49ab..f0a0fdaf71f 100644 --- a/upload-pack.c +++ b/upload-pack.c @@ -823,8 +823,6 @@ int cmd_main(int argc, const char **argv) int i; int strict = 0; - git_setup_gettext(); - packet_trace_identity("upload-pack"); check_replace_refs = 0; From 08aade7080ef7955eb356c6590187be3b55dcbcd Mon Sep 17 00:00:00 2001 From: Johannes Schindelin Date: Fri, 1 Jul 2016 15:01:28 +0200 Subject: [PATCH 6/6] mingw: declare main()'s argv as const In 84d32bf (sparse: Fix mingw_main() argument number/type errors, 2013-04-27), we addressed problems identified by the 'sparse' tool where argv was declared inconsistently. The way we addressed it was by casting from the non-const version to the const-version. This patch is long overdue, fixing compat/mingw.h's declaration to make the "argv" parameter const. This also allows us to lose the "const" trickery introduced earlier to common-main.c:main(). Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- common-main.c | 8 +------- compat/mingw.h | 2 +- 2 files changed, 2 insertions(+), 8 deletions(-) diff --git a/common-main.c b/common-main.c index 3be5ad18e1d..44a29e8b13c 100644 --- a/common-main.c +++ b/common-main.c @@ -22,14 +22,8 @@ static void restore_sigpipe_to_default(void) signal(SIGPIPE, SIG_DFL); } -int main(int argc, char **av) +int main(int argc, const char **argv) { - /* - * This const trickery is explained in - * 84d32bf7678259c08406571cd6ce4b7a6724dcba - */ - const char **argv = (const char **)av; - /* * Always open file descriptors 0/1/2 to avoid clobbering files * in die(). It also avoids messing up when the pipes are dup'ed diff --git a/compat/mingw.h b/compat/mingw.h index 69bb43dc35d..1ac9086a827 100644 --- a/compat/mingw.h +++ b/compat/mingw.h @@ -535,7 +535,7 @@ extern CRITICAL_SECTION pinfo_cs; void mingw_startup(); #define main(c,v) dummy_decl_mingw_main(); \ static int mingw_main(c,v); \ -int main(int argc, char **argv) \ +int main(int argc, const char **argv) \ { \ mingw_startup(); \ return mingw_main(__argc, (void *)__argv); \