diff options
| author | Junio C Hamano <gitster@pobox.com> | 2025-01-28 13:02:22 -0800 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2025-01-28 13:02:22 -0800 |
| commit | f0a371a39d8b9945b2e0a414a32aa861614e5352 (patch) | |
| tree | 5ee935ae11355384d47bc2da81d6a19bf2ae15cb | |
| parent | 5f8f7081f7761acdf83d0a4c6819fe3d724f01d7 (diff) | |
| parent | f66d1423f528403a33e8984f765801deb1b9cb97 (diff) | |
| download | git-f0a371a39d8b9945b2e0a414a32aa861614e5352.tar.gz | |
Merge branch 'jc/show-usage-help'
The help text from "git $cmd -h" appear on the standard output for
some $cmd and the standard error for others. The built-in commands
have been fixed to show them on the standard output consistently.
* jc/show-usage-help:
builtin: send usage() help text to standard output
oddballs: send usage() help text to standard output
builtins: send usage_with_options() help text to standard output
usage: add show_usage_if_asked()
parse-options: add show_usage_with_options_if_asked()
t0012: optionally check that "-h" output goes to stdout
41 files changed, 121 insertions, 64 deletions
diff --git a/builtin/am.c b/builtin/am.c index e94d08e04b..390b463144 100644 --- a/builtin/am.c +++ b/builtin/am.c @@ -2427,8 +2427,7 @@ int cmd_am(int argc, OPT_END() }; - if (argc == 2 && !strcmp(argv[1], "-h")) - usage_with_options(usage, options); + show_usage_with_options_if_asked(argc, argv, usage, options); git_config(git_default_config, NULL); diff --git a/builtin/branch.c b/builtin/branch.c index 6e7b0cfddb..7c8b4b65b6 100644 --- a/builtin/branch.c +++ b/builtin/branch.c @@ -784,8 +784,8 @@ int cmd_branch(int argc, filter.kind = FILTER_REFS_BRANCHES; filter.abbrev = -1; - if (argc == 2 && !strcmp(argv[1], "-h")) - usage_with_options(builtin_branch_usage, options); + show_usage_with_options_if_asked(argc, argv, + builtin_branch_usage, options); /* * Try to set sort keys from config. If config does not set any, diff --git a/builtin/check-ref-format.c b/builtin/check-ref-format.c index cef1ffe3ce..5d80afeec0 100644 --- a/builtin/check-ref-format.c +++ b/builtin/check-ref-format.c @@ -64,8 +64,8 @@ int cmd_check_ref_format(int argc, BUG_ON_NON_EMPTY_PREFIX(prefix); - if (argc == 2 && !strcmp(argv[1], "-h")) - usage(builtin_check_ref_format_usage); + show_usage_if_asked(argc, argv, + builtin_check_ref_format_usage); if (argc == 3 && !strcmp(argv[1], "--branch")) return check_ref_format_branch(argv[2]); diff --git a/builtin/checkout--worker.c b/builtin/checkout--worker.c index b81002a1df..da9345a44b 100644 --- a/builtin/checkout--worker.c +++ b/builtin/checkout--worker.c @@ -128,9 +128,9 @@ int cmd_checkout__worker(int argc, OPT_END() }; - if (argc == 2 && !strcmp(argv[1], "-h")) - usage_with_options(checkout_worker_usage, - checkout_worker_options); + show_usage_with_options_if_asked(argc, argv, + checkout_worker_usage, + checkout_worker_options); git_config(git_default_config, NULL); argc = parse_options(argc, argv, prefix, checkout_worker_options, diff --git a/builtin/checkout-index.c b/builtin/checkout-index.c index a81501098d..e30086c7d4 100644 --- a/builtin/checkout-index.c +++ b/builtin/checkout-index.c @@ -250,9 +250,9 @@ int cmd_checkout_index(int argc, OPT_END() }; - if (argc == 2 && !strcmp(argv[1], "-h")) - usage_with_options(builtin_checkout_index_usage, - builtin_checkout_index_options); + show_usage_with_options_if_asked(argc, argv, + builtin_checkout_index_usage, + builtin_checkout_index_options); git_config(git_default_config, NULL); prefix_length = prefix ? strlen(prefix) : 0; diff --git a/builtin/commit-tree.c b/builtin/commit-tree.c index 2ca1a57ebb..38457600a4 100644 --- a/builtin/commit-tree.c +++ b/builtin/commit-tree.c @@ -119,8 +119,8 @@ int cmd_commit_tree(int argc, git_config(git_default_config, NULL); - if (argc < 2 || !strcmp(argv[1], "-h")) - usage_with_options(commit_tree_usage, options); + show_usage_with_options_if_asked(argc, argv, + commit_tree_usage, options); argc = parse_options(argc, argv, prefix, options, commit_tree_usage, 0); diff --git a/builtin/commit.c b/builtin/commit.c index ef5e622c07..c84062bfc1 100644 --- a/builtin/commit.c +++ b/builtin/commit.c @@ -1559,8 +1559,8 @@ struct repository *repo UNUSED) OPT_END(), }; - if (argc == 2 && !strcmp(argv[1], "-h")) - usage_with_options(builtin_status_usage, builtin_status_options); + show_usage_with_options_if_asked(argc, argv, + builtin_status_usage, builtin_status_options); prepare_repo_settings(the_repository); the_repository->settings.command_requires_full_index = 0; @@ -1736,8 +1736,8 @@ int cmd_commit(int argc, struct strbuf err = STRBUF_INIT; int ret = 0; - if (argc == 2 && !strcmp(argv[1], "-h")) - usage_with_options(builtin_commit_usage, builtin_commit_options); + show_usage_with_options_if_asked(argc, argv, + builtin_commit_usage, builtin_commit_options); prepare_repo_settings(the_repository); the_repository->settings.command_requires_full_index = 0; diff --git a/builtin/credential.c b/builtin/credential.c index 614b195b75..2e11b15dde 100644 --- a/builtin/credential.c +++ b/builtin/credential.c @@ -18,7 +18,8 @@ int cmd_credential(int argc, git_config(git_default_config, NULL); - if (argc != 2 || !strcmp(argv[1], "-h")) + show_usage_if_asked(argc, argv, usage_msg); + if (argc != 2) usage(usage_msg); op = argv[1]; diff --git a/builtin/diff-files.c b/builtin/diff-files.c index 604b04bb2c..99b1749723 100644 --- a/builtin/diff-files.c +++ b/builtin/diff-files.c @@ -29,8 +29,7 @@ int cmd_diff_files(int argc, int result; unsigned options = 0; - if (argc == 2 && !strcmp(argv[1], "-h")) - usage(diff_files_usage); + show_usage_if_asked(argc, argv, diff_files_usage); git_config(git_diff_basic_config, NULL); /* no "diff" UI options */ diff --git a/builtin/diff-index.c b/builtin/diff-index.c index ebc824602e..81c0bc8ed7 100644 --- a/builtin/diff-index.c +++ b/builtin/diff-index.c @@ -26,8 +26,7 @@ int cmd_diff_index(int argc, int i; int result; - if (argc == 2 && !strcmp(argv[1], "-h")) - usage(diff_cache_usage); + show_usage_if_asked(argc, argv, diff_cache_usage); git_config(git_diff_basic_config, NULL); /* no "diff" UI options */ diff --git a/builtin/diff-tree.c b/builtin/diff-tree.c index 40804e7b48..e31cc797fe 100644 --- a/builtin/diff-tree.c +++ b/builtin/diff-tree.c @@ -122,8 +122,7 @@ int cmd_diff_tree(int argc, int read_stdin = 0; int merge_base = 0; - if (argc == 2 && !strcmp(argv[1], "-h")) - usage(diff_tree_usage); + show_usage_if_asked(argc, argv, diff_tree_usage); git_config(git_diff_basic_config, NULL); /* no "diff" UI options */ diff --git a/builtin/fast-import.c b/builtin/fast-import.c index 0f86392761..2da46fecdc 100644 --- a/builtin/fast-import.c +++ b/builtin/fast-import.c @@ -3565,8 +3565,7 @@ int cmd_fast_import(int argc, { unsigned int i; - if (argc == 2 && !strcmp(argv[1], "-h")) - usage(fast_import_usage); + show_usage_if_asked(argc, argv, fast_import_usage); reset_pack_idx_option(&pack_idx_opts); git_pack_config(); diff --git a/builtin/fetch-pack.c b/builtin/fetch-pack.c index bed2816c2d..d07eec9e55 100644 --- a/builtin/fetch-pack.c +++ b/builtin/fetch-pack.c @@ -75,6 +75,8 @@ int cmd_fetch_pack(int argc, list_objects_filter_init(&args.filter_options); args.uploadpack = "git-upload-pack"; + show_usage_if_asked(argc, argv, fetch_pack_usage); + for (i = 1; i < argc && *argv[i] == '-'; i++) { const char *arg = argv[i]; diff --git a/builtin/fsmonitor--daemon.c b/builtin/fsmonitor--daemon.c index 029dc64d6c..0820e524f1 100644 --- a/builtin/fsmonitor--daemon.c +++ b/builtin/fsmonitor--daemon.c @@ -1598,8 +1598,8 @@ int cmd_fsmonitor__daemon(int argc, const char **argv, const char *prefix UNUSED OPT_END() }; - if (argc == 2 && !strcmp(argv[1], "-h")) - usage_with_options(builtin_fsmonitor__daemon_usage, options); + show_usage_with_options_if_asked(argc, argv, + builtin_fsmonitor__daemon_usage, options); die(_("fsmonitor--daemon not supported on this platform")); } diff --git a/builtin/gc.c b/builtin/gc.c index 3e754f25bb..0bf3533494 100644 --- a/builtin/gc.c +++ b/builtin/gc.c @@ -710,8 +710,8 @@ struct repository *repo UNUSED) OPT_END() }; - if (argc == 2 && !strcmp(argv[1], "-h")) - usage_with_options(builtin_gc_usage, builtin_gc_options); + show_usage_with_options_if_asked(argc, argv, + builtin_gc_usage, builtin_gc_options); strvec_pushl(&reflog, "reflog", "expire", "--all", NULL); strvec_pushl(&repack, "repack", "-d", "-l", NULL); diff --git a/builtin/get-tar-commit-id.c b/builtin/get-tar-commit-id.c index 6bec0d1854..e4cd1627b4 100644 --- a/builtin/get-tar-commit-id.c +++ b/builtin/get-tar-commit-id.c @@ -13,7 +13,7 @@ static const char builtin_get_tar_commit_id_usage[] = #define HEADERSIZE (2 * RECORDSIZE) int cmd_get_tar_commit_id(int argc, - const char **argv UNUSED, + const char **argv, const char *prefix, struct repository *repo UNUSED) { @@ -27,6 +27,8 @@ int cmd_get_tar_commit_id(int argc, BUG_ON_NON_EMPTY_PREFIX(prefix); + show_usage_if_asked(argc, argv, builtin_get_tar_commit_id_usage); + if (argc != 1) usage(builtin_get_tar_commit_id_usage); diff --git a/builtin/index-pack.c b/builtin/index-pack.c index 0bef61c572..7025c32fbb 100644 --- a/builtin/index-pack.c +++ b/builtin/index-pack.c @@ -1900,8 +1900,7 @@ int cmd_index_pack(int argc, */ fetch_if_missing = 0; - if (argc == 2 && !strcmp(argv[1], "-h")) - usage(index_pack_usage); + show_usage_if_asked(argc, argv, index_pack_usage); disable_replace_refs(); fsck_options.walk = mark_link; diff --git a/builtin/ls-files.c b/builtin/ls-files.c index 15499cd12b..a4431429b7 100644 --- a/builtin/ls-files.c +++ b/builtin/ls-files.c @@ -644,8 +644,8 @@ int cmd_ls_files(int argc, }; int ret = 0; - if (argc == 2 && !strcmp(argv[1], "-h")) - usage_with_options(ls_files_usage, builtin_ls_files_options); + show_usage_with_options_if_asked(argc, argv, + ls_files_usage, builtin_ls_files_options); prepare_repo_settings(the_repository); the_repository->settings.command_requires_full_index = 0; diff --git a/builtin/mailsplit.c b/builtin/mailsplit.c index 41dd304731..264df6259a 100644 --- a/builtin/mailsplit.c +++ b/builtin/mailsplit.c @@ -284,6 +284,8 @@ int cmd_mailsplit(int argc, BUG_ON_NON_EMPTY_PREFIX(prefix); + show_usage_if_asked(argc, argv, git_mailsplit_usage); + for (argp = argv+1; *argp; argp++) { const char *arg = *argp; @@ -297,8 +299,6 @@ int cmd_mailsplit(int argc, continue; } else if ( arg[1] == 'f' ) { nr = strtol(arg+2, NULL, 10); - } else if ( arg[1] == 'h' ) { - usage(git_mailsplit_usage); } else if ( arg[1] == 'b' && !arg[2] ) { allow_bare = 1; } else if (!strcmp(arg, "--keep-cr")) { diff --git a/builtin/merge-index.c b/builtin/merge-index.c index 342699edb7..3314fb1336 100644 --- a/builtin/merge-index.c +++ b/builtin/merge-index.c @@ -75,6 +75,9 @@ static void merge_all(void) } } +static const char usage_string[] = +"git merge-index [-o] [-q] <merge-program> (-a | [--] [<filename>...])"; + int cmd_merge_index(int argc, const char **argv, const char *prefix UNUSED, @@ -87,8 +90,10 @@ int cmd_merge_index(int argc, */ signal(SIGCHLD, SIG_DFL); + show_usage_if_asked(argc, argv, usage_string); + if (argc < 3) - usage("git merge-index [-o] [-q] <merge-program> (-a | [--] [<filename>...])"); + usage(usage_string); repo_read_index(the_repository); diff --git a/builtin/merge-ours.c b/builtin/merge-ours.c index 3ecd9172f1..97b8a792c7 100644 --- a/builtin/merge-ours.c +++ b/builtin/merge-ours.c @@ -23,8 +23,7 @@ int cmd_merge_ours(int argc, const char *prefix UNUSED, struct repository *repo UNUSED) { - if (argc == 2 && !strcmp(argv[1], "-h")) - usage(builtin_merge_ours_usage); + show_usage_if_asked(argc, argv, builtin_merge_ours_usage); /* * The contents of the current index becomes the tree we diff --git a/builtin/merge-recursive.c b/builtin/merge-recursive.c index 1dd295558b..abfc060e28 100644 --- a/builtin/merge-recursive.c +++ b/builtin/merge-recursive.c @@ -38,6 +38,12 @@ int cmd_merge_recursive(int argc, if (argv[0] && ends_with(argv[0], "-subtree")) o.subtree_shift = ""; + if (argc == 2 && !strcmp(argv[1], "-h")) { + struct strbuf msg = STRBUF_INIT; + strbuf_addf(&msg, builtin_merge_recursive_usage, argv[0]); + show_usage_if_asked(argc, argv, msg.buf); + } + if (argc < 4) usagef(builtin_merge_recursive_usage, argv[0]); diff --git a/builtin/merge.c b/builtin/merge.c index 5f67007bba..ba9faf126a 100644 --- a/builtin/merge.c +++ b/builtin/merge.c @@ -1300,8 +1300,8 @@ int cmd_merge(int argc, void *branch_to_free; int orig_argc = argc; - if (argc == 2 && !strcmp(argv[1], "-h")) - usage_with_options(builtin_merge_usage, builtin_merge_options); + show_usage_with_options_if_asked(argc, argv, + builtin_merge_usage, builtin_merge_options); prepare_repo_settings(the_repository); the_repository->settings.command_requires_full_index = 0; diff --git a/builtin/pack-redundant.c b/builtin/pack-redundant.c index e046575871..3febe732f8 100644 --- a/builtin/pack-redundant.c +++ b/builtin/pack-redundant.c @@ -595,8 +595,7 @@ int cmd_pack_redundant(int argc, const char **argv, const char *prefix UNUSED, s struct strbuf idx_name = STRBUF_INIT; char buf[GIT_MAX_HEXSZ + 2]; /* hex hash + \n + \0 */ - if (argc == 2 && !strcmp(argv[1], "-h")) - usage(pack_redundant_usage); + show_usage_if_asked(argc, argv, pack_redundant_usage); for (i = 1; i < argc; i++) { const char *arg = argv[i]; diff --git a/builtin/rebase.c b/builtin/rebase.c index 0498fff3c9..6c9eaf3788 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -1223,9 +1223,9 @@ int cmd_rebase(int argc, }; int i; - if (argc == 2 && !strcmp(argv[1], "-h")) - usage_with_options(builtin_rebase_usage, - builtin_rebase_options); + show_usage_with_options_if_asked(argc, argv, + builtin_rebase_usage, + builtin_rebase_options); prepare_repo_settings(the_repository); the_repository->settings.command_requires_full_index = 0; diff --git a/builtin/remote-ext.c b/builtin/remote-ext.c index 33c8ae0fc7..bd2037f27d 100644 --- a/builtin/remote-ext.c +++ b/builtin/remote-ext.c @@ -202,6 +202,8 @@ int cmd_remote_ext(int argc, { BUG_ON_NON_EMPTY_PREFIX(prefix); + show_usage_if_asked(argc, argv, usage_msg); + if (argc != 3) usage(usage_msg); diff --git a/builtin/remote-fd.c b/builtin/remote-fd.c index ae896eda57..39908546ba 100644 --- a/builtin/remote-fd.c +++ b/builtin/remote-fd.c @@ -64,6 +64,7 @@ int cmd_remote_fd(int argc, BUG_ON_NON_EMPTY_PREFIX(prefix); + show_usage_if_asked(argc, argv, usage_msg); if (argc != 3) usage(usage_msg); diff --git a/builtin/rev-list.c b/builtin/rev-list.c index 8a7db9b546..beb8c2529d 100644 --- a/builtin/rev-list.c +++ b/builtin/rev-list.c @@ -542,8 +542,7 @@ int cmd_rev_list(int argc, const char *show_progress = NULL; int ret = 0; - if (argc == 2 && !strcmp(argv[1], "-h")) - usage(rev_list_usage); + show_usage_if_asked(argc, argv, rev_list_usage); git_config(git_default_config, NULL); repo_init_revisions(the_repository, &revs, prefix); diff --git a/builtin/rev-parse.c b/builtin/rev-parse.c index 949747a6b6..428c866c05 100644 --- a/builtin/rev-parse.c +++ b/builtin/rev-parse.c @@ -713,6 +713,8 @@ int cmd_rev_parse(int argc, int seen_end_of_options = 0; enum format_type format = FORMAT_DEFAULT; + show_usage_if_asked(argc, argv, builtin_rev_parse_usage); + if (argc > 1 && !strcmp("--parseopt", argv[1])) return cmd_parseopt(argc - 1, argv + 1, prefix); diff --git a/builtin/unpack-file.c b/builtin/unpack-file.c index 6da2825753..fb5fcbc40a 100644 --- a/builtin/unpack-file.c +++ b/builtin/unpack-file.c @@ -26,6 +26,9 @@ static char *create_temp_file(struct object_id *oid) return path; } +static const char usage_msg[] = +"git unpack-file <blob>"; + int cmd_unpack_file(int argc, const char **argv, const char *prefix UNUSED, @@ -33,8 +36,9 @@ int cmd_unpack_file(int argc, { struct object_id oid; - if (argc != 2 || !strcmp(argv[1], "-h")) - usage("git unpack-file <blob>"); + show_usage_if_asked(argc, argv, usage_msg); + if (argc != 2) + usage(usage_msg); if (repo_get_oid(the_repository, argv[1], &oid)) die("Not a valid object name %s", argv[1]); diff --git a/builtin/unpack-objects.c b/builtin/unpack-objects.c index 842a90353a..a1c28e97e7 100644 --- a/builtin/unpack-objects.c +++ b/builtin/unpack-objects.c @@ -620,6 +620,8 @@ int cmd_unpack_objects(int argc, quiet = !isatty(2); + show_usage_if_asked(argc, argv, unpack_usage); + for (i = 1 ; i < argc; i++) { const char *arg = argv[i]; diff --git a/builtin/update-index.c b/builtin/update-index.c index 74bbad9f87..b2f6b1a3fb 100644 --- a/builtin/update-index.c +++ b/builtin/update-index.c @@ -1045,8 +1045,8 @@ int cmd_update_index(int argc, OPT_END() }; - if (argc == 2 && !strcmp(argv[1], "-h")) - usage_with_options(update_index_usage, options); + show_usage_with_options_if_asked(argc, argv, + update_index_usage, options); git_config(git_default_config, NULL); diff --git a/builtin/upload-archive.c b/builtin/upload-archive.c index 9e9343f121..97d7c9522f 100644 --- a/builtin/upload-archive.c +++ b/builtin/upload-archive.c @@ -27,7 +27,8 @@ int cmd_upload_archive_writer(int argc, const char *arg_cmd = "argument "; int ret; - if (argc != 2 || !strcmp(argv[1], "-h")) + show_usage_if_asked(argc, argv, upload_archive_usage); + if (argc != 2) usage(upload_archive_usage); if (!enter_repo(argv[1], 0)) @@ -92,8 +93,7 @@ struct repository *repo UNUSED) BUG_ON_NON_EMPTY_PREFIX(prefix); - if (argc == 2 && !strcmp(argv[1], "-h")) - usage(upload_archive_usage); + show_usage_if_asked(argc, argv, upload_archive_usage); /* * Set up sideband subprocess. diff --git a/builtin/var.c b/builtin/var.c index 50d024de66..ada642a9fe 100644 --- a/builtin/var.c +++ b/builtin/var.c @@ -221,6 +221,7 @@ int cmd_var(int argc, const struct git_var *git_var; char *val; + show_usage_if_asked(argc, argv, var_usage); if (argc != 2) usage(var_usage); diff --git a/git-compat-util.h b/git-compat-util.h index e283c46c6f..d43dd248c4 100644 --- a/git-compat-util.h +++ b/git-compat-util.h @@ -701,6 +701,8 @@ int error_errno(const char *err, ...) __attribute__((format (printf, 1, 2))); void warning(const char *err, ...) __attribute__((format (printf, 1, 2))); void warning_errno(const char *err, ...) __attribute__((format (printf, 1, 2))); +void show_usage_if_asked(int ac, const char **av, const char *err); + #ifndef NO_OPENSSL #ifdef APPLE_COMMON_CRYPTO #include "compat/apple-common-crypto.h" diff --git a/parse-options.c b/parse-options.c index 3ff6a5d1fa..35fbb3b0d6 100644 --- a/parse-options.c +++ b/parse-options.c @@ -1319,6 +1319,16 @@ void NORETURN usage_with_options(const char * const *usagestr, exit(129); } +void show_usage_with_options_if_asked(int ac, const char **av, + const char * const *usagestr, + const struct option *opts) +{ + if (ac == 2 && !strcmp(av[1], "-h")) { + usage_with_options_internal(NULL, usagestr, opts, 0, 0); + exit(129); + } +} + void NORETURN usage_msg_opt(const char *msg, const char * const *usagestr, const struct option *options) diff --git a/parse-options.h b/parse-options.h index d01361ca97..39f0886254 100644 --- a/parse-options.h +++ b/parse-options.h @@ -402,6 +402,10 @@ int parse_options(int argc, const char **argv, const char *prefix, NORETURN void usage_with_options(const char * const *usagestr, const struct option *options); +void show_usage_with_options_if_asked(int ac, const char **av, + const char * const *usage, + const struct option *options); + NORETURN void usage_msg_opt(const char *msg, const char * const *usagestr, const struct option *options); diff --git a/t/helper/test-simple-ipc.c b/t/helper/test-simple-ipc.c index fb5927775d..03cc5eea2c 100644 --- a/t/helper/test-simple-ipc.c +++ b/t/helper/test-simple-ipc.c @@ -612,8 +612,8 @@ int cmd__simple_ipc(int argc, const char **argv) if (argc < 2) usage_with_options(simple_ipc_usage, options); - if (argc == 2 && !strcmp(argv[1], "-h")) - usage_with_options(simple_ipc_usage, options); + show_usage_with_options_if_asked(argc, argv, + simple_ipc_usage, options); if (argc == 2 && !strcmp(argv[1], "SUPPORTS_SIMPLE_IPC")) return 0; diff --git a/t/t0012-help.sh b/t/t0012-help.sh index 1d273d91c2..d3a0967e9d 100755 --- a/t/t0012-help.sh +++ b/t/t0012-help.sh @@ -255,8 +255,9 @@ do ( GIT_CEILING_DIRECTORIES=$(pwd) && export GIT_CEILING_DIRECTORIES && - test_expect_code 129 git -C sub $builtin -h >output 2>&1 + test_expect_code 129 git -C sub $builtin -h >output 2>err ) && + test_must_be_empty err && test_grep usage output ' done <builtins diff --git a/t/t7600-merge.sh b/t/t7600-merge.sh index ef54cff4fa..2a8df29219 100755 --- a/t/t7600-merge.sh +++ b/t/t7600-merge.sh @@ -173,7 +173,7 @@ test_expect_success 'merge -h with invalid index' ' cd broken && git init && >.git/index && - test_expect_code 129 git merge -h 2>usage + test_expect_code 129 git merge -h >usage ) && test_grep "[Uu]sage: git merge" broken/usage ' @@ -8,7 +8,7 @@ #include "gettext.h" #include "trace2.h" -static void vreportf(const char *prefix, const char *err, va_list params) +static void vfreportf(FILE *f, const char *prefix, const char *err, va_list params) { char msg[4096]; char *p, *pend = msg + sizeof(msg); @@ -32,8 +32,13 @@ static void vreportf(const char *prefix, const char *err, va_list params) } *(p++) = '\n'; /* we no longer need a NUL */ - fflush(stderr); - write_in_full(2, msg, p - msg); + fflush(f); + write_in_full(fileno(f), msg, p - msg); +} + +static void vreportf(const char *prefix, const char *err, va_list params) +{ + vfreportf(stderr, prefix, err, params); } static NORETURN void usage_builtin(const char *err, va_list params) @@ -173,6 +178,22 @@ void NORETURN usage(const char *err) usagef("%s", err); } +static void show_usage_if_asked_helper(const char *err, ...) +{ + va_list params; + + va_start(params, err); + vfreportf(stdout, _("usage: "), err, params); + va_end(params); + exit(129); +} + +void show_usage_if_asked(int ac, const char **av, const char *err) +{ + if (ac == 2 && !strcmp(av[1], "-h")) + show_usage_if_asked_helper(err); +} + void NORETURN die(const char *err, ...) { va_list params; |