From 41f43b8243f42b9df2e98be8460646d4c0100ad3 Mon Sep 17 00:00:00 2001 From: Patrick Steinhardt Date: Fri, 6 Dec 2024 11:27:19 +0100 Subject: global: mark code units that generate warnings with `-Wsign-compare` Mark code units that generate warnings with `-Wsign-compare`. This allows for a structured approach to get rid of all such warnings over time in a way that can be easily measured. Signed-off-by: Patrick Steinhardt Signed-off-by: Junio C Hamano --- builtin/diff-tree.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'builtin/diff-tree.c') diff --git a/builtin/diff-tree.c b/builtin/diff-tree.c index 4b6656bb9f..a4df2d0c13 100644 --- a/builtin/diff-tree.c +++ b/builtin/diff-tree.c @@ -1,4 +1,6 @@ #define USE_THE_REPOSITORY_VARIABLE +#define DISABLE_SIGN_COMPARE_WARNINGS + #include "builtin.h" #include "config.h" #include "diff.h" -- cgit v1.3 From 47d72a74a737f06791c282a75baf2c573cdf42f6 Mon Sep 17 00:00:00 2001 From: Patrick Steinhardt Date: Fri, 6 Dec 2024 11:27:21 +0100 Subject: diff.h: fix index used to loop through unsigned integer The `struct diff_flags` structure is essentially an array of flags, all of which have the same type. We can thus use `sizeof()` to iterate through all of the flags, which we do in `diff_flags_or()`. But while the statement returns an unsigned integer, we used a signed integer to iterate through the flags, which generates a warning. Fix this by using `size_t` for the index instead. Signed-off-by: Patrick Steinhardt Signed-off-by: Junio C Hamano --- builtin/am.c | 1 - builtin/diff-tree.c | 1 - builtin/merge-ours.c | 1 - builtin/pack-refs.c | 1 - builtin/range-diff.c | 1 - builtin/reflog.c | 1 - builtin/reset.c | 1 - builtin/revert.c | 1 - builtin/shortlog.c | 1 - diff-merges.c | 2 -- diff.h | 3 +-- diffcore-order.c | 2 -- diffcore-rotate.c | 2 -- list-objects-filter.c | 1 - patch-ids.c | 2 -- reachable.c | 1 - reflog-walk.c | 1 - t/helper/test-revision-walking.c | 1 - 18 files changed, 1 insertion(+), 23 deletions(-) (limited to 'builtin/diff-tree.c') diff --git a/builtin/am.c b/builtin/am.c index f3b6546b30..1338b606fe 100644 --- a/builtin/am.c +++ b/builtin/am.c @@ -5,7 +5,6 @@ */ #define USE_THE_REPOSITORY_VARIABLE -#define DISABLE_SIGN_COMPARE_WARNINGS #include "builtin.h" #include "abspath.h" diff --git a/builtin/diff-tree.c b/builtin/diff-tree.c index a4df2d0c13..40804e7b48 100644 --- a/builtin/diff-tree.c +++ b/builtin/diff-tree.c @@ -1,5 +1,4 @@ #define USE_THE_REPOSITORY_VARIABLE -#define DISABLE_SIGN_COMPARE_WARNINGS #include "builtin.h" #include "config.h" diff --git a/builtin/merge-ours.c b/builtin/merge-ours.c index 3672c6353f..3ecd9172f1 100644 --- a/builtin/merge-ours.c +++ b/builtin/merge-ours.c @@ -9,7 +9,6 @@ */ #define USE_THE_REPOSITORY_VARIABLE -#define DISABLE_SIGN_COMPARE_WARNINGS #include "git-compat-util.h" #include "builtin.h" diff --git a/builtin/pack-refs.c b/builtin/pack-refs.c index 71175a713a..4fdd68880e 100644 --- a/builtin/pack-refs.c +++ b/builtin/pack-refs.c @@ -1,5 +1,4 @@ #define USE_THE_REPOSITORY_VARIABLE -#define DISABLE_SIGN_COMPARE_WARNINGS #include "builtin.h" #include "config.h" diff --git a/builtin/range-diff.c b/builtin/range-diff.c index aa88a46d9e..433c305fc5 100644 --- a/builtin/range-diff.c +++ b/builtin/range-diff.c @@ -1,5 +1,4 @@ #define USE_THE_REPOSITORY_VARIABLE -#define DISABLE_SIGN_COMPARE_WARNINGS #include "builtin.h" #include "gettext.h" diff --git a/builtin/reflog.c b/builtin/reflog.c index 08e99a22b0..95f264989b 100644 --- a/builtin/reflog.c +++ b/builtin/reflog.c @@ -1,5 +1,4 @@ #define USE_THE_REPOSITORY_VARIABLE -#define DISABLE_SIGN_COMPARE_WARNINGS #include "builtin.h" #include "config.h" diff --git a/builtin/reset.c b/builtin/reset.c index f34d22190f..73b4537a9a 100644 --- a/builtin/reset.c +++ b/builtin/reset.c @@ -9,7 +9,6 @@ */ #define USE_THE_REPOSITORY_VARIABLE -#define DISABLE_SIGN_COMPARE_WARNINGS #include "builtin.h" #include "advice.h" diff --git a/builtin/revert.c b/builtin/revert.c index 4b57c2c383..aca6c293cd 100644 --- a/builtin/revert.c +++ b/builtin/revert.c @@ -1,5 +1,4 @@ #define USE_THE_REPOSITORY_VARIABLE -#define DISABLE_SIGN_COMPARE_WARNINGS #include "git-compat-util.h" #include "builtin.h" diff --git a/builtin/shortlog.c b/builtin/shortlog.c index 1c46f13a16..30075b67be 100644 --- a/builtin/shortlog.c +++ b/builtin/shortlog.c @@ -1,5 +1,4 @@ #define USE_THE_REPOSITORY_VARIABLE -#define DISABLE_SIGN_COMPARE_WARNINGS #include "builtin.h" #include "config.h" diff --git a/diff-merges.c b/diff-merges.c index 0adfe7f5c0..45507588a2 100644 --- a/diff-merges.c +++ b/diff-merges.c @@ -1,5 +1,3 @@ -#define DISABLE_SIGN_COMPARE_WARNINGS - #include "git-compat-util.h" #include "diff-merges.h" diff --git a/diff.h b/diff.h index 5c8de79535..6e6007c17b 100644 --- a/diff.h +++ b/diff.h @@ -205,9 +205,8 @@ static inline void diff_flags_or(struct diff_flags *a, { char *tmp_a = (char *)a; const char *tmp_b = (const char *)b; - int i; - for (i = 0; i < sizeof(struct diff_flags); i++) + for (size_t i = 0; i < sizeof(struct diff_flags); i++) tmp_a[i] |= tmp_b[i]; } diff --git a/diffcore-order.c b/diffcore-order.c index ec59d3d9bc..f91ef22471 100644 --- a/diffcore-order.c +++ b/diffcore-order.c @@ -2,8 +2,6 @@ * Copyright (C) 2005 Junio C Hamano */ -#define DISABLE_SIGN_COMPARE_WARNINGS - #include "git-compat-util.h" #include "gettext.h" #include "diff.h" diff --git a/diffcore-rotate.c b/diffcore-rotate.c index 941a022d5e..67b591261a 100644 --- a/diffcore-rotate.c +++ b/diffcore-rotate.c @@ -3,8 +3,6 @@ * Based on diffcore-order.c, which is Copyright (C) 2005, Junio C Hamano */ -#define DISABLE_SIGN_COMPARE_WARNINGS - #include "git-compat-util.h" #include "gettext.h" #include "diff.h" diff --git a/list-objects-filter.c b/list-objects-filter.c index 4afa3029dc..dc598a081b 100644 --- a/list-objects-filter.c +++ b/list-objects-filter.c @@ -1,5 +1,4 @@ #define USE_THE_REPOSITORY_VARIABLE -#define DISABLE_SIGN_COMPARE_WARNINGS #include "git-compat-util.h" #include "dir.h" diff --git a/patch-ids.c b/patch-ids.c index 8b89198073..a5683b462c 100644 --- a/patch-ids.c +++ b/patch-ids.c @@ -1,5 +1,3 @@ -#define DISABLE_SIGN_COMPARE_WARNINGS - #include "git-compat-util.h" #include "diff.h" #include "commit.h" diff --git a/reachable.c b/reachable.c index 34079e1ae9..3e9b3dd0a4 100644 --- a/reachable.c +++ b/reachable.c @@ -1,5 +1,4 @@ #define USE_THE_REPOSITORY_VARIABLE -#define DISABLE_SIGN_COMPARE_WARNINGS #include "git-compat-util.h" #include "gettext.h" diff --git a/reflog-walk.c b/reflog-walk.c index b53628ed53..c7070b13b0 100644 --- a/reflog-walk.c +++ b/reflog-walk.c @@ -1,5 +1,4 @@ #define USE_THE_REPOSITORY_VARIABLE -#define DISABLE_SIGN_COMPARE_WARNINGS #include "git-compat-util.h" #include "commit.h" diff --git a/t/helper/test-revision-walking.c b/t/helper/test-revision-walking.c index 3b931a34a2..071f5bd1e2 100644 --- a/t/helper/test-revision-walking.c +++ b/t/helper/test-revision-walking.c @@ -9,7 +9,6 @@ */ #define USE_THE_REPOSITORY_VARIABLE -#define DISABLE_SIGN_COMPARE_WARNINGS #include "test-tool.h" #include "commit.h" -- cgit v1.3 From f66d1423f528403a33e8984f765801deb1b9cb97 Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Thu, 16 Jan 2025 13:35:53 -0800 Subject: builtin: send usage() help text to standard output Using the show_usage_and_exit_if_asked() helper we introduced earlier, fix callers of usage() that want to show the help text when explicitly asked by the end-user. The help text now goes to the standard output stream for them. These are the bog standard "if we got only '-h', then that is a request for help" callers. Their if (argc == 2 && !strcmp(argv[1], "-h")) usage(message); are simply replaced with show_usage_and_exit_if_asked(argc, argv, message); With this, the built-ins tested by t0012 all send their help text to their standard output stream, so the check in t0012 that was half tightened earlier is now fully tightened to insist on standard error stream being empty. Acked-by: Jeff King Signed-off-by: Junio C Hamano --- builtin/check-ref-format.c | 4 ++-- builtin/diff-files.c | 3 +-- builtin/diff-index.c | 3 +-- builtin/diff-tree.c | 3 +-- builtin/fast-import.c | 3 +-- builtin/get-tar-commit-id.c | 4 +++- builtin/index-pack.c | 3 +-- builtin/mailsplit.c | 4 ++-- builtin/merge-index.c | 7 ++++++- builtin/merge-ours.c | 3 +-- builtin/merge-recursive.c | 6 ++++++ builtin/pack-redundant.c | 3 +-- builtin/remote-ext.c | 2 ++ builtin/remote-fd.c | 1 + builtin/rev-list.c | 3 +-- builtin/rev-parse.c | 2 ++ builtin/unpack-objects.c | 2 ++ builtin/upload-archive.c | 3 +-- t/t0012-help.sh | 10 ++-------- 19 files changed, 37 insertions(+), 32 deletions(-) (limited to 'builtin/diff-tree.c') 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/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/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 0b62b2589f..d41b126ec0 100644 --- a/builtin/index-pack.c +++ b/builtin/index-pack.c @@ -1897,8 +1897,7 @@ 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/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] (-a | [--] [...])"; + 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] (-a | [--] [...])"); + 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/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/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 3196da7b2d..28f148049f 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-objects.c b/builtin/unpack-objects.c index 2197d6d933..8faa6024b2 100644 --- a/builtin/unpack-objects.c +++ b/builtin/unpack-objects.c @@ -619,6 +619,8 @@ 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/upload-archive.c b/builtin/upload-archive.c index 9d76a31c8f..97d7c9522f 100644 --- a/builtin/upload-archive.c +++ b/builtin/upload-archive.c @@ -93,8 +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/t/t0012-help.sh b/t/t0012-help.sh index 9c7ae9fd36..d3a0967e9d 100755 --- a/t/t0012-help.sh +++ b/t/t0012-help.sh @@ -257,14 +257,8 @@ do export GIT_CEILING_DIRECTORIES && test_expect_code 129 git -C sub $builtin -h >output 2>err ) && - if test -n "$GIT_TEST_HELP_MUST_BE_STDOUT" - then - test_must_be_empty err && - test_grep usage output - else - test_grep usage output || - test_grep usage err - fi + test_must_be_empty err && + test_grep usage output ' done