drop unused argc parameters

Many functions take an argv/argc pair, but never actually look at argc.
This makes it useless at best (we use the NULL sentinel in argv to find
the end of the array), and misleading at worst (what happens if the argc
count does not match the argv NULL?).

In each of these instances, the argv NULL does match the argc count, so
there are no bugs here. But let's tighten the interfaces to make it
harder to get wrong (and to reduce some -Wunused-parameter complaints).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/add.c b/builtin/add.c
index 26b6ced09ea26d7eda4c63a930354d2bb580a547..a825887c503dd38450a5dfc5ca750b31e3db00f3 100644 (file)
--- a/builtin/add.c
+++ b/builtin/add.c
@@ -239,7 +239,7 @@ int run_add_interactive(const char *revision, const char *patch_mode,
        return status;
 }
 
-int interactive_add(int argc, const char **argv, const char *prefix, int patch)
+int interactive_add(const char **argv, const char *prefix, int patch)
 {
        struct pathspec pathspec;
 
@@ -451,7 +451,7 @@ int cmd_add(int argc, const char **argv, const char *prefix)
        if (add_interactive) {
                if (pathspec_from_file)
                        die(_("--pathspec-from-file is incompatible with --interactive/--patch"));
-               exit(interactive_add(argc - 1, argv + 1, prefix, patch_interactive));
+               exit(interactive_add(argv + 1, prefix, patch_interactive));
        }
        if (legacy_stash_p) {
                struct pathspec pathspec;

diff --git a/builtin/commit.c b/builtin/commit.c
index 42b964e0cacd506203c3610e8830419dec11f260..1dfd799ec5185928f327d2cdd3156b41d6c0199e 100644 (file)
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -326,7 +326,7 @@ static void refresh_cache_or_die(int refresh_flags)
                die_resolve_conflict("commit");
 }
 
-static const char *prepare_index(int argc, const char **argv, const char *prefix,
+static const char *prepare_index(const char **argv, const char *prefix,
                                 const struct commit *current_head, int is_status)
 {
        struct string_list partial = STRING_LIST_INIT_DUP;
@@ -378,7 +378,7 @@ static const char *prepare_index(int argc, const char **argv, const char *prefix
                old_index_env = xstrdup_or_null(getenv(INDEX_ENVIRONMENT));
                setenv(INDEX_ENVIRONMENT, the_repository->index_file, 1);
 
-               if (interactive_add(argc, argv, prefix, patch_interactive) != 0)
+               if (interactive_add(argv, prefix, patch_interactive) != 0)
                        die(_("interactive add failed"));
 
                the_repository->index_file = old_repo_index_file;
@@ -1241,13 +1241,13 @@ static int parse_and_validate_options(int argc, const char *argv[],
        return argc;
 }
 
-static int dry_run_commit(int argc, const char **argv, const char *prefix,
+static int dry_run_commit(const char **argv, const char *prefix,
                          const struct commit *current_head, struct wt_status *s)
 {
        int committable;
        const char *index_file;
 
-       index_file = prepare_index(argc, argv, prefix, current_head, 1);
+       index_file = prepare_index(argv, prefix, current_head, 1);
        committable = run_status(stdout, index_file, prefix, 0, s);
        rollback_index_files();
 
@@ -1584,8 +1584,8 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
                verbose = (config_commit_verbose < 0) ? 0 : config_commit_verbose;
 
        if (dry_run)
-               return dry_run_commit(argc, argv, prefix, current_head, &s);
-       index_file = prepare_index(argc, argv, prefix, current_head, 0);
+               return dry_run_commit(argv, prefix, current_head, &s);
+       index_file = prepare_index(argv, prefix, current_head, 0);
 
        /* Set up everything for writing the commit object.  This includes
           running hooks, writing the trees, and interacting with the user.  */

diff --git a/commit.h b/commit.h
index e6f8f7c26fcf5232e260cd4801e6819de4091ec9..5467786c7be332299e54a954eb9af55b64d58848 100644 (file)
--- a/commit.h
+++ b/commit.h
@@ -248,7 +248,7 @@ struct oid_array;
 struct ref;
 int for_each_commit_graft(each_commit_graft_fn, void *);
 
-int interactive_add(int argc, const char **argv, const char *prefix, int patch);
+int interactive_add(const char **argv, const char *prefix, int patch);
 int run_add_interactive(const char *revision, const char *patch_mode,
                        const struct pathspec *pathspec);
 

diff --git a/revision.c b/revision.c
index d9dc5781accae42e93c6169ab2a29233ac65c59b..aa62212040814e29d17b8d1d7cafc15d1d50612d 100644 (file)
--- a/revision.c
+++ b/revision.c
@@ -2580,8 +2580,8 @@ static int for_each_good_bisect_ref(struct ref_store *refs, each_ref_fn fn, void
 }
 
 static int handle_revision_pseudo_opt(const char *submodule,
-                               struct rev_info *revs,
-                               int argc, const char **argv, int *flags)
+                                     struct rev_info *revs,
+                                     const char **argv, int *flags)
 {
        const char *arg = argv[0];
        const char *optarg;
@@ -2752,7 +2752,7 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, struct s
                        int opts;
 
                        opts = handle_revision_pseudo_opt(submodule,
-                                               revs, argc - i, argv + i,
+                                               revs, argv + i,
                                                &flags);
                        if (opts > 0) {
                                i += opts - 1;

diff --git a/t/helper/test-submodule-nested-repo-config.c b/t/helper/test-submodule-nested-repo-config.c
index bc97929bbc3a9f03c069ea556575de4ef4397d23..c5fd4527dccba2803d40e440bf7db1b331f5a0c2 100644 (file)
--- a/t/helper/test-submodule-nested-repo-config.c
+++ b/t/helper/test-submodule-nested-repo-config.c
@@ -1,7 +1,7 @@
 #include "test-tool.h"
 #include "submodule-config.h"
 
-static void die_usage(int argc, const char **argv, const char *msg)
+static void die_usage(const char **argv, const char *msg)
 {
        fprintf(stderr, "%s\n", msg);
        fprintf(stderr, "Usage: %s <submodulepath> <config name>\n", argv[0]);
@@ -14,13 +14,13 @@ int cmd__submodule_nested_repo_config(int argc, const char **argv)
        const struct submodule *sub;
 
        if (argc < 3)
-               die_usage(argc, argv, "Wrong number of arguments.");
+               die_usage(argv, "Wrong number of arguments.");
 
        setup_git_directory();
 
        sub = submodule_from_path(the_repository, &null_oid, argv[1]);
        if (repo_submodule_init(&subrepo, the_repository, sub)) {
-               die_usage(argc, argv, "Submodule not found.");
+               die_usage(argv, "Submodule not found.");
        }
 
        /* Read the config of _child_ submodules. */