run_external_diff: refactor cmdline setup logic

diff --git a/builtin/commit.c b/builtin/commit.c
index 4f765a2b3e022a0906611633577ea58abfdb86db..7d711eafa698d933291beaa00b485397c7efb256 100644 (file)
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -234,7 +234,7 @@ static int list_paths(struct string_list *list, const char *with_tree,
 
                if (ce->ce_flags & CE_UPDATE)
                        continue;
-               if (!match_pathspec_depth(pattern, ce->name, ce_namelen(ce), 0, m))
+               if (!ce_path_match(ce, pattern, m))
                        continue;
                item = string_list_insert(list, ce->name);
                if (ce_skip_worktree(ce))
@@ -612,7 +612,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
        /* This checks and barfs if author is badly specified */
        determine_author_info(author_ident);
 
-       if (!no_verify && run_hook(index_file, "pre-commit", NULL))
+       if (!no_verify && run_commit_hook(use_editor, index_file, "pre-commit", NULL))
                return 0;
 
        if (squash_message) {
@@ -866,8 +866,8 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
                return 0;
        }
 
-       if (run_hook(index_file, "prepare-commit-msg",
-                    git_path(commit_editmsg), hook_arg1, hook_arg2, NULL))
+       if (run_commit_hook(use_editor, index_file, "prepare-commit-msg",
+                           git_path(commit_editmsg), hook_arg1, hook_arg2, NULL))
                return 0;
 
        if (use_editor) {
@@ -883,7 +883,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
        }
 
        if (!no_verify &&
-           run_hook(index_file, "commit-msg", git_path(commit_editmsg), NULL)) {
+           run_commit_hook(use_editor, index_file, "commit-msg", git_path(commit_editmsg), NULL)) {
                return 0;
        }
 
@@ -1067,8 +1067,6 @@ static int parse_and_validate_options(int argc, const char *argv[],
                use_editor = 0;
        if (0 <= edit_flag)
                use_editor = edit_flag;
-       if (!use_editor)
-               setenv("GIT_EDITOR", ":", 1);
 
        /* Sanity check options */
        if (amend && !current_head)
@@ -1123,7 +1121,7 @@ static int parse_and_validate_options(int argc, const char *argv[],
        if (argc == 0 && only && amend)
                only_include_assumed = _("Clever... amending the last one with dirty index.");
        if (argc > 0 && !also && !only)
-               only_include_assumed = _("Explicit paths specified without -i nor -o; assuming --only paths...");
+               only_include_assumed = _("Explicit paths specified without -i or -o; assuming --only paths...");
        if (!cleanup_arg || !strcmp(cleanup_arg, "default"))
                cleanup_mode = use_editor ? CLEANUP_ALL : CLEANUP_SPACE;
        else if (!strcmp(cleanup_arg, "verbatim"))
@@ -1338,7 +1336,7 @@ static void print_summary(const char *prefix, const unsigned char *sha1,
        commit = lookup_commit(sha1);
        if (!commit)
                die(_("couldn't look up newly created commit"));
-       if (!commit || parse_commit(commit))
+       if (parse_commit(commit))
                die(_("could not parse newly created commit"));
 
        strbuf_addstr(&format, "format:%h] %s");
@@ -1445,6 +1443,29 @@ static int run_rewrite_hook(const unsigned char *oldsha1,
        return finish_command(&proc);
 }
 
+int run_commit_hook(int editor_is_used, const char *index_file, const char *name, ...)
+{
+       const char *hook_env[3] =  { NULL };
+       char index[PATH_MAX];
+       va_list args;
+       int ret;
+
+       snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", index_file);
+       hook_env[0] = index;
+
+       /*
+        * Let the hook know that no editor will be launched.
+        */
+       if (!editor_is_used)
+               hook_env[1] = "GIT_EDITOR=:";
+
+       va_start(args, name);
+       ret = run_hook_ve(hook_env, name, args);
+       va_end(args);
+
+       return ret;
+}
+
 int cmd_commit(int argc, const char **argv, const char *prefix)
 {
        static struct wt_status s;
@@ -1505,7 +1526,7 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
        struct strbuf sb = STRBUF_INIT;
        struct strbuf author_ident = STRBUF_INIT;
        const char *index_file, *reflog_msg;
-       char *nl, *p;
+       char *nl;
        unsigned char sha1[20];
        struct ref_lock *ref_lock;
        struct commit_list *parents = NULL, **pptr = &parents;
@@ -1525,7 +1546,7 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
                current_head = NULL;
        else {
                current_head = lookup_commit_or_die(sha1, "HEAD");
-               if (!current_head || parse_commit(current_head))
+               if (parse_commit(current_head))
                        die(_("could not parse HEAD commit"));
        }
        argc = parse_and_validate_options(argc, argv, builtin_commit_options,
@@ -1601,11 +1622,8 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
        }
 
        /* Truncate the message just before the diff, if any. */
-       if (verbose) {
-               p = strstr(sb.buf, "\ndiff --git ");
-               if (p != NULL)
-                       strbuf_setlen(&sb, p - sb.buf + 1);
-       }
+       if (verbose)
+               wt_status_truncate_message_at_cut_line(&sb);
 
        if (cleanup_mode != CLEANUP_NONE)
                stripspace(&sb, cleanup_mode == CLEANUP_ALL);
@@ -1672,7 +1690,7 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
                     "not exceeded, and then \"git reset HEAD\" to recover."));
 
        rerere(0);
-       run_hook(get_index_file(), "post-commit", NULL);
+       run_commit_hook(use_editor, get_index_file(), "post-commit", NULL);
        if (amend && !no_post_rewrite) {
                struct notes_rewrite_cfg *cfg;
                cfg = init_copy_notes_for_rewrite("amend");