Merge branch 'ep/shell-command-substitution'

diff --git a/builtin/commit.c b/builtin/commit.c
index 3783bcadcd5232ceccab7f4fd2559a9999c53ffa..d9550c54d02bbd1ba4df87734433dea4a7097e2e 100644 (file)
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -113,6 +113,7 @@ static char *sign_commit;
 static enum {
        CLEANUP_SPACE,
        CLEANUP_NONE,
+       CLEANUP_SCISSORS,
        CLEANUP_ALL
 } cleanup_mode;
 static const char *cleanup_arg;
@@ -610,7 +611,7 @@ 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) {
@@ -755,7 +756,9 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
                int ident_shown = 0;
                int saved_color_setting;
                char *ai_tmp, *ci_tmp;
-               if (whence != FROM_COMMIT)
+               if (whence != FROM_COMMIT) {
+                       if (cleanup_mode == CLEANUP_SCISSORS)
+                               wt_status_add_cut_line(s->fp);
                        status_printf_ln(s, GIT_COLOR_NORMAL,
                            whence == FROM_MERGE
                                ? _("\n"
@@ -771,6 +774,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
                                git_path(whence == FROM_MERGE
                                         ? "MERGE_HEAD"
                                         : "CHERRY_PICK_HEAD"));
+               }
 
                fprintf(s->fp, "\n");
                if (cleanup_mode == CLEANUP_ALL)
@@ -778,6 +782,8 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
                                _("Please enter the commit message for your changes."
                                  " Lines starting\nwith '%c' will be ignored, and an empty"
                                  " message aborts the commit.\n"), comment_line_char);
+               else if (cleanup_mode == CLEANUP_SCISSORS && whence == FROM_COMMIT)
+                       wt_status_add_cut_line(s->fp);
                else /* CLEANUP_SPACE, that is. */
                        status_printf(s, GIT_COLOR_NORMAL,
                                _("Please enter the commit message for your changes."
@@ -867,8 +873,8 @@ 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) {
@@ -884,7 +890,7 @@ 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;
        }
 
@@ -1068,8 +1074,6 @@ 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)
@@ -1133,6 +1137,8 @@ static int parse_and_validate_options(int argc, const char *argv[],
                cleanup_mode = CLEANUP_SPACE;
        else if (!strcmp(cleanup_arg, "strip"))
                cleanup_mode = CLEANUP_ALL;
+       else if (!strcmp(cleanup_arg, "scissors"))
+               cleanup_mode = use_editor ? CLEANUP_SCISSORS : CLEANUP_SPACE;
        else
                die(_("Invalid cleanup mode %s"), cleanup_arg);
 
@@ -1450,6 +1456,29 @@ 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;
@@ -1605,8 +1634,8 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
                die(_("could not read commit message: %s"), strerror(saved_errno));
        }
 
-       /* Truncate the message just before the diff, if any. */
-       if (verbose)
+       if (verbose || /* Truncate the message just before the diff, if any. */
+           cleanup_mode == CLEANUP_SCISSORS)
                wt_status_truncate_message_at_cut_line(&sb);
 
        if (cleanup_mode != CLEANUP_NONE)
@@ -1674,7 +1703,7 @@ 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");