Code

Merge branch 'ss/mailsplit'
[git.git] / builtin-revert.c
index 4ba0ee63ab4ca5e77aa350d1956f1b3312945f5d..a9347cf9c57b2e4d15d37da609a2851e5b1cfc8e 100644 (file)
@@ -7,6 +7,7 @@
 #include "run-command.h"
 #include "exec_cmd.h"
 #include "utf8.h"
+#include "parse-options.h"
 
 /*
  * This implements the builtins revert and cherry-pick.
  * Copyright (c) 2005 Junio C Hamano
  */
 
-static const char *revert_usage = "git-revert [--edit | --no-edit] [-n] <commit-ish>";
+static const char * const revert_usage[] = {
+       "git-revert [options] <commit-ish>",
+       NULL
+};
 
-static const char *cherry_pick_usage = "git-cherry-pick [--edit] [-n] [-r] [-x] <commit-ish>";
+static const char * const cherry_pick_usage[] = {
+       "git-cherry-pick [options] <commit-ish>",
+       NULL
+};
 
-static int edit;
-static int replay;
-enum { REVERT, CHERRY_PICK } action;
-static int no_commit;
+static int edit, no_replay, no_commit, needed_deref;
+static enum { REVERT, CHERRY_PICK } action;
 static struct commit *commit;
-static int needed_deref;
 
 static const char *me;
 
 #define GIT_REFLOG_ACTION "GIT_REFLOG_ACTION"
 
-static void parse_options(int argc, const char **argv)
+static void parse_args(int argc, const char **argv)
 {
-       const char *usage_str = action == REVERT ?
-               revert_usage : cherry_pick_usage;
+       const char * const * usage_str =
+               action == REVERT ?  revert_usage : cherry_pick_usage;
        unsigned char sha1[20];
        const char *arg;
-       int i;
-
-       if (argc < 2)
-               usage(usage_str);
-
-       for (i = 1; i < argc - 1; i++) {
-               arg = argv[i];
-               if (!strcmp(arg, "-n") || !strcmp(arg, "--no-commit"))
-                       no_commit = 1;
-               else if (!strcmp(arg, "-e") || !strcmp(arg, "--edit"))
-                       edit = 1;
-               else if (!strcmp(arg, "--no-edit"))
-                       edit = 0;
-               else if (!strcmp(arg, "-x") || !strcmp(arg, "--i-really-want-"
-                               "to-expose-my-private-commit-object-name"))
-                       replay = 0;
-               else if (strcmp(arg, "-r"))
-                       usage(usage_str);
-       }
-
-       arg = argv[argc - 1];
+       int noop;
+       struct option options[] = {
+               OPT_BOOLEAN('n', "no-commit", &no_commit, "don't automatically commit"),
+               OPT_BOOLEAN('e', "edit", &edit, "edit the commit message"),
+               OPT_BOOLEAN('x', NULL, &no_replay, "append commit name when cherry-picking"),
+               OPT_BOOLEAN('r', NULL, &noop, "no-op (backward compatibility)"),
+               OPT_END(),
+       };
+
+       if (parse_options(argc, argv, options, usage_str, 0) != 1)
+               usage_with_options(usage_str, options);
+       arg = argv[0];
        if (get_sha1(arg, sha1))
                die ("Cannot find '%s'", arg);
        commit = (struct commit *)parse_object(sha1);
@@ -104,7 +99,7 @@ static char *get_oneline(const char *message)
        return result;
 }
 
-char *get_encoding(const char *message)
+static char *get_encoding(const char *message)
 {
        const char *p = message, *eol;
 
@@ -126,14 +121,14 @@ char *get_encoding(const char *message)
        return NULL;
 }
 
-struct lock_file msg_file;
+static struct lock_file msg_file;
 static int msg_fd;
 
 static void add_to_msg(const char *string)
 {
        int len = strlen(string);
        if (write_in_full(msg_fd, string, len) < 0)
-               die ("Could not write to .msg");
+               die ("Could not write to MERGE_MSG");
 }
 
 static void add_message_to_msg(const char *message)
@@ -165,9 +160,7 @@ static void set_author_ident_env(const char *message)
                        char *line, *pend, *email, *timestamp;
 
                        p += 7;
-                       line = xmalloc(eol + 1 - p);
-                       memcpy(line, p, eol - p);
-                       line[eol - p] = '\0';
+                       line = xmemdupz(p, eol - p);
                        email = strchr(line, '<');
                        if (!email)
                                die ("Could not extract author email from %s",
@@ -237,14 +230,15 @@ static int revert_or_cherry_pick(int argc, const char **argv)
        int i;
        char *oneline, *reencoded_message = NULL;
        const char *message, *encoding;
+       const char *defmsg = xstrdup(git_path("MERGE_MSG"));
 
        git_config(git_default_config);
        me = action == REVERT ? "revert" : "cherry-pick";
        setenv(GIT_REFLOG_ACTION, me, 0);
-       parse_options(argc, argv);
+       parse_args(argc, argv);
 
        /* this is copied from the shell script, but it's never triggered... */
-       if (action == REVERT && replay)
+       if (action == REVERT && !no_replay)
                die("revert is incompatible with replay");
 
        if (no_commit) {
@@ -280,7 +274,7 @@ static int revert_or_cherry_pick(int argc, const char **argv)
         * reverse of it if we are revert.
         */
 
-       msg_fd = hold_lock_file_for_update(&msg_file, ".msg", 1);
+       msg_fd = hold_lock_file_for_update(&msg_file, defmsg, 1);
 
        encoding = get_encoding(message);
        if (!encoding)
@@ -308,7 +302,7 @@ static int revert_or_cherry_pick(int argc, const char **argv)
                next = commit;
                set_author_ident_env(message);
                add_message_to_msg(message);
-               if (!replay) {
+               if (no_replay) {
                        add_to_msg("(cherry picked from commit ");
                        add_to_msg(sha1_to_hex(commit->object.sha1));
                        add_to_msg(")\n");
@@ -330,7 +324,6 @@ static int revert_or_cherry_pick(int argc, const char **argv)
                                sha1_to_hex(head), "HEAD",
                                sha1_to_hex(next->object.sha1), oneline) ||
                        write_tree(head, 0, NULL)) {
-               const char *target = git_path("MERGE_MSG");
                add_to_msg("\nConflicts:\n\n");
                read_cache();
                for (i = 0; i < active_nr;) {
@@ -345,13 +338,10 @@ static int revert_or_cherry_pick(int argc, const char **argv)
                        }
                }
                if (close(msg_fd) || commit_lock_file(&msg_file) < 0)
-                       die ("Error wrapping up .msg");
-               unlink(target);
-               if (rename(".msg", target))
-                       die ("Could not move .msg to %s", target);
+                       die ("Error wrapping up %s", defmsg);
                fprintf(stderr, "Automatic %s failed.  "
                        "After resolving the conflicts,\n"
-                       "mark the corrected paths with 'git-add <paths>'\n"
+                       "mark the corrected paths with 'git add <paths>' "
                        "and commit the result.\n", me);
                if (action == CHERRY_PICK) {
                        fprintf(stderr, "When commiting, use the option "
@@ -362,7 +352,7 @@ static int revert_or_cherry_pick(int argc, const char **argv)
                exit(1);
        }
        if (close(msg_fd) || commit_lock_file(&msg_file) < 0)
-               die ("Error wrapping up .msg");
+               die ("Error wrapping up %s", defmsg);
        fprintf(stderr, "Finished one %s.\n", me);
 
        /*
@@ -376,11 +366,9 @@ static int revert_or_cherry_pick(int argc, const char **argv)
 
        if (!no_commit) {
                if (edit)
-                       return execl_git_cmd("commit", "-n", "-F", ".msg",
-                               "-e", NULL);
+                       return execl_git_cmd("commit", "-n", NULL);
                else
-                       return execl_git_cmd("commit", "-n", "-F", ".msg",
-                               NULL);
+                       return execl_git_cmd("commit", "-n", "-F", defmsg, NULL);
        }
        if (reencoded_message)
                free(reencoded_message);
@@ -392,13 +380,14 @@ int cmd_revert(int argc, const char **argv, const char *prefix)
 {
        if (isatty(0))
                edit = 1;
+       no_replay = 1;
        action = REVERT;
        return revert_or_cherry_pick(argc, argv);
 }
 
 int cmd_cherry_pick(int argc, const char **argv, const char *prefix)
 {
-       replay = 1;
+       no_replay = 0;
        action = CHERRY_PICK;
        return revert_or_cherry_pick(argc, argv);
 }