#include "rerere.h"
#include "help.h"
#include "merge-recursive.h"
+#include "resolve-undo.h"
#define DEFAULT_TWOHEAD (1<<0)
#define DEFAULT_OCTOPUS (1<<1)
static int show_diffstat = 1, option_log, squash;
static int option_commit = 1, allow_fast_forward = 1;
+static int fast_forward_only;
static int allow_trivial = 1, have_message;
static struct strbuf merge_msg;
static struct commit_list *remoteheads;
static size_t use_strategies_nr, use_strategies_alloc;
static const char *branch;
static int verbosity;
+static int allow_rerere_auto;
static struct strategy all_strategy[] = {
{ "recursive", DEFAULT_TWOHEAD | NO_TRIVIAL },
if (unset)
strbuf_setlen(buf, 0);
else if (arg) {
- strbuf_addf(buf, "%s\n\n", arg);
+ strbuf_addf(buf, "%s%s", buf->len ? "\n\n" : "", arg);
have_message = 1;
} else
return error("switch `m' requires a value");
found = 1;
if (!found)
add_cmdname(¬_strategies, ent->name, ent->len);
- exclude_cmds(&main_cmds, ¬_strategies);
}
+ exclude_cmds(&main_cmds, ¬_strategies);
}
if (!is_in_cmdlist(&main_cmds, name) && !is_in_cmdlist(&other_cmds, name)) {
fprintf(stderr, "Could not find merge strategy '%s'.\n", name);
OPT_BOOLEAN(0, "commit", &option_commit,
"perform a commit if the merge succeeds (default)"),
OPT_BOOLEAN(0, "ff", &allow_fast_forward,
- "allow fast forward (default)"),
+ "allow fast-forward (default)"),
+ OPT_BOOLEAN(0, "ff-only", &fast_forward_only,
+ "abort if fast-forward is not possible"),
+ OPT_RERERE_AUTOUPDATE(&allow_rerere_auto),
OPT_CALLBACK('s', "strategy", &use_strategies, "strategy",
"merge strategy to use", option_parse_strategy),
OPT_CALLBACK('m', "message", &merge_msg, "message",
struct strbuf out = STRBUF_INIT;
struct commit_list *j;
int fd;
+ struct pretty_print_context ctx = {0};
printf("Squash commit -- not updating HEAD\n");
fd = open(git_path("SQUASH_MSG"), O_WRONLY | O_CREAT, 0666);
if (prepare_revision_walk(&rev))
die("revision walk setup failed");
+ ctx.abbrev = rev.abbrev;
+ ctx.date_mode = rev.date_mode;
+
strbuf_addstr(&out, "Squashed commit of the following:\n");
while ((commit = get_revision(&rev)) != NULL) {
strbuf_addch(&out, '\n');
strbuf_addf(&out, "commit %s\n",
sha1_to_hex(commit->object.sha1));
- pretty_print_commit(rev.commit_format, commit, &out, rev.abbrev,
- NULL, NULL, rev.date_mode, 0);
+ pretty_print_commit(rev.commit_format, commit, &out, &ctx);
}
if (write(fd, out.buf, out.len) < 0)
die_errno("Writing SQUASH_MSG");
discard_cache();
if (read_cache() < 0)
die("failed to read the cache");
+ resolve_undo_clear();
return ret;
}
}
static int count_unmerged_entries(void)
{
- const struct index_state *state = &the_index;
int i, ret = 0;
- for (i = 0; i < state->cache_nr; i++)
- if (ce_stage(state->cache[i]))
+ for (i = 0; i < active_nr; i++)
+ if (ce_stage(active_cache[i]))
ret++;
return ret;
opts.verbose_update = 1;
opts.merge = 1;
opts.fn = twoway_merge;
+ opts.msgs = get_porcelain_error_msgs();
trees[nr_trees] = parse_tree_indirect(head);
if (!trees[nr_trees++])
}
}
fclose(fp);
- rerere();
+ rerere(allow_rerere_auto);
printf("Automatic merge failed; "
"fix conflicts and then commit the result.\n");
return 1;
static struct commit *is_old_style_invocation(int argc, const char **argv)
{
struct commit *second_token = NULL;
- if (argc > 1) {
+ if (argc > 2) {
unsigned char second_sha1[20];
if (get_sha1(argv[1], second_sha1))
const char *best_strategy = NULL, *wt_strategy = NULL;
struct commit_list **remotes = &remoteheads;
- if (file_exists(git_path("MERGE_HEAD")))
- die("You have not concluded your merge. (MERGE_HEAD exists)");
- if (read_cache_unmerged())
- die("You are in the middle of a conflicted merge."
- " (index unmerged)");
+ if (read_cache_unmerged()) {
+ die_resolve_conflict("merge");
+ }
+ if (file_exists(git_path("MERGE_HEAD"))) {
+ /*
+ * There is no unmerged entry, don't advise 'git
+ * add/rm <file>', just 'git commit'.
+ */
+ if (advice_resolve_conflict)
+ die("You have not concluded your merge (MERGE_HEAD exists).\n"
+ "Please, commit your changes before you can merge.");
+ else
+ die("You have not concluded your merge (MERGE_HEAD exists).");
+ }
+ resolve_undo_clear();
/*
* Check if we are _not_ on a detached HEAD, i.e. if there is a
* current branch.
option_commit = 0;
}
+ if (!allow_fast_forward && fast_forward_only)
+ die("You cannot combine --no-ff with --ff-only.");
+
if (!argc)
usage_with_options(builtin_merge_usage,
builtin_merge_options);
* codepath so we discard the error in this
* loop.
*/
- for (i = 0; i < argc; i++)
- merge_name(argv[i], &msg);
- fmt_merge_msg(option_log, &msg, &merge_msg);
- if (merge_msg.len)
- strbuf_setlen(&merge_msg, merge_msg.len-1);
+ if (!have_message) {
+ for (i = 0; i < argc; i++)
+ merge_name(argv[i], &msg);
+ fmt_merge_msg(option_log, &msg, &merge_msg);
+ if (merge_msg.len)
+ strbuf_setlen(&merge_msg, merge_msg.len-1);
+ }
}
if (head_invalid || !argc)
hex,
find_unique_abbrev(remoteheads->item->object.sha1,
DEFAULT_ABBREV));
- strbuf_addstr(&msg, "Fast forward");
+ strbuf_addstr(&msg, "Fast-forward");
if (have_message)
strbuf_addstr(&msg,
" (no commit created; -m option ignored)");
} else if (!remoteheads->next && common->next)
;
/*
- * We are not doing octopus and not fast forward. Need
+ * We are not doing octopus and not fast-forward. Need
* a real merge.
*/
else if (!remoteheads->next && !common->next && option_commit) {
/*
- * We are not doing octopus, not fast forward, and have
+ * We are not doing octopus, not fast-forward, and have
* only one common.
*/
refresh_cache(REFRESH_QUIET);
- if (allow_trivial) {
+ if (allow_trivial && !fast_forward_only) {
/* See if it is really trivial. */
git_committer_info(IDENT_ERROR_ON_NO_NAME);
printf("Trying really trivial in-index merge...\n");
}
}
+ if (fast_forward_only)
+ die("Not possible to fast-forward, aborting.");
+
/* We are going to make a new commit. */
git_committer_info(IDENT_ERROR_ON_NO_NAME);