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Diffstat (limited to 'builtin/merge.c')
-rw-r--r--builtin/merge.c242
1 files changed, 139 insertions, 103 deletions
diff --git a/builtin/merge.c b/builtin/merge.c
index dffd5ec124..24579409c0 100644
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -26,6 +26,7 @@
#include "merge-recursive.h"
#include "resolve-undo.h"
#include "remote.h"
+#include "fmt-merge-msg.h"
#define DEFAULT_TWOHEAD (1<<0)
#define DEFAULT_OCTOPUS (1<<1)
@@ -44,10 +45,11 @@ static const char * const builtin_merge_usage[] = {
NULL
};
-static int show_diffstat = 1, shortlog_len, squash;
+static int show_diffstat = 1, shortlog_len = -1, squash;
static int option_commit = 1, allow_fast_forward = 1;
static int fast_forward_only, option_edit;
static int allow_trivial = 1, have_message;
+static int overwrite_ignore = 1;
static struct strbuf merge_msg;
static struct commit_list *remoteheads;
static struct strategy **use_strategies;
@@ -207,6 +209,7 @@ static struct option builtin_merge_options[] = {
OPT_BOOLEAN(0, "abort", &abort_current_merge,
"abort the current in-progress merge"),
OPT_SET_INT(0, "progress", &show_progress, "force progress reporting", 1),
+ OPT_BOOLEAN(0, "overwrite-ignore", &overwrite_ignore, "update ignored files (default)"),
OPT_END()
};
@@ -316,13 +319,15 @@ static void squash_message(struct commit *commit)
struct rev_info rev;
struct strbuf out = STRBUF_INIT;
struct commit_list *j;
+ const char *filename;
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);
+ filename = git_path("SQUASH_MSG");
+ fd = open(filename, O_WRONLY | O_CREAT, 0666);
if (fd < 0)
- die_errno(_("Could not write to '%s'"), git_path("SQUASH_MSG"));
+ die_errno(_("Could not write to '%s'"), filename);
init_revisions(&rev, NULL);
rev.ignore_merges = 1;
@@ -406,21 +411,11 @@ static void finish(struct commit *head_commit,
strbuf_release(&reflog_message);
}
-static struct object *want_commit(const char *name)
-{
- struct object *obj;
- unsigned char sha1[20];
- if (get_sha1(name, sha1))
- return NULL;
- obj = parse_object(sha1);
- return peel_to_type(name, 0, obj, OBJ_COMMIT);
-}
-
/* Get the name for the merge commit's message. */
static void merge_name(const char *remote, struct strbuf *msg)
{
- struct object *remote_head;
- unsigned char branch_head[20], buf_sha[20];
+ struct commit *remote_head;
+ unsigned char branch_head[20];
struct strbuf buf = STRBUF_INIT;
struct strbuf bname = STRBUF_INIT;
const char *ptr;
@@ -431,7 +426,7 @@ static void merge_name(const char *remote, struct strbuf *msg)
remote = bname.buf;
memset(branch_head, 0, sizeof(branch_head));
- remote_head = want_commit(remote);
+ remote_head = get_merge_parent(remote);
if (!remote_head)
die(_("'%s' does not point to a commit"), remote);
@@ -441,6 +436,11 @@ static void merge_name(const char *remote, struct strbuf *msg)
sha1_to_hex(branch_head), remote);
goto cleanup;
}
+ if (!prefixcmp(found_ref, "refs/tags/")) {
+ strbuf_addf(msg, "%s\t\ttag '%s' of .\n",
+ sha1_to_hex(branch_head), remote);
+ goto cleanup;
+ }
if (!prefixcmp(found_ref, "refs/remotes/")) {
strbuf_addf(msg, "%s\t\tremote-tracking branch '%s' of .\n",
sha1_to_hex(branch_head), remote);
@@ -479,10 +479,10 @@ static void merge_name(const char *remote, struct strbuf *msg)
strbuf_addstr(&truname, "refs/heads/");
strbuf_addstr(&truname, remote);
strbuf_setlen(&truname, truname.len - len);
- if (resolve_ref(truname.buf, buf_sha, 1, NULL)) {
+ if (ref_exists(truname.buf)) {
strbuf_addf(msg,
"%s\t\tbranch '%s'%s of .\n",
- sha1_to_hex(remote_head->sha1),
+ sha1_to_hex(remote_head->object.sha1),
truname.buf + 11,
(early ? " (early part)" : ""));
strbuf_release(&truname);
@@ -492,14 +492,16 @@ static void merge_name(const char *remote, struct strbuf *msg)
if (!strcmp(remote, "FETCH_HEAD") &&
!access(git_path("FETCH_HEAD"), R_OK)) {
+ const char *filename;
FILE *fp;
struct strbuf line = STRBUF_INIT;
char *ptr;
- fp = fopen(git_path("FETCH_HEAD"), "r");
+ filename = git_path("FETCH_HEAD");
+ fp = fopen(filename, "r");
if (!fp)
die_errno(_("could not open '%s' for reading"),
- git_path("FETCH_HEAD"));
+ filename);
strbuf_getline(&line, fp, '\n');
fclose(fp);
ptr = strstr(line.buf, "\tnot-for-merge\t");
@@ -510,7 +512,7 @@ static void merge_name(const char *remote, struct strbuf *msg)
goto cleanup;
}
strbuf_addf(msg, "%s\t\tcommit '%s'\n",
- sha1_to_hex(remote_head->sha1), remote);
+ sha1_to_hex(remote_head->object.sha1), remote);
cleanup:
strbuf_release(&buf);
strbuf_release(&bname);
@@ -538,6 +540,8 @@ static void parse_branch_merge_options(char *bmo)
static int git_merge_config(const char *k, const char *v, void *cb)
{
+ int status;
+
if (branch && !prefixcmp(k, "branch.") &&
!prefixcmp(k + 7, branch) &&
!strcmp(k + 7 + strlen(branch), ".mergeoptions")) {
@@ -554,15 +558,7 @@ static int git_merge_config(const char *k, const char *v, void *cb)
return git_config_string(&pull_octopus, k, v);
else if (!strcmp(k, "merge.renormalize"))
option_renormalize = git_config_bool(k, v);
- else if (!strcmp(k, "merge.log") || !strcmp(k, "merge.summary")) {
- int is_bool;
- shortlog_len = git_config_bool_or_int(k, v, &is_bool);
- if (!is_bool && shortlog_len < 0)
- return error(_("%s: negative length %s"), k, v);
- if (is_bool && shortlog_len)
- shortlog_len = DEFAULT_MERGE_LOG_LEN;
- return 0;
- } else if (!strcmp(k, "merge.ff")) {
+ else if (!strcmp(k, "merge.ff")) {
int boolval = git_config_maybe_bool(k, v);
if (0 <= boolval) {
allow_fast_forward = boolval;
@@ -575,6 +571,9 @@ static int git_merge_config(const char *k, const char *v, void *cb)
default_to_upstream = git_config_bool(k, v);
return 0;
}
+ status = fmt_merge_msg_config(k, v, cb);
+ if (status)
+ return status;
return git_diff_ui_config(k, v, cb);
}
@@ -714,7 +713,7 @@ static int try_merge_strategy(const char *strategy, struct commit_list *common,
die(_("Unknown option for merge-recursive: -X%s"), xopts[x]);
o.branch1 = head_arg;
- o.branch2 = remoteheads->item->util;
+ o.branch2 = merge_remote_util(remoteheads->item)->name;
for (j = common; j; j = j->next)
commit_list_insert(j->item, &reversed);
@@ -769,10 +768,12 @@ int checkout_fast_forward(const unsigned char *head, const unsigned char *remote
memset(&trees, 0, sizeof(trees));
memset(&opts, 0, sizeof(opts));
memset(&t, 0, sizeof(t));
- memset(&dir, 0, sizeof(dir));
- dir.flags |= DIR_SHOW_IGNORED;
- dir.exclude_per_dir = ".gitignore";
- opts.dir = &dir;
+ if (overwrite_ignore) {
+ memset(&dir, 0, sizeof(dir));
+ dir.flags |= DIR_SHOW_IGNORED;
+ setup_standard_excludes(&dir);
+ opts.dir = &dir;
+ }
opts.head_idx = 1;
opts.src_index = &the_index;
@@ -847,20 +848,22 @@ static void add_strategies(const char *string, unsigned attr)
static void write_merge_msg(struct strbuf *msg)
{
- int fd = open(git_path("MERGE_MSG"), O_WRONLY | O_CREAT, 0666);
+ const char *filename = git_path("MERGE_MSG");
+ int fd = open(filename, O_WRONLY | O_CREAT, 0666);
if (fd < 0)
die_errno(_("Could not open '%s' for writing"),
- git_path("MERGE_MSG"));
+ filename);
if (write_in_full(fd, msg->buf, msg->len) != msg->len)
- die_errno(_("Could not write to '%s'"), git_path("MERGE_MSG"));
+ die_errno(_("Could not write to '%s'"), filename);
close(fd);
}
static void read_merge_msg(struct strbuf *msg)
{
+ const char *filename = git_path("MERGE_MSG");
strbuf_reset(msg);
- if (strbuf_read_file(msg, git_path("MERGE_MSG"), 0) < 0)
- die_errno(_("Could not read from '%s'"), git_path("MERGE_MSG"));
+ if (strbuf_read_file(msg, filename, 0) < 0)
+ die_errno(_("Could not read from '%s'"), filename);
}
static void write_merge_state(void);
@@ -948,13 +951,14 @@ static int finish_automerge(struct commit *head,
static int suggest_conflicts(int renormalizing)
{
+ const char *filename;
FILE *fp;
int pos;
- fp = fopen(git_path("MERGE_MSG"), "a");
+ filename = git_path("MERGE_MSG");
+ fp = fopen(filename, "a");
if (!fp)
- die_errno(_("Could not open '%s' for writing"),
- git_path("MERGE_MSG"));
+ die_errno(_("Could not open '%s' for writing"), filename);
fprintf(fp, "\nConflicts:\n");
for (pos = 0; pos < active_nr; pos++) {
struct cache_entry *ce = active_cache[pos];
@@ -1046,31 +1050,40 @@ static int setup_with_upstream(const char ***argv)
static void write_merge_state(void)
{
+ const char *filename;
int fd;
struct commit_list *j;
struct strbuf buf = STRBUF_INIT;
- for (j = remoteheads; j; j = j->next)
- strbuf_addf(&buf, "%s\n",
- sha1_to_hex(j->item->object.sha1));
- fd = open(git_path("MERGE_HEAD"), O_WRONLY | O_CREAT, 0666);
+ for (j = remoteheads; j; j = j->next) {
+ unsigned const char *sha1;
+ struct commit *c = j->item;
+ if (c->util && merge_remote_util(c)->obj) {
+ sha1 = merge_remote_util(c)->obj->sha1;
+ } else {
+ sha1 = c->object.sha1;
+ }
+ strbuf_addf(&buf, "%s\n", sha1_to_hex(sha1));
+ }
+ filename = git_path("MERGE_HEAD");
+ fd = open(filename, O_WRONLY | O_CREAT, 0666);
if (fd < 0)
- die_errno(_("Could not open '%s' for writing"),
- git_path("MERGE_HEAD"));
+ die_errno(_("Could not open '%s' for writing"), filename);
if (write_in_full(fd, buf.buf, buf.len) != buf.len)
- die_errno(_("Could not write to '%s'"), git_path("MERGE_HEAD"));
+ die_errno(_("Could not write to '%s'"), filename);
close(fd);
strbuf_addch(&merge_msg, '\n');
write_merge_msg(&merge_msg);
- fd = open(git_path("MERGE_MODE"), O_WRONLY | O_CREAT | O_TRUNC, 0666);
+
+ filename = git_path("MERGE_MODE");
+ fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666);
if (fd < 0)
- die_errno(_("Could not open '%s' for writing"),
- git_path("MERGE_MODE"));
+ die_errno(_("Could not open '%s' for writing"), filename);
strbuf_reset(&buf);
if (!allow_fast_forward)
strbuf_addf(&buf, "no-ff");
if (write_in_full(fd, buf.buf, buf.len) != buf.len)
- die_errno(_("Could not write to '%s'"), git_path("MERGE_MODE"));
+ die_errno(_("Could not write to '%s'"), filename);
close(fd);
}
@@ -1082,11 +1095,12 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
struct commit *head_commit;
struct strbuf buf = STRBUF_INIT;
const char *head_arg;
- int flag, i;
+ int flag, i, ret = 0;
int best_cnt = -1, merge_was_ok = 0, automerge_was_ok = 0;
struct commit_list *common = NULL;
const char *best_strategy = NULL, *wt_strategy = NULL;
struct commit_list **remotes = &remoteheads;
+ void *branch_to_free;
if (argc == 2 && !strcmp(argv[1], "-h"))
usage_with_options(builtin_merge_usage, builtin_merge_options);
@@ -1095,7 +1109,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
* Check if we are _not_ on a detached HEAD, i.e. if there is a
* current branch.
*/
- branch = resolve_ref("HEAD", head_sha1, 0, &flag);
+ branch = branch_to_free = resolve_refdup("HEAD", head_sha1, 0, &flag);
if (branch && !prefixcmp(branch, "refs/heads/"))
branch += 11;
if (!branch || is_null_sha1(head_sha1))
@@ -1109,6 +1123,8 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
parse_branch_merge_options(branch_mergeoptions);
argc = parse_options(argc, argv, prefix, builtin_merge_options,
builtin_merge_usage, 0);
+ if (shortlog_len < 0)
+ shortlog_len = (merge_log_config > 0) ? merge_log_config : 0;
if (verbosity < 0 && show_progress == -1)
show_progress = 0;
@@ -1121,7 +1137,8 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
die(_("There is no merge to abort (MERGE_HEAD missing)."));
/* Invoke 'git reset --merge' */
- return cmd_reset(nargc, nargv, prefix);
+ ret = cmd_reset(nargc, nargv, prefix);
+ goto done;
}
if (read_cache_unmerged())
@@ -1160,9 +1177,12 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
die(_("You cannot combine --no-ff with --ff-only."));
if (!abort_current_merge) {
- if (!argc && default_to_upstream)
- argc = setup_with_upstream(&argv);
- else if (argc == 1 && !strcmp(argv[0], "-"))
+ if (!argc) {
+ if (default_to_upstream)
+ argc = setup_with_upstream(&argv);
+ else
+ die(_("No commit specified and merge.defaultToUpstream not set."));
+ } else if (argc == 1 && !strcmp(argv[0], "-"))
argv[0] = "@{-1}";
}
if (!argc)
@@ -1185,7 +1205,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
argv += 2;
argc -= 2;
} else if (!head_commit) {
- struct object *remote_head;
+ struct commit *remote_head;
/*
* If the merged head is a valid one there is no reason
* to forbid "git merge" into a branch yet to be born.
@@ -1199,13 +1219,13 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
if (!allow_fast_forward)
die(_("Non-fast-forward commit does not make sense into "
"an empty head"));
- remote_head = want_commit(argv[0]);
+ remote_head = get_merge_parent(argv[0]);
if (!remote_head)
die(_("%s - not something we can merge"), argv[0]);
- read_empty(remote_head->sha1, 0);
- update_ref("initial pull", "HEAD", remote_head->sha1, NULL, 0,
- DIE_ON_ERR);
- return 0;
+ read_empty(remote_head->object.sha1, 0);
+ update_ref("initial pull", "HEAD", remote_head->object.sha1,
+ NULL, 0, DIE_ON_ERR);
+ goto done;
} else {
struct strbuf merge_names = STRBUF_INIT;
@@ -1213,19 +1233,20 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
head_arg = "HEAD";
/*
- * All the rest are the commits being merged;
- * prepare the standard merge summary message to
- * be appended to the given message. If remote
- * is invalid we will die later in the common
- * codepath so we discard the error in this
- * loop.
+ * All the rest are the commits being merged; prepare
+ * the standard merge summary message to be appended
+ * to the given message.
*/
for (i = 0; i < argc; i++)
merge_name(argv[i], &merge_names);
if (!have_message || shortlog_len) {
- fmt_merge_msg(&merge_names, &merge_msg, !have_message,
- shortlog_len);
+ struct fmt_merge_msg_opts opts;
+ memset(&opts, 0, sizeof(opts));
+ opts.add_title = !have_message;
+ opts.shortlog_len = shortlog_len;
+
+ fmt_merge_msg(&merge_names, &merge_msg, &opts);
if (merge_msg.len)
strbuf_setlen(&merge_msg, merge_msg.len - 1);
}
@@ -1242,19 +1263,20 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
strbuf_reset(&buf);
for (i = 0; i < argc; i++) {
- struct object *o;
- struct commit *commit;
-
- o = want_commit(argv[i]);
- if (!o)
+ struct commit *commit = get_merge_parent(argv[i]);
+ if (!commit)
die(_("%s - not something we can merge"), argv[i]);
- commit = lookup_commit(o->sha1);
- commit->util = (void *)argv[i];
remotes = &commit_list_insert(commit, remotes)->next;
-
- strbuf_addf(&buf, "GITHEAD_%s", sha1_to_hex(o->sha1));
+ strbuf_addf(&buf, "GITHEAD_%s",
+ sha1_to_hex(commit->object.sha1));
setenv(buf.buf, argv[i], 1);
strbuf_reset(&buf);
+ if (merge_remote_util(commit) &&
+ merge_remote_util(commit)->obj &&
+ merge_remote_util(commit)->obj->type == OBJ_TAG) {
+ option_edit = 1;
+ allow_fast_forward = 0;
+ }
}
if (!use_strategies) {
@@ -1292,13 +1314,13 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
* but first the most common case of merging one remote.
*/
finish_up_to_date("Already up-to-date.");
- return 0;
+ goto done;
} else if (allow_fast_forward && !remoteheads->next &&
!common->next &&
!hashcmp(common->item->object.sha1, head_commit->object.sha1)) {
/* Again the most common case of merging one remote. */
struct strbuf msg = STRBUF_INIT;
- struct object *o;
+ struct commit *commit;
char hex[41];
strcpy(hex, find_unique_abbrev(head_commit->object.sha1, DEFAULT_ABBREV));
@@ -1312,16 +1334,21 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
if (have_message)
strbuf_addstr(&msg,
" (no commit created; -m option ignored)");
- o = want_commit(sha1_to_hex(remoteheads->item->object.sha1));
- if (!o)
- return 1;
+ commit = remoteheads->item;
+ if (!commit) {
+ ret = 1;
+ goto done;
+ }
- if (checkout_fast_forward(head_commit->object.sha1, remoteheads->item->object.sha1))
- return 1;
+ if (checkout_fast_forward(head_commit->object.sha1,
+ commit->object.sha1)) {
+ ret = 1;
+ goto done;
+ }
- finish(head_commit, o->sha1, msg.buf);
+ finish(head_commit, commit->object.sha1, msg.buf);
drop_save();
- return 0;
+ goto done;
} else if (!remoteheads->next && common->next)
;
/*
@@ -1339,8 +1366,11 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
git_committer_info(IDENT_ERROR_ON_NO_NAME);
printf(_("Trying really trivial in-index merge...\n"));
if (!read_tree_trivial(common->item->object.sha1,
- head_commit->object.sha1, remoteheads->item->object.sha1))
- return merge_trivial(head_commit);
+ head_commit->object.sha1,
+ remoteheads->item->object.sha1)) {
+ ret = merge_trivial(head_commit);
+ goto done;
+ }
printf(_("Nope.\n"));
}
} else {
@@ -1368,7 +1398,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
}
if (up_to_date) {
finish_up_to_date("Already up-to-date. Yeeah!");
- return 0;
+ goto done;
}
}
@@ -1450,9 +1480,11 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
* If we have a resulting tree, that means the strategy module
* auto resolved the merge cleanly.
*/
- if (automerge_was_ok)
- return finish_automerge(head_commit, common, result_tree,
- wt_strategy);
+ if (automerge_was_ok) {
+ ret = finish_automerge(head_commit, common, result_tree,
+ wt_strategy);
+ goto done;
+ }
/*
* Pick the result from the best strategy and have the user fix
@@ -1466,7 +1498,8 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
else
fprintf(stderr, _("Merge with strategy %s failed.\n"),
use_strategies[0]->name);
- return 2;
+ ret = 2;
+ goto done;
} else if (best_strategy == wt_strategy)
; /* We already have its result in the working tree. */
else {
@@ -1482,10 +1515,13 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
else
write_merge_state();
- if (merge_was_ok) {
+ if (merge_was_ok)
fprintf(stderr, _("Automatic merge went well; "
"stopped before committing as requested\n"));
- return 0;
- } else
- return suggest_conflicts(option_renormalize);
+ else
+ ret = suggest_conflicts(option_renormalize);
+
+done:
+ free(branch_to_free);
+ return ret;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 21:35:15 +0000