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Diffstat (limited to 'builtin/merge.c')
-rw-r--r--builtin/merge.c161
1 files changed, 96 insertions, 65 deletions
diff --git a/builtin/merge.c b/builtin/merge.c
index e5afe64cef..3a451727d0 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"
#include "gpg-interface.h"
#define DEFAULT_TWOHEAD (1<<0)
@@ -45,11 +46,12 @@ 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 struct strbuf merge_msg;
+static int overwrite_ignore = 1;
+static struct strbuf merge_msg = STRBUF_INIT;
static struct commit_list *remoteheads;
static struct strategy **use_strategies;
static size_t use_strategies_nr, use_strategies_alloc;
@@ -211,6 +213,7 @@ static struct option builtin_merge_options[] = {
OPT_SET_INT(0, "progress", &show_progress, "force progress reporting", 1),
{ OPTION_STRING, 'S', "gpg-sign", &sign_commit, "key id",
"GPG sign commit", PARSE_OPT_OPTARG, NULL, (intptr_t) "" },
+ OPT_BOOLEAN(0, "overwrite-ignore", &overwrite_ignore, "update ignored files (default)"),
OPT_END()
};
@@ -320,13 +323,15 @@ 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;
@@ -414,7 +419,7 @@ static void finish(struct commit *head_commit,
static void merge_name(const char *remote, struct strbuf *msg)
{
struct commit *remote_head;
- unsigned char branch_head[20], buf_sha[20];
+ unsigned char branch_head[20];
struct strbuf buf = STRBUF_INIT;
struct strbuf bname = STRBUF_INIT;
const char *ptr;
@@ -478,7 +483,7 @@ 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->object.sha1),
@@ -491,14 +496,16 @@ 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");
@@ -555,15 +562,7 @@ 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;
@@ -577,6 +576,9 @@ static int git_merge_config(const char *k, const char *v, void *cb)
return 0;
}
+ status = fmt_merge_msg_config(k, v, cb);
+ if (status)
+ return status;
status = git_gpg_config(k, v, NULL);
if (status)
return status;
@@ -774,10 +776,12 @@ 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;
@@ -852,20 +856,22 @@ 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);
@@ -912,8 +918,9 @@ static int merge_trivial(struct commit *head)
parent->next->item = remoteheads->item;
parent->next->next = NULL;
prepare_to_commit();
- commit_tree(merge_msg.buf, result_tree, parent, result_commit, NULL,
- sign_commit);
+ if (commit_tree(&merge_msg, result_tree, parent, result_commit, NULL,
+ sign_commit))
+ die(_("failed to write commit object"));
finish(head, result_commit, "In-index merge");
drop_save();
return 0;
@@ -944,8 +951,9 @@ static int finish_automerge(struct commit *head,
strbuf_addch(&merge_msg, '\n');
prepare_to_commit();
free_commit_list(remoteheads);
- commit_tree(merge_msg.buf, result_tree, parents, result_commit,
- NULL, sign_commit);
+ if (commit_tree(&merge_msg, result_tree, parents, result_commit,
+ NULL, sign_commit))
+ die(_("failed to write commit object"));
strbuf_addf(&buf, "Merge made by the '%s' strategy.", wt_strategy);
finish(head, result_commit, buf.buf);
strbuf_release(&buf);
@@ -955,13 +963,14 @@ 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];
@@ -1053,6 +1062,7 @@ 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;
@@ -1067,24 +1077,25 @@ static void write_merge_state(void)
}
strbuf_addf(&buf, "%s\n", sha1_to_hex(sha1));
}
- fd = open(git_path("MERGE_HEAD"), O_WRONLY | O_CREAT, 0666);
+ 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);
}
@@ -1096,11 +1107,12 @@ 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);
@@ -1109,7 +1121,7 @@ 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))
@@ -1123,6 +1135,8 @@ 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;
@@ -1135,7 +1149,8 @@ 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())
@@ -1174,9 +1189,12 @@ 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)
@@ -1219,7 +1237,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
read_empty(remote_head->object.sha1, 0);
update_ref("initial pull", "HEAD", remote_head->object.sha1,
NULL, 0, DIE_ON_ERR);
- return 0;
+ goto done;
} else {
struct strbuf merge_names = STRBUF_INIT;
@@ -1308,7 +1326,7 @@ 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)) {
@@ -1329,16 +1347,20 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
strbuf_addstr(&msg,
" (no commit created; -m option ignored)");
commit = remoteheads->item;
- if (!commit)
- return 1;
+ if (!commit) {
+ ret = 1;
+ goto done;
+ }
if (checkout_fast_forward(head_commit->object.sha1,
- commit->object.sha1))
- return 1;
+ commit->object.sha1)) {
+ ret = 1;
+ goto done;
+ }
finish(head_commit, commit->object.sha1, msg.buf);
drop_save();
- return 0;
+ goto done;
} else if (!remoteheads->next && common->next)
;
/*
@@ -1356,8 +1378,11 @@ 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 {
@@ -1385,7 +1410,7 @@ 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;
}
}
@@ -1467,9 +1492,11 @@ 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
@@ -1483,7 +1510,8 @@ 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 {
@@ -1499,10 +1527,13 @@ 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;
}
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