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-rw-r--r--builtin/apply.c99
-rw-r--r--builtin/commit-tree.c70
-rw-r--r--builtin/commit.c21
-rw-r--r--builtin/for-each-ref.c3
-rw-r--r--builtin/log.c46
-rw-r--r--builtin/ls-remote.c11
-rw-r--r--builtin/merge.c81
-rw-r--r--builtin/reflog.c96
-rw-r--r--builtin/revert.c179
9 files changed, 321 insertions, 285 deletions
diff --git a/builtin/apply.c b/builtin/apply.c
index 771c972c55..8fc5ec31de 100644
--- a/builtin/apply.c
+++ b/builtin/apply.c
@@ -1854,6 +1854,8 @@ static int match_fragment(struct image *img,
{
int i;
char *fixed_buf, *buf, *orig, *target;
+ struct strbuf fixed;
+ size_t fixed_len;
int preimage_limit;
if (preimage->nr + try_lno <= img->nr) {
@@ -1864,13 +1866,13 @@ static int match_fragment(struct image *img,
if (match_end && (preimage->nr + try_lno != img->nr))
return 0;
} else if (ws_error_action == correct_ws_error &&
- (ws_rule & WS_BLANK_AT_EOF) && match_end) {
+ (ws_rule & WS_BLANK_AT_EOF)) {
/*
- * This hunk that matches at the end extends beyond
- * the end of img, and we are removing blank lines
- * at the end of the file. This many lines from the
- * beginning of the preimage must match with img, and
- * the remainder of the preimage must be blank.
+ * This hunk extends beyond the end of img, and we are
+ * removing blank lines at the end of the file. This
+ * many lines from the beginning of the preimage must
+ * match with img, and the remainder of the preimage
+ * must be blank.
*/
preimage_limit = img->nr - try_lno;
} else {
@@ -1977,12 +1979,12 @@ static int match_fragment(struct image *img,
* use the whitespace from the preimage.
*/
extra_chars = preimage_end - preimage_eof;
- fixed_buf = xmalloc(imgoff + extra_chars);
- memcpy(fixed_buf, img->buf + try, imgoff);
- memcpy(fixed_buf + imgoff, preimage_eof, extra_chars);
- imgoff += extra_chars;
+ strbuf_init(&fixed, imgoff + extra_chars);
+ strbuf_add(&fixed, img->buf + try, imgoff);
+ strbuf_add(&fixed, preimage_eof, extra_chars);
+ fixed_buf = strbuf_detach(&fixed, &fixed_len);
update_pre_post_images(preimage, postimage,
- fixed_buf, imgoff, postlen);
+ fixed_buf, fixed_len, postlen);
return 1;
}
@@ -1999,27 +2001,22 @@ static int match_fragment(struct image *img,
* but in this loop we will only handle the part of the
* preimage that falls within the file.
*/
- fixed_buf = xmalloc(preimage->len + 1);
- buf = fixed_buf;
+ strbuf_init(&fixed, preimage->len + 1);
orig = preimage->buf;
target = img->buf + try;
for (i = 0; i < preimage_limit; i++) {
- size_t fixlen; /* length after fixing the preimage */
size_t oldlen = preimage->line[i].len;
size_t tgtlen = img->line[try_lno + i].len;
- size_t tgtfixlen; /* length after fixing the target line */
- char tgtfixbuf[1024], *tgtfix;
+ size_t fixstart = fixed.len;
+ struct strbuf tgtfix;
int match;
/* Try fixing the line in the preimage */
- fixlen = ws_fix_copy(buf, orig, oldlen, ws_rule, NULL);
+ ws_fix_copy(&fixed, orig, oldlen, ws_rule, NULL);
/* Try fixing the line in the target */
- if (sizeof(tgtfixbuf) > tgtlen)
- tgtfix = tgtfixbuf;
- else
- tgtfix = xmalloc(tgtlen);
- tgtfixlen = ws_fix_copy(tgtfix, target, tgtlen, ws_rule, NULL);
+ strbuf_init(&tgtfix, tgtlen);
+ ws_fix_copy(&tgtfix, target, tgtlen, ws_rule, NULL);
/*
* If they match, either the preimage was based on
@@ -2031,15 +2028,15 @@ static int match_fragment(struct image *img,
* so we might as well take the fix together with their
* real change.
*/
- match = (tgtfixlen == fixlen && !memcmp(tgtfix, buf, fixlen));
+ match = (tgtfix.len == fixed.len - fixstart &&
+ !memcmp(tgtfix.buf, fixed.buf + fixstart,
+ fixed.len - fixstart));
- if (tgtfix != tgtfixbuf)
- free(tgtfix);
+ strbuf_release(&tgtfix);
if (!match)
goto unmatch_exit;
orig += oldlen;
- buf += fixlen;
target += tgtlen;
}
@@ -2051,19 +2048,18 @@ static int match_fragment(struct image *img,
* false).
*/
for ( ; i < preimage->nr; i++) {
- size_t fixlen; /* length after fixing the preimage */
+ size_t fixstart = fixed.len; /* start of the fixed preimage */
size_t oldlen = preimage->line[i].len;
int j;
/* Try fixing the line in the preimage */
- fixlen = ws_fix_copy(buf, orig, oldlen, ws_rule, NULL);
+ ws_fix_copy(&fixed, orig, oldlen, ws_rule, NULL);
- for (j = 0; j < fixlen; j++)
- if (!isspace(buf[j]))
+ for (j = fixstart; j < fixed.len; j++)
+ if (!isspace(fixed.buf[j]))
goto unmatch_exit;
orig += oldlen;
- buf += fixlen;
}
/*
@@ -2071,12 +2067,13 @@ static int match_fragment(struct image *img,
* has whitespace breakages unfixed, and fixing them makes the
* hunk match. Update the context lines in the postimage.
*/
+ fixed_buf = strbuf_detach(&fixed, &fixed_len);
update_pre_post_images(preimage, postimage,
- fixed_buf, buf - fixed_buf, 0);
+ fixed_buf, fixed_len, 0);
return 1;
unmatch_exit:
- free(fixed_buf);
+ strbuf_release(&fixed);
return 0;
}
@@ -2244,7 +2241,8 @@ static int apply_one_fragment(struct image *img, struct fragment *frag,
int match_beginning, match_end;
const char *patch = frag->patch;
int size = frag->size;
- char *old, *new, *oldlines, *newlines;
+ char *old, *oldlines;
+ struct strbuf newlines;
int new_blank_lines_at_end = 0;
unsigned long leading, trailing;
int pos, applied_pos;
@@ -2254,16 +2252,16 @@ static int apply_one_fragment(struct image *img, struct fragment *frag,
memset(&preimage, 0, sizeof(preimage));
memset(&postimage, 0, sizeof(postimage));
oldlines = xmalloc(size);
- newlines = xmalloc(size);
+ strbuf_init(&newlines, size);
old = oldlines;
- new = newlines;
while (size > 0) {
char first;
int len = linelen(patch, size);
- int plen, added;
+ int plen;
int added_blank_line = 0;
int is_blank_context = 0;
+ size_t start;
if (!len)
break;
@@ -2293,7 +2291,7 @@ static int apply_one_fragment(struct image *img, struct fragment *frag,
/* ... followed by '\No newline'; nothing */
break;
*old++ = '\n';
- *new++ = '\n';
+ strbuf_addch(&newlines, '\n');
add_line_info(&preimage, "\n", 1, LINE_COMMON);
add_line_info(&postimage, "\n", 1, LINE_COMMON);
is_blank_context = 1;
@@ -2315,18 +2313,17 @@ static int apply_one_fragment(struct image *img, struct fragment *frag,
if (first == '+' && no_add)
break;
+ start = newlines.len;
if (first != '+' ||
!whitespace_error ||
ws_error_action != correct_ws_error) {
- memcpy(new, patch + 1, plen);
- added = plen;
+ strbuf_add(&newlines, patch + 1, plen);
}
else {
- added = ws_fix_copy(new, patch + 1, plen, ws_rule, &applied_after_fixing_ws);
+ ws_fix_copy(&newlines, patch + 1, plen, ws_rule, &applied_after_fixing_ws);
}
- add_line_info(&postimage, new, added,
+ add_line_info(&postimage, newlines.buf + start, newlines.len - start,
(first == '+' ? 0 : LINE_COMMON));
- new += added;
if (first == '+' &&
(ws_rule & WS_BLANK_AT_EOF) &&
ws_blank_line(patch + 1, plen, ws_rule))
@@ -2351,9 +2348,9 @@ static int apply_one_fragment(struct image *img, struct fragment *frag,
}
if (inaccurate_eof &&
old > oldlines && old[-1] == '\n' &&
- new > newlines && new[-1] == '\n') {
+ newlines.len > 0 && newlines.buf[newlines.len - 1] == '\n') {
old--;
- new--;
+ strbuf_setlen(&newlines, newlines.len - 1);
}
leading = frag->leading;
@@ -2385,8 +2382,8 @@ static int apply_one_fragment(struct image *img, struct fragment *frag,
pos = frag->newpos ? (frag->newpos - 1) : 0;
preimage.buf = oldlines;
preimage.len = old - oldlines;
- postimage.buf = newlines;
- postimage.len = new - newlines;
+ postimage.buf = newlines.buf;
+ postimage.len = newlines.len;
preimage.line = preimage.line_allocated;
postimage.line = postimage.line_allocated;
@@ -2462,7 +2459,7 @@ static int apply_one_fragment(struct image *img, struct fragment *frag,
}
free(oldlines);
- free(newlines);
+ strbuf_release(&newlines);
free(preimage.line_allocated);
free(postimage.line_allocated);
@@ -3141,11 +3138,7 @@ static void remove_file(struct patch *patch, int rmdir_empty)
die("unable to remove %s from index", patch->old_name);
}
if (!cached) {
- if (S_ISGITLINK(patch->old_mode)) {
- if (rmdir(patch->old_name))
- warning("unable to remove submodule %s",
- patch->old_name);
- } else if (!unlink_or_warn(patch->old_name) && rmdir_empty) {
+ if (!remove_or_warn(patch->old_mode, patch->old_name) && rmdir_empty) {
remove_path(patch->old_name);
}
}
diff --git a/builtin/commit-tree.c b/builtin/commit-tree.c
index 90dac349a3..87f0591c2f 100644
--- a/builtin/commit-tree.c
+++ b/builtin/commit-tree.c
@@ -9,19 +9,6 @@
#include "builtin.h"
#include "utf8.h"
-/*
- * FIXME! Share the code with "write-tree.c"
- */
-static void check_valid(unsigned char *sha1, enum object_type expect)
-{
- enum object_type type = sha1_object_info(sha1, NULL);
- if (type < 0)
- die("%s is not a valid object", sha1_to_hex(sha1));
- if (type != expect)
- die("%s is not a valid '%s' object", sha1_to_hex(sha1),
- typename(expect));
-}
-
static const char commit_tree_usage[] = "git commit-tree <sha1> [-p <sha1>]* < changelog";
static void new_parent(struct commit *parent, struct commit_list **parents_p)
@@ -38,61 +25,6 @@ static void new_parent(struct commit *parent, struct commit_list **parents_p)
commit_list_insert(parent, parents_p);
}
-static const char commit_utf8_warn[] =
-"Warning: commit message does not conform to UTF-8.\n"
-"You may want to amend it after fixing the message, or set the config\n"
-"variable i18n.commitencoding to the encoding your project uses.\n";
-
-int commit_tree(const char *msg, unsigned char *tree,
- struct commit_list *parents, unsigned char *ret,
- const char *author)
-{
- int result;
- int encoding_is_utf8;
- struct strbuf buffer;
-
- check_valid(tree, OBJ_TREE);
-
- /* Not having i18n.commitencoding is the same as having utf-8 */
- encoding_is_utf8 = is_encoding_utf8(git_commit_encoding);
-
- strbuf_init(&buffer, 8192); /* should avoid reallocs for the headers */
- strbuf_addf(&buffer, "tree %s\n", sha1_to_hex(tree));
-
- /*
- * NOTE! This ordering means that the same exact tree merged with a
- * different order of parents will be a _different_ changeset even
- * if everything else stays the same.
- */
- while (parents) {
- struct commit_list *next = parents->next;
- strbuf_addf(&buffer, "parent %s\n",
- sha1_to_hex(parents->item->object.sha1));
- free(parents);
- parents = next;
- }
-
- /* Person/date information */
- if (!author)
- author = git_author_info(IDENT_ERROR_ON_NO_NAME);
- strbuf_addf(&buffer, "author %s\n", author);
- strbuf_addf(&buffer, "committer %s\n", git_committer_info(IDENT_ERROR_ON_NO_NAME));
- if (!encoding_is_utf8)
- strbuf_addf(&buffer, "encoding %s\n", git_commit_encoding);
- strbuf_addch(&buffer, '\n');
-
- /* And add the comment */
- strbuf_addstr(&buffer, msg);
-
- /* And check the encoding */
- if (encoding_is_utf8 && !is_utf8(buffer.buf))
- fprintf(stderr, commit_utf8_warn);
-
- result = write_sha1_file(buffer.buf, buffer.len, commit_type, ret);
- strbuf_release(&buffer);
- return result;
-}
-
int cmd_commit_tree(int argc, const char **argv, const char *prefix)
{
int i;
@@ -117,7 +49,7 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix)
if (get_sha1(b, sha1))
die("Not a valid object name %s", b);
- check_valid(sha1, OBJ_COMMIT);
+ assert_sha1_type(sha1, OBJ_COMMIT);
new_parent(lookup_commit(sha1), &parents);
}
diff --git a/builtin/commit.c b/builtin/commit.c
index c5ab683d5b..017b8a5536 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -66,7 +66,7 @@ static char *edit_message, *use_message;
static char *author_name, *author_email, *author_date;
static int all, edit_flag, also, interactive, only, amend, signoff;
static int quiet, verbose, no_verify, allow_empty, dry_run, renew_authorship;
-static int no_post_rewrite;
+static int no_post_rewrite, allow_empty_message;
static char *untracked_files_arg, *force_date;
/*
* The default commit message cleanup mode will remove the lines
@@ -140,9 +140,15 @@ static struct option builtin_commit_options[] = {
OPT_BOOLEAN(0, "amend", &amend, "amend previous commit"),
OPT_BOOLEAN(0, "no-post-rewrite", &no_post_rewrite, "bypass post-rewrite hook"),
{ OPTION_STRING, 'u', "untracked-files", &untracked_files_arg, "mode", "show untracked files, optional modes: all, normal, no. (Default: all)", PARSE_OPT_OPTARG, NULL, (intptr_t)"all" },
- OPT_BOOLEAN(0, "allow-empty", &allow_empty, "ok to record an empty change"),
/* end commit contents options */
+ { OPTION_BOOLEAN, 0, "allow-empty", &allow_empty, NULL,
+ "ok to record an empty change",
+ PARSE_OPT_NOARG | PARSE_OPT_HIDDEN },
+ { OPTION_BOOLEAN, 0, "allow-empty-message", &allow_empty_message, NULL,
+ "ok to record a change with an empty message",
+ PARSE_OPT_NOARG | PARSE_OPT_HIDDEN },
+
OPT_END()
};
@@ -1017,6 +1023,7 @@ static int git_status_config(const char *k, const char *v, void *cb)
int cmd_status(int argc, const char **argv, const char *prefix)
{
struct wt_status s;
+ int fd;
unsigned char sha1[20];
static struct option builtin_status_options[] = {
OPT__VERBOSE(&verbose),
@@ -1050,6 +1057,14 @@ int cmd_status(int argc, const char **argv, const char *prefix)
read_cache_preload(s.pathspec);
refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, s.pathspec, NULL, NULL);
+
+ fd = hold_locked_index(&index_lock, 0);
+ if (0 <= fd) {
+ if (!write_cache(fd, active_cache, active_nr))
+ commit_locked_index(&index_lock);
+ rollback_lock_file(&index_lock);
+ }
+
s.is_initial = get_sha1(s.reference, sha1) ? 1 : 0;
s.in_merge = in_merge;
wt_status_collect(&s);
@@ -1293,7 +1308,7 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
if (cleanup_mode != CLEANUP_NONE)
stripspace(&sb, cleanup_mode == CLEANUP_ALL);
- if (message_is_empty(&sb)) {
+ if (message_is_empty(&sb) && !allow_empty_message) {
rollback_index_files();
fprintf(stderr, "Aborting commit due to empty commit message.\n");
exit(1);
diff --git a/builtin/for-each-ref.c b/builtin/for-each-ref.c
index 62be1bbfd6..3a97953177 100644
--- a/builtin/for-each-ref.c
+++ b/builtin/for-each-ref.c
@@ -227,6 +227,9 @@ static void grab_common_values(struct atom_value *val, int deref, struct object
strcpy(s, sha1_to_hex(obj->sha1));
v->s = s;
}
+ else if (!strcmp(name, "objectname:short")) {
+ v->s = find_unique_abbrev(obj->sha1, DEFAULT_ABBREV);
+ }
}
}
diff --git a/builtin/log.c b/builtin/log.c
index 6208703c06..976e16f9f2 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -24,6 +24,7 @@
static const char *default_date_mode = NULL;
static int default_show_root = 1;
+static int decoration_style;
static const char *fmt_patch_subject_prefix = "PATCH";
static const char *fmt_pretty;
@@ -31,11 +32,28 @@ static const char * const builtin_log_usage =
"git log [<options>] [<since>..<until>] [[--] <path>...]\n"
" or: git show [options] <object>...";
+static int parse_decoration_style(const char *var, const char *value)
+{
+ switch (git_config_maybe_bool(var, value)) {
+ case 1:
+ return DECORATE_SHORT_REFS;
+ case 0:
+ return 0;
+ default:
+ break;
+ }
+ if (!strcmp(value, "full"))
+ return DECORATE_FULL_REFS;
+ else if (!strcmp(value, "short"))
+ return DECORATE_SHORT_REFS;
+ return -1;
+}
+
static void cmd_log_init(int argc, const char **argv, const char *prefix,
struct rev_info *rev, struct setup_revision_opt *opt)
{
int i;
- int decoration_style = 0;
+ int decoration_given = 0;
struct userformat_want w;
rev->abbrev = DEFAULT_ABBREV;
@@ -78,14 +96,15 @@ static void cmd_log_init(int argc, const char **argv, const char *prefix,
const char *arg = argv[i];
if (!strcmp(arg, "--decorate")) {
decoration_style = DECORATE_SHORT_REFS;
+ decoration_given = 1;
} else if (!prefixcmp(arg, "--decorate=")) {
const char *v = skip_prefix(arg, "--decorate=");
- if (!strcmp(v, "full"))
- decoration_style = DECORATE_FULL_REFS;
- else if (!strcmp(v, "short"))
- decoration_style = DECORATE_SHORT_REFS;
- else
+ decoration_style = parse_decoration_style(arg, v);
+ if (decoration_style < 0)
die("invalid --decorate option: %s", arg);
+ decoration_given = 1;
+ } else if (!strcmp(arg, "--no-decorate")) {
+ decoration_style = 0;
} else if (!strcmp(arg, "--source")) {
rev->show_source = 1;
} else if (!strcmp(arg, "-h")) {
@@ -93,6 +112,15 @@ static void cmd_log_init(int argc, const char **argv, const char *prefix,
} else
die("unrecognized argument: %s", arg);
}
+
+ /*
+ * defeat log.decorate configuration interacting with --pretty=raw
+ * from the command line.
+ */
+ if (!decoration_given && rev->pretty_given
+ && rev->commit_format == CMIT_FMT_RAW)
+ decoration_style = 0;
+
if (decoration_style) {
rev->show_decorations = 1;
load_ref_decorations(decoration_style);
@@ -258,6 +286,12 @@ static int git_log_config(const char *var, const char *value, void *cb)
return git_config_string(&fmt_patch_subject_prefix, var, value);
if (!strcmp(var, "log.date"))
return git_config_string(&default_date_mode, var, value);
+ if (!strcmp(var, "log.decorate")) {
+ decoration_style = parse_decoration_style(var, value);
+ if (decoration_style < 0)
+ decoration_style = 0; /* maybe warn? */
+ return 0;
+ }
if (!strcmp(var, "log.showroot")) {
default_show_root = git_config_bool(var, value);
return 0;
diff --git a/builtin/ls-remote.c b/builtin/ls-remote.c
index 70f5622d9d..8ee91eb547 100644
--- a/builtin/ls-remote.c
+++ b/builtin/ls-remote.c
@@ -4,7 +4,8 @@
#include "remote.h"
static const char ls_remote_usage[] =
-"git ls-remote [--heads] [--tags] [-u <exec> | --upload-pack <exec>] <repository> <refs>...";
+"git ls-remote [--heads] [--tags] [-u <exec> | --upload-pack <exec>]\n"
+" [<repository> [<refs>...]]";
/*
* Is there one among the list of patterns that match the tail part
@@ -73,9 +74,6 @@ int cmd_ls_remote(int argc, const char **argv, const char *prefix)
break;
}
- if (!dest)
- usage(ls_remote_usage);
-
if (argv[i]) {
int j;
pattern = xcalloc(sizeof(const char *), argc - i + 1);
@@ -87,6 +85,11 @@ int cmd_ls_remote(int argc, const char **argv, const char *prefix)
}
}
remote = remote_get(dest);
+ if (!remote) {
+ if (dest)
+ die("bad repository '%s'", dest);
+ die("No remote configured to list refs from.");
+ }
if (!remote->url_nr)
die("remote %s has no configured URL", dest);
transport = transport_get(remote, NULL);
diff --git a/builtin/merge.c b/builtin/merge.c
index c043066845..37d414b3ba 100644
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -548,13 +548,53 @@ static void write_tree_trivial(unsigned char *sha1)
die("git write-tree failed to write a tree");
}
-static int try_merge_strategy(const char *strategy, struct commit_list *common,
- const char *head_arg)
+int try_merge_command(const char *strategy, struct commit_list *common,
+ const char *head_arg, struct commit_list *remotes)
{
const char **args;
int i = 0, x = 0, ret;
struct commit_list *j;
struct strbuf buf = STRBUF_INIT;
+
+ args = xmalloc((4 + xopts_nr + commit_list_count(common) +
+ commit_list_count(remotes)) * sizeof(char *));
+ strbuf_addf(&buf, "merge-%s", strategy);
+ args[i++] = buf.buf;
+ for (x = 0; x < xopts_nr; x++) {
+ char *s = xmalloc(strlen(xopts[x])+2+1);
+ strcpy(s, "--");
+ strcpy(s+2, xopts[x]);
+ args[i++] = s;
+ }
+ for (j = common; j; j = j->next)
+ args[i++] = xstrdup(sha1_to_hex(j->item->object.sha1));
+ args[i++] = "--";
+ args[i++] = head_arg;
+ for (j = remotes; j; j = j->next)
+ args[i++] = xstrdup(sha1_to_hex(j->item->object.sha1));
+ args[i] = NULL;
+ ret = run_command_v_opt(args, RUN_GIT_CMD);
+ strbuf_release(&buf);
+ i = 1;
+ for (x = 0; x < xopts_nr; x++)
+ free((void *)args[i++]);
+ for (j = common; j; j = j->next)
+ free((void *)args[i++]);
+ i += 2;
+ for (j = remotes; j; j = j->next)
+ free((void *)args[i++]);
+ free(args);
+ discard_cache();
+ if (read_cache() < 0)
+ die("failed to read the cache");
+ resolve_undo_clear();
+
+ return ret;
+}
+
+static int try_merge_strategy(const char *strategy, struct commit_list *common,
+ const char *head_arg)
+{
int index_fd;
struct lock_file *lock = xcalloc(1, sizeof(struct lock_file));
@@ -567,12 +607,13 @@ static int try_merge_strategy(const char *strategy, struct commit_list *common,
rollback_lock_file(lock);
if (!strcmp(strategy, "recursive") || !strcmp(strategy, "subtree")) {
- int clean;
+ int clean, x;
struct commit *result;
struct lock_file *lock = xcalloc(1, sizeof(struct lock_file));
int index_fd;
struct commit_list *reversed = NULL;
struct merge_options o;
+ struct commit_list *j;
if (remoteheads->next) {
error("Not handling anything other than two heads merge.");
@@ -612,39 +653,7 @@ static int try_merge_strategy(const char *strategy, struct commit_list *common,
rollback_lock_file(lock);
return clean ? 0 : 1;
} else {
- args = xmalloc((4 + xopts_nr + commit_list_count(common) +
- commit_list_count(remoteheads)) * sizeof(char *));
- strbuf_addf(&buf, "merge-%s", strategy);
- args[i++] = buf.buf;
- for (x = 0; x < xopts_nr; x++) {
- char *s = xmalloc(strlen(xopts[x])+2+1);
- strcpy(s, "--");
- strcpy(s+2, xopts[x]);
- args[i++] = s;
- }
- for (j = common; j; j = j->next)
- args[i++] = xstrdup(sha1_to_hex(j->item->object.sha1));
- args[i++] = "--";
- args[i++] = head_arg;
- for (j = remoteheads; j; j = j->next)
- args[i++] = xstrdup(sha1_to_hex(j->item->object.sha1));
- args[i] = NULL;
- ret = run_command_v_opt(args, RUN_GIT_CMD);
- strbuf_release(&buf);
- i = 1;
- for (x = 0; x < xopts_nr; x++)
- free((void *)args[i++]);
- for (j = common; j; j = j->next)
- free((void *)args[i++]);
- i += 2;
- for (j = remoteheads; j; j = j->next)
- free((void *)args[i++]);
- free(args);
- discard_cache();
- if (read_cache() < 0)
- die("failed to read the cache");
- resolve_undo_clear();
- return ret;
+ return try_merge_command(strategy, common, head_arg, remoteheads);
}
}
diff --git a/builtin/reflog.c b/builtin/reflog.c
index bd7880dc04..f73215686d 100644
--- a/builtin/reflog.c
+++ b/builtin/reflog.c
@@ -36,6 +36,8 @@ struct expire_reflog_cb {
FILE *newlog;
const char *ref;
struct commit *ref_commit;
+ struct commit_list *mark_list;
+ unsigned long mark_limit;
struct cmd_reflog_expire_cb *cmd;
unsigned char last_kept_sha1[20];
};
@@ -210,46 +212,23 @@ static int keep_entry(struct commit **it, unsigned char *sha1)
return 1;
}
-static int unreachable(struct expire_reflog_cb *cb, struct commit *commit, unsigned char *sha1)
+/*
+ * Starting from commits in the cb->mark_list, mark commits that are
+ * reachable from them. Stop the traversal at commits older than
+ * the expire_limit and queue them back, so that the caller can call
+ * us again to restart the traversal with longer expire_limit.
+ */
+static void mark_reachable(struct expire_reflog_cb *cb)
{
- /*
- * We may or may not have the commit yet - if not, look it
- * up using the supplied sha1.
- */
- if (!commit) {
- if (is_null_sha1(sha1))
- return 0;
-
- commit = lookup_commit_reference_gently(sha1, 1);
-
- /* Not a commit -- keep it */
- if (!commit)
- return 0;
- }
-
- /* Reachable from the current ref? Don't prune. */
- if (commit->object.flags & REACHABLE)
- return 0;
- if (in_merge_bases(commit, &cb->ref_commit, 1))
- return 0;
-
- /* We can't reach it - prune it. */
- return 1;
-}
+ struct commit *commit;
+ struct commit_list *pending;
+ unsigned long expire_limit = cb->mark_limit;
+ struct commit_list *leftover = NULL;
-static void mark_reachable(struct commit *commit, unsigned long expire_limit)
-{
- /*
- * We need to compute whether the commit on either side of a reflog
- * entry is reachable from the tip of the ref for all entries.
- * Mark commits that are reachable from the tip down to the
- * time threshold first; we know a commit marked thusly is
- * reachable from the tip without running in_merge_bases()
- * at all.
- */
- struct commit_list *pending = NULL;
+ for (pending = cb->mark_list; pending; pending = pending->next)
+ pending->item->object.flags &= ~REACHABLE;
- commit_list_insert(commit, &pending);
+ pending = cb->mark_list;
while (pending) {
struct commit_list *entry = pending;
struct commit_list *parent;
@@ -261,8 +240,11 @@ static void mark_reachable(struct commit *commit, unsigned long expire_limit)
if (parse_commit(commit))
continue;
commit->object.flags |= REACHABLE;
- if (commit->date < expire_limit)
+ if (commit->date < expire_limit) {
+ commit_list_insert(commit, &leftover);
continue;
+ }
+ commit->object.flags |= REACHABLE;
parent = commit->parents;
while (parent) {
commit = parent->item;
@@ -272,6 +254,36 @@ static void mark_reachable(struct commit *commit, unsigned long expire_limit)
commit_list_insert(commit, &pending);
}
}
+ cb->mark_list = leftover;
+}
+
+static int unreachable(struct expire_reflog_cb *cb, struct commit *commit, unsigned char *sha1)
+{
+ /*
+ * We may or may not have the commit yet - if not, look it
+ * up using the supplied sha1.
+ */
+ if (!commit) {
+ if (is_null_sha1(sha1))
+ return 0;
+
+ commit = lookup_commit_reference_gently(sha1, 1);
+
+ /* Not a commit -- keep it */
+ if (!commit)
+ return 0;
+ }
+
+ /* Reachable from the current ref? Don't prune. */
+ if (commit->object.flags & REACHABLE)
+ return 0;
+
+ if (cb->mark_list && cb->mark_limit) {
+ cb->mark_limit = 0; /* dig down to the root */
+ mark_reachable(cb);
+ }
+
+ return !(commit->object.flags & REACHABLE);
}
static int expire_reflog_ent(unsigned char *osha1, unsigned char *nsha1,
@@ -348,8 +360,12 @@ static int expire_reflog(const char *ref, const unsigned char *sha1, int unused,
cb.ref_commit = lookup_commit_reference_gently(sha1, 1);
cb.ref = ref;
cb.cmd = cmd;
- if (cb.ref_commit)
- mark_reachable(cb.ref_commit, cmd->expire_total);
+ if (cb.ref_commit) {
+ cb.mark_list = NULL;
+ commit_list_insert(cb.ref_commit, &cb.mark_list);
+ cb.mark_limit = cmd->expire_total;
+ mark_reachable(&cb);
+ }
for_each_reflog_ent(ref, expire_reflog_ent, &cb);
if (cb.ref_commit)
clear_commit_marks(cb.ref_commit, REACHABLE);
diff --git a/builtin/revert.c b/builtin/revert.c
index 7d68ef714e..7976b5a329 100644
--- a/builtin/revert.c
+++ b/builtin/revert.c
@@ -43,6 +43,7 @@ static const char *commit_name;
static int allow_rerere_auto;
static const char *me;
+static const char *strategy;
#define GIT_REFLOG_ACTION "GIT_REFLOG_ACTION"
@@ -62,6 +63,7 @@ static void parse_args(int argc, const char **argv)
OPT_BOOLEAN('s', "signoff", &signoff, "add Signed-off-by:"),
OPT_INTEGER('m', "mainline", &mainline, "parent number"),
OPT_RERERE_AUTOUPDATE(&allow_rerere_auto),
+ OPT_STRING(0, "strategy", &strategy, "strategy", "merge strategy"),
OPT_END(),
OPT_END(),
OPT_END(),
@@ -174,28 +176,17 @@ static char *get_encoding(const char *message)
return NULL;
}
-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_errno ("Could not write to MERGE_MSG");
-}
-
-static void add_message_to_msg(const char *message)
+static void add_message_to_msg(struct strbuf *msgbuf, const char *message)
{
const char *p = message;
while (*p && (*p != '\n' || p[1] != '\n'))
p++;
if (!*p)
- add_to_msg(sha1_to_hex(commit->object.sha1));
+ strbuf_addstr(msgbuf, sha1_to_hex(commit->object.sha1));
p += 2;
- add_to_msg(p);
- return;
+ strbuf_addstr(msgbuf, p);
}
static void set_author_ident_env(const char *message)
@@ -271,6 +262,19 @@ static char *help_msg(const char *name)
return strbuf_detach(&helpbuf, NULL);
}
+static void write_message(struct strbuf *msgbuf, const char *filename)
+{
+ static struct lock_file msg_file;
+
+ int msg_fd = hold_lock_file_for_update(&msg_file, filename,
+ LOCK_DIE_ON_ERROR);
+ if (write_in_full(msg_fd, msgbuf->buf, msgbuf->len) < 0)
+ die_errno("Could not write to %s.", filename);
+ strbuf_release(msgbuf);
+ if (commit_lock_file(&msg_file) < 0)
+ die("Error wrapping up %s", filename);
+}
+
static struct tree *empty_tree(void)
{
struct tree *tree = xcalloc(1, sizeof(struct tree));
@@ -305,17 +309,70 @@ static int fast_forward_to(const unsigned char *to, const unsigned char *from)
return write_ref_sha1(ref_lock, to, "cherry-pick");
}
+static void do_recursive_merge(struct commit *base, struct commit *next,
+ const char *base_label, const char *next_label,
+ unsigned char *head, struct strbuf *msgbuf,
+ char *defmsg)
+{
+ struct merge_options o;
+ struct tree *result, *next_tree, *base_tree, *head_tree;
+ int clean, index_fd;
+ static struct lock_file index_lock;
+
+ index_fd = hold_locked_index(&index_lock, 1);
+
+ read_cache();
+ init_merge_options(&o);
+ o.ancestor = base ? base_label : "(empty tree)";
+ o.branch1 = "HEAD";
+ o.branch2 = next ? next_label : "(empty tree)";
+
+ head_tree = parse_tree_indirect(head);
+ next_tree = next ? next->tree : empty_tree();
+ base_tree = base ? base->tree : empty_tree();
+
+ clean = merge_trees(&o,
+ head_tree,
+ next_tree, base_tree, &result);
+
+ if (active_cache_changed &&
+ (write_cache(index_fd, active_cache, active_nr) ||
+ commit_locked_index(&index_lock)))
+ die("%s: Unable to write new index file", me);
+ rollback_lock_file(&index_lock);
+
+ if (!clean) {
+ int i;
+ strbuf_addstr(msgbuf, "\nConflicts:\n\n");
+ for (i = 0; i < active_nr;) {
+ struct cache_entry *ce = active_cache[i++];
+ if (ce_stage(ce)) {
+ strbuf_addch(msgbuf, '\t');
+ strbuf_addstr(msgbuf, ce->name);
+ strbuf_addch(msgbuf, '\n');
+ while (i < active_nr && !strcmp(ce->name,
+ active_cache[i]->name))
+ i++;
+ }
+ }
+ write_message(msgbuf, defmsg);
+ fprintf(stderr, "Automatic %s failed.%s\n",
+ me, help_msg(commit_name));
+ rerere(allow_rerere_auto);
+ exit(1);
+ }
+ write_message(msgbuf, defmsg);
+ fprintf(stderr, "Finished one %s.\n", me);
+}
+
static int revert_or_cherry_pick(int argc, const char **argv)
{
unsigned char head[20];
struct commit *base, *next, *parent;
const char *base_label, *next_label;
- int i, index_fd, clean;
struct commit_message msg = { NULL, NULL, NULL, NULL, NULL };
char *defmsg = NULL;
- struct merge_options o;
- struct tree *result, *next_tree, *base_tree, *head_tree;
- static struct lock_file index_lock;
+ struct strbuf msgbuf = STRBUF_INIT;
git_config(git_default_config, NULL);
me = action == REVERT ? "revert" : "cherry-pick";
@@ -403,83 +460,57 @@ static int revert_or_cherry_pick(int argc, const char **argv)
*/
defmsg = git_pathdup("MERGE_MSG");
- msg_fd = hold_lock_file_for_update(&msg_file, defmsg,
- LOCK_DIE_ON_ERROR);
-
- index_fd = hold_locked_index(&index_lock, 1);
if (action == REVERT) {
base = commit;
base_label = msg.label;
next = parent;
next_label = msg.parent_label;
- add_to_msg("Revert \"");
- add_to_msg(msg.subject);
- add_to_msg("\"\n\nThis reverts commit ");
- add_to_msg(sha1_to_hex(commit->object.sha1));
+ strbuf_addstr(&msgbuf, "Revert \"");
+ strbuf_addstr(&msgbuf, msg.subject);
+ strbuf_addstr(&msgbuf, "\"\n\nThis reverts commit ");
+ strbuf_addstr(&msgbuf, sha1_to_hex(commit->object.sha1));
if (commit->parents->next) {
- add_to_msg(", reversing\nchanges made to ");
- add_to_msg(sha1_to_hex(parent->object.sha1));
+ strbuf_addstr(&msgbuf, ", reversing\nchanges made to ");
+ strbuf_addstr(&msgbuf, sha1_to_hex(parent->object.sha1));
}
- add_to_msg(".\n");
+ strbuf_addstr(&msgbuf, ".\n");
} else {
base = parent;
base_label = msg.parent_label;
next = commit;
next_label = msg.label;
set_author_ident_env(msg.message);
- add_message_to_msg(msg.message);
+ add_message_to_msg(&msgbuf, msg.message);
if (no_replay) {
- add_to_msg("(cherry picked from commit ");
- add_to_msg(sha1_to_hex(commit->object.sha1));
- add_to_msg(")\n");
+ strbuf_addstr(&msgbuf, "(cherry picked from commit ");
+ strbuf_addstr(&msgbuf, sha1_to_hex(commit->object.sha1));
+ strbuf_addstr(&msgbuf, ")\n");
}
}
- read_cache();
- init_merge_options(&o);
- o.ancestor = base ? base_label : "(empty tree)";
- o.branch1 = "HEAD";
- o.branch2 = next ? next_label : "(empty tree)";
-
- head_tree = parse_tree_indirect(head);
- next_tree = next ? next->tree : empty_tree();
- base_tree = base ? base->tree : empty_tree();
-
- clean = merge_trees(&o,
- head_tree,
- next_tree, base_tree, &result);
-
- if (active_cache_changed &&
- (write_cache(index_fd, active_cache, active_nr) ||
- commit_locked_index(&index_lock)))
- die("%s: Unable to write new index file", me);
- rollback_lock_file(&index_lock);
-
- if (!clean) {
- add_to_msg("\nConflicts:\n\n");
- for (i = 0; i < active_nr;) {
- struct cache_entry *ce = active_cache[i++];
- if (ce_stage(ce)) {
- add_to_msg("\t");
- add_to_msg(ce->name);
- add_to_msg("\n");
- while (i < active_nr && !strcmp(ce->name,
- active_cache[i]->name))
- i++;
- }
+ if (!strategy || !strcmp(strategy, "recursive") || action == REVERT)
+ do_recursive_merge(base, next, base_label, next_label,
+ head, &msgbuf, defmsg);
+ else {
+ int res;
+ struct commit_list *common = NULL;
+ struct commit_list *remotes = NULL;
+ write_message(&msgbuf, defmsg);
+ commit_list_insert(base, &common);
+ commit_list_insert(next, &remotes);
+ res = try_merge_command(strategy, common,
+ sha1_to_hex(head), remotes);
+ free_commit_list(common);
+ free_commit_list(remotes);
+ if (res) {
+ fprintf(stderr, "Automatic %s with strategy %s failed.%s\n",
+ me, strategy, help_msg(commit_name));
+ rerere(allow_rerere_auto);
+ exit(1);
}
- if (commit_lock_file(&msg_file) < 0)
- die ("Error wrapping up %s", defmsg);
- fprintf(stderr, "Automatic %s failed.%s\n",
- me, help_msg(commit_name));
- rerere(allow_rerere_auto);
- exit(1);
}
- if (commit_lock_file(&msg_file) < 0)
- die ("Error wrapping up %s", defmsg);
- fprintf(stderr, "Finished one %s.\n", me);
/*
*
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-13 21:57:34 +0000