#include "object.h"
#include "commit.h"
#include "tag.h"
-#include "wt-status.h"
#include "run-command.h"
#include "exec_cmd.h"
#include "utf8.h"
static int allow_rerere_auto;
static const char *me;
+
+/* Merge strategy. */
static const char *strategy;
+static const char **xopts;
+static size_t xopts_nr, xopts_alloc;
#define GIT_REFLOG_ACTION "GIT_REFLOG_ACTION"
static char *get_encoding(const char *message);
+static const char * const *revert_or_cherry_pick_usage(void)
+{
+ return action == REVERT ? revert_usage : cherry_pick_usage;
+}
+
+static int option_parse_x(const struct option *opt,
+ const char *arg, int unset)
+{
+ if (unset)
+ return 0;
+
+ ALLOC_GROW(xopts, xopts_nr + 1, xopts_alloc);
+ xopts[xopts_nr++] = xstrdup(arg);
+ return 0;
+}
+
static void parse_args(int argc, const char **argv)
{
- const char * const * usage_str =
- action == REVERT ? revert_usage : cherry_pick_usage;
+ const char * const * usage_str = revert_or_cherry_pick_usage();
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('r', NULL, &noop, "no-op (backward compatibility)"),
+ { OPTION_BOOLEAN, 'r', NULL, &noop, NULL, "no-op (backward compatibility)",
+ PARSE_OPT_NOARG | PARSE_OPT_HIDDEN, NULL, 0 },
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_CALLBACK('X', "strategy-option", &xopts, "option",
+ "option for merge strategy", option_parse_x),
OPT_END(),
OPT_END(),
OPT_END(),
OPT_END(),
};
if (parse_options_concat(options, ARRAY_SIZE(options), cp_extra))
- die("program error");
+ die(_("program error"));
}
- commit_argc = parse_options(argc, argv, NULL, options, usage_str, 0);
- if (commit_argc < 1)
+ commit_argc = parse_options(argc, argv, NULL, options, usage_str,
+ PARSE_OPT_KEEP_ARGV0 |
+ PARSE_OPT_KEEP_UNKNOWN);
+ if (commit_argc < 2)
usage_with_options(usage_str, options);
commit_argv = argv;
static int get_message(const char *raw_message, struct commit_message *out)
{
const char *encoding;
- const char *p, *abbrev, *eol;
+ const char *abbrev, *subject;
+ int abbrev_len, subject_len;
char *q;
- int abbrev_len, oneline_len;
if (!raw_message)
return -1;
abbrev = find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV);
abbrev_len = strlen(abbrev);
- /* Find beginning and end of commit subject. */
- p = out->message;
- while (*p && (*p != '\n' || p[1] != '\n'))
- p++;
- if (*p) {
- p += 2;
- for (eol = p + 1; *eol && *eol != '\n'; eol++)
- ; /* do nothing */
- } else
- eol = p;
- oneline_len = eol - p;
+ subject_len = find_commit_subject(out->message, &subject);
out->parent_label = xmalloc(strlen("parent of ") + abbrev_len +
- strlen("... ") + oneline_len + 1);
+ strlen("... ") + subject_len + 1);
q = out->parent_label;
q = mempcpy(q, "parent of ", strlen("parent of "));
out->label = q;
q = mempcpy(q, abbrev, abbrev_len);
q = mempcpy(q, "... ", strlen("... "));
out->subject = q;
- q = mempcpy(q, p, oneline_len);
+ q = mempcpy(q, subject, subject_len);
*q = '\0';
return 0;
}
const char *p = message, *eol;
if (!p)
- die ("Could not read commit message of %s",
+ die (_("Could not read commit message of %s"),
sha1_to_hex(commit->object.sha1));
while (*p && *p != '\n') {
for (eol = p + 1; *eol && *eol != '\n'; eol++)
strbuf_addstr(msgbuf, p);
}
-static void set_author_ident_env(const char *message)
+static void write_cherry_pick_head(void)
{
- const char *p = message;
- if (!p)
- die ("Could not read commit message of %s",
- sha1_to_hex(commit->object.sha1));
- while (*p && *p != '\n') {
- const char *eol;
-
- for (eol = p; *eol && *eol != '\n'; eol++)
- ; /* do nothing */
- if (!prefixcmp(p, "author ")) {
- char *line, *pend, *email, *timestamp;
-
- p += 7;
- line = xmemdupz(p, eol - p);
- email = strchr(line, '<');
- if (!email)
- die ("Could not extract author email from %s",
- sha1_to_hex(commit->object.sha1));
- if (email == line)
- pend = line;
- else
- for (pend = email; pend != line + 1 &&
- isspace(pend[-1]); pend--);
- ; /* do nothing */
- *pend = '\0';
- email++;
- timestamp = strchr(email, '>');
- if (!timestamp)
- die ("Could not extract author time from %s",
- sha1_to_hex(commit->object.sha1));
- *timestamp = '\0';
- for (timestamp++; *timestamp && isspace(*timestamp);
- timestamp++)
- ; /* do nothing */
- setenv("GIT_AUTHOR_NAME", line, 1);
- setenv("GIT_AUTHOR_EMAIL", email, 1);
- setenv("GIT_AUTHOR_DATE", timestamp, 1);
- free(line);
- return;
- }
- p = eol;
- if (*p == '\n')
- p++;
- }
- die ("No author information found in %s",
- sha1_to_hex(commit->object.sha1));
+ int fd;
+ struct strbuf buf = STRBUF_INIT;
+
+ strbuf_addf(&buf, "%s\n", sha1_to_hex(commit->object.sha1));
+
+ fd = open(git_path("CHERRY_PICK_HEAD"), O_WRONLY | O_CREAT, 0666);
+ if (fd < 0)
+ die_errno(_("Could not open '%s' for writing"),
+ git_path("CHERRY_PICK_HEAD"));
+ if (write_in_full(fd, buf.buf, buf.len) != buf.len || close(fd))
+ die_errno(_("Could not write to '%s'"), git_path("CHERRY_PICK_HEAD"));
+ strbuf_release(&buf);
}
-static char *help_msg(void)
+static void advise(const char *advice, ...)
{
- struct strbuf helpbuf = STRBUF_INIT;
- char *msg = getenv("GIT_CHERRY_PICK_HELP");
+ va_list params;
- if (msg)
- return msg;
+ va_start(params, advice);
+ vreportf("hint: ", advice, params);
+ va_end(params);
+}
- strbuf_addstr(&helpbuf, " After resolving the conflicts,\n"
- "mark the corrected paths with 'git add <paths>' or 'git rm <paths>'\n"
- "and commit the result");
+static void print_advice(void)
+{
+ char *msg = getenv("GIT_CHERRY_PICK_HELP");
- if (action == CHERRY_PICK) {
- strbuf_addf(&helpbuf, " with: \n"
- "\n"
- " git commit -c %s\n",
- sha1_to_hex(commit->object.sha1));
+ if (msg) {
+ fprintf(stderr, "%s\n", msg);
+ /*
+ * A conflict has occured but the porcelain
+ * (typically rebase --interactive) wants to take care
+ * of the commit itself so remove CHERRY_PICK_HEAD
+ */
+ unlink(git_path("CHERRY_PICK_HEAD"));
+ return;
}
- else
- strbuf_addch(&helpbuf, '.');
- return strbuf_detach(&helpbuf, NULL);
+
+ advise("after resolving the conflicts, mark the corrected paths");
+ advise("with 'git add <paths>' or 'git rm <paths>'");
+ advise("and commit the result with 'git commit'");
}
static void write_message(struct strbuf *msgbuf, const char *filename)
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);
+ die_errno(_("Could not write to %s."), filename);
strbuf_release(msgbuf);
if (commit_lock_file(&msg_file) < 0)
- die("Error wrapping up %s", filename);
+ die(_("Error wrapping up %s"), filename);
}
static struct tree *empty_tree(void)
{
- struct tree *tree = xcalloc(1, sizeof(struct tree));
-
- tree->object.parsed = 1;
- tree->object.type = OBJ_TREE;
- pretend_sha1_file(NULL, 0, OBJ_TREE, tree->object.sha1);
- return tree;
+ return lookup_tree((const unsigned char *)EMPTY_TREE_SHA1_BIN);
}
static NORETURN void die_dirty_index(const char *me)
if (read_cache_unmerged()) {
die_resolve_conflict(me);
} else {
- if (advice_commit_before_merge)
- die("Your local changes would be overwritten by %s.\n"
- "Please, commit your changes or stash them to proceed.", me);
- else
- die("Your local changes would be overwritten by %s.\n", me);
+ if (advice_commit_before_merge) {
+ if (action == REVERT)
+ die(_("Your local changes would be overwritten by revert.\n"
+ "Please, commit your changes or stash them to proceed."));
+ else
+ die(_("Your local changes would be overwritten by cherry-pick.\n"
+ "Please, commit your changes or stash them to proceed."));
+ } else {
+ if (action == REVERT)
+ die(_("Your local changes would be overwritten by revert.\n"));
+ else
+ die(_("Your local changes would be overwritten by cherry-pick.\n"));
+ }
}
}
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)
+static int do_recursive_merge(struct commit *base, struct commit *next,
+ const char *base_label, const char *next_label,
+ unsigned char *head, struct strbuf *msgbuf)
{
struct merge_options o;
struct tree *result, *next_tree, *base_tree, *head_tree;
int clean, index_fd;
+ const char **xopt;
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";
next_tree = next ? next->tree : empty_tree();
base_tree = base ? base->tree : empty_tree();
+ for (xopt = xopts; xopt != xopts + xopts_nr; xopt++)
+ parse_merge_opt(&o, *xopt);
+
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);
+ /* TRANSLATORS: %s will be "revert" or "cherry-pick" */
+ die(_("%s: Unable to write new index file"), me);
rollback_lock_file(&index_lock);
if (!clean) {
i++;
}
}
- write_message(msgbuf, defmsg);
- fprintf(stderr, "Automatic %s failed.%s\n",
- me, help_msg());
- rerere(allow_rerere_auto);
- exit(1);
}
- write_message(msgbuf, defmsg);
- fprintf(stderr, "Finished one %s.\n", me);
+
+ return !clean;
+}
+
+/*
+ * If we are cherry-pick, and if the merge did not result in
+ * hand-editing, we will hit this commit and inherit the original
+ * author date and name.
+ * If we are revert, or if our cherry-pick results in a hand merge,
+ * we had better say that the current user is responsible for that.
+ */
+static int run_git_commit(const char *defmsg)
+{
+ /* 6 is max possible length of our args array including NULL */
+ const char *args[6];
+ int i = 0;
+
+ args[i++] = "commit";
+ args[i++] = "-n";
+ if (signoff)
+ args[i++] = "-s";
+ if (!edit) {
+ args[i++] = "-F";
+ args[i++] = defmsg;
+ }
+ args[i] = NULL;
+
+ return run_command_v_opt(args, RUN_GIT_CMD);
}
static int do_pick_commit(void)
struct commit_message msg = { NULL, NULL, NULL, NULL, NULL };
char *defmsg = NULL;
struct strbuf msgbuf = STRBUF_INIT;
+ int res;
if (no_commit) {
/*
* to work on.
*/
if (write_cache_as_tree(head, 0, NULL))
- die ("Your index file is unmerged.");
+ die (_("Your index file is unmerged."));
} else {
if (get_sha1("HEAD", head))
- die ("You do not have a valid HEAD");
+ die (_("You do not have a valid HEAD"));
if (index_differs_from("HEAD", 0))
die_dirty_index(me);
}
discard_cache();
if (!commit->parents) {
- if (action == REVERT)
- die ("Cannot revert a root commit");
parent = NULL;
}
else if (commit->parents->next) {
struct commit_list *p;
if (!mainline)
- die("Commit %s is a merge but no -m option was given.",
+ die(_("Commit %s is a merge but no -m option was given."),
sha1_to_hex(commit->object.sha1));
for (cnt = 1, p = commit->parents;
cnt++)
p = p->next;
if (cnt != mainline || !p)
- die("Commit %s does not have parent %d",
+ die(_("Commit %s does not have parent %d"),
sha1_to_hex(commit->object.sha1), mainline);
parent = p->item;
} else if (0 < mainline)
- die("Mainline was specified but commit %s is not a merge.",
+ die(_("Mainline was specified but commit %s is not a merge."),
sha1_to_hex(commit->object.sha1));
else
parent = commit->parents->item;
- if (allow_ff && !hashcmp(parent->object.sha1, head))
+ if (allow_ff && parent && !hashcmp(parent->object.sha1, head))
return fast_forward_to(commit->object.sha1, head);
if (parent && parse_commit(parent) < 0)
- die("%s: cannot parse parent commit %s",
+ /* TRANSLATORS: The first %s will be "revert" or
+ "cherry-pick", the second %s a SHA1 */
+ die(_("%s: cannot parse parent commit %s"),
me, sha1_to_hex(parent->object.sha1));
if (get_message(commit->buffer, &msg) != 0)
- die("Cannot get commit message for %s",
+ die(_("Cannot get commit message for %s"),
sha1_to_hex(commit->object.sha1));
/*
strbuf_addstr(&msgbuf, "\"\n\nThis reverts commit ");
strbuf_addstr(&msgbuf, sha1_to_hex(commit->object.sha1));
- if (commit->parents->next) {
+ if (commit->parents && commit->parents->next) {
strbuf_addstr(&msgbuf, ", reversing\nchanges made to ");
strbuf_addstr(&msgbuf, sha1_to_hex(parent->object.sha1));
}
base_label = msg.parent_label;
next = commit;
next_label = msg.label;
- set_author_ident_env(msg.message);
add_message_to_msg(&msgbuf, msg.message);
if (no_replay) {
strbuf_addstr(&msgbuf, "(cherry picked from commit ");
strbuf_addstr(&msgbuf, sha1_to_hex(commit->object.sha1));
strbuf_addstr(&msgbuf, ")\n");
}
+ if (!no_commit)
+ write_cherry_pick_head();
}
- if (!strategy || !strcmp(strategy, "recursive") || action == REVERT)
- do_recursive_merge(base, next, base_label, next_label,
- head, &msgbuf, defmsg);
- else {
- int res;
+ if (!strategy || !strcmp(strategy, "recursive") || action == REVERT) {
+ res = do_recursive_merge(base, next, base_label, next_label,
+ head, &msgbuf);
+ write_message(&msgbuf, defmsg);
+ } else {
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,
+ res = try_merge_command(strategy, xopts_nr, xopts, 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());
- rerere(allow_rerere_auto);
- exit(1);
- }
}
- free_message(&msg);
-
- /*
- *
- * If we are cherry-pick, and if the merge did not result in
- * hand-editing, we will hit this commit and inherit the original
- * author date and name.
- * If we are revert, or if our cherry-pick results in a hand merge,
- * we had better say that the current user is responsible for that.
- */
-
- if (!no_commit) {
- /* 6 is max possible length of our args array including NULL */
- const char *args[6];
- int res;
- int i = 0;
-
- args[i++] = "commit";
- args[i++] = "-n";
- if (signoff)
- args[i++] = "-s";
- if (!edit) {
- args[i++] = "-F";
- args[i++] = defmsg;
- }
- args[i] = NULL;
- res = run_command_v_opt(args, RUN_GIT_CMD);
- free(defmsg);
-
- return res;
+ if (res) {
+ error(action == REVERT
+ ? _("could not revert %s... %s")
+ : _("could not apply %s... %s"),
+ find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV),
+ msg.subject);
+ print_advice();
+ rerere(allow_rerere_auto);
+ } else {
+ if (!no_commit)
+ res = run_git_commit(defmsg);
}
+ free_message(&msg);
free(defmsg);
- return 0;
+ return res;
}
static void prepare_revs(struct rev_info *revs)
{
- int argc = 0;
- int i;
- const char **argv = xmalloc((commit_argc + 4) * sizeof(*argv));
+ int argc;
- argv[argc++] = NULL;
- argv[argc++] = "--no-walk";
+ init_revisions(revs, NULL);
+ revs->no_walk = 1;
if (action != REVERT)
- argv[argc++] = "--reverse";
- for (i = 0; i < commit_argc; i++)
- argv[argc++] = commit_argv[i];
- argv[argc++] = NULL;
+ revs->reverse = 1;
+
+ argc = setup_revisions(commit_argc, commit_argv, revs, NULL);
+ if (argc > 1)
+ usage(*revert_or_cherry_pick_usage());
- init_revisions(revs, NULL);
- setup_revisions(argc - 1, argv, revs, NULL);
if (prepare_revision_walk(revs))
- die("revision walk setup failed");
+ die(_("revision walk setup failed"));
if (!revs->commits)
- die("empty commit set passed");
+ die(_("empty commit set passed"));
+}
- free(argv);
+static void read_and_refresh_cache(const char *me)
+{
+ static struct lock_file index_lock;
+ int index_fd = hold_locked_index(&index_lock, 0);
+ if (read_index_preload(&the_index, NULL) < 0)
+ die(_("git %s: failed to read the index"), me);
+ refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, NULL, NULL, NULL);
+ if (the_index.cache_changed) {
+ if (write_index(&the_index, index_fd) ||
+ commit_locked_index(&index_lock))
+ die(_("git %s: failed to refresh the index"), me);
+ }
+ rollback_lock_file(&index_lock);
}
static int revert_or_cherry_pick(int argc, const char **argv)
if (allow_ff) {
if (signoff)
- die("cherry-pick --ff cannot be used with --signoff");
+ die(_("cherry-pick --ff cannot be used with --signoff"));
if (no_commit)
- die("cherry-pick --ff cannot be used with --no-commit");
+ die(_("cherry-pick --ff cannot be used with --no-commit"));
if (no_replay)
- die("cherry-pick --ff cannot be used with -x");
+ die(_("cherry-pick --ff cannot be used with -x"));
if (edit)
- die("cherry-pick --ff cannot be used with --edit");
+ die(_("cherry-pick --ff cannot be used with --edit"));
}
- if (read_cache() < 0)
- die("git %s: failed to read the index", me);
+ read_and_refresh_cache(me);
prepare_revs(&revs);
#include "attr.h"
#include "merge-recursive.h"
#include "dir.h"
+#include "submodule.h"
static struct tree *shift_tree_object(struct tree *one, struct tree *two,
const char *subtree_shift)
return a && b && hashcmp(a, b) == 0;
}
+enum rename_type {
+ RENAME_NORMAL = 0,
+ RENAME_DELETE,
+ RENAME_ONE_FILE_TO_TWO
+};
+
+struct rename_df_conflict_info {
+ enum rename_type rename_type;
+ struct diff_filepair *pair1;
+ struct diff_filepair *pair2;
+ const char *branch1;
+ const char *branch2;
+ struct stage_data *dst_entry1;
+ struct stage_data *dst_entry2;
+};
+
/*
* Since we want to write the index eventually, we cannot reuse the index
* for these (temporary) data.
*/
-struct stage_data
-{
- struct
- {
+struct stage_data {
+ struct {
unsigned mode;
unsigned char sha[20];
} stages[4];
+ struct rename_df_conflict_info *rename_df_conflict_info;
unsigned processed:1;
};
+static inline void setup_rename_df_conflict_info(enum rename_type rename_type,
+ struct diff_filepair *pair1,
+ struct diff_filepair *pair2,
+ const char *branch1,
+ const char *branch2,
+ struct stage_data *dst_entry1,
+ struct stage_data *dst_entry2)
+{
+ struct rename_df_conflict_info *ci = xcalloc(1, sizeof(struct rename_df_conflict_info));
+ ci->rename_type = rename_type;
+ ci->pair1 = pair1;
+ ci->branch1 = branch1;
+ ci->branch2 = branch2;
+
+ ci->dst_entry1 = dst_entry1;
+ dst_entry1->rename_df_conflict_info = ci;
+ dst_entry1->processed = 0;
+
+ assert(!pair2 == !dst_entry2);
+ if (dst_entry2) {
+ ci->dst_entry2 = dst_entry2;
+ ci->pair2 = pair2;
+ dst_entry2->rename_df_conflict_info = ci;
+ dst_entry2->processed = 0;
+ }
+}
+
static int show(struct merge_options *o, int v)
{
return (!o->call_depth && o->verbosity >= v) || o->verbosity >= 5;
__attribute__((format (printf, 3, 4)))
static void output(struct merge_options *o, int v, const char *fmt, ...)
{
- int len;
va_list ap;
if (!show(o, v))
strbuf_setlen(&o->obuf, o->obuf.len + o->call_depth * 2);
va_start(ap, fmt);
- len = vsnprintf(o->obuf.buf + o->obuf.len, strbuf_avail(&o->obuf), fmt, ap);
+ strbuf_vaddf(&o->obuf, fmt, ap);
va_end(ap);
- if (len < 0)
- len = 0;
- if (len >= strbuf_avail(&o->obuf)) {
- strbuf_grow(&o->obuf, len + 2);
- va_start(ap, fmt);
- len = vsnprintf(o->obuf.buf + o->obuf.len, strbuf_avail(&o->obuf), fmt, ap);
- va_end(ap);
- if (len >= strbuf_avail(&o->obuf)) {
- die("this should not happen, your snprintf is broken");
- }
- }
- strbuf_setlen(&o->obuf, o->obuf.len + len);
strbuf_add(&o->obuf, "\n", 1);
if (!o->buffer_output)
flush_output(o);
if (parse_commit(commit) != 0)
printf("(bad commit)\n");
else {
- const char *s;
- int len;
- for (s = commit->buffer; *s; s++)
- if (*s == '\n' && s[1] == '\n') {
- s += 2;
- break;
- }
- for (len = 0; s[len] && '\n' != s[len]; len++)
- ; /* do nothing */
- printf("%.*s\n", len, s);
+ const char *title;
+ int len = find_commit_subject(commit->buffer, &title);
+ if (len)
+ printf("%.*s\n", len, title);
}
}
}
opts.fn = threeway_merge;
opts.src_index = &the_index;
opts.dst_index = &the_index;
- opts.msgs = get_porcelain_error_msgs();
+ setup_unpack_trees_porcelain(&opts, "merge");
init_tree_desc_from_tree(t+0, common);
init_tree_desc_from_tree(t+1, head);
newpath[baselen + len] = '\0';
if (S_ISDIR(mode))
- string_list_insert(newpath, &o->current_directory_set);
+ string_list_insert(&o->current_directory_set, newpath);
else
- string_list_insert(newpath, &o->current_file_set);
+ string_list_insert(&o->current_file_set, newpath);
free(newpath);
return (S_ISDIR(mode) ? READ_TREE_RECURSIVE : 0);
static int get_files_dirs(struct merge_options *o, struct tree *tree)
{
int n;
- if (read_tree_recursive(tree, "", 0, 0, NULL, save_files_dirs, o))
+ struct pathspec match_all;
+ init_pathspec(&match_all, NULL);
+ if (read_tree_recursive(tree, "", 0, 0, &match_all, save_files_dirs, o))
return 0;
n = o->current_file_set.nr + o->current_directory_set.nr;
return n;
e->stages[2].sha, &e->stages[2].mode);
get_tree_entry(b->object.sha1, path,
e->stages[3].sha, &e->stages[3].mode);
- item = string_list_insert(path, entries);
+ item = string_list_insert(entries, path);
item->util = e;
return e;
}
if (!ce_stage(ce))
continue;
- item = string_list_lookup(ce->name, unmerged);
+ item = string_list_lookup(unmerged, ce->name);
if (!item) {
- item = string_list_insert(ce->name, unmerged);
+ item = string_list_insert(unmerged, ce->name);
item->util = xcalloc(1, sizeof(struct stage_data));
}
e = item->util;
return unmerged;
}
-struct rename
+static void make_room_for_directories_of_df_conflicts(struct merge_options *o,
+ struct string_list *entries)
{
+ /* If there are D/F conflicts, and the paths currently exist
+ * in the working copy as a file, we want to remove them to
+ * make room for the corresponding directory. Such paths will
+ * later be processed in process_df_entry() at the end. If
+ * the corresponding directory ends up being removed by the
+ * merge, then the file will be reinstated at that time;
+ * otherwise, if the file is not supposed to be removed by the
+ * merge, the contents of the file will be placed in another
+ * unique filename.
+ *
+ * NOTE: This function relies on the fact that entries for a
+ * D/F conflict will appear adjacent in the index, with the
+ * entries for the file appearing before entries for paths
+ * below the corresponding directory.
+ */
+ const char *last_file = NULL;
+ int last_len = 0;
+ int i;
+
+ for (i = 0; i < entries->nr; i++) {
+ const char *path = entries->items[i].string;
+ int len = strlen(path);
+ struct stage_data *e = entries->items[i].util;
+
+ /*
+ * Check if last_file & path correspond to a D/F conflict;
+ * i.e. whether path is last_file+'/'+<something>.
+ * If so, remove last_file to make room for path and friends.
+ */
+ if (last_file &&
+ len > last_len &&
+ memcmp(path, last_file, last_len) == 0 &&
+ path[last_len] == '/') {
+ output(o, 3, "Removing %s to make room for subdirectory; may re-add later.", last_file);
+ unlink(last_file);
+ }
+
+ /*
+ * Determine whether path could exist as a file in the
+ * working directory as a possible D/F conflict. This
+ * will only occur when it exists in stage 2 as a
+ * file.
+ */
+ if (S_ISREG(e->stages[2].mode) || S_ISLNK(e->stages[2].mode)) {
+ last_file = path;
+ last_len = len;
+ } else {
+ last_file = NULL;
+ }
+ }
+}
+
+struct rename {
struct diff_filepair *pair;
struct stage_data *src_entry;
struct stage_data *dst_entry;
opts.detect_rename = DIFF_DETECT_RENAME;
opts.rename_limit = o->merge_rename_limit >= 0 ? o->merge_rename_limit :
o->diff_rename_limit >= 0 ? o->diff_rename_limit :
- 500;
- opts.warn_on_too_large_rename = 1;
+ 1000;
+ opts.rename_score = o->rename_score;
+ opts.show_rename_progress = o->show_rename_progress;
opts.output_format = DIFF_FORMAT_NO_OUTPUT;
if (diff_setup_done(&opts) < 0)
die("diff setup failed");
diff_tree_sha1(o_tree->object.sha1, tree->object.sha1, "", &opts);
diffcore_std(&opts);
+ if (opts.needed_rename_limit > o->needed_rename_limit)
+ o->needed_rename_limit = opts.needed_rename_limit;
for (i = 0; i < diff_queued_diff.nr; ++i) {
struct string_list_item *item;
struct rename *re;
re = xmalloc(sizeof(*re));
re->processed = 0;
re->pair = pair;
- item = string_list_lookup(re->pair->one->path, entries);
+ item = string_list_lookup(entries, re->pair->one->path);
if (!item)
re->src_entry = insert_stage_data(re->pair->one->path,
o_tree, a_tree, b_tree, entries);
else
re->src_entry = item->util;
- item = string_list_lookup(re->pair->two->path, entries);
+ item = string_list_lookup(entries, re->pair->two->path);
if (!item)
re->dst_entry = insert_stage_data(re->pair->two->path,
o_tree, a_tree, b_tree, entries);
else
re->dst_entry = item->util;
- item = string_list_insert(pair->one->path, renames);
+ item = string_list_insert(renames, pair->one->path);
item->util = re;
}
opts.output_format = DIFF_FORMAT_NO_OUTPUT;
return renames;
}
-static int update_stages(const char *path, struct diff_filespec *o,
+static int update_stages_options(const char *path, struct diff_filespec *o,
struct diff_filespec *a, struct diff_filespec *b,
- int clear)
+ int clear, int options)
{
- int options = ADD_CACHE_OK_TO_ADD | ADD_CACHE_OK_TO_REPLACE;
if (clear)
if (remove_file_from_cache(path))
return -1;
return 0;
}
+static int update_stages(const char *path, struct diff_filespec *o,
+ struct diff_filespec *a, struct diff_filespec *b,
+ int clear)
+{
+ int options = ADD_CACHE_OK_TO_ADD | ADD_CACHE_OK_TO_REPLACE;
+ return update_stages_options(path, o, a, b, clear, options);
+}
+
+static int update_stages_and_entry(const char *path,
+ struct stage_data *entry,
+ struct diff_filespec *o,
+ struct diff_filespec *a,
+ struct diff_filespec *b,
+ int clear)
+{
+ int options;
+
+ entry->processed = 0;
+ entry->stages[1].mode = o->mode;
+ entry->stages[2].mode = a->mode;
+ entry->stages[3].mode = b->mode;
+ hashcpy(entry->stages[1].sha, o->sha1);
+ hashcpy(entry->stages[2].sha, a->sha1);
+ hashcpy(entry->stages[3].sha, b->sha1);
+ options = ADD_CACHE_OK_TO_ADD | ADD_CACHE_SKIP_DFCHECK;
+ return update_stages_options(path, o, a, b, clear, options);
+}
+
static int remove_file(struct merge_options *o, int clean,
const char *path, int no_wd)
{
lstat(newpath, &st) == 0)
sprintf(p, "_%d", suffix++);
- string_list_insert(newpath, &o->current_file_set);
+ string_list_insert(&o->current_file_set, newpath);
return newpath;
}
void *buf;
unsigned long size;
- if (S_ISGITLINK(mode))
+ if (S_ISGITLINK(mode)) {
/*
* We may later decide to recursively descend into
* the submodule directory and update its index
* and/or work tree, but we do not do that now.
*/
+ update_wd = 0;
goto update_index;
+ }
buf = read_sha1_file(sha, &type, &size);
if (!buf)
/* Low level file merging, update and removal */
-struct merge_file_info
-{
+struct merge_file_info {
unsigned char sha[20];
unsigned mode;
unsigned clean:1,
const char *branch2)
{
mmfile_t orig, src1, src2;
+ struct ll_merge_options ll_opts = {0};
char *base_name, *name1, *name2;
int merge_status;
- int favor;
- if (o->call_depth)
- favor = 0;
- else {
+ ll_opts.renormalize = o->renormalize;
+ ll_opts.xdl_opts = o->xdl_opts;
+
+ if (o->call_depth) {
+ ll_opts.virtual_ancestor = 1;
+ ll_opts.variant = 0;
+ } else {
switch (o->recursive_variant) {
case MERGE_RECURSIVE_OURS:
- favor = XDL_MERGE_FAVOR_OURS;
+ ll_opts.variant = XDL_MERGE_FAVOR_OURS;
break;
case MERGE_RECURSIVE_THEIRS:
- favor = XDL_MERGE_FAVOR_THEIRS;
+ ll_opts.variant = XDL_MERGE_FAVOR_THEIRS;
break;
default:
- favor = 0;
+ ll_opts.variant = 0;
break;
}
}
read_mmblob(&src2, b->sha1);
merge_status = ll_merge(result_buf, a->path, &orig, base_name,
- &src1, name1, &src2, name2,
- (!!o->call_depth) | (favor << 1));
+ &src1, name1, &src2, name2, &ll_opts);
free(name1);
free(name2);
free(result_buf.ptr);
result.clean = (merge_status == 0);
} else if (S_ISGITLINK(a->mode)) {
- result.clean = 0;
- hashcpy(result.sha, a->sha1);
+ result.clean = merge_submodule(result.sha, one->path, one->sha1,
+ a->sha1, b->sha1);
} else if (S_ISLNK(a->mode)) {
hashcpy(result.sha, a->sha1);
return result;
}
-static void conflict_rename_rename(struct merge_options *o,
- struct rename *ren1,
- const char *branch1,
- struct rename *ren2,
- const char *branch2)
+static void conflict_rename_delete(struct merge_options *o,
+ struct diff_filepair *pair,
+ const char *rename_branch,
+ const char *other_branch)
{
+ char *dest_name = pair->two->path;
+ int df_conflict = 0;
+ struct stat st;
+
+ output(o, 1, "CONFLICT (rename/delete): Rename %s->%s in %s "
+ "and deleted in %s",
+ pair->one->path, pair->two->path, rename_branch,
+ other_branch);
+ if (!o->call_depth)
+ update_stages(dest_name, NULL,
+ rename_branch == o->branch1 ? pair->two : NULL,
+ rename_branch == o->branch1 ? NULL : pair->two,
+ 1);
+ if (lstat(dest_name, &st) == 0 && S_ISDIR(st.st_mode)) {
+ dest_name = unique_path(o, dest_name, rename_branch);
+ df_conflict = 1;
+ }
+ update_file(o, 0, pair->two->sha1, pair->two->mode, dest_name);
+ if (df_conflict)
+ free(dest_name);
+}
+
+static void conflict_rename_rename_1to2(struct merge_options *o,
+ struct diff_filepair *pair1,
+ const char *branch1,
+ struct diff_filepair *pair2,
+ const char *branch2)
+{
+ /* One file was renamed in both branches, but to different names. */
char *del[2];
int delp = 0;
- const char *ren1_dst = ren1->pair->two->path;
- const char *ren2_dst = ren2->pair->two->path;
+ const char *ren1_dst = pair1->two->path;
+ const char *ren2_dst = pair2->two->path;
const char *dst_name1 = ren1_dst;
const char *dst_name2 = ren2_dst;
- if (string_list_has_string(&o->current_directory_set, ren1_dst)) {
+ struct stat st;
+ if (lstat(ren1_dst, &st) == 0 && S_ISDIR(st.st_mode)) {
dst_name1 = del[delp++] = unique_path(o, ren1_dst, branch1);
output(o, 1, "%s is a directory in %s adding as %s instead",
ren1_dst, branch2, dst_name1);
- remove_file(o, 0, ren1_dst, 0);
}
- if (string_list_has_string(&o->current_directory_set, ren2_dst)) {
+ if (lstat(ren2_dst, &st) == 0 && S_ISDIR(st.st_mode)) {
dst_name2 = del[delp++] = unique_path(o, ren2_dst, branch2);
output(o, 1, "%s is a directory in %s adding as %s instead",
ren2_dst, branch1, dst_name2);
- remove_file(o, 0, ren2_dst, 0);
}
if (o->call_depth) {
remove_file_from_cache(dst_name1);
/*
* Uncomment to leave the conflicting names in the resulting tree
*
- * update_file(o, 0, ren1->pair->two->sha1, ren1->pair->two->mode, dst_name1);
- * update_file(o, 0, ren2->pair->two->sha1, ren2->pair->two->mode, dst_name2);
+ * update_file(o, 0, pair1->two->sha1, pair1->two->mode, dst_name1);
+ * update_file(o, 0, pair2->two->sha1, pair2->two->mode, dst_name2);
*/
} else {
- update_stages(dst_name1, NULL, ren1->pair->two, NULL, 1);
- update_stages(dst_name2, NULL, NULL, ren2->pair->two, 1);
+ update_stages(ren1_dst, NULL, pair1->two, NULL, 1);
+ update_stages(ren2_dst, NULL, NULL, pair2->two, 1);
+
+ update_file(o, 0, pair1->two->sha1, pair1->two->mode, dst_name1);
+ update_file(o, 0, pair2->two->sha1, pair2->two->mode, dst_name2);
}
while (delp--)
free(del[delp]);
}
-static void conflict_rename_dir(struct merge_options *o,
- struct rename *ren1,
- const char *branch1)
-{
- char *new_path = unique_path(o, ren1->pair->two->path, branch1);
- output(o, 1, "Renaming %s to %s instead", ren1->pair->one->path, new_path);
- remove_file(o, 0, ren1->pair->two->path, 0);
- update_file(o, 0, ren1->pair->two->sha1, ren1->pair->two->mode, new_path);
- free(new_path);
-}
-
-static void conflict_rename_rename_2(struct merge_options *o,
- struct rename *ren1,
- const char *branch1,
- struct rename *ren2,
- const char *branch2)
+static void conflict_rename_rename_2to1(struct merge_options *o,
+ struct rename *ren1,
+ const char *branch1,
+ struct rename *ren2,
+ const char *branch2)
{
+ /* Two files were renamed to the same thing. */
char *new_path1 = unique_path(o, ren1->pair->two->path, branch1);
char *new_path2 = unique_path(o, ren2->pair->two->path, branch2);
output(o, 1, "Renaming %s to %s and %s to %s instead",
struct string_list *b_renames)
{
int clean_merge = 1, i, j;
- struct string_list a_by_dst = {NULL, 0, 0, 0}, b_by_dst = {NULL, 0, 0, 0};
+ struct string_list a_by_dst = STRING_LIST_INIT_NODUP;
+ struct string_list b_by_dst = STRING_LIST_INIT_NODUP;
const struct rename *sre;
for (i = 0; i < a_renames->nr; i++) {
sre = a_renames->items[i].util;
- string_list_insert(sre->pair->two->path, &a_by_dst)->util
+ string_list_insert(&a_by_dst, sre->pair->two->path)->util
= sre->dst_entry;
}
for (i = 0; i < b_renames->nr; i++) {
sre = b_renames->items[i].util;
- string_list_insert(sre->pair->two->path, &b_by_dst)->util
+ string_list_insert(&b_by_dst, sre->pair->two->path)->util
= sre->dst_entry;
}
for (i = 0, j = 0; i < a_renames->nr || j < b_renames->nr;) {
- char *src;
struct string_list *renames1, *renames2Dst;
struct rename *ren1 = NULL, *ren2 = NULL;
const char *branch1, *branch2;
ren2 = ren1;
ren1 = tmp;
}
- src = ren1->pair->one->path;
ren1->dst_entry->processed = 1;
ren1->src_entry->processed = 1;
ren2->dst_entry->processed = 1;
ren2->processed = 1;
if (strcmp(ren1_dst, ren2_dst) != 0) {
- clean_merge = 0;
- output(o, 1, "CONFLICT (rename/rename): "
- "Rename \"%s\"->\"%s\" in branch \"%s\" "
- "rename \"%s\"->\"%s\" in \"%s\"%s",
- src, ren1_dst, branch1,
- src, ren2_dst, branch2,
- o->call_depth ? " (left unresolved)": "");
- if (o->call_depth) {
- remove_file_from_cache(src);
- update_file(o, 0, ren1->pair->one->sha1,
- ren1->pair->one->mode, src);
- }
- conflict_rename_rename(o, ren1, branch1, ren2, branch2);
+ setup_rename_df_conflict_info(RENAME_ONE_FILE_TO_TWO,
+ ren1->pair,
+ ren2->pair,
+ branch1,
+ branch2,
+ ren1->dst_entry,
+ ren2->dst_entry);
} else {
- struct merge_file_info mfi;
remove_file(o, 1, ren1_src, 1);
- mfi = merge_file(o,
- ren1->pair->one,
- ren1->pair->two,
- ren2->pair->two,
- branch1,
- branch2);
- if (mfi.merge || !mfi.clean)
- output(o, 1, "Renaming %s->%s", src, ren1_dst);
-
- if (mfi.merge)
- output(o, 2, "Auto-merging %s", ren1_dst);
-
- if (!mfi.clean) {
- output(o, 1, "CONFLICT (content): merge conflict in %s",
- ren1_dst);
- clean_merge = 0;
-
- if (!o->call_depth)
- update_stages(ren1_dst,
- ren1->pair->one,
- ren1->pair->two,
- ren2->pair->two,
- 1 /* clear */);
- }
- update_file(o, mfi.clean, mfi.sha, mfi.mode, ren1_dst);
+ update_stages_and_entry(ren1_dst,
+ ren1->dst_entry,
+ ren1->pair->one,
+ ren1->pair->two,
+ ren2->pair->two,
+ 1 /* clear */);
}
} else {
/* Renamed in 1, maybe changed in 2 */
struct string_list_item *item;
/* we only use sha1 and mode of these */
struct diff_filespec src_other, dst_other;
- int try_merge, stage = a_renames == renames1 ? 3: 2;
+ int try_merge;
- remove_file(o, 1, ren1_src, o->call_depth || stage == 3);
+ /*
+ * unpack_trees loads entries from common-commit
+ * into stage 1, from head-commit into stage 2, and
+ * from merge-commit into stage 3. We keep track
+ * of which side corresponds to the rename.
+ */
+ int renamed_stage = a_renames == renames1 ? 2 : 3;
+ int other_stage = a_renames == renames1 ? 3 : 2;
- hashcpy(src_other.sha1, ren1->src_entry->stages[stage].sha);
- src_other.mode = ren1->src_entry->stages[stage].mode;
- hashcpy(dst_other.sha1, ren1->dst_entry->stages[stage].sha);
- dst_other.mode = ren1->dst_entry->stages[stage].mode;
+ remove_file(o, 1, ren1_src, o->call_depth || renamed_stage == 2);
+ hashcpy(src_other.sha1, ren1->src_entry->stages[other_stage].sha);
+ src_other.mode = ren1->src_entry->stages[other_stage].mode;
+ hashcpy(dst_other.sha1, ren1->dst_entry->stages[other_stage].sha);
+ dst_other.mode = ren1->dst_entry->stages[other_stage].mode;
try_merge = 0;
- if (string_list_has_string(&o->current_directory_set, ren1_dst)) {
- clean_merge = 0;
- output(o, 1, "CONFLICT (rename/directory): Rename %s->%s in %s "
- " directory %s added in %s",
- ren1_src, ren1_dst, branch1,
- ren1_dst, branch2);
- conflict_rename_dir(o, ren1, branch1);
- } else if (sha_eq(src_other.sha1, null_sha1)) {
- clean_merge = 0;
- output(o, 1, "CONFLICT (rename/delete): Rename %s->%s in %s "
- "and deleted in %s",
- ren1_src, ren1_dst, branch1,
- branch2);
- update_file(o, 0, ren1->pair->two->sha1, ren1->pair->two->mode, ren1_dst);
- if (!o->call_depth)
- update_stages(ren1_dst, NULL,
- branch1 == o->branch1 ?
- ren1->pair->two : NULL,
- branch1 == o->branch1 ?
- NULL : ren1->pair->two, 1);
+ if (sha_eq(src_other.sha1, null_sha1)) {
+ if (string_list_has_string(&o->current_directory_set, ren1_dst)) {
+ ren1->dst_entry->processed = 0;
+ setup_rename_df_conflict_info(RENAME_DELETE,
+ ren1->pair,
+ NULL,
+ branch1,
+ branch2,
+ ren1->dst_entry,
+ NULL);
+ } else {
+ clean_merge = 0;
+ conflict_rename_delete(o, ren1->pair, branch1, branch2);
+ }
+ } else if ((dst_other.mode == ren1->pair->two->mode) &&
+ sha_eq(dst_other.sha1, ren1->pair->two->sha1)) {
+ /* Added file on the other side
+ identical to the file being
+ renamed: clean merge */
+ update_file(o, 1, ren1->pair->two->sha1, ren1->pair->two->mode, ren1_dst);
} else if (!sha_eq(dst_other.sha1, null_sha1)) {
const char *new_path;
clean_merge = 0;
mfi.sha,
mfi.mode,
ren1_dst);
+ try_merge = 0;
} else {
new_path = unique_path(o, ren1_dst, branch2);
output(o, 1, "Adding as %s instead", new_path);
update_file(o, 0, dst_other.sha1, dst_other.mode, new_path);
}
- } else if ((item = string_list_lookup(ren1_dst, renames2Dst))) {
+ } else if ((item = string_list_lookup(renames2Dst, ren1_dst))) {
ren2 = item->util;
clean_merge = 0;
ren2->processed = 1;
"Rename %s->%s in %s",
ren1_src, ren1_dst, branch1,
ren2->pair->one->path, ren2->pair->two->path, branch2);
- conflict_rename_rename_2(o, ren1, branch1, ren2, branch2);
+ conflict_rename_rename_2to1(o, ren1, branch1, ren2, branch2);
} else
try_merge = 1;
if (try_merge) {
struct diff_filespec *one, *a, *b;
- struct merge_file_info mfi;
src_other.path = (char *)ren1_src;
one = ren1->pair->one;
b = ren1->pair->two;
a = &src_other;
}
- mfi = merge_file(o, one, a, b,
- o->branch1, o->branch2);
-
- if (mfi.clean &&
- sha_eq(mfi.sha, ren1->pair->two->sha1) &&
- mfi.mode == ren1->pair->two->mode)
- /*
- * This messaged is part of
- * t6022 test. If you change
- * it update the test too.
- */
- output(o, 3, "Skipped %s (merged same as existing)", ren1_dst);
- else {
- if (mfi.merge || !mfi.clean)
- output(o, 1, "Renaming %s => %s", ren1_src, ren1_dst);
- if (mfi.merge)
- output(o, 2, "Auto-merging %s", ren1_dst);
- if (!mfi.clean) {
- output(o, 1, "CONFLICT (rename/modify): Merge conflict in %s",
- ren1_dst);
- clean_merge = 0;
-
- if (!o->call_depth)
- update_stages(ren1_dst,
- one, a, b, 1);
- }
- update_file(o, mfi.clean, mfi.sha, mfi.mode, ren1_dst);
+ update_stages_and_entry(ren1_dst, ren1->dst_entry, one, a, b, 1);
+ if (string_list_has_string(&o->current_directory_set, ren1_dst)) {
+ setup_rename_df_conflict_info(RENAME_NORMAL,
+ ren1->pair,
+ NULL,
+ branch1,
+ NULL,
+ ren1->dst_entry,
+ NULL);
}
}
}
return (is_null_sha1(sha) || mode == 0) ? NULL: (unsigned char *)sha;
}
+static int read_sha1_strbuf(const unsigned char *sha1, struct strbuf *dst)
+{
+ void *buf;
+ enum object_type type;
+ unsigned long size;
+ buf = read_sha1_file(sha1, &type, &size);
+ if (!buf)
+ return error("cannot read object %s", sha1_to_hex(sha1));
+ if (type != OBJ_BLOB) {
+ free(buf);
+ return error("object %s is not a blob", sha1_to_hex(sha1));
+ }
+ strbuf_attach(dst, buf, size, size + 1);
+ return 0;
+}
+
+static int blob_unchanged(const unsigned char *o_sha,
+ const unsigned char *a_sha,
+ int renormalize, const char *path)
+{
+ struct strbuf o = STRBUF_INIT;
+ struct strbuf a = STRBUF_INIT;
+ int ret = 0; /* assume changed for safety */
+
+ if (sha_eq(o_sha, a_sha))
+ return 1;
+ if (!renormalize)
+ return 0;
+
+ assert(o_sha && a_sha);
+ if (read_sha1_strbuf(o_sha, &o) || read_sha1_strbuf(a_sha, &a))
+ goto error_return;
+ /*
+ * Note: binary | is used so that both renormalizations are
+ * performed. Comparison can be skipped if both files are
+ * unchanged since their sha1s have already been compared.
+ */
+ if (renormalize_buffer(path, o.buf, o.len, &o) |
+ renormalize_buffer(path, a.buf, o.len, &a))
+ ret = (o.len == a.len && !memcmp(o.buf, a.buf, o.len));
+
+error_return:
+ strbuf_release(&o);
+ strbuf_release(&a);
+ return ret;
+}
+
+static void handle_delete_modify(struct merge_options *o,
+ const char *path,
+ const char *new_path,
+ unsigned char *a_sha, int a_mode,
+ unsigned char *b_sha, int b_mode)
+{
+ if (!a_sha) {
+ output(o, 1, "CONFLICT (delete/modify): %s deleted in %s "
+ "and modified in %s. Version %s of %s left in tree%s%s.",
+ path, o->branch1,
+ o->branch2, o->branch2, path,
+ path == new_path ? "" : " at ",
+ path == new_path ? "" : new_path);
+ update_file(o, 0, b_sha, b_mode, new_path);
+ } else {
+ output(o, 1, "CONFLICT (delete/modify): %s deleted in %s "
+ "and modified in %s. Version %s of %s left in tree%s%s.",
+ path, o->branch2,
+ o->branch1, o->branch1, path,
+ path == new_path ? "" : " at ",
+ path == new_path ? "" : new_path);
+ update_file(o, 0, a_sha, a_mode, new_path);
+ }
+}
+
+static int merge_content(struct merge_options *o,
+ const char *path,
+ unsigned char *o_sha, int o_mode,
+ unsigned char *a_sha, int a_mode,
+ unsigned char *b_sha, int b_mode,
+ const char *df_rename_conflict_branch)
+{
+ const char *reason = "content";
+ struct merge_file_info mfi;
+ struct diff_filespec one, a, b;
+ struct stat st;
+ unsigned df_conflict_remains = 0;
+
+ if (!o_sha) {
+ reason = "add/add";
+ o_sha = (unsigned char *)null_sha1;
+ }
+ one.path = a.path = b.path = (char *)path;
+ hashcpy(one.sha1, o_sha);
+ one.mode = o_mode;
+ hashcpy(a.sha1, a_sha);
+ a.mode = a_mode;
+ hashcpy(b.sha1, b_sha);
+ b.mode = b_mode;
+
+ mfi = merge_file(o, &one, &a, &b, o->branch1, o->branch2);
+ if (df_rename_conflict_branch &&
+ lstat(path, &st) == 0 && S_ISDIR(st.st_mode)) {
+ df_conflict_remains = 1;
+ }
+
+ if (mfi.clean && !df_conflict_remains &&
+ sha_eq(mfi.sha, a_sha) && mfi.mode == a.mode)
+ output(o, 3, "Skipped %s (merged same as existing)", path);
+ else
+ output(o, 2, "Auto-merging %s", path);
+
+ if (!mfi.clean) {
+ if (S_ISGITLINK(mfi.mode))
+ reason = "submodule";
+ output(o, 1, "CONFLICT (%s): Merge conflict in %s",
+ reason, path);
+ }
+
+ if (df_conflict_remains) {
+ const char *new_path;
+ update_file_flags(o, mfi.sha, mfi.mode, path,
+ o->call_depth || mfi.clean, 0);
+ new_path = unique_path(o, path, df_rename_conflict_branch);
+ mfi.clean = 0;
+ output(o, 1, "Adding as %s instead", new_path);
+ update_file_flags(o, mfi.sha, mfi.mode, new_path, 0, 1);
+ } else {
+ update_file(o, mfi.clean, mfi.sha, mfi.mode, path);
+ }
+ return mfi.clean;
+
+}
+
/* Per entry merge function */
static int process_entry(struct merge_options *o,
const char *path, struct stage_data *entry)
print_index_entry("\tpath: ", entry);
*/
int clean_merge = 1;
+ int normalize = o->renormalize;
unsigned o_mode = entry->stages[1].mode;
unsigned a_mode = entry->stages[2].mode;
unsigned b_mode = entry->stages[3].mode;
unsigned char *a_sha = stage_sha(entry->stages[2].sha, a_mode);
unsigned char *b_sha = stage_sha(entry->stages[3].sha, b_mode);
+ if (entry->rename_df_conflict_info)
+ return 1; /* Such cases are handled elsewhere. */
+
+ entry->processed = 1;
if (o_sha && (!a_sha || !b_sha)) {
/* Case A: Deleted in one */
if ((!a_sha && !b_sha) ||
- (sha_eq(a_sha, o_sha) && !b_sha) ||
- (!a_sha && sha_eq(b_sha, o_sha))) {
+ (!b_sha && blob_unchanged(o_sha, a_sha, normalize, path)) ||
+ (!a_sha && blob_unchanged(o_sha, b_sha, normalize, path))) {
/* Deleted in both or deleted in one and
* unchanged in the other */
if (a_sha)
output(o, 2, "Removing %s", path);
/* do not touch working file if it did not exist */
remove_file(o, 1, path, !a_sha);
+ } else if (string_list_has_string(&o->current_directory_set,
+ path)) {
+ entry->processed = 0;
+ return 1; /* Assume clean until processed */
} else {
/* Deleted in one and changed in the other */
clean_merge = 0;
- if (!a_sha) {
- output(o, 1, "CONFLICT (delete/modify): %s deleted in %s "
- "and modified in %s. Version %s of %s left in tree.",
- path, o->branch1,
- o->branch2, o->branch2, path);
- update_file(o, 0, b_sha, b_mode, path);
- } else {
- output(o, 1, "CONFLICT (delete/modify): %s deleted in %s "
- "and modified in %s. Version %s of %s left in tree.",
- path, o->branch2,
- o->branch1, o->branch1, path);
- update_file(o, 0, a_sha, a_mode, path);
- }
+ handle_delete_modify(o, path, path,
+ a_sha, a_mode, b_sha, b_mode);
}
} else if ((!o_sha && a_sha && !b_sha) ||
(!o_sha && !a_sha && b_sha)) {
/* Case B: Added in one. */
- const char *add_branch;
- const char *other_branch;
unsigned mode;
const unsigned char *sha;
- const char *conf;
if (a_sha) {
- add_branch = o->branch1;
- other_branch = o->branch2;
mode = a_mode;
sha = a_sha;
- conf = "file/directory";
} else {
- add_branch = o->branch2;
- other_branch = o->branch1;
mode = b_mode;
sha = b_sha;
- conf = "directory/file";
}
if (string_list_has_string(&o->current_directory_set, path)) {
- const char *new_path = unique_path(o, path, add_branch);
- clean_merge = 0;
- output(o, 1, "CONFLICT (%s): There is a directory with name %s in %s. "
- "Adding %s as %s",
- conf, path, other_branch, path, new_path);
- remove_file(o, 0, path, 0);
- update_file(o, 0, sha, mode, new_path);
+ /* Handle D->F conflicts after all subfiles */
+ entry->processed = 0;
+ return 1; /* Assume clean until processed */
} else {
output(o, 2, "Adding %s", path);
update_file(o, 1, sha, mode, path);
} else if (a_sha && b_sha) {
/* Case C: Added in both (check for same permissions) and */
/* case D: Modified in both, but differently. */
- const char *reason = "content";
- struct merge_file_info mfi;
- struct diff_filespec one, a, b;
-
- if (!o_sha) {
- reason = "add/add";
- o_sha = (unsigned char *)null_sha1;
- }
- output(o, 2, "Auto-merging %s", path);
- one.path = a.path = b.path = (char *)path;
- hashcpy(one.sha1, o_sha);
- one.mode = o_mode;
- hashcpy(a.sha1, a_sha);
- a.mode = a_mode;
- hashcpy(b.sha1, b_sha);
- b.mode = b_mode;
-
- mfi = merge_file(o, &one, &a, &b,
- o->branch1, o->branch2);
-
- clean_merge = mfi.clean;
- if (!mfi.clean) {
- if (S_ISGITLINK(mfi.mode))
- reason = "submodule";
- output(o, 1, "CONFLICT (%s): Merge conflict in %s",
- reason, path);
- }
- update_file(o, mfi.clean, mfi.sha, mfi.mode, path);
+ clean_merge = merge_content(o, path,
+ o_sha, o_mode, a_sha, a_mode, b_sha, b_mode,
+ NULL);
} else if (!o_sha && !a_sha && !b_sha) {
/*
* this entry was deleted altogether. a_mode == 0 means
return clean_merge;
}
-struct unpack_trees_error_msgs get_porcelain_error_msgs(void)
+/*
+ * Per entry merge function for D/F (and/or rename) conflicts. In the
+ * cases we can cleanly resolve D/F conflicts, process_entry() can
+ * clean out all the files below the directory for us. All D/F
+ * conflict cases must be handled here at the end to make sure any
+ * directories that can be cleaned out, are.
+ *
+ * Some rename conflicts may also be handled here that don't necessarily
+ * involve D/F conflicts, since the code to handle them is generic enough
+ * to handle those rename conflicts with or without D/F conflicts also
+ * being involved.
+ */
+static int process_df_entry(struct merge_options *o,
+ const char *path, struct stage_data *entry)
{
- struct unpack_trees_error_msgs msgs = {
- /* would_overwrite */
- "Your local changes to '%s' would be overwritten by merge. Aborting.",
- /* not_uptodate_file */
- "Your local changes to '%s' would be overwritten by merge. Aborting.",
- /* not_uptodate_dir */
- "Updating '%s' would lose untracked files in it. Aborting.",
- /* would_lose_untracked */
- "Untracked working tree file '%s' would be %s by merge. Aborting",
- /* bind_overlap -- will not happen here */
- NULL,
- };
- if (advice_commit_before_merge) {
- msgs.would_overwrite = msgs.not_uptodate_file =
- "Your local changes to '%s' would be overwritten by merge. Aborting.\n"
- "Please, commit your changes or stash them before you can merge.";
+ int clean_merge = 1;
+ unsigned o_mode = entry->stages[1].mode;
+ unsigned a_mode = entry->stages[2].mode;
+ unsigned b_mode = entry->stages[3].mode;
+ unsigned char *o_sha = stage_sha(entry->stages[1].sha, o_mode);
+ unsigned char *a_sha = stage_sha(entry->stages[2].sha, a_mode);
+ unsigned char *b_sha = stage_sha(entry->stages[3].sha, b_mode);
+ struct stat st;
+
+ entry->processed = 1;
+ if (entry->rename_df_conflict_info) {
+ struct rename_df_conflict_info *conflict_info = entry->rename_df_conflict_info;
+ char *src;
+ switch (conflict_info->rename_type) {
+ case RENAME_NORMAL:
+ clean_merge = merge_content(o, path,
+ o_sha, o_mode, a_sha, a_mode, b_sha, b_mode,
+ conflict_info->branch1);
+ break;
+ case RENAME_DELETE:
+ clean_merge = 0;
+ conflict_rename_delete(o, conflict_info->pair1,
+ conflict_info->branch1,
+ conflict_info->branch2);
+ break;
+ case RENAME_ONE_FILE_TO_TWO:
+ src = conflict_info->pair1->one->path;
+ clean_merge = 0;
+ output(o, 1, "CONFLICT (rename/rename): "
+ "Rename \"%s\"->\"%s\" in branch \"%s\" "
+ "rename \"%s\"->\"%s\" in \"%s\"%s",
+ src, conflict_info->pair1->two->path, conflict_info->branch1,
+ src, conflict_info->pair2->two->path, conflict_info->branch2,
+ o->call_depth ? " (left unresolved)" : "");
+ if (o->call_depth) {
+ remove_file_from_cache(src);
+ update_file(o, 0, conflict_info->pair1->one->sha1,
+ conflict_info->pair1->one->mode, src);
+ }
+ conflict_rename_rename_1to2(o, conflict_info->pair1,
+ conflict_info->branch1,
+ conflict_info->pair2,
+ conflict_info->branch2);
+ conflict_info->dst_entry2->processed = 1;
+ break;
+ default:
+ entry->processed = 0;
+ break;
+ }
+ } else if (o_sha && (!a_sha || !b_sha)) {
+ /* Modify/delete; deleted side may have put a directory in the way */
+ const char *new_path = path;
+ if (lstat(path, &st) == 0 && S_ISDIR(st.st_mode))
+ new_path = unique_path(o, path, a_sha ? o->branch1 : o->branch2);
+ clean_merge = 0;
+ handle_delete_modify(o, path, new_path,
+ a_sha, a_mode, b_sha, b_mode);
+ } else if (!o_sha && !!a_sha != !!b_sha) {
+ /* directory -> (directory, file) */
+ const char *add_branch;
+ const char *other_branch;
+ unsigned mode;
+ const unsigned char *sha;
+ const char *conf;
+
+ if (a_sha) {
+ add_branch = o->branch1;
+ other_branch = o->branch2;
+ mode = a_mode;
+ sha = a_sha;
+ conf = "file/directory";
+ } else {
+ add_branch = o->branch2;
+ other_branch = o->branch1;
+ mode = b_mode;
+ sha = b_sha;
+ conf = "directory/file";
+ }
+ if (lstat(path, &st) == 0 && S_ISDIR(st.st_mode)) {
+ const char *new_path = unique_path(o, path, add_branch);
+ clean_merge = 0;
+ output(o, 1, "CONFLICT (%s): There is a directory with name %s in %s. "
+ "Adding %s as %s",
+ conf, path, other_branch, path, new_path);
+ update_file(o, 0, sha, mode, new_path);
+ } else {
+ output(o, 2, "Adding %s", path);
+ update_file(o, 1, sha, mode, path);
+ }
+ } else {
+ entry->processed = 0;
+ return 1; /* not handled; assume clean until processed */
}
- return msgs;
+
+ return clean_merge;
}
int merge_trees(struct merge_options *o,
}
if (sha_eq(common->object.sha1, merge->object.sha1)) {
- output(o, 0, "Already uptodate!");
+ output(o, 0, "Already up-to-date!");
*result = head;
return 1;
}
get_files_dirs(o, merge);
entries = get_unmerged();
+ make_room_for_directories_of_df_conflicts(o, entries);
re_head = get_renames(o, head, common, head, merge, entries);
re_merge = get_renames(o, merge, common, head, merge, entries);
clean = process_renames(o, re_head, re_merge);
&& !process_entry(o, path, e))
clean = 0;
}
+ for (i = 0; i < entries->nr; i++) {
+ const char *path = entries->items[i].string;
+ struct stage_data *e = entries->items[i].util;
+ if (!e->processed
+ && !process_df_entry(o, path, e))
+ clean = 0;
+ }
+ for (i = 0; i < entries->nr; i++) {
+ struct stage_data *e = entries->items[i].util;
+ if (!e->processed)
+ die("Unprocessed path??? %s",
+ entries->items[i].string);
+ }
string_list_clear(re_merge, 0);
string_list_clear(re_head, 0);
merged_common_ancestors = pop_commit(&ca);
if (merged_common_ancestors == NULL) {
- /* if there is no common ancestor, make an empty tree */
- struct tree *tree = xcalloc(1, sizeof(struct tree));
+ /* if there is no common ancestor, use an empty tree */
+ struct tree *tree;
- tree->object.parsed = 1;
- tree->object.type = OBJ_TREE;
- pretend_sha1_file(NULL, 0, OBJ_TREE, tree->object.sha1);
+ tree = lookup_tree((const unsigned char *)EMPTY_TREE_SHA1_BIN);
merged_common_ancestors = make_virtual_commit(tree, "ancestor");
}
commit_list_insert(h2, &(*result)->parents->next);
}
flush_output(o);
+ if (show(o, 2))
+ diff_warn_rename_limit("merge.renamelimit",
+ o->needed_rename_limit, 0);
return clean;
}
static int merge_recursive_config(const char *var, const char *value, void *cb)
{
struct merge_options *o = cb;
- if (!strcasecmp(var, "merge.verbosity")) {
+ if (!strcmp(var, "merge.verbosity")) {
o->verbosity = git_config_int(var, value);
return 0;
}
- if (!strcasecmp(var, "diff.renamelimit")) {
+ if (!strcmp(var, "diff.renamelimit")) {
o->diff_rename_limit = git_config_int(var, value);
return 0;
}
- if (!strcasecmp(var, "merge.renamelimit")) {
+ if (!strcmp(var, "merge.renamelimit")) {
o->merge_rename_limit = git_config_int(var, value);
return 0;
}
o->buffer_output = 1;
o->diff_rename_limit = -1;
o->merge_rename_limit = -1;
+ o->renormalize = 0;
git_config(merge_recursive_config, o);
if (getenv("GIT_MERGE_VERBOSITY"))
o->verbosity =
memset(&o->current_directory_set, 0, sizeof(struct string_list));
o->current_directory_set.strdup_strings = 1;
}
+
+int parse_merge_opt(struct merge_options *o, const char *s)
+{
+ if (!s || !*s)
+ return -1;
+ if (!strcmp(s, "ours"))
+ o->recursive_variant = MERGE_RECURSIVE_OURS;
+ else if (!strcmp(s, "theirs"))
+ o->recursive_variant = MERGE_RECURSIVE_THEIRS;
+ else if (!strcmp(s, "subtree"))
+ o->subtree_shift = "";
+ else if (!prefixcmp(s, "subtree="))
+ o->subtree_shift = s + strlen("subtree=");
+ else if (!strcmp(s, "patience"))
+ o->xdl_opts |= XDF_PATIENCE_DIFF;
+ else if (!strcmp(s, "histogram"))
+ o->xdl_opts |= XDF_HISTOGRAM_DIFF;
+ else if (!strcmp(s, "ignore-space-change"))
+ o->xdl_opts |= XDF_IGNORE_WHITESPACE_CHANGE;
+ else if (!strcmp(s, "ignore-all-space"))
+ o->xdl_opts |= XDF_IGNORE_WHITESPACE;
+ else if (!strcmp(s, "ignore-space-at-eol"))
+ o->xdl_opts |= XDF_IGNORE_WHITESPACE_AT_EOL;
+ else if (!strcmp(s, "renormalize"))
+ o->renormalize = 1;
+ else if (!strcmp(s, "no-renormalize"))
+ o->renormalize = 0;
+ else if (!prefixcmp(s, "rename-threshold=")) {
+ const char *score = s + strlen("rename-threshold=");
+ if ((o->rename_score = parse_rename_score(&score)) == -1 || *score != 0)
+ return -1;
+ }
+ else
+ return -1;
+ return 0;
+}