#include "advice.h"
#include "lockfile.h"
#include "cache-tree.h"
+#include "object-store.h"
+#include "repository.h"
#include "commit.h"
#include "blob.h"
#include "builtin.h"
#include "diff.h"
#include "diffcore.h"
#include "tag.h"
+#include "alloc.h"
#include "unpack-trees.h"
#include "string-list.h"
#include "xdiff-interface.h"
#include "dir.h"
#include "submodule.h"
#include "revision.h"
+#include "commit-reach.h"
struct path_hashmap_entry {
struct hashmap_entry e;
shift_tree_by(&one->object.oid, &two->object.oid, &shifted,
subtree_shift);
}
- if (!oidcmp(&two->object.oid, &shifted))
+ if (oideq(&two->object.oid, &shifted))
return two;
- return lookup_tree(&shifted);
+ return lookup_tree(the_repository, &shifted);
}
static struct commit *make_virtual_commit(struct tree *tree, const char *comment)
{
- struct commit *commit = alloc_commit_node();
+ struct commit *commit = alloc_commit_node(the_repository);
set_merge_remote_desc(commit, comment, (struct object *)commit);
commit->maybe_tree = tree;
{
if (!a && !b)
return 2;
- return a && b && oidcmp(a, b) == 0;
+ return a && b && oideq(a, b);
}
enum rename_type {
struct stage_data *src_entry1,
struct stage_data *src_entry2)
{
- struct rename_conflict_info *ci = xcalloc(1, sizeof(struct rename_conflict_info));
+ struct rename_conflict_info *ci;
+
+ /*
+ * When we have two renames involved, it's easiest to get the
+ * correct things into stage 2 and 3, and to make sure that the
+ * content merge puts HEAD before the other branch if we just
+ * ensure that branch1 == o->branch1. So, simply flip arguments
+ * around if we don't have that.
+ */
+ if (dst_entry2 && branch1 != o->branch1) {
+ setup_rename_conflict_info(rename_type,
+ pair2, pair1,
+ branch2, branch1,
+ dst_entry2, dst_entry1,
+ o,
+ src_entry2, src_entry1);
+ return;
+ }
+
+ ci = xcalloc(1, sizeof(struct rename_conflict_info));
ci->rename_type = rename_type;
ci->pair1 = pair1;
ci->branch1 = branch1;
static void output_commit_title(struct merge_options *o, struct commit *commit)
{
+ struct merge_remote_desc *desc;
+
strbuf_addchars(&o->obuf, ' ', o->call_depth * 2);
- if (commit->util)
- strbuf_addf(&o->obuf, "virtual %s\n",
- merge_remote_util(commit)->name);
+ desc = merge_remote_util(commit);
+ if (desc)
+ strbuf_addf(&o->obuf, "virtual %s\n", desc->name);
else {
strbuf_add_unique_abbrev(&o->obuf, &commit->object.oid,
DEFAULT_ABBREV);
struct cache_entry *ce;
int ret;
- ce = make_cache_entry(mode, oid ? oid->hash : null_sha1, path, stage, 0);
+ ce = make_cache_entry(&the_index, mode, oid ? oid : &null_oid, path, stage, 0);
if (!ce)
return err(o, _("add_cacheinfo failed for path '%s'; merge aborting."), path);
if (refresh) {
struct cache_entry *nce;
- nce = refresh_cache_entry(ce, CE_MATCH_REFRESH | CE_MATCH_IGNORE_MISSING);
+ nce = refresh_cache_entry(&the_index, ce, CE_MATCH_REFRESH | CE_MATCH_IGNORE_MISSING);
if (!nce)
return err(o, _("add_cacheinfo failed to refresh for path '%s'; merge aborting."), path);
if (nce != ce)
return NULL;
}
- result = lookup_tree(&active_cache_tree->oid);
+ result = lookup_tree(the_repository, &active_cache_tree->oid);
return result;
}
}
if (S_ISREG(mode)) {
struct strbuf strbuf = STRBUF_INIT;
- if (convert_to_working_tree(path, buf, size, &strbuf)) {
+ if (convert_to_working_tree(&the_index, path, buf, size, &strbuf)) {
free(buf);
size = strbuf.len;
buf = strbuf_detach(&strbuf, NULL);
read_mmblob(&src2, &b->oid);
merge_status = ll_merge(result_buf, a->path, &orig, base_name,
- &src1, name1, &src2, name2, &ll_opts);
+ &src1, name1, &src2, name2,
+ &the_index, &ll_opts);
free(base_name);
free(name1);
/* get all revisions that merge commit a */
xsnprintf(merged_revision, sizeof(merged_revision), "^%s",
oid_to_hex(&a->object.oid));
- init_revisions(&revs, NULL);
+ repo_init_revisions(the_repository, &revs, NULL);
rev_opts.submodule = path;
/* FIXME: can't handle linked worktrees in submodules yet */
revs.single_worktree = path != NULL;
return 0;
}
- if (!(commit_base = lookup_commit_reference(base)) ||
- !(commit_a = lookup_commit_reference(a)) ||
- !(commit_b = lookup_commit_reference(b))) {
+ if (!(commit_base = lookup_commit_reference(the_repository, base)) ||
+ !(commit_a = lookup_commit_reference(the_repository, a)) ||
+ !(commit_b = lookup_commit_reference(the_repository, b))) {
output(o, 1, _("Failed to merge submodule %s (commits not present)"), path);
return 0;
}
output(o, 3, _("Fast-forwarding submodule %s to the following commit:"), path);
output_commit_title(o, commit_b);
} else if (show(o, 2))
- output(o, 2, _("Fast-forwarding submodule %s to %s"), path, oid_to_hex(b));
+ output(o, 2, _("Fast-forwarding submodule %s"), path);
else
; /* no output */
output(o, 3, _("Fast-forwarding submodule %s to the following commit:"), path);
output_commit_title(o, commit_a);
} else if (show(o, 2))
- output(o, 2, _("Fast-forwarding submodule %s to %s"), path, oid_to_hex(a));
+ output(o, 2, _("Fast-forwarding submodule %s"), path);
else
; /* no output */
return 0;
}
-static int merge_file_1(struct merge_options *o,
- const struct diff_filespec *one,
- const struct diff_filespec *a,
- const struct diff_filespec *b,
- const char *filename,
- const char *branch1,
- const char *branch2,
- struct merge_file_info *result)
+static int merge_mode_and_contents(struct merge_options *o,
+ const struct diff_filespec *one,
+ const struct diff_filespec *a,
+ const struct diff_filespec *b,
+ const char *filename,
+ const char *branch1,
+ const char *branch2,
+ struct merge_file_info *result)
{
+ if (o->branch1 != branch1) {
+ /*
+ * It's weird getting a reverse merge with HEAD on the bottom
+ * side of the conflict markers and the other branch on the
+ * top. Fix that.
+ */
+ return merge_mode_and_contents(o, one, b, a,
+ filename,
+ branch2, branch1, result);
+ }
+
result->merge = 0;
result->clean = 1;
return 0;
}
-static int merge_file_special_markers(struct merge_options *o,
- const struct diff_filespec *one,
- const struct diff_filespec *a,
- const struct diff_filespec *b,
- const char *target_filename,
- const char *branch1,
- const char *filename1,
- const char *branch2,
- const char *filename2,
- struct merge_file_info *mfi)
-{
- char *side1 = NULL;
- char *side2 = NULL;
- int ret;
-
- if (filename1)
- side1 = xstrfmt("%s:%s", branch1, filename1);
- if (filename2)
- side2 = xstrfmt("%s:%s", branch2, filename2);
-
- ret = merge_file_1(o, one, a, b, target_filename,
- side1 ? side1 : branch1,
- side2 ? side2 : branch2, mfi);
-
- free(side1);
- free(side2);
- return ret;
-}
-
-static int merge_file_one(struct merge_options *o,
- const char *path,
- const struct object_id *o_oid, int o_mode,
- const struct object_id *a_oid, int a_mode,
- const struct object_id *b_oid, int b_mode,
- const char *branch1,
- const char *branch2,
- struct merge_file_info *mfi)
-{
- struct diff_filespec one, a, b;
-
- one.path = a.path = b.path = (char *)path;
- oidcpy(&one.oid, o_oid);
- one.mode = o_mode;
- oidcpy(&a.oid, a_oid);
- a.mode = a_mode;
- oidcpy(&b.oid, b_oid);
- b.mode = b_mode;
- return merge_file_1(o, &one, &a, &b, path, branch1, branch2, mfi);
-}
-
static int handle_rename_via_dir(struct merge_options *o,
struct diff_filepair *pair,
const char *rename_branch,
if (!ret)
ret = update_file(o, 0, o_oid, o_mode, update_path);
} else {
+ /*
+ * Despite the four nearly duplicate messages and argument
+ * lists below and the ugliness of the nested if-statements,
+ * having complete messages makes the job easier for
+ * translators.
+ *
+ * The slight variance among the cases is due to the fact
+ * that:
+ * 1) directory/file conflicts (in effect if
+ * !alt_path) could cause us to need to write the
+ * file to a different path.
+ * 2) renames (in effect if !old_path) could mean that
+ * there are two names for the path that the user
+ * may know the file by.
+ */
if (!alt_path) {
if (!old_path) {
output(o, 1, _("CONFLICT (%s/delete): %s deleted in %s "
struct merge_file_info mfi;
struct diff_filespec other;
struct diff_filespec *add;
- if (merge_file_one(o, one->path,
- &one->oid, one->mode,
- &a->oid, a->mode,
- &b->oid, b->mode,
- ci->branch1, ci->branch2, &mfi))
+ if (merge_mode_and_contents(o, one, a, b, one->path,
+ ci->branch1, ci->branch2, &mfi))
return -1;
/*
remove_file(o, 1, a->path, o->call_depth || would_lose_untracked(a->path));
remove_file(o, 1, b->path, o->call_depth || would_lose_untracked(b->path));
- path_side_1_desc = xstrfmt("%s (was %s)", path, a->path);
- path_side_2_desc = xstrfmt("%s (was %s)", path, b->path);
- if (merge_file_special_markers(o, a, c1, &ci->ren1_other,
- path_side_1_desc,
- o->branch1, c1->path,
- o->branch2, ci->ren1_other.path, &mfi_c1) ||
- merge_file_special_markers(o, b, &ci->ren2_other, c2,
- path_side_2_desc,
- o->branch1, ci->ren2_other.path,
- o->branch2, c2->path, &mfi_c2))
+ path_side_1_desc = xstrfmt("version of %s from %s", path, a->path);
+ path_side_2_desc = xstrfmt("version of %s from %s", path, b->path);
+ if (merge_mode_and_contents(o, a, c1, &ci->ren1_other, path_side_1_desc,
+ o->branch1, o->branch2, &mfi_c1) ||
+ merge_mode_and_contents(o, b, &ci->ren2_other, c2, path_side_2_desc,
+ o->branch1, o->branch2, &mfi_c2))
return -1;
free(path_side_1_desc);
free(path_side_2_desc);
struct diff_queue_struct *ret;
struct diff_options opts;
- diff_setup(&opts);
+ repo_diff_setup(the_repository, &opts);
opts.flags.recursive = 1;
opts.flags.rename_empty = 0;
opts.detect_rename = merge_detect_rename(o);
static struct dir_rename_entry *check_dir_renamed(const char *path,
struct hashmap *dir_renames)
{
- char temp[PATH_MAX];
+ char *temp = xstrdup(path);
char *end;
- struct dir_rename_entry *entry;
+ struct dir_rename_entry *entry = NULL;
- strcpy(temp, path);
while ((end = strrchr(temp, '/'))) {
*end = '\0';
entry = dir_rename_find_entry(dir_renames, temp);
if (entry)
- return entry;
+ break;
}
- return NULL;
+ free(temp);
+ return entry;
}
static void compute_collisions(struct hashmap *collisions,
ren1_dst, branch2);
if (o->call_depth) {
struct merge_file_info mfi;
- if (merge_file_one(o, ren1_dst, &null_oid, 0,
- &ren1->pair->two->oid,
- ren1->pair->two->mode,
- &dst_other.oid,
- dst_other.mode,
- branch1, branch2, &mfi)) {
+ struct diff_filespec one, a, b;
+
+ oidcpy(&one.oid, &null_oid);
+ one.mode = 0;
+ one.path = ren1->pair->two->path;
+
+ oidcpy(&a.oid, &ren1->pair->two->oid);
+ a.mode = ren1->pair->two->mode;
+ a.path = one.path;
+
+ oidcpy(&b.oid, &dst_other.oid);
+ b.mode = dst_other.mode;
+ b.path = one.path;
+
+ if (merge_mode_and_contents(o, &one, &a, &b, ren1_dst,
+ branch1, branch2,
+ &mfi)) {
clean_merge = -1;
goto cleanup_and_return;
}
head_pairs = get_diffpairs(o, common, head);
merge_pairs = get_diffpairs(o, common, merge);
- dir_re_head = get_directory_renames(head_pairs, head);
- dir_re_merge = get_directory_renames(merge_pairs, merge);
+ if (o->detect_directory_renames) {
+ dir_re_head = get_directory_renames(head_pairs, head);
+ dir_re_merge = get_directory_renames(merge_pairs, merge);
- handle_directory_level_conflicts(o,
- dir_re_head, head,
- dir_re_merge, merge);
+ handle_directory_level_conflicts(o,
+ dir_re_head, head,
+ dir_re_merge, merge);
+ } else {
+ dir_re_head = xmalloc(sizeof(*dir_re_head));
+ dir_re_merge = xmalloc(sizeof(*dir_re_merge));
+ dir_rename_init(dir_re_head);
+ dir_rename_init(dir_re_merge);
+ }
ri->head_renames = get_renames(o, head_pairs,
dir_re_merge, dir_re_head, head,
_("modify"), _("modified"));
}
-static int merge_content(struct merge_options *o,
- const char *path,
- int is_dirty,
- struct object_id *o_oid, int o_mode,
- struct object_id *a_oid, int a_mode,
- struct object_id *b_oid, int b_mode,
- struct rename_conflict_info *rename_conflict_info)
+static int handle_content_merge(struct merge_options *o,
+ const char *path,
+ int is_dirty,
+ struct object_id *o_oid, int o_mode,
+ struct object_id *a_oid, int a_mode,
+ struct object_id *b_oid, int b_mode,
+ struct rename_conflict_info *rename_conflict_info)
{
const char *reason = _("content");
const char *path1 = NULL, *path2 = NULL;
path2 = (rename_conflict_info->pair2 ||
o->branch2 == rename_conflict_info->branch1) ?
pair1->two->path : pair1->one->path;
+ one.path = pair1->one->path;
+ a.path = (char *)path1;
+ b.path = (char *)path2;
if (dir_in_way(path, !o->call_depth,
S_ISGITLINK(pair1->two->mode)))
df_conflict_remains = 1;
}
- if (merge_file_special_markers(o, &one, &a, &b, path,
- o->branch1, path1,
- o->branch2, path2, &mfi))
+ if (merge_mode_and_contents(o, &one, &a, &b, path,
+ o->branch1, o->branch2, &mfi))
return -1;
/*
if (mfi.clean &&
was_tracked_and_matches(o, path, &mfi.oid, mfi.mode) &&
!df_conflict_remains) {
+ int pos;
+ struct cache_entry *ce;
+
output(o, 3, _("Skipped %s (merged same as existing)"), path);
if (add_cacheinfo(o, mfi.mode, &mfi.oid, path,
0, (!o->call_depth && !is_dirty), 0))
return -1;
+ /*
+ * However, add_cacheinfo() will delete the old cache entry
+ * and add a new one. We need to copy over any skip_worktree
+ * flag to avoid making the file appear as if it were
+ * deleted by the user.
+ */
+ pos = index_name_pos(&o->orig_index, path, strlen(path));
+ ce = o->orig_index.cache[pos];
+ if (ce_skip_worktree(ce)) {
+ pos = index_name_pos(&the_index, path, strlen(path));
+ ce = the_index.cache[pos];
+ ce->ce_flags |= CE_SKIP_WORKTREE;
+ }
return mfi.clean;
}
struct rename_conflict_info *ci)
{
/* Merge the content and write it out */
- return merge_content(o, path, was_dirty(o, path),
- o_oid, o_mode, a_oid, a_mode, b_oid, b_mode,
- ci);
+ return handle_content_merge(o, path, was_dirty(o, path),
+ o_oid, o_mode, a_oid, a_mode, b_oid, b_mode,
+ ci);
}
/* Per entry merge function */
/* Case C: Added in both (check for same permissions) and */
/* case D: Modified in both, but differently. */
int is_dirty = 0; /* unpack_trees would have bailed if dirty */
- clean_merge = merge_content(o, path, is_dirty,
- o_oid, o_mode, a_oid, a_mode, b_oid, b_mode,
- NULL);
+ clean_merge = handle_content_merge(o, path, is_dirty,
+ o_oid, o_mode,
+ a_oid, a_mode,
+ b_oid, b_mode,
+ NULL);
} else if (!o_oid && !a_oid && !b_oid) {
/*
* this entry was deleted altogether. a_mode == 0 means
struct tree **result)
{
int code, clean;
+ struct strbuf sb = STRBUF_INIT;
+
+ if (!o->call_depth && index_has_changes(&the_index, head, &sb)) {
+ err(o, _("Your local changes to the following files would be overwritten by merge:\n %s"),
+ sb.buf);
+ return -1;
+ }
if (o->subtree_shift) {
merge = shift_tree_object(head, merge, o->subtree_shift);
}
if (oid_eq(&common->object.oid, &merge->object.oid)) {
- struct strbuf sb = STRBUF_INIT;
-
- if (!o->call_depth && index_has_changes(&sb)) {
- err(o, _("Dirty index: cannot merge (dirty: %s)"),
- sb.buf);
- return 0;
- }
output(o, 0, _("Already up to date!"));
*result = head;
return 1;
/* if there is no common ancestor, use an empty tree */
struct tree *tree;
- tree = lookup_tree(the_hash_algo->empty_tree);
+ tree = lookup_tree(the_repository, the_repository->hash_algo->empty_tree);
merged_common_ancestors = make_virtual_commit(tree, "ancestor");
}
{
struct object *object;
- object = deref_tag(parse_object(oid), name, strlen(name));
+ object = deref_tag(the_repository, parse_object(the_repository, oid),
+ name,
+ strlen(name));
if (!object)
return NULL;
if (object->type == OBJ_TREE)
o->renormalize = 0;
o->diff_detect_rename = -1;
o->merge_detect_rename = -1;
+ o->detect_directory_renames = 1;
merge_recursive_config(o);
merge_verbosity = getenv("GIT_MERGE_VERBOSITY");
if (merge_verbosity)