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Diffstat (limited to 'builtin/checkout.c')
-rw-r--r--builtin/checkout.c148
1 files changed, 93 insertions, 55 deletions
diff --git a/builtin/checkout.c b/builtin/checkout.c
index c9ba23c279..43d0275187 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -26,6 +26,8 @@
#include "unpack-trees.h"
#include "wt-status.h"
#include "xdiff-interface.h"
+#include "entry.h"
+#include "parallel-checkout.h"
static const char * const checkout_usage[] = {
N_("git checkout [<options>] <branch>"),
@@ -89,8 +91,8 @@ struct checkout_opts {
};
struct branch_info {
- const char *name; /* The short name used */
- const char *path; /* The full name of a real branch */
+ char *name; /* The short name used */
+ char *path; /* The full name of a real branch */
struct commit *commit; /* The named commit */
char *refname; /* The full name of the ref being checked out. */
struct object_id oid; /* The object ID of the commit being checked out. */
@@ -101,12 +103,20 @@ struct branch_info {
char *checkout;
};
+static void branch_info_release(struct branch_info *info)
+{
+ free(info->name);
+ free(info->path);
+ free(info->refname);
+ free(info->checkout);
+}
+
static int post_checkout_hook(struct commit *old_commit, struct commit *new_commit,
int changed)
{
return run_hook_le(NULL, "post-checkout",
- oid_to_hex(old_commit ? &old_commit->object.oid : &null_oid),
- oid_to_hex(new_commit ? &new_commit->object.oid : &null_oid),
+ oid_to_hex(old_commit ? &old_commit->object.oid : null_oid()),
+ oid_to_hex(new_commit ? &new_commit->object.oid : null_oid()),
changed ? "1" : "0", NULL);
/* "new_commit" can be NULL when checking out from the index before
a commit exists. */
@@ -114,7 +124,7 @@ static int post_checkout_hook(struct commit *old_commit, struct commit *new_comm
}
static int update_some(const struct object_id *oid, struct strbuf *base,
- const char *pathname, unsigned mode, int stage, void *context)
+ const char *pathname, unsigned mode, void *context)
{
int len;
struct cache_entry *ce;
@@ -155,8 +165,8 @@ static int update_some(const struct object_id *oid, struct strbuf *base,
static int read_tree_some(struct tree *tree, const struct pathspec *pathspec)
{
- read_tree_recursive(the_repository, tree, "", 0, 0,
- pathspec, update_some, NULL);
+ read_tree(the_repository, tree,
+ pathspec, update_some, NULL);
/* update the index with the given tree's info
* for all args, expanding wildcards, and exit
@@ -229,7 +239,8 @@ static int checkout_stage(int stage, const struct cache_entry *ce, int pos,
return error(_("path '%s' does not have their version"), ce->name);
}
-static int checkout_merged(int pos, const struct checkout *state, int *nr_checkouts)
+static int checkout_merged(int pos, const struct checkout *state,
+ int *nr_checkouts, struct mem_pool *ce_mem_pool)
{
struct cache_entry *ce = active_cache[pos];
const char *path = ce->name;
@@ -290,11 +301,10 @@ static int checkout_merged(int pos, const struct checkout *state, int *nr_checko
if (write_object_file(result_buf.ptr, result_buf.size, blob_type, &oid))
die(_("Unable to add merge result for '%s'"), path);
free(result_buf.ptr);
- ce = make_transient_cache_entry(mode, &oid, path, 2);
+ ce = make_transient_cache_entry(mode, &oid, path, 2, ce_mem_pool);
if (!ce)
die(_("make_cache_entry failed for path '%s'"), path);
status = checkout_entry(ce, state, NULL, nr_checkouts);
- discard_cache_entry(ce);
return status;
}
@@ -322,7 +332,7 @@ static void mark_ce_for_checkout_overlay(struct cache_entry *ce,
* If it comes from the tree-ish, we already know it
* matches the pathspec and could just stamp
* CE_MATCHED to it from update_some(). But we still
- * need ps_matched and read_tree_recursive (and
+ * need ps_matched and read_tree (and
* eventually tree_entry_interesting) cannot fill
* ps_matched yet. Once it can, we can avoid calling
* match_pathspec() for _all_ entries when
@@ -358,16 +368,24 @@ static int checkout_worktree(const struct checkout_opts *opts,
int nr_checkouts = 0, nr_unmerged = 0;
int errs = 0;
int pos;
+ int pc_workers, pc_threshold;
+ struct mem_pool ce_mem_pool;
state.force = 1;
state.refresh_cache = 1;
state.istate = &the_index;
+ mem_pool_init(&ce_mem_pool, 0);
+ get_parallel_checkout_configs(&pc_workers, &pc_threshold);
init_checkout_metadata(&state.meta, info->refname,
info->commit ? &info->commit->object.oid : &info->oid,
NULL);
enable_delayed_checkout(&state);
+
+ if (pc_workers > 1)
+ init_parallel_checkout();
+
for (pos = 0; pos < active_nr; pos++) {
struct cache_entry *ce = active_cache[pos];
if (ce->ce_flags & CE_MATCHED) {
@@ -383,13 +401,18 @@ static int checkout_worktree(const struct checkout_opts *opts,
&nr_checkouts, opts->overlay_mode);
else if (opts->merge)
errs |= checkout_merged(pos, &state,
- &nr_unmerged);
+ &nr_unmerged,
+ &ce_mem_pool);
pos = skip_same_name(ce, pos) - 1;
}
}
+ if (pc_workers > 1)
+ errs |= run_parallel_checkout(&state, pc_workers, pc_threshold,
+ NULL, NULL);
+ mem_pool_discard(&ce_mem_pool, should_validate_cache_entries());
remove_marked_cache_entries(&the_index, 1);
remove_scheduled_dirs();
- errs |= finish_delayed_checkout(&state, &nr_checkouts);
+ errs |= finish_delayed_checkout(&state, &nr_checkouts, opts->show_progress);
if (opts->count_checkout_paths) {
if (nr_unmerged)
@@ -601,6 +624,7 @@ static void show_local_changes(struct object *head,
diff_setup_done(&rev.diffopt);
add_pending_object(&rev, head, NULL);
run_diff_index(&rev, 0);
+ object_array_clear(&rev.pending);
}
static void describe_detached_head(const char *msg, struct commit *commit)
@@ -630,14 +654,16 @@ static int reset_tree(struct tree *tree, const struct checkout_opts *o,
opts.head_idx = -1;
opts.update = worktree;
opts.skip_unmerged = !worktree;
- opts.reset = 1;
+ opts.reset = o->force ? UNPACK_RESET_OVERWRITE_UNTRACKED :
+ UNPACK_RESET_PROTECT_UNTRACKED;
+ opts.preserve_ignored = (!o->force && !o->overwrite_ignore);
opts.merge = 1;
opts.fn = oneway_merge;
opts.verbose_update = o->show_progress;
opts.src_index = &the_index;
opts.dst_index = &the_index;
init_checkout_metadata(&opts.meta, info->refname,
- info->commit ? &info->commit->object.oid : &null_oid,
+ info->commit ? &info->commit->object.oid : null_oid(),
NULL);
parse_tree(tree);
init_tree_desc(&tree_desc, tree->buffer, tree->size);
@@ -670,9 +696,12 @@ static void setup_branch_path(struct branch_info *branch)
repo_get_oid_committish(the_repository, branch->name, &branch->oid);
strbuf_branchname(&buf, branch->name, INTERPRET_BRANCH_LOCAL);
- if (strcmp(buf.buf, branch->name))
+ if (strcmp(buf.buf, branch->name)) {
+ free(branch->name);
branch->name = xstrdup(buf.buf);
+ }
strbuf_splice(&buf, 0, 0, "refs/heads/", 11);
+ free(branch->path);
branch->path = strbuf_detach(&buf, NULL);
}
@@ -730,11 +759,7 @@ static int merge_working_tree(const struct checkout_opts *opts,
new_branch_info->commit ?
&new_branch_info->commit->object.oid :
&new_branch_info->oid, NULL);
- if (opts->overwrite_ignore) {
- topts.dir = xcalloc(1, sizeof(*topts.dir));
- topts.dir->flags |= DIR_SHOW_IGNORED;
- setup_standard_excludes(topts.dir);
- }
+ topts.preserve_ignored = !opts->overwrite_ignore;
tree = parse_tree_indirect(old_branch_info->commit ?
&old_branch_info->commit->object.oid :
the_hash_algo->empty_tree);
@@ -821,9 +846,6 @@ static int merge_working_tree(const struct checkout_opts *opts,
}
}
- if (!active_cache_tree)
- active_cache_tree = cache_tree();
-
if (!cache_tree_fully_valid(active_cache_tree))
cache_tree_update(&the_index, WRITE_TREE_SILENT | WRITE_TREE_REPAIR);
@@ -883,7 +905,9 @@ static void update_refs_for_switch(const struct checkout_opts *opts,
opts->new_branch_log,
opts->quiet,
opts->track);
- new_branch_info->name = opts->new_branch;
+ free(new_branch_info->name);
+ free(new_branch_info->refname);
+ new_branch_info->name = xstrdup(opts->new_branch);
setup_branch_path(new_branch_info);
}
@@ -905,7 +929,7 @@ static void update_refs_for_switch(const struct checkout_opts *opts,
REF_NO_DEREF, UPDATE_REFS_DIE_ON_ERR);
if (!opts->quiet) {
if (old_branch_info->path &&
- advice_detached_head && !opts->force_detach)
+ advice_enabled(ADVICE_DETACHED_HEAD) && !opts->force_detach)
detach_advice(new_branch_info->name);
describe_detached_head(_("HEAD is now at"), new_branch_info->commit);
}
@@ -998,7 +1022,7 @@ static void suggest_reattach(struct commit *commit, struct rev_info *revs)
sb.buf);
strbuf_release(&sb);
- if (advice_detached_head)
+ if (advice_enabled(ADVICE_DETACHED_HEAD))
fprintf(stderr,
Q_(
/* The singular version */
@@ -1051,8 +1075,7 @@ static int switch_branches(const struct checkout_opts *opts,
struct branch_info *new_branch_info)
{
int ret = 0;
- struct branch_info old_branch_info;
- void *path_to_free;
+ struct branch_info old_branch_info = { 0 };
struct object_id rev;
int flag, writeout_error = 0;
int do_merge = 1;
@@ -1060,25 +1083,32 @@ static int switch_branches(const struct checkout_opts *opts,
trace2_cmd_mode("branch");
memset(&old_branch_info, 0, sizeof(old_branch_info));
- old_branch_info.path = path_to_free = resolve_refdup("HEAD", 0, &rev, &flag);
+ old_branch_info.path = resolve_refdup("HEAD", 0, &rev, &flag);
if (old_branch_info.path)
old_branch_info.commit = lookup_commit_reference_gently(the_repository, &rev, 1);
if (!(flag & REF_ISSYMREF))
- old_branch_info.path = NULL;
+ FREE_AND_NULL(old_branch_info.path);
- if (old_branch_info.path)
- skip_prefix(old_branch_info.path, "refs/heads/", &old_branch_info.name);
+ if (old_branch_info.path) {
+ const char *const prefix = "refs/heads/";
+ const char *p;
+ if (skip_prefix(old_branch_info.path, prefix, &p))
+ old_branch_info.name = xstrdup(p);
+ else
+ BUG("should be able to skip past '%s' in '%s'!",
+ prefix, old_branch_info.path);
+ }
if (opts->new_orphan_branch && opts->orphan_from_empty_tree) {
if (new_branch_info->name)
BUG("'switch --orphan' should never accept a commit as starting point");
new_branch_info->commit = NULL;
- new_branch_info->name = "(empty)";
+ new_branch_info->name = xstrdup("(empty)");
do_merge = 1;
}
if (!new_branch_info->name) {
- new_branch_info->name = "HEAD";
+ new_branch_info->name = xstrdup("HEAD");
new_branch_info->commit = old_branch_info.commit;
if (!new_branch_info->commit)
die(_("You are on a branch yet to be born"));
@@ -1091,7 +1121,7 @@ static int switch_branches(const struct checkout_opts *opts,
if (do_merge) {
ret = merge_working_tree(opts, &old_branch_info, new_branch_info, &writeout_error);
if (ret) {
- free(path_to_free);
+ branch_info_release(&old_branch_info);
return ret;
}
}
@@ -1102,7 +1132,8 @@ static int switch_branches(const struct checkout_opts *opts,
update_refs_for_switch(opts, &old_branch_info, new_branch_info);
ret = post_checkout_hook(old_branch_info.commit, new_branch_info->commit, 1);
- free(path_to_free);
+ branch_info_release(&old_branch_info);
+
return ret || writeout_error;
}
@@ -1134,16 +1165,15 @@ static void setup_new_branch_info_and_source_tree(
struct tree **source_tree = &opts->source_tree;
struct object_id branch_rev;
- new_branch_info->name = arg;
+ new_branch_info->name = xstrdup(arg);
setup_branch_path(new_branch_info);
if (!check_refname_format(new_branch_info->path, 0) &&
!read_ref(new_branch_info->path, &branch_rev))
oidcpy(rev, &branch_rev);
- else {
- free((char *)new_branch_info->path);
- new_branch_info->path = NULL; /* not an existing branch */
- }
+ else
+ /* not an existing branch */
+ FREE_AND_NULL(new_branch_info->path);
new_branch_info->commit = lookup_commit_reference_gently(the_repository, rev, 1);
if (!new_branch_info->commit) {
@@ -1169,7 +1199,7 @@ static const char *parse_remote_branch(const char *arg,
}
if (!remote && num_matches > 1) {
- if (advice_checkout_ambiguous_remote_branch_name) {
+ if (advice_enabled(ADVICE_CHECKOUT_AMBIGUOUS_REMOTE_BRANCH_NAME)) {
advise(_("If you meant to check out a remote tracking branch on, e.g. 'origin',\n"
"you can do so by fully qualifying the name with the --track option:\n"
"\n"
@@ -1563,18 +1593,20 @@ static char cb_option = 'b';
static int checkout_main(int argc, const char **argv, const char *prefix,
struct checkout_opts *opts, struct option *options,
- const char * const usagestr[])
+ const char * const usagestr[],
+ struct branch_info *new_branch_info)
{
- struct branch_info new_branch_info;
int parseopt_flags = 0;
- memset(&new_branch_info, 0, sizeof(new_branch_info));
opts->overwrite_ignore = 1;
opts->prefix = prefix;
opts->show_progress = -1;
git_config(git_checkout_config, opts);
+ prepare_repo_settings(the_repository);
+ the_repository->settings.command_requires_full_index = 0;
+
opts->track = BRANCH_TRACK_UNSPECIFIED;
if (!opts->accept_pathspec && !opts->accept_ref)
@@ -1674,7 +1706,7 @@ static int checkout_main(int argc, const char **argv, const char *prefix,
opts->track == BRANCH_TRACK_UNSPECIFIED &&
!opts->new_branch;
int n = parse_branchname_arg(argc, argv, dwim_ok,
- &new_branch_info, opts, &rev);
+ new_branch_info, opts, &rev);
argv += n;
argc -= n;
} else if (!opts->accept_ref && opts->from_treeish) {
@@ -1683,7 +1715,7 @@ static int checkout_main(int argc, const char **argv, const char *prefix,
if (get_oid_mb(opts->from_treeish, &rev))
die(_("could not resolve %s"), opts->from_treeish);
- setup_new_branch_info_and_source_tree(&new_branch_info,
+ setup_new_branch_info_and_source_tree(new_branch_info,
opts, &rev,
opts->from_treeish);
@@ -1703,7 +1735,7 @@ static int checkout_main(int argc, const char **argv, const char *prefix,
* Try to give more helpful suggestion.
* new_branch && argc > 1 will be caught later.
*/
- if (opts->new_branch && argc == 1 && !new_branch_info.commit)
+ if (opts->new_branch && argc == 1 && !new_branch_info->commit)
die(_("'%s' is not a commit and a branch '%s' cannot be created from it"),
argv[0], opts->new_branch);
@@ -1752,11 +1784,10 @@ static int checkout_main(int argc, const char **argv, const char *prefix,
strbuf_release(&buf);
}
- UNLEAK(opts);
if (opts->patch_mode || opts->pathspec.nr)
- return checkout_paths(opts, &new_branch_info);
+ return checkout_paths(opts, new_branch_info);
else
- return checkout_branch(opts, &new_branch_info);
+ return checkout_branch(opts, new_branch_info);
}
int cmd_checkout(int argc, const char **argv, const char *prefix)
@@ -1775,6 +1806,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
OPT_END()
};
int ret;
+ struct branch_info new_branch_info = { 0 };
memset(&opts, 0, sizeof(opts));
opts.dwim_new_local_branch = 1;
@@ -1805,7 +1837,9 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
options = add_checkout_path_options(&opts, options);
ret = checkout_main(argc, argv, prefix, &opts,
- options, checkout_usage);
+ options, checkout_usage, &new_branch_info);
+ branch_info_release(&new_branch_info);
+ clear_pathspec(&opts.pathspec);
FREE_AND_NULL(options);
return ret;
}
@@ -1826,6 +1860,7 @@ int cmd_switch(int argc, const char **argv, const char *prefix)
OPT_END()
};
int ret;
+ struct branch_info new_branch_info = { 0 };
memset(&opts, 0, sizeof(opts));
opts.dwim_new_local_branch = 1;
@@ -1845,7 +1880,8 @@ int cmd_switch(int argc, const char **argv, const char *prefix)
cb_option = 'c';
ret = checkout_main(argc, argv, prefix, &opts,
- options, switch_branch_usage);
+ options, switch_branch_usage, &new_branch_info);
+ branch_info_release(&new_branch_info);
FREE_AND_NULL(options);
return ret;
}
@@ -1867,6 +1903,7 @@ int cmd_restore(int argc, const char **argv, const char *prefix)
OPT_END()
};
int ret;
+ struct branch_info new_branch_info = { 0 };
memset(&opts, 0, sizeof(opts));
opts.accept_ref = 0;
@@ -1882,7 +1919,8 @@ int cmd_restore(int argc, const char **argv, const char *prefix)
options = add_checkout_path_options(&opts, options);
ret = checkout_main(argc, argv, prefix, &opts,
- options, restore_usage);
+ options, restore_usage, &new_branch_info);
+ branch_info_release(&new_branch_info);
FREE_AND_NULL(options);
return ret;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 15:45:16 +0000