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Diffstat (limited to 'builtin/checkout.c')
-rw-r--r--builtin/checkout.c129
1 files changed, 72 insertions, 57 deletions
diff --git a/builtin/checkout.c b/builtin/checkout.c
index e79003f5bf..d287ee6e48 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -22,8 +22,8 @@
#include "argv-array.h"
static const char * const checkout_usage[] = {
- "git checkout [options] <branch>",
- "git checkout [options] [<branch>] -- <file>...",
+ N_("git checkout [options] <branch>"),
+ N_("git checkout [options] [<branch>] -- <file>..."),
NULL,
};
@@ -34,6 +34,7 @@ struct checkout_opts {
int force_detach;
int writeout_stage;
int writeout_error;
+ int overwrite_ignore;
/* not set by parse_options */
int branch_exists;
@@ -72,7 +73,8 @@ static int update_some(const unsigned char *sha1, const char *base, int baselen,
hashcpy(ce->sha1, sha1);
memcpy(ce->name, base, baselen);
memcpy(ce->name + baselen, pathname, len - baselen);
- ce->ce_flags = create_ce_flags(len, 0) | CE_UPDATE;
+ ce->ce_flags = create_ce_flags(0) | CE_UPDATE;
+ ce->ce_namelen = len;
ce->ce_mode = create_ce_mode(mode);
add_cache_entry(ce, ADD_CACHE_OK_TO_ADD | ADD_CACHE_OK_TO_REPLACE);
return 0;
@@ -300,7 +302,7 @@ static int checkout_paths(struct tree *source_tree, const char **pathspec,
commit_locked_index(lock_file))
die(_("unable to write new index file"));
- resolve_ref("HEAD", rev, 0, &flag);
+ read_ref_full("HEAD", rev, 0, &flag);
head = lookup_commit_reference_gently(rev, 1);
errs |= post_checkout_hook(head, head, 0);
@@ -314,8 +316,7 @@ static void show_local_changes(struct object *head, struct diff_options *opts)
init_revisions(&rev, NULL);
rev.diffopt.flags = opts->flags;
rev.diffopt.output_format |= DIFF_FORMAT_NAME_STATUS;
- if (diff_setup_done(&rev.diffopt) < 0)
- die(_("diff_setup_done failed"));
+ diff_setup_done(&rev.diffopt);
add_pending_object(&rev, head, NULL);
run_diff_index(&rev, 0);
}
@@ -342,7 +343,7 @@ static int reset_tree(struct tree *tree, struct checkout_opts *o, int worktree)
opts.reset = 1;
opts.merge = 1;
opts.fn = oneway_merge;
- opts.verbose_update = !o->quiet;
+ opts.verbose_update = !o->quiet && isatty(2);
opts.src_index = &the_index;
opts.dst_index = &the_index;
parse_tree(tree);
@@ -419,11 +420,13 @@ static int merge_working_tree(struct checkout_opts *opts,
topts.update = 1;
topts.merge = 1;
topts.gently = opts->merge && old->commit;
- topts.verbose_update = !opts->quiet;
+ topts.verbose_update = !opts->quiet && isatty(2);
topts.fn = twoway_merge;
- topts.dir = xcalloc(1, sizeof(*topts.dir));
- topts.dir->flags |= DIR_SHOW_IGNORED;
- setup_standard_excludes(topts.dir);
+ if (opts->overwrite_ignore) {
+ topts.dir = xcalloc(1, sizeof(*topts.dir));
+ topts.dir->flags |= DIR_SHOW_IGNORED;
+ setup_standard_excludes(topts.dir);
+ }
tree = parse_tree_indirect(old->commit ?
old->commit->object.sha1 :
EMPTY_TREE_SHA1_BIN);
@@ -511,20 +514,6 @@ static void report_tracking(struct branch_info *new)
strbuf_release(&sb);
}
-static void detach_advice(const char *old_path, const char *new_name)
-{
- const char fmt[] =
- "Note: checking out '%s'.\n\n"
- "You are in 'detached HEAD' state. You can look around, make experimental\n"
- "changes and commit them, and you can discard any commits you make in this\n"
- "state without impacting any branches by performing another checkout.\n\n"
- "If you want to create a new branch to retain commits you create, you may\n"
- "do so (now or later) by using -b with the checkout command again. Example:\n\n"
- " git checkout -b new_branch_name\n\n";
-
- fprintf(stderr, fmt, new_name);
-}
-
static void update_refs_for_switch(struct checkout_opts *opts,
struct branch_info *old,
struct branch_info *new)
@@ -554,6 +543,7 @@ static void update_refs_for_switch(struct checkout_opts *opts,
opts->new_branch_force ? 1 : 0,
opts->new_branch_log,
opts->new_branch_force ? 1 : 0,
+ opts->quiet,
opts->track);
new->name = opts->new_branch;
setup_branch_path(new);
@@ -572,7 +562,7 @@ static void update_refs_for_switch(struct checkout_opts *opts,
REF_NODEREF, DIE_ON_ERR);
if (!opts->quiet) {
if (old->path && advice_detached_head)
- detach_advice(old->path, new->name);
+ detach_advice(new->name);
describe_detached_head(_("HEAD is now at"), new->commit);
}
} else if (new->path) { /* Switch branches. */
@@ -615,7 +605,7 @@ static int add_pending_uninteresting_ref(const char *refname,
const unsigned char *sha1,
int flags, void *cb_data)
{
- add_pending_sha1(cb_data, refname, sha1, flags | UNINTERESTING);
+ add_pending_sha1(cb_data, refname, sha1, UNINTERESTING);
return 0;
}
@@ -682,10 +672,10 @@ static void suggest_reattach(struct commit *commit, struct rev_info *revs)
* HEAD. If it is not reachable from any ref, this is the last chance
* for the user to do so without resorting to reflog.
*/
-static void orphaned_commit_warning(struct commit *commit)
+static void orphaned_commit_warning(struct commit *old, struct commit *new)
{
struct rev_info revs;
- struct object *object = &commit->object;
+ struct object *object = &old->object;
struct object_array refs;
init_revisions(&revs, NULL);
@@ -695,16 +685,17 @@ static void orphaned_commit_warning(struct commit *commit)
add_pending_object(&revs, object, sha1_to_hex(object->sha1));
for_each_ref(add_pending_uninteresting_ref, &revs);
+ add_pending_sha1(&revs, "HEAD", new->object.sha1, UNINTERESTING);
refs = revs.pending;
revs.leak_pending = 1;
if (prepare_revision_walk(&revs))
die(_("internal error in revision walk"));
- if (!(commit->object.flags & UNINTERESTING))
- suggest_reattach(commit, &revs);
+ if (!(old->object.flags & UNINTERESTING))
+ suggest_reattach(old, &revs);
else
- describe_detached_head(_("Previous HEAD position was"), commit);
+ describe_detached_head(_("Previous HEAD position was"), old);
clear_commit_marks_for_object_array(&refs, ALL_REV_FLAGS);
free(refs.objects);
@@ -714,15 +705,14 @@ static int switch_branches(struct checkout_opts *opts, struct branch_info *new)
{
int ret = 0;
struct branch_info old;
+ void *path_to_free;
unsigned char rev[20];
int flag;
memset(&old, 0, sizeof(old));
- old.path = xstrdup(resolve_ref("HEAD", rev, 0, &flag));
+ old.path = path_to_free = resolve_refdup("HEAD", rev, 0, &flag);
old.commit = lookup_commit_reference_gently(rev, 1);
- if (!(flag & REF_ISSYMREF)) {
- free((char *)old.path);
+ if (!(flag & REF_ISSYMREF))
old.path = NULL;
- }
if (old.path && !prefixcmp(old.path, "refs/heads/"))
old.name = old.path + strlen("refs/heads/");
@@ -736,16 +726,18 @@ static int switch_branches(struct checkout_opts *opts, struct branch_info *new)
}
ret = merge_working_tree(opts, &old, new);
- if (ret)
+ if (ret) {
+ free(path_to_free);
return ret;
+ }
if (!opts->quiet && !old.path && old.commit && new->commit != old.commit)
- orphaned_commit_warning(old.commit);
+ orphaned_commit_warning(old.commit, new->commit);
update_refs_for_switch(opts, &old, new);
ret = post_checkout_hook(old.commit, new->commit, 1);
- free((char *)old.path);
+ free(path_to_free);
return ret || opts->writeout_error;
}
@@ -884,7 +876,7 @@ static int parse_branchname_arg(int argc, const char **argv,
setup_branch_path(new);
if (!check_refname_format(new->path, 0) &&
- resolve_ref(new->path, branch_rev, 1, NULL))
+ !read_ref(new->path, branch_rev))
hashcpy(rev, branch_rev);
else
new->path = NULL; /* not an existing branch */
@@ -918,6 +910,19 @@ static int parse_branchname_arg(int argc, const char **argv,
return argcount;
}
+static int switch_unborn_to_new_branch(struct checkout_opts *opts)
+{
+ int status;
+ struct strbuf branch_ref = STRBUF_INIT;
+
+ if (!opts->new_branch)
+ die(_("You are on a branch yet to be born"));
+ strbuf_addf(&branch_ref, "refs/heads/%s", opts->new_branch);
+ status = create_symref("HEAD", branch_ref.buf, "checkout -b");
+ strbuf_release(&branch_ref);
+ return status;
+}
+
int cmd_checkout(int argc, const char **argv, const char *prefix)
{
struct checkout_opts opts;
@@ -928,33 +933,35 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
int patch_mode = 0;
int dwim_new_local_branch = 1;
struct option options[] = {
- OPT__QUIET(&opts.quiet, "suppress progress reporting"),
- OPT_STRING('b', NULL, &opts.new_branch, "branch",
- "create and checkout a new branch"),
- OPT_STRING('B', NULL, &opts.new_branch_force, "branch",
- "create/reset and checkout a branch"),
- OPT_BOOLEAN('l', NULL, &opts.new_branch_log, "create reflog for new branch"),
- OPT_BOOLEAN(0, "detach", &opts.force_detach, "detach the HEAD at named commit"),
- OPT_SET_INT('t', "track", &opts.track, "set upstream info for new branch",
+ OPT__QUIET(&opts.quiet, N_("suppress progress reporting")),
+ OPT_STRING('b', NULL, &opts.new_branch, N_("branch"),
+ N_("create and checkout a new branch")),
+ OPT_STRING('B', NULL, &opts.new_branch_force, N_("branch"),
+ N_("create/reset and checkout a branch")),
+ OPT_BOOLEAN('l', NULL, &opts.new_branch_log, N_("create reflog for new branch")),
+ OPT_BOOLEAN(0, "detach", &opts.force_detach, N_("detach the HEAD at named commit")),
+ OPT_SET_INT('t', "track", &opts.track, N_("set upstream info for new branch"),
BRANCH_TRACK_EXPLICIT),
- OPT_STRING(0, "orphan", &opts.new_orphan_branch, "new branch", "new unparented branch"),
- OPT_SET_INT('2', "ours", &opts.writeout_stage, "checkout our version for unmerged files",
+ OPT_STRING(0, "orphan", &opts.new_orphan_branch, N_("new branch"), N_("new unparented branch")),
+ OPT_SET_INT('2', "ours", &opts.writeout_stage, N_("checkout our version for unmerged files"),
2),
- OPT_SET_INT('3', "theirs", &opts.writeout_stage, "checkout their version for unmerged files",
+ OPT_SET_INT('3', "theirs", &opts.writeout_stage, N_("checkout their version for unmerged files"),
3),
- OPT__FORCE(&opts.force, "force checkout (throw away local modifications)"),
- OPT_BOOLEAN('m', "merge", &opts.merge, "perform a 3-way merge with the new branch"),
- OPT_STRING(0, "conflict", &conflict_style, "style",
- "conflict style (merge or diff3)"),
- OPT_BOOLEAN('p', "patch", &patch_mode, "select hunks interactively"),
+ OPT__FORCE(&opts.force, N_("force checkout (throw away local modifications)")),
+ OPT_BOOLEAN('m', "merge", &opts.merge, N_("perform a 3-way merge with the new branch")),
+ OPT_BOOLEAN(0, "overwrite-ignore", &opts.overwrite_ignore, N_("update ignored files (default)")),
+ OPT_STRING(0, "conflict", &conflict_style, N_("style"),
+ N_("conflict style (merge or diff3)")),
+ OPT_BOOLEAN('p', "patch", &patch_mode, N_("select hunks interactively")),
{ OPTION_BOOLEAN, 0, "guess", &dwim_new_local_branch, NULL,
- "second guess 'git checkout no-such-branch'",
+ N_("second guess 'git checkout no-such-branch'"),
PARSE_OPT_NOARG | PARSE_OPT_HIDDEN },
OPT_END(),
};
memset(&opts, 0, sizeof(opts));
memset(&new, 0, sizeof(new));
+ opts.overwrite_ignore = 1;
gitmodules_config();
git_config(git_checkout_config, &opts);
@@ -1087,5 +1094,13 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
if (opts.writeout_stage)
die(_("--ours/--theirs is incompatible with switching branches."));
+ if (!new.commit && opts.new_branch) {
+ unsigned char rev[20];
+ int flag;
+
+ if (!read_ref_full("HEAD", rev, 0, &flag) &&
+ (flag & REF_ISSYMREF) && is_null_sha1(rev))
+ return switch_unborn_to_new_branch(&opts);
+ }
return switch_branches(&opts, &new);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-28 07:57:24 +0000