#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,
};
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;
return error(_("path '%s' does not have their version"), ce->name);
}
-static int check_all_stages(struct cache_entry *ce, int pos)
+static int check_stages(unsigned stages, struct cache_entry *ce, int pos)
{
- if (ce_stage(ce) != 1 ||
- active_nr <= pos + 2 ||
- strcmp(active_cache[pos+1]->name, ce->name) ||
- ce_stage(active_cache[pos+1]) != 2 ||
- strcmp(active_cache[pos+2]->name, ce->name) ||
- ce_stage(active_cache[pos+2]) != 3)
- return error(_("path '%s' does not have all three versions"),
- ce->name);
+ unsigned seen = 0;
+ const char *name = ce->name;
+
+ while (pos < active_nr) {
+ ce = active_cache[pos];
+ if (strcmp(name, ce->name))
+ break;
+ seen |= (1 << ce_stage(ce));
+ pos++;
+ }
+ if ((stages & seen) != stages)
+ return error(_("path '%s' does not have all necessary versions"),
+ name);
return 0;
}
int status;
unsigned char sha1[20];
mmbuffer_t result_buf;
+ unsigned char threeway[3][20];
+ unsigned mode = 0;
+
+ memset(threeway, 0, sizeof(threeway));
+ while (pos < active_nr) {
+ int stage;
+ stage = ce_stage(ce);
+ if (!stage || strcmp(path, ce->name))
+ break;
+ hashcpy(threeway[stage - 1], ce->sha1);
+ if (stage == 2)
+ mode = create_ce_mode(ce->ce_mode);
+ pos++;
+ ce = active_cache[pos];
+ }
+ if (is_null_sha1(threeway[1]) || is_null_sha1(threeway[2]))
+ return error(_("path '%s' does not have necessary versions"), path);
- if (ce_stage(ce) != 1 ||
- active_nr <= pos + 2 ||
- strcmp(active_cache[pos+1]->name, path) ||
- ce_stage(active_cache[pos+1]) != 2 ||
- strcmp(active_cache[pos+2]->name, path) ||
- ce_stage(active_cache[pos+2]) != 3)
- return error(_("path '%s' does not have all 3 versions"), path);
-
- read_mmblob(&ancestor, active_cache[pos]->sha1);
- read_mmblob(&ours, active_cache[pos+1]->sha1);
- read_mmblob(&theirs, active_cache[pos+2]->sha1);
+ read_mmblob(&ancestor, threeway[0]);
+ read_mmblob(&ours, threeway[1]);
+ read_mmblob(&theirs, threeway[2]);
/*
* NEEDSWORK: re-create conflicts from merges with
if (write_sha1_file(result_buf.ptr, result_buf.size,
blob_type, sha1))
die(_("Unable to add merge result for '%s'"), path);
- ce = make_cache_entry(create_ce_mode(active_cache[pos+1]->ce_mode),
- sha1,
- path, 2, 0);
+ ce = make_cache_entry(mode, sha1, path, 2, 0);
if (!ce)
die(_("make_cache_entry failed for path '%s'"), path);
status = checkout_entry(ce, state, NULL);
} else if (stage) {
errs |= check_stage(stage, ce, pos);
} else if (opts->merge) {
- errs |= check_all_stages(ce, pos);
+ errs |= check_stages((1<<2) | (1<<3), ce, pos);
} else {
errs = 1;
error(_("path '%s' is unmerged"), ce->name);
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);
}
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);
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;
if (opts->overwrite_ignore) {
topts.dir = xcalloc(1, sizeof(*topts.dir));
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)
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);
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. */
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;
}
* 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);
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);
}
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);
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;
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_BOOLEAN(0, "overwrite-ignore", &opts.overwrite_ignore, "update ignored files (default)"),
- 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(),
};
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);
}