diff options
Diffstat (limited to 'builtin/checkout.c')
| -rw-r--r-- | builtin/checkout.c | 47 |
1 files changed, 36 insertions, 11 deletions
diff --git a/builtin/checkout.c b/builtin/checkout.c index e79003f..a76aa2a 100644 --- a/builtin/checkout.c +++ b/builtin/checkout.c @@ -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; @@ -300,7 +301,7 @@ 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); @@ -421,9 +422,11 @@ static int merge_working_tree(struct checkout_opts *opts, topts.gently = opts->merge && old->commit; topts.verbose_update = !opts->quiet; 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); @@ -714,15 +717,14 @@ 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/"); @@ -736,8 +738,10 @@ 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); @@ -745,7 +749,7 @@ static int switch_branches(struct checkout_opts *opts, struct branch_info *new) 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 +888,7 @@ 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 +922,17 @@ 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; + + 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; @@ -944,6 +959,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) 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"), @@ -955,6 +971,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) memset(&opts, 0, sizeof(opts)); memset(&new, 0, sizeof(new)); + opts.overwrite_ignore = 1; gitmodules_config(); git_config(git_checkout_config, &opts); @@ -1087,5 +1104,13 @@ 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) { + 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); } |