diff options
| -rw-r--r-- | Documentation/config.txt | 26 | ||||
| -rw-r--r-- | Documentation/git-checkout.txt | 9 | ||||
| -rw-r--r-- | Documentation/git-worktree.txt | 9 | ||||
| -rw-r--r-- | advice.c | 2 | ||||
| -rw-r--r-- | advice.h | 1 | ||||
| -rw-r--r-- | builtin/checkout.c | 41 | ||||
| -rw-r--r-- | builtin/worktree.c | 4 | ||||
| -rw-r--r-- | checkout.c | 37 | ||||
| -rw-r--r-- | checkout.h | 4 | ||||
| -rwxr-xr-x | t/t2024-checkout-dwim.sh | 59 | ||||
| -rwxr-xr-x | t/t2025-worktree-add.sh | 21 |
11 files changed, 197 insertions, 16 deletions
diff --git a/Documentation/config.txt b/Documentation/config.txt index 3fdc6f0327..44df580a81 100644 --- a/Documentation/config.txt +++ b/Documentation/config.txt @@ -344,6 +344,16 @@ advice.*:: Advice shown when you used linkgit:git-checkout[1] to move to the detach HEAD state, to instruct how to create a local branch after the fact. + checkoutAmbiguousRemoteBranchName:: + Advice shown when the argument to + linkgit:git-checkout[1] ambiguously resolves to a + remote tracking branch on more than one remote in + situations where an unambiguous argument would have + otherwise caused a remote-tracking branch to be + checked out. See the `checkout.defaultRemote` + configuration variable for how to set a given remote + to used by default in some situations where this + advice would be printed. amWorkDir:: Advice that shows the location of the patch file when linkgit:git-am[1] fails to apply it. @@ -1104,6 +1114,22 @@ browser.<tool>.path:: browse HTML help (see `-w` option in linkgit:git-help[1]) or a working repository in gitweb (see linkgit:git-instaweb[1]). +checkout.defaultRemote:: + When you run 'git checkout <something>' and only have one + remote, it may implicitly fall back on checking out and + tracking e.g. 'origin/<something>'. This stops working as soon + as you have more than one remote with a '<something>' + reference. This setting allows for setting the name of a + preferred remote that should always win when it comes to + disambiguation. The typical use-case is to set this to + `origin`. ++ +Currently this is used by linkgit:git-checkout[1] when 'git checkout +<something>' will checkout the '<something>' branch on another remote, +and by linkgit:git-worktree[1] when 'git worktree add' refers to a +remote branch. This setting might be used for other checkout-like +commands or functionality in the future. + clean.requireForce:: A boolean to make git-clean do nothing unless given -f, -i or -n. Defaults to true. diff --git a/Documentation/git-checkout.txt b/Documentation/git-checkout.txt index ca5fc9c798..9db02928c4 100644 --- a/Documentation/git-checkout.txt +++ b/Documentation/git-checkout.txt @@ -38,6 +38,15 @@ equivalent to $ git checkout -b <branch> --track <remote>/<branch> ------------ + +If the branch exists in multiple remotes and one of them is named by +the `checkout.defaultRemote` configuration variable, we'll use that +one for the purposes of disambiguation, even if the `<branch>` isn't +unique across all remotes. Set it to +e.g. `checkout.defaultRemote=origin` to always checkout remote +branches from there if `<branch>` is ambiguous but exists on the +'origin' remote. See also `checkout.defaultRemote` in +linkgit:git-config[1]. ++ You could omit <branch>, in which case the command degenerates to "check out the current branch", which is a glorified no-op with rather expensive side-effects to show only the tracking information, diff --git a/Documentation/git-worktree.txt b/Documentation/git-worktree.txt index afc6576a14..9c26be40f4 100644 --- a/Documentation/git-worktree.txt +++ b/Documentation/git-worktree.txt @@ -60,6 +60,15 @@ with a matching name, treat as equivalent to: $ git worktree add --track -b <branch> <path> <remote>/<branch> ------------ + +If the branch exists in multiple remotes and one of them is named by +the `checkout.defaultRemote` configuration variable, we'll use that +one for the purposes of disambiguation, even if the `<branch>` isn't +unique across all remotes. Set it to +e.g. `checkout.defaultRemote=origin` to always checkout remote +branches from there if `<branch>` is ambiguous but exists on the +'origin' remote. See also `checkout.defaultRemote` in +linkgit:git-config[1]. ++ If `<commit-ish>` is omitted and neither `-b` nor `-B` nor `--detach` used, then, as a convenience, the new worktree is associated with a branch (call it `<branch>`) named after `$(basename <path>)`. If `<branch>` @@ -23,6 +23,7 @@ int advice_add_embedded_repo = 1; int advice_ignored_hook = 1; int advice_waiting_for_editor = 1; int advice_graft_file_deprecated = 1; +int advice_checkout_ambiguous_remote_branch_name = 1; static int advice_use_color = -1; static char advice_colors[][COLOR_MAXLEN] = { @@ -75,6 +76,7 @@ static struct { { "ignoredHook", &advice_ignored_hook }, { "waitingForEditor", &advice_waiting_for_editor }, { "graftFileDeprecated", &advice_graft_file_deprecated }, + { "checkoutAmbiguousRemoteBranchName", &advice_checkout_ambiguous_remote_branch_name }, /* make this an alias for backward compatibility */ { "pushNonFastForward", &advice_push_update_rejected } @@ -23,6 +23,7 @@ extern int advice_add_embedded_repo; extern int advice_ignored_hook; extern int advice_waiting_for_editor; extern int advice_graft_file_deprecated; +extern int advice_checkout_ambiguous_remote_branch_name; int git_default_advice_config(const char *var, const char *value); __attribute__((format (printf, 1, 2))) diff --git a/builtin/checkout.c b/builtin/checkout.c index 28627650cd..2de10d28c7 100644 --- a/builtin/checkout.c +++ b/builtin/checkout.c @@ -23,6 +23,7 @@ #include "resolve-undo.h" #include "submodule-config.h" #include "submodule.h" +#include "advice.h" static const char * const checkout_usage[] = { N_("git checkout [<options>] <branch>"), @@ -879,7 +880,8 @@ static int parse_branchname_arg(int argc, const char **argv, int dwim_new_local_branch_ok, struct branch_info *new_branch_info, struct checkout_opts *opts, - struct object_id *rev) + struct object_id *rev, + int *dwim_remotes_matched) { struct tree **source_tree = &opts->source_tree; const char **new_branch = &opts->new_branch; @@ -911,8 +913,10 @@ static int parse_branchname_arg(int argc, const char **argv, * (b) If <something> is _not_ a commit, either "--" is present * or <something> is not a path, no -t or -b was given, and * and there is a tracking branch whose name is <something> - * in one and only one remote, then this is a short-hand to - * fork local <something> from that remote-tracking branch. + * in one and only one remote (or if the branch exists on the + * remote named in checkout.defaultRemote), then this is a + * short-hand to fork local <something> from that + * remote-tracking branch. * * (c) Otherwise, if "--" is present, treat it like case (1). * @@ -973,7 +977,8 @@ static int parse_branchname_arg(int argc, const char **argv, recover_with_dwim = 0; if (recover_with_dwim) { - const char *remote = unique_tracking_name(arg, rev); + const char *remote = unique_tracking_name(arg, rev, + dwim_remotes_matched); if (remote) { *new_branch = arg; arg = remote; @@ -1110,6 +1115,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) struct branch_info new_branch_info; char *conflict_style = NULL; int dwim_new_local_branch = 1; + int dwim_remotes_matched = 0; struct option options[] = { OPT__QUIET(&opts.quiet, N_("suppress progress reporting")), OPT_STRING('b', NULL, &opts.new_branch, N_("branch"), @@ -1222,7 +1228,8 @@ int cmd_checkout(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, + &dwim_remotes_matched); argv += n; argc -= n; } @@ -1264,8 +1271,26 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) } UNLEAK(opts); - if (opts.patch_mode || opts.pathspec.nr) - return checkout_paths(&opts, new_branch_info.name); - else + if (opts.patch_mode || opts.pathspec.nr) { + int ret = checkout_paths(&opts, new_branch_info.name); + if (ret && dwim_remotes_matched > 1 && + advice_checkout_ambiguous_remote_branch_name) + advise(_("'%s' matched more than one remote tracking branch.\n" + "We found %d remotes with a reference that matched. So we fell back\n" + "on trying to resolve the argument as a path, but failed there too!\n" + "\n" + "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" + " git checkout --track origin/<name>\n" + "\n" + "If you'd like to always have checkouts of an ambiguous <name> prefer\n" + "one remote, e.g. the 'origin' remote, consider setting\n" + "checkout.defaultRemote=origin in your config."), + argv[0], + dwim_remotes_matched); + return ret; + } else { return checkout_branch(&opts, &new_branch_info); + } } diff --git a/builtin/worktree.c b/builtin/worktree.c index 5c7d2bb180..a763dbdccb 100644 --- a/builtin/worktree.c +++ b/builtin/worktree.c @@ -412,7 +412,7 @@ static const char *dwim_branch(const char *path, const char **new_branch) if (guess_remote) { struct object_id oid; const char *remote = - unique_tracking_name(*new_branch, &oid); + unique_tracking_name(*new_branch, &oid, NULL); return remote; } return NULL; @@ -484,7 +484,7 @@ static int add(int ac, const char **av, const char *prefix) commit = lookup_commit_reference_by_name(branch); if (!commit) { - remote = unique_tracking_name(branch, &oid); + remote = unique_tracking_name(branch, &oid, NULL); if (remote) { new_branch = branch; branch = remote; diff --git a/checkout.c b/checkout.c index bdefc888ba..c72e9f9773 100644 --- a/checkout.c +++ b/checkout.c @@ -2,14 +2,20 @@ #include "remote.h" #include "refspec.h" #include "checkout.h" +#include "config.h" struct tracking_name_data { /* const */ char *src_ref; char *dst_ref; struct object_id *dst_oid; - int unique; + int num_matches; + const char *default_remote; + char *default_dst_ref; + struct object_id *default_dst_oid; }; +#define TRACKING_NAME_DATA_INIT { NULL, NULL, NULL, 0, NULL, NULL, NULL } + static int check_tracking_name(struct remote *remote, void *cb_data) { struct tracking_name_data *cb = cb_data; @@ -21,24 +27,45 @@ static int check_tracking_name(struct remote *remote, void *cb_data) free(query.dst); return 0; } + cb->num_matches++; + if (cb->default_remote && !strcmp(remote->name, cb->default_remote)) { + struct object_id *dst = xmalloc(sizeof(*cb->default_dst_oid)); + cb->default_dst_ref = xstrdup(query.dst); + oidcpy(dst, cb->dst_oid); + cb->default_dst_oid = dst; + } if (cb->dst_ref) { free(query.dst); - cb->unique = 0; return 0; } cb->dst_ref = query.dst; return 0; } -const char *unique_tracking_name(const char *name, struct object_id *oid) +const char *unique_tracking_name(const char *name, struct object_id *oid, + int *dwim_remotes_matched) { - struct tracking_name_data cb_data = { NULL, NULL, NULL, 1 }; + struct tracking_name_data cb_data = TRACKING_NAME_DATA_INIT; + const char *default_remote = NULL; + if (!git_config_get_string_const("checkout.defaultremote", &default_remote)) + cb_data.default_remote = default_remote; cb_data.src_ref = xstrfmt("refs/heads/%s", name); cb_data.dst_oid = oid; for_each_remote(check_tracking_name, &cb_data); + if (dwim_remotes_matched) + *dwim_remotes_matched = cb_data.num_matches; free(cb_data.src_ref); - if (cb_data.unique) + free((char *)default_remote); + if (cb_data.num_matches == 1) { + free(cb_data.default_dst_ref); + free(cb_data.default_dst_oid); return cb_data.dst_ref; + } free(cb_data.dst_ref); + if (cb_data.default_dst_ref) { + oidcpy(oid, cb_data.default_dst_oid); + free(cb_data.default_dst_oid); + return cb_data.default_dst_ref; + } return NULL; } diff --git a/checkout.h b/checkout.h index 9980711179..6b2073310c 100644 --- a/checkout.h +++ b/checkout.h @@ -8,6 +8,8 @@ * tracking branch. Return the name of the remote if such a branch * exists, NULL otherwise. */ -extern const char *unique_tracking_name(const char *name, struct object_id *oid); +extern const char *unique_tracking_name(const char *name, + struct object_id *oid, + int *dwim_remotes_matched); #endif /* CHECKOUT_H */ diff --git a/t/t2024-checkout-dwim.sh b/t/t2024-checkout-dwim.sh index 3e5ac81bd2..26dc3f1fc0 100755 --- a/t/t2024-checkout-dwim.sh +++ b/t/t2024-checkout-dwim.sh @@ -23,6 +23,12 @@ test_branch_upstream () { test_cmp expect.upstream actual.upstream } +status_uno_is_clean () { + >status.expect && + git status -uno --porcelain >status.actual && + test_cmp status.expect status.actual +} + test_expect_success 'setup' ' test_commit my_master && git init repo_a && @@ -55,6 +61,7 @@ test_expect_success 'checkout of non-existing branch fails' ' test_might_fail git branch -D xyzzy && test_must_fail git checkout xyzzy && + status_uno_is_clean && test_must_fail git rev-parse --verify refs/heads/xyzzy && test_branch master ' @@ -64,15 +71,47 @@ test_expect_success 'checkout of branch from multiple remotes fails #1' ' test_might_fail git branch -D foo && test_must_fail git checkout foo && + status_uno_is_clean && test_must_fail git rev-parse --verify refs/heads/foo && test_branch master ' +test_expect_success 'checkout of branch from multiple remotes fails with advice' ' + git checkout -B master && + test_might_fail git branch -D foo && + test_must_fail git checkout foo 2>stderr && + test_branch master && + status_uno_is_clean && + test_i18ngrep "^hint: " stderr && + test_must_fail git -c advice.checkoutAmbiguousRemoteBranchName=false \ + checkout foo 2>stderr && + test_branch master && + status_uno_is_clean && + test_i18ngrep ! "^hint: " stderr && + # Make sure the likes of checkout -p do not print this hint + git checkout -p foo 2>stderr && + test_i18ngrep ! "^hint: " stderr && + status_uno_is_clean +' + +test_expect_success 'checkout of branch from multiple remotes succeeds with checkout.defaultRemote #1' ' + git checkout -B master && + status_uno_is_clean && + test_might_fail git branch -D foo && + + git -c checkout.defaultRemote=repo_a checkout foo && + status_uno_is_clean && + test_branch foo && + test_cmp_rev remotes/repo_a/foo HEAD && + test_branch_upstream foo repo_a foo +' + test_expect_success 'checkout of branch from a single remote succeeds #1' ' git checkout -B master && test_might_fail git branch -D bar && git checkout bar && + status_uno_is_clean && test_branch bar && test_cmp_rev remotes/repo_a/bar HEAD && test_branch_upstream bar repo_a bar @@ -83,6 +122,7 @@ test_expect_success 'checkout of branch from a single remote succeeds #2' ' test_might_fail git branch -D baz && git checkout baz && + status_uno_is_clean && test_branch baz && test_cmp_rev remotes/other_b/baz HEAD && test_branch_upstream baz repo_b baz @@ -90,6 +130,7 @@ test_expect_success 'checkout of branch from a single remote succeeds #2' ' test_expect_success '--no-guess suppresses branch auto-vivification' ' git checkout -B master && + status_uno_is_clean && test_might_fail git branch -D bar && test_must_fail git checkout --no-guess bar && @@ -99,6 +140,7 @@ test_expect_success '--no-guess suppresses branch auto-vivification' ' test_expect_success 'setup more remotes with unconventional refspecs' ' git checkout -B master && + status_uno_is_clean && git init repo_c && ( cd repo_c && @@ -128,27 +170,33 @@ test_expect_success 'setup more remotes with unconventional refspecs' ' test_expect_success 'checkout of branch from multiple remotes fails #2' ' git checkout -B master && + status_uno_is_clean && test_might_fail git branch -D bar && test_must_fail git checkout bar && + status_uno_is_clean && test_must_fail git rev-parse --verify refs/heads/bar && test_branch master ' test_expect_success 'checkout of branch from multiple remotes fails #3' ' git checkout -B master && + status_uno_is_clean && test_might_fail git branch -D baz && test_must_fail git checkout baz && + status_uno_is_clean && test_must_fail git rev-parse --verify refs/heads/baz && test_branch master ' test_expect_success 'checkout of branch from a single remote succeeds #3' ' git checkout -B master && + status_uno_is_clean && test_might_fail git branch -D spam && git checkout spam && + status_uno_is_clean && test_branch spam && test_cmp_rev refs/remotes/extra_dir/repo_c/extra_dir/spam HEAD && test_branch_upstream spam repo_c spam @@ -156,9 +204,11 @@ test_expect_success 'checkout of branch from a single remote succeeds #3' ' test_expect_success 'checkout of branch from a single remote succeeds #4' ' git checkout -B master && + status_uno_is_clean && test_might_fail git branch -D eggs && git checkout eggs && + status_uno_is_clean && test_branch eggs && test_cmp_rev refs/repo_d/eggs HEAD && test_branch_upstream eggs repo_d eggs @@ -166,32 +216,38 @@ test_expect_success 'checkout of branch from a single remote succeeds #4' ' test_expect_success 'checkout of branch with a file having the same name fails' ' git checkout -B master && + status_uno_is_clean && test_might_fail git branch -D spam && >spam && test_must_fail git checkout spam && + status_uno_is_clean && test_must_fail git rev-parse --verify refs/heads/spam && test_branch master ' test_expect_success 'checkout of branch with a file in subdir having the same name fails' ' git checkout -B master && + status_uno_is_clean && test_might_fail git branch -D spam && >spam && mkdir sub && mv spam sub/spam && test_must_fail git -C sub checkout spam && + status_uno_is_clean && test_must_fail git rev-parse --verify refs/heads/spam && test_branch master ' test_expect_success 'checkout <branch> -- succeeds, even if a file with the same name exists' ' git checkout -B master && + status_uno_is_clean && test_might_fail git branch -D spam && >spam && git checkout spam -- && + status_uno_is_clean && test_branch spam && test_cmp_rev refs/remotes/extra_dir/repo_c/extra_dir/spam HEAD && test_branch_upstream spam repo_c spam @@ -200,6 +256,7 @@ test_expect_success 'checkout <branch> -- succeeds, even if a file with the same test_expect_success 'loosely defined local base branch is reported correctly' ' git checkout master && + status_uno_is_clean && git branch strict && git branch loose && git commit --allow-empty -m "a bit more" && @@ -210,7 +267,9 @@ test_expect_success 'loosely defined local base branch is reported correctly' ' test_config branch.loose.merge master && git checkout strict | sed -e "s/strict/BRANCHNAME/g" >expect && + status_uno_is_clean && git checkout loose | sed -e "s/loose/BRANCHNAME/g" >actual && + status_uno_is_clean && test_cmp expect actual ' diff --git a/t/t2025-worktree-add.sh b/t/t2025-worktree-add.sh index d2e49f7632..be6e093142 100755 --- a/t/t2025-worktree-add.sh +++ b/t/t2025-worktree-add.sh @@ -402,6 +402,27 @@ test_expect_success '"add" <path> <branch> dwims' ' ) ' +test_expect_success '"add" <path> <branch> dwims with checkout.defaultRemote' ' + test_when_finished rm -rf repo_upstream repo_dwim foo && + setup_remote_repo repo_upstream repo_dwim && + git init repo_dwim && + ( + cd repo_dwim && + git remote add repo_upstream2 ../repo_upstream && + git fetch repo_upstream2 && + test_must_fail git worktree add ../foo foo && + git -c checkout.defaultRemote=repo_upstream worktree add ../foo foo && + >status.expect && + git status -uno --porcelain >status.actual && + test_cmp status.expect status.actual + ) && + ( + cd foo && + test_branch_upstream foo repo_upstream foo && + test_cmp_rev refs/remotes/repo_upstream/foo refs/heads/foo + ) +' + test_expect_success 'git worktree add does not match remote' ' test_when_finished rm -rf repo_a repo_b foo && setup_remote_repo repo_a repo_b && |