From: Jacob Abel <jacobabel@nullpo.dev>
To: git@vger.kernel.org
Cc: "Jacob Abel" <jacobabel@nullpo.dev>,
"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>,
"Eric Sunshine" <sunshine@sunshineco.com>,
"Junio C Hamano" <gitster@pobox.com>,
"Phillip Wood" <phillip.wood123@gmail.com>,
"Rubén Justo" <rjusto@gmail.com>, "Taylor Blau" <me@ttaylorr.com>,
rsbecker@nexbridge.com
Subject: [RESEND PATCH v10 7/8] worktree add: extend DWIM to infer --orphan
Date: Wed, 17 May 2023 21:48:58 +0000 [thread overview]
Message-ID: <20230517214711.12467-8-jacobabel@nullpo.dev> (raw)
In-Reply-To: <20230517214711.12467-1-jacobabel@nullpo.dev>
Extend DWIM to try to infer `--orphan` when in an empty repository. i.e.
a repository with an invalid/unborn HEAD, no local branches, and if
`--guess-remote` is used then no remote branches.
This behavior is equivalent to `git switch -c` or `git checkout -b` in
an empty repository.
Also warn the user (overriden with `-f`/`--force`) when they likely
intend to checkout a remote branch to the worktree but have not yet
fetched from the remote. i.e. when using `--guess-remote` and there is a
remote but no local or remote refs.
Current Behavior:
% git --no-pager branch --list --remotes
% git remote
origin
% git workree add ../main
hint: If you meant to create a worktree containing a new orphan branch
[...]
hint: Disable this message with "git config advice.worktreeAddOrphan false"
fatal: invalid reference: HEAD
% git workree add --guess-remote ../main
hint: If you meant to create a worktree containing a new orphan branch
[...]
hint: Disable this message with "git config advice.worktreeAddOrphan false"
fatal: invalid reference: HEAD
% git fetch --quiet
% git --no-pager branch --list --remotes
origin/HEAD -> origin/main
origin/main
% git workree add --guess-remote ../main
Preparing worktree (new branch 'main')
branch 'main' set up to track 'origin/main'.
HEAD is now at dadc8e6dac commit message
%
New Behavior:
% git --no-pager branch --list --remotes
% git remote
origin
% git workree add ../main
No possible source branch, inferring '--orphan'
Preparing worktree (new branch 'main')
% git worktree remove ../main
% git workree add --guess-remote ../main
fatal: No local or remote refs exist despite at least one remote
present, stopping; use 'add -f' to overide or fetch a remote first
% git workree add --guess-remote -f ../main
No possible source branch, inferring '--orphan'
Preparing worktree (new branch 'main')
% git worktree remove ../main
% git fetch --quiet
% git --no-pager branch --list --remotes
origin/HEAD -> origin/main
origin/main
% git workree add --guess-remote ../main
Preparing worktree (new branch 'main')
branch 'main' set up to track 'origin/main'.
HEAD is now at dadc8e6dac commit message
%
Signed-off-by: Jacob Abel <jacobabel@nullpo.dev>
---
Documentation/git-worktree.txt | 10 +
builtin/worktree.c | 114 +++++++++++-
t/t2400-worktree-add.sh | 326 +++++++++++++++++++++++++++++++++
3 files changed, 449 insertions(+), 1 deletion(-)
diff --git a/Documentation/git-worktree.txt b/Documentation/git-worktree.txt
index 485d865eb2..a4fbf5e838 100644
--- a/Documentation/git-worktree.txt
+++ b/Documentation/git-worktree.txt
@@ -95,6 +95,16 @@ exist, a new branch based on `HEAD` is automatically created as if
`-b <branch>` was given. If `<branch>` does exist, it will be checked out
in the new worktree, if it's not checked out anywhere else, otherwise the
command will refuse to create the worktree (unless `--force` is used).
++
+If `<commit-ish>` is omitted, neither `--detach`, or `--orphan` is
+used, and there are no valid local branches (or remote branches if
+`--guess-remote` is specified) then, as a convenience, the new worktree is
+associated with a new orphan branch named `<branch>` (after
+`$(basename <path>)` if neither `-b` or `-B` is used) as if `--orphan` was
+passed to the command. In the event the repository has a remote and
+`--guess-remote` is used, but no remote or local branches exist, then the
+command fails with a warning reminding the user to fetch from their remote
+first (or override by using `-f/--force`).
list::
diff --git a/builtin/worktree.c b/builtin/worktree.c
index 15bdb380c7..093b2cb032 100644
--- a/builtin/worktree.c
+++ b/builtin/worktree.c
@@ -12,6 +12,7 @@
#include "strvec.h"
#include "branch.h"
#include "refs.h"
+#include "remote.h"
#include "run-command.h"
#include "hook.h"
#include "sigchain.h"
@@ -40,6 +41,9 @@
#define BUILTIN_WORKTREE_UNLOCK_USAGE \
N_("git worktree unlock <worktree>")
+#define WORKTREE_ADD_DWIM_ORPHAN_INFER_TEXT \
+ _("No possible source branch, inferring '--orphan'")
+
#define WORKTREE_ADD_ORPHAN_WITH_DASH_B_HINT_TEXT \
_("If you meant to create a worktree containing a new orphan branch\n" \
"(branch with no commits) for this repository, you can do so\n" \
@@ -613,6 +617,107 @@ static void print_preparing_worktree_line(int detach,
}
}
+/**
+ * Callback to short circuit iteration over refs on the first reference
+ * corresponding to a valid oid.
+ *
+ * Returns 0 on failure and non-zero on success.
+ */
+static int first_valid_ref(const char *refname,
+ const struct object_id *oid,
+ int flags,
+ void *cb_data)
+{
+ return 1;
+}
+
+/**
+ * Verifies HEAD and determines whether there exist any valid local references.
+ *
+ * - Checks whether HEAD points to a valid reference.
+ *
+ * - Checks whether any valid local branches exist.
+ *
+ * Returns 1 if any of the previous checks are true, otherwise returns 0.
+ */
+static int can_use_local_refs(const struct add_opts *opts)
+{
+ if (head_ref(first_valid_ref, NULL)) {
+ return 1;
+ } else if (for_each_branch_ref(first_valid_ref, NULL)) {
+ return 1;
+ }
+ return 0;
+}
+
+/**
+ * Reports whether the necessary flags were set and whether the repository has
+ * remote references to attempt DWIM tracking of upstream branches.
+ *
+ * 1. Checks that `--guess-remote` was used or `worktree.guessRemote = true`.
+ *
+ * 2. Checks whether any valid remote branches exist.
+ *
+ * 3. Checks that there exists at least one remote and emits a warning/error
+ * if both checks 1. and 2. are false (can be bypassed with `--force`).
+ *
+ * Returns 1 if checks 1. and 2. are true, otherwise 0.
+ */
+static int can_use_remote_refs(const struct add_opts *opts)
+{
+ if (!guess_remote) {
+ if (!opts->quiet)
+ fprintf_ln(stderr, WORKTREE_ADD_DWIM_ORPHAN_INFER_TEXT);
+ return 0;
+ } else if (for_each_remote_ref(first_valid_ref, NULL)) {
+ return 1;
+ } else if (!opts->force && remote_get(NULL)) {
+ die(_("No local or remote refs exist despite at least one remote\n"
+ "present, stopping; use 'add -f' to overide or fetch a remote first"));
+ } else if (!opts->quiet) {
+ fprintf_ln(stderr, WORKTREE_ADD_DWIM_ORPHAN_INFER_TEXT);
+ }
+ return 0;
+}
+
+/**
+ * Determines whether `--orphan` should be inferred in the evaluation of
+ * `worktree add path/` or `worktree add -b branch path/` and emits an error
+ * if the supplied arguments would produce an illegal combination when the
+ * `--orphan` flag is included.
+ *
+ * `opts` and `opt_track` contain the other options & flags supplied to the
+ * command.
+ *
+ * remote determines whether to check `can_use_remote_refs()` or not. This
+ * is primarily to differentiate between the basic `add` DWIM and `add -b`.
+ *
+ * Returns 1 when inferring `--orphan`, 0 otherwise, and emits an error when
+ * `--orphan` is inferred but doing so produces an illegal combination of
+ * options and flags. Additionally produces an error when remote refs are
+ * checked and the repo is in a state that looks like the user added a remote
+ * but forgot to fetch (and did not override the warning with -f).
+ */
+static int dwim_orphan(const struct add_opts *opts, int opt_track, int remote)
+{
+ if (can_use_local_refs(opts)) {
+ return 0;
+ } else if (remote && can_use_remote_refs(opts)) {
+ return 0;
+ } else if (!opts->quiet) {
+ fprintf_ln(stderr, WORKTREE_ADD_DWIM_ORPHAN_INFER_TEXT);
+ }
+
+ if (opt_track) {
+ die(_("'%s' and '%s' cannot be used together"), "--orphan",
+ "--track");
+ } else if (!opts->checkout) {
+ die(_("'%s' and '%s' cannot be used together"), "--orphan",
+ "--no-checkout");
+ }
+ return 1;
+}
+
static const char *dwim_branch(const char *path, const char **new_branch)
{
int n;
@@ -723,12 +828,19 @@ static int add(int ac, const char **av, const char *prefix)
int n;
const char *s = worktree_basename(path, &n);
new_branch = xstrndup(s, n);
- } else if (new_branch || opts.detach || opts.orphan) {
+ } else if (opts.orphan || opts.detach) {
// No-op
+ } else if (ac < 2 && new_branch) {
+ // DWIM: Infer --orphan when repo has no refs.
+ opts.orphan = dwim_orphan(&opts, !!opt_track, 0);
} else if (ac < 2) {
+ // DWIM: Guess branch name from path.
const char *s = dwim_branch(path, &new_branch);
if (s)
branch = s;
+
+ // DWIM: Infer --orphan when repo has no refs.
+ opts.orphan = (!s) && dwim_orphan(&opts, !!opt_track, 1);
} else if (ac == 2) {
struct object_id oid;
struct commit *commit;
diff --git a/t/t2400-worktree-add.sh b/t/t2400-worktree-add.sh
index 46eef26179..c7ca8df586 100755
--- a/t/t2400-worktree-add.sh
+++ b/t/t2400-worktree-add.sh
@@ -705,6 +705,332 @@ test_expect_success 'git worktree --no-guess-remote option overrides config' '
)
'
+test_dwim_orphan () {
+ local info_text="No possible source branch, inferring '--orphan'" &&
+ local fetch_error_text="fatal: No local or remote refs exist despite at least one remote" &&
+ local orphan_hint="hint: If you meant to create a worktree containing a new orphan branch" &&
+ local invalid_ref_regex="^fatal: invalid reference:\s\+.*" &&
+ local bad_combo_regex="^fatal: '[a-z-]\+' and '[a-z-]\+' cannot be used together" &&
+
+ local git_ns="repo" &&
+ local dashc_args="-C $git_ns" &&
+ local use_cd=0 &&
+
+ local bad_head=0 &&
+ local empty_repo=1 &&
+ local local_ref=0 &&
+ local use_quiet=0 &&
+ local remote=0 &&
+ local remote_ref=0 &&
+ local use_new_branch=0 &&
+
+ local outcome="$1" &&
+ local outcome_text &&
+ local success &&
+ shift &&
+ local args="" &&
+ local context="" &&
+ case "$outcome" in
+ "infer")
+ success=1 &&
+ outcome_text='"add" DWIM infer --orphan'
+ ;;
+ "no_infer")
+ success=1 &&
+ outcome_text='"add" DWIM doesnt infer --orphan'
+ ;;
+ "fetch_error")
+ success=0 &&
+ outcome_text='"add" error need fetch'
+ ;;
+ "fatal_orphan_bad_combo")
+ success=0 &&
+ outcome_text='"add" error inferred "--orphan" gives illegal opts combo'
+ ;;
+ *)
+ echo "test_dwim_orphan(): invalid outcome: '$outcome'" >&2 &&
+ return 1
+ ;;
+ esac &&
+ while [ $# -gt 0 ]
+ do
+ case "$1" in
+ # How and from where to create the worktree
+ "-C_repo")
+ use_cd=0 &&
+ git_ns="repo" &&
+ dashc_args="-C $git_ns" &&
+ context="$context, 'git -C repo'"
+ ;;
+ "-C_wt")
+ use_cd=0 &&
+ git_ns="wt" &&
+ dashc_args="-C $git_ns" &&
+ context="$context, 'git -C wt'"
+ ;;
+ "cd_repo")
+ use_cd=1 &&
+ git_ns="repo" &&
+ dashc_args="" &&
+ context="$context, 'cd repo && git'"
+ ;;
+ "cd_wt")
+ use_cd=1 &&
+ git_ns="wt" &&
+ dashc_args="" &&
+ context="$context, 'cd wt && git'"
+ ;;
+
+ # Bypass the "pull first" warning
+ "force")
+ args="$args --force" &&
+ context="$context, --force"
+ ;;
+
+ # Try to use remote refs when DWIM
+ "guess_remote")
+ args="$args --guess-remote" &&
+ context="$context, --guess-remote"
+ ;;
+ "no_guess_remote")
+ args="$args --no-guess-remote" &&
+ context="$context, --no-guess-remote"
+ ;;
+
+ # Whether there is at least one local branch present
+ "local_ref")
+ empty_repo=0 &&
+ local_ref=1 &&
+ context="$context, >=1 local branches"
+ ;;
+ "no_local_ref")
+ empty_repo=0 &&
+ context="$context, 0 local branches"
+ ;;
+
+ # Whether the HEAD points at a valid ref (skip this opt when no refs)
+ "good_head")
+ # requires: local_ref
+ context="$context, valid HEAD"
+ ;;
+ "bad_head")
+ bad_head=1 &&
+ context="$context, invalid (or orphan) HEAD"
+ ;;
+
+ # Whether the code path is tested with the base add command or -b
+ "no_-b")
+ use_new_branch=0 &&
+ context="$context, no --branch"
+ ;;
+ "-b")
+ use_new_branch=1 &&
+ context="$context, --branch"
+ ;;
+
+ # Whether to check that all output is suppressed (except errors)
+ # or that the output is as expected
+ "quiet")
+ use_quiet=1 &&
+ args="$args --quiet" &&
+ context="$context, --quiet"
+ ;;
+ "no_quiet")
+ use_quiet=0 &&
+ context="$context, no --quiet (expect output)"
+ ;;
+
+ # Whether there is at least one remote attached to the repo
+ "remote")
+ empty_repo=0 &&
+ remote=1 &&
+ context="$context, >=1 remotes"
+ ;;
+ "no_remote")
+ empty_repo=0 &&
+ remote=0 &&
+ context="$context, 0 remotes"
+ ;;
+
+ # Whether there is at least one valid remote ref
+ "remote_ref")
+ # requires: remote
+ empty_repo=0 &&
+ remote_ref=1 &&
+ context="$context, >=1 fetched remote branches"
+ ;;
+ "no_remote_ref")
+ empty_repo=0 &&
+ remote_ref=0 &&
+ context="$context, 0 fetched remote branches"
+ ;;
+
+ # Options or flags that become illegal when --orphan is inferred
+ "no_checkout")
+ args="$args --no-checkout" &&
+ context="$context, --no-checkout"
+ ;;
+ "track")
+ args="$args --track" &&
+ context="$context, --track"
+ ;;
+
+ # All other options are illegal
+ *)
+ echo "test_dwim_orphan(): invalid arg: '$1'" >&2 &&
+ return 1
+ ;;
+ esac &&
+ shift
+ done &&
+ context="${context#', '}" &&
+ if [ $use_new_branch -eq 1 ]
+ then
+ args="$args -b foo"
+ else
+ context="DWIM (no --branch), $context"
+ fi &&
+ if [ $empty_repo -eq 1 ]
+ then
+ context="empty repo, $context"
+ fi &&
+ args="$args ../foo" &&
+ context="${context%', '}" &&
+ test_expect_success "$outcome_text w/ $context" '
+ test_when_finished "rm -rf repo" &&
+ git init repo &&
+ if [ $local_ref -eq 1 ] && [ "$git_ns" = "repo" ]
+ then
+ (cd repo && test_commit commit) &&
+ if [ $bad_head -eq 1 ]
+ then
+ git -C repo symbolic-ref HEAD refs/heads/badbranch
+ fi
+ elif [ $local_ref -eq 1 ] && [ "$git_ns" = "wt" ]
+ then
+ test_when_finished "git -C repo worktree remove -f ../wt" &&
+ git -C repo worktree add --orphan -b main ../wt &&
+ (cd wt && test_commit commit) &&
+ if [ $bad_head -eq 1 ]
+ then
+ git -C wt symbolic-ref HEAD refs/heads/badbranch
+ fi
+ elif [ $local_ref -eq 0 ] && [ "$git_ns" = "wt" ]
+ then
+ test_when_finished "git -C repo worktree remove -f ../wt" &&
+ git -C repo worktree add --orphan -b orphanbranch ../wt
+ fi &&
+
+ if [ $remote -eq 1 ]
+ then
+ test_when_finished "rm -rf upstream" &&
+ git init upstream &&
+ (cd upstream && test_commit commit) &&
+ git -C upstream switch -c foo &&
+ git -C repo remote add upstream ../upstream
+ fi &&
+
+ if [ $remote_ref -eq 1 ]
+ then
+ git -C repo fetch
+ fi &&
+ if [ $success -eq 1 ]
+ then
+ test_when_finished git -C repo worktree remove ../foo
+ fi &&
+ (
+ if [ $use_cd -eq 1 ]
+ then
+ cd $git_ns
+ fi &&
+ if [ "$outcome" = "infer" ]
+ then
+ git $dashc_args worktree add $args 2>actual &&
+ if [ $use_quiet -eq 1 ]
+ then
+ test_must_be_empty actual
+ else
+ grep "$info_text" actual
+ fi
+ elif [ "$outcome" = "no_infer" ]
+ then
+ git $dashc_args worktree add $args 2>actual &&
+ if [ $use_quiet -eq 1 ]
+ then
+ test_must_be_empty actual
+ else
+ ! grep "$info_text" actual
+ fi
+ elif [ "$outcome" = "fetch_error" ]
+ then
+ test_must_fail git $dashc_args worktree add $args 2>actual &&
+ grep "$fetch_error_text" actual
+ elif [ "$outcome" = "fatal_orphan_bad_combo" ]
+ then
+ test_must_fail git $dashc_args worktree add $args 2>actual &&
+ if [ $use_quiet -eq 1 ]
+ then
+ ! grep "$info_text" actual
+ else
+ grep "$info_text" actual
+ fi &&
+ grep "$bad_combo_regex" actual
+ elif [ "$outcome" = "warn_bad_head" ]
+ then
+ test_must_fail git $dashc_args worktree add $args 2>actual &&
+ if [ $use_quiet -eq 1 ]
+ then
+ grep "$invalid_ref_regex" actual &&
+ ! grep "$orphan_hint" actual
+ else
+ headpath=$(git $dashc_args rev-parse --sq --path-format=absolute --git-path HEAD) &&
+ headcontents=$(cat "$headpath") &&
+ grep "HEAD points to an invalid (or orphaned) reference" actual &&
+ grep "HEAD path:\s*.$headpath." actual &&
+ grep "HEAD contents:\s*.$headcontents." actual &&
+ grep "$orphan_hint" actual &&
+ ! grep "$info_text" actual
+ fi &&
+ grep "$invalid_ref_regex" actual
+ else
+ # Unreachable
+ false
+ fi
+ ) &&
+ if [ $success -ne 1 ]
+ then
+ test_path_is_missing foo
+ fi
+ '
+}
+
+for quiet_mode in "no_quiet" "quiet"
+do
+ for changedir_type in "cd_repo" "cd_wt" "-C_repo" "-C_wt"
+ do
+ dwim_test_args="$quiet_mode $changedir_type"
+ test_dwim_orphan 'infer' $dwim_test_args no_-b
+ test_dwim_orphan 'no_infer' $dwim_test_args no_-b local_ref good_head
+ test_dwim_orphan 'infer' $dwim_test_args no_-b no_local_ref no_remote no_remote_ref no_guess_remote
+ test_dwim_orphan 'infer' $dwim_test_args no_-b no_local_ref remote no_remote_ref no_guess_remote
+ test_dwim_orphan 'fetch_error' $dwim_test_args no_-b no_local_ref remote no_remote_ref guess_remote
+ test_dwim_orphan 'infer' $dwim_test_args no_-b no_local_ref remote no_remote_ref guess_remote force
+ test_dwim_orphan 'no_infer' $dwim_test_args no_-b no_local_ref remote remote_ref guess_remote
+
+ test_dwim_orphan 'infer' $dwim_test_args -b
+ test_dwim_orphan 'no_infer' $dwim_test_args -b local_ref good_head
+ test_dwim_orphan 'infer' $dwim_test_args -b no_local_ref no_remote no_remote_ref no_guess_remote
+ test_dwim_orphan 'infer' $dwim_test_args -b no_local_ref remote no_remote_ref no_guess_remote
+ test_dwim_orphan 'infer' $dwim_test_args -b no_local_ref remote no_remote_ref guess_remote
+ test_dwim_orphan 'infer' $dwim_test_args -b no_local_ref remote remote_ref guess_remote
+ done
+
+ test_dwim_orphan 'fatal_orphan_bad_combo' $quiet_mode no_-b no_checkout
+ test_dwim_orphan 'fatal_orphan_bad_combo' $quiet_mode no_-b track
+ test_dwim_orphan 'fatal_orphan_bad_combo' $quiet_mode -b no_checkout
+ test_dwim_orphan 'fatal_orphan_bad_combo' $quiet_mode -b track
+done
+
post_checkout_hook () {
test_when_finished "rm -rf .git/hooks" &&
mkdir .git/hooks &&
--
2.39.3
next prev parent reply other threads:[~2023-05-17 21:49 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-17 9:33 [PATCH v9 0/8] worktree: Support `--orphan` when creating new worktrees Jacob Abel
2023-04-17 9:33 ` [PATCH v9 1/8] worktree add: include -B in usage docs Jacob Abel
2023-04-17 9:33 ` [PATCH v9 2/8] t2400: print captured git output when finished Jacob Abel
2023-04-17 21:09 ` Junio C Hamano
2023-04-18 3:53 ` Jacob Abel
2023-04-18 16:34 ` Junio C Hamano
2023-04-19 13:23 ` Jacob Abel
2023-04-19 13:36 ` Jacob Abel
2023-04-19 15:41 ` Junio C Hamano
2023-04-19 16:50 ` Jacob Abel
2023-04-17 9:33 ` [PATCH v9 3/8] t2400: refactor "worktree add" opt exclusion tests Jacob Abel
2023-04-17 21:30 ` Junio C Hamano
2023-04-20 2:46 ` Jacob Abel
2023-04-17 9:34 ` [PATCH v9 4/8] t2400: add tests to verify --quiet Jacob Abel
2023-04-17 21:33 ` Junio C Hamano
2023-04-20 2:48 ` Jacob Abel
2023-04-17 9:34 ` [PATCH v9 5/8] worktree add: add --orphan flag Jacob Abel
2023-04-17 9:34 ` [PATCH v9 6/8] worktree add: introduce "try --orphan" hint Jacob Abel
2023-04-17 9:34 ` [PATCH v9 7/8] worktree add: extend DWIM to infer --orphan Jacob Abel
2023-04-17 9:34 ` [PATCH v9 8/8] worktree add: emit warn when there is a bad HEAD Jacob Abel
2023-04-20 3:05 ` [PATCH v9 0/8] worktree: Support `--orphan` when creating new worktrees Jacob Abel
2023-05-01 21:51 ` Junio C Hamano
2023-05-02 5:48 ` Jacob Abel
2023-05-17 21:47 ` [RESEND PATCH v10 " Jacob Abel
2023-05-17 21:48 ` [RESEND PATCH v10 1/8] worktree add: include -B in usage docs Jacob Abel
2023-05-17 21:48 ` [RESEND PATCH v10 2/8] t2400: cleanup created worktree in test Jacob Abel
2023-05-17 21:48 ` [RESEND PATCH v10 3/8] t2400: refactor "worktree add" opt exclusion tests Jacob Abel
2023-05-17 21:48 ` [RESEND PATCH v10 4/8] t2400: add tests to verify --quiet Jacob Abel
2023-05-17 21:48 ` [RESEND PATCH v10 5/8] worktree add: add --orphan flag Jacob Abel
2023-05-17 21:48 ` [RESEND PATCH v10 6/8] worktree add: introduce "try --orphan" hint Jacob Abel
2023-05-17 21:48 ` Jacob Abel [this message]
2023-08-09 6:47 ` RESEND [PATCH v10 7/8] worktree add: extend DWIM to infer --orphan Teng Long
2023-08-11 17:43 ` Jacob Abel
2023-05-17 21:49 ` [RESEND PATCH v10 8/8] worktree add: emit warn when there is a bad HEAD Jacob Abel
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