diff options
| -rw-r--r-- | Documentation/config.txt | 5 | ||||
| -rw-r--r-- | advice.c | 2 | ||||
| -rw-r--r-- | advice.h | 1 | ||||
| -rw-r--r-- | builtin-checkout.c | 18 | ||||
| -rwxr-xr-x | t/t7201-co.sh | 32 |
5 files changed, 46 insertions, 12 deletions
diff --git a/Documentation/config.txt b/Documentation/config.txt index 17901e2..fee44d8 100644 --- a/Documentation/config.txt +++ b/Documentation/config.txt @@ -138,6 +138,11 @@ advice.*:: Advice on how to set your identity configuration when your information is guessed from the system username and domain name. Default: true. + + detachedHead:: + 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. Default: true. -- core.fileMode:: @@ -5,6 +5,7 @@ int advice_status_hints = 1; int advice_commit_before_merge = 1; int advice_resolve_conflict = 1; int advice_implicit_identity = 1; +int advice_detached_head = 1; static struct { const char *name; @@ -15,6 +16,7 @@ static struct { { "commitbeforemerge", &advice_commit_before_merge }, { "resolveconflict", &advice_resolve_conflict }, { "implicitidentity", &advice_implicit_identity }, + { "detachedhead", &advice_detached_head }, }; int git_default_advice_config(const char *var, const char *value) @@ -8,6 +8,7 @@ extern int advice_status_hints; extern int advice_commit_before_merge; extern int advice_resolve_conflict; extern int advice_implicit_identity; +extern int advice_detached_head; int git_default_advice_config(const char *var, const char *value); diff --git a/builtin-checkout.c b/builtin-checkout.c index 5277817..c5ab783 100644 --- a/builtin-checkout.c +++ b/builtin-checkout.c @@ -488,6 +488,20 @@ 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) @@ -522,8 +536,8 @@ static void update_refs_for_switch(struct checkout_opts *opts, update_ref(msg.buf, "HEAD", new->commit->object.sha1, NULL, REF_NODEREF, DIE_ON_ERR); if (!opts->quiet) { - if (old->path) - fprintf(stderr, "Note: moving to '%s' which isn't a local branch\nIf you want to create a new branch from this checkout, you may do so\n(now or later) by using -b with the checkout command again. Example:\n git checkout -b <new_branch_name>\n", new->name); + if (old->path && advice_detached_head) + detach_advice(old->path, new->name); describe_detached_head("HEAD is now at", new->commit); } } diff --git a/t/t7201-co.sh b/t/t7201-co.sh index 6442f71..d20ed61 100755 --- a/t/t7201-co.sh +++ b/t/t7201-co.sh @@ -166,19 +166,31 @@ test_expect_success 'checkout -m with merge conflict' ' ! test -s current ' -test_expect_success 'checkout to detach HEAD' ' +test_expect_success 'checkout to detach HEAD (with advice declined)' ' + git config advice.detachedHead false && git checkout -f renamer && git clean -f && git checkout renamer^ 2>messages && - (cat >messages.expect <<EOF -Note: moving to '\''renamer^'\'' which isn'\''t a local branch -If you want to create a new branch from this checkout, you may do so -(now or later) by using -b with the checkout command again. Example: - git checkout -b <new_branch_name> -HEAD is now at 7329388... Initial A one, A two -EOF -) && - test_cmp messages.expect messages && + grep "HEAD is now at 7329388" messages && + test 1 -eq $(wc -l <messages) && + H=$(git rev-parse --verify HEAD) && + M=$(git show-ref -s --verify refs/heads/master) && + test "z$H" = "z$M" && + if git symbolic-ref HEAD >/dev/null 2>&1 + then + echo "OOPS, HEAD is still symbolic???" + false + else + : happy + fi +' + +test_expect_success 'checkout to detach HEAD' ' + git config advice.detachedHead true && + git checkout -f renamer && git clean -f && + git checkout renamer^ 2>messages && + grep "HEAD is now at 7329388" messages && + test 1 -lt $(wc -l <messages) && H=$(git rev-parse --verify HEAD) && M=$(git show-ref -s --verify refs/heads/master) && test "z$H" = "z$M" && |