remote: announce removal of "branches/" and "remotes/"

Back when Git was in its infancy, remotes were configured via separate
files in "branches/" (back in 2005). This mechanism was replaced later
that year with the "remotes/" directory. Both mechanisms have eventually
been replaced by config-based remotes, and it is very unlikely that
anybody still uses these directories to configure their remotes.

Both of these directories have been marked as deprecated, one in 2005
and the other one in 2011. Follow through with the deprecation and
finally announce the removal of these features in Git 3.0.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
[jc: with a small tweak to the help message]
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Patrick Steinhardt 2025-01-22 12:31:33 +01:00 committed by Junio C Hamano
parent 68f51871df
commit 8ccc75c245
9 changed files with 96 additions and 40 deletions

View File

@ -154,6 +154,31 @@ Cf. <xmqq1rjuz6n3.fsf_-_@gitster.c.googlers.com>,
<CAKvOHKAFXQwt4D8yUCCkf_TQL79mYaJ=KAKhtpDNTvHJFuX1NA@mail.gmail.com>,
<20230323204047.GA9290@coredump.intra.peff.net>,
* Support for storing shorthands for remote URLs in "$GIT_COMMON_DIR/branches/"
and "$GIT_COMMON_DIR/remotes/" has been long superseded by storing remotes in
the repository configuration.
+
The mechanism has originally been introduced in f170e4b39d ([PATCH] fetch/pull:
short-hand notation for remote repositories., 2005-07-16) and was superseded by
6687f8fea2 ([PATCH] Use .git/remote/origin, not .git/branches/origin.,
2005-08-20), where we switched from ".git/branches/" to ".git/remotes/". That
commit already mentions an upcoming deprecation of the ".git/branches/"
directory, and starting with a1d4aa7424 (Add repository-layout document.,
2005-09-01) we have also marked this layout as deprecated. Eventually we also
started to migrate away from ".git/remotes/" in favor of config-based remotes,
and we have marked the directory as legacy in 3d3d282146 (Documentation:
Grammar correction, wording fixes and cleanup, 2011-08-23)
+
As our documentation mentions, these directories are not to be found in modern
repositories at all and most users aren't even aware of these mechanisms. They
have been deprecated for almost 20 years and 14 years respectively, and we are
not aware of any active users that have complained about this deprecation.
Furthermore, the ".git/branches/" directory is nowadays misleadingly named and
may cause confusion as "branches" are almost exclusively used in the context of
references.
+
These features will be removed.
== Superseded features that will not be deprecated
Some features have gained newer replacements that aim to improve the design in

View File

@ -153,7 +153,7 @@ config.worktree::
linkgit:git-worktree[1]).
branches::
A slightly deprecated way to store shorthands to be used
A deprecated way to store shorthands to be used
to specify a URL to 'git fetch', 'git pull' and 'git push'.
A file can be stored as `branches/<name>` and then
'name' can be given to these commands in place of
@ -162,7 +162,8 @@ branches::
and not likely to be found in modern repositories. This
directory is ignored if $GIT_COMMON_DIR is set and
"$GIT_COMMON_DIR/branches" will be used instead.
+
Git will stop reading remotes from this directory in Git 3.0.
hooks::
Hooks are customization scripts used by various Git
@ -238,6 +239,8 @@ remotes::
and not likely to be found in modern repositories. This
directory is ignored if $GIT_COMMON_DIR is set and
"$GIT_COMMON_DIR/remotes" will be used instead.
+
Git will stop reading remotes from this directory in Git 3.0.
logs::
Records of changes made to refs are stored in this directory.

View File

@ -640,10 +640,12 @@ static int migrate_file(struct remote *remote)
strbuf_addf(&buf, "remote.%s.fetch", remote->name);
for (i = 0; i < remote->fetch.nr; i++)
git_config_set_multivar(buf.buf, remote->fetch.items[i].raw, "^$", 0);
#ifndef WITH_BREAKING_CHANGES
if (remote->origin == REMOTE_REMOTES)
unlink_or_warn(git_path("remotes/%s", remote->name));
else if (remote->origin == REMOTE_BRANCHES)
unlink_or_warn(git_path("branches/%s", remote->name));
#endif /* WITH_BREAKING_CHANGES */
strbuf_release(&buf);
return 0;

View File

@ -293,6 +293,7 @@ static void add_instead_of(struct rewrite *rewrite, const char *instead_of)
rewrite->instead_of_nr++;
}
#ifndef WITH_BREAKING_CHANGES
static const char *skip_spaces(const char *s)
{
while (isspace(*s))
@ -300,6 +301,21 @@ static const char *skip_spaces(const char *s)
return s;
}
static void warn_about_deprecated_remote_type(const char *type,
const struct remote *remote)
{
warning(_("reading remote from \"%s/%s\", which is nominated for removal.\n"
"\n"
"If you still use the \"remotes/\" directory it is recommended to\n"
"migrate to config-based remotes:\n"
"\n"
"\tgit remote rename %s %s\n"
"\n"
"If you cannot, please let us know why you still need to use it by\n"
"sending an e-mail to <git@vger.kernel.org>."),
type, remote->name, remote->name, remote->name);
}
static void read_remotes_file(struct remote_state *remote_state,
struct remote *remote)
{
@ -308,6 +324,9 @@ static void read_remotes_file(struct remote_state *remote_state,
if (!f)
return;
warn_about_deprecated_remote_type("remotes", remote);
remote->configured_in_repo = 1;
remote->origin = REMOTE_REMOTES;
while (strbuf_getline(&buf, f) != EOF) {
@ -337,6 +356,8 @@ static void read_branches_file(struct remote_state *remote_state,
if (!f)
return;
warn_about_deprecated_remote_type("branches", remote);
strbuf_getline_lf(&buf, f);
fclose(f);
strbuf_trim(&buf);
@ -374,6 +395,7 @@ static void read_branches_file(struct remote_state *remote_state,
strbuf_release(&buf);
free(to_free);
}
#endif /* WITH_BREAKING_CHANGES */
static int handle_config(const char *key, const char *value,
const struct config_context *ctx, void *cb)
@ -572,6 +594,7 @@ static void read_config(struct repository *repo, int early)
alias_all_urls(repo->remote_state);
}
#ifndef WITH_BREAKING_CHANGES
static int valid_remote_nick(const char *name)
{
if (!name[0] || is_dot_or_dotdot(name))
@ -583,6 +606,7 @@ static int valid_remote_nick(const char *name)
return 0;
return 1;
}
#endif /* WITH_BREAKING_CHANGES */
static const char *remotes_remote_for_branch(struct remote_state *remote_state,
struct branch *branch,
@ -725,12 +749,14 @@ remotes_remote_get_1(struct remote_state *remote_state, const char *name,
&name_given);
ret = make_remote(remote_state, name, 0);
#ifndef WITH_BREAKING_CHANGES
if (valid_remote_nick(name) && have_git_dir()) {
if (!valid_remote(ret))
read_remotes_file(remote_state, ret);
if (!valid_remote(ret))
read_branches_file(remote_state, ret);
}
#endif /* WITH_BREAKING_CHANGES */
if (name_given && !valid_remote(ret))
add_url_alias(remote_state, ret, name);
if (!valid_remote(ret))

View File

@ -21,8 +21,10 @@ struct transport_ls_refs_options;
enum {
REMOTE_UNCONFIGURED = 0,
REMOTE_CONFIG,
#ifndef WITH_BREAKING_CHANGES
REMOTE_REMOTES,
REMOTE_BRANCHES
#endif /* WITH_BREAKING_CHANGES */
};
struct rewrite {

View File

@ -1007,7 +1007,7 @@ Pull: refs/heads/main:refs/heads/origin
Pull: refs/heads/next:refs/heads/origin2
EOF
test_expect_success 'migrate a remote from named file in $GIT_DIR/remotes' '
test_expect_success WITHOUT_BREAKING_CHANGES 'migrate a remote from named file in $GIT_DIR/remotes' '
git clone one five &&
origin_url=$(pwd)/one &&
(
@ -1033,7 +1033,7 @@ test_expect_success 'migrate a remote from named file in $GIT_DIR/remotes' '
)
'
test_expect_success 'migrate a remote from named file in $GIT_DIR/branches' '
test_expect_success WITHOUT_BREAKING_CHANGES 'migrate a remote from named file in $GIT_DIR/branches' '
git clone --template= one six &&
origin_url=$(pwd)/one &&
(
@ -1049,7 +1049,7 @@ test_expect_success 'migrate a remote from named file in $GIT_DIR/branches' '
)
'
test_expect_success 'migrate a remote from named file in $GIT_DIR/branches (2)' '
test_expect_success WITHOUT_BREAKING_CHANGES 'migrate a remote from named file in $GIT_DIR/branches (2)' '
git clone --template= one seven &&
(
cd seven &&

View File

@ -34,14 +34,11 @@ test_expect_success "clone and setup child repos" '
git clone . three &&
(
cd three &&
git config branch.main.remote two &&
git config branch.main.merge refs/heads/one &&
mkdir -p .git/remotes &&
cat >.git/remotes/two <<-\EOF
URL: ../two/.git/
Pull: refs/heads/main:refs/heads/two
Pull: refs/heads/one:refs/heads/one
EOF
git config set remote.two.url ../two/.git/ &&
git config set remote.two.fetch refs/heads/main:refs/heads/two &&
git config set --append remote.two.fetch refs/heads/one:refs/heads/one &&
git config set branch.main.remote two &&
git config set branch.main.merge refs/heads/one
) &&
git clone . bundle &&
git clone . seven

View File

@ -104,28 +104,31 @@ test_expect_success setup '
git config remote.config-glob.fetch refs/heads/*:refs/remotes/rem/* &&
remotes="$remotes config-glob" &&
mkdir -p .git/remotes &&
cat >.git/remotes/remote-explicit <<-\EOF &&
URL: ../.git/
Pull: refs/heads/main:remotes/rem/main
Pull: refs/heads/one:remotes/rem/one
Pull: two:remotes/rem/two
Pull: refs/heads/three:remotes/rem/three
EOF
remotes="$remotes remote-explicit" &&
if test_have_prereq WITHOUT_BREAKING_CHANGES
then
mkdir -p .git/remotes &&
cat >.git/remotes/remote-explicit <<-\EOF &&
URL: ../.git/
Pull: refs/heads/main:remotes/rem/main
Pull: refs/heads/one:remotes/rem/one
Pull: two:remotes/rem/two
Pull: refs/heads/three:remotes/rem/three
EOF
remotes="$remotes remote-explicit" &&
cat >.git/remotes/remote-glob <<-\EOF &&
URL: ../.git/
Pull: refs/heads/*:refs/remotes/rem/*
EOF
remotes="$remotes remote-glob" &&
cat >.git/remotes/remote-glob <<-\EOF &&
URL: ../.git/
Pull: refs/heads/*:refs/remotes/rem/*
EOF
remotes="$remotes remote-glob" &&
mkdir -p .git/branches &&
echo "../.git" > .git/branches/branches-default &&
remotes="$remotes branches-default" &&
mkdir -p .git/branches &&
echo "../.git" > .git/branches/branches-default &&
remotes="$remotes branches-default" &&
echo "../.git#one" > .git/branches/branches-one &&
remotes="$remotes branches-one" &&
echo "../.git#one" > .git/branches/branches-one &&
remotes="$remotes branches-one"
fi &&
for remote in $remotes ; do
git config branch.br-$remote.remote $remote &&

View File

@ -975,7 +975,7 @@ test_expect_success 'allow push to HEAD of non-bare repository (config)' '
! grep "warning: updating the current branch" stderr
'
test_expect_success 'fetch with branches' '
test_expect_success WITHOUT_BREAKING_CHANGES 'fetch with branches' '
mk_empty testrepo &&
git branch second $the_first_commit &&
git checkout second &&
@ -991,7 +991,7 @@ test_expect_success 'fetch with branches' '
git checkout main
'
test_expect_success 'fetch with branches containing #' '
test_expect_success WITHOUT_BREAKING_CHANGES 'fetch with branches containing #' '
mk_empty testrepo &&
mkdir testrepo/.git/branches &&
echo "..#second" > testrepo/.git/branches/branch2 &&
@ -1005,7 +1005,7 @@ test_expect_success 'fetch with branches containing #' '
git checkout main
'
test_expect_success 'push with branches' '
test_expect_success WITHOUT_BREAKING_CHANGES 'push with branches' '
mk_empty testrepo &&
git checkout second &&
@ -1022,7 +1022,7 @@ test_expect_success 'push with branches' '
)
'
test_expect_success 'push with branches containing #' '
test_expect_success WITHOUT_BREAKING_CHANGES 'push with branches containing #' '
mk_empty testrepo &&
test_when_finished "rm -rf .git/branches" &&
@ -1211,18 +1211,16 @@ test_expect_success 'push --porcelain --dry-run rejected' '
'
test_expect_success 'push --prune' '
mk_test testrepo heads/main heads/second heads/foo heads/bar &&
mk_test testrepo heads/main heads/foo heads/bar &&
git push --prune testrepo : &&
check_push_result testrepo $the_commit heads/main &&
check_push_result testrepo $the_first_commit heads/second &&
! check_push_result testrepo $the_first_commit heads/foo heads/bar
'
test_expect_success 'push --prune refspec' '
mk_test testrepo tmp/main tmp/second tmp/foo tmp/bar &&
mk_test testrepo tmp/main tmp/foo tmp/bar &&
git push --prune testrepo "refs/heads/*:refs/tmp/*" &&
check_push_result testrepo $the_commit tmp/main &&
check_push_result testrepo $the_first_commit tmp/second &&
! check_push_result testrepo $the_first_commit tmp/foo tmp/bar
'