From: Johannes Schindelin <johannes.schindelin@xxxxxx>
To give ample warning for users wishing to override Git's the fall-back
for an unconfigured `init.defaultBranch` (in case we decide to change it
in a future Git version), let's introduce some advice that is shown upon
`git init` when that value is not set.
Note: two test cases in Git's test suite want to verify that the
`stderr` output of `git init` is empty. It is now necessary to suppress
the advice using the newly-added `advice.defaultBranchName` setting.
While not strictly necessary, we also set this to `false` in
`test_create_repo()`.
Signed-off-by: Johannes Schindelin <johannes.schindelin@xxxxxx>
---
advice.c | 1 +
advice.h | 1 +
refs.c | 23 ++++++++++++++++++++++-
t/t0001-init.sh | 9 ++++++++-
t/t1510-repo-setup.sh | 2 +-
t/test-lib-functions.sh | 3 ++-
6 files changed, 35 insertions(+), 4 deletions(-)
diff --git a/advice.c b/advice.c
index 164742305f..8a14640193 100644
--- a/advice.c
+++ b/advice.c
@@ -108,6 +108,7 @@ static struct {
[ADVICE_AM_WORK_DIR] = { "amWorkDir", 1 },
[ADVICE_CHECKOUT_AMBIGUOUS_REMOTE_BRANCH_NAME] = { "checkoutAmbiguousRemoteBranchName", 1 },
[ADVICE_COMMIT_BEFORE_MERGE] = { "commitBeforeMerge", 1 },
+ [ADVICE_DEFAULT_BRANCH_NAME] = { "defaultBranchName", 1 },
[ADVICE_DETACHED_HEAD] = { "detachedHead", 1 },
[ADVICE_FETCH_SHOW_FORCED_UPDATES] = { "fetchShowForcedUpdates", 1 },
[ADVICE_GRAFT_FILE_DEPRECATED] = { "graftFileDeprecated", 1 },
diff --git a/advice.h b/advice.h
index bc2432980a..1ae99a1b31 100644
--- a/advice.h
+++ b/advice.h
@@ -46,6 +46,7 @@ extern int advice_add_empty_pathspec;
ADVICE_AM_WORK_DIR,
ADVICE_CHECKOUT_AMBIGUOUS_REMOTE_BRANCH_NAME,
ADVICE_COMMIT_BEFORE_MERGE,
+ ADVICE_DEFAULT_BRANCH_NAME,
ADVICE_DETACHED_HEAD,
ADVICE_FETCH_SHOW_FORCED_UPDATES,
ADVICE_GRAFT_FILE_DEPRECATED,
diff --git a/refs.c b/refs.c
index 8df03122d6..c56bc1bcfb 100644
--- a/refs.c
+++ b/refs.c
@@ -18,6 +18,7 @@
#include "strvec.h"
#include "repository.h"
#include "sigchain.h"
+#include "advice.h"
/*
* List of all available backends
@@ -562,6 +563,23 @@ void expand_ref_prefix(struct strvec *prefixes, const char *prefix)
strvec_pushf(prefixes, *p, len, prefix);
}
+static const char default_branch_name_advice[] = N_(
+"Using '%s' as the name for the initial branch. This default branch name\n"
+"is subject to change. To suppress this warning, run:\n"
+"\n"
+"\tgit config --global advice.defaultBranchName false\n"
+"\n"
+"Alternatively, you can configure the initial branch name to use in all\n"
+"of your new repositories, which will also suppress this warning:\n"
+"\n"
+"\tgit config --global init.defaultBranch <name>\n"
+"\n"
+"Common names are 'main', 'trunk' and 'development'. The initial branch\n"
+"that was created can be renamed via this command:\n"
+"\n"
+"\tgit branch -m <name>\n"
+);
+
char *repo_default_branch_name(struct repository *r, int quiet)
{
const char *config_key = "init.defaultbranch";
@@ -574,8 +592,11 @@ char *repo_default_branch_name(struct repository *r, int quiet)
else if (repo_config_get_string(r, config_key, &ret) < 0)
die(_("could not retrieve `%s`"), config_display_key);
- if (!ret)
+ if (!ret) {
ret = xstrdup("master");
+ if (!quiet && advice_enabled(ADVICE_DEFAULT_BRANCH_NAME))
+ advise(_(default_branch_name_advice), ret);
+ }
full_ref = xstrfmt("refs/heads/%s", ret);
if (check_refname_format(full_ref, 0))
diff --git a/t/t0001-init.sh b/t/t0001-init.sh
index bb23e56a16..84047ac64e 100755
--- a/t/t0001-init.sh
+++ b/t/t0001-init.sh
@@ -163,7 +163,7 @@ test_expect_success 'reinit' '
(
mkdir again &&
cd again &&
- git init >out1 2>err1 &&
+ git -c advice.defaultBranchName=false init >out1 2>err1 &&
git init >out2 2>err2
) &&
test_i18ngrep "Initialized empty" again/out1 &&
@@ -558,6 +558,13 @@ test_expect_success 'overridden default initial branch name (config)' '
grep nmb actual
'
+test_expect_success 'advice on unconfigured init.defaultBranch' '
+ GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME= git -c color.advice=always \
+ init unconfigured-default-branch-name 2>err &&
+ test_decode_color <err >decoded &&
+ test_i18ngrep "<YELLOW>hint: " decoded
+'
+
test_expect_success 'overridden default main branch name (env)' '
test_config_global init.defaultBranch nmb &&
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=env git init main-branch-env &&
diff --git a/t/t1510-repo-setup.sh b/t/t1510-repo-setup.sh
index 9974457f56..5305566167 100755
--- a/t/t1510-repo-setup.sh
+++ b/t/t1510-repo-setup.sh
@@ -79,7 +79,7 @@ setup_repo () {
name=$1 worktreecfg=$2 gitfile=$3 barecfg=$4 &&
sane_unset GIT_DIR GIT_WORK_TREE &&
- git init "$name" &&
+ git -c advice.defaultBranchName=false init "$name" &&
maybe_config "$name/.git/config" core.worktree "$worktreecfg" &&
maybe_config "$name/.git/config" core.bare "$barecfg" &&
mkdir -p "$name/sub/sub" &&
diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh
index 59bbf75e83..781d47a4bb 100644
--- a/t/test-lib-functions.sh
+++ b/t/test-lib-functions.sh
@@ -1202,7 +1202,8 @@ test_create_repo () {
mkdir -p "$repo"
(
cd "$repo" || error "Cannot setup test environment"
- "${GIT_TEST_INSTALLED:-$GIT_EXEC_PATH}/git$X" init \
+ "${GIT_TEST_INSTALLED:-$GIT_EXEC_PATH}/git$X" \
+ -c advice.defaultBranchName=false init \
"--template=$GIT_BUILD_DIR/templates/blt/" >&3 2>&4 ||
error "cannot run git init -- have you built things yet?"
mv .git/hooks .git/hooks-disabled
--
gitgitgadget
