When you define $GIT_DIR/info/config.worktree, which contains of
gitignore-style patterns (*), config variables that match these
patterns will be saved in $GIT_DIR/config.worktree instead of
$GIT_DIR/config.
On the surface, they are just like any other variables. You can read
or modify them with `git config` command, or config_* API. Underneath,
they are always stored in $GIT_DIR/config.worktree instead of
$GIT_DIR/config (and never in $HOME/.gitconfig or /etc/gitconfig)
The reason for this split is, as the name implies, for
worktree-specific configuration. When the same repo is attached to
more than one worktree, we can't use $GIT_DIR/config to store worktree
specific stuff because it's shared across worktrees.
(*) Config variable names are separated by dots. However as this is a
quick and dirty patch to experiment with submodules and multiple
worktrees, you must substitute dots with slashes when writing these
patterns, for now. E.g. write "remote/*/foo" instead of "remote.*.foo"
Signed-off-by: Nguyễn Thái Ngọc Duy <pclo...@gmail.com>
---
Something for Max to play with if he's still experimenting with
multiple worktree support for submodules :-) It's far from perfect,
but good enough for this purpose.
Documentation/config.txt | 6 ++++-
builtin/config.c | 8 ++++++
config.c | 67 ++++++++++++++++++++++++++++++++++++++++++++++++
t/t1300-repo-config.sh | 34 ++++++++++++++++++++++++
4 files changed, 114 insertions(+), 1 deletion(-)
diff --git a/Documentation/config.txt b/Documentation/config.txt
index 2700a1b..6d00f49 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -2,11 +2,15 @@ CONFIGURATION FILE
------------------
The Git configuration file contains a number of variables that affect
-the Git commands' behavior. The `.git/config` file in each repository
+the Git commands' behavior. The `.git/config` and `.git/config.worktree`
+files in each repository
is used to store the configuration for that repository, and
`$HOME/.gitconfig` is used to store a per-user configuration as
fallback values for the `.git/config` file. The file `/etc/gitconfig`
can be used to store a system-wide default configuration.
+If `.git/info/core.worktree` exists, it contains gitignore-style
+patterns. Variables that match these patterns can only be contained in
+`.git/config.worktree`.
The configuration variables are used by both the Git plumbing
and the porcelains. The variables are divided into sections, wherein
diff --git a/builtin/config.c b/builtin/config.c
index 8cc2604..4ca8fc2 100644
--- a/builtin/config.c
+++ b/builtin/config.c
@@ -555,6 +555,14 @@ int cmd_config(int argc, const char **argv, const char
*prefix)
usage_with_options(builtin_config_usage,
builtin_config_options);
}
+ /*
+ * For set operations, --local could be either config or
+ * config.worktree. Let config.c determine the path based on
+ * config keys.
+ */
+ if (use_local_config && actions != ACTION_LIST)
+ given_config_source.file = NULL;
+
if (actions == ACTION_LIST) {
check_argc(argc, 0, 0);
if (git_config_with_options(show_all_config, NULL,
diff --git a/config.c b/config.c
index 15a2983..f68eb6a 100644
--- a/config.c
+++ b/config.c
@@ -12,6 +12,7 @@
#include "quote.h"
#include "hashmap.h"
#include "string-list.h"
+#include "dir.h"
struct config_source {
struct config_source *prev;
@@ -37,6 +38,7 @@ struct config_source {
};
static struct config_source *cf;
+static struct exclude_list config_local;
static int zlib_compression_seen;
@@ -84,6 +86,34 @@ static long config_buf_ftell(struct config_source *conf)
return conf->u.buf.pos;
}
+static int is_config_local(const char *key_)
+{
+ static struct strbuf key = STRBUF_INIT;
+ static int loaded;
+ int i, dtype;
+
+ if (!loaded) {
+ add_excludes_from_file_to_list(git_path("info/config.worktree"),
+ "", 0, &config_local, 0);
+ loaded = 1;
+ }
+
+ if (!config_local.nr)
+ return 0;
+
+ strbuf_reset(&key);
+ strbuf_addstr(&key, key_);
+ for (i = 0; i < key.len; i++) {
+ if (key.buf[i] == '.')
+ key.buf[i] = '/';
+ else
+ key.buf[i] = tolower(key.buf[i]);
+ }
+ dtype = DT_REG;
+ return is_excluded_from_list(key.buf, key.len, "", &dtype,
+ &config_local) > 0;
+}
+
#define MAX_INCLUDE_DEPTH 10
static const char include_depth_advice[] =
"exceeded maximum include depth (%d) while including\n"
@@ -1167,6 +1197,15 @@ int git_config_system(void)
return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0);
}
+static int config_local_filter(const char *var, const char *value, void *data)
+{
+ struct config_include_data *inc = data;
+
+ if (!is_config_local(var))
+ return error("%s does not belong to config.worktree", var);
+ return inc->fn(var, value, inc->data);
+}
+
int git_config_early(config_fn_t fn, void *data, const char *repo_config)
{
int ret = 0, found = 0;
@@ -1192,8 +1231,19 @@ int git_config_early(config_fn_t fn, void *data, const
char *repo_config)
}
if (repo_config && !access_or_die(repo_config, R_OK, 0)) {
+ char *wt_config;
ret += git_config_from_file(fn, repo_config, data);
found += 1;
+ wt_config = git_pathdup("config.worktree");
+ if (!access_or_die(wt_config, R_OK, 0)) {
+ struct config_include_data inc = CONFIG_INCLUDE_INIT;
+ inc.fn = fn;
+ inc.data = data;
+ ret += git_config_from_file(config_local_filter,
+ wt_config, &inc);
+ found += 1;
+ }
+ free(wt_config);
}
switch (git_config_from_parameters(fn, data)) {
@@ -1932,6 +1982,23 @@ int git_config_set_multivar_in_file(const char
*config_filename,
store.multi_replace = multi_replace;
+ if (is_config_local(key)) {
+ if (!config_filename)
+ config_filename = filename_buf =
git_pathdup("config.worktree");
+ /* cheap trick, but should work 90% of time */
+ else if (!ends_with(config_filename, ".worktree"))
+ die("%s can only be stored in %s",
+ key, git_path("config.worktree"));
+ else {
+ struct strbuf sb = STRBUF_INIT;
+ strbuf_addstr(&sb, real_path(config_filename));
+ if (strcmp_icase(sb.buf,
+
real_path(git_path("config.worktree"))))
+ die("%s can only be stored in %s",
+ key, git_path("config.worktree"));
+ strbuf_release(&sb);
+ }
+ }
if (!config_filename)
config_filename = filename_buf = git_pathdup("config");
diff --git a/t/t1300-repo-config.sh b/t/t1300-repo-config.sh
index 938fc8b..c01effb 100755
--- a/t/t1300-repo-config.sh
+++ b/t/t1300-repo-config.sh
@@ -1179,4 +1179,38 @@ test_expect_success POSIXPERM,PERL 'preserves existing
permissions' '
"die q(badrename) if ((stat(q(.git/config)))[2] & 07777) != 0600"
'
+test_expect_success 'setting worktree.foo goes to config.worktree' '
+ test_when_finished "rm .git/config.worktree" &&
+ echo "worktree/*" >.git/info/config.worktree &&
+ git config wOrktree.foo bar &&
+ cat >expect <<\EOF &&
+[wOrktree]
+ foo = bar
+EOF
+ test_cmp expect .git/config.worktree &&
+ test "`git config woRktree.foo`" = bar
+'
+
+test_expect_success 'setting --local worktree.foo goes to config.worktree' '
+ test_when_finished "rm .git/config.worktree" &&
+ echo "worktree/*" >.git/info/config.worktree &&
+ git config --local worKtree.fooo barr &&
+ cat >expect <<\EOF &&
+[worKtree]
+ fooo = barr
+EOF
+ test_cmp expect .git/config.worktree &&
+ test "`git config worktreE.fooo`" = barr
+'
+
+test_expect_success 'setting worktree.foo outside config.worktree' '
+ echo "worktree/*" >.git/info/config.worktree &&
+ test_must_fail git config --global Worktree.foo bar 2>err &&
+ grep config.worktree err &&
+ test_must_fail git config --system workTree.foo bar 2>err &&
+ grep config.worktree err &&
+ test_must_fail git config --file foo.worktree worktree.foo bar 2>err &&
+ grep config.worktree err
+'
+
test_done
--
2.3.0.rc1.137.g477eb31
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