Introduce a new config option, indexhelper.autorun, to automatically
run git index-helper before starting up a builtin git command. This
enables users to keep index-helper running without manual
intervention.
Signed-off-by: David Turner <dtur...@twopensource.com>
---
Documentation/config.txt | 4 ++++
read-cache.c | 37 +++++++++++++++++++++++++++++++++++--
t/t7900-index-helper.sh | 20 ++++++++++++++++++++
3 files changed, 59 insertions(+), 2 deletions(-)
diff --git a/Documentation/config.txt b/Documentation/config.txt
index 15001ce..385ea66 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -1856,6 +1856,10 @@ index.version::
Specify the version with which new index files should be
initialized. This does not affect existing repositories.
+indexhelper.autorun::
+ Automatically run git index-helper when any builtin git
+ command is run inside a repository.
+
init.templateDir::
Specify the directory from which templates will be copied.
(See the "TEMPLATE DIRECTORY" section of linkgit:git-init[1].)
diff --git a/read-cache.c b/read-cache.c
index b00919a..d91742c 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -22,6 +22,7 @@
#include "pkt-line.h"
#include "sigchain.h"
#include "ewah/ewok.h"
+#include "run-command.h"
static struct cache_entry *refresh_cache_entry(struct cache_entry *ce,
unsigned int options);
@@ -1724,6 +1725,33 @@ static void post_read_index_from(struct index_state
*istate)
tweak_untracked_cache(istate);
}
+static int want_auto_index_helper(void)
+{
+ int want = -1;
+ const char *value = NULL;
+ const char *key = "indexhelper.autorun";
+
+ if (git_config_key_is_valid(key) &&
+ !git_config_get_value(key, &value)) {
+ int b = git_config_maybe_bool(key, value);
+ want = b >= 0 ? b : 0;
+ }
+ return want;
+}
+
+static void autorun_index_helper(void)
+{
+ const char *argv[] = {"git-index-helper", "--detach", "--autorun",
NULL};
+ if (want_auto_index_helper() <= 0)
+ return;
+
+ trace_argv_printf(argv, "trace: auto index-helper:");
+
+ if (run_command_v_opt(argv,
+ RUN_SILENT_EXEC_FAILURE | RUN_CLEAN_ON_EXIT))
+ warning(_("You specified indexhelper.autorun, but running
git-index-helper failed."));
+}
+
/* in ms */
#define WATCHMAN_TIMEOUT 1000
@@ -1797,6 +1825,7 @@ static int poke_daemon(struct index_state *istate,
if (fd < 0) {
warning("Failed to connect to index-helper socket");
unlink(git_path("index-helper.sock"));
+ autorun_index_helper();
return -1;
}
sigchain_push(SIGPIPE, SIG_IGN);
@@ -1836,9 +1865,13 @@ static int try_shm(struct index_state *istate)
int fd = -1;
if (!is_main_index(istate) ||
- old_size <= 20 ||
- stat(git_path("index-helper.sock"), &st))
+ old_size <= 20)
return -1;
+
+ if (stat(git_path("index-helper.sock"), &st)) {
+ autorun_index_helper();
+ return -1;
+ }
if (poke_daemon(istate, &st, 0))
return -1;
sha1 = (unsigned char *)istate->mmap + old_size - 20;
diff --git a/t/t7900-index-helper.sh b/t/t7900-index-helper.sh
index aa6e5fc..3cfdf63 100755
--- a/t/t7900-index-helper.sh
+++ b/t/t7900-index-helper.sh
@@ -16,6 +16,9 @@ test -n "$NO_MMAP" && {
}
test_expect_success 'index-helper smoke test' '
+ # We need an existing commit so that the index exists (otherwise,
+ # the index-helper will not be autostarted)
+ test_commit x &&
git index-helper --exit-after 1 &&
test_path_is_missing .git/index-helper.sock
'
@@ -46,4 +49,21 @@ test_expect_success 'index-helper is quiet with --autorun' '
git index-helper --autorun
'
+test_expect_success 'index-helper autorun works' '
+ test_when_finished "git index-helper --kill" &&
+ rm -f .git/index-helper.sock &&
+ git status &&
+ test_path_is_missing .git/index-helper.sock &&
+ test_config indexhelper.autorun true &&
+ git status &&
+ test -S .git/index-helper.sock &&
+ git status 2>err &&
+ test -S .git/index-helper.sock &&
+ test_must_be_empty err &&
+ git index-helper --kill &&
+ test_config indexhelper.autorun false &&
+ git status &&
+ test_path_is_missing .git/index-helper.sock
+'
+
test_done
--
2.4.2.767.g62658d5-twtrsrc
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