mirror of
https://github.com/git/git
synced 2024-08-27 19:49:21 +00:00
![Johannes Schindelin](/assets/img/avatar_default.png)
Reported by Coverity. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
246 lines
5.6 KiB
C
246 lines
5.6 KiB
C
#include "cache.h"
|
|
#include "config.h"
|
|
#include "repository.h"
|
|
#include "fsmonitor-settings.h"
|
|
|
|
/*
|
|
* We keep this structure defintion private and have getters
|
|
* for all fields so that we can lazy load it as needed.
|
|
*/
|
|
struct fsmonitor_settings {
|
|
enum fsmonitor_mode mode;
|
|
enum fsmonitor_reason reason;
|
|
char *hook_path;
|
|
};
|
|
|
|
static enum fsmonitor_reason check_for_incompatible(struct repository *r)
|
|
{
|
|
if (!r->worktree) {
|
|
/*
|
|
* Bare repositories don't have a working directory and
|
|
* therefore have nothing to watch.
|
|
*/
|
|
return FSMONITOR_REASON_BARE;
|
|
}
|
|
|
|
#ifdef HAVE_FSMONITOR_OS_SETTINGS
|
|
{
|
|
enum fsmonitor_reason reason;
|
|
|
|
reason = fsm_os__incompatible(r);
|
|
if (reason != FSMONITOR_REASON_OK)
|
|
return reason;
|
|
}
|
|
#endif
|
|
|
|
return FSMONITOR_REASON_OK;
|
|
}
|
|
|
|
static struct fsmonitor_settings *alloc_settings(void)
|
|
{
|
|
struct fsmonitor_settings *s;
|
|
|
|
CALLOC_ARRAY(s, 1);
|
|
s->mode = FSMONITOR_MODE_DISABLED;
|
|
s->reason = FSMONITOR_REASON_UNTESTED;
|
|
|
|
return s;
|
|
}
|
|
|
|
static void lookup_fsmonitor_settings(struct repository *r)
|
|
{
|
|
const char *const_str;
|
|
int bool_value;
|
|
|
|
if (r->settings.fsmonitor)
|
|
return;
|
|
|
|
/*
|
|
* Overload the existing "core.fsmonitor" config setting (which
|
|
* has historically been either unset or a hook pathname) to
|
|
* now allow a boolean value to enable the builtin FSMonitor
|
|
* or to turn everything off. (This does imply that you can't
|
|
* use a hook script named "true" or "false", but that's OK.)
|
|
*/
|
|
switch (repo_config_get_maybe_bool(r, "core.fsmonitor", &bool_value)) {
|
|
|
|
case 0: /* config value was set to <bool> */
|
|
if (bool_value)
|
|
fsm_settings__set_ipc(r);
|
|
else
|
|
fsm_settings__set_disabled(r);
|
|
return;
|
|
|
|
case 1: /* config value was unset */
|
|
const_str = getenv("GIT_TEST_FSMONITOR");
|
|
break;
|
|
|
|
case -1: /* config value set to an arbitrary string */
|
|
if (repo_config_get_pathname(r, "core.fsmonitor", &const_str))
|
|
return; /* should not happen */
|
|
break;
|
|
|
|
default: /* should not happen */
|
|
return;
|
|
}
|
|
|
|
if (const_str && *const_str)
|
|
fsm_settings__set_hook(r, const_str);
|
|
else
|
|
fsm_settings__set_disabled(r);
|
|
}
|
|
|
|
enum fsmonitor_mode fsm_settings__get_mode(struct repository *r)
|
|
{
|
|
if (!r)
|
|
r = the_repository;
|
|
if (!r->settings.fsmonitor)
|
|
lookup_fsmonitor_settings(r);
|
|
|
|
return r->settings.fsmonitor->mode;
|
|
}
|
|
|
|
const char *fsm_settings__get_hook_path(struct repository *r)
|
|
{
|
|
if (!r)
|
|
r = the_repository;
|
|
if (!r->settings.fsmonitor)
|
|
lookup_fsmonitor_settings(r);
|
|
|
|
return r->settings.fsmonitor->hook_path;
|
|
}
|
|
|
|
void fsm_settings__set_ipc(struct repository *r)
|
|
{
|
|
enum fsmonitor_reason reason = check_for_incompatible(r);
|
|
|
|
if (reason != FSMONITOR_REASON_OK) {
|
|
fsm_settings__set_incompatible(r, reason);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Caller requested IPC explicitly, so avoid (possibly
|
|
* recursive) config lookup.
|
|
*/
|
|
if (!r)
|
|
r = the_repository;
|
|
if (!r->settings.fsmonitor)
|
|
r->settings.fsmonitor = alloc_settings();
|
|
|
|
r->settings.fsmonitor->mode = FSMONITOR_MODE_IPC;
|
|
r->settings.fsmonitor->reason = reason;
|
|
FREE_AND_NULL(r->settings.fsmonitor->hook_path);
|
|
}
|
|
|
|
void fsm_settings__set_hook(struct repository *r, const char *path)
|
|
{
|
|
enum fsmonitor_reason reason = check_for_incompatible(r);
|
|
|
|
if (reason != FSMONITOR_REASON_OK) {
|
|
fsm_settings__set_incompatible(r, reason);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Caller requested hook explicitly, so avoid (possibly
|
|
* recursive) config lookup.
|
|
*/
|
|
if (!r)
|
|
r = the_repository;
|
|
if (!r->settings.fsmonitor)
|
|
r->settings.fsmonitor = alloc_settings();
|
|
|
|
r->settings.fsmonitor->mode = FSMONITOR_MODE_HOOK;
|
|
r->settings.fsmonitor->reason = reason;
|
|
FREE_AND_NULL(r->settings.fsmonitor->hook_path);
|
|
r->settings.fsmonitor->hook_path = strdup(path);
|
|
}
|
|
|
|
void fsm_settings__set_disabled(struct repository *r)
|
|
{
|
|
if (!r)
|
|
r = the_repository;
|
|
if (!r->settings.fsmonitor)
|
|
r->settings.fsmonitor = alloc_settings();
|
|
|
|
r->settings.fsmonitor->mode = FSMONITOR_MODE_DISABLED;
|
|
r->settings.fsmonitor->reason = FSMONITOR_REASON_OK;
|
|
FREE_AND_NULL(r->settings.fsmonitor->hook_path);
|
|
}
|
|
|
|
void fsm_settings__set_incompatible(struct repository *r,
|
|
enum fsmonitor_reason reason)
|
|
{
|
|
if (!r)
|
|
r = the_repository;
|
|
if (!r->settings.fsmonitor)
|
|
r->settings.fsmonitor = alloc_settings();
|
|
|
|
r->settings.fsmonitor->mode = FSMONITOR_MODE_INCOMPATIBLE;
|
|
r->settings.fsmonitor->reason = reason;
|
|
FREE_AND_NULL(r->settings.fsmonitor->hook_path);
|
|
}
|
|
|
|
enum fsmonitor_reason fsm_settings__get_reason(struct repository *r)
|
|
{
|
|
if (!r)
|
|
r = the_repository;
|
|
if (!r->settings.fsmonitor)
|
|
lookup_fsmonitor_settings(r);
|
|
|
|
return r->settings.fsmonitor->reason;
|
|
}
|
|
|
|
char *fsm_settings__get_incompatible_msg(const struct repository *r,
|
|
enum fsmonitor_reason reason)
|
|
{
|
|
struct strbuf msg = STRBUF_INIT;
|
|
|
|
switch (reason) {
|
|
case FSMONITOR_REASON_UNTESTED:
|
|
case FSMONITOR_REASON_OK:
|
|
goto done;
|
|
|
|
case FSMONITOR_REASON_BARE: {
|
|
char *cwd = xgetcwd();
|
|
|
|
strbuf_addf(&msg,
|
|
_("bare repository '%s' is incompatible with fsmonitor"),
|
|
cwd);
|
|
free(cwd);
|
|
goto done;
|
|
}
|
|
|
|
case FSMONITOR_REASON_ERROR:
|
|
strbuf_addf(&msg,
|
|
_("repository '%s' is incompatible with fsmonitor due to errors"),
|
|
r->worktree);
|
|
goto done;
|
|
|
|
case FSMONITOR_REASON_REMOTE:
|
|
strbuf_addf(&msg,
|
|
_("remote repository '%s' is incompatible with fsmonitor"),
|
|
r->worktree);
|
|
goto done;
|
|
|
|
case FSMONITOR_REASON_VFS4GIT:
|
|
strbuf_addf(&msg,
|
|
_("virtual repository '%s' is incompatible with fsmonitor"),
|
|
r->worktree);
|
|
goto done;
|
|
|
|
case FSMONITOR_REASON_NOSOCKETS:
|
|
strbuf_addf(&msg,
|
|
_("repository '%s' is incompatible with fsmonitor due to lack of Unix sockets"),
|
|
r->worktree);
|
|
goto done;
|
|
}
|
|
|
|
BUG("Unhandled case in fsm_settings__get_incompatible_msg: '%d'",
|
|
reason);
|
|
|
|
done:
|
|
return strbuf_detach(&msg, NULL);
|
|
}
|