refactor(preg): add preg_is_match for existence-only call sites

The capture groups were discarded at 162 of the preg_match call sites,
which only tested the Option. They now call preg_is_match, which lets the
regex engine skip capture tracking.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

1 files changed, 4 insertions, 6 deletions

diff --git a/crates/shirabe/src/repository/vcs/fossil_driver.rs b/crates/shirabe/src/repository/vcs/fossil_driver.rs
index d5a9334f..9a678284 100644
--- a/crates/shirabe/src/repository/vcs/fossil_driver.rs
+++ b/crates/shirabe/src/repository/vcs/fossil_driver.rs
@@ -13,7 +13,7 @@ use chrono::{DateTime, FixedOffset, Utc};
 use indexmap::IndexMap;
 use shirabe_php_shim::Catch as _;
 use shirabe_php_shim::{
-    PhpMixed, RuntimeException, dirname, is_dir, is_file, is_writable, php_regex, preg_match,
+    PhpMixed, RuntimeException, dirname, is_dir, is_file, is_writable, php_regex, preg_is_match,
     preg_replace,
 };
 
@@ -301,16 +301,14 @@ impl FossilDriver {
         url: &str,
         deep: bool,
     ) -> anyhow::Result<bool> {
-        if preg_match(
+        if preg_is_match(
             php_regex!(r"#(^(?:https?|ssh)://(?:[^@]@)?(?:chiselapp\.com|fossil\.))#i"),
             url,
-        )
-        .is_some()
-        {
+        ) {
             return Ok(true);
         }
 
-        if preg_match(php_regex!(r"!/fossil/|\.fossil!"), url).is_some() {
+        if preg_is_match(php_regex!(r"!/fossil/|\.fossil!"), url) {
             return Ok(true);
         }