[PATCH v3 3/7] dir: move starts_with_dot(_dot)_slash to dir.h

[Jacob Keller <jacob.e.keller@intel.com>]

From: Jacob Keller <jacob.keller@gmail.com>

Both submodule--helper.c and submodule-config.c have an implementation
of starts_with_dot_slash and starts_with_dot_dot_slash. The dir.h header
has starts_with_dot(_dot)_slash_native, which sets PATH_MATCH_NATIVE.

Move the helpers to dir.h as static inlines. I thought about renaming
them to postfix with _platform but that felt too long and ugly. On the
other hand it might be slightly confusing with _native.

This simplifies a submodule refactor which wants to use the helpers
earlier in the submodule--helper.c file.

Signed-off-by: Jacob Keller <jacob.keller@gmail.com>
---
 dir.h                       | 23 +++++++++++++++++++++++
 builtin/submodule--helper.c | 12 ------------
 submodule-config.c          | 12 ------------
 3 files changed, 23 insertions(+), 24 deletions(-)

diff --git a/dir.h b/dir.h
index d7e71aa8daa7d833e4c05e6875b997bc321c6070..fc9be7b427a134e46bcd66c8df42375db47727fc 100644
--- a/dir.h
+++ b/dir.h
@@ -676,4 +676,27 @@ static inline int starts_with_dot_dot_slash_native(const char *const path)
 	return path_match_flags(path, what | PATH_MATCH_NATIVE);
 }
 
+/**
+ * starts_with_dot_slash: convenience wrapper for
+ * patch_match_flags() with PATH_MATCH_STARTS_WITH_DOT_SLASH and
+ * PATH_MATCH_XPLATFORM.
+ */
+static inline int starts_with_dot_slash(const char *const path)
+{
+	const enum path_match_flags what = PATH_MATCH_STARTS_WITH_DOT_SLASH;
+
+	return path_match_flags(path, what | PATH_MATCH_XPLATFORM);
+}
+
+/**
+ * starts_with_dot_dot_slash: convenience wrapper for
+ * patch_match_flags() with PATH_MATCH_STARTS_WITH_DOT_DOT_SLASH and
+ * PATH_MATCH_XPLATFORM.
+ */
+static inline int starts_with_dot_dot_slash(const char *const path)
+{
+	const enum path_match_flags what = PATH_MATCH_STARTS_WITH_DOT_DOT_SLASH;
+
+	return path_match_flags(path, what | PATH_MATCH_XPLATFORM);
+}
 #endif
diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index 53da2116ddf576bc565b29f043e8b703b8b1563b..9e8cdfe1b2a8c2985d9c1b8ad6f1b0d1f9401714 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -438,18 +438,6 @@ static int module_foreach(int argc, const char **argv, const char *prefix,
 	return ret;
 }
 
-static int starts_with_dot_slash(const char *const path)
-{
-	return path_match_flags(path, PATH_MATCH_STARTS_WITH_DOT_SLASH |
-				PATH_MATCH_XPLATFORM);
-}
-
-static int starts_with_dot_dot_slash(const char *const path)
-{
-	return path_match_flags(path, PATH_MATCH_STARTS_WITH_DOT_DOT_SLASH |
-				PATH_MATCH_XPLATFORM);
-}
-
 struct init_cb {
 	const char *prefix;
 	const char *super_prefix;
diff --git a/submodule-config.c b/submodule-config.c
index 8630e27947d3943e1980eb7a53bd41a546842503..d64438b2a18ed2123cc5e18f739539209032d3e9 100644
--- a/submodule-config.c
+++ b/submodule-config.c
@@ -235,18 +235,6 @@ int check_submodule_name(const char *name)
 	return 0;
 }
 
-static int starts_with_dot_slash(const char *const path)
-{
-	return path_match_flags(path, PATH_MATCH_STARTS_WITH_DOT_SLASH |
-				PATH_MATCH_XPLATFORM);
-}
-
-static int starts_with_dot_dot_slash(const char *const path)
-{
-	return path_match_flags(path, PATH_MATCH_STARTS_WITH_DOT_DOT_SLASH |
-				PATH_MATCH_XPLATFORM);
-}
-
 static int submodule_url_is_relative(const char *url)
 {
 	return starts_with_dot_slash(url) || starts_with_dot_dot_slash(url);

-- 
2.48.1.397.gec9d649cc640