[PATCH v3 2/4] pathspec: expose match_pathspec_with_flags

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

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

The do_match_pathspec() function has the DO_MATCH_LEADING_PATHSPEC
option to allow pathspecs to match when matching "src" against a
pathspec like "src/path/...". This support is not exposed by
match_pathspec, and the internal flags to do_match_pathspec are not
exposed outside of dir.c

Make match_pathspec_with_flags public, and expose the
DO_MATCH_LEADING_PATHSPEC and DO_MATCH_DIRECTORY flags. The
DO_MATCH_EXCLUDE flag is kept private in dir.c

This will be used in a an extension to support pathspec matching in git
diff --no-index.

Signed-off-by: Jacob Keller <jacob.keller@gmail.com>
---
 pathspec.h |  8 ++++++++
 dir.c      | 11 +++++------
 2 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/pathspec.h b/pathspec.h
index de537cff3cb6..d22d4e80248d 100644
--- a/pathspec.h
+++ b/pathspec.h
@@ -184,6 +184,14 @@ int match_pathspec(struct index_state *istate,
 		   const char *name, int namelen,
 		   int prefix, char *seen, int is_dir);
 
+#define DO_MATCH_DIRECTORY (1<<1)
+#define DO_MATCH_LEADING_PATHSPEC (1<<2)
+
+int match_pathspec_with_flags(struct index_state *istate,
+			      const struct pathspec *ps,
+			      const char *name, int namelen,
+			      int prefix, char *seen, unsigned flags);
+
 /*
  * Determine whether a pathspec will match only entire index entries (non-sparse
  * files and/or entire sparse directories). If the pathspec has the potential to
diff --git a/dir.c b/dir.c
index a374972b6243..2f2b654b0252 100644
--- a/dir.c
+++ b/dir.c
@@ -329,9 +329,8 @@ static int do_read_blob(const struct object_id *oid, struct oid_stat *oid_stat,
 	return 1;
 }
 
+// DO_MATCH_EXCLUDE is not public
 #define DO_MATCH_EXCLUDE   (1<<0)
-#define DO_MATCH_DIRECTORY (1<<1)
-#define DO_MATCH_LEADING_PATHSPEC (1<<2)
 
 /*
  * Does the given pathspec match the given name?  A match is found if
@@ -551,10 +550,10 @@ static int do_match_pathspec(struct index_state *istate,
 	return retval;
 }
 
-static int match_pathspec_with_flags(struct index_state *istate,
-				     const struct pathspec *ps,
-				     const char *name, int namelen,
-				     int prefix, char *seen, unsigned flags)
+int match_pathspec_with_flags(struct index_state *istate,
+			      const struct pathspec *ps,
+			      const char *name, int namelen,
+			      int prefix, char *seen, unsigned flags)
 {
 	int positive, negative;
 	positive = do_match_pathspec(istate, ps, name, namelen,
-- 
2.48.1.397.gec9d649cc640