[PATCH v4 3/5] submodule: move status parsing into function

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A future patch requires the ability to parse the output of git
status --porcelain=2. Move parsing code from is_submodule_modified to
parse_status_porcelain.

Signed-off-by: Calvin Wan <calvinwan@xxxxxxxxxx>
---
 submodule.c | 74 ++++++++++++++++++++++++++++++-----------------------
 1 file changed, 42 insertions(+), 32 deletions(-)

diff --git a/submodule.c b/submodule.c
index 31ee53bd57..fd3385620c 100644
--- a/submodule.c
+++ b/submodule.c
@@ -1864,6 +1864,45 @@ int fetch_submodules(struct repository *r,
 	return spf.result;
 }
 
+static int parse_status_porcelain(char *str, size_t len,
+				  unsigned *dirty_submodule,
+				  int ignore_untracked)
+{
+	/* regular untracked files */
+	if (str[0] == '?')
+		*dirty_submodule |= DIRTY_SUBMODULE_UNTRACKED;
+
+	if (str[0] == 'u' ||
+	    str[0] == '1' ||
+	    str[0] == '2') {
+		/* T = line type, XY = status, SSSS = submodule state */
+		if (len < strlen("T XY SSSS"))
+			BUG("invalid status --porcelain=2 line %s",
+			    str);
+
+		if (str[5] == 'S' && str[8] == 'U')
+			/* nested untracked file */
+			*dirty_submodule |= DIRTY_SUBMODULE_UNTRACKED;
+
+		if (str[0] == 'u' ||
+		    str[0] == '2' ||
+		    memcmp(str + 5, "S..U", 4))
+			/* other change */
+			*dirty_submodule |= DIRTY_SUBMODULE_MODIFIED;
+	}
+
+	if ((*dirty_submodule & DIRTY_SUBMODULE_MODIFIED) &&
+	    ((*dirty_submodule & DIRTY_SUBMODULE_UNTRACKED) ||
+	     ignore_untracked)) {
+		/*
+		* We're not interested in any further information from
+		* the child any more, neither output nor its exit code.
+		*/
+		return 1;
+	}
+	return 0;
+}
+
 unsigned is_submodule_modified(const char *path, int ignore_untracked)
 {
 	struct child_process cp = CHILD_PROCESS_INIT;
@@ -1903,39 +1942,10 @@ unsigned is_submodule_modified(const char *path, int ignore_untracked)
 		char *str = buf.buf;
 		const size_t len = buf.len;
 
-		/* regular untracked files */
-		if (str[0] == '?')
-			dirty_submodule |= DIRTY_SUBMODULE_UNTRACKED;
-
-		if (str[0] == 'u' ||
-		    str[0] == '1' ||
-		    str[0] == '2') {
-			/* T = line type, XY = status, SSSS = submodule state */
-			if (len < strlen("T XY SSSS"))
-				BUG("invalid status --porcelain=2 line %s",
-				    str);
-
-			if (str[5] == 'S' && str[8] == 'U')
-				/* nested untracked file */
-				dirty_submodule |= DIRTY_SUBMODULE_UNTRACKED;
-
-			if (str[0] == 'u' ||
-			    str[0] == '2' ||
-			    memcmp(str + 5, "S..U", 4))
-				/* other change */
-				dirty_submodule |= DIRTY_SUBMODULE_MODIFIED;
-		}
-
-		if ((dirty_submodule & DIRTY_SUBMODULE_MODIFIED) &&
-		    ((dirty_submodule & DIRTY_SUBMODULE_UNTRACKED) ||
-		     ignore_untracked)) {
-			/*
-			 * We're not interested in any further information from
-			 * the child any more, neither output nor its exit code.
-			 */
-			ignore_cp_exit_code = 1;
+		ignore_cp_exit_code = parse_status_porcelain(str, len, &dirty_submodule,
+							     ignore_untracked);
+		if (ignore_cp_exit_code)
 			break;
-		}
 	}
 	fclose(fp);
 
-- 
2.38.1.431.g37b22c650d-goog




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