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-rw-r--r--ui-diff.c62
1 files changed, 43 insertions, 19 deletions
diff --git a/ui-diff.c b/ui-diff.c
index afe1c90..3ed0a46 100644
--- a/ui-diff.c
+++ b/ui-diff.c
@@ -31,39 +31,63 @@ static void print_line(char *line, int len)
 	line[len-1] = c;
 }
 
-static void header(unsigned char *sha1, char *path1,
-		   unsigned char *sha2, char *path2)
+static void header(unsigned char *sha1, char *path1, int mode1,
+		   unsigned char *sha2, char *path2, int mode2)
 {
 	char *abbrev1, *abbrev2;
-	if (is_null_sha1(sha1))
-		path1 = "dev/null";
-	if (is_null_sha1(sha2))
-		path2 = "dev/null";
+	int subproject;
+
+	subproject = (S_ISDIRLNK(mode1) || S_ISDIRLNK(mode2));
 	html("<tr><td>");
 	html("<div class='head'>");
 	html("diff --git a/");
 	html_txt(path1);
 	html(" b/");
 	html_txt(path2);
-	abbrev1 = xstrdup(find_unique_abbrev(sha1, DEFAULT_ABBREV));
-	abbrev2 = xstrdup(find_unique_abbrev(sha2, DEFAULT_ABBREV));
-	htmlf("\nindex %s..%s", abbrev1, abbrev2);
-	free(abbrev1);
-	free(abbrev2);
-	html("\n--- a/");
-	html_txt(path1);
-	html("\n+++ b/");
-	html_txt(path2);
+
+	if (is_null_sha1(sha1))
+		path1 = "dev/null";
+	if (is_null_sha1(sha2))
+		path2 = "dev/null";
+
+	if (mode1 == 0)
+		htmlf("<br/>new file mode %.6o", mode2);
+
+	if (mode2 == 0)
+		htmlf("<br/>deleted file mode %.6o", mode1);
+
+	if (!subproject) {
+		abbrev1 = xstrdup(find_unique_abbrev(sha1, DEFAULT_ABBREV));
+		abbrev2 = xstrdup(find_unique_abbrev(sha2, DEFAULT_ABBREV));
+		htmlf("<br/>index %s..%s", abbrev1, abbrev2);
+		free(abbrev1);
+		free(abbrev2);
+		if (mode1 != 0 && mode2 != 0) {
+			htmlf(" %.6o", mode1);
+			if (mode2 != mode1)
+				htmlf("..%.6o", mode2);
+		}
+		html("<br/>--- a/");
+		html_txt(path1);
+		html("<br/>+++ b/");
+		html_txt(path2);
+	}
 	html("</div>");
 }
 
 static void filepair_cb(struct diff_filepair *pair)
 {
-	header(pair->one->sha1, pair->one->path,
-	       pair->two->sha1, pair->two->path);
+	header(pair->one->sha1, pair->one->path, pair->one->mode,
+	       pair->two->sha1, pair->two->path, pair->two->mode);
+	if (S_ISDIRLNK(pair->one->mode) || S_ISDIRLNK(pair->two->mode)) {
+		if (S_ISDIRLNK(pair->one->mode))
+			print_line(fmt("-Subproject %s", sha1_to_hex(pair->one->sha1)), 52);
+		if (S_ISDIRLNK(pair->two->mode))
+			print_line(fmt("+Subproject %s", sha1_to_hex(pair->two->sha1)), 52);
+		return;
+	}
 	if (cgit_diff_files(pair->one->sha1, pair->two->sha1, print_line))
 		cgit_print_error("Error running diff");
-	html("</tr></td>");
 }
 
 void cgit_print_diff(const char *head, const char *old_hex, const char *new_hex, char *path)
@@ -100,7 +124,7 @@ void cgit_print_diff(const char *head, const char *old_hex, const char *new_hex,
 	switch(type) {
 	case OBJ_BLOB:
 		html("<tr><td>");
-		header(sha1, path, sha2, path);
+		header(sha1, path, 0644, sha2, path, 0644);
 		if (cgit_diff_files(sha1, sha2, print_line))
 			cgit_print_error("Error running diff");
 		html("</tr></td>");