[PATCH v1 01/27] revision: factor out parsing of diff-merge related options

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Move all the parsing code related to diffing merges into new
parse_diff_merge_opts() function.

Signed-off-by: Sergey Organov <sorganov@xxxxxxxxx>
---
 revision.c | 66 ++++++++++++++++++++++++++++++++----------------------
 1 file changed, 39 insertions(+), 27 deletions(-)

diff --git a/revision.c b/revision.c
index aa6221204081..a09f4872acd7 100644
--- a/revision.c
+++ b/revision.c
@@ -2153,6 +2153,44 @@ static void add_message_grep(struct rev_info *revs, const char *pattern)
 	add_grep(revs, pattern, GREP_PATTERN_BODY);
 }
 
+static int parse_diff_merge_opts(struct rev_info *revs, const char **argv) {
+	int argcount;
+	const char *optarg;
+	const char *arg = argv[0];
+
+	if (!strcmp(arg, "-m")) {
+		/*
+		 * To "diff-index", "-m" means "match missing", and to the "log"
+		 * family of commands, it means "show full diff for merges". Set
+		 * both fields appropriately.
+		 */
+		revs->ignore_merges = 0;
+		revs->match_missing = 1;
+	} else if (!strcmp(arg, "-c")) {
+		revs->diff = 1;
+		revs->dense_combined_merges = 0;
+		revs->combine_merges = 1;
+	} else if (!strcmp(arg, "--cc")) {
+		revs->diff = 1;
+		revs->dense_combined_merges = 1;
+		revs->combine_merges = 1;
+	} else if (!strcmp(arg, "--no-diff-merges")) {
+		revs->ignore_merges = 1;
+	} else if (!strcmp(arg, "--combined-all-paths")) {
+		revs->diff = 1;
+		revs->combined_all_paths = 1;
+	} else if ((argcount = parse_long_opt("diff-merges", argv, &optarg))) {
+		if (!strcmp(optarg, "off")) {
+			revs->ignore_merges = 1;
+		} else {
+			die(_("unknown value for --diff-merges: %s"), optarg);
+		}
+	} else
+		return 0;
+
+	return 1;
+}
+
 static int handle_revision_opt(struct rev_info *revs, int argc, const char **argv,
 			       int *unkc, const char **unkv,
 			       const struct setup_revision_opt* opt)
@@ -2349,34 +2387,8 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
 		revs->diff = 1;
 		revs->diffopt.flags.recursive = 1;
 		revs->diffopt.flags.tree_in_recursive = 1;
-	} else if (!strcmp(arg, "-m")) {
-		/*
-		 * To "diff-index", "-m" means "match missing", and to the "log"
-		 * family of commands, it means "show full diff for merges". Set
-		 * both fields appropriately.
-		 */
-		revs->ignore_merges = 0;
-		revs->match_missing = 1;
-	} else if ((argcount = parse_long_opt("diff-merges", argv, &optarg))) {
-		if (!strcmp(optarg, "off")) {
-			revs->ignore_merges = 1;
-		} else {
-			die(_("unknown value for --diff-merges: %s"), optarg);
-		}
+	} else if ((argcount = parse_diff_merge_opts(revs, argv))) {
 		return argcount;
-	} else if (!strcmp(arg, "--no-diff-merges")) {
-		revs->ignore_merges = 1;
-	} else if (!strcmp(arg, "-c")) {
-		revs->diff = 1;
-		revs->dense_combined_merges = 0;
-		revs->combine_merges = 1;
-	} else if (!strcmp(arg, "--combined-all-paths")) {
-		revs->diff = 1;
-		revs->combined_all_paths = 1;
-	} else if (!strcmp(arg, "--cc")) {
-		revs->diff = 1;
-		revs->dense_combined_merges = 1;
-		revs->combine_merges = 1;
 	} else if (!strcmp(arg, "-v")) {
 		revs->verbose_header = 1;
 	} else if (!strcmp(arg, "--pretty")) {
-- 
2.25.1




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