Merge branch 'nd/literal-pathspecs'

Fixes a regression on 'master' since v1.8.4.

* nd/literal-pathspecs:
  pathspec: stop --*-pathspecs impact on internal parse_pathspec() uses

Author: gitster

builtin/blame.c

@@ -409,7 +409,9 @@ static struct origin *find_origin(struct scoreboard *sb,
 	paths[0] = origin->path;
 	paths[1] = NULL;
 
-	parse_pathspec(&diff_opts.pathspec, PATHSPEC_ALL_MAGIC, 0, "", paths);
+	parse_pathspec(&diff_opts.pathspec,
+		       PATHSPEC_ALL_MAGIC & ~PATHSPEC_LITERAL,
+		       PATHSPEC_LITERAL_PATH, "", paths);
 	diff_setup_done(&diff_opts);
 
 	if (is_null_sha1(origin->commit->object.sha1))

pathspec.c

@@ -128,7 +128,11 @@ static unsigned prefix_pathspec(struct pathspec_item *item,
 		die(_("global 'literal' pathspec setting is incompatible "
 		      "with all other global pathspec settings"));
 
-	if (elt[0] != ':' || literal_global) {
+	if (flags & PATHSPEC_LITERAL_PATH)
+		global_magic = 0;
+
+	if (elt[0] != ':' || literal_global ||
+	    (flags & PATHSPEC_LITERAL_PATH)) {
 		; /* nothing to do */
 	} else if (elt[1] == '(') {
 		/* longhand */
@@ -405,6 +409,9 @@ void parse_pathspec(struct pathspec *pathspec,
 		item[i].magic = prefix_pathspec(item + i, &short_magic,
 						argv + i, flags,
 						prefix, prefixlen, entry);
+		if ((flags & PATHSPEC_LITERAL_PATH) &&
+		    !(magic_mask & PATHSPEC_LITERAL))
+			item[i].magic |= PATHSPEC_LITERAL;
 		if (item[i].magic & magic_mask)
 			unsupported_magic(entry,
 					  item[i].magic & magic_mask,

pathspec.h

@@ -58,6 +58,13 @@ struct pathspec {
 #define PATHSPEC_STRIP_SUBMODULE_SLASH_EXPENSIVE (1<<5)
 #define PATHSPEC_PREFIX_ORIGIN (1<<6)
 #define PATHSPEC_KEEP_ORDER (1<<7)
+/*
+ * For the callers that just need pure paths from somewhere else, not
+ * from command line. Global --*-pathspecs options are ignored. No
+ * magic is parsed in each pathspec either. If PATHSPEC_LITERAL is
+ * allowed, then it will automatically set for every pathspec.
+ */
+#define PATHSPEC_LITERAL_PATH (1<<8)
 
 extern void parse_pathspec(struct pathspec *pathspec,
 			   unsigned magic_mask,

revision.c

@@ -1372,8 +1372,8 @@ static void prepare_show_merge(struct rev_info *revs)
 			i++;
 	}
 	free_pathspec(&revs->prune_data);
-	parse_pathspec(&revs->prune_data, PATHSPEC_ALL_MAGIC,
-		       PATHSPEC_PREFER_FULL, "", prune);
+	parse_pathspec(&revs->prune_data, PATHSPEC_ALL_MAGIC & ~PATHSPEC_LITERAL,
+		       PATHSPEC_PREFER_FULL | PATHSPEC_LITERAL_PATH, "", prune);
 	revs->limited = 1;
 }
 

t/t6130-pathspec-noglob.sh

@@ -108,6 +108,13 @@ test_expect_success 'no-glob environment variable works' '
 	test_cmp expect actual
 '
 
+test_expect_success 'blame takes global pathspec flags' '
+	git --literal-pathspecs blame -- foo &&
+	git --icase-pathspecs   blame -- foo &&
+	git --glob-pathspecs    blame -- foo &&
+	git --noglob-pathspecs  blame -- foo
+'
+
 test_expect_success 'setup xxx/bar' '
 	mkdir xxx &&
 	test_commit xxx xxx/bar

tree-diff.c

@@ -254,7 +254,9 @@ static void try_to_follow_renames(struct tree_desc *t1, struct tree_desc *t2, co
 			path[0] = p->one->path;
 			path[1] = NULL;
 			free_pathspec(&opt->pathspec);
-			parse_pathspec(&opt->pathspec, PATHSPEC_ALL_MAGIC, 0, "", path);
+			parse_pathspec(&opt->pathspec,
+				       PATHSPEC_ALL_MAGIC & ~PATHSPEC_LITERAL,
+				       PATHSPEC_LITERAL_PATH, "", path);
 
 			/*
 			 * The caller expects us to return a set of vanilla