1 files changed, 50 insertions, 3 deletions

diff --git a/examples/log.c b/examples/log.c
index f92b66996..83e5cbcc0 100644
--- a/examples/log.c
+++ b/examples/log.c
@@ -32,24 +32,71 @@ static void usage(const char *message, const char *arg)
 
 int main(int argc, char *argv[])
 {
-	int i;
+	int i, j, last_nonoption, force_files = -1;
 	char *a;
 	const char *dir = ".";
 	git_repository *repo;
+	git_revwalk *walker;
+	git_revspec revs;
 
 	git_threads_init();
 
-	for (i = 1; i < argc; ++i) {
+	for (i = 1, last_nonoption = 1; i < argc; ++i) {
 		a = argv[i];
 
-		if (a[0] != '-') {
+		if (a[0] != '-' || force_files > 0) {
+			/* condense args not prefixed with '-' to start of argv */
+			if (last_nonoption != i)
+				argv[last_nonoption] = a;
+			last_nonoption++;
 		}
+		else if (!strcmp(a, "--"))
+			force_files = last_nonoption; /* copy all args as filenames */
 		else if (!check_str_param(a, "--git-dir=", &dir))
 			usage("Unknown argument", a);
 	}
 
 	check(git_repository_open_ext(&repo, dir, 0, NULL),
 		"Could not open repository");
+	check(git_revwalk_new(&walker, repo),
+		"Could not create revision walker");
+
+	if (force_files < 0)
+		force_files = last_nonoption;
+
+	for (i = 1; i < force_files; ) {
+		printf("option '%s'\n", argv[i]);
+
+		if (!git_revparse(&revs, repo, argv[i])) {
+			char str[GIT_OID_HEXSZ+1];
+
+			if (revs.from) {
+				git_oid_tostr(str, sizeof(str), git_object_id(revs.from));
+				printf("revwalk from %s\n", str);
+			}
+			if (revs.to) {
+				git_oid_tostr(str, sizeof(str), git_object_id(revs.to));
+				printf("revwalk to %s\n", str);
+			}
+
+			/* push / hide / merge-base in revwalker */
+
+			++i;
+		} else {
+			/* shift array down */
+			for (a = argv[i], j = i + 1; j < force_files; ++j)
+				argv[j - 1] = argv[j];
+			argv[--force_files] = a;
+		}
+	}
+
+	if (i == 1) {
+		/* no revs pushed so push HEAD */
+		printf("revwalk HEAD\n");
+	}
+
+	for (i = force_files; i < last_nonoption; ++i)
+		printf("file %s\n", argv[i]);
 
 	git_repository_free(repo);
 	git_threads_shutdown();