X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=rev-parse.c;h=b82f294a78994e512c4f30da5bb4ba3eca3f95b4;hb=a348ab702a84983c258e4961a58b1b9502f428c8;hp=42969a6fc1b7591b13a2fc664421e4f1da465cdb;hpb=d50125085a6c4775a77d45a6d294d723f6de8869;p=git.git

diff --git a/rev-parse.c b/rev-parse.c
index 42969a6f..b82f294a 100644
--- a/rev-parse.c
+++ b/rev-parse.c
@@ -53,6 +53,10 @@ static int is_rev_argument(const char *arg)
 	};
 	const char **p = rev_args;
 
+	/* accept -<digit>, like traditional "head" */
+	if ((*arg == '-') && isdigit(arg[1]))
+		return 1;
+
 	for (;;) {
 		const char *str = *p++;
 		int len;
@@ -103,12 +107,15 @@ static void show_rev(int type, const unsigned char *sha1, const char *name)
 }
 
 /* Output a flag, only if filter allows it. */
-static void show_flag(char *arg)
+static int show_flag(char *arg)
 {
 	if (!(filter & DO_FLAGS))
-		return;
-	if (filter & (is_rev_argument(arg) ? DO_REVS : DO_NOREV))
+		return 0;
+	if (filter & (is_rev_argument(arg) ? DO_REVS : DO_NOREV)) {
 		show(arg);
+		return 1;
+	}
+	return 0;
 }
 
 static void show_default(void)
@@ -143,11 +150,14 @@ static void show_datestring(const char *flag, const char *datestr)
 	show(buffer);
 }
 
-static void show_file(const char *arg)
+static int show_file(const char *arg)
 {
 	show_default();
-	if ((filter & (DO_NONFLAGS|DO_NOREV)) == (DO_NONFLAGS|DO_NOREV))
+	if ((filter & (DO_NONFLAGS|DO_NOREV)) == (DO_NONFLAGS|DO_NOREV)) {
 		show(arg);
+		return 1;
+	}
+	return 0;
 }
 
 int main(int argc, char **argv)
@@ -165,6 +175,21 @@ int main(int argc, char **argv)
 			show_file(arg);
 			continue;
 		}
+		if (!strcmp(arg,"-n")) {
+			if (++i >= argc)
+				die("-n requires an argument");
+			if ((filter & DO_FLAGS) && (filter & DO_REVS)) {
+				show(arg);
+				show(argv[i]);
+			}
+			continue;
+		}
+		if (!strncmp(arg,"-n",2)) {
+			if ((filter & DO_FLAGS) && (filter & DO_REVS))
+				show(arg);
+			continue;
+		}
+
 		if (*arg == '-') {
 			if (!strcmp(arg, "--")) {
 				as_is = 1;
@@ -199,15 +224,17 @@ int main(int argc, char **argv)
 				verify = 1;
 				continue;
 			}
-			if (!strcmp(arg, "--abbrev") ||
-			    !strncmp(arg, "--abbrev=", 9)) {
+			if (!strcmp(arg, "--short") ||
+			    !strncmp(arg, "--short=", 9)) {
 				filter &= ~(DO_FLAGS|DO_NOREV);
 				verify = 1;
 				abbrev = DEFAULT_ABBREV;
 				if (arg[8] == '=')
 					abbrev = strtoul(arg + 9, NULL, 10);
-				if (abbrev < 0 || 40 <= abbrev)
-					abbrev = DEFAULT_ABBREV;
+				if (abbrev < MINIMUM_ABBREV)
+					abbrev = MINIMUM_ABBREV;
+				else if (40 <= abbrev)
+					abbrev = 40;
 				continue;
 			}
 			if (!strcmp(arg, "--sq")) {
@@ -275,9 +302,8 @@ int main(int argc, char **argv)
 				show_datestring("--min-age=", arg+8);
 				continue;
 			}
-			if (verify)
+			if (show_flag(arg) && verify)
 				die("Needed a single revision");
-			show_flag(arg);
 			continue;
 		}
 
@@ -306,12 +332,13 @@ int main(int argc, char **argv)
 			show_rev(REVERSED, sha1, arg+1);
 			continue;
 		}
+		as_is = 1;
+		if (!show_file(arg))
+			continue;
 		if (verify)
 			die("Needed a single revision");
 		if (lstat(arg, &st) < 0)
 			die("'%s': %s", arg, strerror(errno));
-		as_is = 1;
-		show_file(arg);
 	}
 	show_default();
 	if (verify && revs_count != 1)