Add --verbose to git-archive

And teach backends about it.

Signed-off-by: Junio C Hamano <junkio@cox.net>
(cherry picked from 9e2c44a2893ae90944a0b7c9f40a9d22b759b5c0 commit)
diff --git a/archive.h b/archive.h
index e0782b9..16dcdb8 100644
--- a/archive.h
+++ b/archive.h
@@ -10,6 +10,7 @@
 	const unsigned char *commit_sha1;
 	time_t time;
 	const char **pathspec;
+	unsigned int verbose : 1;
 	void *extra;
 };
 
diff --git a/builtin-archive.c b/builtin-archive.c
index 3a8be57..7544ad3 100644
--- a/builtin-archive.c
+++ b/builtin-archive.c
@@ -12,7 +12,7 @@
 #include "pkt-line.h"
 
 static const char archive_usage[] = \
-"git-archive --format=<fmt> [--prefix=<prefix>/] [<extra>] <tree-ish> [path...]";
+"git-archive --format=<fmt> [--prefix=<prefix>/] [--verbose] [<extra>] <tree-ish> [path...]";
 
 struct archiver archivers[] = {
 	{
@@ -148,6 +148,7 @@
 	int extra_argc = 0;
 	const char *format = NULL; /* might want to default to "tar" */
 	const char *base = "";
+	int verbose = 0;
 	int i;
 
 	for (i = 1; i < argc; i++) {
@@ -158,6 +159,10 @@
 				printf("%s\n", archivers[i].name);
 			exit(0);
 		}
+		if (!strcmp(arg, "--verbose") || !strcmp(arg, "-v")) {
+			verbose = 1;
+			continue;
+		}
 		if (!strncmp(arg, "--format=", 9)) {
 			format = arg + 9;
 			continue;
@@ -192,6 +197,7 @@
 			die("%s", default_parse_extra(ar, extra_argv));
 		ar->args.extra = ar->parse_extra(extra_argc, extra_argv);
 	}
+	ar->args.verbose = verbose;
 	ar->args.base = base;
 
 	return i;
diff --git a/builtin-tar-tree.c b/builtin-tar-tree.c
index e8e492f..f2679a8 100644
--- a/builtin-tar-tree.c
+++ b/builtin-tar-tree.c
@@ -22,6 +22,7 @@
 
 static time_t archive_time;
 static int tar_umask;
+static int verbose;
 
 /* writes out the whole block, but only if it is full */
 static void write_if_needed(void)
@@ -169,6 +170,8 @@
 		mode = 0100666;
 		sprintf(header.name, "%s.paxheader", sha1_to_hex(sha1));
 	} else {
+		if (verbose)
+			fprintf(stderr, "%.*s\n", path->len, path->buf);
 		if (S_ISDIR(mode)) {
 			*header.typeflag = TYPEFLAG_DIR;
 			mode = (mode | 0777) & ~tar_umask;
@@ -385,6 +388,7 @@
 	git_config(git_tar_config);
 
 	archive_time = args->time;
+	verbose = args->verbose;
 
 	if (args->commit_sha1)
 		write_global_extended_header(args->commit_sha1);
diff --git a/builtin-zip-tree.c b/builtin-zip-tree.c
index fdac2bd..52d4b7a 100644
--- a/builtin-zip-tree.c
+++ b/builtin-zip-tree.c
@@ -13,6 +13,7 @@
 static const char zip_tree_usage[] =
 "git-zip-tree [-0|...|-9] <tree-ish> [ <base> ]";
 
+static int verbose;
 static int zip_date;
 static int zip_time;
 
@@ -164,6 +165,8 @@
 	crc = crc32(0, Z_NULL, 0);
 
 	path = construct_path(base, baselen, filename, S_ISDIR(mode), &pathlen);
+	if (verbose)
+		fprintf(stderr, "%s\n", path);
 	if (pathlen > 0xffff) {
 		error("path too long (%d chars, SHA1: %s): %s", pathlen,
 		      sha1_to_hex(sha1), path);
@@ -361,6 +364,7 @@
 
 	zip_dir = xmalloc(ZIP_DIRECTORY_MIN_SIZE);
 	zip_dir_size = ZIP_DIRECTORY_MIN_SIZE;
+	verbose = args->verbose;
 
 	if (args->base && plen > 0 && args->base[plen - 1] == '/') {
 		char *base = xstrdup(args->base);