xbps-repo: add -c flag to set cachedir, update manpage.

--HG--
extra : convert_revision : xtraeme%40gmail.com-20091128025616-fe43609n1rosmt6u

bin/xbps-repo/main.c

@@ -52,6 +52,7 @@ usage(void)
 	"    show-deps\t<pkgname>\n"
 	"    show-files\t<pkgname>\n"
 	" Options shared by all actions:\n"
+	"    -c\t\t<cachedir>\n"
 	"    -r\t\t<rootdir>\n"
 	"    -V\t\tPrints xbps release version\n"
 	"\n"
@@ -74,8 +75,11 @@ main(int argc, char **argv)
 	char *root;
 	int c, rv = 0;
 
-	while ((c = getopt(argc, argv, "Vr:")) != -1) {
+	while ((c = getopt(argc, argv, "Vcr:")) != -1) {
 		switch (c) {
+		case 'c':
+			xbps_set_cachedir(optarg);
+			break;
 		case 'r':
 			/* To specify the root directory */
 			root = optarg;

bin/xbps-repo/xbps-repo.8.txt

@@ -23,6 +23,13 @@ and show information about a binary package in repository pool.
 
 OPTIONS
 -------
+*-c* 'cachedir'::
+	Sets the 'cache' directory to store downloaded binary packages
+	from remote repositories.
+	By default it's set to '/var/cache/xbps' and it's always relative
+	to the 'root' directory. So if you use a 'rootdir' of '/blah',
+	it will become '/blah/cachedir'.
+
 *-r* 'rootdir'::
 	Sets the 'root' directory. By default the root directory is
 	set to '/'. Please note that the database directory is always
@@ -84,6 +91,16 @@ Please note that all targets are *case insensitive*.
 	Syncs the package index file for all registered remote repositories.
 	The new file will be fetched if local and remote size/mtime do not match.
 
+FILES
+-----
+*/var/db/xbps/repositories.plist*:: Registered repository list.
+ +
+
+*/var/db/xbps/<remoterepodir>/pkg-index.plist*:: Remote repository package index file.
+ +
+
+*/var/cache/xbps*:: xbps _cache_ directory for downloaded binary packages.
+ +
 
 BUGS
 ----