xbps-bin: implement 'files' target, to show installed files for a pkg.

--HG--
extra : convert_revision : c522253a61c23e8439c6de343e713497a2a10033

bin/xbps-bin/main.c

@@ -45,9 +45,10 @@ usage(void)
 {
 	printf("Usage: xbps-bin [options] [action] [arguments]\n\n"
 	" Available actions:\n"
-        "    install, list, remove, show\n"
+        "    install, list, remove, show, files\n"
 	" Actions with arguments:\n"
 	"    install\t<pkgname>\n"
+	"    files\t<pkgname>\n"
 	"    remove\t<pkgname>\n"
 	"    show\t<pkgname>\n"
 	" Options shared by all actions:\n"
@@ -57,6 +58,7 @@ usage(void)
 	" Examples:\n"
 	"    $ xbps-bin install klibc\n"
 	"    $ xbps-bin -r /path/to/root install klibc\n"
+	"    $ xbps-bin files klibc\n"
 	"    $ xbps-bin list\n"
 	"    $ xbps-bin remove klibc\n"
 	"    $ xbps-bin show klibc\n");
@@ -207,7 +209,17 @@ main(int argc, char **argv)
 
 		rv = show_pkg_info_from_metadir(argv[1]);
 		if (rv != 0) {
-			printf("Package %s not installed\n", argv[1]);
+			printf("Package %s not installed.\n", argv[1]);
+			exit(EXIT_FAILURE);
+		}
+	} else if (strcasecmp(argv[0], "files") == 0) {
+		/* Shows files installed by a binary package. */
+		if (argc != 2)
+			usage();
+
+		rv = show_pkg_files_from_metadir(argv[1]);
+		if (rv != 0) {
+			printf("Package %s not installed.\n", argv[1]);
 			exit(EXIT_FAILURE);
 		}
 	} else {

bin/xbps-repo/util.c

@@ -35,6 +35,7 @@
 #include "util.h"
 
 static void	show_pkg_info(prop_dictionary_t);
+static int	show_pkg_files(prop_object_t, void *, bool *);
 static int	show_pkg_namedesc(prop_object_t, void *, bool *);
 static int	list_strings_in_array2(prop_object_t, void *, bool *);
 
@@ -192,6 +193,59 @@ show_pkg_info_from_metadir(const char *pkgname)
 	return 0;
 }
 
+int
+show_pkg_files_from_metadir(const char *pkgname)
+{
+	prop_dictionary_t pkgd;
+	size_t len = 0;
+	char *plist, *path;
+	int rv = 0;
+
+	/* XBPS_META_PATH/metadata/<pkgname>/XBPS_PKGFILES + NULL */
+	len = strlen(XBPS_META_PATH) + strlen(pkgname) +
+	    strlen(XBPS_PKGFILES) + 12;
+	path = malloc(len);
+	if (path == NULL)
+		return EINVAL;
+
+	(void)snprintf(path, len, "%s/metadata/%s", XBPS_META_PATH, pkgname);
+
+	plist = xbps_append_full_path(true, path, XBPS_PKGFILES);
+	if (plist == NULL) {
+		free(path);
+		return EINVAL;
+	}
+	free(path);
+
+	pkgd = prop_dictionary_internalize_from_file(plist);
+	if (pkgd == NULL) {
+		free(plist);
+		return errno;
+	}
+
+	rv = xbps_callback_array_iter_in_dict(pkgd, "filelist",
+	    show_pkg_files, NULL);
+	prop_object_release(pkgd);
+	free(plist);
+
+	return rv;
+}
+
+static int
+show_pkg_files(prop_object_t obj, void *arg, bool *loop_done)
+{
+	const char *file = NULL;
+
+	(void)arg;
+	(void)loop_done;
+
+	prop_dictionary_get_cstring_nocopy(obj, "file", &file);
+	if (file != NULL)
+		printf("%s\n", file);
+
+	return 0;
+}
+
 int
 show_pkg_info_from_repolist(prop_object_t obj, void *arg, bool *loop_done)
 {

bin/xbps-repo/util.h

@@ -28,6 +28,7 @@
 
 int	search_string_in_pkgs(prop_object_t, void *, bool *);
 int	show_pkg_info_from_metadir(const char *);
+int	show_pkg_files_from_metadir(const char *);
 int	show_pkg_info_from_repolist(prop_object_t, void *, bool *);
 int	list_strings_in_array(prop_object_t, void *, bool *);
 

include/xbps_api.h

@@ -49,6 +49,7 @@
 
 /* Filename of the package properties plist file. */
 #define XBPS_PKGPROPS		"props.plist"
+#define XBPS_PKGFILES		"files.plist"
 
 /* Unpack flags */
 #define XBPS_UNPACK_VERBOSE	0x00000001