xbps-bin: implement full support for the 'show' target.

This will try to show the package information by looking in
all repositories registered. The first one that has the package
info wins.

--HG--
extra : convert_revision : 33b93fd115a765d696af76ca20c1669ef277cd35

utils/plist.c

@@ -33,7 +33,7 @@
 
 #include "xbps_api.h"
 
-static bool xbps_list_strings_in_array2(prop_object_t);
+static bool xbps_list_strings_in_array2(prop_object_t, void *);
 
 bool
 xbps_add_obj_to_dict(prop_dictionary_t dict, prop_object_t obj,
@@ -66,7 +66,8 @@ xbps_add_obj_to_array(prop_array_t array, prop_object_t obj)
 
 bool
 xbps_callback_array_iter_in_dict(prop_dictionary_t dict, const char *key,
-				 bool (*func)(prop_object_t))
+				 bool (*func)(prop_object_t, void *),
+				 void *arg)
 {
 	prop_object_iterator_t iter;
 	prop_object_t obj;
@@ -79,7 +80,7 @@ xbps_callback_array_iter_in_dict(prop_dictionary_t dict, const char *key,
 		return false;
 
 	while ((obj = prop_object_iterator_next(iter))) {
-		if (!(*func)(obj)) {
+		if (!(*func)(obj, arg)) {
 			prop_object_iterator_release(iter);
 			return false;
 		}
@@ -257,7 +258,7 @@ xbps_show_pkg_info(prop_dictionary_t dict)
 			printf("\n\t");
 			if (!xbps_callback_array_iter_in_dict(dict,
 			    prop_dictionary_keysym_cstring_nocopy(obj),
-			    xbps_list_strings_in_array2))
+			    xbps_list_strings_in_array2, NULL))
 				return;
 			printf("\n");
 		}
@@ -267,7 +268,38 @@ xbps_show_pkg_info(prop_dictionary_t dict)
 }
 
 bool
-xbps_list_pkgs_in_dict(prop_object_t obj)
+xbps_show_pkg_info_from_repolist(prop_object_t obj, void *arg)
+{
+	prop_dictionary_t dict, pkgdict;
+	prop_string_t oloc;
+	const char *repofile, *repoloc;
+
+	if (prop_object_type(obj) != PROP_TYPE_STRING)
+		return false;
+
+	repofile = prop_string_cstring_nocopy(obj);
+	dict = prop_dictionary_internalize_from_file(repofile);
+	pkgdict = xbps_find_pkg_in_dict(dict, arg);
+	if (pkgdict == NULL)
+		return false;
+
+	oloc = prop_dictionary_get(dict, "location-remote");
+	if (oloc == NULL)
+		oloc = prop_dictionary_get(dict, "location-local");
+
+	if (oloc && prop_object_type(oloc) == PROP_TYPE_STRING)
+		repoloc = prop_string_cstring_nocopy(oloc);
+	else
+		return false;
+
+	printf("Repository: %s\n", repoloc);
+	xbps_show_pkg_info(pkgdict);
+
+	return true;
+}
+
+bool
+xbps_list_pkgs_in_dict(prop_object_t obj, void *arg)
 {
 	const char *pkgname, *version, *short_desc;
 
@@ -286,7 +318,7 @@ xbps_list_pkgs_in_dict(prop_object_t obj)
 }
 
 static bool
-xbps_list_strings_in_array2(prop_object_t obj)
+xbps_list_strings_in_array2(prop_object_t obj, void *arg)
 {
 	static uint16_t count;
 
@@ -304,7 +336,7 @@ xbps_list_strings_in_array2(prop_object_t obj)
 }
 
 bool
-xbps_list_strings_in_array(prop_object_t obj)
+xbps_list_strings_in_array(prop_object_t obj, void *arg)
 {
 	if (prop_object_type(obj) != PROP_TYPE_STRING)
 		return false;

utils/plist.h

@@ -58,13 +58,15 @@ xbps_add_obj_to_array(prop_array_t, prop_object_t);
  * Arguments:
  * 	- prop_dictionary_t: dictionary to search on.
  *	- const char *: key of the array.
- *	- (*func)(prop_object_t): callback associated.
+ *	- (*func)(prop_object_t, void *): callback associated.
+ *	- void *: argument passed to the callback.
  *
  * Returns true on success, false otherwise and the loop is terminated.
  */
 bool
 xbps_callback_array_iter_in_dict(prop_dictionary_t, const char *,
-				 bool (*func)(prop_object_t));
+				 bool (*func)(prop_object_t, void *),
+				 void *);
 
 /*
  * Finds a package's dictionary into the main dictionary.
@@ -108,22 +110,24 @@ xbps_get_array_iter_from_dict(prop_dictionary_t, const char *);
  *
  * Arguments:
  * 	- prop_object_t: the object to be processed.
+ * 	- void *: argument passed.
  *
  * Returns true on success, false otherwise.
  */
 bool
-xbps_list_pkgs_in_dict(prop_object_t);
+xbps_list_pkgs_in_dict(prop_object_t, void *);
 
 /*
  * Lists all string values in an array object in a dictionary.
  *
  * Arguments:
  * 	- prop_object_t: the object to be processed.
+ * 	- void *: argument passed.
  *
  * Returns true on success, false otherwise.
  */
 bool
-xbps_list_strings_in_array(prop_object_t);
+xbps_list_strings_in_array(prop_object_t, void *);
 
 /*
  * Registers a repository specified by an URI into the pool.
@@ -146,4 +150,18 @@ xbps_register_repository(const char *);
 void
 xbps_show_pkg_info(prop_dictionary_t);
 
+/*
+ * Shows information of a package by searching in all repositories
+ * registered in the pool. It will show information from the
+ * first repository that has the package.
+ *
+ * Arguments:
+ * 	- prop_object_t: the object to be processed.
+ * 	- const char *: passed argument (pkgname string).
+ *
+ * Returns true on success, false otherwise.
+ */
+bool
+xbps_show_pkg_info_from_repolist(prop_object_t obj, void *arg);
+
 #endif /* !_XBPS_PLIST_H_ */

utils/xbps-bin.c

@@ -39,6 +39,7 @@ typedef struct repository_info {
 	size_t total_pkgs;
 } repo_info_t;
 
+static prop_dictionary_t getrepolist_dict(void);
 static bool pkgindex_getinfo(prop_dictionary_t, repo_info_t *);
 static void usage(void);
 
@@ -90,6 +91,21 @@ pkgindex_getinfo(prop_dictionary_t dict, repo_info_t *ri)
 	return true;
 }
 
+static prop_dictionary_t
+getrepolist_dict(void)
+{
+	prop_dictionary_t dict;
+
+	dict = prop_dictionary_internalize_from_file(XBPS_REPOLIST_PATH);
+	if (dict == NULL) {
+		printf("cannot find repository list file: %s\n",
+		    strerror(errno));
+		exit(EINVAL);
+	}
+
+	return dict;
+}
+
 int
 main(int argc, char **argv)
 {
@@ -149,22 +165,20 @@ main(int argc, char **argv)
 		if (argc != 2)
 			usage();
 
-		dict =
-		    prop_dictionary_internalize_from_file(XBPS_REPOLIST_PATH);
-		if (dict == NULL) {
-			printf("cannot find repository list file: %s\n",
-			    strerror(errno));
-			exit(EINVAL);
-		}
-
-		xbps_callback_array_iter_in_dict(dict, "repository-list",
-		    xbps_list_strings_in_array);
+		xbps_callback_array_iter_in_dict(getrepolist_dict(),
+		    "repository-list", xbps_list_strings_in_array, NULL);
 
 	} else if (strcmp(argv[1], "show") == 0) {
 		/* Shows info about a binary package. */
 		if (argc != 3)
 			usage();
 
+		if (!xbps_callback_array_iter_in_dict(getrepolist_dict(),
+		    "repository-list", xbps_show_pkg_info_from_repolist,
+		    argv[2])) {
+			printf("Package %s doesn't exist on any repository.\n",
+			    argv[2]);
+		}
 	} else {
 		usage();
 	}

utils/xbps-pkgdb.c

@@ -292,7 +292,7 @@ main(int argc, char **argv)
 
 		dbdict = prop_dictionary_internalize_from_file(dbfile);
 		if (!xbps_callback_array_iter_in_dict(dbdict,
-		    "packages", xbps_list_pkgs_in_dict))
+		    "packages", xbps_list_pkgs_in_dict, NULL))
 			exit(EINVAL);
 
 	} else if (strcmp(argv[1], "version") == 0) {