libxbps: improve returned errnos for repository API functions.

- xbps_repository_update_packages: return ENOENT if regpkgdb is NULL
  (no packages currently registered).
- xbps_repository_update_packages: return EEXIST if no updates are
  available.
- xbps_repository_pool: return ENOTSUP if no repositories were
  registered.
- make xbps-{bin,repo} handle ENOTSUP errors.

bin/xbps-bin/install.c

@@ -192,9 +192,13 @@ autoupdate_pkgs(bool yes, bool show_download_pkglist_url)
 		if (rv == ENOENT) {
 			printf("No packages currently registered.\n");
 			return 0;
-		} else if (rv == ENXIO) {
+		} else if (rv == EEXIST) {
 			printf("All packages are up-to-date.\n");
 			return 0;
+		} else if (rv == ENOTSUP) {
+			xbps_error_printf("xbps-bin: no repositories currently "
+			    "registered!\n");
+			return -1;
 		} else {
 			xbps_error_printf("xbps-bin: unexpected error %s\n",
 			    strerror(rv));
@@ -246,8 +250,11 @@ install_new_pkg(const char *pkg)
 	}
 	if ((rv = xbps_repository_install_pkg(pkgpatt)) != 0) {
 		if (rv == ENOENT) {
-			fprintf(stderr, "xbps-bin: unable to locate '%s' in "
+			xbps_error_printf("xbps-bin: unable to locate '%s' in "
 			    "repository pool.\n", pkg);
+		} else if (rv == ENOTSUP) {
+			xbps_error_printf("xbps-bin: no repositories  "
+			    "currently registered!\n");
 		} else {
 			xbps_error_printf("xbps-bin: unexpected error: %s\n",
 			    strerror(rv));
@@ -275,6 +282,9 @@ update_pkg(const char *pkgname)
 		    "repository pool.\n", pkgname);
 	else if (rv == ENODEV)
 		printf("Package '%s' not installed.\n", pkgname);
+	else if (rv == ENOTSUP)
+		xbps_error_printf("xbps-bin: no repositories currently "
+		    "registered!\n");
 	else if (rv != 0) {
 		xbps_error_printf("xbps-bin: unexpected error %s\n",
 		    strerror(rv));

bin/xbps-repo/main.c

@@ -154,7 +154,13 @@ main(int argc, char **argv)
 		if (argc != 1)
 			usage();
 
-		xbps_repository_pool_foreach(repo_list_uri_cb, NULL);
+		rv = xbps_repository_pool_foreach(repo_list_uri_cb, NULL);
+		if (rv == ENOTSUP)
+			xbps_error_printf("xbps-repo: no repositories "
+			    "currently registered!\n");
+		else if (rv != 0 && rv != ENOTSUP)
+			xbps_error_printf("xbps-repo: failed to initialize "
+			    "rpool: %s\n", strerror(rv));
 
 	} else if (strcasecmp(argv[0], "search") == 0) {
 		/*
@@ -164,7 +170,13 @@ main(int argc, char **argv)
 		if (argc != 2)
 			usage();
 
-		xbps_repository_pool_foreach(repo_search_pkgs_cb, argv[1]);
+		rv = xbps_repository_pool_foreach(repo_search_pkgs_cb, argv[1]);
+		if (rv == ENOTSUP)
+			xbps_error_printf("xbps-repo: no repositories "
+			    "currently registered!\n");
+		else if (rv != 0 && rv != ENOTSUP)
+			xbps_error_printf("xbps-repo: failed to initialize "
+			    "rpool: %s\n", strerror(rv));
 
 	} else if (strcasecmp(argv[0], "show") == 0) {
 		/* Shows info about a binary package. */
@@ -175,11 +187,12 @@ main(int argc, char **argv)
 		if (rv == ENOENT) {
 			xbps_printf("Unable to locate package "
 			    "`%s' in repository pool.\n", argv[1]);
-			goto out;
+		} else if (rv == ENOTSUP) {
+			xbps_error_printf("xbps-repo: no repositories "
+			    "currently registered!\n");
 		} else if (rv != 0 && rv != ENOENT) {
 			xbps_error_printf("xbps-repo: unexpected error '%s' ",
 			    "searching for '%s'\n", strerror(rv), argv[1]);
-			goto out;
 		}
 
 	} else if (strcasecmp(argv[0], "show-deps") == 0) {
@@ -191,11 +204,12 @@ main(int argc, char **argv)
 		if (rv == ENOENT) {
 			xbps_printf("Unable to locate package "
 			    "`%s' in repository pool.\n", argv[1]);
-			goto out;
+		} else if (rv == ENOTSUP) {
+			xbps_error_printf("xbps-repo: no repositories "
+			    "currently registered!\n");
 		} else if (rv != 0 && rv != ENOENT) {
 			xbps_error_printf("xbps-repo: unexpected error '%s' "
 			    "searching for '%s'\n", strerror(errno), argv[1]);
-			goto out;
 		}
 
 	} else if (strcasecmp(argv[0], "show-files") == 0) {
@@ -206,13 +220,16 @@ main(int argc, char **argv)
 		pkgd = xbps_repository_pool_dictionary_metadata_plist(argv[1],
 		    XBPS_PKGFILES);
 		if (pkgd == NULL) {
-			if (errno != ENOENT) {
+			if (errno == ENOTSUP) {
+				xbps_error_printf("xbps-repo: no repositories "
+				    "currently registered!\n");
+			} else if (errno == ENOENT) {
+				xbps_printf("Unable to locate package `%s' "
+				    "in repository pool.\n", argv[1]);
+			} else {
 				xbps_error_printf("xbps-repo: unexpected "
 				    "error '%s' searching for '%s'\n",
 				    strerror(errno), argv[1]);
-			} else {
-				xbps_printf("Unable to locate package `%s' "
-				    "in repository pool.\n", argv[1]);
 			}
 			rv = errno;
 			goto out;
@@ -226,6 +243,10 @@ main(int argc, char **argv)
 			usage();
 
 		rv = repo_find_files_in_packages(argv[1]);
+		if (rv == ENOTSUP) {
+			xbps_error_printf("xbps-repo: no repositories "
+			    "currently registered!\n");
+		}
 
 	} else if (strcasecmp(argv[0], "genindex") == 0) {
 		/* Generates a package repository index plist file. */
@@ -240,6 +261,10 @@ main(int argc, char **argv)
 			usage();
 
 		rv = repository_sync();
+		if (rv == ENOTSUP) {
+			xbps_error_printf("xbps-repo: no repositories "
+			    "currently registered!\n");
+		}
 
 	} else {
 		usage();

include/xbps_api.h

@@ -55,7 +55,7 @@
  */
 #define XBPS_PKGINDEX_VERSION	"1.2"
 
-#define XBPS_API_VERSION	"20110728"
+#define XBPS_API_VERSION	"20110729"
 #define XBPS_VERSION		"0.10.0"
 
 /**

lib/repository_findpkg.c

@@ -185,6 +185,9 @@ xbps_repository_update_packages(void)
 	bool newpkg_found = false;
 
 	xhp = xbps_handle_get();
+	if (xhp->regpkgdb_dictionary == NULL)
+		return ENOENT;
+
 	iter = xbps_array_iter_from_dict(xhp->regpkgdb_dictionary, "packages");
 	if (iter == NULL)
 		return ENOENT;
@@ -214,7 +217,7 @@ xbps_repository_update_packages(void)
 	prop_object_iterator_release(iter);
 
 	if (!newpkg_found)
-		rv = ENXIO;
+		rv = EEXIST;
 
 	return rv;
 }

lib/repository_pool.c

@@ -123,12 +123,12 @@ xbps_repository_pool_init(void)
 			rv = errno;
 			goto out;
 		}
+		ntotal++;
 		if (sync_remote_repo(plist, repouri) == -1) {
 			nmissing++;
 			free(plist);
 			continue;
 		}
-		ntotal++;
 		/*
 		 * Iterate over the repository pool and add the dictionary
 		 * for current repository into the queue.
@@ -166,14 +166,14 @@ xbps_repository_pool_init(void)
 			free(plist);
 			if (errno == ENOENT) {
 				errno = 0;
-				xbps_dbg_printf("%s: missing pkg-index.plist "
-				    "for '%s' repository.\n", __func__, repouri);
+				xbps_dbg_printf("[rpool] missing pkg-index.plist "
+				    "for '%s' repository.\n", repouri);
 				nmissing++;
 				continue;
 			}
 			rv = errno;
-			xbps_dbg_printf("%s: cannot internalize plist %s: %s\n",
-			    __func__, plist, strerror(rv));
+			xbps_dbg_printf("[rpool] cannot internalize plist %s: %s\n",
+			    plist, strerror(rv));
 			goto out;
 		}
 		free(plist);
@@ -182,11 +182,14 @@ xbps_repository_pool_init(void)
 		SIMPLEQ_INSERT_TAIL(&rpool_queue, rpool, rp_entries);
 	}
 
-	if (ntotal - nmissing == 0)
+	if (ntotal - nmissing == 0) {
+		/* no repositories available, error out */
+		rv = ENOTSUP;
 		goto out;
+	}
 
 	repolist_initialized = true;
-	xbps_dbg_printf("%s: initialized ok.\n", __func__);
+	xbps_dbg_printf("[rpool] initialized ok.\n");
 out:
 	if (iter)
 		prop_object_iterator_release(iter);
@@ -218,7 +221,7 @@ xbps_repository_pool_release(void)
 
 	}
 	repolist_initialized = false;
-	xbps_dbg_printf("%s: released ok.\n", __func__);
+	xbps_dbg_printf("[rpool] released ok.\n");
 }
 
 int
@@ -236,13 +239,11 @@ xbps_repository_pool_foreach(
 	 */
 	if ((rv = xbps_repository_pool_init()) != 0) {
 		if (rv == ENOTSUP) {
-			xbps_dbg_printf("%s: empty repository list.\n",
-			    __func__);
+			xbps_dbg_printf("[rpool] empty repository list.\n");
 		} else if (rv != ENOENT && rv != ENOTSUP) {
-			xbps_dbg_printf("%s: couldn't initialize "
-			    "repository pool: %s\n", __func__, strerror(rv));
+			xbps_dbg_printf("[rpool] couldn't initialize: %s\n",
+			    strerror(rv));
 		}
-		xbps_end(xbps_handle_get());
 		return rv;
 	}
 
@@ -339,7 +340,7 @@ repo_find_best_pkg_cb(struct repository_pool_index *rpi,
 		if (errno && errno != ENOENT)
 			return errno;
 
-		xbps_dbg_printf("Package '%s' not found in repository "
+		xbps_dbg_printf("[rpool] Package '%s' not found in repository "
 		    "'%s'.\n", rpf->pattern, rpi->rpi_uri);
 	} else {
 		/*
@@ -356,8 +357,9 @@ repo_find_best_pkg_cb(struct repository_pool_index *rpi,
 		prop_object_release(instpkgd);
 
 		if (xbps_cmpver(repover, instver) <= 0) {
-			xbps_dbg_printf("Skipping '%s-%s' (installed: %s) "
-			    "from repository '%s'\n", rpf->pattern, repover, instver,
+			xbps_dbg_printf("[rpool] Skipping '%s-%s' "
+			    "(installed: %s) from repository `%s'\n",
+			    rpf->pattern, repover, instver,
 			    rpi->rpi_uri);
 			errno = EEXIST;
 			return 0;
@@ -365,7 +367,7 @@ repo_find_best_pkg_cb(struct repository_pool_index *rpi,
 		/*
 		 * New package version found, exit from the loop.
 		 */
-		xbps_dbg_printf("Found '%s-%s' (installed: %s) "
+		xbps_dbg_printf("[rpool] Found '%s-%s' (installed: %s) "
 		    "in repository '%s'.\n", rpf->pattern, repover,
 		    instver, rpi->rpi_uri);
 		prop_dictionary_set_cstring(rpf->pkgd, "repository",

lib/repository_sync_index.c

@@ -122,8 +122,8 @@ xbps_repository_sync_pkg_index(const char *uri)
 		goto out;
 	}
 	if ((rv = xbps_mkpath(metadir, 0755)) == -1) {
-		xbps_dbg_printf("%s: failed to create metadir `%s': %s\n",
-		    __func__, metadir, strerror(errno));
+		xbps_dbg_printf("[rsyncidx] failed to create metadir `%s': "
+		    "%s\n", metadir, strerror(errno));
 		goto out;
 	}
 	/*
@@ -144,8 +144,8 @@ xbps_repository_sync_pkg_index(const char *uri)
 		goto out;
 	}
 	/*
-	 * Full path to local repository directory to store the
-	 * package index file.
+	 * Full path to repository directory to store the pkg-index.plist
+	 * file.
 	 */
 	lrepodir = xbps_xasprintf("%s/%s/%s",
 	    xhp->rootdir, XBPS_META_PATH, uri_fixedp);
@@ -200,14 +200,20 @@ xbps_repository_sync_pkg_index(const char *uri)
 	/*
 	 * Create local repodir to store pkg-index.plist file.
 	 */
-	if ((rv = xbps_mkpath(lrepodir, 0755)) == -1)
+	if ((rv = xbps_mkpath(lrepodir, 0755)) == -1) {
+		xbps_dbg_printf("[rsyncidx] failed to create repodir "
+		    "`%s': %s\n", lrepodir, strerror(errno));
 		goto out;
+	}
 
 	/*
 	 * Rename to destination file now it has been fetched successfully.
 	 */
-	if ((rv = rename(tmp_metafile, lrepofile)) == 0)
-		rv = 1;
+	if ((rv = rename(tmp_metafile, lrepofile)) == -1)
+		xbps_dbg_printf("[rsyncidx] failed to rename `%s' to "
+		    "`%s': %s\n", tmp_metafile, lrepofile, strerror(errno));
+	else
+		rv = 1; /* success */
 
 out:
 	if (rpidx)