Rename lib/regpkgdb_dictionary.c to lib/pkgdb.c.

lib/pkgdb.c

@@ -0,0 +1,224 @@
+/*-
+ * Copyright (c) 2008-2012 Juan Romero Pardines.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include "xbps_api_impl.h"
+
+int HIDDEN
+xbps_pkgdb_init(struct xbps_handle *xhp)
+{
+	int rv;
+
+	assert(xhp != NULL);
+
+	if (xhp->pkgdb != NULL)
+		return 0;
+
+	rv = xbps_pkgdb_update(xhp, false);
+	if (rv != 0) {
+		if (rv != ENOENT)
+			xbps_dbg_printf("[pkgdb] cannot internalize "
+			    "pkgdb array: %s\n", strerror(rv));
+
+		return rv;
+	}
+	xbps_dbg_printf("[pkgdb] initialized ok.\n");
+
+	return 0;
+}
+
+int
+xbps_pkgdb_update(struct xbps_handle *xhp, bool flush)
+{
+	char *plist, *metadir;
+	int rv = 0;
+
+	plist = xbps_xasprintf("%s/%s/%s", xhp->rootdir,
+	    XBPS_META_PATH, XBPS_PKGDB);
+	if (plist == NULL)
+		return ENOMEM;
+
+	if (xhp->pkgdb != NULL && flush) {
+		metadir = xbps_xasprintf("%s/%s", xhp->rootdir,
+		    XBPS_META_PATH);
+		if (metadir == NULL) {
+			free(plist);
+			return ENOMEM;
+		}
+		/* Create metadir if doesn't exist */
+		if (access(metadir, X_OK) == -1) {
+			if (errno == ENOENT) {
+				if (xbps_mkpath(metadir, 0755) != 0) {
+					xbps_dbg_printf("[pkgdb] failed to "
+					    "create metadir %s: %s\n", metadir,
+					    strerror(errno));
+					rv = errno;
+					free(metadir);
+					free(plist);
+					return rv;
+				}
+			} else {
+				free(plist);
+				return errno;
+			}
+		}
+		free(metadir);
+		/* flush dictionary to storage */
+		if (!prop_array_externalize_to_zfile(xhp->pkgdb, plist)) {
+			free(plist);
+			return errno;
+		}
+		prop_object_release(xhp->pkgdb);
+		xhp->pkgdb = NULL;
+	}
+	/* update copy in memory */
+	xhp->pkgdb = prop_array_internalize_from_zfile(plist);
+	if (xhp->pkgdb == NULL)
+		rv = errno;
+
+	free(plist);
+
+	return rv;
+}
+
+void HIDDEN
+xbps_pkgdb_release(struct xbps_handle *xhp)
+{
+	assert(xhp != NULL);
+
+	if (xhp->pkgdb == NULL)
+		return;
+
+	prop_object_release(xhp->pkgdb);
+	xhp->pkgdb = NULL;
+	xbps_dbg_printf("[pkgdb] released ok.\n");
+}
+
+static int
+foreach_pkg_cb(int (*fn)(prop_object_t, void *, bool *),
+	       void *arg,
+	       bool reverse)
+{
+	struct xbps_handle *xhp = xbps_handle_get();
+	int rv;
+
+	if ((rv = xbps_pkgdb_init(xhp)) != 0)
+		return rv;
+
+	if (reverse)
+		rv = xbps_callback_array_iter_reverse(xhp->pkgdb, fn, arg);
+	else
+		rv = xbps_callback_array_iter(xhp->pkgdb, fn, arg);
+
+	return rv;
+}
+
+int
+xbps_pkgdb_foreach_reverse_pkg_cb(int (*fn)(prop_object_t, void *, bool *),
+				  void *arg)
+{
+	return foreach_pkg_cb(fn, arg, true);
+}
+
+int
+xbps_pkgdb_foreach_pkg_cb(int (*fn)(prop_object_t, void *, bool *),
+			  void *arg)
+{
+	return foreach_pkg_cb(fn, arg, false);
+}
+
+prop_dictionary_t
+xbps_pkgdb_get_pkgd(const char *pkg, bool bypattern)
+{
+	struct xbps_handle *xhp = xbps_handle_get();
+	prop_dictionary_t pkgd = NULL;
+
+	if (xbps_pkgdb_init(xhp) != 0)
+		return NULL;
+
+	if (bypattern)
+		pkgd = xbps_find_pkg_in_array_by_pattern(xhp->pkgdb, pkg);
+	else
+		pkgd = xbps_find_pkg_in_array_by_name(xhp->pkgdb, pkg);
+
+	if (pkgd != NULL)
+		return prop_dictionary_copy(pkgd);
+
+	return NULL;
+}
+
+bool
+xbps_pkgdb_remove_pkgd(const char *pkg, bool bypattern, bool flush)
+{
+	struct xbps_handle *xhp = xbps_handle_get();
+	bool rv = false;
+
+	if (xbps_pkgdb_init(xhp) != 0)
+		return false;
+
+	if (bypattern)
+		rv = xbps_remove_pkg_from_array_by_pattern(xhp->pkgdb, pkg);
+	else
+		rv = xbps_remove_pkg_from_array_by_name(xhp->pkgdb, pkg);
+
+	if (!flush || !rv)
+		return rv;
+
+	if ((xbps_pkgdb_update(xhp, true)) != 0)
+		return false;
+
+	return true;
+}
+
+bool
+xbps_pkgdb_replace_pkgd(prop_dictionary_t pkgd,
+			const char *pkg,
+			bool bypattern,
+			bool flush)
+{
+	struct xbps_handle *xhp = xbps_handle_get();
+	int rv;
+
+	if (xbps_pkgdb_init(xhp) != 0)
+		return false;
+
+	if (bypattern)
+		rv = xbps_array_replace_dict_by_pattern(xhp->pkgdb, pkgd, pkg);
+	else
+		rv = xbps_array_replace_dict_by_name(xhp->pkgdb, pkgd, pkg);
+
+	if (!flush || rv != 0)
+		return rv;
+
+	if ((xbps_pkgdb_update(xhp, true)) != 0)
+		return false;
+
+	return true;
+}