void-packages/utils/xbps-pkgdb.c
Juan RP cf2015f692 xbps-pkgdb: add function to internalize plist file.
--HG--
extra : convert_revision : 0a303377d6c17b80eb9ff36b0309247a624c3e3e
2008-10-30 08:47:00 +01:00

410 lines
11 KiB
C

/*-
* Copyright (c) 2008 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 <limits.h>
#include <prop/proplib.h>
#define _XBPS_PKGDB_DEFPATH "/var/xbps/.xbps-pkgdb.plist"
typedef struct pkg_data {
const char *pkgname;
const char *version;
const char *short_desc;
} pkg_data_t;
static void usage(void);
static void add_array_to_dict(prop_dictionary_t, prop_array_t, const char *);
static void add_obj_to_array(prop_array_t, prop_object_t);
static prop_dictionary_t make_dict_from_pkg(pkg_data_t *);
static prop_dictionary_t find_pkg_in_dict(prop_dictionary_t, const char *);
static void register_pkg(prop_dictionary_t, pkg_data_t *, const char *);
static void unregister_pkg(prop_dictionary_t, const char *, const char *);
static void write_plist_file(prop_dictionary_t, const char *);
static void list_pkgs_in_dict(prop_dictionary_t);
static prop_dictionary_t get_dict_from_dbfile(const char *);
static void
usage(void)
{
printf("usage: xbps-pkgdb <action> [args]\n");
printf("\n");
printf(" Available actions:\n");
printf(" list, register, unregister, version\n");
printf(" Action arguments:\n");
printf(" list\t[none]\n");
printf(" register\t[<pkgname> <version> <shortdesc>]\n");
printf(" unregister\t[<pkgname> <version>]\n");
printf(" version\t[<pkgname>]\n");
printf(" Environment:\n");
printf(" XBPS_PKGDB_FPATH\tPath to xbps pkgdb plist file\n");
printf("\n");
printf(" Examples:\n");
printf(" $ xbps-pkgdb list\n");
printf(" $ xbps-pkgdb register pkgname 2.0 \"A short description\"\n");
printf(" $ xbps-pkgdb unregister pkgname 2.0\n");
printf(" $ xbps-pkgdb version pkgname\n");
exit(1);
}
static prop_dictionary_t
find_pkg_in_dict(prop_dictionary_t dict, const char *pkgname)
{
prop_array_t array;
prop_object_iterator_t iter;
prop_object_t obj;
const char *dpkgn;
if (dict == NULL || pkgname == NULL)
return NULL;
array = prop_dictionary_get(dict, "packages_installed");
if (array == NULL || prop_object_type(array) != PROP_TYPE_ARRAY)
return NULL;
iter = prop_array_iterator(array);
if (iter == NULL)
return NULL;
while ((obj = prop_object_iterator_next(iter))) {
prop_dictionary_get_cstring_nocopy(obj, "pkgname", &dpkgn);
if (strcmp(dpkgn, pkgname) == 0)
break;
}
prop_object_iterator_release(iter);
return obj;
}
static void
add_obj_to_array(prop_array_t array, prop_object_t obj)
{
if (array == NULL || obj == NULL) {
printf("%s: NULL array/obj\n", __func__);
exit(1);
}
if (!prop_array_add(array, obj)) {
prop_object_release(array);
printf("%s: couldn't add obj into array: %s\n", __func__,
strerror(errno));
exit(1);
}
prop_object_release(obj);
}
static void
add_array_to_dict(prop_dictionary_t dict, prop_array_t array, const char *key)
{
if (dict == NULL || array == NULL || key == NULL) {
printf("%s: NULL dict/array/key\n", __func__);
exit(1);
}
if (!prop_dictionary_set(dict, key, array)) {
printf("%s: couldn't add array (%s): %s\n",
__func__, key, strerror(errno));
exit(1);
}
prop_object_release(array);
}
static prop_dictionary_t
make_dict_from_pkg(pkg_data_t *pkg)
{
prop_dictionary_t dict;
if (pkg == NULL || pkg->pkgname == NULL || pkg->version == NULL ||
pkg->short_desc == NULL)
return NULL;
dict = prop_dictionary_create();
if (dict == NULL)
return NULL;
prop_dictionary_set_cstring_nocopy(dict, "pkgname", pkg->pkgname);
prop_dictionary_set_cstring_nocopy(dict, "version", pkg->version);
prop_dictionary_set_cstring_nocopy(dict, "short_desc", pkg->short_desc);
return dict;
}
static void
register_pkg(prop_dictionary_t dict, pkg_data_t *pkg, const char *dbfile)
{
prop_dictionary_t pkgdict;
prop_array_t array;
if (dict == NULL || pkg == NULL || dbfile == NULL) {
printf("%s: NULL dict/pkg/dbfile\n", __func__);
exit(1);
}
pkgdict = make_dict_from_pkg(pkg);
if (pkgdict == NULL) {
printf("%s: NULL pkgdict\n", __func__);
exit(1);
}
array = prop_dictionary_get(dict, "packages_installed");
if (array == NULL || prop_object_type(array) != PROP_TYPE_ARRAY) {
printf("%s: NULL or incorrect array type\n", __func__);
exit(1);
}
add_obj_to_array(array, pkgdict);
write_plist_file(dict, dbfile);
}
static void
unregister_pkg(prop_dictionary_t dict, const char *pkgname, const char *dbfile)
{
prop_array_t array;
prop_object_t obj;
prop_object_iterator_t iter;
const char *curpkgn;
int i = 0;
bool found = false;
if (dict == NULL || pkgname == NULL) {
printf("%s: NULL dict/pkgname\n", __func__);
exit(1);
}
array = prop_dictionary_get(dict, "packages_installed");
if (array == NULL || prop_object_type(array) != PROP_TYPE_ARRAY) {
printf("%s: NULL or incorrect array type\n", __func__);
exit(1);
}
iter = prop_array_iterator(array);
if (iter == NULL) {
printf("%s: NULL iter\n", __func__);
exit(1);
}
/* Iterate over the array of dictionaries to find its index. */
while ((obj = prop_object_iterator_next(iter))) {
prop_dictionary_get_cstring_nocopy(obj, "pkgname", &curpkgn);
if (strcmp(curpkgn, pkgname) == 0) {
found = true;
break;
}
i++;
}
if (found == false) {
printf("=> ERROR: %s not registered in database.\n", pkgname);
exit(1);
}
prop_array_remove(array, i);
add_array_to_dict(dict, array, "packages_installed");
write_plist_file(dict, dbfile);
}
static void
write_plist_file(prop_dictionary_t dict, const char *file)
{
if (dict == NULL || file == NULL) {
printf("=> ERROR: couldn't write to database file.\n");
exit(1);
}
if (!prop_dictionary_externalize_to_file(dict, file)) {
prop_object_release(dict);
perror("=> ERROR: couldn't write to database file");
exit(1);
}
}
static void
list_pkgs_in_dict(prop_dictionary_t dict)
{
prop_array_t array;
prop_object_t obj;
prop_object_iterator_t iter;
const char *pkgname, *version, *short_desc;
if (dict == NULL)
exit(1);
array = prop_dictionary_get(dict, "packages_installed");
if (array == NULL || prop_object_type(array) != PROP_TYPE_ARRAY) {
printf("%s: NULL or incorrect array type\n", __func__);
exit(1);
}
iter = prop_array_iterator(array);
if (iter == NULL) {
printf("%s: NULL iter\n", __func__);
exit(1);
}
while ((obj = prop_object_iterator_next(iter))) {
prop_dictionary_get_cstring_nocopy(obj, "pkgname", &pkgname);
prop_dictionary_get_cstring_nocopy(obj, "version", &version);
prop_dictionary_get_cstring_nocopy(obj, "short_desc", &short_desc);
if (pkgname && version && short_desc)
printf("%s-%s\t%s\n", pkgname, version, short_desc);
}
prop_object_iterator_release(iter);
}
static prop_dictionary_t
get_dict_from_dbfile(const char *file)
{
prop_dictionary_t dict;
dict = prop_dictionary_internalize_from_file(file);
if (dict == NULL) {
perror("=> ERROR: couldn't find database file");
exit(1);
}
return dict;
}
int
main(int argc, char **argv)
{
prop_dictionary_t dbdict = NULL, pkgdict;
prop_array_t dbarray = NULL;
pkg_data_t pkg;
const char *version;
char dbfile[PATH_MAX], *dbfileenv, *tmppath, *in_chroot_env;
bool in_chroot = false;
if (argc < 2)
usage();
if ((dbfileenv = getenv("XBPS_PKGDB_FPATH")) != NULL) {
/* Use path as defined by XBPS_PKGDB_FPATH env var */
tmppath = strncpy(dbfile, dbfileenv, sizeof(dbfile));
if (sizeof(*tmppath) >= sizeof(dbfile))
exit(1);
} else {
/* Use default path */
tmppath =
strncpy(dbfile, _XBPS_PKGDB_DEFPATH, sizeof(dbfile));
if (sizeof(*tmppath) >= sizeof(dbfile))
exit(1);
}
/* nul terminate string */
dbfile[sizeof(dbfile) - 1] = '\0';
in_chroot_env = getenv("in_chroot");
if (in_chroot_env != NULL)
in_chroot = true;
if (strcmp(argv[1], "register") == 0) {
/* Registers a package into the database */
if (argc != 5)
usage();
dbdict = prop_dictionary_internalize_from_file(dbfile);
if (dbdict == NULL) {
/* Create package dictionary and add its objects. */
pkg.pkgname = argv[2];
pkg.version = argv[3];
pkg.short_desc = argv[4];
pkgdict = make_dict_from_pkg(&pkg);
if (pkgdict == NULL) {
printf("=> ERROR: couldn't register pkg\n");
exit(1);
}
/* Add pkg dictionary into array. */
dbarray = prop_array_create();
add_obj_to_array(dbarray, pkgdict);
/* Add array into main dictionary. */
dbdict = prop_dictionary_create();
add_array_to_dict(dbdict, dbarray, "packages_installed");
/* Write main dictionary to file. */
write_plist_file(dbdict, dbfile);
printf("%s==> Package database file not found, "
"creating it.\n", in_chroot ? "[chroot] " : "");
prop_object_release(dbdict);
} else {
/* Check if pkg is already registered. */
pkgdict = find_pkg_in_dict(dbdict, argv[2]);
if (pkgdict != NULL) {
printf("=> Package %s-%s already registered.\n",
argv[2], argv[3]);
exit(0);
}
pkg.pkgname = argv[2];
pkg.version = argv[3];
pkg.short_desc = argv[4];
register_pkg(dbdict, &pkg, dbfile);
}
printf("%s=> %s-%s registered successfully.\n",
in_chroot ? "[chroot] " : "", argv[2], argv[3]);
} else if (strcmp(argv[1], "unregister") == 0) {
/* Unregisters a package from the database */
if (argc != 4)
usage();
unregister_pkg(get_dict_from_dbfile(dbfile), argv[2], dbfile);
printf("%s=> %s-%s unregistered successfully.\n",
in_chroot ? "[chroot] " : "", argv[2], argv[3]);
} else if (strcmp(argv[1], "list") == 0) {
/* Lists packages currently registered in database */
if (argc != 2)
usage();
list_pkgs_in_dict(get_dict_from_dbfile(dbfile));
} else if (strcmp(argv[1], "version") == 0) {
/* Prints version of an installed package */
if (argc != 3)
usage();
pkgdict = find_pkg_in_dict(get_dict_from_dbfile(dbfile), argv[2]);
if (pkgdict == NULL)
exit(1);
if (!prop_dictionary_get_cstring_nocopy(pkgdict, "version", &version))
exit(1);
printf("%s\n", version);
} else {
usage();
}
exit(0);
}