xbps/bin/xbps-uhelper/main.c
Juan RP b73d40092c xbps-uhelper: new targets: binpkgarch and binpkgver.
- binpkgarch: returns the architecture component of a xbps filename.
- binpkgver: returns the pkgver component of a xbps filename.
2014-09-05 21:06:06 +02:00

330 lines
8.9 KiB
C

/*-
* Copyright (c) 2008-2014 Juan Romero Pardines.
* Copyright (c) 2014 Enno Boland.
* 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 <strings.h>
#include <errno.h>
#include <ctype.h>
#include <assert.h>
#include <unistd.h>
#include <xbps.h>
#include "../xbps-install/defs.h"
static void __attribute__((noreturn))
usage(void)
{
fprintf(stdout,
"usage: xbps-uhelper [options] [action] [args]\n"
"\n"
" Available actions:\n"
" binpkgarch, binpkgver, cmpver, digest, fetch, getpkgdepname,\n"
" getpkgname, getpkgrevision, getpkgversion, pkgmatch, version,\n"
" real-version.\n"
"\n"
" Action arguments:\n"
" binpkgarch\t<binpkg>\n"
" binpkgver\t<binpkg>\n"
" cmpver\t\t<instver> <reqver>\n"
" digest\t\t<file> <file1+N>\n"
" fetch\t\t<URL[>filename]> <URL1+N[>filename]>\n"
" getpkgdepname\t<string>\n"
" getpkgdepversion\t<string>\n"
" getpkgname\t\t<string>\n"
" getpkgrevision\t<string>\n"
" getpkgversion\t<string>\n"
" pkgmatch\t\t<pkg-version> <pkg-pattern>\n"
" version\t\t<pkgname>\n"
" real-version\t<pkgname>\n"
" xfetch\t\t<oldfile> <URL[>filename]>\n"
"\n"
" Options shared by all actions:\n"
" -C\t\tPath to xbps.conf file.\n"
" -d\t\tDebugging messages to stderr.\n"
" -r\t\t<rootdir>\n"
" -V\t\tPrints the xbps release version\n"
"\n"
" Examples:\n"
" $ xbps-uhelper cmpver 'foo-1.0_1' 'foo-2.1_1'\n"
" $ xbps-uhelper digest file ...\n"
" $ xbps-uhelper fetch http://www.foo.org/file.blob ...\n"
" $ xbps-uhelper getpkgdepname 'foo>=0'\n"
" $ xbps-uhelper getpkgdepversion 'foo>=0'\n"
" $ xbps-uhelper getpkgname foo-2.0_1\n"
" $ xbps-uhelper getpkgrevision foo-2.0_1\n"
" $ xbps-uhelper getpkgversion foo-2.0_1\n"
" $ xbps-uhelper pkgmatch foo-1.0_1 'foo>=1.0'\n"
" $ xbps-uhelper version pkgname\n");
exit(EXIT_FAILURE);
}
static char*
fname(char *url) {
char *filename;
if( (filename = strrchr(url, '>')) ) {
*filename = '\0';
} else {
filename = strrchr(url, '/');
}
if(filename == NULL)
return NULL;
return filename + 1;
}
int
main(int argc, char **argv)
{
xbps_dictionary_t dict;
struct xbps_handle xh;
struct xferstat xfer;
const char *version, *rootdir = NULL, *conffile = NULL;
char *pkgname, *hash, *filename;
int flags = 0, c, rv = 0;
while ((c = getopt(argc, argv, "C:dr:V")) != -1) {
switch (c) {
case 'C':
conffile = optarg;
break;
case 'r':
/* To specify the root directory */
rootdir = optarg;
break;
case 'd':
flags |= XBPS_FLAG_DEBUG;
break;
case 'V':
printf("%s\n", XBPS_RELVER);
exit(EXIT_SUCCESS);
case '?':
default:
usage();
}
}
argc -= optind;
argv += optind;
if (argc < 1)
usage();
memset(&xh, 0, sizeof(xh));
if ((strcmp(argv[0], "version") == 0) ||
(strcmp(argv[0], "real-version") == 0) ||
(strcmp(argv[0], "xfetch") == 0) ||
(strcmp(argv[0], "fetch") == 0)) {
/*
* Initialize libxbps.
*/
xh.flags = flags;
xh.fetch_cb = fetch_file_progress_cb;
xh.fetch_cb_data = &xfer;
if (rootdir)
strncpy(xh.rootdir, rootdir, sizeof(xh.rootdir));
if (conffile)
strncpy(xh.conffile, conffile, sizeof(xh.conffile));
if ((rv = xbps_init(&xh)) != 0) {
xbps_error_printf("xbps-uhelper: failed to "
"initialize libxbps: %s.\n", strerror(rv));
exit(EXIT_FAILURE);
}
}
if (strcmp(argv[0], "version") == 0) {
/* Prints version of an installed package */
if (argc != 2)
usage();
if ((((dict = xbps_pkgdb_get_pkg(&xh, argv[1])) == NULL)) &&
(((dict = xbps_pkgdb_get_virtualpkg(&xh, argv[1])) == NULL)))
exit(EXIT_FAILURE);
xbps_dictionary_get_cstring_nocopy(dict, "pkgver", &version);
printf("%s\n", xbps_pkg_version(version));
} else if (strcmp(argv[0], "real-version") == 0) {
/* Prints version of an installed real package, not virtual */
if (argc != 2)
usage();
if ((dict = xbps_pkgdb_get_pkg(&xh, argv[1])) == NULL)
exit(EXIT_FAILURE);
xbps_dictionary_get_cstring_nocopy(dict, "pkgver", &version);
printf("%s\n", xbps_pkg_version(version));
} else if (strcmp(argv[0], "getpkgversion") == 0) {
/* Returns the version of a pkg string */
if (argc != 2)
usage();
version = xbps_pkg_version(argv[1]);
if (version == NULL) {
fprintf(stderr,
"Invalid string, expected <string>-<version>\n");
exit(EXIT_FAILURE);
}
printf("%s\n", version);
} else if (strcmp(argv[0], "getpkgname") == 0) {
/* Returns the name of a pkg string */
if (argc != 2)
usage();
pkgname = xbps_pkg_name(argv[1]);
if (pkgname == NULL) {
fprintf(stderr,
"Invalid string, expected <string>-<version>\n");
exit(EXIT_FAILURE);
}
printf("%s\n", pkgname);
free(pkgname);
} else if (strcmp(argv[0], "getpkgrevision") == 0) {
/* Returns the revision of a pkg string */
if (argc != 2)
usage();
version = xbps_pkg_revision(argv[1]);
if (version == NULL)
exit(EXIT_SUCCESS);
printf("%s\n", version);
} else if (strcmp(argv[0], "getpkgdepname") == 0) {
/* Returns the pkgname of a dependency */
if (argc != 2)
usage();
pkgname = xbps_pkgpattern_name(argv[1]);
if (pkgname == NULL)
exit(EXIT_FAILURE);
printf("%s\n", pkgname);
free(pkgname);
} else if (strcmp(argv[0], "getpkgdepversion") == 0) {
/* returns the version of a package pattern dependency */
if (argc != 2)
usage();
version = xbps_pkgpattern_version(argv[1]);
if (version == NULL)
exit(EXIT_FAILURE);
printf("%s\n", version);
} else if (strcmp(argv[0], "binpkgver") == 0) {
/* Returns the pkgver of a binpkg string */
if (argc != 2)
usage();
version = xbps_binpkg_pkgver(argv[1]);
if (version == NULL) {
fprintf(stderr,
"Invalid string, expected <pkgname>-<version>_<revision>.<arch>.xbps\n");
exit(EXIT_FAILURE);
}
printf("%s\n", version);
} else if (strcmp(argv[0], "binpkgarch") == 0) {
/* Returns the arch of a binpkg string */
if (argc != 2)
usage();
version = xbps_binpkg_arch(argv[1]);
if (version == NULL) {
fprintf(stderr,
"Invalid string, expected <pkgname>-<version>_<revision>.<arch>.xbps\n");
exit(EXIT_FAILURE);
}
printf("%s\n", version);
} else if (strcmp(argv[0], "pkgmatch") == 0) {
/* Matches a pkg with a pattern */
if (argc != 3)
usage();
exit(xbps_pkgpattern_match(argv[1], argv[2]));
} else if (strcmp(argv[0], "cmpver") == 0) {
/* Compare two version strings, installed vs required */
if (argc != 3)
usage();
exit(xbps_cmpver(argv[1], argv[2]));
} else if (strcmp(argv[0], "digest") == 0) {
/* Prints SHA256 hashes for specified files */
if (argc < 2)
usage();
for (int i = 1; i < argc; i++) {
hash = xbps_file_hash(argv[i]);
if (hash == NULL) {
fprintf(stderr,
"E: couldn't get hash for %s (%s)\n",
argv[i], strerror(errno));
exit(EXIT_FAILURE);
}
printf("%s\n", hash);
}
} else if (strcmp(argv[0], "xfetch") == 0) {
/* apply a delta from specified URL */
if (argc != 3)
usage();
filename = fname(argv[2]);
rv = xbps_fetch_delta(&xh, argv[1], argv[2], filename, "v");
if (rv == -1) {
printf("%s: %s\n", argv[2],
xbps_fetch_error_string());
} else if (rv == 0) {
printf("%s: file is identical than remote.\n",
argv[3]);
} else
rv = 0;
} else if (strcmp(argv[0], "fetch") == 0) {
/* Fetch a file from specified URL */
if (argc < 2)
usage();
for (int i = 1; i < argc; i++) {
filename = fname(argv[i]);
rv = xbps_fetch_file_dest(&xh, argv[i], filename, "v");
if (rv == -1) {
printf("%s: %s\n", argv[i],
xbps_fetch_error_string());
} else if (rv == 0) {
printf("%s: file is identical with remote.\n",
argv[i]);
} else
rv = 0;
}
} else {
usage();
}
exit(rv ? EXIT_FAILURE : EXIT_SUCCESS);
}