xbps/bin/xbps-remove/main.c
2020-04-24 11:44:19 +02:00

290 lines
7.0 KiB
C

/*-
* Licensed under the SPDX BSD-2-Clause identifier.
* Use is subject to license terms, as specified in the LICENSE file.
*/
#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <errno.h>
#include <signal.h>
#include <assert.h>
#include <unistd.h>
#include <getopt.h>
#include <syslog.h>
#include <xbps.h>
#include "../xbps-install/defs.h"
#include "defs.h"
static void __attribute__((noreturn))
usage(bool fail)
{
fprintf(stdout,
"Usage: xbps-remove [OPTIONS] [PKGNAME...]\n\n"
"OPTIONS\n"
" -C, --config <dir> Path to confdir (xbps.d)\n"
" -c, --cachedir <dir> Path to cachedir\n"
" -d, --debug Debug mode shown to stderr\n"
" -F, --force-revdeps Force package removal even with revdeps or\n"
" unresolved shared libraries\n"
" -f, --force Force package files removal\n"
" -h, --help Show usage\n"
" -n, --dry-run Dry-run mode\n"
" -O, --clean-cache Remove obsolete packages in cachedir\n"
" -o, --remove-orphans Remove package orphans\n"
" -R, --recursive Recursively remove dependencies\n"
" -r, --rootdir <dir> Full path to rootdir\n"
" -v, --verbose Verbose messages\n"
" -y, --yes Assume yes to all questions\n"
" -V, --version Show XBPS version\n");
exit(fail ? EXIT_FAILURE : EXIT_SUCCESS);
}
static int
state_cb_rm(const struct xbps_state_cb_data *xscd, void *cbdata UNUSED)
{
bool slog = false;
if ((xscd->xhp->flags & XBPS_FLAG_DISABLE_SYSLOG) == 0) {
slog = true;
openlog("xbps-remove", 0, LOG_USER);
}
switch (xscd->state) {
/* notifications */
case XBPS_STATE_REMOVE:
printf("Removing `%s' ...\n", xscd->arg);
break;
/* success */
case XBPS_STATE_REMOVE_FILE:
case XBPS_STATE_REMOVE_FILE_OBSOLETE:
if (xscd->xhp->flags & XBPS_FLAG_VERBOSE)
printf("%s\n", xscd->desc);
break;
case XBPS_STATE_REMOVE_DONE:
printf("Removed `%s' successfully.\n", xscd->arg);
if (slog) {
syslog(LOG_NOTICE, "Removed `%s' successfully "
"(rootdir: %s).", xscd->arg,
xscd->xhp->rootdir);
}
break;
case XBPS_STATE_SHOW_REMOVE_MSG:
printf("%s: pre-remove message:\n", xscd->arg);
printf("========================================================================\n");
printf("%s", xscd->desc);
printf("========================================================================\n");
break;
/* errors */
case XBPS_STATE_REMOVE_FAIL:
xbps_error_printf("%s\n", xscd->desc);
if (slog) {
syslog(LOG_ERR, "%s", xscd->desc);
}
break;
case XBPS_STATE_REMOVE_FILE_FAIL:
case XBPS_STATE_REMOVE_FILE_HASH_FAIL:
case XBPS_STATE_REMOVE_FILE_OBSOLETE_FAIL:
/* Ignore errors due to not empty directories or directories being a mount point */
if (xscd->err == ENOTEMPTY || xscd->err == EBUSY)
return 0;
xbps_error_printf("%s\n", xscd->desc);
if (slog) {
syslog(LOG_ERR, "%s", xscd->desc);
}
break;
case XBPS_STATE_ALTGROUP_ADDED:
case XBPS_STATE_ALTGROUP_REMOVED:
case XBPS_STATE_ALTGROUP_SWITCHED:
case XBPS_STATE_ALTGROUP_LINK_ADDED:
case XBPS_STATE_ALTGROUP_LINK_REMOVED:
if (xscd->desc) {
printf("%s\n", xscd->desc);
if (slog)
syslog(LOG_NOTICE, "%s", xscd->desc);
}
break;
default:
break;
}
return 0;
}
static int
remove_pkg(struct xbps_handle *xhp, const char *pkgname, bool recursive)
{
int rv;
rv = xbps_transaction_remove_pkg(xhp, pkgname, recursive);
if (rv == EEXIST) {
return rv;
} else if (rv == ENOENT) {
printf("Package `%s' is not currently installed.\n", pkgname);
return rv;
} else if (rv != 0) {
xbps_error_printf("Failed to queue `%s' for removing: %s\n",
pkgname, strerror(rv));
return rv;
}
return 0;
}
int
main(int argc, char **argv)
{
const char *shortopts = "C:c:dFfhnOoRr:vVy";
const struct option longopts[] = {
{ "config", required_argument, NULL, 'C' },
{ "cachedir", required_argument, NULL, 'c' },
{ "debug", no_argument, NULL, 'd' },
{ "force-revdeps", no_argument, NULL, 'F' },
{ "force", no_argument, NULL, 'f' },
{ "help", no_argument, NULL, 'h' },
{ "dry-run", no_argument, NULL, 'n' },
{ "clean-cache", no_argument, NULL, 'O' },
{ "remove-orphans", no_argument, NULL, 'o' },
{ "recursive", no_argument, NULL, 'R' },
{ "rootdir", required_argument, NULL, 'r' },
{ "verbose", no_argument, NULL, 'v' },
{ "version", no_argument, NULL, 'V' },
{ "yes", no_argument, NULL, 'y' },
{ NULL, 0, NULL, 0 }
};
struct xbps_handle xh;
const char *rootdir, *cachedir, *confdir;
int c, flags, rv;
bool yes, drun, recursive, clean_cache, orphans;
int maxcols, missing;
rootdir = cachedir = confdir = NULL;
flags = rv = 0;
drun = recursive = clean_cache = yes = orphans = false;
while ((c = getopt_long(argc, argv, shortopts, longopts, NULL)) != -1) {
switch (c) {
case 'C':
confdir = optarg;
break;
case 'c':
cachedir = optarg;
break;
case 'd':
flags |= XBPS_FLAG_DEBUG;
break;
case 'F':
flags |= XBPS_FLAG_FORCE_REMOVE_REVDEPS;
break;
case 'f':
flags |= XBPS_FLAG_FORCE_REMOVE_FILES;
break;
case 'h':
usage(false);
/* NOTREACHED */
case 'n':
drun = true;
break;
case 'O':
clean_cache = true;
break;
case 'o':
orphans = true;
break;
case 'R':
recursive = true;
break;
case 'r':
rootdir = optarg;
break;
case 'v':
flags |= XBPS_FLAG_VERBOSE;
break;
case 'V':
printf("%s\n", XBPS_RELVER);
exit(EXIT_SUCCESS);
case 'y':
yes = true;
break;
case '?':
default:
usage(true);
/* NOTREACHED */
}
}
if (!clean_cache && !orphans && (argc == optind)) {
usage(true);
/* NOTREACHED */
}
/*
* Initialize libxbps.
*/
memset(&xh, 0, sizeof(xh));
xh.state_cb = state_cb_rm;
if (rootdir)
xbps_strlcpy(xh.rootdir, rootdir, sizeof(xh.rootdir));
if (cachedir)
xbps_strlcpy(xh.cachedir, cachedir, sizeof(xh.cachedir));
if (confdir)
xbps_strlcpy(xh.confdir, confdir, sizeof(xh.confdir));
xh.flags = flags;
if ((rv = xbps_init(&xh)) != 0) {
xbps_error_printf("Failed to initialize libxbps: %s\n",
strerror(rv));
exit(EXIT_FAILURE);
}
maxcols = get_maxcols();
if (clean_cache) {
rv = clean_cachedir(&xh, drun);
if (!orphans || rv)
exit(rv);;
}
if (!drun && (rv = xbps_pkgdb_lock(&xh)) != 0) {
fprintf(stderr, "failed to lock pkgdb: %s\n", strerror(rv));
exit(rv);
}
if (orphans) {
if ((rv = xbps_transaction_autoremove_pkgs(&xh)) != 0) {
xbps_end(&xh);
if (rv != ENOENT) {
fprintf(stderr, "Failed to queue package "
"orphans: %s\n", strerror(rv));
exit(EXIT_FAILURE);
}
exit(EXIT_SUCCESS);
}
}
missing = optind;
for (int i = optind; i < argc; i++) {
rv = remove_pkg(&xh, argv[i], recursive);
if (rv == ENOENT) {
missing++;
continue;
} else if (rv != 0) {
xbps_end(&xh);
exit(rv);
}
}
if (!orphans && missing == argc) {
goto out;
}
if (orphans || (argc > optind)) {
rv = exec_transaction(&xh, maxcols, yes, drun);
}
out:
xbps_end(&xh);
exit(rv);
}