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autoremove.c
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autoremove.c
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/*-
* Copyright (c) 2011-2012 Baptiste Daroussin <[email protected]>
* Copyright (c) 2011-2012 Marin Atanasov Nikolov <[email protected]>
* Copyright (c) 2013-2014 Matthew Seaman <[email protected]>
* Copyright (c) 2016 Vsevolod Stakhov <[email protected]>
* 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
* in this position and unchanged.
* 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(S) ``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(S) 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 <err.h>
#include <getopt.h>
#include <stdio.h>
#include <sysexits.h>
#include <unistd.h>
#include <pkg.h>
#include "pkgcli.h"
void
usage_autoremove(void)
{
fprintf(stderr, "Usage: pkg autoremove [-ynq]\n\n");
fprintf(stderr, "For more information see 'pkg help autoremove'.\n");
}
int
exec_autoremove(int argc, char **argv)
{
struct pkgdb *db = NULL;
struct pkg_jobs *jobs = NULL;
int retcode = EX_OK;
int ch;
nbactions = nbdone = 0;
pkg_flags f = PKG_FLAG_FORCE;
bool rc = false;
int lock_type = PKGDB_LOCK_ADVISORY;
struct option longopts[] = {
{ "dry-run", no_argument, NULL, 'n' },
{ "quiet", no_argument, NULL, 'q' },
{ "yes", no_argument, NULL, 'y' },
{ NULL, 0, NULL, 0 },
};
while ((ch = getopt_long(argc, argv, "+nqy", longopts, NULL)) != -1) {
switch (ch) {
case 'n':
f |= PKG_FLAG_DRY_RUN;
dry_run = true;
lock_type = PKGDB_LOCK_READONLY;
break;
case 'q':
quiet = true;
break;
case 'y':
yes = true;
break;
default:
break;
}
}
argc -= optind;
if (argc != 0) {
usage_autoremove();
return (EX_USAGE);
}
if (dry_run)
retcode = pkgdb_access(PKGDB_MODE_READ, PKGDB_DB_LOCAL);
else
retcode = pkgdb_access(PKGDB_MODE_READ|PKGDB_MODE_WRITE,
PKGDB_DB_LOCAL);
if (retcode == EPKG_ENOACCESS) {
warnx("Insufficient privileges to autoremove packages");
return (EX_NOPERM);
} else if (retcode == EPKG_ENODB) {
warnx("No packages installed. Nothing to do!");
return (EX_OK);
} else if (retcode != EPKG_OK) {
warnx("Error accessing the package database");
return (EX_SOFTWARE);
}
if (pkgdb_open(&db, PKGDB_DEFAULT) != EPKG_OK) {
return (EX_IOERR);
}
if (pkgdb_obtain_lock(db, lock_type) != EPKG_OK) {
pkgdb_close(db);
warnx("Cannot get an advisory lock on a database, it is locked by another process");
return (EX_TEMPFAIL);
}
/* Always force packages to be removed */
if (pkg_jobs_new(&jobs, PKG_JOBS_AUTOREMOVE, db) != EPKG_OK) {
pkgdb_close(db);
return (EX_IOERR);
}
pkg_jobs_set_flags(jobs, f);
if ((retcode = pkg_jobs_solve(jobs)) != EPKG_OK) {
retcode = EX_SOFTWARE;
goto cleanup;
}
if ((nbactions = pkg_jobs_count(jobs)) == 0) {
printf("Nothing to do.\n");
goto cleanup;
}
if (!quiet || dry_run) {
print_jobs_summary(jobs,
"Deinstallation has been requested for the following %d packages:\n\n", nbactions);
if (!dry_run)
rc = query_yesno(false,
"\nProceed with deinstalling packages? ");
}
if ((yes || rc ) && !dry_run && ((retcode = pkg_jobs_apply(jobs)) != EPKG_OK)) {
goto cleanup;
}
if (!yes && !rc)
retcode = EXIT_FAILURE;
pkgdb_compact(db);
cleanup:
pkg_jobs_free(jobs);
pkgdb_release_lock(db, lock_type);
pkgdb_close(db);
return (retcode);
}