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pacman/lib/libalpm/add.c
Dan McGee 20f73d6299 Remove versioncmp.{c,h}, clean up selective #ifdefs 
Remove versioncmp.c by moving all functions to locations that make sense.

Move replacement functions (for building without glibc) into util.c where
they belong, and do proper checks for them instead of using __sun__, etc.

Signed-off-by: Dan McGee <dan@archlinux.org>
2007-07-12 15:20:43 -04:00

880 lines
30 KiB
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/*
* add.c
*
* Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org>
* Copyright (c) 2005 by Aurelien Foret <orelien@chez.com>
* Copyright (c) 2005 by Christian Hamar <krics@linuxforum.hu>
* Copyright (c) 2006 by David Kimpe <dnaku@frugalware.org>
* Copyright (c) 2005, 2006 by Miklos Vajna <vmiklos@frugalware.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
#include "config.h"
#include <stdlib.h>
#include <errno.h>
#include <time.h>
#include <fcntl.h>
#include <string.h>
#include <limits.h>
/* libarchive */
#include <archive.h>
#include <archive_entry.h>
/* libalpm */
#include "add.h"
#include "alpm_list.h"
#include "trans.h"
#include "util.h"
#include "error.h"
#include "cache.h"
#include "md5.h"
#include "sha1.h"
#include "log.h"
#include "backup.h"
#include "package.h"
#include "db.h"
#include "provide.h"
#include "conflict.h"
#include "deps.h"
#include "remove.h"
#include "handle.h"
int _alpm_add_loadtarget(pmtrans_t *trans, pmdb_t *db, char *name)
{
pmpkg_t *info = NULL;
pmpkg_t *dummy;
char pkgname[PKG_NAME_LEN], pkgver[PKG_VERSION_LEN];
alpm_list_t *i;
struct stat buf;
ALPM_LOG_FUNC;
ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
ASSERT(db != NULL, RET_ERR(PM_ERR_DB_NULL, -1));
ASSERT(name != NULL && strlen(name) != 0, RET_ERR(PM_ERR_WRONG_ARGS, -1));
_alpm_log(PM_LOG_DEBUG, "loading target '%s'", name);
/* TODO FS#5120 we need a better way to check if a package is a valid package,
* and read the metadata instead of relying on the filename for package name
* and version */
if(stat(name, &buf)) {
pm_errno = PM_ERR_NOT_A_FILE;
goto error;
}
if(_alpm_pkg_splitname(name, pkgname, pkgver, 1) == -1) {
pm_errno = PM_ERR_PKG_INVALID_NAME;
goto error;
}
/* no additional hyphens in version strings */
if(strchr(pkgver, '-') != strrchr(pkgver, '-')) {
pm_errno = PM_ERR_PKG_INVALID_NAME;
goto error;
}
if(trans->type != PM_TRANS_TYPE_UPGRADE) {
/* only install this package if it is not already installed */
if(_alpm_db_get_pkgfromcache(db, pkgname)) {
pm_errno = PM_ERR_PKG_INSTALLED;
goto error;
}
} else {
if(trans->flags & PM_TRANS_FLAG_FRESHEN) {
/* only upgrade/install this package if it is already installed and at a lesser version */
dummy = _alpm_db_get_pkgfromcache(db, pkgname);
if(dummy == NULL || _alpm_versioncmp(dummy->version, pkgver) >= 0) {
pm_errno = PM_ERR_PKG_CANT_FRESH;
goto error;
}
}
}
/* check if an older version of said package is already in transaction packages.
* if so, replace it in the list */
for(i = trans->packages; i; i = i->next) {
pmpkg_t *pkg = i->data;
if(strcmp(pkg->name, pkgname) == 0) {
if(_alpm_versioncmp(pkg->version, pkgver) < 0) {
pmpkg_t *newpkg;
_alpm_log(PM_LOG_WARNING, _("replacing older version %s-%s by %s in target list"),
pkg->name, pkg->version, pkgver);
if((newpkg = _alpm_pkg_load(name)) == NULL) {
/* pm_errno is already set by pkg_load() */
goto error;
}
_alpm_pkg_free(i->data);
i->data = newpkg;
} else {
_alpm_log(PM_LOG_WARNING, _("newer version %s-%s is in the target list -- skipping"),
pkg->name, pkg->version);
}
return(0);
}
}
_alpm_log(PM_LOG_DEBUG, "reading '%s' metadata", pkgname);
info = _alpm_pkg_load(name);
if(info == NULL) {
/* pm_errno is already set by pkg_load() */
goto error;
}
/* check to verify we're not getting fooled by a corrupted package */
if(strcmp(pkgname, info->name) != 0 || strcmp(pkgver, info->version) != 0) {
pm_errno = PM_ERR_PKG_INVALID;
goto error;
}
if(trans->flags & PM_TRANS_FLAG_ALLDEPS) {
info->reason = PM_PKG_REASON_DEPEND;
}
/* add the package to the transaction */
trans->packages = alpm_list_add(trans->packages, info);
return(0);
error:
_alpm_pkg_free(info);
return(-1);
}
/* This is still messy. We have a lot of compare functions, and we should
* try to consolidate them as much as we can (between add and sync) */
/*static int deppkg_cmp(const void *p1, const void *p2)
{
return(strcmp(((pmdepmissing_t *)p1)->target,
((pmdepmissing_t *)p2)->target));
}*/
int _alpm_add_prepare(pmtrans_t *trans, pmdb_t *db, alpm_list_t **data)
{
alpm_list_t *lp = NULL, *i = NULL;
ALPM_LOG_FUNC;
ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
ASSERT(db != NULL, RET_ERR(PM_ERR_DB_NULL, -1));
/* Check dependencies
*/
if(!(trans->flags & PM_TRANS_FLAG_NODEPS)) {
EVENT(trans, PM_TRANS_EVT_CHECKDEPS_START, NULL, NULL);
/* look for unsatisfied dependencies */
_alpm_log(PM_LOG_DEBUG, "looking for unsatisfied dependencies");
lp = _alpm_checkdeps(db, trans->type, trans->packages);
if(lp != NULL) {
if(data) {
*data = lp;
} else {
FREELIST(lp);
}
RET_ERR(PM_ERR_UNSATISFIED_DEPS, -1);
}
/* no unsatisfied deps, so look for conflicts */
_alpm_log(PM_LOG_DEBUG, "looking for conflicts");
lp = _alpm_checkconflicts(db, trans->packages);
for(i = lp; i; i = i->next) {
pmdepmissing_t *miss = i->data;
_alpm_log(PM_LOG_ERROR, _("replacing packages with -A and -U is not supported yet"));
_alpm_log(PM_LOG_ERROR, _("please remove '%s' first, using -Rd"), miss->depend.name);
RET_ERR(PM_ERR_CONFLICTING_DEPS, -1);
/* Attempt to resolve conflicts */
/*
int skip_this = 0;
QUESTION(trans, PM_TRANS_CONV_CONFLICT_PKG, miss->target, miss->depend.name, NULL, &skip_this);
if(skip_this) {
pmdepmissing_t *pkg = NULL;
lp = alpm_list_remove(lp, (void *)miss, deppkg_cmp, (void*)&pkg);
*/
/* TODO: We remove the conflict from the list but never actually remove
* the package. Need to do this to fix FS #3492. The sync code should
* provide an example of how to do this, as it handles replaces and
* removes. We run into problems because we do a file conflict check
* below and it fails there. A force flag will skip that part, but
* still not remove the original package designated here for removal.
* Better yet, dump all this shitty duplicate code and somehow combine
* it with the sync code. */
/*
FREE(pkg);
if(lp == NULL) {
break;
}
}
*/
}
/* Removal code should go here, as described above. Instead of simply
* removing items, perhaps throw them in another list to be removed, then
* proceed as sync.c would? I'm not sure because I'm not familiar enough
* with the codebase. */
if(lp != NULL) {
if(data) {
*data = lp;
} else {
FREELIST(lp);
}
RET_ERR(PM_ERR_CONFLICTING_DEPS, -1);
}
/* re-order w.r.t. dependencies */
_alpm_log(PM_LOG_DEBUG, "sorting by dependencies");
lp = _alpm_sortbydeps(trans->packages, PM_TRANS_TYPE_ADD);
/* free the old alltargs */
alpm_list_free(trans->packages);
trans->packages = lp;
EVENT(trans, PM_TRANS_EVT_CHECKDEPS_DONE, NULL, NULL);
}
/* Check for file conflicts */
if(!(trans->flags & PM_TRANS_FLAG_FORCE)) {
EVENT(trans, PM_TRANS_EVT_FILECONFLICTS_START, NULL, NULL);
_alpm_log(PM_LOG_DEBUG, "looking for file conflicts");
lp = _alpm_db_find_conflicts(db, trans, handle->root);
if(lp != NULL) {
if(data) {
*data = lp;
} else {
FREELIST(lp);
}
RET_ERR(PM_ERR_FILE_CONFLICTS, -1);
}
EVENT(trans, PM_TRANS_EVT_FILECONFLICTS_DONE, NULL, NULL);
}
return(0);
}
/* TODO clean up this monster 554 line function */
int _alpm_add_commit(pmtrans_t *trans, pmdb_t *db)
{
int i, ret = 0, errors = 0, pkg_count = 0;
struct archive *archive;
struct archive_entry *entry;
char cwd[PATH_MAX] = "";
alpm_list_t *targ;
const int archive_flags = ARCHIVE_EXTRACT_OWNER |
ARCHIVE_EXTRACT_PERM |
ARCHIVE_EXTRACT_TIME;
ALPM_LOG_FUNC;
ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
ASSERT(db != NULL, RET_ERR(PM_ERR_DB_NULL, -1));
if(trans->packages == NULL) {
return(0);
}
pkg_count = alpm_list_count(trans->targets);
for(targ = trans->packages; targ; targ = targ->next) {
char scriptlet[PATH_MAX+1];
int targ_count = 0, is_upgrade = 0, use_md5 = 0;
double percent = 0.0;
pmpkg_t *newpkg = (pmpkg_t *)targ->data;
pmpkg_t *oldpkg = NULL;
errors = 0;
if(handle->trans->state == STATE_INTERRUPTED) {
break;
}
snprintf(scriptlet, PATH_MAX, "%s%s-%s/install", db->path,
alpm_pkg_get_name(newpkg), alpm_pkg_get_version(newpkg));
/* check if we have a valid sha1sum, if not, use MD5 */
if(strlen(newpkg->sha1sum) == 0) {
use_md5 = 1;
}
/* see if this is an upgrade. if so, remove the old package first */
pmpkg_t *local = _alpm_db_get_pkgfromcache(db, newpkg->name);
if(local) {
is_upgrade = 1;
EVENT(trans, PM_TRANS_EVT_UPGRADE_START, newpkg, NULL);
_alpm_log(PM_LOG_DEBUG, "upgrading package %s-%s",
newpkg->name, newpkg->version);
/* we'll need to save some record for backup checks later */
oldpkg = _alpm_pkg_new(local->name, local->version);
if(oldpkg) {
oldpkg->backup = alpm_list_strdup(alpm_pkg_get_backup(local));
oldpkg->provides = alpm_list_strdup(alpm_pkg_get_provides(local));
strncpy(oldpkg->name, local->name, PKG_NAME_LEN);
strncpy(oldpkg->version, local->version, PKG_VERSION_LEN);
} else {
RET_ERR(PM_ERR_MEMORY, -1);
}
/* copy over the install reason */
newpkg->reason = alpm_pkg_get_reason(local);
/* pre_upgrade scriptlet */
if(alpm_pkg_has_scriptlet(newpkg) && !(trans->flags & PM_TRANS_FLAG_NOSCRIPTLET)) {
_alpm_runscriptlet(handle->root, newpkg->data, "pre_upgrade", newpkg->version, oldpkg->version, trans);
}
} else {
is_upgrade = 0;
EVENT(trans, PM_TRANS_EVT_ADD_START, newpkg, NULL);
_alpm_log(PM_LOG_DEBUG, "adding package %s-%s",
newpkg->name, newpkg->version);
/* pre_install scriptlet */
if(alpm_pkg_has_scriptlet(newpkg) && !(trans->flags & PM_TRANS_FLAG_NOSCRIPTLET)) {
_alpm_runscriptlet(handle->root, newpkg->data, "pre_install", newpkg->version, NULL, trans);
}
}
if(oldpkg) {
/* this is kinda odd. If the old package exists, at this point we make a
* NEW transaction, unrelated to handle->trans, and instantiate a "remove"
* with the type PM_TRANS_TYPE_UPGRADE. TODO: kill this weird behavior. */
pmtrans_t *tr = _alpm_trans_new();
_alpm_log(PM_LOG_DEBUG, "removing old package first (%s-%s)",
oldpkg->name, oldpkg->version);
if(!tr) {
RET_ERR(PM_ERR_TRANS_ABORT, -1);
}
if(_alpm_trans_init(tr, PM_TRANS_TYPE_UPGRADE, trans->flags, NULL, NULL, NULL) == -1) {
_alpm_trans_free(tr);
tr = NULL;
RET_ERR(PM_ERR_TRANS_ABORT, -1);
}
if(_alpm_remove_loadtarget(tr, db, newpkg->name) == -1) {
_alpm_trans_free(tr);
tr = NULL;
RET_ERR(PM_ERR_TRANS_ABORT, -1);
}
/* copy the remove skiplist over */
tr->skip_remove = alpm_list_strdup(trans->skip_remove);
const alpm_list_t *b;
/* Add files in the NEW package's backup array to the noupgrade array
* so this removal operation doesn't kill them */
/* TODO if we add here, all backup=() entries for all targets, new and
* old, we cover all bases, including backup=() locations changing hands.
* But is this viable? */
alpm_list_t *old_noupgrade = alpm_list_strdup(handle->noupgrade);
for(b = alpm_pkg_get_backup(newpkg); b; b = b->next) {
const char *backup = b->data;
_alpm_log(PM_LOG_DEBUG, "adding %s to the NoUpgrade array temporarily",
backup);
handle->noupgrade = alpm_list_add(handle->noupgrade, strdup(backup));
}
int ret = _alpm_remove_commit(tr, db);
_alpm_trans_free(tr);
tr = NULL;
/* restore our "NoUpgrade" list to previous state */
alpm_list_free_inner(handle->noupgrade, free);
alpm_list_free(handle->noupgrade);
handle->noupgrade = old_noupgrade;
if(ret == -1) {
RET_ERR(PM_ERR_TRANS_ABORT, -1);
}
}
if(!(trans->flags & PM_TRANS_FLAG_DBONLY)) {
_alpm_log(PM_LOG_DEBUG, "extracting files");
if ((archive = archive_read_new()) == NULL) {
RET_ERR(PM_ERR_LIBARCHIVE_ERROR, -1);
}
archive_read_support_compression_all(archive);
archive_read_support_format_all(archive);
if(archive_read_open_file(archive, newpkg->data, ARCHIVE_DEFAULT_BYTES_PER_BLOCK) != ARCHIVE_OK) {
RET_ERR(PM_ERR_PKG_OPEN, -1);
}
/* save the cwd so we can restore it later */
if(getcwd(cwd, PATH_MAX) == NULL) {
_alpm_log(PM_LOG_ERROR, _("could not get current working directory"));
cwd[0] = 0;
}
/* libarchive requires this for extracting hard links */
chdir(handle->root);
targ_count = alpm_list_count(targ);
/* call PROGRESS once with 0 percent, as we sort-of skip that here */
PROGRESS(trans, (is_upgrade ? PM_TRANS_PROGRESS_UPGRADE_START : PM_TRANS_PROGRESS_ADD_START),
newpkg->name, 0, pkg_count, (pkg_count - targ_count +1));
for(i = 0; archive_read_next_header(archive, &entry) == ARCHIVE_OK; i++) {
const char *entryname; /* the name of the file in the archive */
char filename[PATH_MAX]; /* the actual file we're extracting */
int needbackup = 0, notouch = 0;
char *hash_orig = NULL;
struct stat buf;
entryname = archive_entry_pathname(entry);
if(newpkg->size != 0) {
/* Using compressed size for calculations here, as newpkg->isize is not
* exact when it comes to comparing to the ACTUAL uncompressed size
* (missing metadata sizes) */
unsigned long pos = archive_position_compressed(archive);
percent = (double)pos / (double)newpkg->size;
_alpm_log(PM_LOG_DEBUG, "decompression progress: %f%% (%ld / %ld)",
percent*100.0, pos, newpkg->size);
if(percent >= 1.0) {
percent = 1.0;
}
}
PROGRESS(trans, (is_upgrade ? PM_TRANS_PROGRESS_UPGRADE_START : PM_TRANS_PROGRESS_ADD_START),
newpkg->name, (int)(percent * 100), pkg_count, (pkg_count - targ_count +1));
memset(filename, 0, PATH_MAX); /* just to be sure */
if(strcmp(entryname, ".PKGINFO") == 0
|| strcmp(entryname, ".FILELIST") == 0) {
archive_read_data_skip(archive);
continue;
} else if(strcmp(entryname, ".INSTALL") == 0) {
/* the install script goes inside the db */
snprintf(filename, PATH_MAX, "%s/%s-%s/install", db->path,
newpkg->name, newpkg->version);
} else if(strcmp(entryname, ".CHANGELOG") == 0) {
/* the changelog goes inside the db */
snprintf(filename, PATH_MAX, "%s/%s-%s/changelog", db->path,
newpkg->name, newpkg->version);
} else if(*entryname == '.') {
/* for now, ignore all files starting with '.' that haven't
* already been handled (for future possibilities) */
_alpm_log(PM_LOG_DEBUG, "skipping extraction of '%s'", entryname);
archive_read_data_skip(archive);
continue;
} else {
/* build the new entryname relative to handle->root */
snprintf(filename, PATH_MAX, "%s%s", handle->root, entryname);
}
/* if a file is in NoExtract then we never extract it */
if(alpm_list_find_str(handle->noextract, entryname)) {
_alpm_log(PM_LOG_DEBUG, "%s is in NoExtract, skipping extraction",
entryname);
alpm_logaction("note: %s is in NoExtract, skipping extraction", entryname);
archive_read_data_skip(archive);
continue;
}
/* if a file is in the add skiplist we never extract it */
if(alpm_list_find_str(trans->skip_add, filename)) {
_alpm_log(PM_LOG_DEBUG, "%s is in trans->skip_add, skipping extraction", entryname);
archive_read_data_skip(archive);
continue;
}
/* check is file already exists */
if(stat(filename, &buf) == 0 && !S_ISDIR(buf.st_mode)) {
/* it does, is it a backup=() file?
* always check the newpkg first, so when we do add a backup=() file,
* we don't have to wait a full upgrade cycle */
needbackup = alpm_list_find_str(alpm_pkg_get_backup(newpkg), entryname);
if(is_upgrade) {
hash_orig = _alpm_needbackup(entryname, alpm_pkg_get_backup(oldpkg));
if(hash_orig) {
needbackup = 1;
}
}
/* this is kind of gross. if we force hash_orig to be non-NULL we can
* catch the pro-active backup=() case (when the backup entry is in
* the new package, and not the old */
if(needbackup && !hash_orig) {
hash_orig = strdup("");
}
/* NoUpgrade skips all this backup stuff, because it's just never
* touched */
if(alpm_list_find_str(handle->noupgrade, entryname)) {
notouch = 1;
needbackup = 0;
}
}
if(needbackup) {
char *tempfile = NULL;
char *hash_local = NULL, *hash_pkg = NULL;
int fd;
/* extract the package's version to a temporary file and md5 it */
tempfile = strdup("/tmp/alpm_XXXXXX");
fd = mkstemp(tempfile);
archive_entry_set_pathname(entry, tempfile);
int ret = archive_read_extract(archive, entry, archive_flags);
if(ret == ARCHIVE_WARN) {
/* operation succeeded but a non-critical error was encountered */
_alpm_log(PM_LOG_DEBUG, "warning extracting %s (%s)",
entryname, archive_error_string(archive));
} else if(ret != ARCHIVE_OK) {
_alpm_log(PM_LOG_ERROR, "could not extract %s (%s)",
entryname, archive_error_string(archive));
alpm_logaction("error: could not extract %s (%s)",
entryname, archive_error_string(archive));
errors++;
unlink(tempfile);
FREE(hash_orig);
close(fd);
continue;
}
if(use_md5) {
hash_local = _alpm_MDFile(filename);
hash_pkg = _alpm_MDFile(tempfile);
} else {
hash_local = _alpm_SHAFile(filename);
hash_pkg = _alpm_SHAFile(tempfile);
}
/* append the new md5 or sha1 hash to it's respective entry
* in newpkg's backup (it will be the new orginal) */
alpm_list_t *backups;
for(backups = alpm_pkg_get_backup(newpkg); backups;
backups = alpm_list_next(backups)) {
char *oldbackup = alpm_list_getdata(backups);
if(!oldbackup || strcmp(oldbackup, entryname) != 0) {
continue;
}
char *backup = NULL;
int backup_len = strlen(oldbackup) + 2; /* tab char and null byte */
if(use_md5) {
backup_len += 32; /* MD5s are 32 chars in length */
} else {
backup_len += 40; /* SHA1s are 40 chars in length */
}
backup = malloc(backup_len);
if(!backup) {
RET_ERR(PM_ERR_MEMORY, -1);
}
sprintf(backup, "%s\t%s", oldbackup, hash_pkg);
backup[backup_len-1] = '\0';
FREE(oldbackup);
backups->data = backup;
}
if(use_md5) {
_alpm_log(PM_LOG_DEBUG, "checking md5 hashes for %s", entryname);
} else {
_alpm_log(PM_LOG_DEBUG, "checking sha1 hashes for %s", entryname);
}
_alpm_log(PM_LOG_DEBUG, "current: %s", hash_local);
_alpm_log(PM_LOG_DEBUG, "new: %s", hash_pkg);
_alpm_log(PM_LOG_DEBUG, "original: %s", hash_orig);
if(!is_upgrade) {
/* looks like we have a local file that has a different hash as the
* file in the package, move it to a .pacorig */
if(strcmp(hash_local, hash_pkg) != 0) {
char newpath[PATH_MAX];
snprintf(newpath, PATH_MAX, "%s.pacorig", filename);
/* move the existing file to the "pacorig" */
if(rename(filename, newpath)) {
archive_entry_set_pathname(entry, filename);
_alpm_log(PM_LOG_ERROR, _("could not rename %s (%s)"), filename, strerror(errno));
alpm_logaction("error: could not rename %s (%s)", filename, strerror(errno));
errors++;
} else {
/* copy the tempfile we extracted to the real path */
if(_alpm_copyfile(tempfile, filename)) {
archive_entry_set_pathname(entry, filename);
_alpm_log(PM_LOG_ERROR, _("could not copy tempfile to %s (%s)"), filename, strerror(errno));
alpm_logaction("error: could not copy tempfile to %s (%s)", filename, strerror(errno));
errors++;
} else {
archive_entry_set_pathname(entry, filename);
_alpm_log(PM_LOG_WARNING, _("%s saved as %s"), filename, newpath);
alpm_logaction("warning: %s saved as %s", filename, newpath);
}
}
}
} else if(hash_orig) {
/* the fun part */
if(strcmp(hash_orig, hash_local) == 0) {
/* installed file has NOT been changed by user */
if(strcmp(hash_orig, hash_pkg) != 0) {
_alpm_log(PM_LOG_DEBUG, "action: installing new file: %s",
entryname);
if(_alpm_copyfile(tempfile, filename)) {
_alpm_log(PM_LOG_ERROR, _("could not copy tempfile to %s (%s)"), filename, strerror(errno));
errors++;
}
archive_entry_set_pathname(entry, filename);
} else {
/* there's no sense in installing the same file twice, install
* ONLY is the original and package hashes differ */
_alpm_log(PM_LOG_DEBUG, "action: leaving existing file in place");
}
} else if(strcmp(hash_orig, hash_pkg) == 0) {
/* originally installed file and new file are the same - this
* implies the case above failed - i.e. the file was changed by a
* user */
_alpm_log(PM_LOG_DEBUG, "action: leaving existing file in place");
} else if(strcmp(hash_local, hash_pkg) == 0) {
/* this would be magical. The above two cases failed, but the
* user changes just so happened to make the new file exactly the
* same as the one in the package... skip it */
_alpm_log(PM_LOG_DEBUG, "action: leaving existing file in place");
} else {
char newpath[PATH_MAX];
_alpm_log(PM_LOG_DEBUG, "action: keeping current file and installing new one with .pacnew ending");
snprintf(newpath, PATH_MAX, "%s.pacnew", filename);
if(_alpm_copyfile(tempfile, newpath)) {
_alpm_log(PM_LOG_ERROR, _("could not install %s as %s: %s"), filename, newpath, strerror(errno));
alpm_logaction("error: could not install %s as %s: %s", filename, newpath, strerror(errno));
} else {
_alpm_log(PM_LOG_WARNING, _("%s installed as %s"), filename, newpath);
alpm_logaction("warning: %s installed as %s", filename, newpath);
}
}
}
FREE(hash_local);
FREE(hash_pkg);
FREE(hash_orig);
unlink(tempfile);
FREE(tempfile);
close(fd);
} else { /* ! needbackup */
if(notouch) {
_alpm_log(PM_LOG_DEBUG, "%s is in NoUpgrade -- skipping", filename);
_alpm_log(PM_LOG_WARNING, _("extracting %s as %s.pacnew"), filename, filename);
alpm_logaction("warning: extracting %s as %s.pacnew", filename, filename);
strncat(filename, ".pacnew", PATH_MAX);
} else {
_alpm_log(PM_LOG_DEBUG, "extracting %s", filename);
}
if(trans->flags & PM_TRANS_FLAG_FORCE) {
/* if FORCE was used, then unlink() each file (whether it's there
* or not) before extracting. this prevents the old "Text file busy"
* error that crops up if one tries to --force a glibc or pacman
* upgrade.
*/
unlink(filename);
}
archive_entry_set_pathname(entry, filename);
/* FS #7484
* By default, libarchive 2.2.3 overwrites existing symlinks by directories from the archive,
* which isn't the behavior we want.
* This can be avoided by using the ARCHIVE_EXTRACT_NO_OVERWRITE flag, and this works
* fine because all files where an overwrite could be needed are deleted first :
* 1) if it's an upgrade, existing files are removed when the old pkg is removed
* 2) if there is a file conflict, but --force is used, then files are also removed : see above
*/
int ret = archive_read_extract(archive, entry, archive_flags | ARCHIVE_EXTRACT_NO_OVERWRITE);
if(ret == ARCHIVE_WARN) {
/* operation succeeded but a non-critical error was encountered */
_alpm_log(PM_LOG_DEBUG, "warning extracting %s (%s)",
entryname, archive_error_string(archive));
} else if(ret != ARCHIVE_OK) {
_alpm_log(PM_LOG_ERROR, _("could not extract %s (%s)"),
entryname, archive_error_string(archive));
alpm_logaction("error: could not extract %s (%s)",
entryname, archive_error_string(archive));
errors++;
continue;
}
/* calculate an hash if this is in newpkg's backup */
alpm_list_t *b;
for(b = alpm_pkg_get_backup(newpkg); b; b = b->next) {
char *backup = NULL, *hash = NULL;
char *oldbackup = alpm_list_getdata(b);
int backup_len = strlen(oldbackup) + 2; /* tab char and null byte */
if(!oldbackup || strcmp(oldbackup, entryname) != 0) {
continue;
}
_alpm_log(PM_LOG_DEBUG, "appending backup entry for %s", filename);
if(use_md5) {
backup_len += 32; /* MD5s are 32 chars in length */
hash = _alpm_MDFile(filename);
} else {
backup_len += 40; /* SHA1s are 40 chars in length */
hash = _alpm_SHAFile(filename);
}
backup = malloc(backup_len);
if(!backup) {
RET_ERR(PM_ERR_MEMORY, -1);
}
sprintf(backup, "%s\t%s", oldbackup, hash);
backup[backup_len-1] = '\0';
FREE(hash);
FREE(oldbackup);
b->data = backup;
}
}
}
archive_read_finish(archive);
/* restore the old cwd is we have it */
if(strlen(cwd)) {
chdir(cwd);
}
if(errors) {
ret = 1;
if(is_upgrade) {
_alpm_log(PM_LOG_ERROR, _("problem occurred while upgrading %s"),
newpkg->name);
alpm_logaction("error: problem occurred while upgrading %s",
newpkg->name);
} else {
_alpm_log(PM_LOG_ERROR, _("problem occurred while installing %s"),
newpkg->name);
alpm_logaction("error: problem occurred while installing %s",
newpkg->name);
}
}
}
/* Update the requiredby field by scanning the whole database
* looking for packages depending on the package to add */
_alpm_pkg_update_requiredby(newpkg);
/* special case: if our provides list has changed from oldpkg to newpkg AND
* we get here, we need to make sure we find the actual provision that
* still satisfies this case, and update its 'requiredby' field... ugh */
alpm_list_t *provdiff, *prov;
provdiff = alpm_list_diff(alpm_pkg_get_provides(oldpkg),
alpm_pkg_get_provides(newpkg),
_alpm_str_cmp);
for(prov = provdiff; prov; prov = prov->next) {
const char *provname = prov->data;
_alpm_log(PM_LOG_DEBUG, "provision '%s' has been removed from package %s (%s => %s)",
provname, alpm_pkg_get_name(oldpkg),
alpm_pkg_get_version(oldpkg), alpm_pkg_get_version(newpkg));
alpm_list_t *p = _alpm_db_whatprovides(handle->db_local, provname);
if(p) {
/* we now have all the provisions in the local DB for this virtual
* package... seeing as we can't really determine which is the 'correct'
* provision, we'll use the FIRST for now.
* TODO figure out a way to find a "correct" provision */
pmpkg_t *provpkg = p->data;
const char *pkgname = alpm_pkg_get_name(provpkg);
_alpm_log(PM_LOG_DEBUG, "updating '%s' due to provision change (%s)",
pkgname, provname);
_alpm_pkg_update_requiredby(provpkg);
if(_alpm_db_write(db, provpkg, INFRQ_DEPENDS)) {
_alpm_log(PM_LOG_ERROR, _("could not update provision '%s' from '%s'"),
provname, pkgname);
alpm_logaction("error: could not update provision '%s' from '%s'",
provname, pkgname);
RET_ERR(PM_ERR_DB_WRITE, -1);
}
}
}
alpm_list_free(provdiff);
/* make an install date (in UTC) */
time_t t = time(NULL);
strncpy(newpkg->installdate, asctime(gmtime(&t)), PKG_DATE_LEN);
/* remove the extra line feed appended by asctime() */
newpkg->installdate[strlen(newpkg->installdate)-1] = 0;
_alpm_log(PM_LOG_DEBUG, "updating database");
_alpm_log(PM_LOG_DEBUG, "adding database entry '%s'", newpkg->name);
if(_alpm_db_write(db, newpkg, INFRQ_ALL)) {
_alpm_log(PM_LOG_ERROR, _("could not update database entry %s-%s"),
alpm_pkg_get_name(newpkg), alpm_pkg_get_version(newpkg));
alpm_logaction("error: could not update database entry %s-%s",
alpm_pkg_get_name(newpkg), alpm_pkg_get_version(newpkg));
RET_ERR(PM_ERR_DB_WRITE, -1);
}
if(_alpm_db_add_pkgincache(db, newpkg) == -1) {
_alpm_log(PM_LOG_ERROR, _("could not add entry '%s' in cache"),
alpm_pkg_get_name(newpkg));
}
/* update dependency packages' REQUIREDBY fields */
_alpm_trans_update_depends(trans, newpkg);
PROGRESS(trans, (is_upgrade ? PM_TRANS_PROGRESS_UPGRADE_START : PM_TRANS_PROGRESS_ADD_START),
alpm_pkg_get_name(newpkg), 100, pkg_count, (pkg_count - targ_count +1));
EVENT(trans, PM_TRANS_EVT_EXTRACT_DONE, NULL, NULL);
/* run the post-install script if it exists */
if(alpm_pkg_has_scriptlet(newpkg) && !(trans->flags & PM_TRANS_FLAG_NOSCRIPTLET)) {
if(is_upgrade) {
_alpm_runscriptlet(handle->root, scriptlet, "post_upgrade",
alpm_pkg_get_version(newpkg), oldpkg ? alpm_pkg_get_version(oldpkg) : NULL,
trans);
} else {
_alpm_runscriptlet(handle->root, scriptlet, "post_install",
alpm_pkg_get_version(newpkg), NULL, trans);
}
}
EVENT(trans, (is_upgrade) ? PM_TRANS_EVT_UPGRADE_DONE : PM_TRANS_EVT_ADD_DONE, newpkg, oldpkg);
_alpm_pkg_free(oldpkg);
}
/* run ldconfig if it exists */
if(handle->trans->state != STATE_INTERRUPTED) {
_alpm_log(PM_LOG_DEBUG, "running \"ldconfig -r %s\"", handle->root);
_alpm_ldconfig(handle->root);
}
return(0);
}
/* vim: set ts=2 sw=2 noet: */
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