diff options
Diffstat (limited to '')
| -rw-r--r-- | src/main/remove.c | 686 |
1 files changed, 686 insertions, 0 deletions
diff --git a/src/main/remove.c b/src/main/remove.c new file mode 100644 index 0000000..88c01a2 --- /dev/null +++ b/src/main/remove.c @@ -0,0 +1,686 @@ +/* + * dpkg - main program for package management + * remove.c - functionality for removing packages + * + * Copyright © 1995 Ian Jackson <ijackson@chiark.greenend.org.uk> + * Copyright © 2007-2015 Guillem Jover <guillem@debian.org> + * + * This 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 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, see <https://www.gnu.org/licenses/>. + */ + +#include <config.h> +#include <compat.h> + +#include <sys/types.h> +#include <sys/stat.h> + +#include <errno.h> +#include <string.h> +#include <fcntl.h> +#include <dirent.h> +#include <unistd.h> +#include <stdlib.h> +#include <stdio.h> + +#include <dpkg/i18n.h> +#include <dpkg/c-ctype.h> +#include <dpkg/dpkg.h> +#include <dpkg/dpkg-db.h> +#include <dpkg/pkg.h> +#include <dpkg/path.h> +#include <dpkg/dir.h> +#include <dpkg/options.h> +#include <dpkg/triglib.h> +#include <dpkg/db-ctrl.h> +#include <dpkg/db-fsys.h> + +#include "main.h" + +/* + * pkgdepcheck may be a virtual pkg. + */ +static void checkforremoval(struct pkginfo *pkgtoremove, + struct pkgset *pkgdepcheck, + enum dep_check *rokp, struct varbuf *raemsgs) +{ + struct deppossi *possi; + struct pkginfo *depender; + enum dep_check ok; + struct varbuf_state raemsgs_state; + + for (possi = pkgdepcheck->depended.installed; possi; possi = possi->rev_next) { + if (possi->up->type != dep_depends && possi->up->type != dep_predepends) continue; + depender= possi->up->up; + debug(dbg_depcon, "checking depending package '%s'", + pkg_name(depender, pnaw_always)); + if (depender->status < PKG_STAT_UNPACKED) + continue; + if (ignore_depends(depender)) { + debug(dbg_depcon, "ignoring depending package '%s'", + pkg_name(depender, pnaw_always)); + continue; + } + if (dependtry >= DEPEND_TRY_CYCLES) { + if (findbreakcycle(pkgtoremove)) + sincenothing = 0; + } + varbuf_snapshot(raemsgs, &raemsgs_state); + ok= dependencies_ok(depender,pkgtoremove,raemsgs); + if (ok == DEP_CHECK_HALT && + depender->clientdata && + depender->clientdata->istobe == PKG_ISTOBE_REMOVE) + ok = DEP_CHECK_DEFER; + if (ok == DEP_CHECK_DEFER) + /* Don't burble about reasons for deferral. */ + varbuf_rollback(&raemsgs_state); + if (ok < *rokp) *rokp= ok; + } +} + +void deferred_remove(struct pkginfo *pkg) { + struct varbuf raemsgs = VARBUF_INIT; + struct dependency *dep; + enum dep_check rok; + + debug(dbg_general, "deferred_remove package %s", + pkg_name(pkg, pnaw_always)); + + if (!f_pending && pkg->want != PKG_WANT_UNKNOWN) { + if (cipaction->arg_int == act_purge) + pkg_set_want(pkg, PKG_WANT_PURGE); + else + pkg_set_want(pkg, PKG_WANT_DEINSTALL); + + if (!f_noact) + modstatdb_note(pkg); + } + + ensure_package_clientdata(pkg); + + if (pkg->status == PKG_STAT_NOTINSTALLED) { + sincenothing = 0; + warning(_("ignoring request to remove %.250s which isn't installed"), + pkg_name(pkg, pnaw_nonambig)); + pkg->clientdata->istobe = PKG_ISTOBE_NORMAL; + return; + } else if (!f_pending && + pkg->status == PKG_STAT_CONFIGFILES && + cipaction->arg_int != act_purge) { + sincenothing = 0; + warning(_("ignoring request to remove %.250s, only the config\n" + " files of which are on the system; use --purge to remove them too"), + pkg_name(pkg, pnaw_nonambig)); + pkg->clientdata->istobe = PKG_ISTOBE_NORMAL; + return; + } + + if (pkg->status != PKG_STAT_CONFIGFILES) { + if (pkg->installed.essential) + forcibleerr(FORCE_REMOVE_ESSENTIAL, + _("this is an essential package; it should not be removed")); + if (pkg->installed.is_protected) + forcibleerr(FORCE_REMOVE_PROTECTED, + _("this is a protected package; it should not be removed")); + } + + debug(dbg_general, "checking dependencies for remove '%s'", + pkg_name(pkg, pnaw_always)); + rok = DEP_CHECK_OK; + checkforremoval(pkg, pkg->set, &rok, &raemsgs); + for (dep= pkg->installed.depends; dep; dep= dep->next) { + if (dep->type != dep_provides) continue; + debug(dbg_depcon, "checking virtual package '%s'", dep->list->ed->name); + checkforremoval(pkg, dep->list->ed, &rok, &raemsgs); + } + + if (rok == DEP_CHECK_DEFER) { + varbuf_destroy(&raemsgs); + pkg->clientdata->istobe = PKG_ISTOBE_REMOVE; + enqueue_package(pkg); + return; + } else if (rok == DEP_CHECK_HALT) { + sincenothing= 0; + varbuf_end_str(&raemsgs); + notice(_("dependency problems prevent removal of %s:\n%s"), + pkg_name(pkg, pnaw_nonambig), raemsgs.buf); + ohshit(_("dependency problems - not removing")); + } else if (raemsgs.used) { + varbuf_end_str(&raemsgs); + notice(_("%s: dependency problems, but removing anyway as you requested:\n%s"), + pkg_name(pkg, pnaw_nonambig), raemsgs.buf); + } + varbuf_destroy(&raemsgs); + sincenothing= 0; + + if (pkg->eflag & PKG_EFLAG_REINSTREQ) + forcibleerr(FORCE_REMOVE_REINSTREQ, + _("package is in a very bad inconsistent state; you should\n" + " reinstall it before attempting a removal")); + + ensure_allinstfiles_available(); + fsys_hash_init(); + + if (f_noact) { + printf(_("Would remove or purge %s (%s) ...\n"), + pkg_name(pkg, pnaw_nonambig), + versiondescribe(&pkg->installed.version, vdew_nonambig)); + pkg_set_status(pkg, PKG_STAT_NOTINSTALLED); + pkg->clientdata->istobe = PKG_ISTOBE_NORMAL; + return; + } + + pkg_conffiles_mark_old(pkg); + + /* Only print and log removal action once. This avoids duplication when + * using --remove and --purge in sequence. */ + if (pkg->status > PKG_STAT_CONFIGFILES) { + printf(_("Removing %s (%s) ...\n"), pkg_name(pkg, pnaw_nonambig), + versiondescribe(&pkg->installed.version, vdew_nonambig)); + log_action("remove", pkg, &pkg->installed); + } + + trig_activate_packageprocessing(pkg); + if (pkg->status >= PKG_STAT_HALFCONFIGURED) { + static enum pkgstatus oldpkgstatus; + + oldpkgstatus= pkg->status; + pkg_set_status(pkg, PKG_STAT_HALFCONFIGURED); + modstatdb_note(pkg); + push_cleanup(cu_prermremove, ~ehflag_normaltidy, 2, + (void *)pkg, (void *)&oldpkgstatus); + maintscript_installed(pkg, PRERMFILE, "pre-removal", "remove", NULL); + + /* Will turn into ‘half-installed’ soon ... */ + pkg_set_status(pkg, PKG_STAT_UNPACKED); + } + + removal_bulk(pkg); +} + +static void +push_leftover(struct fsys_namenode_list **leftoverp, + struct fsys_namenode *namenode) +{ + struct fsys_namenode_list *newentry; + + newentry = nfmalloc(sizeof(*newentry)); + newentry->next= *leftoverp; + newentry->namenode= namenode; + *leftoverp= newentry; +} + +static void +removal_bulk_remove_file(const char *filename, const char *filetype) +{ + /* We need the postrm and list files for --purge. */ + if (strcmp(filetype, LISTFILE) == 0 || + strcmp(filetype, POSTRMFILE) == 0) + return; + + debug(dbg_stupidlyverbose, "removal_bulk info not postrm or list"); + + if (unlink(filename)) + ohshite(_("unable to delete control info file '%.250s'"), filename); + + debug(dbg_scripts, "removal_bulk info unlinked %s", filename); +} + +static bool +removal_bulk_file_is_shared(struct pkginfo *pkg, struct fsys_namenode *namenode) +{ + struct fsys_node_pkgs_iter *iter; + struct pkginfo *otherpkg; + bool shared = false; + + if (pkgset_installed_instances(pkg->set) <= 1) + return false; + + iter = fsys_node_pkgs_iter_new(namenode); + while ((otherpkg = fsys_node_pkgs_iter_next(iter))) { + if (otherpkg == pkg) + continue; + if (otherpkg->set != pkg->set) + continue; + + debug(dbg_eachfiledetail, "removal_bulk file shared with %s, skipping", + pkg_name(otherpkg, pnaw_always)); + shared = true; + break; + } + fsys_node_pkgs_iter_free(iter); + + return shared; +} + +static void +removal_bulk_remove_files(struct pkginfo *pkg) +{ + struct fsys_hash_rev_iter rev_iter; + struct fsys_namenode_list *leftover; + struct fsys_namenode *namenode; + static struct varbuf fnvb; + struct varbuf_state fnvb_state; + struct stat stab; + + pkg_set_status(pkg, PKG_STAT_HALFINSTALLED); + modstatdb_note(pkg); + push_checkpoint(~ehflag_bombout, ehflag_normaltidy); + + fsys_hash_rev_iter_init(&rev_iter, pkg->files); + leftover = NULL; + while ((namenode = fsys_hash_rev_iter_next(&rev_iter))) { + struct fsys_namenode *usenode; + bool is_dir; + + debug(dbg_eachfile, "removal_bulk '%s' flags=%o", + namenode->name, namenode->flags); + + usenode = namenodetouse(namenode, pkg, &pkg->installed); + + varbuf_set_str(&fnvb, dpkg_fsys_get_dir()); + varbuf_add_str(&fnvb, usenode->name); + varbuf_end_str(&fnvb); + varbuf_snapshot(&fnvb, &fnvb_state); + + is_dir = stat(fnvb.buf, &stab) == 0 && S_ISDIR(stab.st_mode); + + /* A pkgset can share files between its instances that we + * don't want to remove, we just want to forget them. This + * applies to shared conffiles too. */ + if (!is_dir && removal_bulk_file_is_shared(pkg, namenode)) + continue; + + /* Non-shared conffiles are kept. */ + if (namenode->flags & FNNF_OLD_CONFF) { + push_leftover(&leftover, namenode); + continue; + } + + if (is_dir) { + debug(dbg_eachfiledetail, "removal_bulk is a directory"); + /* Only delete a directory or a link to one if we're the only + * package which uses it. Other files should only be listed + * in this package (but we don't check). */ + if (dir_has_conffiles(namenode, pkg)) { + push_leftover(&leftover,namenode); + continue; + } + if (dir_is_used_by_pkg(namenode, pkg, leftover)) { + push_leftover(&leftover, namenode); + continue; + } + if (dir_is_used_by_others(namenode, pkg)) + continue; + + if (strcmp(usenode->name, "/.") == 0) { + debug(dbg_eachfiledetail, + "removal_bulk '%s' root directory, cannot remove", fnvb.buf); + push_leftover(&leftover, namenode); + continue; + } + } + + trig_path_activate(usenode, pkg); + + varbuf_rollback(&fnvb_state); + varbuf_add_str(&fnvb, DPKGTEMPEXT); + varbuf_end_str(&fnvb); + debug(dbg_eachfiledetail, "removal_bulk cleaning temp '%s'", fnvb.buf); + path_remove_tree(fnvb.buf); + + varbuf_rollback(&fnvb_state); + varbuf_add_str(&fnvb, DPKGNEWEXT); + varbuf_end_str(&fnvb); + debug(dbg_eachfiledetail, "removal_bulk cleaning new '%s'", fnvb.buf); + path_remove_tree(fnvb.buf); + + varbuf_rollback(&fnvb_state); + varbuf_end_str(&fnvb); + + debug(dbg_eachfiledetail, "removal_bulk removing '%s'", fnvb.buf); + if (!rmdir(fnvb.buf) || errno == ENOENT || errno == ELOOP) continue; + if (errno == ENOTEMPTY || errno == EEXIST) { + debug(dbg_eachfiledetail, + "removal_bulk '%s' was not empty, will try again later", + fnvb.buf); + push_leftover(&leftover,namenode); + continue; + } else if (errno == EBUSY || errno == EPERM) { + warning(_("while removing %.250s, unable to remove directory '%.250s': " + "%s - directory may be a mount point?"), + pkg_name(pkg, pnaw_nonambig), namenode->name, strerror(errno)); + push_leftover(&leftover,namenode); + continue; + } + if (errno != ENOTDIR) + ohshite(_("cannot remove '%.250s'"), fnvb.buf); + debug(dbg_eachfiledetail, "removal_bulk unlinking '%s'", fnvb.buf); + if (secure_unlink(fnvb.buf)) + ohshite(_("unable to securely remove '%.250s'"), fnvb.buf); + } + write_filelist_except(pkg, &pkg->installed, leftover, 0); + maintscript_installed(pkg, POSTRMFILE, "post-removal", "remove", NULL); + + trig_parse_ci(pkg_infodb_get_file(pkg, &pkg->installed, TRIGGERSCIFILE), + trig_cicb_interest_delete, NULL, pkg, &pkg->installed); + trig_file_interests_save(); + + debug(dbg_general, "removal_bulk cleaning info directory"); + pkg_infodb_foreach(pkg, &pkg->installed, removal_bulk_remove_file); + dir_sync_path(pkg_infodb_get_dir()); + + pkg_set_status(pkg, PKG_STAT_CONFIGFILES); + pkg->installed.essential = false; + pkg->installed.is_protected = false; + modstatdb_note(pkg); + push_checkpoint(~ehflag_bombout, ehflag_normaltidy); +} + +static void removal_bulk_remove_leftover_dirs(struct pkginfo *pkg) { + struct fsys_hash_rev_iter rev_iter; + struct fsys_namenode_list *leftover; + struct fsys_namenode *namenode; + static struct varbuf fnvb; + struct stat stab; + + /* We may have modified this previously. */ + ensure_packagefiles_available(pkg); + + modstatdb_note(pkg); + push_checkpoint(~ehflag_bombout, ehflag_normaltidy); + + fsys_hash_rev_iter_init(&rev_iter, pkg->files); + leftover = NULL; + while ((namenode = fsys_hash_rev_iter_next(&rev_iter))) { + struct fsys_namenode *usenode; + + debug(dbg_eachfile, "removal_bulk '%s' flags=%o", + namenode->name, namenode->flags); + if (namenode->flags & FNNF_OLD_CONFF) { + /* This can only happen if removal_bulk_remove_configfiles() got + * interrupted half way. */ + debug(dbg_eachfiledetail, "removal_bulk expecting only left over dirs, " + "ignoring conffile '%s'", namenode->name); + continue; + } + + usenode = namenodetouse(namenode, pkg, &pkg->installed); + + varbuf_set_str(&fnvb, dpkg_fsys_get_dir()); + varbuf_add_str(&fnvb, usenode->name); + varbuf_end_str(&fnvb); + + if (!stat(fnvb.buf,&stab) && S_ISDIR(stab.st_mode)) { + debug(dbg_eachfiledetail, "removal_bulk is a directory"); + /* Only delete a directory or a link to one if we're the only + * package which uses it. Other files should only be listed + * in this package (but we don't check). */ + if (dir_is_used_by_pkg(namenode, pkg, leftover)) { + push_leftover(&leftover, namenode); + continue; + } + if (dir_is_used_by_others(namenode, pkg)) + continue; + + if (strcmp(usenode->name, "/.") == 0) { + debug(dbg_eachfiledetail, + "removal_bulk '%s' root directory, cannot remove", fnvb.buf); + push_leftover(&leftover, namenode); + continue; + } + } + + trig_path_activate(usenode, pkg); + + debug(dbg_eachfiledetail, "removal_bulk removing '%s'", fnvb.buf); + if (!rmdir(fnvb.buf) || errno == ENOENT || errno == ELOOP) continue; + if (errno == ENOTEMPTY || errno == EEXIST) { + warning(_("while removing %.250s, directory '%.250s' not empty so not removed"), + pkg_name(pkg, pnaw_nonambig), namenode->name); + push_leftover(&leftover,namenode); + continue; + } else if (errno == EBUSY || errno == EPERM) { + warning(_("while removing %.250s, unable to remove directory '%.250s': " + "%s - directory may be a mount point?"), + pkg_name(pkg, pnaw_nonambig), namenode->name, strerror(errno)); + push_leftover(&leftover,namenode); + continue; + } + if (errno != ENOTDIR) + ohshite(_("cannot remove '%.250s'"), fnvb.buf); + + if (lstat(fnvb.buf, &stab) == 0 && S_ISLNK(stab.st_mode)) { + debug(dbg_eachfiledetail, "removal_bulk is a symlink to a directory"); + + if (unlink(fnvb.buf)) + ohshite(_("cannot remove '%.250s'"), fnvb.buf); + + continue; + } + + push_leftover(&leftover,namenode); + } + write_filelist_except(pkg, &pkg->installed, leftover, 0); + + modstatdb_note(pkg); + push_checkpoint(~ehflag_bombout, ehflag_normaltidy); +} + +static void removal_bulk_remove_configfiles(struct pkginfo *pkg) { + static const char *const removeconffexts[] = { REMOVECONFFEXTS, NULL }; + int rc; + int conffnameused, conffbasenamelen; + char *conffbasename; + struct conffile *conff, **lconffp; + struct fsys_namenode_list *searchfile; + DIR *dsd; + struct dirent *de; + char *p; + const char *const *ext; + + printf(_("Purging configuration files for %s (%s) ...\n"), + pkg_name(pkg, pnaw_nonambig), + versiondescribe(&pkg->installed.version, vdew_nonambig)); + log_action("purge", pkg, &pkg->installed); + trig_activate_packageprocessing(pkg); + + /* We may have modified this above. */ + ensure_packagefiles_available(pkg); + + /* We're about to remove the configuration, so remove the note + * about which version it was ... */ + dpkg_version_blank(&pkg->configversion); + modstatdb_note(pkg); + + /* Remove from our list any conffiles that aren't ours any more or + * are involved in diversions, except if we are the package doing the + * diverting. */ + for (lconffp = &pkg->installed.conffiles; (conff = *lconffp) != NULL; ) { + for (searchfile = pkg->files; + searchfile && strcmp(searchfile->namenode->name,conff->name); + searchfile= searchfile->next); + if (!searchfile) { + debug(dbg_conff, "removal_bulk conffile not ours any more '%s'", + conff->name); + *lconffp= conff->next; + } else if (searchfile->namenode->divert && + (searchfile->namenode->divert->camefrom || + (searchfile->namenode->divert->useinstead && + searchfile->namenode->divert->pkgset != pkg->set))) { + debug(dbg_conff, "removal_bulk conffile '%s' ignored due to diversion", + conff->name); + *lconffp= conff->next; + } else { + debug(dbg_conffdetail, "removal_bulk set to new conffile '%s'", + conff->name); + conff->hash = NEWCONFFILEFLAG; + lconffp= &conff->next; + } + } + modstatdb_note(pkg); + + for (conff= pkg->installed.conffiles; conff; conff= conff->next) { + struct fsys_namenode *namenode, *usenode; + static struct varbuf fnvb, removevb; + struct varbuf_state removevb_state; + + if (conff->obsolete) { + debug(dbg_conffdetail, "removal_bulk conffile obsolete %s", + conff->name); + } + varbuf_reset(&fnvb); + rc = conffderef(pkg, &fnvb, conff->name); + debug(dbg_conffdetail, "removal_bulk conffile '%s' (= '%s')", + conff->name, rc == -1 ? "<rc == -1>" : fnvb.buf); + if (rc == -1) + continue; + + namenode = fsys_hash_find_node(conff->name, FHFF_NONE); + usenode = namenodetouse(namenode, pkg, &pkg->installed); + + trig_path_activate(usenode, pkg); + + conffnameused = fnvb.used; + if (unlink(fnvb.buf) && errno != ENOENT && errno != ENOTDIR) + ohshite(_("cannot remove old config file '%.250s' (= '%.250s')"), + conff->name, fnvb.buf); + p= strrchr(fnvb.buf,'/'); if (!p) continue; + *p = '\0'; + varbuf_reset(&removevb); + varbuf_add_dir(&removevb, fnvb.buf); + varbuf_end_str(&removevb); + varbuf_snapshot(&removevb, &removevb_state); + + dsd= opendir(removevb.buf); + if (!dsd) { + int e=errno; + debug(dbg_conffdetail, "removal_bulk conffile no dsd %s %s", + fnvb.buf, strerror(e)); errno= e; + if (errno == ENOENT || errno == ENOTDIR) continue; + ohshite(_("cannot read config file directory '%.250s' (from '%.250s')"), + fnvb.buf, conff->name); + } + debug(dbg_conffdetail, "removal_bulk conffile cleaning dsd %s", fnvb.buf); + push_cleanup(cu_closedir, ~0, 1, (void *)dsd); + *p= '/'; + conffbasenamelen= strlen(++p); + conffbasename= fnvb.buf+conffnameused-conffbasenamelen; + while ((de = readdir(dsd)) != NULL) { + debug(dbg_stupidlyverbose, "removal_bulk conffile dsd entry='%s'" + " conffbasename='%s' conffnameused=%d conffbasenamelen=%d", + de->d_name, conffbasename, conffnameused, conffbasenamelen); + if (strncmp(de->d_name, conffbasename, conffbasenamelen) == 0) { + debug(dbg_stupidlyverbose, "removal_bulk conffile dsd entry starts right"); + for (ext= removeconffexts; *ext; ext++) + if (strcmp(*ext, de->d_name + conffbasenamelen) == 0) + goto yes_remove; + p= de->d_name+conffbasenamelen; + if (*p++ == '~') { + while (*p && c_isdigit(*p)) + p++; + if (*p == '~' && !*++p) goto yes_remove; + } + } + debug(dbg_stupidlyverbose, "removal_bulk conffile dsd entry starts wrong"); + if (de->d_name[0] == '#' && + strncmp(de->d_name + 1, conffbasename, conffbasenamelen) == 0 && + strcmp(de->d_name + 1 + conffbasenamelen, "#") == 0) + goto yes_remove; + debug(dbg_stupidlyverbose, "removal_bulk conffile dsd entry not it"); + continue; + yes_remove: + varbuf_rollback(&removevb_state); + varbuf_add_str(&removevb, de->d_name); + varbuf_end_str(&removevb); + debug(dbg_conffdetail, "removal_bulk conffile dsd entry removing '%s'", + removevb.buf); + if (unlink(removevb.buf) && errno != ENOENT && errno != ENOTDIR) + ohshite(_("cannot remove old backup config file '%.250s' (of '%.250s')"), + removevb.buf, conff->name); + } + pop_cleanup(ehflag_normaltidy); /* closedir */ + } + + /* Remove the conffiles from the file list file. */ + write_filelist_except(pkg, &pkg->installed, pkg->files, + FNNF_OLD_CONFF); + + pkg->installed.conffiles = NULL; + modstatdb_note(pkg); + + maintscript_installed(pkg, POSTRMFILE, "post-removal", "purge", NULL); +} + +/* + * This is used both by deferred_remove() in this file, and at the end of + * process_archive() in archives.c if it needs to finish removing a + * conflicting package. + */ +void removal_bulk(struct pkginfo *pkg) { + bool foundpostrm; + + debug(dbg_general, "removal_bulk package %s", pkg_name(pkg, pnaw_always)); + + if (pkg->status == PKG_STAT_HALFINSTALLED || + pkg->status == PKG_STAT_UNPACKED) { + removal_bulk_remove_files(pkg); + } + + foundpostrm = pkg_infodb_has_file(pkg, &pkg->installed, POSTRMFILE); + + debug(dbg_general, "removal_bulk purging? foundpostrm=%d",foundpostrm); + + if (!foundpostrm && !pkg->installed.conffiles) { + /* If there are no config files and no postrm script then we + * go straight into ‘purge’. */ + debug(dbg_general, "removal_bulk no postrm, no conffiles, purging"); + + pkg_set_want(pkg, PKG_WANT_PURGE); + dpkg_version_blank(&pkg->configversion); + } else if (pkg->want == PKG_WANT_PURGE) { + removal_bulk_remove_configfiles(pkg); + } + + /* I.e., either of the two branches above. */ + if (pkg->want == PKG_WANT_PURGE) { + const char *filename; + + /* Retry empty directories, and warn on any leftovers that aren't. */ + removal_bulk_remove_leftover_dirs(pkg); + + filename = pkg_infodb_get_file(pkg, &pkg->installed, LISTFILE); + debug(dbg_general, "removal_bulk purge done, removing list '%s'", + filename); + if (unlink(filename) && errno != ENOENT) + ohshite(_("cannot remove old files list")); + + filename = pkg_infodb_get_file(pkg, &pkg->installed, POSTRMFILE); + debug(dbg_general, "removal_bulk purge done, removing postrm '%s'", + filename); + if (unlink(filename) && errno != ENOENT) + ohshite(_("can't remove old postrm script")); + + pkg_set_status(pkg, PKG_STAT_NOTINSTALLED); + pkg_set_want(pkg, PKG_WANT_UNKNOWN); + + /* This will mess up reverse links, but if we follow them + * we won't go back because pkg->status is PKG_STAT_NOTINSTALLED. */ + pkgbin_blank(&pkg->installed); + } + + pkg_reset_eflags(pkg); + modstatdb_note(pkg); + + debug(dbg_general, "removal done"); +} |