diff options
Diffstat (limited to 'src/packages.c')
| -rw-r--r-- | src/packages.c | 758 |
1 files changed, 758 insertions, 0 deletions
diff --git a/src/packages.c b/src/packages.c new file mode 100644 index 0000000..9c4b75c --- /dev/null +++ b/src/packages.c @@ -0,0 +1,758 @@ +/* + * dpkg - main program for package management + * packages.c - common to actions that process packages + * + * Copyright © 1994,1995 Ian Jackson <ijackson@chiark.greenend.org.uk> + * Copyright © 2006-2014 Guillem Jover <guillem@debian.org> + * Copyright © 2011 Linaro Limited + * Copyright © 2011 Raphaël Hertzog <hertzog@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 <string.h> +#include <fcntl.h> +#include <dirent.h> +#include <unistd.h> +#include <stdlib.h> +#include <stdio.h> + +#include <dpkg/i18n.h> +#include <dpkg/dpkg.h> +#include <dpkg/dpkg-db.h> +#include <dpkg/pkg-list.h> +#include <dpkg/pkg-queue.h> +#include <dpkg/string.h> +#include <dpkg/options.h> +#include <dpkg/db-ctrl.h> +#include <dpkg/db-fsys.h> + +#include "main.h" + +static struct pkginfo *progress_bytrigproc; +static struct pkg_queue queue = PKG_QUEUE_INIT; + +enum dependtry dependtry = DEPEND_TRY_NORMAL; +int sincenothing = 0; + +void +enqueue_package(struct pkginfo *pkg) +{ + ensure_package_clientdata(pkg); + if (pkg->clientdata->enqueued) + return; + pkg->clientdata->enqueued = true; + pkg_queue_push(&queue, pkg); +} + +void +enqueue_package_mark_seen(struct pkginfo *pkg) +{ + enqueue_package(pkg); + pkg->clientdata->cmdline_seen++; +} + +static void +enqueue_pending(void) +{ + struct pkg_hash_iter *iter; + struct pkginfo *pkg; + + iter = pkg_hash_iter_new(); + while ((pkg = pkg_hash_iter_next_pkg(iter)) != NULL) { + switch (cipaction->arg_int) { + case act_configure: + if (!(pkg->status == PKG_STAT_UNPACKED || + pkg->status == PKG_STAT_HALFCONFIGURED || + pkg->trigpend_head)) + continue; + if (pkg->want != PKG_WANT_INSTALL && + pkg->want != PKG_WANT_HOLD) + continue; + break; + case act_triggers: + if (!pkg->trigpend_head) + continue; + if (pkg->want != PKG_WANT_INSTALL && + pkg->want != PKG_WANT_HOLD) + continue; + break; + case act_remove: + case act_purge: + if (pkg->want != PKG_WANT_PURGE) { + if (pkg->want != PKG_WANT_DEINSTALL) + continue; + if (pkg->status == PKG_STAT_CONFIGFILES) + continue; + } + if (pkg->status == PKG_STAT_NOTINSTALLED) + continue; + break; + default: + internerr("unknown action '%d'", cipaction->arg_int); + } + enqueue_package(pkg); + } + pkg_hash_iter_free(iter); +} + +static void +enqueue_specified(const char *const *argv) +{ + const char *thisarg; + + while ((thisarg = *argv++) != NULL) { + struct pkginfo *pkg; + + pkg = dpkg_options_parse_pkgname(cipaction, thisarg); + if (pkg->status == PKG_STAT_NOTINSTALLED && + str_match_end(pkg->set->name, DEBEXT)) { + badusage(_("you must specify packages by their own names, " + "not by quoting the names of the files they come in")); + } + enqueue_package_mark_seen(pkg); + } + + if (cipaction->arg_int == act_configure) + trigproc_populate_deferred(); +} + +int +packages(const char *const *argv) +{ + trigproc_install_hooks(); + + modstatdb_open(f_noact ? msdbrw_readonly : + in_force(FORCE_NON_ROOT) ? msdbrw_write : + msdbrw_needsuperuser); + checkpath(); + pkg_infodb_upgrade(); + + log_message("startup packages %s", cipaction->olong); + + if (f_pending) { + if (*argv) + badusage(_("--%s --pending does not take any non-option arguments"),cipaction->olong); + + enqueue_pending(); + } else { + if (!*argv) + badusage(_("--%s needs at least one package name argument"), cipaction->olong); + + enqueue_specified(argv); + } + + ensure_diversions(); + + process_queue(); + trigproc_run_deferred(); + + modstatdb_shutdown(); + + return 0; +} + +void process_queue(void) { + struct pkg_list *rundown; + struct pkginfo *volatile pkg; + volatile enum action action_todo; + jmp_buf ejbuf; + enum pkg_istobe istobe = PKG_ISTOBE_NORMAL; + + if (abort_processing) + return; + + clear_istobes(); + + switch (cipaction->arg_int) { + case act_triggers: + case act_configure: + case act_install: + istobe = PKG_ISTOBE_INSTALLNEW; + break; + case act_remove: + case act_purge: + istobe = PKG_ISTOBE_REMOVE; + break; + default: + internerr("unknown action '%d'", cipaction->arg_int); + } + for (rundown = queue.head; rundown; rundown = rundown->next) { + ensure_package_clientdata(rundown->pkg); + + /* We have processed this package more than once. There are no duplicates + * as we make sure of that when enqueuing them. */ + if (rundown->pkg->clientdata->cmdline_seen > 1) { + switch (cipaction->arg_int) { + case act_triggers: + case act_configure: case act_remove: case act_purge: + printf(_("Package %s listed more than once, only processing once.\n"), + pkg_name(rundown->pkg, pnaw_nonambig)); + break; + case act_install: + printf(_("More than one copy of package %s has been unpacked\n" + " in this run ! Only configuring it once.\n"), + pkg_name(rundown->pkg, pnaw_nonambig)); + break; + default: + internerr("unknown action '%d'", cipaction->arg_int); + } + } + rundown->pkg->clientdata->istobe = istobe; + } + + while (!pkg_queue_is_empty(&queue)) { + pkg = pkg_queue_pop(&queue); + if (!pkg) + continue; /* Duplicate, which we removed earlier. */ + + ensure_package_clientdata(pkg); + pkg->clientdata->enqueued = false; + + action_todo = cipaction->arg_int; + + if (sincenothing++ > queue.length * 3 + 2) { + /* Make sure that even if we have exceeded the queue since not having + * made any progress, we are not getting stuck trying to progress by + * trigger processing, w/o jumping into the next dependtry. */ + dependtry++; + sincenothing = 0; + if (dependtry >= DEPEND_TRY_LAST) + internerr("exceeded dependtry %d (sincenothing=%d; queue.length=%d)", + dependtry, sincenothing, queue.length); + } else if (sincenothing > queue.length * 2 + 2) { + if (dependtry >= DEPEND_TRY_TRIGGERS && + progress_bytrigproc && progress_bytrigproc->trigpend_head) { + enqueue_package(pkg); + pkg = progress_bytrigproc; + progress_bytrigproc = NULL; + action_todo = act_configure; + } else { + dependtry++; + sincenothing = 0; + if (dependtry >= DEPEND_TRY_LAST) + internerr("exceeded dependtry %d (sincenothing=%d, queue.length=%d)", + dependtry, sincenothing, queue.length); + } + } + + debug(dbg_general, "process queue pkg %s queue.len %d progress %d, try %d", + pkg_name(pkg, pnaw_always), queue.length, sincenothing, dependtry); + + if (pkg->status > PKG_STAT_INSTALLED) + internerr("package %s status %d is out-of-bounds", + pkg_name(pkg, pnaw_always), pkg->status); + + if (setjmp(ejbuf)) { + /* Give up on it from the point of view of other packages, i.e. reset + * istobe. */ + pkg->clientdata->istobe = PKG_ISTOBE_NORMAL; + + pop_error_context(ehflag_bombout); + if (abort_processing) + return; + continue; + } + push_error_context_jump(&ejbuf, print_error_perpackage, + pkg_name(pkg, pnaw_nonambig)); + + switch (action_todo) { + case act_triggers: + if (!pkg->trigpend_head) + ohshit(_("package %.250s is not ready for trigger processing\n" + " (current status '%.250s' with no pending triggers)"), + pkg_name(pkg, pnaw_nonambig), pkg_status_name(pkg)); + /* Fall through. */ + case act_install: + /* Don't try to configure pkgs that we've just disappeared. */ + if (pkg->status == PKG_STAT_NOTINSTALLED) + break; + /* Fall through. */ + case act_configure: + /* Do whatever is most needed. */ + if (pkg->trigpend_head) + trigproc(pkg, TRIGPROC_TRY_QUEUED); + else + deferred_configure(pkg); + break; + case act_remove: case act_purge: + deferred_remove(pkg); + break; + default: + internerr("unknown action '%d'", cipaction->arg_int); + } + m_output(stdout, _("<standard output>")); + m_output(stderr, _("<standard error>")); + + pop_error_context(ehflag_normaltidy); + } + + if (queue.length) + internerr("finished package processing with non-empty queue length %d", + queue.length); +} + +/*** Dependency processing - common to --configure and --remove. ***/ + +/* + * The algorithm for deciding what to configure or remove first is as + * follows: + * + * Loop through all packages doing a ‘try 1’ until we've been round and + * nothing has been done, then do ‘try 2’ and ‘try 3’ likewise. + * + * When configuring, in each try we check to see whether all + * dependencies of this package are done. If so we do it. If some of + * the dependencies aren't done yet but will be later we defer the + * package, otherwise it is an error. + * + * When removing, in each try we check to see whether there are any + * packages that would have dependencies missing if we removed this + * one. If not we remove it now. If some of these packages are + * themselves scheduled for removal we defer the package until they + * have been done. + * + * The criteria for satisfying a dependency vary with the various + * tries. In try 1 we treat the dependencies as absolute. In try 2 we + * check break any cycles in the dependency graph involving the package + * we are trying to process before trying to process the package + * normally. In try 3 (which should only be reached if + * --force-depends-version is set) we ignore version number clauses in + * Depends lines. In try 4 (only reached if --force-depends is set) we + * say "ok" regardless. + * + * If we are configuring and one of the packages we depend on is + * awaiting configuration but wasn't specified in the argument list we + * will add it to the argument list if --configure-any is specified. + * In this case we note this as having "done something" so that we + * don't needlessly escalate to higher levels of dependency checking + * and breaking. + */ + +enum found_status { + FOUND_NONE = 0, + FOUND_DEFER = 1, + FOUND_FORCED = 2, + FOUND_OK = 3, +}; + +static enum found_status +found_forced_on(enum dependtry dependtry_forced) +{ + if (dependtry >= dependtry_forced) + return FOUND_FORCED; + else + return FOUND_DEFER; +} + +/* + * Return values: + * 0: cannot be satisfied. + * 1: defer: may be satisfied later, when other packages are better or + * at higher dependtry due to --force + * will set *fixbytrig to package whose trigger processing would help + * if applicable (and leave it alone otherwise). + * 2: not satisfied but forcing + * (*interestingwarnings >= 0 on exit? caller is to print oemsgs). + * 3: satisfied now. + */ +static enum found_status +deppossi_ok_found(struct pkginfo *possdependee, struct pkginfo *requiredby, + struct pkginfo *removing, struct deppossi *provider, + struct pkginfo **fixbytrig, + bool *matched, struct deppossi *checkversion, + int *interestingwarnings, struct varbuf *oemsgs) +{ + enum found_status thisf; + + if (ignore_depends(possdependee)) { + debug(dbg_depcondetail," ignoring depended package so ok and found"); + return FOUND_OK; + } + thisf = FOUND_NONE; + if (possdependee == removing) { + if (provider) { + varbuf_printf(oemsgs, + _(" Package %s which provides %s is to be removed.\n"), + pkg_name(possdependee, pnaw_nonambig), + provider->ed->name); + } else { + varbuf_printf(oemsgs, _(" Package %s is to be removed.\n"), + pkg_name(possdependee, pnaw_nonambig)); + } + + *matched = true; + debug(dbg_depcondetail," removing possdependee, returning %d",thisf); + return thisf; + } + switch (possdependee->status) { + case PKG_STAT_UNPACKED: + case PKG_STAT_HALFCONFIGURED: + case PKG_STAT_TRIGGERSAWAITED: + case PKG_STAT_TRIGGERSPENDING: + case PKG_STAT_INSTALLED: + if (checkversion) { + if (provider) { + debug(dbg_depcondetail, " checking package %s provided by pkg %s", + checkversion->ed->name, pkg_name(possdependee, pnaw_always)); + if (!pkg_virtual_deppossi_satisfied(checkversion, provider)) { + varbuf_printf(oemsgs, + _(" Version of %s on system, provided by %s, is %s.\n"), + checkversion->ed->name, + pkg_name(possdependee, pnaw_always), + versiondescribe(&provider->version, vdew_nonambig)); + if (in_force(FORCE_DEPENDS_VERSION)) + thisf = found_forced_on(DEPEND_TRY_FORCE_DEPENDS_VERSION); + debug(dbg_depcondetail, " bad version"); + goto unsuitable; + } + } else { + debug(dbg_depcondetail, " checking non-provided pkg %s", + pkg_name(possdependee, pnaw_always)); + if (!versionsatisfied(&possdependee->installed, checkversion)) { + varbuf_printf(oemsgs, _(" Version of %s on system is %s.\n"), + pkg_name(possdependee, pnaw_nonambig), + versiondescribe(&possdependee->installed.version, + vdew_nonambig)); + if (in_force(FORCE_DEPENDS_VERSION)) + thisf = found_forced_on(DEPEND_TRY_FORCE_DEPENDS_VERSION); + debug(dbg_depcondetail, " bad version"); + goto unsuitable; + } + } + } + if (possdependee->status == PKG_STAT_INSTALLED || + possdependee->status == PKG_STAT_TRIGGERSPENDING) { + debug(dbg_depcondetail," is installed, ok and found"); + return FOUND_OK; + } + if (possdependee->status == PKG_STAT_TRIGGERSAWAITED) { + if (possdependee->trigaw.head == NULL) + internerr("package %s in state %s, has no awaited triggers", + pkg_name(possdependee, pnaw_always), + pkg_status_name(possdependee)); + + if (removing || + !(f_triggers || + (possdependee->clientdata && + possdependee->clientdata->istobe == PKG_ISTOBE_INSTALLNEW))) { + if (provider) { + varbuf_printf(oemsgs, + _(" Package %s which provides %s awaits trigger processing.\n"), + pkg_name(possdependee, pnaw_nonambig), + provider->ed->name); + } else { + varbuf_printf(oemsgs, + _(" Package %s awaits trigger processing.\n"), + pkg_name(possdependee, pnaw_nonambig)); + } + debug(dbg_depcondetail, " triggers-awaited, no fixbytrig"); + goto unsuitable; + } + /* We don't check the status of trigaw.head->pend here, just in case + * we get into the pathological situation where Triggers-Awaited but + * the named package doesn't actually have any pending triggers. In + * that case we queue the non-pending package for trigger processing + * anyway, and that trigger processing will be a noop except for + * sorting out all of the packages which name it in Triggers-Awaited. + * + * (This situation can only arise if modstatdb_note success in + * clearing the triggers-pending status of the pending package + * but then fails to go on to update the awaiters.) */ + *fixbytrig = possdependee->trigaw.head->pend; + debug(dbg_depcondetail, + " triggers-awaited, fixbytrig '%s', defer", + pkg_name(*fixbytrig, pnaw_always)); + return FOUND_DEFER; + } + if (possdependee->clientdata && + possdependee->clientdata->istobe == PKG_ISTOBE_INSTALLNEW) { + debug(dbg_depcondetail," unpacked/halfconfigured, defer"); + return FOUND_DEFER; + } else if (!removing && in_force(FORCE_CONFIGURE_ANY) && + !skip_due_to_hold(possdependee) && + !(possdependee->status == PKG_STAT_HALFCONFIGURED)) { + notice(_("also configuring '%s' (required by '%s')"), + pkg_name(possdependee, pnaw_nonambig), + pkg_name(requiredby, pnaw_nonambig)); + enqueue_package(possdependee); + sincenothing = 0; + return FOUND_DEFER; + } else { + if (provider) { + varbuf_printf(oemsgs, + _(" Package %s which provides %s is not configured yet.\n"), + pkg_name(possdependee, pnaw_nonambig), + provider->ed->name); + } else { + varbuf_printf(oemsgs, _(" Package %s is not configured yet.\n"), + pkg_name(possdependee, pnaw_nonambig)); + } + + debug(dbg_depcondetail, " not configured/able"); + goto unsuitable; + } + + default: + if (provider) { + varbuf_printf(oemsgs, + _(" Package %s which provides %s is not installed.\n"), + pkg_name(possdependee, pnaw_nonambig), + provider->ed->name); + } else { + varbuf_printf(oemsgs, _(" Package %s is not installed.\n"), + pkg_name(possdependee, pnaw_nonambig)); + } + + debug(dbg_depcondetail, " not installed"); + goto unsuitable; + } + +unsuitable: + debug(dbg_depcondetail, " returning %d", thisf); + (*interestingwarnings)++; + + return thisf; +} + +static void +breaks_check_one(struct varbuf *aemsgs, enum dep_check *ok, + struct deppossi *breaks, struct pkginfo *broken, + struct pkginfo *breaker, struct deppossi *virtbroken) +{ + struct varbuf depmsg = VARBUF_INIT; + + debug(dbg_depcondetail, " checking breaker %s virtbroken %s", + pkg_name(breaker, pnaw_always), + virtbroken ? virtbroken->ed->name : "<none>"); + + if (breaker->status == PKG_STAT_NOTINSTALLED || + breaker->status == PKG_STAT_CONFIGFILES) + return; + if (broken == breaker) return; + if (!versionsatisfied(&broken->installed, breaks)) return; + /* The test below can only trigger if dep_breaks start having + * arch qualifiers different from “any”. */ + if (!archsatisfied(&broken->installed, breaks)) + return; + if (ignore_depends(breaker)) return; + if (virtbroken && ignore_depends(&virtbroken->ed->pkg)) + return; + if (virtbroken && !pkg_virtual_deppossi_satisfied(breaks, virtbroken)) + return; + + varbufdependency(&depmsg, breaks->up); + varbuf_end_str(&depmsg); + varbuf_printf(aemsgs, _(" %s (%s) breaks %s and is %s.\n"), + pkg_name(breaker, pnaw_nonambig), + versiondescribe(&breaker->installed.version, vdew_nonambig), + depmsg.buf, gettext(statusstrings[breaker->status])); + varbuf_destroy(&depmsg); + + if (virtbroken) { + varbuf_printf(aemsgs, _(" %s (%s) provides %s.\n"), + pkg_name(broken, pnaw_nonambig), + versiondescribe(&broken->installed.version, vdew_nonambig), + virtbroken->ed->name); + } else if (breaks->verrel != DPKG_RELATION_NONE) { + varbuf_printf(aemsgs, _(" Version of %s to be configured is %s.\n"), + pkg_name(broken, pnaw_nonambig), + versiondescribe(&broken->installed.version, vdew_nonambig)); + if (in_force(FORCE_DEPENDS_VERSION)) + return; + } + if (force_breaks(breaks)) return; + *ok = DEP_CHECK_HALT; +} + +static void +breaks_check_target(struct varbuf *aemsgs, enum dep_check *ok, + struct pkginfo *broken, struct pkgset *target, + struct deppossi *virtbroken) +{ + struct deppossi *possi; + + for (possi = target->depended.installed; possi; possi = possi->rev_next) { + if (possi->up->type != dep_breaks) continue; + breaks_check_one(aemsgs, ok, possi, broken, possi->up->up, virtbroken); + } +} + +enum dep_check +breakses_ok(struct pkginfo *pkg, struct varbuf *aemsgs) +{ + struct dependency *dep; + struct deppossi *virtbroken; + enum dep_check ok = DEP_CHECK_OK; + + debug(dbg_depcon, " checking Breaks"); + + breaks_check_target(aemsgs, &ok, pkg, pkg->set, NULL); + + for (dep= pkg->installed.depends; dep; dep= dep->next) { + if (dep->type != dep_provides) continue; + virtbroken = dep->list; + debug(dbg_depcondetail, " checking virtbroken %s", virtbroken->ed->name); + breaks_check_target(aemsgs, &ok, pkg, virtbroken->ed, virtbroken); + } + return ok; +} + +/* + * Checks [Pre]-Depends only. + */ +enum dep_check +dependencies_ok(struct pkginfo *pkg, struct pkginfo *removing, + struct varbuf *aemsgs) +{ + /* Valid values: 2 = ok, 1 = defer, 0 = halt. */ + enum dep_check ok; + /* Valid values: 0 = none, 1 = defer, 2 = withwarning, 3 = ok. */ + enum found_status found, thisf; + int interestingwarnings; + bool matched, anycannotfixbytrig; + struct varbuf oemsgs = VARBUF_INIT; + struct dependency *dep; + struct deppossi *possi, *provider; + struct pkginfo *possfixbytrig, *canfixbytrig; + + ok = DEP_CHECK_OK; + debug(dbg_depcon,"checking dependencies of %s (- %s)", + pkg_name(pkg, pnaw_always), + removing ? pkg_name(removing, pnaw_always) : "<none>"); + + anycannotfixbytrig = false; + canfixbytrig = NULL; + for (dep= pkg->installed.depends; dep; dep= dep->next) { + if (dep->type != dep_depends && dep->type != dep_predepends) continue; + debug(dbg_depcondetail," checking group ..."); + matched = false; + interestingwarnings = 0; + varbuf_reset(&oemsgs); + found = FOUND_NONE; + possfixbytrig = NULL; + for (possi = dep->list; found != FOUND_OK && possi; possi = possi->next) { + struct deppossi_pkg_iterator *possi_iter; + struct pkginfo *pkg_pos; + + debug(dbg_depcondetail," checking possibility -> %s",possi->ed->name); + if (possi->cyclebreak) { + debug(dbg_depcondetail," break cycle so ok and found"); + found = FOUND_OK; + break; + } + + thisf = FOUND_NONE; + possi_iter = deppossi_pkg_iter_new(possi, wpb_installed); + while ((pkg_pos = deppossi_pkg_iter_next(possi_iter))) { + thisf = deppossi_ok_found(pkg_pos, pkg, removing, NULL, + &possfixbytrig, &matched, possi, + &interestingwarnings, &oemsgs); + if (thisf > found) + found = thisf; + if (found == FOUND_OK) + break; + } + deppossi_pkg_iter_free(possi_iter); + + if (found != FOUND_OK) { + for (provider = possi->ed->depended.installed; + found != FOUND_OK && provider; + provider = provider->rev_next) { + if (provider->up->type != dep_provides) + continue; + debug(dbg_depcondetail, " checking provider %s", + pkg_name(provider->up->up, pnaw_always)); + if (!deparchsatisfied(&provider->up->up->installed, provider->arch, + possi)) { + debug(dbg_depcondetail, " provider does not satisfy arch"); + continue; + } + thisf = deppossi_ok_found(provider->up->up, pkg, removing, provider, + &possfixbytrig, &matched, possi, + &interestingwarnings, &oemsgs); + if (thisf == FOUND_DEFER && provider->up->up == pkg && !removing) { + /* IOW, if the pkg satisfies its own dep (via a provide), then + * we let it pass, even if it isn't configured yet (as we're + * installing it). */ + thisf = FOUND_OK; + } + if (thisf > found) + found = thisf; + } + } + debug(dbg_depcondetail," found %d",found); + if (thisf > found) found= thisf; + } + if (in_force(FORCE_DEPENDS)) { + thisf = found_forced_on(DEPEND_TRY_FORCE_DEPENDS); + if (thisf > found) { + found = thisf; + debug(dbg_depcondetail, " rescued by force-depends, found %d", found); + } + } + debug(dbg_depcondetail, " found %d matched %d possfixbytrig %s", + found, matched, + possfixbytrig ? pkg_name(possfixbytrig, pnaw_always) : "-"); + if (removing && !matched) continue; + switch (found) { + case FOUND_NONE: + anycannotfixbytrig = true; + ok = DEP_CHECK_HALT; + /* Fall through. */ + case FOUND_FORCED: + varbuf_add_str(aemsgs, " "); + varbuf_add_pkgbin_name(aemsgs, pkg, &pkg->installed, pnaw_nonambig); + varbuf_add_str(aemsgs, _(" depends on ")); + varbufdependency(aemsgs, dep); + if (interestingwarnings) { + /* Don't print the line about the package to be removed if + * that's the only line. */ + varbuf_end_str(&oemsgs); + varbuf_add_str(aemsgs, _("; however:\n")); + varbuf_add_str(aemsgs, oemsgs.buf); + } else { + varbuf_add_str(aemsgs, ".\n"); + } + break; + case FOUND_DEFER: + if (possfixbytrig) + canfixbytrig = possfixbytrig; + else + anycannotfixbytrig = true; + if (ok > DEP_CHECK_DEFER) + ok = DEP_CHECK_DEFER; + break; + case FOUND_OK: + break; + default: + internerr("unknown value for found '%d'", found); + } + } + if (ok == DEP_CHECK_HALT && + (pkg->clientdata && pkg->clientdata->istobe == PKG_ISTOBE_REMOVE)) + ok = DEP_CHECK_DEFER; + if (!anycannotfixbytrig && canfixbytrig) + progress_bytrigproc = canfixbytrig; + + varbuf_destroy(&oemsgs); + debug(dbg_depcon,"ok %d msgs >>%.*s<<", ok, (int)aemsgs->used, aemsgs->buf); + return ok; +} |