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enter_chroot: restore auto locale generation

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First let's add a chroot upgrade hook that'll declare a small list of
locales to speed up glibc upgrades.

The other blocker was that `cros_sdk --enter` took an inordinate amount
of time to execute (`locale-gen -u` specifically) when the number of
existing locales is huge.  This seems to be a bug in the bash/glibc
stack which is resolved in newer versions, but we can workaround the
issue by forcing locale-gen to run in a C locale.  The tool itself does
not care about its locale and we silence its output.

BUG=chromium-os:20378
TEST=`cros_sdk --enter`; see no locales in /etc/locale.gen; run `./build_packages` and see upgrade hook work
TEST=generate all 400 locales; `cros_sdk --enter`; see that it was quick

Change-Id: I8fcc5e26bd8e1bcfd52b6a6c7ef3cacf0a252081
Reviewed-on: http://gerrit.chromium.org/gerrit/7806
Reviewed-by: David James <davidjames@chromium.org>
Reviewed-by: Zdenek Behan <zbehan@chromium.org>
Commit-Ready: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
This commit is contained in:
Mike Frysinger 2011-09-15 16:17:49 -04:00 committed by chrome-bot
parent acc4c9b3fc
commit 4d258cdf9d
2 changed files with 24 additions and 7 deletions
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16
chroot_version_hooks.d/10_default_locales Normal file
View File

@ -0,0 +1,16 @@
# Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# Make sure existing chroot's have default locales enabled
# to match the new make_chroot behavior
# http://crosbug.com/20378
if ! grep -q -v -e '^#' -e '^$' /etc/locale.gen ; then
sudo_append /etc/locale.gen <<EOF
en_US ISO-8859-1
en_US.UTF-8 UTF-8
EOF
fi
info "Chroot upgraded to version 10: Set default locale sets"
exit 0

15
sdk_lib/enter_chroot.sh
View File

@ -336,13 +336,14 @@ function setup_env {
esac
gen_locales=("${gen_locales[@]}" "${l} ${enc}")
done
# TODO(raymes): Something broke this with the new
# glibc. Need to uncomment this as soon as it's fixed.
# http://code.google.com/p/chromium-os/issues/detail?id=20378
#if [[ ${#gen_locales[@]} -gt 0 ]] ; then
# sudo -- chroot "$FLAGS_chroot" locale-gen -q -u \
# -G "$(printf '%s\n' "${gen_locales[@]}")"
#fi
if [[ ${#gen_locales[@]} -gt 0 ]] ; then
# Force LC_ALL=C to workaround slow string parsing in bash
# with long multibyte strings. Newer setups have this fixed,
# but locale-gen doesn't need to be run in any locale in the
# first place, so just go with C to keep it fast.
sudo -- chroot "$FLAGS_chroot" env LC_ALL=C locale-gen -q -u \
-G "$(printf '%s\n' "${gen_locales[@]}")"
fi
# Fix permissions on shared memory to allow non-root users access to POSIX
# semaphores.