| #!/bin/bash -e |
| |
| # Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| # This script installs Debian-derived distributions in a chroot environment. |
| # It can for example be used to have an accurate 32bit build and test |
| # environment when otherwise working on a 64bit machine. |
| # N. B. it is unlikely that this script will ever work on anything other than a |
| # Debian-derived system. |
| |
| # Older Debian based systems had both "admin" and "adm" groups, with "admin" |
| # apparently being used in more places. Newer distributions have standardized |
| # on just the "adm" group. Check /etc/group for the prefered name of the |
| # administrator group. |
| admin=$(grep '^admin:' /etc/group >&/dev/null && echo admin || echo adm) |
| |
| usage() { |
| echo "usage: ${0##*/} [-m mirror] [-g group,...] [-s] [-c]" |
| echo "-b dir additional directories that should be bind mounted," |
| echo ' or "NONE".' |
| echo " Default: if local filesystems present, ask user for help" |
| echo "-g group,... groups that can use the chroot unauthenticated" |
| echo " Default: '${admin}' and current user's group ('$(id -gn)')" |
| echo "-l List all installed chroot environments" |
| echo "-m mirror an alternate repository mirror for package downloads" |
| echo "-s configure default deb-srcs" |
| echo "-c always copy 64bit helper binaries to 32bit chroot" |
| echo "-h this help message" |
| } |
| |
| process_opts() { |
| local OPTNAME OPTIND OPTERR OPTARG |
| while getopts ":b:g:lm:sch" OPTNAME; do |
| case "$OPTNAME" in |
| b) |
| if [ "${OPTARG}" = "NONE" -a -z "${bind_mounts}" ]; then |
| bind_mounts="${OPTARG}" |
| else |
| if [ "${bind_mounts}" = "NONE" -o "${OPTARG}" = "${OPTARG#/}" -o \ |
| ! -d "${OPTARG}" ]; then |
| echo "Invalid -b option(s)" |
| usage |
| exit 1 |
| fi |
| bind_mounts="${bind_mounts} |
| ${OPTARG} ${OPTARG} none rw,bind 0 0" |
| fi |
| ;; |
| g) |
| [ -n "${OPTARG}" ] && |
| chroot_groups="${chroot_groups}${chroot_groups:+,}${OPTARG}" |
| ;; |
| l) |
| list_all_chroots |
| exit |
| ;; |
| m) |
| if [ -n "${mirror}" ]; then |
| echo "You can only specify exactly one mirror location" |
| usage |
| exit 1 |
| fi |
| mirror="$OPTARG" |
| ;; |
| s) |
| add_srcs="y" |
| ;; |
| c) |
| copy_64="y" |
| ;; |
| h) |
| usage |
| exit 0 |
| ;; |
| \:) |
| echo "'-$OPTARG' needs an argument." |
| usage |
| exit 1 |
| ;; |
| *) |
| echo "invalid command-line option: $OPTARG" |
| usage |
| exit 1 |
| ;; |
| esac |
| done |
| |
| if [ $# -ge ${OPTIND} ]; then |
| eval echo "Unexpected command line argument: \${${OPTIND}}" |
| usage |
| exit 1 |
| fi |
| } |
| |
| list_all_chroots() { |
| for i in /var/lib/chroot/*; do |
| i="${i##*/}" |
| [ "${i}" = "*" ] && continue |
| [ -x "/usr/local/bin/${i%bit}" ] || continue |
| grep -qs "^\[${i%bit}\]\$" /etc/schroot/schroot.conf || continue |
| [ -r "/etc/schroot/script-${i}" -a \ |
| -r "/etc/schroot/mount-${i}" ] || continue |
| echo "${i%bit}" |
| done |
| } |
| |
| getkey() { |
| ( |
| trap 'stty echo -iuclc icanon 2>/dev/null' EXIT INT TERM QUIT HUP |
| stty -echo iuclc -icanon 2>/dev/null |
| dd count=1 bs=1 2>/dev/null |
| ) |
| } |
| |
| chr() { |
| printf "\\$(printf '%03o' "$1")" |
| } |
| |
| ord() { |
| printf '%d' $(printf '%c' "$1" | od -tu1 -An) |
| } |
| |
| is_network_drive() { |
| stat -c %T -f "$1/" 2>/dev/null | |
| egrep -qs '^nfs|cifs|smbfs' |
| } |
| |
| # Check that we are running as a regular user |
| [ "$(id -nu)" = root ] && { |
| echo "Run this script as a regular user and provide your \"sudo\"" \ |
| "password if requested" >&2 |
| exit 1 |
| } |
| |
| process_opts "$@" |
| |
| echo "This script will help you through the process of installing a" |
| echo "Debian or Ubuntu distribution in a chroot environment. You will" |
| echo "have to provide your \"sudo\" password when requested." |
| echo |
| |
| # Error handler |
| trap 'exit 1' INT TERM QUIT HUP |
| trap 'sudo apt-get clean; tput bel; echo; echo Failed' EXIT |
| |
| # Install any missing applications that this script relies on. If these packages |
| # are already installed, don't force another "apt-get install". That would |
| # prevent them from being auto-removed, if they ever become eligible for that. |
| # And as this script only needs the packages once, there is no good reason to |
| # introduce a hard dependency on things such as dchroot and debootstrap. |
| dep= |
| for i in dchroot debootstrap libwww-perl; do |
| [ -d /usr/share/doc/"$i" ] || dep="$dep $i" |
| done |
| [ -n "$dep" ] && sudo apt-get -y install $dep |
| sudo apt-get -y install schroot |
| |
| # Create directory for chroot |
| sudo mkdir -p /var/lib/chroot |
| |
| # Find chroot environments that can be installed with debootstrap |
| targets="$(cd /usr/share/debootstrap/scripts |
| ls | grep '^[a-z]*$')" |
| |
| # Ask user to pick one of the available targets |
| echo "The following targets are available to be installed in a chroot:" |
| j=1; for i in $targets; do |
| printf '%4d: %s\n' "$j" "$i" |
| j=$(($j+1)) |
| done |
| while :; do |
| printf "Which target would you like to install: " |
| read n |
| [ "$n" -gt 0 -a "$n" -lt "$j" ] >&/dev/null && break |
| done |
| j=1; for i in $targets; do |
| [ "$j" -eq "$n" ] && { distname="$i"; break; } |
| j=$(($j+1)) |
| done |
| echo |
| |
| # On x86-64, ask whether the user wants to install x86-32 or x86-64 |
| archflag= |
| arch= |
| if [ "$(uname -m)" = x86_64 ]; then |
| while :; do |
| echo "You are running a 64bit kernel. This allows you to install either a" |
| printf "32bit or a 64bit chroot environment. %s" \ |
| "Which one do you want (32, 64) " |
| read arch |
| [ "${arch}" == 32 -o "${arch}" == 64 ] && break |
| done |
| [ "${arch}" == 32 ] && archflag="--arch i386" || archflag="--arch amd64" |
| arch="${arch}bit" |
| echo |
| fi |
| target="${distname}${arch}" |
| |
| # Don't accidentally overwrite an existing installation |
| [ -d /var/lib/chroot/"${target}" ] && { |
| while :; do |
| echo "This chroot already exists on your machine." |
| if schroot -l --all-sessions 2>&1 | |
| sed 's/^session://' | |
| grep -qs "^${target%bit}-"; then |
| echo "And it appears to be in active use. Terminate all programs that" |
| echo "are currently using the chroot environment and then re-run this" |
| echo "script." |
| echo "If you still get an error message, you might have stale mounts" |
| echo "that you forgot to delete. You can always clean up mounts by" |
| echo "executing \"${target%bit} -c\"." |
| exit 1 |
| fi |
| echo "I can abort installation, I can overwrite the existing chroot," |
| echo "or I can delete the old one and then exit. What would you like to" |
| printf "do (a/o/d)? " |
| read choice |
| case "${choice}" in |
| a|A) exit 1;; |
| o|O) sudo rm -rf "/var/lib/chroot/${target}"; break;; |
| d|D) sudo rm -rf "/var/lib/chroot/${target}" \ |
| "/usr/local/bin/${target%bit}" \ |
| "/etc/schroot/mount-${target}" \ |
| "/etc/schroot/script-${target}" |
| sudo sed -ni '/^[[]'"${target%bit}"']$/,${ |
| :1;n;/^[[]/b2;b1;:2;p;n;b2};p' \ |
| "/etc/schroot/schroot.conf" |
| trap '' INT TERM QUIT HUP |
| trap '' EXIT |
| echo "Deleted!" |
| exit 0;; |
| esac |
| done |
| echo |
| } |
| sudo mkdir -p /var/lib/chroot/"${target}" |
| |
| # Offer to include additional standard repositories for Ubuntu-based chroots. |
| alt_repos= |
| grep -qs ubuntu.com /usr/share/debootstrap/scripts/"${distname}" && { |
| while :; do |
| echo "Would you like to add ${distname}-updates and ${distname}-security " |
| printf "to the chroot's sources.list (y/n)? " |
| read alt_repos |
| case "${alt_repos}" in |
| y|Y) |
| alt_repos="y" |
| break |
| ;; |
| n|N) |
| break |
| ;; |
| esac |
| done |
| echo |
| } |
| |
| # Check for non-standard file system mount points and ask the user whether |
| # they should be imported into the chroot environment |
| # We limit to the first 26 mount points that much some basic heuristics, |
| # because a) that allows us to enumerate choices with a single character, |
| # and b) if we find more than 26 mount points, then these are probably |
| # false-positives and something is very unusual about the system's |
| # configuration. No need to spam the user with even more information that |
| # is likely completely irrelevant. |
| if [ -z "${bind_mounts}" ]; then |
| mounts="$(awk '$2 != "/" && $2 !~ "^/boot" && $2 !~ "^/home" && |
| $2 !~ "^/media" && $2 !~ "^/run" && |
| ($3 ~ "ext[2-4]" || $3 == "reiserfs" || $3 == "btrfs" || |
| $3 == "xfs" || $3 == "jfs" || $3 == "u?msdos" || |
| $3 == "v?fat" || $3 == "hfs" || $3 == "ntfs" || |
| $3 ~ "nfs[4-9]?" || $3 == "smbfs" || $3 == "cifs") { |
| print $2 |
| }' /proc/mounts | |
| head -n26)" |
| if [ -n "${mounts}" ]; then |
| echo "You appear to have non-standard mount points that you" |
| echo "might want to import into the chroot environment:" |
| echo |
| sel= |
| while :; do |
| # Print a menu, listing all non-default mounts of local or network |
| # file systems. |
| j=1; for m in ${mounts}; do |
| c="$(printf $(printf '\\%03o' $((64+$j))))" |
| echo "$sel" | grep -qs $c && |
| state="mounted in chroot" || state="$(tput el)" |
| printf " $c) %-40s${state}\n" "$m" |
| j=$(($j+1)) |
| done |
| # Allow user to interactively (de-)select any of the entries |
| echo |
| printf "Select mount points that you want to be included or press %s" \ |
| "SPACE to continue" |
| c="$(getkey | tr a-z A-Z)" |
| [ "$c" == " " ] && { echo; echo; break; } |
| if [ -z "$c" ] || |
| [ "$c" '<' 'A' -o $(ord "$c") -gt $((64 + $(ord "$j"))) ]; then |
| # Invalid input, ring the console bell |
| tput bel |
| else |
| # Toggle the selection for the given entry |
| if echo "$sel" | grep -qs $c; then |
| sel="$(printf "$sel" | sed "s/$c//")" |
| else |
| sel="$sel$c" |
| fi |
| fi |
| # Reposition cursor to the top of the list of entries |
| tput cuu $(($j + 1)) |
| echo |
| done |
| fi |
| j=1; for m in ${mounts}; do |
| c="$(chr $(($j + 64)))" |
| if echo "$sel" | grep -qs $c; then |
| bind_mounts="${bind_mounts}$m $m none rw,bind 0 0 |
| " |
| fi |
| j=$(($j+1)) |
| done |
| fi |
| |
| # Remove stale entry from /etc/schroot/schroot.conf. Entries start |
| # with the target name in square brackets, followed by an arbitrary |
| # number of lines. The entry stops when either the end of file has |
| # been reached, or when the beginning of a new target is encountered. |
| # This means, we cannot easily match for a range of lines in |
| # "sed". Instead, we actually have to iterate over each line and check |
| # whether it is the beginning of a new entry. |
| sudo sed -ni '/^[[]'"${target%bit}"']$/,${:1;n;/^[[]/b2;b1;:2;p;n;b2};p' \ |
| /etc/schroot/schroot.conf |
| |
| # Download base system. This takes some time |
| if [ -z "${mirror}" ]; then |
| grep -qs ubuntu.com /usr/share/debootstrap/scripts/"${distname}" && |
| mirror="http://archive.ubuntu.com/ubuntu" || |
| mirror="http://ftp.us.debian.org/debian" |
| fi |
| |
| sudo ${http_proxy:+http_proxy="${http_proxy}"} debootstrap ${archflag} \ |
| "${distname}" "/var/lib/chroot/${target}" "$mirror" |
| |
| # Add new entry to /etc/schroot/schroot.conf |
| grep -qs ubuntu.com /usr/share/debootstrap/scripts/"${distname}" && |
| brand="Ubuntu" || brand="Debian" |
| if [ -z "${chroot_groups}" ]; then |
| chroot_groups="${admin},$(id -gn)" |
| fi |
| # Older versions of schroot wanted a "priority=" line, whereas recent |
| # versions deprecate "priority=" and warn if they see it. We don't have |
| # a good feature test, but scanning for the string "priority=" in the |
| # existing "schroot.conf" file is a good indication of what to do. |
| priority=$(grep -qs 'priority=' /etc/schroot/schroot.conf && |
| echo 'priority=3' || :) |
| sudo sh -c 'cat >>/etc/schroot/schroot.conf' <<EOF |
| [${target%bit}] |
| description=${brand} ${distname} ${arch} |
| type=directory |
| directory=/var/lib/chroot/${target} |
| users=root |
| groups=${chroot_groups} |
| root-groups=${chroot_groups} |
| personality=linux$([ "${arch}" != 64bit ] && echo 32) |
| script-config=script-${target} |
| ${priority} |
| |
| EOF |
| |
| # Set up a list of mount points that is specific to this |
| # chroot environment. |
| sed '/^FSTAB=/s,"[^"]*","/etc/schroot/mount-'"${target}"'",' \ |
| /etc/schroot/script-defaults | |
| sudo sh -c 'cat >/etc/schroot/script-'"${target}" |
| sed '\,^/home[/[:space:]],s/\([,[:space:]]\)bind[[:space:]]/\1rbind /' \ |
| /etc/schroot/mount-defaults | |
| sudo sh -c 'cat > /etc/schroot/mount-'"${target}" |
| |
| # Add the extra mount points that the user told us about |
| [ -n "${bind_mounts}" -a "${bind_mounts}" != "NONE" ] && |
| printf "${bind_mounts}" | |
| sudo sh -c 'cat >>/etc/schroot/mount-'"${target}" |
| |
| # If this system has a "/media" mountpoint, import it into the chroot |
| # environment. Most modern distributions use this mount point to |
| # automatically mount devices such as CDROMs, USB sticks, etc... |
| if [ -d /media ] && |
| ! grep -qs '^/media' /etc/schroot/mount-"${target}"; then |
| echo '/media /media none rw,rbind 0 0' | |
| sudo sh -c 'cat >>/etc/schroot/mount-'"${target}" |
| fi |
| |
| # Share /dev/shm and possibly /run/shm |
| grep -qs '^/dev/shm' /etc/schroot/mount-"${target}" || |
| echo '/dev/shm /dev/shm none rw,bind 0 0' | |
| sudo sh -c 'cat >>/etc/schroot/mount-'"${target}" |
| if [ -d "/var/lib/chroot/${target}/run" ] && |
| ! grep -qs '^/run/shm' /etc/schroot/mount-"${target}"; then |
| { [ -d /run ] && echo '/run/shm /run/shm none rw,bind 0 0' || |
| echo '/dev/shm /run/shm none rw,bind 0 0'; } | |
| sudo sh -c 'cat >>/etc/schroot/mount-'"${target}" |
| fi |
| |
| # Set up a special directory that changes contents depending on the target |
| # that is executing. |
| d="$(readlink -f "${HOME}/chroot" 2>/dev/null || echo "${HOME}/chroot")" |
| s="${d}/.${target}" |
| echo "${s} ${d} none rw,bind 0 0" | |
| sudo sh -c 'cat >>/etc/schroot/mount-'"${target}" |
| mkdir -p "${s}" |
| |
| # Install a helper script to launch commands in the chroot |
| sudo sh -c 'cat >/usr/local/bin/'"${target%bit}" <<'EOF' |
| #!/bin/bash |
| |
| chroot="${0##*/}" |
| |
| wrap() { |
| # Word-wrap the text passed-in on stdin. Optionally, on continuation lines |
| # insert the same number of spaces as the number of characters in the |
| # parameter(s) passed to this function. |
| # If the "fold" program cannot be found, or if the actual width of the |
| # terminal cannot be determined, this function doesn't attempt to do any |
| # wrapping. |
| local f="$(type -P fold)" |
| [ -z "${f}" ] && { cat; return; } |
| local c="$(stty -a </dev/tty 2>/dev/null | |
| sed 's/.*columns[[:space:]]*\([0-9]*\).*/\1/;t;d')" |
| [ -z "${c}" ] && { cat; return; } |
| local i="$(echo "$*"|sed 's/./ /g')" |
| local j="$(printf %s "${i}"|wc -c)" |
| if [ "${c}" -gt "${j}" ]; then |
| dd bs=1 count="${j}" 2>/dev/null |
| "${f}" -sw "$((${c}-${j}))" | sed '2,$s/^/'"${i}"'/' |
| else |
| "${f}" -sw "${c}" |
| fi |
| } |
| |
| help() { |
| echo "Usage ${0##*/} [-h|--help] [-c|--clean] [-C|--clean-all] [-l|--list] [--] args" | wrap "Usage ${0##*/} " |
| echo " help: print this message" | wrap " " |
| echo " list: list all known chroot environments" | wrap " " |
| echo " clean: remove all old chroot sessions for \"${chroot}\"" | wrap " " |
| echo " clean-all: remove all old chroot sessions for all environments" | wrap " " |
| exit 0 |
| } |
| |
| clean() { |
| local s t rc |
| rc=0 |
| for s in $(schroot -l --all-sessions); do |
| if [ -n "$1" ]; then |
| t="${s#session:}" |
| [ "${t#${chroot}-}" == "${t}" ] && continue |
| fi |
| if ls -l /proc/*/{cwd,fd} 2>/dev/null | |
| fgrep -qs "/var/lib/schroot/mount/${t}"; then |
| echo "Session \"${t}\" still has active users, not cleaning up" | wrap |
| rc=1 |
| continue |
| fi |
| sudo schroot -c "${s}" -e || rc=1 |
| done |
| exit ${rc} |
| } |
| |
| list() { |
| for e in $(schroot -l); do |
| e="${e#chroot:}" |
| [ -x "/usr/local/bin/${e}" ] || continue |
| if schroot -l --all-sessions 2>/dev/null | |
| sed 's/^session://' | |
| grep -qs "^${e}-"; then |
| echo "${e} is currently active" |
| else |
| echo "${e}" |
| fi |
| done |
| exit 0 |
| } |
| |
| while [ "$#" -ne 0 ]; do |
| case "$1" in |
| --) shift; break;; |
| -h|--help) shift; help;; |
| -l|--list) shift; list;; |
| -c|--clean) shift; clean "${chroot}";; |
| -C|--clean-all) shift; clean;; |
| *) break;; |
| esac |
| done |
| |
| session="$(schroot -c "${chroot}" -b)" |
| |
| if [ $# -eq 0 ]; then |
| schroot -c "${session}" -r -p |
| else |
| p="$1"; shift |
| schroot -c "${session}" -r -p "$p" -- "$@" |
| fi |
| rc=$? |
| |
| i=$(schroot -c "${session}" -r -p ls -- -id /proc/self/root/. | |
| awk '{ print $1 }') 2>/dev/null |
| while [ -n "$i" ]; do |
| pids=$(ls -id1 /proc/*/root/. 2>/dev/null | |
| sed -e 's,^[^0-9]*'$i'.*/\([1-9][0-9]*\)/.*$,\1, |
| t |
| d') >/dev/null 2>&1 |
| [ -z "$pids" ] && break |
| kill -9 $pids |
| done |
| schroot -c "${session}" -e |
| exit $rc |
| EOF |
| sudo chown root:root /usr/local/bin/"${target%bit}" |
| sudo chmod 755 /usr/local/bin/"${target%bit}" |
| |
| # Add the standard Ubuntu update repositories if requested. |
| [ "${alt_repos}" = "y" -a \ |
| -r "/var/lib/chroot/${target}/etc/apt/sources.list" ] && |
| sudo sed -i '/^deb .* [^ -]\+ main$/p |
| s/^\(deb .* [^ -]\+\) main/\1-security main/ |
| p |
| t1 |
| d |
| :1;s/-security main/-updates main/ |
| t |
| d' "/var/lib/chroot/${target}/etc/apt/sources.list" |
| |
| # Add a few more repositories to the chroot |
| [ -r "/var/lib/chroot/${target}/etc/apt/sources.list" ] && |
| sudo sed -i 's/ main$/ main restricted universe multiverse/' \ |
| "/var/lib/chroot/${target}/etc/apt/sources.list" |
| |
| # Add the Ubuntu "partner" repository, if available |
| if [ -r "/var/lib/chroot/${target}/etc/apt/sources.list" ] && |
| HEAD "http://archive.canonical.com/ubuntu/dists/${distname}/partner" \ |
| >&/dev/null; then |
| sudo sh -c ' |
| echo "deb http://archive.canonical.com/ubuntu" \ |
| "'"${distname}"' partner" \ |
| >>"/var/lib/chroot/'"${target}"'/etc/apt/sources.list"' |
| fi |
| |
| # Add source repositories, if the user requested we do so |
| [ "${add_srcs}" = "y" -a \ |
| -r "/var/lib/chroot/${target}/etc/apt/sources.list" ] && |
| sudo sed -i '/^deb[^-]/p |
| s/^deb\([^-]\)/deb-src\1/' \ |
| "/var/lib/chroot/${target}/etc/apt/sources.list" |
| |
| # Set apt proxy if host has set http_proxy |
| if [ -n "${http_proxy}" ]; then |
| sudo sh -c ' |
| echo "Acquire::http::proxy \"'"${http_proxy}"'\";" \ |
| >>"/var/lib/chroot/'"${target}"'/etc/apt/apt.conf"' |
| fi |
| |
| # Update packages |
| sudo "/usr/local/bin/${target%bit}" /bin/sh -c ' |
| apt-get update; apt-get -y dist-upgrade' || : |
| |
| # Install a couple of missing packages |
| for i in debian-keyring ubuntu-keyring locales sudo; do |
| [ -d "/var/lib/chroot/${target}/usr/share/doc/$i" ] || |
| sudo "/usr/local/bin/${target%bit}" apt-get -y install "$i" || : |
| done |
| |
| # Configure locales |
| sudo "/usr/local/bin/${target%bit}" /bin/sh -c ' |
| l='"${LANG:-en_US}"'; l="${l%%.*}" |
| [ -r /etc/locale.gen ] && |
| sed -i "s/^# \($l\)/\1/" /etc/locale.gen |
| locale-gen $LANG en_US en_US.UTF-8' || : |
| |
| # Enable multi-arch support, if available |
| sudo "/usr/local/bin/${target%bit}" dpkg --assert-multi-arch >&/dev/null && |
| [ -r "/var/lib/chroot/${target}/etc/apt/sources.list" ] && { |
| sudo sed -i 's/ / [arch=amd64,i386] /' \ |
| "/var/lib/chroot/${target}/etc/apt/sources.list" |
| [ -d /var/lib/chroot/${target}/etc/dpkg/dpkg.cfg.d/ ] && |
| echo foreign-architecture \ |
| $([ "${arch}" = "32bit" ] && echo amd64 || echo i386) | |
| sudo sh -c "cat >'/var/lib/chroot/${target}/etc/dpkg/dpkg.cfg.d/multiarch'" |
| } |
| |
| # Configure "sudo" package |
| sudo "/usr/local/bin/${target%bit}" /bin/sh -c ' |
| egrep -qs '"'^$(id -nu) '"' /etc/sudoers || |
| echo '"'$(id -nu) ALL=(ALL) ALL'"' >>/etc/sudoers' |
| |
| # Install a few more commonly used packages |
| sudo "/usr/local/bin/${target%bit}" apt-get -y install \ |
| autoconf automake1.9 dpkg-dev g++-multilib gcc-multilib gdb less libtool \ |
| strace |
| |
| # If running a 32bit environment on a 64bit machine, install a few binaries |
| # as 64bit. This is only done automatically if the chroot distro is the same as |
| # the host, otherwise there might be incompatibilities in build settings or |
| # runtime dependencies. The user can force it with the '-c' flag. |
| host_distro=$(grep -s DISTRIB_CODENAME /etc/lsb-release | \ |
| cut -d "=" -f 2) |
| if [ "${copy_64}" = "y" -o \ |
| "${host_distro}" = "${distname}" -a "${arch}" = 32bit ] && \ |
| file /bin/bash 2>/dev/null | grep -q x86-64; then |
| readlinepkg=$(sudo "/usr/local/bin/${target%bit}" sh -c \ |
| 'apt-cache search "lib64readline.\$" | sort | tail -n 1 | cut -d " " -f 1') |
| sudo "/usr/local/bin/${target%bit}" apt-get -y install \ |
| lib64expat1 lib64ncurses5 ${readlinepkg} lib64z1 |
| dep= |
| for i in binutils gdb; do |
| [ -d /usr/share/doc/"$i" ] || dep="$dep $i" |
| done |
| [ -n "$dep" ] && sudo apt-get -y install $dep |
| sudo mkdir -p "/var/lib/chroot/${target}/usr/local/lib/amd64" |
| for i in libbfd libpython; do |
| lib="$({ ldd /usr/bin/ld; ldd /usr/bin/gdb; } | |
| grep -s "$i" | awk '{ print $3 }')" |
| if [ -n "$lib" -a -r "$lib" ]; then |
| sudo cp "$lib" "/var/lib/chroot/${target}/usr/local/lib/amd64" |
| fi |
| done |
| for lib in libssl libcrypt; do |
| for path in /usr/lib /usr/lib/x86_64-linux-gnu; do |
| sudo cp $path/$lib* \ |
| "/var/lib/chroot/${target}/usr/local/lib/amd64/" >&/dev/null || : |
| done |
| done |
| for i in gdb ld; do |
| sudo cp /usr/bin/$i "/var/lib/chroot/${target}/usr/local/lib/amd64/" |
| sudo sh -c "cat >'/var/lib/chroot/${target}/usr/local/bin/$i'" <<EOF |
| #!/bin/sh |
| exec /lib64/ld-linux-x86-64.so.2 --library-path /usr/local/lib/amd64 \ |
| /usr/local/lib/amd64/$i "\$@" |
| EOF |
| sudo chmod 755 "/var/lib/chroot/${target}/usr/local/bin/$i" |
| done |
| fi |
| |
| |
| # If the install-build-deps.sh script can be found, offer to run it now |
| script="$(dirname $(readlink -f "$0"))/install-build-deps.sh" |
| if [ -x "${script}" ]; then |
| while :; do |
| echo |
| echo "If you plan on building Chrome inside of the new chroot environment," |
| echo "you now have to install the build dependencies. Do you want me to" |
| printf "start the script that does this for you (y/n)? " |
| read install_deps |
| case "${install_deps}" in |
| y|Y) |
| echo |
| # We prefer running the script in-place, but this might not be |
| # possible, if it lives on a network filesystem that denies |
| # access to root. |
| tmp_script= |
| if ! sudo /usr/local/bin/"${target%bit}" \ |
| sh -c "[ -x '${script}' ]" >&/dev/null; then |
| tmp_script="/tmp/${script##*/}" |
| cp "${script}" "${tmp_script}" |
| fi |
| # Some distributions automatically start an instance of the system- |
| # wide dbus daemon, cron daemon or of the logging daemon, when |
| # installing the Chrome build depencies. This prevents the chroot |
| # session from being closed. So, we always try to shut down any running |
| # instance of dbus and rsyslog. |
| sudo /usr/local/bin/"${target%bit}" sh -c "${script} --no-lib32; |
| rc=$?; |
| /etc/init.d/cron stop >/dev/null 2>&1 || :; |
| /etc/init.d/rsyslog stop >/dev/null 2>&1 || :; |
| /etc/init.d/dbus stop >/dev/null 2>&1 || :; |
| exit $rc" |
| rc=$? |
| [ -n "${tmp_script}" ] && rm -f "${tmp_script}" |
| [ $rc -ne 0 ] && exit $rc |
| break |
| ;; |
| n|N) |
| break |
| ;; |
| esac |
| done |
| echo |
| fi |
| |
| # Check whether ~/chroot is on a (slow) network file system and offer to |
| # relocate it. Also offer relocation, if the user appears to have multiple |
| # spindles (as indicated by "${bind_mount}" being non-empty). |
| # We only offer this option, if it doesn't look as if a chroot environment |
| # is currently active. Otherwise, relocation is unlikely to work and it |
| # can be difficult for the user to recover from the failed attempt to relocate |
| # the ~/chroot directory. |
| # We don't aim to solve this problem for every configuration, |
| # but try to help with the common cases. For more advanced configuration |
| # options, the user can always manually adjust things. |
| mkdir -p "${HOME}/chroot/" |
| if [ ! -h "${HOME}/chroot" ] && |
| ! egrep -qs '^[^[:space:]]*/chroot' /etc/fstab && |
| { [ -n "${bind_mounts}" -a "${bind_mounts}" != "NONE" ] || |
| is_network_drive "${HOME}/chroot"; } && |
| ! egrep -qs '/var/lib/[^/]*chroot/.*/chroot' /proc/mounts; then |
| echo "${HOME}/chroot is currently located on the same device as your" |
| echo "home directory." |
| echo "This might not be what you want. Do you want me to move it somewhere" |
| echo "else?" |
| # If the computer has multiple spindles, many users configure all or part of |
| # the secondary hard disk to be writable by the primary user of this machine. |
| # Make some reasonable effort to detect this type of configuration and |
| # then offer a good location for where to put the ~/chroot directory. |
| suggest= |
| for i in $(echo "${bind_mounts}"|cut -d ' ' -f 1); do |
| if [ -d "$i" -a -w "$i" -a \( ! -a "$i/chroot" -o -w "$i/chroot/." \) ] && |
| ! is_network_drive "$i"; then |
| suggest="$i" |
| else |
| for j in "$i/"*; do |
| if [ -d "$j" -a -w "$j" -a \ |
| \( ! -a "$j/chroot" -o -w "$j/chroot/." \) ] && |
| ! is_network_drive "$j"; then |
| suggest="$j" |
| else |
| for k in "$j/"*; do |
| if [ -d "$k" -a -w "$k" -a \ |
| \( ! -a "$k/chroot" -o -w "$k/chroot/." \) ] && |
| ! is_network_drive "$k"; then |
| suggest="$k" |
| break |
| fi |
| done |
| fi |
| [ -n "${suggest}" ] && break |
| done |
| fi |
| [ -n "${suggest}" ] && break |
| done |
| def_suggest="${HOME}" |
| if [ -n "${suggest}" ]; then |
| # For home directories that reside on network drives, make our suggestion |
| # the default option. For home directories that reside on a local drive, |
| # require that the user manually enters the new location. |
| if is_network_drive "${HOME}"; then |
| def_suggest="${suggest}" |
| else |
| echo "A good location would probably be in \"${suggest}\"" |
| fi |
| fi |
| while :; do |
| printf "Physical location [${def_suggest}]: " |
| read dir |
| [ -z "${dir}" ] && dir="${def_suggest}" |
| [ "${dir%%/}" == "${HOME%%/}" ] && break |
| if ! [ -d "${dir}" -a -w "${dir}" ] || |
| [ -a "${dir}/chroot" -a ! -w "${dir}/chroot/." ]; then |
| echo "Cannot write to ${dir}/chroot. Please try again" |
| else |
| mv "${HOME}/chroot" "${dir}/chroot" |
| ln -s "${dir}/chroot" "${HOME}/chroot" |
| for i in $(list_all_chroots); do |
| sudo "$i" mkdir -p "${dir}/chroot" |
| done |
| sudo sed -i "s,${HOME}/chroot,${dir}/chroot,g" /etc/schroot/mount-* |
| break |
| fi |
| done |
| fi |
| |
| # Clean up package files |
| sudo schroot -c "${target%bit}" -p -- apt-get clean |
| sudo apt-get clean |
| |
| trap '' INT TERM QUIT HUP |
| trap '' EXIT |
| |
| # Let the user know what we did |
| cat <<EOF |
| |
| |
| Successfully installed ${distname} ${arch} |
| |
| You can run programs inside of the chroot by invoking the |
| "/usr/local/bin/${target%bit}" command. |
| |
| This command can be used with arguments, in order to just run a single |
| program inside of the chroot environment (e.g. "${target%bit} make chrome") |
| or without arguments, in order to run an interactive shell session inside |
| of the chroot environment. |
| |
| If you need to run things as "root", you can use "sudo" (e.g. try |
| "sudo ${target%bit} apt-get update"). |
| |
| Your home directory is shared between the host and the chroot. But I |
| configured "${HOME}/chroot" to be private to the chroot environment. |
| You can use it for files that need to differ between environments. This |
| would be a good place to store binaries that you have built from your |
| source files. |
| |
| For Chrome, this probably means you want to make your "out" directory a |
| symbolic link that points somewhere inside of "${HOME}/chroot". |
| |
| You still need to run "gclient runhooks" whenever you switch from building |
| outside of the chroot to inside of the chroot. But you will find that you |
| don't have to repeatedly erase and then completely rebuild all your object |
| and binary files. |
| |
| EOF |
