#emacs: -*- mode: shell-script; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: nil -*-
#ex: set sts=4 ts=4 sw=4 et:
-# Depends: apt, python, wget
+# Depends: apt (assumed to be present), python, wget
# Recommends: netselect
# play safe
nd_aptenable_version=0.1
nd_key_id=0x2649A5A9
+nd_config_url=https://raw.githubusercontent.com/neurodebian/neurodebian/master/neurodebian.cfg
nd_config_file=/etc/neurodebian/neurodebian.cfg
nd_mirror_origin=http://neuro.debian.net/debian
nd_mirror_default=$nd_mirror_origin # or may be AWS?
-# To be set by cmdline args
-ae_release=
-ae_components=software,data
-ae_flavor=
-ae_mirror=best
-ae_suffix=
-ae_verbose=1
-ae_overwrite=
-ae_sources=
-ae_dry_run=
+# To be set by cmdline args or via env variables with prefix ND_AE_
+ae_release=${ND_AE_RELEASE:-}
+ae_components=${ND_AE_COMPONENTS:-software,data}
+ae_flavor=${ND_AE_FLAVOR:-}
+ae_mirror=${ND_AE_MIRROR:-best}
+ae_suffix=${ND_AE_SUFFIX:-}
+ae_verbose=${ND_AE_VERBOSE:-1}
+ae_overwrite=${ND_AE_OVERWRITE:-}
+ae_sources=${ND_AE_SOURCES:-}
+ae_install=${ND_AE_INSTALL:-}
+ae_update=${ND_AE_UPDATE:-1}
+ae_dry_run=${ND_AE_DRY_RUN:-}
+ae_defun_only=${ND_AE_DEFUN_ONLY:-} # mode to source this file as a "library"
ae_sudo=
exe_dir=$(dirname $0)
# - apt priority! (so we could avoid automagic upgrades etc)
# - multiarch setups
-ae_tempdir=$(mktemp -d)
-trap "rm -rf \"$ae_tempdir\"" TERM INT EXIT
+if [ -z "${ND_AE_TEMPDIR:-}" ]; then
+ ae_tempdir=$(mktemp -d)
+ trap "rm -rf \"$ae_tempdir\"" TERM INT EXIT
+else
+ # reuse the same directory/fetched configuration if was specified
+ ae_tempdir="${ND_AE_TEMPDIR:-}"
+fi
+
+nd_config_file_fresh="$ae_tempdir/neurodebian.cfg"
print_verbose()
{
level=$1; shift
if [ "$ae_verbose" -ge $level ]; then
# use stderr for printing within functions stdout of which might be used
- echo -e "I: $*" >&2
+ echo -n "I: " >&2
+ i=1; while [ $i -lt $level ]; do echo -ne " ">&2; i=$(($i+1)); done
+ echo -e "$*" >&2
fi
}
eval_dry()
{
if [ -z "$ae_dry_run" ]; then
- eval "$ae_sudo $@"
+ if eval "$ae_sudo $@" 1>|"$ae_tempdir/eval.log" 2>&1; then
+ rm "$ae_tempdir/eval.log"
+ else
+ error $? "Command $@ failed with exit code $?. Output was: `cat $ae_tempdir/eval.log`"
+ fi
else
- echo "DRY: $@"
+ echo "DRY: $@" >&2
fi
}
it is deduced from the apt-cache policy output, by taking repository
of Debian or Ubuntu origin with highest priority.
+ --print-releases
+ Return a list of releases present in NeuroDebian repository.
+
-f, --flavor=full|libre
Which flavor of the repository should be enabled:
libre -- Only main component, containing only DFSG-compliant content.
Which mirror to use. Could be a mirror code-name (as specified in
/etc/neurodebian/neurodebian.cfg), or a URL.
+ --print-mirrors
+ Return a list (with abbreviation) of known NeuroDebian mirrors.
+
--overwrite,
If apt file already present, it would not be overriden (by default).
Use this option to overwrite.
Do not perform any changes -- generated configurations and commands will
simply be printed to stdout
+ --install
+ If found absent, all necessary tools (wget, netselect) if available will
+ be apt-get installed
+
-v, --verbose
Enable additional progress messages. Could be used multiple times
get_neurodebian_cfg()
{
+ if [ -s "$nd_config_file_fresh" ]; then
+ print_verbose 3 "Config file $nd_config_file_fresh exists -- not fetching"
+ echo "$nd_config_file_fresh"
+ return 0
+ fi
# First we try to fetch the most recent version from the github
print_verbose 3 "Fetching config file from the github repository"
- cfgfile_temp="$ae_tempdir/neurodebian.cfg"
- wget -c -q -O$cfgfile_temp https://raw.githubusercontent.com/neurodebian/neurodebian/master/neurodebian.cfg \
- && { echo $cfgfile_temp; } \
- || { [ -e "$nd_config_file" ] && return "$nd_config_file"; }
- # if not -- should blow up
+ assure_command_from_package wget wget 1
+ wget --no-check-certificate -c -q -O$nd_config_file_fresh \
+ $nd_config_url \
+ && { echo "$nd_config_file_fresh"; } \
+ || { [ -e "$nd_config_file" ] \
+ && echo "$nd_config_file" \
+ || error 10 "Neither could fetch $nd_config_url, nor found $nd_config_file"; }
}
query_cfg_section()
{
config_file="$1"
section="$2"
+ print_verbose 3 "Querying config $config_file section $section"
+ assure_command_from_package python python-minimal 1
python -c "from ConfigParser import SafeConfigParser as SP; cfg = SP(); cfg.read('$config_file'); print('\n'.join([' '.join(x) for x in cfg.items('$section')]))"
}
{
nd_config=`get_neurodebian_cfg`
# $exe_dir/nd_querycfg -F" " --config-file="$nd_config" "mirrors" \
+ n=""
query_cfg_section "$nd_config" "mirrors" \
| while read mirror_name mirror_url; do
# verify that url is just a url
if echo "$mirror_url" | grep -v -e '^[a-z0-9:+]*://[-+_%.a-z0-9/]*$'; then
print_verbose 1 "Mirror $mirror_name has 'illegit' URL: $mirror_url. Skipping"
fi
- echo "$mirror_name $mirror_url"
+ [ -z "$n" ] || echo -ne "${ND_IFS:-\n}"; n+=1
+ echo -n "$mirror_name $mirror_url"
+ done
+}
+
+get_releases()
+{
+ nd_config=`get_neurodebian_cfg`
+ n=""
+ query_cfg_section "$nd_config" "release files" \
+ | while read release_name release_url; do
+ # verify that url is just a url
+ if [ "$release_name" = "data" ]; then
+ # skip data
+ continue
+ fi
+ [ -z "$n" ] || echo -ne "${ND_IFS:-\n}"; n+=1
+ echo -n "$release_name"
done
}
+get_package_version()
+{
+ pkg_version=$(apt-cache policy "$1" | awk '/^ *Installed:/{print $2;}')
+ [ "$pkg_version" != '(none)' ] || pkg_version=''
+ echo "$pkg_version"
+}
+
netselect_mirror() {
# select "closest" mirror according to netselect.
print_verbose 2 "Selecting the 'best' mirror using netselect"
- if ! which netselect >/dev/null; then
+ assure_command_from_package netselect
+ if ! which netselect >&/dev/null; then
print_verbose 1 "netselect (apt-get install netselect) needed to select the 'best' mirror was not found"
print_verbose 1 "Selecting the default repository: $nd_mirror_default"
echo $nd_mirror_default
else
- get_mirrors | awk '{print $2;}' | $ae_sudo xargs netselect -D -s 1 | awk '{print $2;}'
+ # squeeze version doesn't have -D yet to force output of the URL not IP, but for our mirrors ATM it shouldn't matter
+ netselect_opts="-s 1"
+ netselect_version="$(get_package_version netselect)"
+ if dpkg --compare-versions "$netselect_version" ge 0.3.ds1-17; then
+ netselect_opts+=" -D"
+ fi
+ if dpkg --compare-versions "$netselect_version" ge 0.3.ds1-15; then
+ netselect_opts+=" -I"
+ fi
+ best_mirror=$(get_mirrors | awk '{print $2;}' | eval $ae_sudo xargs netselect $netselect_opts | awk '{print $2;}')
+ print_verbose 2 "Best mirror: $best_mirror"
+ echo $best_mirror
fi
}
-get_mirror_url() {
+get_mirror_url()
+{
# given mirror alias -- find its url
url=$(get_mirrors | awk "/^$1 /{print \$2;}")
if [ -z "$url" ]; then
# or
# get_apt_policy NeuroDebian
suites="$1"
- apt-cache policy | grep -B1 -e "o=\(${suites//,/\\|}\)" | tr '\n' ' ' | sed -e 's, -- ,\n,g' | grep -v -e '-\(updates\|security\)' | sort -nr
+ $ae_sudo apt-cache policy | grep -B1 -e "o=\(${suites//,/\\|}\)" | tr '\n' ' ' | sed -e 's, -- ,\n,g' | grep -v -e '-\(updates\|security\)' | sort -nr
}
-include_component()
+is_component_included()
{
echo "$ae_components" | tr ',' '\n' | grep -q "^$1\$"
}
+is_sources_enabled()
+{
+ apt-cache showsrc apt >&/dev/null && echo 1 || echo 0
+}
+
+assure_command_from_package()
+{
+ cmd=$1
+ pkg=${2:-$cmd}
+ fail=${3:-}
+
+ which "$cmd" >&/dev/null && return 0
+
+ # if absent -- check availability of the package
+ apt_cache=$(LANG=C apt-cache policy "$pkg" 2>&1)
+ if [[ "$apt_cache" =~ "Unable to locate package" ]] || [[ "$apt_cache" =~ "Candidate: (none)" ]]; then
+ print_verbose 1 "Package $pkg providing command $cmd is N/A. Skipping"
+ return 10;
+ fi
+ if echo "$apt_cache" | grep -q '^\s*\*\*\*'; then
+ print_verbose 1 "WARNING -- command $cmd is N/A but package $pkg is claimed to be installed"
+ [ -z "$fail" ] && return 11 || error $fail "Command $cmd is required to proceed"
+ fi
+ if [ "$ae_install" = "1" ]; then
+ print_verbose 1 "Installing $pkg package to get $cmd command"
+ eval_dry DEBIAN_FRONTEND=noninteractive apt-get install -y "$pkg"
+ return
+ else
+ print_verbose 1 "Command $cmd (from package $pkg) is N/A."
+ print_verbose 1 "Use with --install to get all necessary packages installed automatically"
+ [ -z "$fail" ] && return 12 || error $fail "Command $cmd is required to proceed"
+ fi
+}
+
+# if it was requested -- return without doing anything
+[ -z "$ae_defun_only" ] || return
#
# Commandline options handling
# Note that we use `"$@"' to let each command-line parameter expand to a
# separate word. The quotes around `$@' are essential!
# We need CLOPTS as the `eval set --' would nuke the return value of getopt.
-CLOPTS=`getopt -o h,r:,m:,f:,c:,q,v,n --long help,version,quiet,verbose,mirror:,release:,flavor:,components:,suffix:,overwrite,sources,no-sources,dry-run,print-mirrors,print-best-mirror -n 'nd-aptenable' -- "$@"`
+CLOPTS=`getopt -o h,r:,m:,f:,c:,q,v,n --long help,version,quiet,verbose,mirror:,release:,flavor:,components:,suffix:,overwrite,sources,no-sources,install,dry-run,do-not-update,print-releases,print-mirrors,print-best-mirror -n 'nd-aptenable' -- "$@"`
if [ $? != 0 ] ; then
error 2 "Problem with parsing cmdline. Terminating..."
-m|--mirror) shift; ae_mirror="$1"; shift;;
--print-mirrors) get_mirrors; exit 0;;
--print-best-mirror) netselect_mirror; exit 0;;
+ --print-releases) get_releases; exit 0;;
-n|--dry-run) ae_dry_run=1; shift;;
--suffix) shift; ae_suffix="$1"; shift;;
--overwrite) ae_overwrite="$1"; shift;;
+ --do-not-update) ae_update=""; shift;;
--sources) ae_sources=1; shift;;
--no-sources) ae_sources=0; shift;;
+ --install) ae_install=1; shift;;
-q|--quiet) ae_verbose=0; shift;;
-v|--verbose) ae_verbose=$(($ae_verbose+1)); shift;;
-h|--help) print_help; exit 0;;
#
# knowing mirror is not necessary for -devel available only from the main site
-if include_component software || include_component data; then
+if is_component_included software || is_component_included data; then
# for now just use default
if [ -z "$ae_mirror" ]; then # none specified
ae_mirror_url=$nd_mirror_origin
esac
if [ -z "$ae_sources" ]; then
- apt-cache showsrc apt >&/dev/null && ae_sources=1 || ae_sources=0
+ ae_sources=$(is_sources_enabled)
fi
if [ $ae_sources -eq 0 ]; then
apt_list=
-if include_component software; then
+if is_component_included software; then
apt_list+="
# NeuroDebian software repository
deb $ae_mirror_url $ae_release main $apt_flavor
"
fi
-if include_component data; then
+if is_component_included data; then
apt_list+="
# NeuroDebian data repository
deb $ae_mirror_url data main $apt_flavor
"
fi
-if include_component devel; then
+if is_component_included devel; then
apt_list+="
# NeuroDebian -devel repository
deb http://neuro.debian.net/debian-devel $ae_release main $apt_flavor
eval_dry apt-key adv --recv-keys --keyserver pgp.mit.edu $nd_key_id
fi
+
#
# Finalizing (apt-get update etc)
#
-print_verbose 1 "Updating APT listings, might take a few minutes"
-if [ -z "$ae_dry_run" ]; then
- apt_logfile="$ae_tempdir/apt.log"
- $ae_sudo apt-get update 1>"$apt_logfile" 2>&1 \
- && rm -f "$apt_logfile" \
- || {
- cat "$apt_logfile"
- error 5 "E: Update failed with exit code $? (above output logged into $apt_logfile)."
- }
-else
- eval_dry apt-get update
+if [ ! -z "$ae_update" ]; then
+ print_verbose 1 "Updating APT listings, might take a few minutes"
+ if [ -z "$ae_dry_run" ]; then
+ apt_logfile="$ae_tempdir/apt.log"
+ $ae_sudo apt-get update 1>"$apt_logfile" 2>&1 \
+ && rm -f "$apt_logfile" \
+ || {
+ apt_log=$(cat "$apt_logfile")
+ echo "$apt_log"
+ if echo "$apt_log" | grep -q "Malformed line [0-9]* in source list $ae_output_file"; then
+ $ae_sudo mv "${ae_output_file}" "${ae_output_file}-failed.disabled"
+ error 6 "Update failed to possible errorneous APT listing file produced by this script. Generated $ae_output_file renamed to ${ae_output_file}-failed.disabled to not interfer"
+ fi
+ error 5 "Update failed with exit code $? (above output logged into $apt_logfile)."
+ }
+ else
+ eval_dry apt-get update
+ fi
fi
if [ "$ae_verbose" -ge 2 ]; then
projects / neurodebian.git / blobdiff