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vaultwarden_ynh/scripts/ynh_docker_image_extract
2022-09-07 07:15:40 +02:00

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#!/bin/bash
# Download, check integrity, uncompress and patch the source from app.src
#
# usage: ynh_setup_source_docker --dest_dir=dest_dir [--source_id=source_id] [--keep="file1 file2"]
# | arg: -d, --dest_dir= - Directory where to setup sources
# | arg: -s, --source_id= - Name of the source, defaults to `app`
# | arg: -k, --keep= - Space-separated list of files/folders that will be backup/restored in $dest_dir, such as a config file you don't want to overwrite. For example 'conf.json secrets.json logs/'
#
# This helper will read `conf/${source_id}.src`, download and install the sources.
#
# The src file need to contains:
# ```
# SOURCE_URL=Address to download the app archive
# SOURCE_SUM=Control sum
# # (Optional) Program to check the integrity (sha256sum, md5sum...). Default: sha256
# SOURCE_SUM_PRG=sha256
# # (Optional) Archive format. Default: tar.gz
# SOURCE_FORMAT=tar.gz
# # (Optional) Put false if sources are directly in the archive root. Default: true
# # Instead of true, SOURCE_IN_SUBDIR could be the number of sub directories to remove.
# SOURCE_IN_SUBDIR=false
# # (Optionnal) Name of the local archive (offline setup support). Default: ${src_id}.${src_format}
# SOURCE_FILENAME=example.tar.gz
# # (Optional) If it set as false don't extract the source. Default: true
# # (Useful to get a debian package or a python wheel.)
# SOURCE_EXTRACT=(true|false)
# # (Optionnal) Name of the plateform. Default: "linux/$YNH_ARCH"
# SOURCE_FILENAME=linux/arm64/v8
# ```
#
# The helper will:
# - Check if there is a local source archive in `/opt/yunohost-apps-src/$APP_ID/$SOURCE_FILENAME`
# - Download `$SOURCE_URL` if there is no local archive
# - Check the integrity with `$SOURCE_SUM_PRG -c --status`
# - Uncompress the archive to `$dest_dir`.
# - If `$SOURCE_IN_SUBDIR` is true, the first level directory of the archive will be removed.
# - If `$SOURCE_IN_SUBDIR` is a numeric value, the N first level directories will be removed.
# - Patches named `sources/patches/${src_id}-*.patch` will be applied to `$dest_dir`
# - Extra files in `sources/extra_files/$src_id` will be copied to dest_dir
#
# Requires YunoHost version 2.6.4 or higher.
ynh_setup_source_docker() {
# Declare an array to define the options of this helper.
local legacy_args=dsk
local -A args_array=([d]=dest_dir= [s]=source_id= [k]=keep=)
local dest_dir
local source_id
local keep
# Manage arguments with getopts
ynh_handle_getopts_args "$@"
source_id="${source_id:-app}"
keep="${keep:-}"
local src_file_path="$YNH_APP_BASEDIR/conf/${source_id}.src"
# Load value from configuration file (see above for a small doc about this file
# format)
local src_url=$(grep 'SOURCE_URL=' "$src_file_path" | cut --delimiter='=' --fields=2-)
local src_sum=$(grep 'SOURCE_SUM=' "$src_file_path" | cut --delimiter='=' --fields=2-)
local src_sumprg=$(grep 'SOURCE_SUM_PRG=' "$src_file_path" | cut --delimiter='=' --fields=2-)
local src_format=$(grep 'SOURCE_FORMAT=' "$src_file_path" | cut --delimiter='=' --fields=2-)
local src_in_subdir=$(grep 'SOURCE_IN_SUBDIR=' "$src_file_path" | cut --delimiter='=' --fields=2-)
local src_filename=$(grep 'SOURCE_FILENAME=' "$src_file_path" | cut --delimiter='=' --fields=2-)
local src_extract=$(grep 'SOURCE_EXTRACT=' "$src_file_path" | cut --delimiter='=' --fields=2-)
local src_plateform=$(grep 'SOURCE_PLATFORM=' "$src_file_path" | cut --delimiter='=' --fields=2-)
# Default value
src_sumprg=${src_sumprg:-sha256sum}
src_in_subdir=${src_in_subdir:-true}
src_format=${src_format:-tar.gz}
src_format=$(echo "$src_format" | tr '[:upper:]' '[:lower:]')
src_extract=${src_extract:-true}
if [ "$src_filename" = "" ]; then
src_filename="${source_id}.${src_format}"
fi
# (Unused?) mecanism where one can have the file in a special local cache to not have to download it...
local local_src="/opt/yunohost-apps-src/${YNH_APP_ID}/${src_filename}"
mkdir -p /var/cache/yunohost/download/${YNH_APP_ID}/
src_filename="/var/cache/yunohost/download/${YNH_APP_ID}/${src_filename}"
if [ "$src_format" = "docker" ]; then
src_plateform="${src_plateform:-"linux/$YNH_ARCH"}"
else
if test -e "$local_src"; then
cp $local_src $src_filename
else
[ -n "$src_url" ] || ynh_die "Couldn't parse SOURCE_URL from $src_file_path ?"
# NB. we have to declare the var as local first,
# otherwise 'local foo=$(false) || echo 'pwet'" does'nt work
# because local always return 0 ...
local out
# Timeout option is here to enforce the timeout on dns query and tcp connect (c.f. man wget)
out=$(wget --tries 3 --no-dns-cache --timeout 900 --no-verbose --output-document=$src_filename $src_url 2>&1) \
|| ynh_die --message="$out"
fi
# Check the control sum
echo "${src_sum} ${src_filename}" | ${src_sumprg} --check --status \
|| ynh_die --message="Corrupt source"
fi
# Keep files to be backup/restored at the end of the helper
# Assuming $dest_dir already exists
rm -rf /var/cache/yunohost/files_to_keep_during_setup_source/
if [ -n "$keep" ] && [ -e "$dest_dir" ]; then
local keep_dir=/var/cache/yunohost/files_to_keep_during_setup_source/${YNH_APP_ID}
mkdir -p $keep_dir
local stuff_to_keep
for stuff_to_keep in $keep; do
if [ -e "$dest_dir/$stuff_to_keep" ]; then
mkdir --parents "$(dirname "$keep_dir/$stuff_to_keep")"
cp --archive "$dest_dir/$stuff_to_keep" "$keep_dir/$stuff_to_keep"
fi
done
fi
# Extract source into the app dir
mkdir --parents "$dest_dir"
if [ -n "${final_path:-}" ] && [ "$dest_dir" == "$final_path" ]; then
_ynh_apply_default_permissions $dest_dir
fi
if ! "$src_extract"; then
mv $src_filename $dest_dir
elif [ "$src_format" = "docker" ]; then
$YNH_APP_BASEDIR/script/vendor/docker-image-extract -p $src_plateform -o $src_filename $src_url 2>&1
mv $src_filename $dest_dir
ynh_secure_remove --file="$src_filename"
elif [ "$src_format" = "zip" ]; then
# Zip format
# Using of a temp directory, because unzip doesn't manage --strip-components
if $src_in_subdir; then
local tmp_dir=$(mktemp --directory)
unzip -quo $src_filename -d "$tmp_dir"
cp --archive $tmp_dir/*/. "$dest_dir"
ynh_secure_remove --file="$tmp_dir"
else
unzip -quo $src_filename -d "$dest_dir"
fi
ynh_secure_remove --file="$src_filename"
else
local strip=""
if [ "$src_in_subdir" != "false" ]; then
if [ "$src_in_subdir" == "true" ]; then
local sub_dirs=1
else
local sub_dirs="$src_in_subdir"
fi
strip="--strip-components $sub_dirs"
fi
if [[ "$src_format" =~ ^tar.gz|tar.bz2|tar.xz$ ]]; then
tar --extract --file=$src_filename --directory="$dest_dir" $strip
else
ynh_die --message="Archive format unrecognized."
fi
ynh_secure_remove --file="$src_filename"
fi
# Apply patches
if [ -d "$YNH_APP_BASEDIR/sources/patches/" ]; then
local patches_folder=$(realpath $YNH_APP_BASEDIR/sources/patches/)
if (($(find $patches_folder -type f -name "${source_id}-*.patch" 2>/dev/null | wc --lines) > "0")); then
(
cd "$dest_dir"
for p in $patches_folder/${source_id}-*.patch; do
echo $p
patch --strip=1 <$p
done
) || ynh_die --message="Unable to apply patches"
fi
fi
# Add supplementary files
if test -e "$YNH_APP_BASEDIR/sources/extra_files/${source_id}"; then
cp --archive $YNH_APP_BASEDIR/sources/extra_files/$source_id/. "$dest_dir"
fi
# Keep files to be backup/restored at the end of the helper
# Assuming $dest_dir already exists
if [ -n "$keep" ]; then
local keep_dir=/var/cache/yunohost/files_to_keep_during_setup_source/${YNH_APP_ID}
local stuff_to_keep
for stuff_to_keep in $keep; do
if [ -e "$keep_dir/$stuff_to_keep" ]; then
mkdir --parents "$(dirname "$dest_dir/$stuff_to_keep")"
cp --archive "$keep_dir/$stuff_to_keep" "$dest_dir/$stuff_to_keep"
fi
done
fi
rm -rf /var/cache/yunohost/files_to_keep_during_setup_source/
}