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vaultwarden_ynh/scripts/ynh_docker_image_extract
2022-10-19 23:06:23 +02:00

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#!/bin/bash
#
# This script pulls and extracts all files from an image in Docker Hub.
#
# usage: ynh_docker_image_extract --dest_dir=dest_dir --image_spec=image_spec [--os_arch_variant=os_arch_variant]
# | arg: -d, --dest_dir= - Directory where to setup sources
# | arg: -i, --image_spec= - Image specification
# | arg: -o, --os_arch_variant= - OS, architecture and variant seen as OS/ARCH on Docker Hub default:linux/$YNH_ARCH.
#
# Pull and extract all files from the 'hello-world' image tagged 'latest'.
# example: ynh_docker_image_extract --dest_dir="dest_dir" --image_spec="hello-world:latest"
#
# Same as above; tag defaults to 'latest'.
# example: ynh_docker_image_extract --dest_dir="dest_dir" --image_spec="hello-world"
#
# Same as above; tag defaults from 'latest' for a specific OS/ARCH.
# example: ynh_docker_image_extract --dest_dir="dest_dir" --image_spec="hello-world "--os_arch_variant=="linux/arm/v6"
#
# Same as above, but specify the image by digest, don't require the specific OS/ARCH.
# example: ynh_docker_image_extract --dest_dir="dest_dir" --image_spec="hello-world:sha256:90659bf80b44ce6be8234e6ff90a1ac34acbeb826903b02cfa0da11c82cbc042"
#
# This helper will pulls and extracts all files from the image $image_spec in Docker Hub.
#
# The helper will:
# - Download `$image_spec` and extract it to `$dest_dir`.
# - Patches named `sources/patches/${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 *.*.* or higher.
ynh_docker_image_extract() {
# Declare an array to define the options of this helper.
local legacy_args=dio
local -A args_array=([d]=dest_dir= [i]=image_spec= [o]=os_arch_variant=)
local dest_dir
local image_spec
local os_arch_variant
# Manage arguments with getopts
ynh_handle_getopts_args "$@"
os_arch_variant="${os_arch_variant:-"linux/$YNH_ARCH"}"
# Extract source into the app dir
mkdir --parents "$dest_dir"
if [ -n "${final_path:-}" ] && [ "$dest_dir" == "$final_path" ]; then
_ynh_apply_default_permissions $dest_dir
fi
tempdir="$(mktemp -d)"
pushd $tempdir
git init -q
git remote add -f -t main origin https://github.com/jjlin/docker-image-extract.git > /dev/null 2>&1
git checkout -q -b main origin/main
./docker-image-extract -p $os_arch_variant -o $dest_dir $image_spec 2>&1
popd
rm -rf $tempdir
# Apply patches
if [ -d "$YNH_APP_BASEDIR/sources/patches/" ]; then
local patches_folder=$(realpath $YNH_APP_BASEDIR/sources/patches/)
if (($(find $patches_folder -type f -name "${image_spec}-*.patch" 2>/dev/null | wc --lines) > "0")); then
(
cd "$dest_dir"
for p in $patches_folder/${image_spec}-*.patch; do
echo $p
patch --strip=1 <$p
done
) || ynh_die --message="Unable to apply patches"
fi
fi
# Add supplementary files
if test -e "$YNH_APP_BASEDIR/sources/extra_files/${image_spec}"; then
cp --archive $YNH_APP_BASEDIR/sources/extra_files/$image_spec/. "$dest_dir"
fi
}