coder/scripts/build_go_slim.sh

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#!/usr/bin/env bash
# This script builds multiple "slim" Go binaries for Coder with the given OS and
# architecture combinations. This wraps ./build_go_matrix.sh.
#
# Usage: ./build_go_slim.sh [--version 1.2.3-devel+abcdef] [--output dist/] [--compress 22] os1:arch1,arch2 os2:arch1 os1:arch3
#
# If no OS:arch combinations are provided, nothing will happen and no error will
# be returned. If no version is specified, defaults to the version from
# ./version.sh
#
# The --output parameter differs from ./build_go_matrix.sh, in that it does not
# accept variables such as `{os}` and `{arch}` and only accepts a directory
# ending with `/`.
#
# The built binaries are additionally copied to the site output directory so
# they can be packaged into non-slim binaries correctly.
#
# When the --compress <level> parameter is provided, the binaries in site/bin
# will be compressed using zstd into site/bin/coder.tar.zst, this helps reduce
# final binary size significantly.
set -euo pipefail
shopt -s nullglob
# shellcheck source=scripts/lib.sh
source "$(dirname "${BASH_SOURCE[0]}")/lib.sh"
version=""
output_path=""
compress=0
args="$(getopt -o "" -l version:,output:,compress: -- "$@")"
eval set -- "$args"
while true; do
case "$1" in
--version)
version="$2"
shift 2
;;
--output)
output_path="$2"
shift 2
;;
--compress)
compress="$2"
shift 2
;;
--)
shift
break
;;
*)
error "Unrecognized option: $1"
;;
esac
done
# Check dependencies
dependencies go
if [[ $compress != 0 ]]; then
dependencies openssl tar zstd
if [[ $compress != [0-9]* ]] || [[ $compress -gt 22 ]] || [[ $compress -lt 1 ]]; then
error "Invalid value for compress, must in in the range of [1, 22]"
fi
fi
# Remove the "v" prefix.
version="${version#v}"
if [[ "$version" == "" ]]; then
version="$(execrelative ./version.sh)"
fi
# Verify the output path.
if [[ "$output_path" == "" ]]; then
# Input paths are relative, so we don't cdroot at the top, but for this case
# we want it to be relative to the root.
cdroot
mkdir -p dist
output_path="$(realpath "dist/coder-slim_{version}_{os}_{arch}")"
elif [[ "$output_path" != */ ]] || [[ "$output_path" == *"{"* ]]; then
error "The output path '$output_path' cannot contain variables and must end with a slash"
else
mkdir -p "$output_path"
output_path="$(realpath "${output_path}coder-slim_{version}_{os}_{arch}")"
fi
./scripts/build_go_matrix.sh \
--version "$version" \
--output "$output_path" \
--slim \
"$@"
cdroot
dest_dir="./site/out/bin"
mkdir -p "$dest_dir"
dest_dir="$(realpath "$dest_dir")"
# Copy the binaries to the site directory.
cd "$(dirname "$output_path")"
for f in ./coder-slim_*; do
# Remove ./ prefix
name="${f#./}"
# Remove "-slim_$version"
truncated="${name//-slim_$version/}"
# Replace underscores with hyphens
hyphenated="${truncated//_/-}"
dest="$dest_dir/$hyphenated"
cp "$f" "$dest"
done
if [[ $compress != 0 ]]; then
pushd "$dest_dir"
sha_file=coder.sha1
sha_dest="$dest_dir/$sha_file"
log "--- Generating SHA1 for coder-slim binaries ($sha_dest)"
openssl dgst -r -sha1 coder-* | tee $sha_file
echo "$sha_dest"
log
log
tar_name=coder.tar.zst
tar_dest="$dest_dir/$tar_name"
log "--- Compressing coder-slim binaries using zstd level $compress ($tar_dest)"
tar cf coder.tar $sha_file coder-*
rm coder-*
zstd --force --ultra --long -"${compress}" --rm --no-progress coder.tar -o $tar_name
echo "$tar_dest"
log
log
popd
fi