#!/usr/bin/env bash

set -euxo pipefail

# Function for displaying help info
help_info() {
  echo "
Usage: ${0##*/} [options]
Build a release .tar.gz for Linux.

Options:
  -h    Display this help and exit.
  "
}

while getopts 'h' flag
do
    case "${flag}" in
        h)
           help_info
           exit 0
           ;;
    esac
done

export ZED_BUNDLE=true

channel=$(<crates/zed/RELEASE_CHANNEL)

version="$(cargo metadata --no-deps --manifest-path crates/zed/Cargo.toml --offline --format-version=1 | jq -r '.packages | map(select(.name == "zed"))[0].version')"
# Set RELEASE_VERSION so it's compiled into GPUI and it knows about the version.
export RELEASE_VERSION="${version}"

commit=$(git rev-parse HEAD | cut -c 1-7)

version_info=$(rustc --version --verbose)
host_line=$(echo "$version_info" | grep host)
target_triple=${host_line#*: }

# Build binary in release mode
cargo build --release --target "${target_triple}" --package zed --package cli

# Strip the binary of all debug symbols
# Later, we probably want to do something like this: https://github.com/GabrielMajeri/separate-symbols
strip "target/${target_triple}/release/Zed"
strip "target/${target_triple}/release/cli"

suffix=""
if [ "$channel" != "stable" ]; then
  suffix="-$channel"
fi

# Move everything that should end up in the final package
# into a temp directory.
temp_dir=$(mktemp -d)
zed_dir="${temp_dir}/zed$suffix.app"

# Binary
mkdir -p "${zed_dir}/bin"
cp "target/${target_triple}/release/Zed" "${zed_dir}/bin/zed"
cp "target/${target_triple}/release/cli" "${zed_dir}/bin/cli"

# Icons
mkdir -p "${zed_dir}/share/icons/hicolor/512x512/apps"
cp "crates/zed/resources/app-icon$suffix.png" "${zed_dir}/share/icons/hicolor/512x512/apps/zed.png"
mkdir -p "${zed_dir}/share/icons/hicolor/1024x1024/apps"
cp "crates/zed/resources/app-icon$suffix@2x.png" "${zed_dir}/share/icons/hicolor/1024x1024/apps/zed.png"

# .desktop
mkdir -p "${zed_dir}/share/applications"
cp "crates/zed/resources/zed.desktop" "${zed_dir}/share/applications/zed$suffix.desktop"
if [[ "$channel" == "preview" ]]; then
    sed -i "s|Name=Zed|Name=Zed Preview|g" "${zed_dir}/share/applications/zed$suffix.desktop"
elif [[ "$channel" == "nightly" ]]; then
    sed -i "s|Name=Zed|Name=Zed Nightly|g" "${zed_dir}/share/applications/zed$suffix.desktop"
fi

# Licenses
cp "assets/licenses.md" "${zed_dir}/licenses.md"

# Create archive out of everything that's in the temp directory
target="linux-$(uname -m)"

if [[ "$channel" == "nightly" ]]; then
  archive="zed-${target}.tar.gz"
elif  [[ "$channel" == "dev" ]]; then
  archive="zed-${commit}-${target}.tar.gz"
else
  archive="zed-${target}.tar.gz"
fi

rm -rf "${archive}"
tar -czvf target/release/$archive -C ${temp_dir} "zed$suffix.app"