107 lines
4.2 KiB
Bash
107 lines
4.2 KiB
Bash
#!/usr/bin/env bash
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# 在线包的唯一环境准备入口；安装器后台启动，编译入口等待同一把锁。
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set -euo pipefail
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package=$(cd -- "$(dirname -- "$0")/.." && pwd -P)
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tools="$package/toolchain"
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root=$(cd "$package/../.." && pwd -P)
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[[ ! -f $tools/ready ]] || exit 0
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exec 9>"$root/.prepare.lock"
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previous=
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until flock -w 1 9; do
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status='Waiting for Dever environment preparation...'
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if [[ -f $tools/status ]]; then read -r status < "$tools/status" || true; fi
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if [[ $status != "$previous" ]]; then printf '%s\n' "$status" >&2; previous=$status; fi
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done
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[[ ! -f $tools/ready ]] || exit 0
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exec 3>&2
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exec >"$tools/prepare.log" 2>&1
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stage=
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rust_stage=
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phase='Preparing Dever environment'
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finish() {
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local code=$?
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if (( code )); then
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printf 'Failed: %s (exit %s). Details: %s\n' "$phase" "$code" "$tools/prepare.log" > "$tools/status"
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cat "$tools/status" >&3
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fi
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if [[ -n $stage ]]; then rm -rf -- "$stage"; fi
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if [[ -n $rust_stage ]]; then rm -rf -- "$rust_stage"; fi
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}
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trap finish EXIT
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trap 'exit 130' INT
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trap 'exit 143' TERM
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progress() {
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phase=$1
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printf '%s\n' "$phase" > "$tools/status"
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printf '%s\n' "$phase" >&3
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}
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read -r rust_version native_id < "$tools/online"
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mapfile -t sources < "$tools/sources"
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release_url=${sources[0]}
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rust_dist=${sources[1]}
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triple=x86_64-unknown-linux-gnu
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rust_root="$root/toolchains/rust-$rust_version-$triple"
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native_root="$root/toolchains/native-$native_id"
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downloads="$root/cache/downloads"
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mkdir -p "$downloads"
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stage=$(mktemp -d "$root/.prepare.XXXXXX")
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transfers=()
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archives=()
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queue() {
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local url=$1 name=$2
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archives+=("$name")
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if (( ${#transfers[@]} )); then transfers+=(--next); fi
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transfers+=(--fail --location --silent --show-error --retry 2 --connect-timeout 15
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--speed-limit 1024 --speed-time 60 --continue-at - --output "$downloads/$name.part" "$url")
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transfers+=(--next --fail --location --silent --show-error --retry 2 --connect-timeout 15
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--output "$downloads/$name.sha256" "$url.sha256")
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}
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native_archive="dever-native-linux-x86_64-$native_id.tar.xz"
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if [[ ! -d $native_root ]]; then queue "$release_url/$native_archive" "$native_archive"; fi
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if [[ ! -d $rust_root ]]; then
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for component in rustc rust-std cargo; do
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name="$component-$rust_version-$triple.tar.xz"
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queue "$rust_dist/dist/$name" "$name"
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done
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fi
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if (( ${#archives[@]} )); then
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progress 'Downloading Dever build environment...'
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curl --parallel --parallel-immediate --parallel-max 3 --fail-early "${transfers[@]}"
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progress 'Verifying Dever build environment...'
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for name in "${archives[@]}"; do
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read -r expected remainder < "$downloads/$name.sha256"
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if [[ $name == "$native_archive" && $expected != "$native_id" ]] ||
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! printf '%s %s\n' "$expected" "$downloads/$name.part" | sha256sum --check --status; then
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rm -f -- "$downloads/$name.part" "$downloads/$name.sha256"
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echo "Checksum mismatch: $name" >&2
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exit 1
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fi
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done
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fi
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progress 'Installing Dever build environment...'
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if [[ ! -d $rust_root ]]; then
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# 官方脚本不支持含空格的 prefix；先在独占临时目录安装，再原子发布。
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rust_stage=$(mktemp -d /tmp/dever-toolchain.XXXXXX)
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for component in rustc rust-std cargo; do
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name="$component-$rust_version-$triple"
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tar -xJf "$downloads/$name.tar.xz.part" -C "$rust_stage"
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bash "$rust_stage/$name/install.sh" --prefix="$rust_stage/toolchain" --disable-ldconfig
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rm -rf -- "$rust_stage/$name"
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done
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mv "$rust_stage/toolchain" "$stage/rust"
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mv "$stage/rust" "$rust_root"
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fi
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if [[ ! -d $native_root ]]; then
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tar -xJf "$downloads/$native_archive.part" -C "$stage"
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mv "$stage/native-tools" "$native_root"
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fi
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"$tools/bin/rustc" --version
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progress 'Preparing Dever project dependencies...'
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"$tools/bin/cargo" fetch --locked --target "$triple" --manifest-path "$tools/project/Cargo.toml"
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for name in "$native_archive" "rustc-$rust_version-$triple.tar.xz" \
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"rust-std-$rust_version-$triple.tar.xz" "cargo-$rust_version-$triple.tar.xz"; do
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rm -f -- "$downloads/$name.part" "$downloads/$name.sha256"
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done
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touch "$tools/ready"
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progress 'Dever build environment is ready.'
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