Initial Dever 0.0.1

2026-11-03 03:32:07 +00:00
commit 81233d098c
@@ -0,0 +1,106 @@
+#!/usr/bin/env bash
+# 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。
+set -euo pipefail
+package=$(cd -- "$(dirname -- "$0")/.." && pwd -P)
+tools="$package/toolchain"
+root=$(cd "$package/../.." && pwd -P)
+[[ ! -f $tools/ready ]] || exit 0
+exec 9>"$root/.prepare.lock"
+previous=
+until flock -w 1 9; do
+    status='Waiting for Dever environment preparation...'
+    if [[ -f $tools/status ]]; then read -r status < "$tools/status" || true; fi
+    if [[ $status != "$previous" ]]; then printf '%s\n' "$status" >&2; previous=$status; fi
+done
+[[ ! -f $tools/ready ]] || exit 0
+exec 3>&2
+exec >"$tools/prepare.log" 2>&1
+stage=
+rust_stage=
+phase='Preparing Dever environment'
+finish() {
+    local code=$?
+    if (( code )); then
+        printf 'Failed: %s (exit %s). Details: %s\n' "$phase" "$code" "$tools/prepare.log" > "$tools/status"
+        cat "$tools/status" >&3
+    fi
+    if [[ -n $stage ]]; then rm -rf -- "$stage"; fi
+    if [[ -n $rust_stage ]]; then rm -rf -- "$rust_stage"; fi
+}
+trap finish EXIT
+trap 'exit 130' INT
+trap 'exit 143' TERM
+progress() {
+    phase=$1
+    printf '%s\n' "$phase" > "$tools/status"
+    printf '%s\n' "$phase" >&3
+}
+read -r rust_version native_id < "$tools/online"
+mapfile -t sources < "$tools/sources"
+release_url=${sources[0]}
+rust_dist=${sources[1]}
+triple=x86_64-unknown-linux-gnu
+rust_root="$root/toolchains/rust-$rust_version-$triple"
+native_root="$root/toolchains/native-$native_id"
+downloads="$root/cache/downloads"
+mkdir -p "$downloads"
+stage=$(mktemp -d "$root/.prepare.XXXXXX")
+transfers=()
+archives=()
+queue() {
+    local url=$1 name=$2
+    archives+=("$name")
+    if (( ${#transfers[@]} )); then transfers+=(--next); fi
+    transfers+=(--fail --location --silent --show-error --retry 2 --connect-timeout 15
+        --speed-limit 1024 --speed-time 60 --continue-at - --output "$downloads/$name.part" "$url")
+    transfers+=(--next --fail --location --silent --show-error --retry 2 --connect-timeout 15
+        --output "$downloads/$name.sha256" "$url.sha256")
+}
+native_archive="dever-native-linux-x86_64-$native_id.tar.xz"
+if [[ ! -d $native_root ]]; then queue "$release_url/$native_archive" "$native_archive"; fi
+if [[ ! -d $rust_root ]]; then
+    for component in rustc rust-std cargo; do
+        name="$component-$rust_version-$triple.tar.xz"
+        queue "$rust_dist/dist/$name" "$name"
+    done
+fi
+if (( ${#archives[@]} )); then
+    progress 'Downloading Dever build environment...'
+    curl --parallel --parallel-immediate --parallel-max 3 --fail-early "${transfers[@]}"
+    progress 'Verifying Dever build environment...'
+    for name in "${archives[@]}"; do
+        read -r expected remainder < "$downloads/$name.sha256"
+        if [[ $name == "$native_archive" && $expected != "$native_id" ]] ||
+            ! printf '%s  %s\n' "$expected" "$downloads/$name.part" | sha256sum --check --status; then
+            rm -f -- "$downloads/$name.part" "$downloads/$name.sha256"
+            echo "Checksum mismatch: $name" >&2
+            exit 1
+        fi
+    done
+fi
+progress 'Installing Dever build environment...'
+if [[ ! -d $rust_root ]]; then
+    # 官方脚本不支持含空格的 prefix；先在独占临时目录安装，再原子发布。
+    rust_stage=$(mktemp -d /tmp/dever-toolchain.XXXXXX)
+    for component in rustc rust-std cargo; do
+        name="$component-$rust_version-$triple"
+        tar -xJf "$downloads/$name.tar.xz.part" -C "$rust_stage"
+        bash "$rust_stage/$name/install.sh" --prefix="$rust_stage/toolchain" --disable-ldconfig
+        rm -rf -- "$rust_stage/$name"
+    done
+    mv "$rust_stage/toolchain" "$stage/rust"
+    mv "$stage/rust" "$rust_root"
+fi
+if [[ ! -d $native_root ]]; then
+    tar -xJf "$downloads/$native_archive.part" -C "$stage"
+    mv "$stage/native-tools" "$native_root"
+fi
+"$tools/bin/rustc" --version
+progress 'Preparing Dever project dependencies...'
+"$tools/bin/cargo" fetch --locked --target "$triple" --manifest-path "$tools/project/Cargo.toml"
+for name in "$native_archive" "rustc-$rust_version-$triple.tar.xz" \
+    "rust-std-$rust_version-$triple.tar.xz" "cargo-$rust_version-$triple.tar.xz"; do
+    rm -f -- "$downloads/$name.part" "$downloads/$name.sha256"
+done
+touch "$tools/ready"
+progress 'Dever build environment is ready.'