Build legacy binaries with latest Go

.github/setup_legacy_go.sh

@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+
+VERSION="1.23.6"
+
+mkdir -p $HOME/go
+cd $HOME/go
+wget "https://dl.google.com/go/go${VERSION}.linux-amd64.tar.gz"
+tar -xzf "go${VERSION}.linux-amd64.tar.gz"
+mv go go_legacy
+cd go_legacy
+
+# modify from https://github.com/restic/restic/issues/4636#issuecomment-1896455557
+# this patch file only works on golang1.23.x
+# that means after golang1.24 release it must be changed
+# see: https://github.com/MetaCubeX/go/commits/release-branch.go1.23/
+# revert:
+# 693def151adff1af707d82d28f55dba81ceb08e1: "crypto/rand,runtime: switch RtlGenRandom for ProcessPrng"
+# 7c1157f9544922e96945196b47b95664b1e39108: "net: remove sysSocket fallback for Windows 7"
+# 48042aa09c2f878c4faa576948b07fe625c4707a: "syscall: remove Windows 7 console handle workaround"
+# a17d959debdb04cd550016a3501dd09d50cd62e7: "runtime: always use LoadLibraryEx to load system libraries"
+
+curl https://github.com/MetaCubeX/go/commit/9ac42137ef6730e8b7daca016ece831297a1d75b.diff | patch --verbose -p 1
+curl https://github.com/MetaCubeX/go/commit/21290de8a4c91408de7c2b5b68757b1e90af49dd.diff | patch --verbose -p 1
+curl https://github.com/MetaCubeX/go/commit/6a31d3fa8e47ddabc10bd97bff10d9a85f4cfb76.diff | patch --verbose -p 1
+curl https://github.com/MetaCubeX/go/commit/69e2eed6dd0f6d815ebf15797761c13f31213dd6.diff | patch --verbose -p 1

.github/workflows/build.yml

@@ -94,7 +94,6 @@ jobs:
           - { os: windows, arch: arm64 }
 
           - { os: darwin, arch: amd64 }
-          - { os: darwin, arch: amd64, legacy_go: true }
           - { os: darwin, arch: arm64 }
 
           - { os: android, arch: arm64, ndk: "aarch64-linux-android21" }
@@ -106,16 +105,28 @@ jobs:
         uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
         with:
           fetch-depth: 0
-      - name: Setup Go
-        if: matrix.legacy_go
-        uses: actions/setup-go@v5
-        with:
-          go-version: ~1.20
       - name: Setup Go
         if: ${{ ! matrix.legacy_go }}
         uses: actions/setup-go@v5
         with:
           go-version: ^1.24
+      - name: Cache Legacy Go
+        if: matrix.require_legacy_go
+        id: cache-legacy-go
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/go/go_legacy
+          key: go_legacy_1236
+      - name: Setup Legacy Go
+        if: matrix.legacy_go && steps.cache-legacy-go.outputs.cache-hit != 'true'
+        run: |-
+          .github/setup_legacy_go.sh
+      - name: Setup Legacy Go 2
+        if: matrix.legacy_go
+        run: |-
+          echo "PATH=$HOME/go/go_legacy/bin:$PATH" >> $GITHUB_ENV
+          echo "GOROOT=$HOME/go/go_legacy" >> $GITHUB_ENV
       - name: Setup Android NDK
         if: matrix.os == 'android'
         uses: nttld/setup-ndk@v1
@@ -129,10 +140,7 @@ jobs:
       - name: Set build tags
         run: |
           set -xeuo pipefail
-          TAGS='with_gvisor,with_quic,with_dhcp,with_wireguard,with_utls,with_reality_server,with_acme,with_clash_api'
-          if [ ! '${{ matrix.legacy_go }}' = 'true' ]; then
-            TAGS="${TAGS},with_ech"
-          fi
+          TAGS='with_gvisor,with_quic,with_dhcp,with_wireguard,with_utls,with_reality_server,with_acme,with_clash_api,with_tailscale'
           echo "BUILD_TAGS=${TAGS}" >> "${GITHUB_ENV}"
       - name: Build
         if: matrix.os != 'android'

.goreleaser.yaml

@@ -51,12 +51,11 @@ builds:
       - with_clash_api
     env:
       - CGO_ENABLED=0
-      - GOROOT={{ .Env.GOPATH }}/go1.20.14
-    tool: "{{ .Env.GOPATH }}/go1.20.14/bin/go"
+      - GOROOT={{ .Env.GOPATH }}/go_legacy
+    tool: "{{ .Env.GOPATH }}/go_legacy/bin/go"
     targets:
       - windows_amd64_v1
       - windows_386
-      - darwin_amd64_v1
   - id: android
     <<: *template
     env: