Merge pull request #1 from cashapp/gotip

Build and release gotip.

.github/workflows/gotip.yml

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+on:
+  push:
+    branches:
+      - gotip
+  schedule:
+    # * is a special character in YAML so you have to quote this string
+    - cron:  '0 12 * * *'
+jobs:
+  gotip:
+    name: Build Go Tip
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        arch: [arm64, amd64]
+        os: [linux, darwin]
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+      - name: Init Hermit
+        run: ./bin/hermit env --raw >> $GITHUB_ENV
+      - name: Build Go
+        run: make GOOS=${{ matrix.os }} GOARCH=${{ matrix.arch }} -C gotip
+      - name: Upload Release
+        uses: ncipollo/release-action@v1
+        with:
+          tag: gotip
+          allowUpdates: true
+          artifacts: "gotip/go-*.tbz"
+          token: ${{ secrets.GITHUB_TOKEN }}

.gitignore

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+gotip/goroot
+gotip/go-*

bin/.go@latest.pkg

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+hermit

bin/.make-4.3.pkg

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+hermit

bin/go

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+.go@latest.pkg

bin/go-main-stubs

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+#!/bin/bash
+#
+#
+# This script generates stub scripts for every Go "main" package in this
+# repository. These stubs execute the corresponding main package via "go run".
+#
+
+set -euo pipefail
+
+usage() {
+  echo "$(basename $0) [-c] -- create or clean Go main stub scripts"
+  exit 1
+}
+
+bindir="$(dirname $0)"
+root="$(dirname "${bindir}")"
+
+clean() {
+  grep -l "^# go-main-stubs stub script" "${bindir}"/* | grep -v bin/go-main-stubs | xargs rm || true
+}
+
+while getopts ":hc" arg; do
+  case $arg in
+    c)
+      echo "Cleaning old stubs"
+      clean
+      exit 0
+      ;;
+    h | *)
+      usage
+      exit 0
+      ;;
+  esac
+done
+
+clean
+
+echo "Creating Go main stubs in ${bindir}"
+
+echo -n .
+
+for main in $(cd "${root}" && go list -f '{{if eq "main" .Name}}{{.ImportPath}}{{end}}' ./...); do
+  stub_script="${bindir}/$(basename $main)"
+  cat << EOF > ${stub_script}
+#!/bin/bash
+# go-main-stubs stub script
+exec "\$(dirname \$0)/go" run $main "\$@"
+EOF
+  chmod +x "${stub_script}"
+  echo -n .
+done
+echo

bin/gofmt

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+.go@latest.pkg

bin/make

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+.make-4.3.pkg

gotip/Makefile

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+export GOOS ?= $(shell go env GOOS)
+export GOARCH ?= $(shell go env GOARCH)
+
+BOOTSTRAP = go-$(GOOS)-$(GOARCH)-bootstrap
+OUT = go-tip-$(GOOS)-$(GOARCH).tbz
+
+gotip: clean
+	if test -d goroot; then \
+		cd goroot && git pull; \
+	else \
+		git clone --depth=1 https://go.googlesource.com/go goroot; \
+	fi
+	cd goroot/src && ./bootstrap.bash
+	mv $(BOOTSTRAP).tbz $(OUT)
+
+clean:
+	rm -rf $(BOOTSTRAP).tbz $(BOOTSTRAP)