GA: publish shotover lib to crates.io (#1106)

Co-authored-by: Conor <conor.brosnan@instaclustr.com>

.github/workflows/release.yaml

@@ -7,8 +7,17 @@ on:
  - "v*"
 
 jobs:
+ prepublish-check:
+ name: "Check that the project is releaseable"
+ runs-on: ubuntu-latest
+ steps:
+ - uses: actions/checkout@v3
+ - name: Run checks
+ run: shotover-proxy/build/is_releasable.sh
+
  publish-image:
  name: "Publish Docker Image to Docker Hub"
+ needs: prepublish-check
  runs-on: ubuntu-latest
  steps:
  - name: Login to Docker Hub
@@ -25,6 +34,7 @@ jobs:
 
  publish-binary:
  name: "Publish Binary to GitHub"
+ needs: prepublish-check
  runs-on: ubuntu-20.04
  steps:
  - uses: actions/checkout@v3
@@ -39,3 +49,18 @@ jobs:
  prerelease: false
  files: |
  *.tar.gz
+
+ publish-crates-io:
+ name: "Publish to crates.io"
+ needs: prepublish-check
+ runs-on: ubuntu-20.04
+ steps:
+ - uses: actions/checkout@v3
+ - name: Install ubuntu packages
+ run: shotover-proxy/build/install_ubuntu_packages.sh
+ - name: Publish
+ run: |
+ cd shotover
+ cargo publish
+ env:
+ CARGO_REGISTRY_TOKEN: ${{ secrets.CRATES_TOKEN }}

shotover-proxy/build/is_releasable.sh

@@ -0,0 +1,43 @@
+#!/usr/bin/env bash
+
+set -e
+set -u
+
+TAG=$(git tag --points-at HEAD)
+
+if [ -z "$TAG" ];
+then
+ echo "Failed: The current commit has no git tags"
+ exit 1
+fi
+
+if [[ $TAG == *$'\n'* ]];
+then
+ echo "Failed: multiple git tags are on the latest commit, but only one tag is allowed"
+ echo "$TAG"
+ exit 1
+fi
+
+TAG_VERSION=$(echo $TAG | sed -e "s/^v//")
+
+if [ -z "$TAG_VERSION" ];
+then
+ echo "Failed: git tag not valid: '$TAG'"
+ exit 1
+fi
+
+BIN_VERSION="$(cargo metadata --format-version 1 --offline --no-deps | jq -c -M -r '.packages[] | select(.name == "shotover-proxy") | .version')"
+if [ "$TAG_VERSION" != "$BIN_VERSION" ];
+then
+ echo "Failed: git tag '$TAG_VERSION' did not match shotover-proxy version '$BIN_VERSION'"
+ exit 1
+fi
+
+LIB_VERSION="$(cargo metadata --format-version 1 --offline --no-deps | jq -c -M -r '.packages[] | select(.name == "shotover") | .version')"
+if [ "$TAG_VERSION" != "$LIB_VERSION" ];
+then
+ echo "Failed: git tag '$TAG_VERSION' did not match shotover version '$LIB_VERSION'"
+ exit 1
+fi
+
+echo "Shotover repository is ready for publishing"