From 39a499fc01569d4fc63e726e46f1e3e54ba4b35e Mon Sep 17 00:00:00 2001
From: Jannik Stehle <j.stehle@opencloud.eu>
Date: Wed, 16 Apr 2025 07:22:56 +0200
Subject: [PATCH] ci: make release plugin compatible with stable branch
 workflow

Introduces the 2 configs `getLatestTag` and `useLatestRelease` to make the `ready-release-go` plugin fully compatible with our stable branch workflow.
---
 release-config.ts | 171 +++++++++++++++++++++++++++++++++-------------
 1 file changed, 123 insertions(+), 48 deletions(-)

diff --git a/release-config.ts b/release-config.ts
index bc45a1dd1f..692fca1700 100644
--- a/release-config.ts
+++ b/release-config.ts
@@ -1,49 +1,124 @@
 export default {
-    changeTypes: [
-        {
-            title: '💥 Breaking changes',
-            labels: ['breaking', 'Type:Breaking-Change'],
-            bump: 'major',
-            weight: 3
-        },
-        {
-            title: '🔒 Security',
-            labels: ['security', 'Type:Security'],
-            bump: 'patch',
-            weight: 2
-        },
-        {
-            title: '✨ Features',
-            labels: ['feature', 'Type:Feature'],
-            bump: 'minor',
-            weight: 1
-        },
-        {
-            title: '📈 Enhancement',
-            labels: ['enhancement', 'refactor', 'Type:Enhancement'],
-            bump: 'minor'
-        },
-        {
-            title: '🐛 Bug Fixes',
-            labels: ['bug', 'Type:Bug'],
-            bump: 'patch'
-        },
-        {
-            title: '📚 Documentation',
-            labels: ['docs', 'documentation', 'Type:Documentation'],
-            bump: 'patch'
-        },
-        {
-            title: '✅ Tests',
-            labels: ['test', 'tests', 'Type:Test'],
-            bump: 'patch'
-        },
-        {
-            title: '📦️ Dependencies',
-            labels: ['dependency', 'dependencies', 'Type:Dependencies'],
-            bump: 'patch',
-            weight: -1
-        }
-    ],
-    useVersionPrefixV: true,
-}
+  changeTypes: [
+    {
+      title: "💥 Breaking changes",
+      labels: ["breaking", "Type:Breaking-Change"],
+      bump: "major",
+      weight: 3,
+    },
+    {
+      title: "🔒 Security",
+      labels: ["security", "Type:Security"],
+      bump: "patch",
+      weight: 2,
+    },
+    {
+      title: "✨ Features",
+      labels: ["feature", "Type:Feature"],
+      bump: "minor",
+      weight: 1,
+    },
+    {
+      title: "📈 Enhancement",
+      labels: ["enhancement", "refactor", "Type:Enhancement"],
+      bump: "minor",
+    },
+    {
+      title: "🐛 Bug Fixes",
+      labels: ["bug", "Type:Bug"],
+      bump: "patch",
+    },
+    {
+      title: "📚 Documentation",
+      labels: ["docs", "documentation", "Type:Documentation"],
+      bump: "patch",
+    },
+    {
+      title: "✅ Tests",
+      labels: ["test", "tests", "Type:Test"],
+      bump: "patch",
+    },
+    {
+      title: "📦️ Dependencies",
+      labels: ["dependency", "dependencies", "Type:Dependencies"],
+      bump: "patch",
+      weight: -1,
+    },
+  ],
+  useVersionPrefixV: true,
+  getLatestTag: ({ exec }) => {
+    // the plugin uses the latest tag to determine the next version
+    // and the changes that are included in the upcoming release.
+    const branch = getBranch(exec);
+    let tags = getTags(exec);
+
+    if (branch.startsWith("stable-")) {
+      const [_, majorAndMinor] = branch.split("-");
+      // we only care about tags that are within the range of the current stable branch.
+      // e.g. if the branch is stable-1.2, we only care about tags that are v1.2.x.
+      const matchingTags = tags.filter((t) =>
+        t.startsWith(`v${majorAndMinor}`)
+      );
+
+      if (matchingTags.length) {
+        tags = matchingTags;
+      }
+    }
+
+    return tags.pop() || "v0.0.0";
+  },
+  useLatestRelease: ({ exec, nextVersion }) => {
+    // check if the release should be marked as latest release on GitHub.
+    const tags = getTags(exec);
+    const latestTag = tags.pop() || "v0.0.0";
+    return compareVersions(latestTag, nextVersion) === -1;
+  },
+};
+
+const parseVersion = (tag: string) => {
+  const version = tag.startsWith("v") ? tag.slice(1) : tag;
+  const [main, pre] = version.split("-");
+  const [major, minor, patch] = main.split(".").map(Number);
+  return { major, minor, patch, pre };
+};
+
+const getBranch = (exec: any): string => {
+  return exec("git rev-parse --abbrev-ref HEAD", {
+    silent: true,
+  }).stdout.trim();
+};
+
+const getTags = (exec: any) => {
+  exec("git fetch --tags", { silent: true });
+  const tagsOutput = exec("git tag", { silent: true }).stdout.trim();
+  const tags: string[] = tagsOutput ? tagsOutput.split("\n") : [];
+  return tags.filter((tag) => tag.startsWith("v")).sort(compareVersions);
+};
+
+const compareVersions = (a: string, b: string) => {
+  const va = parseVersion(a);
+  const vb = parseVersion(b);
+
+  if (va.major !== vb.major) {
+    return va.major - vb.major;
+  }
+  if (va.minor !== vb.minor) {
+    return va.minor - vb.minor;
+  }
+  if (va.patch !== vb.patch) {
+    return va.patch - vb.patch;
+  }
+
+  if (va.pre && !vb.pre) {
+    return -1;
+  }
+  if (!va.pre && vb.pre) {
+    return 1;
+  }
+
+  if (va.pre && vb.pre) {
+    return va.pre.localeCompare(vb.pre);
+  }
+
+  return 0;
+};