feat: create tag name regex option for more precise changelogs

README.MD

@@ -1,4 +1,4 @@
-[![version](https://img.shields.io/badge/version-1.0.4-yellow.svg)](https://semver.org)
+[![version](https://img.shields.io/badge/version-1.0.5-yellow.svg)](https://semver.org)
 
 ### :pencil2: :page_with_curl: Conventional Commit Changelog Generator (GitHub Action)
 
@@ -9,17 +9,18 @@ The changelog is accessible as action output available to other actions via [out
 ## Example usage
 
 ```yaml
-uses: Helmisek/conventional-changelog-generator@v1.0.4
+uses: Helmisek/conventional-changelog-generator@v1.0.5
 with:
   token: ${{ secrets.GITHUB_TOKEN }}
 ```
 
 ## Inputs
 
-| Name            | Description                      | Required | Example                       |
-| --------------- | -------------------------------- | -------- | ----------------------------- |
-| `commit-types`  | Commit -> changelog mapping      | Yes      | `feat:Features,bug:Bug Fixes` |
-| `template-path` | Path to a custom template to use | No       | `CHANGELOG.tpl.md`            |
+| Name            | Description                          | Required | Example                       |
+| --------------- | ------------------------------------ | -------- | ----------------------------- |
+| `commit-types`  | Commit -> changelog mapping          | Yes      | `feat:Features,bug:Bug Fixes` |
+| `template-path` | Path to a custom template to use     | No       | `CHANGELOG.tpl.md`            |
+| `tag-regex`     | A custom regex to filter versions by | No       | `internal`                    |
 
 ## Outputs
 

action.yml

@@ -9,7 +9,10 @@ inputs:
     required: true
   template-path:
     description: Changelog template
-    required: true
+    required: false
+  tag-regex:
+    description: Specific regex to filter tags by and to version just between these (useful for SemVer labels)
+    required: false
 outputs:
   changelog:
     description: Generated changelog for the latest push version tag

dist/index.js

@@ -5995,6 +5995,7 @@ const workspace = process.env.GITHUB_WORKSPACE;
 const token = core.getInput("repo-token", { required: true });
 const commitTypes = core.getInput("commit-types", { required: true });
 const templateFilePath = core.getInput("template-path", { required: false });
+const tagRegex = core.getInput("tag-regex", { required: false });
 
 if (!token) {
   throw Error('"token" input is missing!');
@@ -6010,6 +6011,7 @@ module.exports = {
   commitTypes,
   workspace,
   templateFilePath,
+  tagRegex,
 };
 
 
@@ -6161,7 +6163,7 @@ module.exports = generator;
 const core = __webpack_require__(6024);
 const compareVersions = __webpack_require__(7597);
 const octokit = __webpack_require__(7323);
-const { repo, owner } = __webpack_require__(348);
+const { repo, owner, tagRegex } = __webpack_require__(348);
 const rangedCommits = __webpack_require__(2259);
 
 /**
@@ -6194,8 +6196,9 @@ const releaseCommitRange = async (releaseTags) => {
   const currentReleaseIndex = 0;
   const toSHA = releases[currentReleaseIndex].commit.sha;
   core.info(`current release sha: "${toSHA}"`);
-  const previousReleaseIndex = releases.findIndex(
-    (release, index) => index > currentReleaseIndex
+  const previousReleaseIndex = findPreviousReleaseIndex(
+    releases,
+    currentReleaseIndex
   );
   const fromSHA = await findBaseSha(previousReleaseIndex, releases, toSHA);
   core.info(`previous release sha: "${fromSHA}"`);
@@ -6205,6 +6208,22 @@ const releaseCommitRange = async (releaseTags) => {
   };
 };
 
+/***
+ * If there is a `tagRegex` option set then perform a RegExp search while filtering release.
+ * Otherwise just find a release with higher index than `currentReleaseIndex`.
+ */
+function findPreviousReleaseIndex(releases, currentReleaseIndex) {
+  if (tagRegex == null) {
+    return releases.findIndex((_, index) => index > currentReleaseIndex);
+  } else {
+    const versionRegExp = new RegExp(`${tagRegex}`, "g");
+    return releases.findIndex(
+      (release, index) =>
+        index > currentReleaseIndex && release.name.match(versionRegExp) != null
+    );
+  }
+}
+
 /**
  * If there is no previous release (thus meaning there is only a 1 tag in the repository) then
  * set the base sha to the first commit in the repository.

src/context.js

@@ -25,6 +25,7 @@ const workspace = process.env.GITHUB_WORKSPACE;
 const token = core.getInput("repo-token", { required: true });
 const commitTypes = core.getInput("commit-types", { required: true });
 const templateFilePath = core.getInput("template-path", { required: false });
+const tagRegex = core.getInput("tag-regex", { required: false });
 
 if (!token) {
   throw Error('"token" input is missing!');
@@ -40,4 +41,5 @@ module.exports = {
   commitTypes,
   workspace,
   templateFilePath,
+  tagRegex,
 };

src/history-parser.js

@@ -1,7 +1,7 @@
 const core = require("@actions/core");
 const compareVersions = require("compare-versions");
 const octokit = require("./octokit");
-const { repo, owner } = require("./context");
+const { repo, owner, tagRegex } = require("./context");
 const rangedCommits = require("./commits");
 
 /**
@@ -34,8 +34,9 @@ const releaseCommitRange = async (releaseTags) => {
   const currentReleaseIndex = 0;
   const toSHA = releases[currentReleaseIndex].commit.sha;
   core.info(`current release sha: "${toSHA}"`);
-  const previousReleaseIndex = releases.findIndex(
-    (release, index) => index > currentReleaseIndex
+  const previousReleaseIndex = findPreviousReleaseIndex(
+    releases,
+    currentReleaseIndex
   );
   const fromSHA = await findBaseSha(previousReleaseIndex, releases, toSHA);
   core.info(`previous release sha: "${fromSHA}"`);
@@ -45,6 +46,22 @@ const releaseCommitRange = async (releaseTags) => {
   };
 };
 
+/***
+ * If there is a `tagRegex` option set then perform a RegExp search while filtering release.
+ * Otherwise just find a release with higher index than `currentReleaseIndex`.
+ */
+function findPreviousReleaseIndex(releases, currentReleaseIndex) {
+  if (tagRegex == null) {
+    return releases.findIndex((_, index) => index > currentReleaseIndex);
+  } else {
+    const versionRegExp = new RegExp(`${tagRegex}`, "g");
+    return releases.findIndex(
+      (release, index) =>
+        index > currentReleaseIndex && release.name.match(versionRegExp) != null
+    );
+  }
+}
+
 /**
  * If there is no previous release (thus meaning there is only a 1 tag in the repository) then
  * set the base sha to the first commit in the repository.