Add token input option

CHANGELOG.md

@@ -10,6 +10,8 @@ Note: In this file, do not use the hard wrap in the middle of a sentence for com
 
 ## [Unreleased]
 
+- Add `token` input option to use the specified token instead of `GITHUB_TOKEN` environment variable.
+
 - Update `parse-changelog` to 0.5.1. This includes a bug fix and performance improvements.
 
 ## [1.5.0] - 2022-02-17

README.md

@@ -38,13 +38,16 @@ Currently, changelog format and supported tag names have the following rule:
 
 ### Inputs
 
-| Name      | Required | Description                                                                 | Type    | Default |
-|-----------|:--------:|-----------------------------------------------------------------------------|---------|---------|
-| changelog | false    | Path to changelog (variables `$tag`, `$version`, `$prefix`, and any string) | String  |         |
-| title     | false    | Format of title (variables `$tag`, `$version`, `$prefix`, and any string)   | String  | `$tag`  |
-| draft     | false    | Create a draft release (`true` or `false`)                                  | Boolean | `false` |
-| branch    | false    | Reject releases from commits not contained in branches that match the specified pattern (regular expression) | String  |         |
-| prefix    | false    | An optional pattern that matches a prefix for the release tag, before the version number (see [action.yml](action.yml) for more) | String |         |
+| Name      | Required  | Description                                                                 | Type    | Default |
+|-----------|:---------:|-----------------------------------------------------------------------------|---------|---------|
+| token     | false [^1]| GitHub token for creating GitHub Releases (see [action.yml](action.yml) for more) | String |         |
+| changelog | false     | Path to changelog (variables `$tag`, `$version`, `$prefix`, and any string) | String  |         |
+| title     | false     | Format of title (variables `$tag`, `$version`, `$prefix`, and any string)   | String  | `$tag`  |
+| draft     | false     | Create a draft release (`true` or `false`)                                  | Boolean | `false` |
+| branch    | false     | Reject releases from commits not contained in branches that match the specified pattern (regular expression) | String  |         |
+| prefix    | false     | An optional pattern that matches a prefix for the release tag, before the version number (see [action.yml](action.yml) for more) | String |         |
+
+[^1]: Required one of `token` input option or `GITHUB_TOKEN` environment variable.
 
 ### Outputs
 

action.yml

@@ -36,6 +36,12 @@ inputs:
       variable.
     required: false
     default: ''
+  token:
+    description: >
+      GitHub token for creating GitHub Releases.
+
+      If not set this option, the GITHUB_TOKEN environment variable will be used.
+    required: false
 
 outputs:
   computed-prefix:

main.sh

@@ -22,9 +22,10 @@ changelog="${INPUT_CHANGELOG:-}"
 draft="${INPUT_DRAFT:-}"
 branch="${INPUT_BRANCH:-}"
 prefix="${INPUT_PREFIX:-}"
+token="${INPUT_TOKEN:-"${GITHUB_TOKEN:-}"}"
 
-if [[ -z "${GITHUB_TOKEN:-}" ]]; then
-    bail "GITHUB_TOKEN not set"
+if [[ -z "${token:-}" ]]; then
+    bail "neither GITHUB_TOKEN environment variable nor 'token' input option is set."
 fi
 
 if [[ "${GITHUB_REF:?}" != "refs/tags/"* ]]; then
@@ -103,13 +104,13 @@ if [[ -n "${changelog}" ]]; then
 fi
 
 # https://cli.github.com/manual/gh_release_view
-if gh release view "${tag}" &>/dev/null; then
+if GITHUB_TOKEN="${token}" gh release view "${tag}" &>/dev/null; then
     # https://cli.github.com/manual/gh_release_delete
-    gh release delete "${tag}" -y
+    GITHUB_TOKEN="${token}" gh release delete "${tag}" -y
 fi
 
 # https://cli.github.com/manual/gh_release_create
-gh release create "${release_options[@]}" --title "${title}" --notes "${notes:-}"
+GITHUB_TOKEN="${token}" gh release create "${release_options[@]}" --title "${title}" --notes "${notes:-}"
 
 # set (computed) prefix and version outputs for future step use
 computed_prefix=${tag%"${version}"}