Use github.actor as default value for commit author (actions#128)

Author: ocean90

README.md

@@ -58,10 +58,6 @@ Add a step like this to your workflow:
     # Arguments for the git tag command (the tag name always needs to be the first word not preceded by an hyphen)
     # Default: ''
     tag: 'v1.0.0 --force'
-
-    # The token to use to access the GitHub API when getting the author info (see the paragraph below for more info about the tokens used by the action)
-    # Default: secrets.GITHUB_TOKEN
-    token: ${{ secrets.GITHUB_TOKEN }}
 ```
 
 ### Adding files:
@@ -93,8 +89,7 @@ You can use the `tag` option to enter the arguments for a `git add` command. In
 
 ### Tokens:
 
-The token from the `token` input is only used when getting the author info from the GitHub API: usually the default GitHub token is enough but if for some reason you want to change it, you can use that input.  
-When pushing, the action uses the token that the local git repository has been configured with: that means that if you want to change it you'll need to do it in the steps that run before this action. For example: if you set up your repo with [`actions/checkout`](https://github.com/actions/checkout/) then you have to change the token there.  
+When pushing, the action uses the token that the local git repository has been configured with: that means that if you want to change it you'll need to do it in the steps that run before this action. For example: if you set up your repo with [`actions/checkout`](https://github.com/actions/checkout/) then you have to add the token there.  
 Changing the token with which the repo is configured can be useful if you want to run CI checks on the commit pushed by this action; anyway, it has to be set up outside of this action.
 
 ### Outputs:

action.yml

@@ -9,9 +9,11 @@ inputs:
   author_name:
     description: The name of the user that will be displayed as the author of the commit
     required: false
+    default: ${{ github.actor }}
   author_email:
     description: The email of the user that will be displayed as the author of the commit
     required: false
+    default: ${{ github.actor }}@users.noreply.github.com
   branch:
     description: Name of the branch to use, if different from the one that triggered the workflow
     required: false
@@ -39,10 +41,6 @@ inputs:
   tag:
     description: Arguments for the git tag command (the tag name always needs to be the first word not preceded by a hyphen)
     required: false
-  token:
-    description: 'GITHUB_TOKEN or a `repo` scoped Personal Access Token (PAT)'
-    required: false
-    default: ${{ github.token }}
 
 outputs:
   committed:

lib/index.js

@@ -35,7 +35,6 @@
   "homepage": "https://github.com/EndBug/add-and-commit#readme",
   "dependencies": {
     "@actions/core": "^1.2.6",
-    "axios": "^0.21.1",
     "js-yaml": "^3.14.1",
     "simple-git": "^2.27.0"
   },

package-lock.json

@@ -6,7 +6,6 @@ import {
   startGroup,
   endGroup
 } from '@actions/core'
-import axios from 'axios'
 import path from 'path'
 import simpleGit, { Response } from 'simple-git'
 import YAML from 'js-yaml'
@@ -179,25 +178,10 @@ async function checkInputs() {
   const eventPath = process.env.GITHUB_EVENT_PATH,
     event = eventPath && require(eventPath),
     isPR = process.env.GITHUB_EVENT_NAME?.includes('pull_request'),
-    sha = (event?.pull_request?.head?.sha || process.env.GITHUB_SHA) as string,
     defaultBranch = isPR
       ? (event?.pull_request?.head?.ref as string)
       : process.env.GITHUB_REF?.substring(11)
 
-  // #region GITHUB_TOKEN
-  let token = process.env.GITHUB_TOKEN
-  if (token) {
-    debug('Using token from GITHUB_TOKEN env variable.')
-    warning(
-      "The GITHUB_TOKEN env variable is deprecated and will not be supported in the next major release. Use the 'token' input, " +
-        "which defaults to 'secrets.GITHUB_TOKEN'."
-    )
-  } else {
-    debug('Using token from token input.')
-    token = getInput('token')
-  }
-  // #endregion
-
   // #region add, remove
   if (!getInput('add') && !getInput('remove'))
     throw new Error(
@@ -227,57 +211,11 @@ async function checkInputs() {
   // #endregion
 
   // #region author_name, author_email
-  if (getInput('author_name') && getInput('author_email')) {
-    info('> Using author info from inputs...')
-  } else {
-    info('> Some author info is missing, filling from workflow event...')
-    let author = event?.head_commit?.author
-
-    if (sha && !author) {
-      info(
-        '> Unable to get commit from workflow event: trying with the GitHub API...'
-      )
-
-      // https://docs.github.com/en/rest/reference/repos#get-a-commit--code-samples
-      const url = `https://api.github.com/repos/${process.env.GITHUB_REPOSITORY}/commits/${sha}`,
-        headers = token
-          ? {
-              Authorization: `Bearer ${token}`
-            }
-          : undefined,
-        commit = (
-          await axios.get(url, { headers }).catch((err) => {
-            startGroup('Request error:')
-            info(`> Request URL: ${url}\b${err}`)
-            endGroup()
-            return undefined
-          })
-        )?.data
-
-      author = commit?.commit?.author
-    }
-
-    if (typeof author == 'object') {
-      setDefault('author_name', author.name)
-      setDefault('author_email', author.email)
-    }
-
-    if (!getInput('author_name') || !getInput('author_email')) {
-      const reason = !eventPath
-        ? 'event path'
-        : isPR
-        ? sha
-          ? 'fetch commit'
-          : 'find commit sha'
-        : !event?.head_commit
-        ? 'find commit'
-        : 'find commit author'
-      warning(`Unable to fetch author info: couldn't ${reason}.`)
-      setDefault('author_name', 'Add & Commit Action')
-      setDefault('author_email', 'actions@github.com')
-    }
-  }
-
+  setDefault('author_name', `${process.env.GITHUB_ACTOR}`)
+  setDefault(
+    'author_email',
+    `${process.env.GITHUB_ACTOR}@users.noreply.github.com`
+  )
   info(
     `> Using '${getInput('author_name')} <${getInput(
       'author_email'