Merge pull request #32 from J-Fields/exclude-deleted-files

Exclude deleted files when using `only_changed`

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,28 @@
+---
+name: Bug report
+about: Report a problem!
+title: "[BUG]"
+labels: bug
+assignees: ''
+
+---
+
+**What exactly happened?**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**What should've happened?**
+A clear and concise description of what you expected to happen.
+
+**How did it look?**
+If applicable, add screenshots to help explain your problem.
+
+**Where did you encounter the problem?**
+ - OS: [e.g. iOS]
+- Repo: [e.g. URL to your repository]
+ - Version [e.g. 22]
+
+<!-- If you think you can help us with that, please note it here! -->

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,16 @@
+---
+name: Feature request
+about: Request a feature!
+title: "[FEATURE]"
+labels: enhancement
+assignees: ''
+
+---
+
+**What would you like to change about the program?**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Why do you think this is a cool idea?**
+A clear and concise description of why your feature would improve the program.
+
+<!-- If you think you can help us with that, please note it here! -->

.gitignore

@@ -0,0 +1,4 @@
+# MacOS system files
+.DS_Store
+# NPM
+node_modules/

Dockerfile

@@ -1,3 +1,4 @@
-FROM node:latest
+FROM node:lts-alpine3.9
+RUN apk update && apk add --no-cache bash git openssh
 COPY entrypoint.sh /entrypoint.sh
 ENTRYPOINT ["/entrypoint.sh"]

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2020 Conrad
+Copyright (c) 2020 Conrad Großer
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -14,7 +14,7 @@ copies or substantial portions of the Software.
 
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

README.md

@@ -1,19 +1,99 @@
 # GitHub Prettier Action
 
-A GitHub action for styling files with [prettier](prettier.io).
+[![CodeFactor](https://www.codefactor.io/repository/github/creyd/prettier_action/badge/master)](https://www.codefactor.io/repository/github/creyd/prettier_action/overview/master)
+[![code style: prettier](https://img.shields.io/badge/code_style-prettier-ff69b4.svg?style=flat-square)](https://github.com/prettier/prettier)
+[![License MIT](https://img.shields.io/github/license/creyD/prettier_action)](https://github.com/creyD/prettier_action/blob/master/LICENSE)
+[![Latest Release](https://img.shields.io/github/v/release/creyD/prettier_action)](https://github.com/creyD/prettier_action/releases)
+[![Contributors](https://img.shields.io/github/contributors-anon/creyD/prettier_action)](https://github.com/creyD/prettier_action/graphs/contributors)
+[![Issues](https://img.shields.io/github/issues/creyD/prettier_action)](https://github.com/creyD/prettier_action/issues)
+
+
+A GitHub action for styling files with [prettier](https://prettier.io).
 
 ## Usage
 
 ### Parameters
 
 | Parameter | Required | Default | Description |
-| - | - | - | - |
-| prettier_options | :white_check_mark: | - | Prettier options |
+| - | :-: | :-: | - |
+| dry | :x: | `false` | Runs the action in dry mode. Files wont get changed and the action fails if there are unprettified files. |
+| prettier_version | :x: | `false` | Specific prettier version (by default use latest) |
+| prettier_options | :x: | `"--write **/*.js"` | Prettier options (by default it applies to the whole repository) |
 | commit_options | :x: | - | Custom git commit options |
-| commit_message | :x: | 'Prettified Code!' | Custom git commit message |
-| file_pattern | :x: | '*' | Custom git add file pattern |
-| branch | :white_check_mark: | - | Custom git publish branch, use ${{ github.head_ref }} if used in pull requests |
+| same_commit | :x: | `false` | Update the current commit instead of creating a new one, created by [Joren Broekema](https://github.com/jorenbroekema), this command works only with the checkout action set to fetch depth '0' (see example 2)  |
+| commit_message | :x: | `"Prettified Code!"` | Custom git commit message, will be ignored if used with `same_commit` |
+| file_pattern | :x: | `*` | Custom git add file pattern, can't be used with only_changed! |
+| branch (deprecated with 3.0)| :white_check_mark: | - | Always set this to `${{ github.head_ref }}` in order to work both with pull requests and push events |
+| only_changed | :x: | `false` | Only prettify changed files, can't be used with file_pattern! This command works only with the checkout action set to fetch depth '0' (see example 2)|
+
+> Note: using the same_commit option may lead to problems if other actions are relying on the commit being the same before and after the prettier action has ran. Keep this in mind.
+
+### Example Config
+
+#### Example 1 (run on push in master)
+```yaml
+name: Continuous Integration
+
+# This action works with pull requests and pushes
+on:
+  pull_request:
+  push:
+    branches:
+    - master
+
+jobs:
+  prettier:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+      with:
+        # Make sure the actual branch is checked out when running on pull requests
+        ref: ${{ github.head_ref }}
+
+    - name: Prettify code
+      uses: creyD/prettier_action@v3.1
+      with:
+        # This part is also where you can pass other options, for example:
+        prettier_options: --write **/*.{js,md}
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+```
+
+#### Example 2 (using the only_changed or same_commit option on PR)
+```yaml
+name: Continuous Integration
+
+on:
+  pull_request:
+    branches: [master]
+
+jobs:
+  prettier:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+      with:
+        # Make sure the actual branch is checked out when running on pull requests
+        ref: ${{ github.head_ref }}
+        # This is important to fetch the changes to the previous commit
+        fetch-depth: 0
+
+    - name: Prettify code
+      uses: creyD/prettier_action@v3.1
+      with:
+        # This part is also where you can pass other options, for example:
+        prettier_options: --write **/*.{js,md}
+        only_changed: True
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+```
+
+More documentation for writing a workflow can be found [here](https://help.github.com/en/actions/automating-your-workflow-with-github-actions/workflow-syntax-for-github-actions).
 
 ## Issues
 
-Please report all bugs and feature request using the [GitHub issues function](https://github.com/creyD/prettier_action/issues/new).
+Please report all bugs and feature request using the [GitHub issues function](https://github.com/creyD/prettier_action/issues/new). Thanks!

action.yml

@@ -1,36 +1,44 @@
-name: 'Prettier Action'
-description: 'Automatically runs prettier on all your pull requests.'
+name: Prettier Action
+description: Automatically runs prettier on all your changes.
 
 author: Conrad Großer <grosserconrad@gmail.com>
 
 inputs:
   commit_message:
-    description: Commit message
+    description: Commit message, will be ignored if used with same_commit
     required: false
     default: 'Prettified Code!'
+  same_commit:
+    description: Update the current commit instead of creating a new one
+    required: false
+    default: false
   commit_options:
     description: Commit options
     required: false
   file_pattern:
-    description: File pattern used for "git add"
+    description: File pattern used for `git add`, can't be used with only_changed!
     required: false
     default: '*'
   prettier_options:
-    description: Options for the 'prettier' command
-    required: true
-  branch:
-    description: Branch which the changes are merged to
-    required: true
+    description: Options for the `prettier` command
+    required: false
+    default: '--write **/*.js'
+  dry:
+    description: Running the script in dry mode just shows whether there are files that should be prettified or not
+    required: false
+    default: false
+  prettier_version:
+    description: Specific version of prettier (by default just use the latest version)
+    required: false
+    default: false
+  only_changed:
+    description: Only prettify files changed in the last commit, can't be used with file_pattern!
+    required: false
+    default: false
 
 runs:
   using: 'docker'
   image: 'Dockerfile'
-  args:
-    - ${{ inputs.commit_message }}
-    - ${{ inputs.commit_options }}
-    - ${{ inputs.file_pattern }}
-    - ${{ inputs.prettier_options }}
-    - ${{ inputs.branch }}
 
 branding:
   icon: 'award'

entrypoint.sh

@@ -1,41 +1,77 @@
-#!/bin/sh -l
-
+#!/bin/sh
+# e is for exiting the script automatically if a command fails, u is for exiting if a variable is not set
+# x would be for showing the commands before they are executed
 set -eu
 
+# FUNCTIONS
 # Function for setting up git env in the docker container (copied from https://github.com/stefanzweifel/git-auto-commit-action/blob/master/entrypoint.sh)
-git_setup ( ) {
-  cat <<- EOF > $HOME/.netrc
-        machine github.com
-        login $GITHUB_ACTOR
-        password $GITHUB_TOKEN
-        machine api.github.com
-        login $GITHUB_ACTOR
-        password $GITHUB_TOKEN
+_git_setup ( ) {
+    cat <<- EOF > $HOME/.netrc
+      machine github.com
+      login $GITHUB_ACTOR
+      password $GITHUB_TOKEN
+      machine api.github.com
+      login $GITHUB_ACTOR
+      password $GITHUB_TOKEN
 EOF
     chmod 600 $HOME/.netrc
 
     git config --global user.email "actions@github.com"
-    git config --global user.name "GitHub Actions"
+    git config --global user.name "GitHub Action"
 }
-echo "Installing dependencies..."
-npm install
-npm install --global prettier
-echo "Prettifing files..."
-prettier $INPUT_PRETTIER_OPTIONS
 
-if ! git diff --quiet
-then
-  echo "Commiting and pushing changes..."
-  # Calling method to configure the git environemnt
-  git_setup
-  # Switch to the actual branch
-  git checkout $INPUT_BRANCH
-  # Add changes to git
-  git add "${INPUT_FILE_PATTERN}"
-  # Commit and push changes back
-  git commit -m "$INPUT_COMMIT_MESSAGE" --author="$GITHUB_ACTOR <$GITHUB_ACTOR@users.noreply.github.com>" ${INPUT_COMMIT_OPTIONS:+"$INPUT_COMMIT_OPTIONS"}
-  git push --set-upstream origin "HEAD:$INPUT_BRANCH"
-  echo "Changes pushed successfully."
+# Checks if any files are changed
+_git_changed() {
+    [[ -n "$(git status -s)" ]]
+}
+
+# PROGRAM
+echo "Installing prettier..."
+case $INPUT_PRETTIER_VERSION in
+    false)
+        npm install --silent --global prettier
+        ;;
+    *)
+        npm install --silent --global prettier@$INPUT_PRETTIER_VERSION
+        ;;
+esac
+
+echo "Prettifing files..."
+echo "Files:"
+prettier $INPUT_PRETTIER_OPTIONS || echo "Problem running prettier with $INPUT_PRETTIER_OPTIONS"
+
+# To keep runtime good, just continue if something was changed
+if _git_changed; then
+  if $INPUT_DRY; then
+    echo "Prettier found unpretty files!"
+    exit 1
+  else
+    # Calling method to configure the git environemnt
+    _git_setup
+
+    if $INPUT_ONLY_CHANGED; then
+      # --diff-filter=d excludes deleted files
+      for file in $(git diff --name-only --diff-filter=d HEAD^..HEAD)
+      do
+        git add $file
+      done
+    else
+      # Add changes to git
+      git add "${INPUT_FILE_PATTERN}" || echo "Problem adding your files with pattern ${INPUT_FILE_PATTERN}"
+    fi
+
+    # Commit and push changes back
+    if $INPUT_SAME_COMMIT; then
+      echo "Amending the current commit..."
+      git pull
+      git commit --amend --no-edit
+      git push origin -f
+    else
+      git commit -m "$INPUT_COMMIT_MESSAGE" --author="$GITHUB_ACTOR <$GITHUB_ACTOR@users.noreply.github.com>" ${INPUT_COMMIT_OPTIONS:+"$INPUT_COMMIT_OPTIONS"} || echo "No files added to commit"
+      git push origin
+    fi
+    echo "Changes pushed successfully."
+  fi
 else
   echo "Nothing to commit. Exiting."
 fi