Merge branch 'github-actions-lint' into develop

.github/workflows/build.yml

@@ -82,34 +82,47 @@ jobs:
       if: success() || failure()
       run: |
         rm -rf "$DF_FOLDER"
+
   lint:
     runs-on: ubuntu-18.04
     steps:
-    - name: Install dependencies
+    - name: Set up Python 3
+      uses: actions/setup-python@v2
+      with:
+        python-version: 3
+    - name: Set up Ruby 2.7
+      uses: actions/setup-ruby@v1
+      with:
+        ruby-version: 2.7
+    - name: Install Lua
       run: |
         sudo apt-get update
-        sudo apt-get install \
-          lua5.3 \
-          ruby
+        sudo apt-get install lua5.3
     - name: Clone DFHack
-      uses: actions/checkout@v1
+      uses: actions/checkout@v2
       with:
         submodules: true
+        # don't need tags here
     - name: Check whitespace
       run: |
         python travis/lint.py
     - name: Check Authors.rst
+      if: success() || failure()
       run: |
         python travis/authors-rst.py
     - name: Check for missing documentation
+      if: success() || failure()
       run: |
         python travis/script-docs.py
     - name: Check Lua syntax
+      if: success() || failure()
       run: |
-        python travis/script-syntax.py --ext=lua --cmd="luac5.3 -p"
+        python travis/script-syntax.py --ext=lua --cmd="luac5.3 -p" --github-actions
     - name: Check Ruby syntax
+      if: success() || failure()
       run: |
-        python travis/script-syntax.py --ext=rb --cmd="ruby -c"
+        python travis/script-syntax.py --ext=rb --cmd="ruby -c" --github-actions
+
   check-pr:
     runs-on: ubuntu-latest
     if: github.event_name == 'pull_request'

travis/all.py

@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 import argparse, os, sys, time
 
 parser = argparse.ArgumentParser()

travis/authors-rst.py

@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 """ Overly-complicated script to check formatting/sorting in Authors.rst """
 
 import re, sys

travis/check-rpc.py

@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 import glob
 import sys
 

travis/lint.py

@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 import re, os, sys
 
 valid_extensions = ['c', 'cpp', 'h', 'hpp', 'mm', 'lua', 'rb', 'proto',
@@ -18,28 +19,13 @@ def valid_file(filename):
         not len(list(filter(lambda path: path.replace('\\', '/') in filename.replace('\\', '/'), path_blacklist)))
 
 success = True
-def error(msg):
+def error(msg=None):
     global success
     success = False
+    if msg:
         sys.stderr.write(msg + '\n')
 
-class LinterError(Exception): pass
-
-class Linter(object):
-    ignore = False
-    def check(self, lines):
-        failures = []
-        for i, line in enumerate(lines):
-            if not self.check_line(line):
-                failures.append(i + 1)
-        if len(failures):
-            raise LinterError('%s: %s' % (self.msg, self.display_lines(failures, len(lines))))
-
-    def fix(self, lines):
-        for i in range(len(lines)):
-            lines[i] = self.fix_line(lines[i])
-
-    def display_lines(self, lines, total):
+def format_lines(lines, total):
     if len(lines) == total - 1:
         return 'entire file'
     if not len(lines):
@@ -64,6 +50,34 @@ class Linter(object):
                 s += ('%i-%i, ' % (range_start, range_end))
     return s.rstrip(' ').rstrip(',')
 
+class LinterError(Exception):
+    def __init__(self, message, lines, total_lines):
+        self.message = message
+        self.lines = lines
+        self.total_lines = total_lines
+
+    def __str__(self):
+        return '%s: %s' % (self.message, format_lines(self.lines, self.total_lines))
+
+    def github_actions_workflow_command(self, filename):
+        first_line = self.lines[0] if self.lines else 1
+        return '::error file=%s,line=%i::%s' % (filename, first_line, self)
+
+class Linter(object):
+    ignore = False
+    def check(self, lines):
+        failures = []
+        for i, line in enumerate(lines):
+            if not self.check_line(line):
+                failures.append(i + 1)
+        if len(failures):
+            raise LinterError(self.msg, failures, len(lines))
+
+    def fix(self, lines):
+        for i in range(len(lines)):
+            lines[i] = self.fix_line(lines[i])
+
+
 class NewlineLinter(Linter):
     msg = 'Contains DOS-style newlines'
     # git supports newline conversion.  Catch in CI, ignore on Windows.
@@ -91,6 +105,7 @@ class TabLinter(Linter):
 linters = [cls() for cls in Linter.__subclasses__() if not cls.ignore]
 
 def main():
+    is_github_actions = os.environ.get('GITHUB_ACTIONS')
     root_path = os.path.abspath(sys.argv[1] if len(sys.argv) > 1 else '.')
     if not os.path.exists(root_path):
         print('Nonexistent path: %s' % root_path)
@@ -112,12 +127,21 @@ def main():
                     try:
                         lines[i] = line.decode('utf-8')
                     except UnicodeDecodeError:
-                        error('%s:%i: Invalid UTF-8 (other errors will be ignored)' % (rel_path, i + 1))
+                        msg_params = (rel_path, i + 1, 'Invalid UTF-8 (other errors will be ignored)')
+                        if is_github_actions:
+                            error()
+                            print('::error file=%s,line=%i::%s' % msg_params)
+                        else:
+                            error('%s:%i: %s' % msg_params)
                         lines[i] = ''
             for linter in linters:
                 try:
                     linter.check(lines)
                 except LinterError as e:
+                    if is_github_actions:
+                        error()
+                        print(e.github_actions_workflow_command(rel_path))
+                    else:
                         error('%s: %s' % (rel_path, e))
                     if fix:
                         linter.fix(lines)

travis/run-tests.py

@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 import argparse
 import enum
 import json

travis/script-docs.py

@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 from __future__ import print_function
 from io import open
 import os

travis/script-syntax.py

@@ -1,8 +1,26 @@
+#!/usr/bin/env python3
 import argparse
 import os
 import subprocess
 import sys
 
+
+def print_stderr(stderr, args):
+    if not args.github_actions:
+        sys.stderr.write(stderr + '\n')
+        return
+
+    for line in stderr.split('\n'):
+        parts = list(map(str.strip, line.split(':')))
+        # e.g. luac prints "luac:" in front of messages, so find the first part
+        # containing the actual filename
+        for i in range(len(parts) - 1):
+            if parts[i].endswith('.' + args.ext) and parts[i + 1].isdigit():
+                print('::error file=%s,line=%s::%s' % (parts[i], parts[i + 1], ':'.join(parts[i + 2:])))
+                break
+        print(line)
+
+
 def main(args):
     root_path = os.path.abspath(args.path)
     cmd = args.cmd.split(' ')
@@ -19,7 +37,13 @@ def main(args):
                 continue
             full_path = os.path.join(cur, filename)
             try:
-                subprocess.check_output(cmd + [full_path])
+                p = subprocess.Popen(cmd + [full_path], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+                _, stderr = p.communicate()
+                stderr = stderr.decode('utf-8', errors='ignore')
+                if stderr:
+                    print_stderr(stderr, args)
+                if p.returncode != 0:
+                    err = True
             except subprocess.CalledProcessError:
                 err = True
             except IOError:
@@ -34,5 +58,7 @@ if __name__ == '__main__':
     parser.add_argument('--path', default='.', help='Root directory')
     parser.add_argument('--ext', help='Script extension', required=True)
     parser.add_argument('--cmd', help='Command', required=True)
+    parser.add_argument('--github-actions', action='store_true',
+        help='Enable GitHub Actions workflow command output')
     args = parser.parse_args()
     main(args)