Closes #24. Add Python (PEP 8) support.

- Add reusable cli-beautify for external, non-Node beautifiers.

README.md

@@ -19,11 +19,12 @@ Atom Package: https://atom.io/packages/atom-beautify
 - [x] SQL, special thanks to [pretty-data](https://github.com/vkiryukhin/pretty-data)
 - [x] [PHP](https://github.com/donaldpipowitch/atom-beautify/issues/26)  
   - Requires [PHP_Beautifier](http://pear.php.net/package/PHP_Beautifier) to be already installed.
-  - [See `PHP` under `Advanced Language Setup` for setup details](https://github.com/donaldpipowitch/atom-beautify#php)
+- [x] [Python](https://github.com/donaldpipowitch/atom-beautify/issues/24)
+  - Requires [autopep8](https://github.com/hhatto/autopep8) to be already installed.
+  - Beautifies to [PEP 8](http://legacy.python.org/dev/peps/pep-0008/).
 
 ### Coming Soon
 
-- [ ] Python, see https://github.com/donaldpipowitch/atom-beautify/issues/24
 - [ ] Ruby, see https://github.com/donaldpipowitch/atom-beautify/issues/25
 - [ ] CoffeeScript, see https://github.com/donaldpipowitch/atom-beautify/issues/31
 
@@ -125,6 +126,15 @@ and that you set the `Php beautifier path` in the package settings.
 
 Run `which php_beautifier` in your Terminal.
 
+### Python
+
+To use with Python we require [autopep8](https://github.com/hhatto/autopep8)
+and that you set the `Python autopep8 path` in the package settings.
+
+#### Retrieve the path on Mac & Linux
+
+Run `which autopep8` in your Terminal.
+
 
 ## Contributing
 

examples/simple-jsbeautifyrc/test.py

@@ -0,0 +1,21 @@
+import math, sys;
+
+def example1():
+    ####This is a long comment. This should be wrapped to fit within 72 characters.
+    some_tuple=(   1,2, 3,'a'  );
+    some_variable={'long':'Long code lines should be wrapped within 79 characters.',
+    'other':[math.pi, 100,200,300,9876543210,'This is a long string that goes on'],
+    'more':{'inner':'This whole logical line should be wrapped.',some_tuple:[1,
+    20,300,40000,500000000,60000000000000000]}}
+    return (some_tuple, some_variable)
+def example2(): return {'has_key() is deprecated':True}.has_key({'f':2}.has_key(''));
+class Example3(   object ):
+    def __init__    ( self, bar ):
+     #Comments should have a space after the hash.
+     if bar : bar+=1;  bar=bar* bar   ; return bar
+     else:
+                    some_string = """
+                       Indentation in multiline strings should not be touched.
+Only actual code should be reindented.
+"""
+                    return (sys.path, some_string)

lib/atom-beautify.js

@@ -16,6 +16,7 @@ var beautifyHTML = require('js-beautify').html;
 var beautifyCSS = require('js-beautify').css;
 var beautifySQL = require('./langs/sql-beautify');
 var beautifyPHP = require('./langs/php-beautify');
+var beautifyPython = require('./langs/python-beautify');
 
 // TODO: Copied from jsbeautify, please update it from time to time
 var knownOpts = {
@@ -158,7 +159,7 @@ function findConfig(config, file) {
 
 // Supported unique configuration keys
 // Used for detecting nested configurations in .jsbeautifyrc
-var languages = ['js', 'html', 'css', 'sql', 'php'];
+var languages = ['js', 'html', 'css', 'sql', 'php', 'python'];
 var defaultLanguageOptions = {
   /* jshint ignore: start */
   // JavaScript
@@ -191,7 +192,9 @@ var defaultLanguageOptions = {
   sql_indent_size: 2,
   sql_indent_char: ' ',
   // PHP
-  php_beautifier_path: ''
+  php_beautifier_path: '',
+  // Python
+  python_autopep8_path: ''
   /* jshint ignore: end */
 };
 
@@ -397,6 +400,9 @@ function beautify() {
   case 'PHP':
     beautifyPHP(text, getOptions('php', allOptions), beautifyCompleted);
     break;
+  case 'Python':
+      beautifyPython(text, getOptions('python', allOptions), beautifyCompleted);
+      break;
   default:
     return;
   }

lib/langs/cli-beautify.js

@@ -0,0 +1,77 @@
+/**
+Requires http://pear.php.net/package/PHP_Beautifier
+*/
+
+'use strict';
+
+var fs = require('fs');
+var temp = require('temp').track();
+var exec = require('child_process').exec;
+
+module.exports = function (getCmd, isStdout) {
+
+  return function (text, options, callback) {
+    // Create temp input file
+    temp.open('input', function (err, info) {
+      if (!err) {
+        // Save current text to input file
+        fs.write(info.fd, text || '');
+        fs.close(info.fd, function (err) {
+          if (!err) {
+            // Create temp output file
+            var outputPath = temp.path();
+            var deleteOutputFile = function () {
+              // Delete the output path
+              fs.unlink(outputPath, function () {});
+            };
+            // Get the command
+            var cmd = getCmd(info.path, outputPath, options); // jshint ignore: line
+            if (cmd) {
+
+              var config = {
+                env: process.env
+              };
+
+              var isWin = /^win/.test(process.platform);
+              if (!isWin) {
+                // We need the $PATH to be correct when executing the command.
+                // This should normalize the $PATH
+                // by calling the external files that would usually
+                // change the $PATH variable on user login.
+                var $path = '[ -f ~/.bash_profile ] && source ~/.bash_profile;';
+                $path += '[ -f ~/.bash_rc ] && source ~/.bash_rc;';
+                // See http://stackoverflow.com/a/638980/2578205
+                // for checking if file exists in Bash
+                cmd = $path + cmd;
+              }
+
+              // Execute and beautify!
+              exec(cmd, config, function (err, stdout) {
+                if (!err) {
+                  // Beautification has completed
+                  if (isStdout) {
+                    // Execute callback with resulting output text
+                    callback(stdout);
+                    deleteOutputFile();
+                  } else {
+                    // Read contents of output file
+                    fs.readFile(outputPath, 'utf8', function (err, newText) {
+                      // Execute callback with resulting output text
+                      callback(newText);
+                      deleteOutputFile();
+                    });
+                  }
+                } else {
+                  deleteOutputFile();
+                }
+              });
+            } else {
+              console.log('Beautify CLI command not valid.');
+            }
+          }
+        });
+      }
+    });
+  };
+
+};

lib/langs/php-beautify.js

@@ -4,49 +4,16 @@ Requires http://pear.php.net/package/PHP_Beautifier
 
 'use strict';
 
-var fs = require('fs');
-var temp = require('temp').track();
-var exec = require('child_process').exec;
-
-module.exports = function (text, options, callback) {
-  // Create temp input file
-  temp.open('input.php', function (err, info) {
-    if (!err) {
-      // Save current text to input file
-      fs.write(info.fd, text);
-      fs.close(info.fd, function (err) {
-        if (!err) {
-          // Create temp output file
-          var outputPath = temp.path();
-          var deleteOutputFile = function () {
-            // Delete the output path
-            fs.unlink(outputPath, function () {});
-          };
+var cliBeautify = require('./cli-beautify');
 
+function getCmd(inputPath, outputPath, options) {
   var phpBeautifierPath = options.beautifier_path; // jshint ignore: line
   if (phpBeautifierPath) {
-            // Beautify
-            var config = {
-              env: process.env
-            };
-            exec('php "' + phpBeautifierPath + '" "' + info.path + '" "' + outputPath + '"', config, function (err) {
-              if (!err) {
-                // Beautification has completed
-                // Read contents of output file
-                fs.readFile(outputPath, 'utf8', function (err, newText) {
-                  // Execute callback with resulting output text
-                  callback(newText);
-                  deleteOutputFile();
-                });
+    // Use absolute path
+    return 'php "' + phpBeautifierPath + '" "' + inputPath + '" "' + outputPath + '"';
   } else {
-                deleteOutputFile();
-              }
-            });
-          } else {
-            console.log('PHP Beautifier Path not set in Package settings.');
+    // Use command available in $PATH
+    return 'php_beautifier "' + inputPath + '" "' + outputPath + '"';
   }
 }
-      });
-    }
-  });
-};
+module.exports = cliBeautify(getCmd);

lib/langs/python-beautify.js

@@ -0,0 +1,20 @@
+/**
+Requires https://github.com/hhatto/autopep8
+*/
+
+'use strict';
+
+var cliBeautify = require('./cli-beautify');
+
+function getCmd(inputPath, outputPath, options) {
+  var path = options.autopep8_path; // jshint ignore: line
+  if (path) {
+    // Use absolute path
+    return 'python "' + path + '" "' + inputPath + '"';
+  } else {
+    // Use command available in $PATH
+    return 'autopep8 "' + inputPath + '"';
+  }
+}
+var isStdin = true;
+module.exports = cliBeautify(getCmd, isStdin);

package.json

@@ -58,7 +58,8 @@
     "scss",
     "less",
     "sql",
-    "php"
+    "php",
+    "python"
   ],
   "engines": {
     "atom": ">0.50.0"