让 Alfred 支持拼音

文章目录

效果图在这里
解决办法
- 首先你要有以下几个工具或者库
- 准备好环境之后创建以下脚本
- 执行脚本
原理
实现
- 获取程序名
- 转换为拼音
- 添加拼音信息

效果图在这里

解决办法

首先你要有以下几个工具或者库

python 安装方法 brew install python（brew怎么没这个命令…没有的同学请自行百度）ps：其实mac自带的python足够用了我们只运行一个脚本而已
pypinyin 安装方法 pip install pypinyin
pyobjc 安装方法 pip install pyobjc

准备好环境之后创建以下脚本

#! /usr/bin/python
# -*- coding: utf-8 -*-# @author weishu @2015/12/7import subprocess
import os
import re
import jsonfrom AppKit import NSWorkspace, NSBundle
from pypinyin import lazy_pinyin# copy from Alfred 2 preferences, if you have applications installed at other place, add it here.
APP_DIRECTORYS = [u'/Applications',u'/Applications/Xcode.app/Contents/Applications',u'/Developer/Applications',u'/Library/PreferencePannes',u'/opt/homebrew-cask/Caskroom',u'/System/Library/PreferencePannes',u'/usr/local/Cellar',u'~/Library/Caches/Metadata',u'~/Library/Mobile Documents',u'~/Library/PreferencePannes'
]def _is_application(workspace, abspath):''' is a `abspath` stand for a mac app'''return workspace.isFilePackageAtPath_(abspath)def _get_app_pinyin_name(app_name):return reduce(lambda x, y: x + y, lazy_pinyin(app_name, errors='ignore'))def _add_meta_data(app_pinyin_name, app_path):''' add meta data(comments) to the app, which can help Alfred or SpotLight find it'''print "processing %s" % app_pathtry:subprocess.check_call('xattr -w com.apple.metadata:kMDItemFinderComment %s "%s"' % (app_pinyin_name, app_path), shell=True)except:print "process %s failed, ignore." % app_pathdef _get_localized_name(abs_path):'''get the localized name of given app'''bundle = NSBundle.new()bundle.initWithPath_(abs_path)localizations = bundle.localizations()chinese = ('zh_CN', 'zh_Hans', 'zh-Hans', 'zh-CN')b = any(map(lambda x: x in localizations, chinese))if not b: return for ch in chinese:path = bundle.pathForResource_ofType_inDirectory_forLanguage_('InfoPlist', 'strings', None, ch)if not path: continue# the path must surround with "", there may be space charactersjson_str = subprocess.check_output(u'plutil -convert json -o - "%s"' % path, shell=True)# print json_strjson_res = json.loads(json_str, encoding='utf8')name = json_res.get('CFBundleName')if name: return namedef main():pattern = re.compile(r'^[\w\s.]+$')workspace = NSWorkspace.sharedWorkspace()for app_dir in APP_DIRECTORYS:if not os.path.exists(app_dir): continuefor root, dirs, files in os.walk(app_dir, topdown=True):remove_list = []for directory in dirs:full_path = os.path.join(root, directory)# print full_pathif not _is_application(workspace, full_path): continueremove_list.append(directory)try:localized_name =  _get_localized_name(full_path)except:print "get localized name for %s failed. ignore" % full_path# continue# print "localized_name:", localized_name if localized_name else Noneapp_name = localized_name if localized_name else directory.rsplit(r'.')[0]if pattern.match(app_name):# print "app_name: %s not match" % app_namecontinuetry:_add_meta_data(_get_app_pinyin_name(app_name), full_path)except:# may be empty, just ignoreprint "add meta for %s failed" % full_path# if this directory is already a Application# do not traverse this; some app may be very large # and there won't be any other app inside itdirs[:] = [d for d in dirs if d not in remove_list]if __name__ == '__main__':main()

执行脚本

sudo python alfred-pinyin.py

that’s all

原理

Alfred检索程序不仅仅是检索名字，还收集了一些额外的信息；它利用了Mac文件系统的一个拓展信息的字段；如果你发现某些目录后面有@那么就是有拓展信息了：

drwxr-xr-x+  3 root    wheel  102  9 10  2014 Stickies.app/
drwxr-xr-x@  3 weishu  admin  102  3 26  2015 Sublime Text.app/

可以借助命令行工具xattr进行操作；具体使用可以man xattr.

所以，我们可以通过把拼音信息添加到文件的拓展信息里面去，这样Alfred就能借助这些信息帮助拼音检索了。

实现

获取程序名

程序名不仅仅是一个文件名这么简单，Mac软件有一个叫做localization的概念，大致就是国际化吧；程序结构把国际化的字段存放在不同的文件里面，在程序本地化之后自动load.

我们要使用的那个字段是CFBundleName；存放在/<App>/Contents/Resources/<language>/InfoPlist.strings这个文件里面；我们把这个名字读取出来即可。

尝试过使用objc的接口NSBundle.localizedInfoDiction来获取本地化的字段，无奈拿到的永远是英文字段；只好手工解析中文字段了（不会Objc ）；使用的命令行工具plutil:

def _get_localized_name(abs_path):'''get the localized name of given app'''bundle = NSBundle.new()bundle.initWithPath_(abs_path)localizations = bundle.localizations()chinese = ('zh_CN', 'zh_Hans')b = any(map(lambda x: x in localizations, chinese))if not b: return for ch in chinese:path = bundle.pathForResource_ofType_inDirectory_forLanguage_('InfoPlist', 'strings', None, ch)if not path: continue# the path must surround with "", there may be space charactersjson_str = subprocess.check_output(u'plutil -convert json -o - "%s"' % path, shell=True)# print json_strjson_res = json.loads(json_str, encoding='utf8')name = json_res.get('CFBundleName')if name: return name

转换为拼音

可以直接使用python的拼音转换库pypinyin,借助这个工具，一行代码搞定：

def _get_app_pinyin_name(app_name):reduce(lambda x, y: x + y, lazy_pinyin(app_name, errors='ignore'))

添加拼音信息

拼音信息被添加到文件的拓展信息里面，直接使用xattr添加即可：

def _add_meta_data(app_pinyin_name, app_path):''' add meta data(comments) to the app, which can help Alfred or SpotLight find it'''subprocess.check_call('xattr -w com.apple.metadata:kMDItemFinderComment %s %s' % (app_pinyin_name, app_path), shell=True)

好了，把这些代码整合起来，就能得到最终的结果了.

def main():pattern = re.compile(r'^[\w\s.]+$')workspace = NSWorkspace.sharedWorkspace()for app_dir in APP_DIRECTORYS:if not os.path.exists(app_dir): continuefor root, dirs, files in os.walk(app_dir, topdown=True):remove_list = []for directory in dirs:# print type(directory), root, directoryfull_path = os.path.join(root, directory)if not _is_application(workspace, full_path): continueremove_list.append(directory)localized_name =  _get_localized_name(full_path)app_name = localized_name if localized_name else directory.rsplit(r'.')[0]if pattern.match(app_name): continue_add_meta_data(_get_app_pinyin_name(app_name), full_path)# if this directory is already a Application# do not traverse this; some app may be very large # and there won't be any other app inside itdirs[:] = [d for d in dirs if d not in remove_list]

git 地址：https://gist.github.com/tiann/35fb758c18036d7f8640
参考文章：http://www.jianshu.com/p/dee4d6a0ed4f