从github下载最新Android源码
今年5月底开始，谷歌彻底被墙，所有谷歌的网站都不能访问了，这次包括了android.org，googlesource.com，code.google.com。Android官方的资源不能访问，想下载Android代码当然是困难重重了。
本文就为大家解决这一问题——介绍如何使从github.com/andorid下载Andorid最新源码。俗话说“授之以鱼不如授之以渔”，本文不只是给出一个已经打包好的源码的链接，而是重现一下我是如何下载的，希望对大家遇到的类似的问题能有所帮助。
github.com/android简介
打开github.com/android可以看到：
中间黑体列出的的是各个项目的链接。github.com/android上托管的Android源码是用git单独管理每个项目的，而没有像googlesource.com那样使用repo（谷歌开发的基于git的命令行工具）管理所有项目。所以，如果你只想下载一个项目的源码，可以单独下载（比如开发App想跟一下SDK的一些源码可以下载platform_frameworks_base项目）。
怎么下载一个项目的代码？
用过git的同学当然知道，可以使用下面的命令获取远程仓库的代码：
1.
git clone [仓库URL]
当然，如果只是要配置“App源码调试”环境，可以点“Download ZIP”按钮，下载zip格式的源码包，然后在Eclipse调试的时候选择下载好的源码包。
如何批量下载github上的Android源码
这里在是本文的重点——批量下载github上的android源码。
根据单独下载一个项目的过程，下载所有项目的源码可以有两种方法：
得到所有项目的git仓库URL得到所有项目的ZIP包下载链接接下来的问题是如何得到这样的URL?
当然是从网页上（也就是页面的HTML文件上）！
现在问题就是如何得到这些网页？
我瞬间想到的办法就是——用CURL
ps: CURL是一个命令行上传下载工具，支持多种协议包括HTTP, HTTPS, FTP等。
没有curl的同学可以用如下命令下载：
1.
sudo apt-get install curl
有了CURL用来抓页面，就不愁得不到仓库URL或ZIP包URL了：
首先要抓取github.com/android的页面，再“顺藤摸瓜”地抓取各个项目的页面，再从各项目的页面上抓取仓库URL或ZIP包URL。
抓取页面
在github.com/android页面的下方可以看github.com/andoid一共分5页，点击后面几个页面，可以发现这几个页面的URL形式一致为:
1.
https://github.com/android?page=N
由此，可以用bash脚本轻易写出抓取这5个页面的代码（可以直接在终端里执行下面的命令）：
1.
for ((i=1; i<=5; i++)); do
2.
curl https://github.com/android?page=$i > android.github.com.$i.html;
3.
done
有捷径
再看项目的首页URL和仓库URL可以发现：
仓库URL = 首页URL + .git
比如，platform_frameworks_base的首页URL是：
1.
https://github.com/android/platform_frameworks_base
1.
https://github.com/android/platform_frameworks_base.git
1.
git://github.com/android/platform_frameworks_base.git
解析页面
现在的问题就是——如何从这些页面上得到仓库的URL了。
可以通过浏览器的“审查元素”菜单快速找到页面上一个链接对应的HTML代码块，如下图：
可以看到platform_frameworks_base项目的超链接（）被一个标签包围，粗略浏览一下刚才下载的几个子页面，可以看出每个项目首页的链接都是如此（在
的下一行）。
根据刚才找到的两个规律：
项目首页URL总是出现在的下一行
仓库URL = 首页URL + .git
可以写出解析各个项目首页（仓库URL）的python代码（getGitRepos.py）：
01.
#!/usr/bin/python
02.
import sys
03.
04.
flag = False
05.
link_prefix = 'https://github.com' # 如果使用ssh协议下载，可将https改为git
06.
07.
allLines = sys.stdin.readlines()
08.
for curLine in allLines:
09.
if curLine.find('repo-list-name') >= 0:
10.
flag = True
11.
if flag:
12.
pos = curLine.find('href="')
13.
if pos >= 0:
14.
pos += len('href="')
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last = curLine[pos:]
16.
end = last.find('"')
17.
link = last[:end]
18.
19.
# name to path.
20.
name = link[link.rfind('/')+1:]
21.
prefix = name.find('platform_')
22.
if prefix >= 0:
23.
name = name[len('platform_'):] # ignore platform_
24.
path = name.replace('_', '/')
25.
26.
link = link_prefix + link
27.
# print 'curl', link, '>', name
28.
# https://github.com/android/platform_external_qemu.git
29.
print 'git clone', link + '.git', path # 输出 git clone 命令
30.
flag = False
这段python程序从标准输入读入文本并解析，实际使用时可用重定向操作符实现，实现用之前抓取的github.com/android的几个子页面替代标准输入。
程序输出的git clone命令的path参数会忽略仓库名称前面的platform_前缀，这使得最终下载下来的源码结构和repo sync下来的类似。
可以先用一个页面测试一下，看看解析出来的URL对不对（上面的python代码就是这样改正确的），终端输入下面命令：
1.
./getGitRepos.py < android.github.com.1.html
01.
git clone https://github.com/android/platform_dalvik.git dalvik
02.
git clone https://github.com/android/platform_bionic.git bionic
03.
git clone https://github.com/android/platform_system_core.git system/core
04.
git clone https://github.com/android/kernel_common.git kernel/common
05.
git clone https://github.com/android/platform_external_qemu.git external/qemu
06.
git clone https://github.com/android/platform_build.git build
07.
git clone https://github.com/android/platform_development.git development
08.
git clone https://github.com/android/platform_frameworks_base.git frameworks/base
09.
git clone https://github.com/android/platform_manifest.git manifest
10.
git clone https://github.com/android/platform_frameworks_support.git frameworks/support
11.
git clone https://github.com/android/platform_packages_apps_settings.git packages/apps/settings
12.
git clone https://github.com/android/platform_external_dhcpcd.git external/dhcpcd
13.
git clone https://github.com/android/platform_external_webkit.git external/webkit
14.
git clone https://github.com/android/platform_external_protobuf.git external/protobuf
15.
git clone https://github.com/android/platform_packages_providers_mediaprovider.git packages/providers/mediaprovider
16.
git clone https://github.com/android/platform_external_elfutils.git external/elfutils
17.
git clone https://github.com/android/platform_external_strace.git external/strace
18.
git clone https://github.com/android/platform_hardware_libhardware.git hardware/libhardware
19.
git clone https://github.com/android/platform_external_tinyxml.git external/tinyxml
20.
git clone https://github.com/android/platform_external_oprofile.git external/oprofile
测试基本上出现问题，因为getGitRepos.py输出的是git clone命令，执行之后在能执行实际的下载动作；所以，需要将这些输出保存下来；
使用如下命令可将每个子页面解析出的git clone命令保存到一个文本文件内：
1.
for page in `ls android.github.com.*`; do
2.
echo parse $page
3.
./getGitRepos.py < $page >> gitRepos.txt;
4.
done
有了写满git clone命令的gitRepos.txt后，可以使用如下命令执行之：
1.
sh gitRepos.txt
一键下载
为了方便广大网友使用，我已将上面需要用的命令写道了下面的cloneRepos.sh：
01.
#!/bin/bash
02.
# clone AOSP each repo from https://github.com/android
03.
# this shell depends on git, curl and python 2.
04.
# INSTALL depends:
05.
# sudo apt-get install git curl python
06.
#
07.
# by xu(xusiwei1236@163.com).
08.
09.
# download github AOSP sub pages
10.
for ((i=1; i<=5; i++)); do
11.
echo get AOSP subpage https://github.com/android?page=$i
12.
curl https://github.com/android?page=$i > android.github.com.$i.html;
13.
done
14.
15.
# parse git repo URL from each sub pages
16.
mkdir repos
17.
cat /dev/null > gitRepos.txt
18.
for page in `ls android.github.com.*`; do
19.
echo parse $page
20.
./getGitRepos.py < $page >> gitRepos.txt;
21.
done
22.
23.
# clone repos
24.
sh gitRepos.txt
当然，如果觉得自己运行麻烦，可以直接copy生成的gitRepos.txt，直接粘贴到终端里执行之，即可下载全部Android源码：
01.
git clone https://github.com/android/platform_dalvik.git dalvik
02.
git clone https://github.com/android/platform_bionic.git bionic
03.
git clone https://github.com/android/platform_system_core.git system/core
04.
git clone https://github.com/android/kernel_common.git kernel/common
05.
git clone https://github.com/android/platform_external_qemu.git external/qemu
06.
git clone https://github.com/android/platform_build.git build
07.
git clone https://github.com/android/platform_development.git development
08.
git clone https://github.com/android/platform_frameworks_base.git frameworks/base
09.
git clone https://github.com/android/platform_manifest.git manifest
10.
git clone https://github.com/android/platform_frameworks_support.git frameworks/support
11.
git clone https://github.com/android/platform_packages_apps_settings.git packages/apps/settings
12.
git clone https://github.com/android/platform_external_dhcpcd.git external/dhcpcd
13.
git clone https://github.com/android/platform_external_webkit.git external/webkit
14.
git clone https://github.com/android/platform_external_protobuf.git external/protobuf
15.
git clone https://github.com/android/platform_packages_providers_mediaprovider.git packages/providers/mediaprovider
16.
git clone https://github.com/android/platform_external_elfutils.git external/elfutils
17.
git clone https://github.com/android/platform_external_strace.git external/strace
18.
git clone https://github.com/android/platform_hardware_libhardware.git hardware/libhardware
19.
git clone https://github.com/android/platform_external_tinyxml.git external/tinyxml
20.
git clone https://github.com/android/platform_external_oprofile.git external/oprofile
21.
git clone https://github.com/android/platform_external_neven.git external/neven
22.
git clone https://github.com/android/platform_external_netperf.git external/netperf
23.
git clone https://github.com/android/platform_external_netcat.git external/netcat
24.
git clone https://github.com/android/platform_external_libxml2.git external/libxml2
25.
git clone https://github.com/android/platform_external_libpng.git external/libpng
26.
git clone https://github.com/android/platform_external_libpcap.git external/libpcap
27.
git clone https://github.com/android/platform_external_libffi.git external/libffi
28.
git clone https://github.com/android/platform_external_jpeg.git external/jpeg
29.
git clone https://github.com/android/platform_external_jhead.git external/jhead
30.
git clone https://github.com/android/platform_external_jdiff.git external/jdiff
31.
git clone https://github.com/android/platform_external_iptables.git external/iptables
32.
git clone https://github.com/android/platform_external_icu4c.git external/icu4c
33.
git clone https://github.com/android/platform_external_giflib.git external/giflib
34.
git clone https://github.com/android/platform_external_freetype.git external/freetype
35.
git clone https://github.com/android/platform_external_fdlibm.git external/fdlibm
36.
git clone https://github.com/android/platform_external_expat.git external/expat
37.
git clone https://github.com/android/platform_external_esd.git external/esd
38.
git clone https://github.com/android/platform_external_emma.git external/emma
39.
git clone https://github.com/android/platform_external_dropbear.git external/dropbear
40.
git clone https://github.com/android/platform_external_apache-http.git external/apache-http
41.
git clone https://github.com/android/platform_external_openssl.git external/openssl
42.
git clone https://github.com/android/platform_external_sonivox.git external/sonivox
43.
git clone https://github.com/android/platform_packages_providers_telephonyprovider.git packages/providers/telephonyprovider
44.
git clone https://github.com/android/platform_packages_providers_downloadprovider.git packages/providers/downloadprovider
45.
git clone https://github.com/android/platform_packages_providers_contactsprovider.git packages/providers/contactsprovider
46.
git clone https://github.com/android/platform_packages_providers_calendarprovider.git packages/providers/calendarprovider
47.
git clone https://github.com/android/platform_packages_apps_voicedialer.git packages/apps/voicedialer
48.
git clone https://github.com/android/platform_packages_apps_stk.git packages/apps/stk
49.
git clone https://github.com/android/platform_packages_apps_soundrecorder.git packages/apps/soundrecorder
50.
git clone https://github.com/android/platform_packages_apps_phone.git packages/apps/phone
51.
git clone https://github.com/android/platform_packages_apps_packageinstaller.git packages/apps/packageinstaller
52.
git clone https://github.com/android/platform_packages_apps_music.git packages/apps/music
53.
git clone https://github.com/android/platform_packages_apps_mms.git packages/apps/mms
54.
git clone https://github.com/android/platform_packages_apps_htmlviewer.git packages/apps/htmlviewer
55.
git clone https://github.com/android/platform_packages_apps_email.git packages/apps/email
56.
git clone https://github.com/android/platform_packages_apps_contacts.git packages/apps/contacts
57.
git clone https://github.com/android/platform_packages_apps_camera.git packages/apps/camera
58.
git clone https://github.com/android/platform_packages_apps_calendar.git packages/apps/calendar
59.
git clone https://github.com/android/platform_packages_apps_calculator.git packages/apps/calculator
60.
git clone https://github.com/android/platform_packages_apps_browser.git packages/apps/browser
61.
git clone https://github.com/android/platform_hardware_ril.git hardware/ril
62.
git clone https://github.com/android/platform_external_zlib.git external/zlib
63.
git clone https://github.com/android/platform_external_yaffs2.git external/yaffs2
64.
git clone https://github.com/android/platform_external_tcpdump.git external/tcpdump
65.
git clone https://github.com/android/platform_external_tagsoup.git external/tagsoup
66.
git clone https://github.com/android/platform_external_srec.git external/srec
67.
git clone https://github.com/android/platform_external_sqlite.git external/sqlite
68.
git clone https://github.com/android/platform_external_skia.git external/skia
69.
git clone https://github.com/android/platform_external_safe-iop.git external/safe-iop
70.
git clone https://github.com/android/platform_external_ppp.git external/ppp
71.
git clone https://github.com/android/kernel_msm.git kernel/msm
72.
git clone https://github.com/android/platform_system_bluetooth.git system/bluetooth
73.
git clone https://github.com/android/platform_prebuilt.git prebuilt
74.
git clone https://github.com/android/platform_packages_providers_drmprovider.git packages/providers/drmprovider
75.
git clone https://github.com/android/platform_external_ping.git external/ping
76.
git clone https://github.com/android/platform_external_dbus.git external/dbus
77.
git clone https://github.com/android/tools_repo.git tools/repo
78.
git clone https://github.com/android/android.github.io.git android.github.io
79.
git clone https://github.com/android/platform_external_wpa_supplicant.git external/wpa/supplicant
80.
git clone https://github.com/android/platform_packages_apps_googlesearch.git packages/apps/googlesearch
81.
git clone https://github.com/android/platform_system_wlan_ti.git system/wlan/ti
82.
git clone https://github.com/android/platform_packages_providers_googlecontactsprovider.git packages/providers/googlecontactsprovider
83.
git clone https://github.com/android/platform_packages_apps_im.git packages/apps/im
84.
git clone https://github.com/android/platform_packages_providers_improvider.git packages/providers/improvider
85.
git clone https://github.com/android/platform_external_tremor.git external/tremor
86.
git clone https://github.com/android/platform_packages_apps_sync.git packages/apps/sync
87.
git clone https://github.com/android/platform_packages_apps_alarmclock.git packages/apps/alarmclock
88.
git clone https://github.com/android/platform_external_aes.git external/aes
89.
git clone https://github.com/android/platform_external_clearsilver.git external/clearsilver
90.
git clone https://github.com/android/platform_external_googleclient.git external/googleclient
91.
git clone https://github.com/android/platform_packages_apps_launcher.git packages/apps/launcher
92.
git clone https://github.com/android/platform_external_bluez.git external/bluez
93.
git clone https://github.com/android/platform_external_gdata.git external/gdata
94.
git clone https://github.com/android/platform_frameworks_opt_com.google.android.git frameworks/opt/com.google.android
95.
git clone https://github.com/android/platform_external_elfcopy.git external/elfcopy
96.
git clone https://github.com/android/platform_frameworks_policies_base.git frameworks/policies/base
97.
git clone https://github.com/android/platform_packages_apps_updater.git packages/apps/updater
98.
git clone https://github.com/android/platform_external_opencore.git external/opencore