How to download google source code for android

问题

As you know, there is a list of several hundred projects in https://android.googlesource.com/. I'd like to download them all in windows machine. According to Google's document,

To install, initialize, and configure Repo:

$ curl https://storage.googleapis.com/git-repo-downloads/repo > ~/bin/repo
$ chmod a+x ~/bin/repo


To clone the entire platform, install repo, and run:

mkdir mydroid
cd mydroid
repo init -u https://android.googlesource.com/platform/manifest
repo sync

In my machine, however, I cannot "repo init" in Git Bash because it says it does not have python. I have python installed but git bash does not recognize it. Note that I set the python directory to the system path too. If anybody can give a tip, I would appreciate it. Thanks

UPDATE: I believe it's problem with new version of Git Bash for Windows. System path is not applied to Git Bash at all - I could easily test if system path worked with command prompt. Anyway, I tried this instead and it actually ran with error of course.

  /c/python27/python.exe  ../bin/repo init -u https://android.googlesource.com/platform/manifest

The error message is

 $ /c/python27/python.exe ../bin/repo init -u https://android.googlesource.com/platform/manifest
 Traceback (most recent call last):
   File "../bin/repo", line 91, in <module>
    import readline
 ImportError: No module named readline

OK. I passed this error by installing pyreadline in windows:

 easy_install pyreadline

If you got an error, you must install setuptools from

 http://pypi.python.org/pypi/setuptools#files

And finally ran the command again to get this:

$ repo init -u https://android.googlesource.com/platform/manifest
fatal: unable to start d:\mywork\dev\GoogleAndroid\working_dir\.repo\repo/main.py
fatal: [Errno 8] Exec format error

回答1:

With one click, download the latest code as .tar.gz file, from here https://android.googlesource.com/platform/frameworks/base/+archive/master.tar.gz, the android could be found under core folder

Edit
Alternative here:
http://grepcode.com/project/repository.grepcode.com/java/ext/com.google.android/android/

Just select the version then a download options within.

回答2:

If you consider, as an example, this other program "sympy" which also needs git bash and python, it is only a matter to add python to your PATH prior to launching the git bash session.

Install Python from:

http://python.org/download/

by downloading the "Python 2.7 Windows installer" (or Python 2.6 or 2.5) and running it.
Add python directory to your system environment path variable
(My Computer -> Advanced -> Environment Variables -> Path -> Edit).

Note that the repo script itself must be in the path, as mentioned in the Version Control page of android:

Repo is a repository management tool that we built on top of Git. Repo unifies the many Git repositories when necessary, does the uploads to our revision control system, and automates parts of the Android development workflow.
Repo is not meant to replace Git, only to make it easier to work with Git in the context of Android.
The repo command is an executable Python script that you can put anywhere in your path.

回答3:

This answer explains how to fix this error:

fatal: unable to start c:\path\.repo\repo/main.py
fatal: [Errno 8] Exec format error

Summary: I finally used the python packaged by Cygwin.
Details: Below is the full story.

The tip from the repo bug tracking is to add '/c/app/Python27/python ':

• line 136 in v1.20
  REPO_MAIN = '/c/app/Python27/python ' + S_repo + '/main.py'
• line 735 in v1.20 (beginning of function main)
  wrapper_path = '/c/app/Python27/python ' + os.path.abspath(__file__)

But we get the error TypeError: coercing to Unicode: need string or buffer, NoneType found

Therefore I reverted these changes above and performed the other changes below (on version 1.20):

• line 136, replaced single slash by double back-slash:
  REPO_MAIN = S_repo + '\\main.py'
• line 766, added python absolute path as first element of me:
  me = ['C:\\app\\Python27\\python.exe', repo_main,
'--repo-dir=%s' % rel_repo_dir,
'--wrapper-version=%s' % ver_str,
'--wrapper-path=%s' % wrapper_path,
'--']
• line 776, replaced os.execv(repo_main, me) by
  os.execv('C:\\app\\Python27\\python.exe', me)

However we get still an error:

$ Traceback (most recent call last):
  File "c:\path\.repo\repo\main.py", line 39, in <module>
    from subcmds.version import Version
  File "c:\path\.repo\repo\subcmds\__init__.py", line 36, in <module>
    ['%s' % name])
  File "c:\path\.repo\repo\subcmds\forall.py", line 17, in <module>
    import fcntl
ImportError: No module named fcntl

The Python v2.7 fcntl documentation says fcntl is available for platform Unix only.

I finally reverted again all changes in repo script and installed Cygwin including its python and git packages: it succeeded as a charm.

But, as the symlinks simulated by Cygwin are not recognized by the MSysGit, we have to use the Cygwin git. And GUIs on top of git are not fully compliant with Cygwin git...

(see also my other post)

Edit:
Cygwin can use native NTFS symlinks (just set CYGWIN=winsymlinks:native and be Admin). Therefore MSysGit can be used and any other GUI based on it :-)

来源：https://stackoverflow.com/questions/7047902/how-to-download-google-source-code-for-android