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190 lines
5.4 KiB
190 lines
5.4 KiB
Copyright (C) 2009 The Android Open Source Project
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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Subject: How to get the android source code using Cygwin and Git
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Date: 2009/04/27
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Updated: 2009/05/21
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Updated: 2010/03/30
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Table of content:
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1- Goals and Requirements
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2- Getting the code, the simple way
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3- SSH issues
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4- Advanced Tricks
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-------------------------
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1- Goals and Requirements
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-------------------------
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This document explains how to checkout the Android source from the git
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repositories under Windows.
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As stated in development/docs/howto_build_SDK.txt, one can't build the whole
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Android source code under Windows. You can only build the SDK tools for
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Windows.
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There are a number of caveats in checking out the code from Git under Windows.
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This document tries to explain them.
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First you will need to meet the following requirements:
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- You must have Cygwin installed. But wait! You CANNOT use the latest Cygwin 1.7.
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Instead you MUST use the "legacy Cygwin 1.5" that you can find at this page:
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http://cygwin.org/win-9x.html
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Don't mind the page title, just grab setup-legacy.exe and it will works just fine
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under XP or Vista.
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- You must install Cyginw using the "Unix / Binary" mode.
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If you don't do that, git will fail to properly compute some SHA1 keys.
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- You need the "git" and "curl" packages to checkout the code.
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If you plan to contribute, you might want to get "gitk" also.
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Note: if you want to build the SDK, check the howto_build_SDK.txt file
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for a list of extra required packages.
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The short summary is that you need at least these:
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autoconf, bison, curl, flex, gcc, g++, git, gnupg, make, mingw-zlib, python, unzip, zip
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and you must avoid the "readline" package.
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-----------------------------------
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2- Getting the code, the simple way
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-----------------------------------
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Out of the box, "repo" and "git" will work just fine under Cygwin:
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$ repo init -u git://android.git.kernel.org/platform/manifest.git
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$ repo sync
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And you're done. You can build as explained in howto_build_SDK.txt and ignore
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the rest of this document.
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-------------
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3- SSH issues
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-------------
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If you maintain your own private repository using an SSH server, you might get
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some "mux/ssh" errors. In this case try this:
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$ repo init -u ssh://my.private.ssh.repo/platform/manifest.git
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$ export GIT_SSH=ssh
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$ repo sync
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------------------
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4- Advanced Tricks
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------------------
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There is one remaining issue with the default repo/git options:
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If you plan on contributing, you will notice that even after a fresh "repo
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sync" some projects are marked as having modified files. This happens on the
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"bionic" and the "external/iptables" project. The issue is that they have files
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which have the same name yet differ only by their case-sensitivity. Since the
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Windows filesystem is not case-sensitive, this confuses Git.
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Solution: we can simply ignore these projects as they are not needed to build
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the Windows SDK.
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To do this you just need to create a file .repo/local_manifest.xml that
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provides a list of projects to ignore:
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<?xml version="1.0" encoding="UTF-8"?>
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<manifest>
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<remove-project name="platform/external/iptables" />
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</manifest>
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The other thing we can do is tell git not to track the files that cause
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problems:
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cd bionic
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git update-index --assume-unchanged \
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libc/kernel/common/linux/netfilter/xt_CONNMARK.h \
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libc/kernel/common/linux/netfilter/xt_MARK.h \
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libc/kernel/common/linux/netfilter_ipv6/ip6t_HL.h
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cd external/tcpdump;
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git update-index --assume-unchanged \
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tests/print-X.new \
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tests/print-XX.new
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Here's a script that takes care of all these details. It performs the repo
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init, creates the appropriate local_manifest.xml, does a repo sync as
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needed and tell git to ignore the offending files:
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------------
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#!/bin/bash
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set -e # fail on errors
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URL=ssh://android-git.corp.google.com:29418/platform/manifest.git
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BRANCH=donut
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if [ "$1" == "-b" ]; then shift; BRANCH=$1; shift; fi
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# repo init if there's no .repo directory
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if [[ ! -d .repo ]]; then
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repo init -u $URL -b $BRANCH
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fi
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# create a local_manifest to exclude projects that cause problems under Windows
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# due to the case-insenstivines of the file system.
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L=.repo/local_manifest.xml
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if [[ ! -f $L ]]; then
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cat > $L <<EOF
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<?xml version="1.0" encoding="UTF-8"?>
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<manifest>
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<remove-project name="platform/external/iptables" />
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</manifest>
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EOF
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fi
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# sync using the native ssh client if necessary
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[[ $URL != ${URL/ssh/} ]] && export GIT_SSH=ssh
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repo sync $@
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# These files cause trouble too, we need to ignore them
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(cd bionic;
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git update-index --assume-unchanged \
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libc/kernel/common/linux/netfilter/xt_CONNMARK.h \
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libc/kernel/common/linux/netfilter/xt_MARK.h \
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libc/kernel/common/linux/netfilter_ipv6/ip6t_HL.h
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)
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(cd external/tcpdump;
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git update-index --assume-unchanged \
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tests/print-X.new \
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tests/print-XX.new
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)
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------------
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Simply extract this to a "my_sync.sh" file and try the following:
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$ mkdir android_src
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$ cd android_src
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$ chmod +x mysync.sh
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$ ./mysync.sh
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-end-
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