rosdep update超时问题解决

此问题的解决也适用ros1

1、初始化

$ sudo rosdep init

2、下载rosdistro到本地

$ git clone https://github.com/ros/rosdistro.git

3、修改以下文件,将其url指向本地

（1）文件1：20-default.list

地址路径：/etc/ros/rosdep/sources.list.d/20-default.list

原来内容：

# os-specific listings first
yaml https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/osx-homebrew.yaml osx

# generic
yaml https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/base.yaml
yaml https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/python.yaml
yaml https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/ruby.yaml
gbpdistro https://raw.githubusercontent.com/ros/rosdistro/master/releases/fuerte.yaml fuerte

# newer distributions (Groovy, Hydro, ...) must not be listed anymore, they are being fetched from the rosdistro index.yaml instead

修改后：

# os-specific listings first
yaml file:///home/hqauto/workspace/rosdistro/rosdep/osx-homebrew.yaml osx

# generic
yaml file:///home/hqauto/workspace/rosdistro/rosdep/base.yaml
yaml file:///home/hqauto/workspace/rosdistro/rosdep/python.yaml
yaml file:///home/hqauto/workspace/rosdistro/rosdep/ruby.yaml
gbpdistro file:///home/hqauto/workspace/rosdistro/releases/fuerte.yaml fuerte

# newer distributions (Groovy, Hydro, ...) must not be listed anymore, they are being fetched from the rosdistro index.yaml instead

（2）文件2：/usr/lib/python2.7/dist-packages/rosdep2/main.py

地址路径：/usr/lib/python3/dist-packages/rosdep2/main.py

这里没有，不用修改。

（3）文件3：/usr/lib/python2.7/dist-packages/rosdep2/rep3.py
地址路径：/usr/lib/python3/dist-packages/rosdep2/rep3.py

原来内容：

REP3_TARGETS_URL = 'https://raw.githubusercontent.com/ros/rosdistro/master/releases/targets.yaml'dd

修改后：

REP3_TARGETS_URL = 'file:///home/hqauto/workspace/rosdistro/releases/targets.yaml'

（4）文件4：/usr/lib/python2.7/dist-packages/rosdistro/__init__.py

地址路径：/usr/lib/python3/dist-packages/rosdistro/__init__.py

原来内容：

DEFAULT_INDEX_URL = 'https://raw.githubusercontent.com/ros/rosdistro/master/index-v4.yaml'

修改后：

DEFAULT_INDEX_URL = 'file:///home/hqauto/workspace/rosdistro/index-v4.yaml'

4、rosdep update解决问题