[asterisk-dev] following asterisk with git-svn

[Tzafrir Cohen]

Hi

On Tue, Feb 17, 2009 at 12:18:23AM +0200, Tzafrir Cohen wrote:
> Hi
> 
> git-svn is an interface for the git version control system
> (http://git-scm.com/) . It basically creates a git copy of a subversion
> repository.

In the previous post I cloned the Asterisk repository with git. This
time let's look at a simpler task: dahdi-tools.

dahdi-tools has basically the same problem: the svn:external menuselect.
But it is generally much smaller and simpler.
So here is the adapted procedure. Note that I cheat.


# select a place under which to download the dahdi-tools tree.

  git svn clone -s http://svn.digium.com/svn/dahdi/tools dahdi-tools

(Again, format is similar to 'svn checkout'. Do not confuse 'git
checkout' with 'svn checkout')


# This will download the whole /trunk , /tags and /branches hirarchies 
# to a new git repository under asterisk/ . 
# This will take some time. If it stops: in the middle:
#cd dahdi-tools; git svn fetch --fetch-all

# Next make your repository more compact:
# FIXME: I now get a .git subdirectory of the size of 135MB . This seems
# overly large considering what I got a few monthes ago

  git repack -afd

# Now fix the menuselect bits. Here I cheat. menuselect controls
# exactly two dependencies: disabling sethdlc on some ancient systems, 
# and disabling dahdi_tool if there's no newt. I just make sure the hard 
# way I have both. At some stage it may bother me more and I'll adapt
# dummy-select.

> # One possible venue is to use submodules.
> # This would require setting a separate menuselect repository . And
> # fixing the submodule references in every new tag to point to the right
> # place. I gave up at this stage, and instead reimplememented menuselect
> 
  mkdir menuselect
  svn export http://svn.digium.com/svn/menuselect/trunk/contrib/Makefile-dummy menuselect/Makefile
  #svn export http://svn.digium.com/svn/menuselect/trunk/contrib/menuselect-dummy menuselect/menuselect
  make -C menuselect dummies
  ln -s /bin/true menuselect/menuselect
  #chmod +x menuselect/menuselect

# Next thing to do is ignore generated files. .gitignore is somewhat
# like svn:ignore . Though it is possible to use one at the top
# directory. Hence I decided to make it ignore itself as well:

cat <<EOF >.gitignore
# Ignoring .gitignore itself:
.gitignore
*.a
*.so
*.o
*.lo
*.o.d
*.lo.d
# For VIM users:
.*.swp
build_tools/menuselect-deps
config.log
config.status
dahdi_cfg
dahdi_diag
dahdi_monitor
dahdi_scan
dahdi_speed
dahdi_test
dahdi_tool
fxotune
fxstest
hdlcgen
hdlcstress
hdlctest
hdlcverify
makeopts
menuselect-tree
menuselect/
patgen
patlooptest
pattest
sethdlc
timertest
version.c
xpp/dahdi_genconf.8
xpp/dahdi_hardware.8
xpp/dahdi_registration.8
xpp/fpga_load
xpp/lsdahdi.8
xpp/perlcheck
xpp/test_parse
xpp/xpp_blink.8
xpp/xpp_sync.8
EOF

# Now let's generate tags that will point to the tags/* branches.
# e.g. tag 'v2.1.0.2' will point to the head of branch tags/2.1.0.2 .
# If you don't like the extra 'v', just edit the sed command.
git branch -r | grep tags/1 | sed -e 's"tags/\(.*\)"& v\1"' \
  | while read branch tag; do git tag $tag $branch; done

-- 
               Tzafrir Cohen
icq#16849755              jabber:tzafrir.cohen at xorcom.com
+972-50-7952406           mailto:tzafrir.cohen at xorcom.com
http://www.xorcom.com  iax:guest at local.xorcom.com/tzafrir