gitFileRemoal

This is for removal of files before pushing to GIT repository during migration source from CVS using Cygwin's cvs2git module.

Secret Removal from file/s.

This is for removal of secret(password, ip, key, etc) from GIT repository using Cygwin's cvs2git module.

CVS to GIT with secret/s file removal

We usually have CVS hosted in-house and are nowadays moving to GIT either on cloud or GIT in-premise. When we move from on-premise to cloud, we would want to remove secrets(database username, password, IP addresses, etc) from code before moving to the cloud.

Cygwin and GIT are required for this.

Cygwin

You'll need the git, cvs2git and git-cvs packages.

CentOS

sudo yum install git-cvs

cvs import

This example uses the project1 project from CVS, but you can substitute any other module.

To avoid hammering the remote pserver, I just copied the CVS directory straight from the server to a local directory. You can specify the remote pserver as an argument to -d but it's rather slow.

Some basic steps for cvs to git conversion.

Step 1 - Copy Entire Repo To Local Disk

# use your own project and username...
module=project1
cvsusername=NidhiU
mkdir -p cvs/CVSROOT # CVS will consider cvs to be a valid repo now
scp -r $cvsusername@10.20.20.20:/usr/webdev/cvsroot/$module cvs

Where 10.20.20.20 = IP address of CVS server.

Step 2 - Run git cvs2git

cvs2git \
   --blobfile=cvs2svn-tmp/git-blob.dat \
   --dumpfile=cvs2svn-tmp/git-dump.dat \
   --username=$cvsUsername \
cvs/$cvsAppName
			
mkdir -p git/"$gitRepoName".git  && cd git/"$gitRepoName".git && git init --bare
cat  ../../cvs2svn-tmp/git-blob.dat  ../../cvs2svn-tmp/git-dump.dat | git fast-import
		
cd ../ && git clone "$gitRepoName".git  $gitRepoName && rm -rf "$gitRepoName".git  && cd $gitRepoName

Troubleshooting

Check Versions

Check git and CVS versions, and verify that your PATH isn't occluded, since we want to use pure cygwin binaries here.

 $ which git
/usr/bin/git
$ which cvs
/usr/bin/cvs

$ git --version
git version 2.17.0
$ cvs --version 

How to use these scripts

Step 1 - replace cvs and git credentials in start.sh file.

Step 2 - mention your secret files for removal into conversion.sh

./start.sh  or sh start.sh