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SVN to GitHub mirror using SubGit

At the moment SubGit requires file-level access to Git repository which is not feasible with repositories hosted on GitHub. However, due to distributed nature of Git, one can establish reliable two-way mirror between SVN and SubGit-managed Git repository and then synchronize that Git repository with GitHub.

  1. Configure GitHub

    • login to GitHub and create new repository:

    Create new GitHub project

  2. Configure local server (the machine where Git repository will reside)

    • install Java Runtime environment:

      • for MacOS X download an appropriate JavaRE pack from the web site:

        double click on the *.dmg file, once mounted open the application and follow the installation wizard.

      • for RedHat family Linux:

        $ sudo yum install java

      • for Debian-based Linux:

        $ sudo apt-get install default-jre

      install SubGit binary:

      • On non-Debian Linux and MacOS X download universal binary: and unzip it:

        • for Linux:

          $ unzip

        • on MacOS X it should be unpacked automatically (if downloaded with Safari), but if it isn't - double-click on the

        on Debian family Linux (Debian/Ubuntu/Mint): download Debian package:

        fetch missing dependencies and install:

        $ sudo dpkg -i subgit3.2.4all.deb $ sudo apt-get install -f

      install Git to the local server:

      • on RHEL famylie Linux: $ yum install git

      • on Debian family Linux: $ apt-get install git

      • on MacOS X just try to run the tool in terminal: $ git if development tools weren't isntalled yet, this command will start installation wizard.

  3. Configure local repository

    • Run this command on behalf of the same user you use to serve Git repository:

      $ subgit-3.2.4/bin/subgit configure --layout auto --trunk trunk SVNURL GITREPO > To be added into pop-up cloud (when hovering on SVNURL and GITREPO): > > SVN_URL - URL to the SVN project. > > GIT_REPO - path to new Git repository where data from the SVN project will be imported to. see command example --> (to be placed in drop-down block): $ subgit-3.2.4/bin/subgit configure --layout auto --trunk trunk ./repo.git

      SubGit version 3.2.4 ('Bobique') build #3670

      Configuring writable Git mirror of remote Subversion repository: Subversion repository URL : Git repository location : ./repo.git

      Detecting peg location... Authentication realm: Subversion Repository Username [user]: user Password [user]: Peg location detected: r10248 project/trunk Fetching SVN history... Done. Growing trees... Done. Project origin detected: r1 project/trunk Building branches layouts... Done. Combing beards... Done. Generating SVN to Git mapping... Done.


      To complete SubGit installation do the following:

      1) Adjust Subversion to Git branches mapping if necessary: /home/user/repo.git/subgit/config 2) Define at least one Subversion credentials in default SubGit passwd file at: /home/user/repo.git/subgit/passwd OR configure SSH or SSL credentials in the [auth] section of: /home/user/repo.git/subgit/config 3) Optionally, add custom authors mapping to the authors.txt file(s) at: /home/user/repo.git/subgit/authors.txt 4) Run SubGit 'install' command: subgit install ./repo.git For complete subgit configure reference see Import book

    • Enable post-receive hook: $ git config -f GITREPO/subgit/config svn.triggerSvnPostReceive true > **To be added into pop-up cloud (when hovering on GITREPO): > > GIT_REPO** - path to new Git repository where data from the SVN project will be imported to.

    • Specify authors mapping

      Update GIT_REPOS/subgit/authors.txt file or change core.authors option to point to global authors mapping

      Find more details about authors mapping in Import book

    • There are several methods to configure authentication to access SVN server, but we use plain text password file here to simplify the guide. If this method does not fit your needs - find authentication details in Remote book.

    Specify an username and password to be used by SubGit in subgit/passwd file. By default, there's the 'subgit secret' credential pair in the file; replace it by 'user password' pair to be used to access SVN server by SubGit.

  4. Perform SubGit installation into local Git repository:

    • Install SubGit into the repository by the command:

      $ subgit-3.2.4/bin/subgit install GIT_REPO

      see command example --> (to be placed in drop-down block):

      $ subgit install /home/user/repo.git

      SubGit version 3.2.4 ('Bobique') build #3670

      Translating Subversion revisions to Git commits...

      Subversion revisions translated: 10248. Total time: 2 hours 15 minutes 23 seconds.


      Your copy of SubGit is not registered for repository at '/home/user/repo.git'.

      Obtain registration key at and register SubGit with 'register' command; registration is free for Open Source, Educational and Startup projects.

      To uninstall SubGit use 'uninstall' command.

  5. Sync local Git repository with GitHub

    • step into newly created local Git repository $ cd GIT_REPO

    • add remote to the local Git repository $ git remote add github GITHUBREPO > **To be added into pop-up cloud (when hovering on GITHUBREPO): > > GITHUB_REPO** - GitHub remote repository URL

see command example --> (to be placed in drop-down block):

$ git remote add github
    - enable caching your GitHub password in Git:
        - in Linux:
               $ git config --global credential.helper cache
        - in MacOS X:
               $ git config --global credential.helper osxkeychain    
    - push local repository content into GitHub repository
            $ git push github --all --follow-tags
    you'll be asked for GutHub credentials; once provided they will be cached for future push requests.

see command example --> (to be placed in drop-down block):

$ git push github --all --follow-tags
            Username for '': user
            Password for '': 
            Counting objects: 212, done.
            Delta compression using up to 2 threads.
            Compressing objects: 100% (193/193), done.
            Writing objects: 100% (212/212), 19.24 KiB | 0 bytes/s, done.
            Total 212 (delta 109), reused 0 (delta 0)
            remote: Resolving deltas: 100% (109/109), done.
             * [new branch]      Lib_test -> Lib_test
             * [new branch]      ano_branch -> ano_branch
             * [new branch]      another_full -> another_full
             * [new branch]      br_rev31 -> br_rev31
             * [new branch]      br_rev33 -> br_rev33
             * [new branch]      br_rev35 -> br_rev35
             * [new branch]      br_rev37 -> br_rev37
             * [new branch]      branch_rev27 -> branch_rev27
             * [new branch]      branch_rev27_1 -> branch_rev27_1
             * [new branch]      bugs/b_4517 -> bugs/b_4517
             * [new branch]      bugs/rev39_b1 -> bugs/rev39_b1
             * [new branch]      bugs/rev39_b2 -> bugs/rev39_b2
             * [new branch]      feat_4489 -> feat_4489
             * [new branch]      features/feat_4510 -> features/feat_4510
             * [new branch]      features/feat_5612 -> features/feat_5612
             * [new branch]      features/feat_5614 -> features/feat_5614
             * [new branch]      features/rev39_f1 -> features/rev39_f1
             * [new branch]      features/rev39_f2 -> features/rev39_f2
             * [new branch]      full_branch -> full_branch
             * [new branch]      john_br -> john_br
             * [new branch]      master -> master
             * [new branch]      new_branch -> new_branch
             * [new branch]      snapshots/rev39_s1 -> snapshots/rev39_s1
    - create post-receive hook script and make it executable:
            $ echo 'git push --all --follow-tags github' > GIT_REPO/hooks/user-post-receive
            $ chmod ug+x GIT_REPO/hooks/user-post-receive

In order to maintain reliable two-way mirror using setup described above, Git users have to push their changes to SubGit-managed Git repository rather than submitting changes to GitHub repository directly. If nevertheless you need to fetch changes from GitHub - follow the instruction in GitHub mirror full guide.

  1. Try and buy

Note: trial period for SubGit mirror is 30 days, after that period you should buy a license key at

Once you receive an email with a license key, upload this license key to your server and run the following command:

$ sudo subgit register --key subgit.key GIT_REPO

see command example --> (to be placed in drop-down block):

$ sudo subgit register --key subgit.key /home/user/repo.git

        SubGit version 3.2.4 ('Bobique') build #3670

        Registration information:

            Registered for:       Example company
            Purchase ID:          OS-111111111111111
            Expiration date:      April 23, 2028

            You may use this key to register 9 more repositories (out of 10).


        Thank you for registering SubGit!
        Visit in case you have any questions and for more information on SubGit.

Would you have any assistance, don't hesitate to contact us at

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