1. Install SubGit tool according to the Installation guide.
   
   
2. Configure GitHub
   
   
   • Log in to GitHub and create a new repository:
     
     
   
    
3. Configure the local repository:
   
   

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

   > subgit.bat configure --layout auto --trunk TRUNK SVN_URL GIT_REPO

   where

   • SVN_URL   – URL to the SVN project.
   • GIT_REPO  – a path to the new Git repository where data from the SVN project will be imported to.

   • TRUNK     – a path, relative to SVN_URL, that leads to an SVN directory that plays the role of the main line of development.
      

     > subgit.bat configure --layout auto --trunk trunk http://example.com/svn/repository/project C:\repo.git SubGit version 3.2.4 ('Bobique') build #3670 Configuring writable Git mirror of remote Subversion repository: Subversion repository URL : http://example.com/svn/repository/project Git repository location : C:\repo.git Detecting peg location... Authentication realm: <http://example.com:80> Subversion Repository Username [user]: user Password for '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. CONFIGURATION SUCCESSFUL To complete SubGit installation do the following: 1) Adjust Subversion to Git branches mapping if necessary: C:\repo.git\subgit\config 2) Define at least one Subversion credentials in default SubGit passwd file at: C:\repo.git\subgit\passwd OR configure SSH or SSL credentials in the [auth] section of: C:\repo.git\subgit\config 3) Optionally, add custom authors mapping to the authors.txt file(s) at: C:\repo.git\subgit\authors.txt 4) Run SubGit 'install' command: subgit install "C:\repo.git"

     
     

   • Enable post-receive hook:

     > git config -f GIT_REPO\subgit\config svn.triggerSvnPostReceive true

     where

     • GIT_REPO  – a path to the new Git repository where data from the SVN project will be imported to.
        

   • Specify authors mapping

     Configure authors mapping in default authors mapping file:
     

     GIT_REPO\subgit\authors.txt

     Or change core.authors option so that it points to the global authors mapping file.

     Find more details about authors mapping in the Authors mapping article.

     
     

   • Specify a username and password that are used by SubGit to access the SCN repository. Edit passwd file:

     GIT_REPO\subgit\passwd

     By default, there's only subgit secret credential pair. Replace it with a username and its corresponding password.

     There are several methods to configure authentication to access SVN server, but we use a plain text password file here to simplify the guide. See more authentication methods in SVN Authentication if this method does not fit your needs.

     
     

4. Perform SubGit installation into local Git repository:

   > subgit.bat install GIT_REPO

   where

   • GIT_REPO – a path to the new Git repository where data from the SVN project will be imported to. 

   > subgit.bat install C:\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. INSTALLATION SUCCESSFUL Your copy of SubGit is not registered for repository at 'C:\repo.git'. Obtain registration key at http://www.subgit.com/ 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:
   
   

   • locate the folder where Git for Windows is installed to (usually C:\Program Files\Git) and open git-bash.exe:
     
     
     

   • step into newly created local Git repository 

     > cd GIT_REPO

     where

     • GIT_REPO – a path to the new Git repository where data from the SVN project will be imported to.
       
       

   • add a remote to the local Git repository:

     > git remote add github GITHUB_REPO

     where 

     • GITHUB_REPO – GitHub project URL.

     
     

   • enable caching your GitHub password in Git:

     > git config --global credential.helper wincred

     
     

   • push local repository content into GitHub repository: 

     > git push github --all --follow-tags --force

     
     

     > git push github --all --follow-tags --force Username for 'https://github.com': user Password for 'https://user@github.com': 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. To https://github.com/user/project.git * [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:

     > cp GIT_REPO/hooks/user-post-receive.sample GIT_REPO/hooks/user-post-receive > sed -i -- 's/exit 0/git push --all --follow-tags github/g' GIT_REPO/hooks/user-post-receive

     
     

   In order to maintain a reliable two-way mirror using the setup described above, Git users have to push their changes to the SubGit-managed Git repository rather than submitting changes to the GitHub repository directly.

   
   

6. Try and buy.

   Note: the trial period for SubGit mirror is 30 days, after that period you should buy a license key at https://subgit.com/pricing.

   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

   where

   • GIT_REPO – a path to the new Git repository where data from the SVN project will be imported to.

   $ sudo subgit register --key subgit.key C:\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). REGISTRATION SUCCESSFUL Thank you for registering SubGit! Visit http://www.subgit.com/ in case you have any questions and for more information on SubGit.

   
   

7. Get support.
   
   If you encounter any problems, see the following guides for more details:
   
   
   • SubGit configuration file reference
   • Authors mapping
   • Branches and tags mapping
   • Branches and tags mapping examples
    

Should you need assistance, don't hesitate to contact us at support@tmatesoft.com.