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<h1 id="how-to-archive-large-files-with-gitlfs">How to archive large files with git-lfs</h1>
<p>In order to archive a big data such as map, training, network model, and image data,
We recommend that you use <code>git-lfs</code>command as a official process.
Note that github does not support uploading big files more than +100MB by default.
You do not need to operate your own development server to archive big files thanks to <code>git-lfs</code> facility.
However, as github.com charges for lfs, we cannot use it in nnsuite/testcases.
Please wait for AWS-nnsuite account activation for large files.</p>
<p>Git Large File Storage (LFS) replaces large files such as audio samples, videos, datasets, and graphics
with text pointers inside Git, while storing the file contents on a remote server like GitHub.com
or GitHub Enterprise. Note that Git LFS requires Git v1.8.5 or higher.</p>
<h1 id="install-gitlfs-package">Install git-lfs package</h1>
<p>Packagecloud (https://packagecloud.io) hosts <code>git-lfs</code> packages with apt/deb for popular Linux distribution such as Ubuntu.</p>
<pre><code class="language-bash">$ curl -s https://packagecloud.io/install/repositories/github/git-lfs/script.deb.sh | sudo bash
$ sudo apt install git-lfs
</code></pre>
<p>If you are using another Linux distribution such as Fedora, Please refer to the below webpage.</p>
<ul>
<li>Installing git-lfs: https://github.com/git-lfs/git-lfs/blob/v2.4.0/INSTALLING.md#installing-on-linux-using-packagecloud</li>
</ul>
<h1 id="case-study-tfvision_evaluationset-repository">Case study: TF-Vision_EvaluationSet Repository</h1>
<p>Note that default branch must be <code>tizen</code> instead of <code>master</code> in case of TAOS. We assume that you have to upload LibreOffice Installer
(251MB) in a github repository.</p>
<p>Clone the github repository with upstream and origin.</p>
<pre><code class="language-bash">$ mkdir TF-Vision_EvaluationSet
$ cd TF-Vision_EvaluationSet
$ git remote add upstream GITURL
$ git remote add origin GITURL
$ git fetch upstream
$ git pull upstream tizen
</code></pre>
<p>You need to setup the global Git hooks for Git LFS.</p>
<pre><code class="language-bash">$ git lfs install
$ wget http://mirrors.adams.edu/LibreOffice/win/LibreOffice_6.0.4_Win_x86.msi
</code></pre>
<p>Add all *.msi files through Git LFS.</p>
<pre><code class="language-bash">$ git lfs track "*.msi"
</code></pre>
<p>Now you are ready to push some commits</p>
<pre><code class="language-bash">$ git add LibreOffice_6.0.4_Win_x86.msi
$ git commit -m "add msi file"
</code></pre>
<p>You can confirm that Git LFS is managing your *.msi file.</p>
<pre><code class="language-bash">$ git lfs ls-files
# Push your files to the Git remote
$ git push origin <your-branch-name>
</code></pre>
<h1 id="how-to-remove-large-file-from-commit-history">How to remove large file from commit history</h1>
<ul>
<li>Method 1:</li>
</ul>
<pre><code class="language-bash">$ firefox https://rtyley.github.io/bfg-repo-cleaner/
$ java -jar bfg-x.x.x.jar --strip-blobs-bigger-than 100M
$ git repack && git gc
</code></pre>
<ul>
<li>Method 2:</li>
</ul>
<pre><code class="language-bash">$ git filter-branch --index-filter 'git rm --cached --ignore-unmatch *.data' -- --all
$ rm -Rf .git/refs/original
$ rm -Rf .git/logs/
$ git gc --aggressive --prune=now
$ git count-objects -v
</code></pre>
<h1 id="reference">Reference</h1>
<ul>
<li>Getting Started: https://github.com/git-lfs/git-lfs/tree/v2.4.0#getting-started</li>
<li>Git extension for versioning large files: https://git-lfs.github.com</li>
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