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====== Git Topics ======

==== Installing git-lfs on Ubuntu ====
  * Some basic pre-requisites: <code>apt install software-properties-common</code>
  * Set up repository: <code>curl -s https://packagecloud.io/install/repositories/github/git-lfs/script.deb.sh | bash</code>
  * Install from repository: <code>apt install git-lfs</code>
  * Each user will need to do: ''git lfs install''

==== Some history/view tips ====
  * Show basic history for a file:<code>git log --all -- path/to/file.ext</code>
  * Show all pull/push activity:<code>git reflog show --date=iso origin/master</code>
  * Show commit hash and comment<codegit log --abbrev-commit --pretty=oneline 228d0ae de36d78
git log --pretty=oneline 228d0ae de36d78</code>
  * Show everything in the commit for hash<code>git show d9ekhg9alk239d94dkd949dksc0dkgkls90fds93</code>
  * Show commit info for hash<code>git show d9ekhg9alk239d94dkd949dksc0dkgkls90fds93 | head -6</code>
  * Show files changed for commit<code>git show d9ekhg9alk239d94dkd949dksc0dkgkls90fds93 | grep "^diff --git"</code>

==== Rename a tag ====
<code>
git tag new old
git tag -d old
git push origin :refs/tags/old
git push --tags
</code>
// The colon in the push command removes the tag from the remote repository. If you don't do this, git will create the old tag on your machine when you pull. // \\
 \\
Ensure that the other developers/users remove the deleted tag by running the following command:
<code>git pull --prune --tags</code>

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==== Locking master branch ====
  * In ./git/hooks/update before section # --- Config:<code>
	if [ "$refname" == "refs/heads/master" ]; then
		if [ "$USER" != "<someadminuser>" ]; then
			echo "POLICY: you are not allowed to change the master branch !"
			exit 1
		else
			echo "POLICY: $USER allowed to change the master branch ..."
		fi
	fi
</code>
  * ''git config receive.denyCurrentBranch ignore''
  * Edit .git/description

==== Misc: set active branch in bare repo ====
''git symbolic-ref HEAD refs/heads/thebranch''


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// Links: [[tech:start|Tech Info]] ... [[tech:devops:start|Devops Info]] // \\
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