Minimal working POC

README.md

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+# c.sh
+
+## Installation
+
+```
+cd /opt/tools/c/
+git clone https://git.okoyono.de/f/c.sh.git
+cd c.sh
+ln -s motd.sh /etc/profile.d/
+cp gitignore /.gitignore
+echo "source /opt/tools/c/zsh.config" >> /root/.zshrc
+
+git init repo
+cd repo
+git config pager.diff false
+git config advice.addIgnoredFile false
+git config core.worktree /
+```
+
+## Usage
+
+```
+c help
+```
+

c.sh

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+#!/usr/bin/env bash
+
+[[ $# -eq 0 ]] && echo "no subcommand given" && exit 1
+
+WORKDIR="$(dirname "$(realpath "$0")")"
+PWD=`pwd`
+
+RESOURCE_TO_TRACK=""
+[[ $1 = "track" && $# -eq 2 ]] && RESOURCE_TO_TRACK="$(realpath "$2")"
+
+cd $WORKDIR
+
+case $1 in
+	"commit")
+		shift
+		MESSAGE="$*"
+		[[ "$MESSAGE" = "" ]] && MESSAGE="config.sh commit from $HOSTNAME"
+		git add --all
+		git commit -m "$MESSAGE"
+		;;
+
+	"track")
+		if [[ $# -ne 2 ]]; then
+			echo "no file or folder given"
+			exit 1
+		fi
+
+		# Check if there is a .git folder. If so, we need to temporary
+		# rename it, so we can track the file/folder.
+		GIT_DIR=
+		TRAVERSAL_PATH="$RESOURCE_TO_TRACK"
+		while [[ "$TRAVERSAL_PATH" != "/" ]]; do
+			if [[ -d "$TRAVERSAL_PATH/.git" ]]; then
+				GIT_DIR="$TRAVERSAL_PATH/.git"
+				break
+			fi
+			TRAVERSAL_PATH="$(dirname $TRAVERSAL_PATH)"
+		done
+
+		[[ "$GIT_DIR" != "" ]] && mv "$GIT_DIR" "$GIT_DIR.keep"
+		git add -v -f "$RESOURCE_TO_TRACK"
+		[[ "$GIT_DIR" != "" ]] && mv "$GIT_DIR.keep" "$GIT_DIR"
+		;;
+
+	"diff")
+		git status -s
+		git diff -p
+		;;
+
+	"revert")
+		echo "Not implemented"
+		;;
+
+	"log")
+		echo "Last changes:"
+		git log --pretty=format:'  * %cr: %s' | head -3
+		;;
+
+	*)
+		echo "pull   (pull the changes from git)"
+		echo "push   (push the changes to git)"
+		echo "track  (add a file or folder to git)"
+		echo "diff   (show unpushed changes)"
+		;;
+esac
+

gitignore

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+*

motd.sh

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+if [[ "$USER" = "root" ]]; then
+	/opt/tools/server-config/c.sh log
+fi
+

zsh.config

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+CSTATUS=""
+update_cstatus() {
+	git_stat=`cd /opt/tools/server-config/; git diff --shortstat | tr -c -d '[0-9,]'`
+	if [[ "$git_stat" = "" ]]; then
+		CSTATUS=""
+	else
+		stats=(${(@s:,:)git_stat})
+		CSTATUS="[%F{green}+${stats[2]}%f/%F{red}-${stats[3]}%f]"
+	fi
+}
+
+autoload -U add-zsh-hook
+add-zsh-hook preexec update_cstatus
+add-zsh-hook precmd update_cstatus
+
+setopt PROMPT_SUBST
+PS1='%T $CSTATUS %(?.%F{green}√.%F{red}?%?)%f %F{#666}%~%f %# '
+
+alias c="/opt/tools/server-config/c.sh"
+