From efaf7e9a8804c9f376bacf9fb64ecdb4dc108168 Mon Sep 17 00:00:00 2001
From: Gregor Kleen <gkleen@yggdrasil.li>
Date: Wed, 11 Oct 2017 15:23:04 +0200
Subject: git-sync in /nix/store

---
 ymir.nix | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/ymir.nix b/ymir.nix
index 2d6fac63..b1adc5d4 100644
--- a/ymir.nix
+++ b/ymir.nix
@@ -891,7 +891,28 @@ in rec {
       [directory-sync]
       directory=/var/lib/infinoted/dirsync
       interval=5
-      hook=/var/lib/infinoted/git-sync.sh
+      hook=${pkgs.writeScript "git-sync.sh" ''
+        #!${pkgs.zsh}/bin/zsh
+
+        repository=$(git -C ${2:h} rev-parse --show-toplevel)
+        [[ $? -eq 0 ]] || exit 0
+
+        git() {
+            $(whence -cp git) -C ${repository} ${@}
+        }
+
+        typeset -a changeSet
+        changeSet=()
+        git diff -z --name-only | \
+            while IFS= read -r -d $'\0' change; do changeSet=(${changeSet} ${change}); done
+
+        [[ ${changeSet[(i)$(realpath ${2} --relative-to=${repository})]} -le ${#changeSet} ]] || exit 0
+
+        commitMessage=$(printf "%s modified via infinoted" $(realpath ${2} --relative-to=${repository}))
+        git add ${2}
+        git commit -m ${commitMessage} --no-edit ${2}
+        git push
+      ''}
     '';
   };
 
-- 
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