Start playing around with lua for sync script

Lua coroutines look interesting for making it asynchronous, need to
investigate further.

home/scripts/sync-all.lua

@@ -0,0 +1,38 @@
+#!/usr/bin/env nix-shell
+--[[
+#!nix-shell -i lua -p git git-sync
+]]
+local config_home
+if os.getenv("XDG_CONFIG_HOME") then
+        config_home = os.getenv("XDG_CONFIG_HOME")
+else
+        config_home = "~/.config/"
+end
+
+local sync_mapping = {
+        ["~/.password-store"] = "https://git.xenia.me.uk/pixelifytica/pass.git",
+        ["~/.elfeed"] = "https://git.xenia.me.uk/pixelifytica/elfeed.git",
+        ["~/Documents/Org"] = "https://git.xenia.me.uk/pixelifytica/org.git",
+        ["~/Documents/References"] = "https://git.xenia.me.uk/pixelifytica/references.git",
+}
+
+local pull_mapping = {
+        ["/etc/nixos"] = "https://git.xenia.me.uk/pixelifytica/nixos.git",
+        [config_home .. "/emacs"] = "https://git.xenia.me.uk/pixelifytica/emacs.git",
+}
+
+local function git_sync(directory, url)
+        print("--- sync: " .. directory .. " ---")
+end
+
+local function git_pull(directory, url, ff_only)
+        print("--- pull: " .. directory .. " ---")
+end
+
+for directory, url in pairs(sync_mapping) do
+        git_sync(directory, url)
+end
+
+for directory, url in pairs(pull_mapping) do
+        git_pull(directory, url, true)
+end