feat: Add shell script to check if dependencies are up-to-date

diff-deps.fish

@@ -0,0 +1,29 @@
+#!/usr/bin/env fish
+
+function get_remote_master
+    git ls-remote "$argv[1]" | \
+        grep 'refs/heads/master' | \
+        awk '{print $1}'
+end
+
+function list_deps
+    grep '"git"' -B2 kontemplate.frm | \
+    grep -P -o '(?<=silo: ")https://.+(?=")'
+end
+
+function diff_dep
+    set -l current (grep -B1 "$argv[1]" kontemplate.frm | grep -P -o '(?<=hash: ").+(?=")')
+    set -l remote (get_remote_master "$argv[1]")
+
+    if [ $current != $remote ]
+        echo "$argv[1]"
+        echo -e "current:\t$current"
+        echo -e "remote:\t\t$remote\n"
+    else
+        echo -e "$argv[1] up to date\n"
+    end
+end
+
+for dep in (list_deps)
+    diff_dep $dep
+end