1 files changed, 13 insertions, 0 deletions
diff --git a/debian/.local/bin/ifinstalled b/debian/.local/bin/ifinstalled
new file mode 100755
index 0000000..2f9653f
--- /dev/null
+++ b/debian/.local/bin/ifinstalled
@@ -0,0 +1,13 @@
+#!/bin/sh
+
+# Some optional functions in THESIAH require programs not installed by default. I
+# use this little script to check to see if a command exists and if it doesn't
+# it informs the user that they need that command to continue. This is used in
+# various other scripts for clarity's sake.
+
+for x in "$@"; do
+  if ! command -v "$x" >/dev/null 2>&1; then
+    echo "📦 $x must be installed and in PATH." >&2
+    exit 1
+  fi
+done