automatically derive image version

2020-07-19 23:53:40 -07:00
parent df7b5416e6
commit 7d62be1781
3 changed files with 12 additions and 7 deletions
@@ -0,0 +1,10 @@
+#!/bin/sh
+# this script emits as hash for the files listed in $@
+if command -v shasum >/dev/null 2>&1; then
+  cat "$@" | shasum -a 256 | cut -d' ' -f1
+elif command -v sha256sum >/dev/null 2>&1; then
+  cat "$@" | sha256sum | cut -d' ' -f1
+else
+  echo "missing shasum tool" 1>&2
+  exit 1
+fi