add req.sh

1 files changed, 25 insertions, 0 deletions

diff --git a/requirements/req.sh b/requirements/req.sh
new file mode 100755
index 0000000..335c322
--- /dev/null
+++ b/requirements/req.sh
@@ -0,0 +1,25 @@
+#!/bin/bash
+
+command="$1"
+script="$(dirname $0)/scripts/req-${command}"
+if [ -x "$script" ]
+then
+    shift 1
+    $script $@
+    exit 0
+fi
+
+if [ -f "$script" ]
+then
+    echo "$script is not executable. Try chmod +x $script and try again."
+    exit 1
+fi
+
+if [ -a "$script" ]
+then
+    echo "$script is not a regular file. Try replacing $script with an executable and try again."
+    exit 1
+fi
+
+echo "$script does not exist."
+exit 1