add two scripts for better global usage

one script is a wrapper around clm, and detects where StdEnv is. The
user can for instance copy StdEnv into their CWD, and clm will use this
directly.

the other script (clenv) allows to user to pro-actively copy StdEnv into
their home directory.

1 files changed, 56 insertions, 0 deletions

diff --git a/clenv.sh b/clenv.sh
new file mode 100644
index 000000000000..080a2b81928f
--- /dev/null
+++ b/clenv.sh
@@ -0,0 +1,56 @@
+#!/usr/bin/env bash
+
+# this script creates a copy of the current system-level
+# StdEnv files of the Clean distribution and places them
+# in the users home directory (under .local)
+
+_install_dir="$HOME/.local/lib"
+
+usage () {
+    echo "USAGE: clenv [cmd]" >&2
+    echo ""
+    echo "Commands: status, init, deinit"
+}
+
+if [ $# -lt 1 ]; then
+    usage
+    exit 0
+fi
+
+case $1 in
+    status)
+        if [ ! -d "$_install_dir/StdEnv" ]; then
+            echo "not initilised"
+        else
+            echo "initilised"
+        fi
+        ;;
+    init)
+        if [ -d "$_install_dir/StdEnv" ]; then
+            echo -n "already initilised, overwrite? [Y/n]: "
+            read -r yn
+            if [ "$yn" != "${yn#[Yy]}" ] ;then
+                rm -rf "$_install_dir/StdEnv"
+                cp -r /usr/lib/StdEnv "$_install_dir"
+                echo "done"
+            fi
+        else
+            [ -d "$_install_dir" ] || mkdir -p "$_install_dir"
+            cp -r /usr/lib/StdEnv "$_install_dir"
+            echo "done"
+        fi
+        ;;
+    deinit)
+        if [ ! -d "$_install_dir/StdEnv" ]; then
+            echo "not initilised, nothing to do :("
+        else
+            rm -rf "$_install_dir/StdEnv"
+            echo "done"
+        fi
+        ;;
+    *)
+        echo "unknown command..."
+        usage
+        exit 1
+        ;;
+esac