1 files changed, 68 insertions, 0 deletions
diff --git a/packages/scripts/resources/lib/activate.inc.sh b/packages/scripts/resources/lib/activate.inc.sh
new file mode 100644
index 0000000..79bed6b
--- /dev/null
+++ b/packages/scripts/resources/lib/activate.inc.sh
@@ -0,0 +1,68 @@
+
+# non-interactive activate
+ __activate_env() {
+    for func in $(typeset -F | cut -f 3 -d ' ' | grep -E '^__env_'); do
+        if [[ "$func" == "__env_$1" ]]; then
+            $func
+            echo "Activated $1"
+            return 0
+        fi
+    done
+    echo "Error: Environment not found $1" >&2
+    return 1
+}
+
+# print all defined envs
+list_envs() {
+    for env in $(typeset -F | sed -n -e 's/^declare -f __env_//p'); do
+        active=false
+        for env_active in $ENV_ACTIVE; do
+            if [ "$env_active" == "$env" ]; then
+                active=true
+            fi
+        done
+        if $active; then
+            echo -n "${env}* "
+        else
+            echo -n "$env "
+        fi
+    done
+    echo ""
+}
+
+plain_list_envs() {
+    typeset -F | sed -n -e 's/^declare -f __env_//p'
+}
+
+# Interactive activate
+activate() {
+    err=false
+    for env in $*; do
+        if ! typeset -F | grep -q -E "^declare -f __env_${env}$"; then
+            echo "Environment not defined: $env"
+            err=true
+        fi
+    done
+    if $err; then
+        return 1
+    fi
+
+    for env in $*; do
+        if typeset -F | grep -q -E "^declare -f __env_${env}$"; then
+            export ENV_ACTIVE="$ENV_ACTIVE${ENV_ACTIVE:+ }$env"
+            __env_${env}
+        fi
+    done
+    echo "Active: $ENV_ACTIVE"
+}
+
+# initialization
+for env_request in $ENV_ACTIVE; do
+    __activate_env $env_request
+done
+
+# bash-completion for `activate'
+_activate() {
+    _init_completion -s || return
+    COMPREPLY=( $(compgen -W "$(list_envs)" -- $cur) )
+} && complete -F _activate activate