1 files changed, 34 insertions, 0 deletions
diff --git a/guides/sysadmin/apps-demo/activate b/guides/sysadmin/apps-demo/activate
new file mode 100644
index 0000000..b8c9138
--- /dev/null
+++ b/guides/sysadmin/apps-demo/activate
@@ -0,0 +1,34 @@
+# Hey Emacs; this is a -*- shell-script -*-.
+# Hopefully invoked by bash 🤞
+
+_apps_dir=$(realpath --no-symlinks $(dirname ${BASH_SOURCE}))
+
+_apps_PATH=$(
+    shopt -s nullglob
+    bins=( "${_apps_dir}"/*/bin )
+    IFS=: eval 'echo "${bins[*]}"'
+)
+export PATH=${_apps_PATH}:${PATH}
+
+_apps_XDG_DATA_DIRS=$(
+    shopt -s nullglob
+    # We could set globstar and let Bash loose, searching the depths
+    # of _apps_dir for
+    # **/{applications/*.desktop,systemd/user/*.service}
+    # but it seems like asking for trouble.  Make some assumptions
+    # about where applications typically dump their XDG-related files.
+    datadirs=($(
+        {
+            for dkentry in "${_apps_dir}"/*/share/applications/*.desktop
+            do
+                echo ${dkentry%/applications/*.desktop}
+            done
+            for unit in "${_apps_dir}"/*/lib*/systemd/user/*.service
+            do
+                echo ${unit%/systemd/user/*.service}
+            done
+        } | sort -u
+    ))
+    IFS=: eval 'echo "${datadirs[*]}"'
+)
+export XDG_DATA_DIRS="${_apps_XDG_DATA_DIRS}:${XDG_DATA_DIRS:-/usr/local/share:/usr/share}"