viewer/build: use poll-based live reload in sandbox

Continuing to use a watch-based approach by default elsewhere.

3 files changed, 6 insertions, 0 deletions

diff --git a/flake.nix b/flake.nix
index 8a5fb99..6b7110a 100644
--- a/flake.nix
+++ b/flake.nix
@@ -164,6 +164,10 @@
     restrictNetwork = false;
     patchQemu9p = true;
     tools = devTools;
+    envVars = {
+      # File modification watch doesn't work through the VM for live reload.
+      VUE_APP_WEBPACK_WATCH_POLL = "1000";
+    };
     config = {
       # The viewer's build and devel server are resource-hungry.
       virtualisation.cores = 2;
diff --git a/viewer/.env.development b/viewer/.env.development
index 0d87cf4..7e9a240 100644
--- a/viewer/.env.development
+++ b/viewer/.env.development
@@ -1,3 +1,4 @@
 VUE_APP_DEVSERVER_PORT=8085
 VUE_APP_DEVSERVER_CONFIG_PATH=../example/
 VUE_APP_DATA_URL=~/
+VUE_APP_WEBPACK_WATCH_POLL=0
diff --git a/viewer/vue.config.js b/viewer/vue.config.js
index ef6d262..ffaaeee 100644
--- a/viewer/vue.config.js
+++ b/viewer/vue.config.js
@@ -41,6 +41,7 @@ module.exports = defineConfig({
     },
     watchOptions: {
       ignored: /node_modules/,
+      poll: parseInt(process.env.VUE_APP_WEBPACK_WATCH_POLL ?? 0),
     },
   },