compile less files in docker

.dockerignore

@@ -2,3 +2,5 @@
 node_modules/
 build/
 .tool-versions
+*.css
+*.css.map

Dockerfile

@@ -8,6 +8,7 @@ RUN yarn install --frozen-lockfile
 
 COPY . .
 
+RUN ./compile-less.sh
 RUN yarn build
 
 FROM nginx as proxy

compile-less.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+echo "Compiling all LESS files to CSS"
+for file in src/**/*.less
+do
+    FROM=$file
+    TO=${file/.*/.css}
+    echo "$FROM --> $TO"
+    node_modules/less/bin/lessc "$FROM" "$TO"
+done

package.json

@@ -45,7 +45,7 @@
   },
   "devDependencies": {
     "@babel/plugin-proposal-private-property-in-object": "^7.21.11",
-    "less": "^4.1.3",
+    "less": "^4.2.0",
     "less-loader": "^11.1.3"
   }
 }

yarn.lock

@@ -6221,10 +6221,10 @@ less-loader@^11.1.3:
   resolved "https://registry.yarnpkg.com/less-loader/-/less-loader-11.1.3.tgz#1bb62d6ca9bf00a177c02793b54baac40f9be694"
   integrity sha512-A5b7O8dH9xpxvkosNrP0dFp2i/dISOJa9WwGF3WJflfqIERE2ybxh1BFDj5CovC2+jCE4M354mk90hN6ziXlVw==
 
-less@^4.1.3:
-  version "4.1.3"
-  resolved "https://registry.yarnpkg.com/less/-/less-4.1.3.tgz#175be9ddcbf9b250173e0a00b4d6920a5b770246"
-  integrity sha512-w16Xk/Ta9Hhyei0Gpz9m7VS8F28nieJaL/VyShID7cYvP6IL5oHeL6p4TXSDJqZE/lNv0oJ2pGVjJsRkfwm5FA==
+less@^4.2.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/less/-/less-4.2.0.tgz#cbefbfaa14a4cd388e2099b2b51f956e1465c450"
+  integrity sha512-P3b3HJDBtSzsXUl0im2L7gTO5Ubg8mEN6G8qoTS77iXxXX4Hvu4Qj540PZDvQ8V6DmX6iXo98k7Md0Cm1PrLaA==
   dependencies:
     copy-anything "^2.0.1"
     parse-node-version "^1.0.1"