Implemented SCSS compilation

2026-07-30 09:43:05 -04:00 · 2021-02-20 18:03:53 +01:00
parent 88fed997f5
commit b65c40308d
16 changed files with 2018 additions and 230 deletions
--- a/tools/transform/index.ts
+++ b/tools/transform/index.ts
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2016-2021 Martin Donath <martin.donath@squidfunk.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+import * as fs from "fs/promises"
+import * as path from "path"
+import postcss from "postcss"
+import { Observable, defer, merge } from "rxjs"
+import {
+  endWith,
+  ignoreElements,
+  switchMap,
+  tap
+} from "rxjs/operators"
+import { render as sass } from "sass"
+import { promisify } from "util"
+
+import { base, mkdir } from "../resolve"
+
+/* ----------------------------------------------------------------------------
+ * Helper types
+ * ------------------------------------------------------------------------- */
+
+/**
+ * Transform options
+ */
+interface TransformOptions {
+  src: string                          /* Source file */
+  out: string                          /* Target file */
+  optimize?: boolean                   /* Optimize assets */
+}
+
+/* ----------------------------------------------------------------------------
+ * Data
+ * ------------------------------------------------------------------------- */
+
+/**
+ * Base directory for source maps
+ */
+const root = new RegExp(`file://${path.resolve(".")}/`, "g")
+
+/* ----------------------------------------------------------------------------
+ * Functions
+ * ------------------------------------------------------------------------- */
+
+/**
+ * Transform a stylesheet
+ *
+ * @param options - Options
+ *
+ * @returns File observable
+ */
+export function transformStyle(
+  { src, out, optimize }: TransformOptions
+): Observable<string> {
+  return defer(() => promisify(sass)({
+    file: src,
+    includePaths: [
+      "src/assets/stylesheets",
+      "node_modules/modularscale-sass/stylesheets",
+      "node_modules/material-design-color",
+      "node_modules/material-shadows"
+    ],
+    sourceMap: true,
+    sourceMapRoot: ".",
+    outFile: out
+  }))
+    .pipe(
+      switchMap(({ css, map }) => postcss([
+        require("autoprefixer"),
+        require("postcss-inline-svg")({
+          paths: [
+            `${base}/.icons`
+          ],
+          encode: false
+        }),
+        ...optimize ? [require("cssnano")] : []
+      ])
+        .process(css, {
+          from: src,
+          to: out,
+          map: {
+            prev: `${map}`.replace(root, ""),
+            inline: false
+          }
+        })
+      ),
+      tap(() => mkdir(path.dirname(out))),
+      switchMap(({ css, map }) => merge(
+        fs.writeFile(`${out}`, css),
+        fs.writeFile(`${out}.map`, map.toString())
+      )),
+      ignoreElements(),
+      endWith(out)
+    )
+}