Moved new build process out of gulp folder

build/asset.js

@@ -0,0 +1,135 @@
+
+const path = require('path');
+const { pick } = require('lodash');
+const actions = require('./actions');
+const File = require('./file');
+const { TYPE } = require('./resolve');
+const getImageDimensions = require('./lib/dimensions');
+const getVideoDimensions = require('get-video-dimensions');
+
+const RESOLUTIONS = [ 2048, 1024, 768, 576, 300, 100 ];
+
+module.exports = exports = class Asset extends File {
+
+  constructor (filepath) {
+    super(filepath);
+
+    this.serializable.push(
+      'dimensions',
+      'sizes',
+    );
+  }
+
+  load () {
+    switch (this.type) {
+    case TYPE.VIDEO: return this.loadVideo();
+    case TYPE.IMAGE: return this.loadImage();
+    default:
+    }
+  }
+
+  async loadImage () {
+
+    const { width, height } = await getImageDimensions(this.input);
+
+    const ratioH = Math.round((height / width) * 100);
+    const ratioW = Math.round((width / height) * 100);
+    let orientation = 'wide';
+    if (ratioH > 100) {
+      orientation = 'tall';
+    } else if (ratioH === 100) {
+      orientation = 'square';
+    }
+
+    this.dimensions = {
+      width,
+      height,
+      ratioH,
+      ratioW,
+      orientation,
+    };
+
+    if (this.preprocessed) {
+      this.sizes = [ {
+        output: this.out,
+        url: this.url,
+        width,
+        height,
+      } ];
+    } else {
+      this.sizes = [
+        {
+          output: this.out,
+          url: this.url,
+          width,
+          height,
+        },
+      ];
+
+      for (const w of RESOLUTIONS) {
+        if (w > width) continue;
+        const name = `${this.name}.${w}w${this.ext}`;
+        this.sizes.push({
+          output: path.join(this.base, name),
+          url:    path.join(this.dir,  name),
+          width: w,
+          height: Math.ceil((w / width) * height),
+        });
+      }
+
+      this.sizes.reverse();
+    }
+
+    return this;
+  }
+
+  async loadVideo () {
+    const { width, height } = await getVideoDimensions(this.input);
+
+    const ratioH = Math.round((height / width) * 100);
+    const ratioW = Math.round((width / height) * 100);
+    let orientation = 'wide';
+    if (ratioH > 100) {
+      orientation = 'tall';
+    } else if (ratioH === 100) {
+      orientation = 'square';
+    }
+
+    this.dimensions = {
+      width,
+      height,
+      ratioH,
+      ratioW,
+      orientation,
+    };
+
+    this.sizes = [ {
+      output: path.join(this.base, this.basename),
+      url:    path.join(this.dir,  this.basename),
+      width,
+      height,
+    } ];
+
+    return this;
+  }
+
+  webready () {
+    const { type, name, sizes } = this;
+    return {
+      type,
+      name,
+      sizes: sizes.map((s) => pick(s, [ 'url', 'width', 'height' ])),
+    };
+  }
+
+  tasks () {
+    return this.sizes.map(({ output, width }) => ({
+      input: this.input,
+      output,
+      format: this.preprocessed ? undefined : this.ext.slice(1),
+      width:  this.preprocessed ? undefined : width,
+      action: this.preprocessed ? actions.copy : actions.image,
+    }));
+  }
+
+};