0.1.0-rc.3 • Public • Published


A simple library for inserting inline SVG into DOM. Comes with the builder!

Client side

Include browser/svgasset.svg somewhere in the page. svgAsset function appears in the global scope.

Client side API

Calling svgAsset() return a SVG DOM element that can be used in any way you want.

The signature is SVGAsset(/* str */ assetName, /* optional object or str */ attrs).

  • assetName is a name of the SVG asset;

  • attrs (optional) is a dictionary of attributes to set to element. If it's a string in format "width x height", it's the same as providing {"width": ..., "height": ...}.

But first you have to declare the assets themselves. It is done with svgAsset.register(/* object */ assets)

  • assets is a dictionary. Keys are asset names and values are corresponding HTML (SVG) strings.


Sure, creating and maintaining assets dictionary by hands is close to impossible. But you don't need to do it manually, there's a builder for that.

Builder as a module

Builder can be used in Node.js as a module. The require result is a function with following signature:

require('svgasset')(/* array of str */ filenames, /* optional object */ options)

  • filenames are filenames of SVG files to be included into dictionary. No magic wildcards are used here. Relative filenames will be resolved from currect directory (process.cwd(), not __dirname!).

  • options.writeBefore (optional) is a string or Buffer to be written before the dictionary.

  • options.writeAfter (optional) is similar to writeBefore.

Return value

Function returns ReadableStream that can be piped to any file descriptor or stdout/stderr.

In addition to all Stream interface there's some events emitted:

  • error when something bad is happened. All errors are recoverable and even if you have zillion of errors, output stream still would contain valid javascript (if errors were handled and didn't abort Node process).

  • progress reports filename being processed now. Useful for CLI application.

Builder as CLI application

If installed globally, this module can be called via command line interface.

svgasset-build [-o <output filename>] [-v] <filename> [, <filename>, ...]

  • -o or --output defines where output dictionary would be placed. Default is stdout.

  • -v or --verbose tells application to report what file is being processed right now. Reports end errors are written to stderr, not touching the stdout.

  • filenames are filenames. Detailed expaination is below.

Masks and includes

First of all, relative filenames are resolved from current directory.

Wildcards are supported (glob node module is used). So, svgasset-build my-app/images/**/*.svg is a perfectly valid input.

If a filename specified starts with @, it is considered to be a list: a text file containing filenames one per line. Anything between # and the end of the line is a comment.

List file even can inlude other list files, start them with @ char. Wildcards are also supported. Relative filenames in list files are resolved form the directory where list file is (like in CSS includes).

Example 1

I want to build all the SVGs in current directory and anything listed in prod-svgs.txt in the parent dir, and place output into svgs.js.

svgasset-build *.svg @../prod-svgs.txt -o svgs.js

Example 2

I want to do the same keeping my command line as simple as possible.

svgasset-build  @prod.txt -o svgs.js
# prod.txt

# Include all the SVGs

# Include another file

Example 3

I want to process file in current directory, its name starts with @, but it's not the list.

svgasset-build  ./@icon.svg -o svgs.js

Using CLI without installation

If you dont want to install svgasset-build globally, it can be called directly:

node <path-to-module>/bin/cli



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