Merge pull request #276 from yldio/sketch-precomiit

Sketch precommit hook

README.md

@@ -84,3 +84,20 @@ Code for the reusable UI framework.
 ### spikes
 
 Implementation examples from spikes, this directory is experimental and is likely broken.
+
+### Sketch Pre Commit
+
+A pre-commit hook has been added to generate a PNG shot of each .sketch file "page".
+
+To use, make sure the following are installed:
+- [Sketch Toolbox](http://sketchtoolbox.com/)
+- [Sketch Measure Plugin](https://github.com/utom/sketch-measure)
+
+
+Then add following to your `.git/config`
+
+```
+[diff "sketchtool"]
+    textconv = "sketchtool dump"
+    cachetextconv = true
+```

bin/generate-sketch-pngs

@@ -0,0 +1,57 @@
+#!/usr/bin/env ruby
+require 'fileutils'
+
+PROGNAME = 'pre-commit (auto-generate sketch previews)'
+
+def main
+  progress "Installing sketchtool"
+  system!(%W[/Applications/Sketch.app/Contents/Resources/sketchtool/install.sh])
+
+  progress "Looking for changed or added .sketch files"
+  diff_output = capture!(%W[git diff --name-only --cached --pretty=format:])
+  sketch_files = diff_output.split("\n").grep(/\.sketch\z/)
+  if sketch_files.empty?
+    progress "No sketch files to create preview images for in this commit!"
+  end
+  puts sketch_files
+
+  sketch_files.each do |f|
+    unless File.exist?(f)
+      progress "#{f} does not exist (anymore?)"
+      next
+    end
+
+    png_output_dir = f.sub(/\.sketch\z/, '') + '-sketch-previews'
+    progress "deleting old previews"
+    FileUtils.rm_rf(png_output_dir)
+
+    progress "exporting pages"
+    cmd = %W[sketchtool --overwriting=YES --output=#{png_output_dir} export pages #{f}]
+    system!(cmd)
+
+    progress "adding to git"
+    system!(%W[git add #{png_output_dir}])
+  end
+end
+
+def system!(cmd)
+  puts "running: #{cmd.join(' ')}"
+  abort failure_message(cmd) unless system(*cmd)
+end
+
+def capture!(cmd)
+  puts "capturing: #{cmd.join(' ')}"
+  result = IO.popen(cmd) { |io| io.read }
+  abort failure_message(cmd) unless $?.success?
+  result
+end
+
+def failure_message(cmd)
+  "#{PROGNAME}: command failed: #{cmd.join(' ')}"
+end
+
+def progress(msg)
+  puts "#{PROGNAME}: #{msg}"
+end
+
+main

design/Joyent activity feed.sketch

@@ -1,3 +0,0 @@
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-oid sha256:0f309ebcba76858ace475bd09b7a4e4350bc5b17484b2beb17d03191c264ae40
-size 5660672

design/Joyent service rollback.sketch

@@ -1,3 +0,0 @@
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-oid sha256:0165f3e1cb013ec3803e0728d192e22d6be2640d47e2b81a29754b39b73d3d42
-size 2170880

design/UI-Guidelines-14-02-2017.sketch

@@ -0,0 +1,3 @@
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+oid sha256:ca906f48160b64584963c313e35b57d2acf45b82e18ba783d8b198451a8e7bd6
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design/null/Joyent activity feed/Project: activity feed 1.1.2@0.0x.png

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design/null/Joyent activity feed/Project: activity feed 1.3.2@0.0x.png

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package.json

@@ -14,7 +14,7 @@
   },
   "scripts": {
     "test": "make test",
-    "precommit": "make -j4 lint",
+    "precommit": "./bin/generate-sketch-pngs && make -j4 lint",
     "prepush": "make test"
   },
   "dependencies": {