initial commit

assets/style.css

@@ -0,0 +1,18 @@
+.seasons { -webkit-transform:translateZ(0); }
+.seasons .seasons-line { -webkit-transition:top 0.5s linear; position:absolute; top:0px; left:20px; }
+
+.seasons-line.active { display:block; }
+.seasons-line.inactive { display:none !important; }
+
+.seasons-line:before { 
+  content:attr(data-line);
+  color:#666;
+  display:inline-block;
+  visibility:visible;
+  width:0px;
+  left:-20px;
+  position:relative;
+}
+
+.seasons-keyword { color:#336633; }
+.seasons-literal { color:#660000; }

bin/build_seasons

@@ -0,0 +1,73 @@
+#!/bin/bash
+
+pushd `pwd`
+
+file=$1
+dir=`dirname $file`
+cd $dir
+
+abspath=`pwd`
+
+while [ ! -d ./.git ]; do
+    cd ..
+done
+
+dir=`pwd`
+local=`echo $abspath | sed -e "s:$dir:.:g"`/`basename $file`
+
+commits=`git log --pretty=format:%H $local`
+i=0
+results=""
+
+for commit in $commits; do
+    data=`git show $commit:$local`
+    msg=`git log --pretty=format:%B $commit...$commit~1`
+
+    result=`echo "$commit:::$msg:::$data:::$i" | node -e "
+        data = []
+        process.stdin.on('data', data.push.bind(data))
+        process.stdin.on('end', ready)
+        process.stdin.resume()
+
+        function ready() {
+            data = data.join('').split(':::')
+            commit = data[0]
+            msg = data[1]
+            file = data[2]
+            idx = data[3]
+
+            data = {idx:~~idx, commit:commit, msg:msg, data:file.split('\n')}
+            process.stdout.write(JSON.stringify(data))
+        }
+    "`
+
+    results="$result,$results"
+    i=$(($i + 1))
+    echo $i
+done
+
+popd
+
+echo "$results" | node -e "
+    data = []
+    process.stdin.on('data', data.push.bind(data))
+    process.stdin.on('end', ready)
+    process.stdin.resume()
+
+    function ready() {
+
+        data = JSON.parse('['+data.join('').slice(0, -2)+']').reverse()
+        var crypto = require('crypto')
+          , fs = require('fs')
+
+        data.forEach(function(commit) {
+            var lines = commit.data
+            commit.data = lines.map(function(line, idx) {
+                var hash = crypto.createHash('sha1').update(line.slice().trim()).digest('hex')
+                return {'hash':hash, 'line':line, 'num':idx+1}
+            })
+        })
+
+        fs.writeFileSync('output.json', JSON.stringify(data))
+    }
+"

lib/seasons.js

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+if(typeof define === 'undefined')
+  define = function(fn) { module.exports = fn() } 
+
+define(function(require) {
+  var ddd = require('d3')
+
+  if(typeof ddd == 'undefined') {
+    ddd = window.d3
+  }
+
+  return function(id, data, highlighter) {
+    var current = 0
+
+    id = id.charAt(0) === '#' ? id : '#'+id
+
+    on_state(current)
+
+    return function() {
+      if(arguments.length == 0) {
+        return current
+      } else {
+        on_state(current = arguments[0])
+        return current
+      }
+    }
+
+    function on_state(idx) {
+      var pre = ddd.select(id)
+        , max = data[idx].data.length.toString().length * 10 + 20
+
+      // updates
+      var line = pre
+        .selectAll('.seasons-line')
+        .data(data[idx].data, key_fn)
+        .attr('class', 'active seasons-line')
+        .attr('data-line', line_no)
+        .style('top', top_fn)
+        .html(highlight)
+
+      // insertions
+      line
+        .enter()
+        .append('code')
+        .attr('class', 'active seasons-line')
+        .attr('data-line', line_no)
+        .style('top', top_fn)
+        .html(highlight)
+
+      // deletions
+      line
+        .exit()
+        .attr('class', 'inactive seasons-line')
+    }
+  }
+
+  function key_fn(d) {
+    return d.hash
+  }
+
+  function line_no(d) {
+    return d.num
+  }
+
+  function top_fn(d) {
+    return d.num * 20 + 'px'
+  }
+
+  function highlight(d) {
+    var out = []
+      , highlight_rex = 
+        /^(return|function|prototype|class|def|arguments|var|this|import|from|with|if|else|elif|try|catch|except)$/
+      , len = d.line.length
+      , content = d.line
+      , idx = 0
+      , instr = null
+      , word = null
+      , c
+
+    while(idx < len) {
+      c = content.charAt(idx)
+      if(/['"]/.test(c)) {
+        if(instr !== null) {
+          out.splice(instr, 0, '<span class="seasons-literal">')
+          out.push('</span>')
+          instr = null
+        } else {
+          instr = idx
+        }
+      } else if(instr === null && /[^\w\d]/.test(c) && word !== null) {
+        if(highlight_rex.test(out.slice(word).join(''))) {
+          out.splice(word, 0, '<span class="seasons-keyword">')
+          out.push('</span>')
+        }
+
+        word = null
+      } else if(instr === null && /[\w\d]/.test(c) && word === null) {
+        word = idx
+      }
+
+      out.push(c.replace(/\&/g, '&amp;')
+         .replace(/</g, '&lt;')
+         .replace(/>/g, '&gt;')
+         .replace(/"/g, '&quot;')
+         .replace(/'/g, '&#39;'))
+
+      ++idx
+    }
+
+    return out.join('')+'\n'
+  }
+})

package.json

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+{
+  "author": "Chris Dickinson <chris@neversaw.us> (http://github.com/chrisdickinson/)",
+  "name": "seasons",
+  "description": "generate and display changes in code across commits",
+  "version": "0.0.1",
+  "homepage": "http://github.com/chrisdickinson/seasons/",
+  "repository": {
+    "url": "git://github.com/chrisdickinson/seasons.git"
+  },
+  "main": "lib/seasons.js",
+  "dependencies": {
+    "d3": "~2.9.4"
+  },
+  "devDependencies": {},
+  "optionalDependencies": {},
+  "engines": {
+    "node": "*"
+  }
+}