1 | function dot (s) {
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2 | return s.replace('.js', '_JS').replace(/-/g, '_')
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3 | }
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4 |
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5 | function each (obj, iter) {
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6 | for (var k in obj) { iter(obj[k], k, obj) }
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7 | }
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8 | function source (modules, fn) {
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9 | for (var k in modules) {
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10 | for (var j in modules[k]) {
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11 | if (modules[k][j] === fn) return k
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12 | }
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13 | }
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14 | }
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15 |
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16 | var exports = module.exports = function (modules, name) {
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17 | return exports.toDot(exports.toGraph(modules), name)
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18 | }
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19 |
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20 | exports.toGraph = function (modules) {
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21 | var g = {}
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22 | each(modules, function (e, name) {
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23 | var o = {}
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24 | for (var k in e) {
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25 | if (Array.isArray(e[k])) {
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26 | o[k] = e[k].map(function (v) {
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27 | return source(modules, v)
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28 | })
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29 | }
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30 | }
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31 |
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32 | g[name] = o
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33 | })
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34 | return g
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35 | }
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36 |
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37 | exports.toDot = function (g, name) {
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38 | var s = ''
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39 | function log () {
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40 | var args = [].slice.call(arguments)
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41 | s += args.join(' ') + '\n'
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42 | }
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43 |
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44 | log('digraph ' + (name || 'depject') + ' {')
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45 | for (var k in g) {
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46 | log(' ', dot(k), '[label="' + k + '"]')
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47 | }
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48 | log()
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49 | for (k in g) {
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50 | for (var j in g[k]) {
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51 | log(' ', dot(j), '[label="' + j + '", shape="box"]')
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52 | }
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53 | }
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54 |
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55 | log()
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56 |
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57 | var edges = {}
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58 | function once (edge) {
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59 | if (edges[edge]) return
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60 | edges[edge] = true
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61 | log(' ', edge)
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62 | }
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63 |
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64 | for (k in g) {
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65 | for (j in g[k]) {
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66 | once(dot(k) + '->' + dot(j))
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67 | if (Array.isArray(g[k][j])) {
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68 | g[k][j].forEach(function (dest) {
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69 | if (dest) {
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70 | once(dot(j) + '->' + dot(dest))
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71 | }
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72 | })
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73 | } else { once(dot(j) + '->' + dot(g[k][j])) }
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74 | }
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75 | }
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76 |
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77 | log('}')
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78 |
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79 | return s
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80 | }
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81 |
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