Move builder/preprocessor into its own file.
This commit is contained in:
Brendan Dahl
parent
44a6afb282
commit
e0a6b233dc
142
external/builder/builder.js
vendored
Normal file
142
external/builder/builder.js
vendored
Normal file
@ -0,0 +1,142 @@
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require('../shelljs/make');
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var fs = require('fs'),
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path = require('path'),
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vm = require('vm');
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/**
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* A simple preprocessor that is based on the firefox preprocessor
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* see (https://developer.mozilla.org/en/Build/Text_Preprocessor). The main
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* difference is that this supports a subset of the commands and it supports
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* preproccesor commands in html style comments.
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* Currently Supported commands:
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* - if
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* - else
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* - endif
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* - include
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* - expand
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*/
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function preprocess(inFilename, outFilename, defines) {
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// TODO make this really read line by line.
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var lines = fs.readFileSync(inFilename).toString().split('\n');
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var totalLines = lines.length;
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var out = '';
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var i = 0;
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function readLine() {
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if (i < totalLines) {
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return lines[i++];
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}
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return null;
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}
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var writeLine = typeof outFilename === 'function' ? outFilename : function(line) {
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out += line + '\n';
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}
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function include(file) {
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var realPath = fs.realpathSync(inFilename);
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var dir = path.dirname(realPath);
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preprocess(path.join(dir, file), writeLine, defines);
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}
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function expand(line) {
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line = line.replace(/__[\w]+__/g, function(variable) {
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variable = variable.substring(2, variable.length - 2);
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if (variable in defines) {
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return defines[variable];
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}
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return '';
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});
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writeLine(line);
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}
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var s, state = 0, stack = [];
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var control = /^(?:\/\/|<!--)\s*#(if|else|endif|expand|include)(?:\s+(.*?)(?:-->)?$)?/;
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var lineNumber = 0;
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while ((s = readLine()) !== null) {
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++lineNumber;
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var m = control.exec(s);
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if (m) {
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switch (m[1]) {
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case 'if':
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stack.push(state);
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try {
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state = vm.runInNewContext(m[2], defines) ? 3 : 1;
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} catch (e) {
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console.error('Could not evalute line \'' + m[2] + '\' at ' +
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fs.realpathSync(inFilename) + ':' + lineNumber);
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throw e;
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}
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break;
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case 'else':
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state = state === 1 ? 3 : 2;
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break;
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case 'endif':
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state = stack.pop();
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break;
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case 'expand':
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if (state === 0 || state === 3)
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expand(m[2]);
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break;
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case 'include':
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if (state === 0 || state === 3)
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include(m[2]);
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break;
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}
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} else {
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if (state === 0) {
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writeLine(s);
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} else if(state === 3) {
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writeLine(s.replace(/^\/\/|^<!--|-->/g, " "));
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}
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}
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}
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if (state !== 0 || stack.length !== 0)
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throw new Error('Missing endif in preprocessor.');
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if (typeof outFilename !== 'function')
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fs.writeFileSync(outFilename, out);
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}
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exports.preprocess = preprocess;
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/**
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* Simplifies common build steps.
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* @param setup
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* .defines defines for preprocessors
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* .copy array of arrays of source and destination pairs of files to copy
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* .preprocess array of arrays of source and destination pairs of files
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* run through preprocessor
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*/
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function build(setup) {
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var defines = setup.defines;
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setup.copy.forEach(function(option) {
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var source = option[0];
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var destination = option[1];
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cp('-R', source, destination);
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});
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setup.preprocess.forEach(function(option) {
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var sources = option[0];
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var destination = option[1];
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sources = ls('-R', sources);
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sources.forEach(function(source) {
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// ??? Warn if the source is wildcard and dest is file?
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var destWithFolder = destination;
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if (test('-d', destination))
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destWithFolder += '/' + path.basename(source);
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preprocess(source, destWithFolder, defines);
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});
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});
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}
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exports.build = build;
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/**
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* Merge two defines arrays. Values in the second param will override values in
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* the first.
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*/
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function merge(defaults, defines) {
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var ret = {};
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for (var key in defaults)
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ret[key] = defaults[key];
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for (key in defines)
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ret[key] = defines[key];
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return ret;
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}
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exports.merge = merge;
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158
make.js
158
make.js
@ -1,8 +1,6 @@
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#!/usr/bin/env node
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require('./external/shelljs/make');
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var fs = require('fs');
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var path = require('path');
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var vm = require('vm');
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var builder = require('./external/builder/builder.js');
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var ROOT_DIR = __dirname + '/', // absolute path to project's root
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BUILD_DIR = 'build/',
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@ -29,138 +27,6 @@ var DEFINES = {
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CHROME: false
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};
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function extendDefines(obj) {
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var ret = {};
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for (var key in DEFINES)
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ret[key] = DEFINES[key];
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for (key in obj)
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ret[key] = obj[key];
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return ret;
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}
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var BuildHelper = {
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/**
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* A simple preprocessor that is based on the firefox preprocessor
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* see (https://developer.mozilla.org/en/Build/Text_Preprocessor). The main
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* difference is that this supports a subset of the commands and it supports
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* preproccesor commands in html style comments.
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* Currently Supported commands:
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* - if
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* - else
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* - endif
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* - include
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* - expand
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*/
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preprocess: function preprocess(inFilename, outFilename, defines) {
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// TODO make this really read line by line.
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var lines = fs.readFileSync(inFilename).toString().split('\n');
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var totalLines = lines.length;
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var out = '';
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var i = 0;
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function readLine() {
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if (i < totalLines) {
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return lines[i++];
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}
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return null;
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}
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var writeLine = typeof outFilename === 'function' ? outFilename : function(line) {
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out += line + '\n';
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}
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function include(file) {
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var realPath = fs.realpathSync(inFilename);
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var dir = path.dirname(realPath);
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preprocess(path.join(dir, file), writeLine, defines);
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}
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function expand(line) {
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line = line.replace(/__[\w]+__/g, function(variable) {
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variable = variable.substring(2, variable.length - 2);
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if (variable in defines) {
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return defines[variable];
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}
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return '';
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});
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writeLine(line);
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}
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var s, state = 0, stack = [];
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var control = /^(?:\/\/|<!--)\s*#(if|else|endif|expand|include)(?:\s+(.*?)(?:-->)?$)?/;
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var lineNumber = 0;
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while ((s = readLine()) !== null) {
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++lineNumber;
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var m = control.exec(s);
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if (m) {
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switch (m[1]) {
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case 'if':
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stack.push(state);
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try {
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state = vm.runInNewContext(m[2], defines) ? 3 : 1;
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} catch (e) {
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console.error('Could not evalute line \'' + m[2] + '\' at ' +
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fs.realpathSync(inFilename) + ':' + lineNumber);
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throw e;
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}
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break;
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case 'else':
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state = state === 1 ? 3 : 2;
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break;
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case 'endif':
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state = stack.pop();
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break;
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case 'expand':
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if (state === 0 || state === 3)
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expand(m[2]);
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break;
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case 'include':
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if (state === 0 || state === 3)
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include(m[2]);
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break;
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}
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} else {
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if (state === 0) {
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writeLine(s);
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} else if(state === 3) {
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writeLine(s.replace(/^\/\/|^<!--|-->/g, " "));
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}
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}
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}
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if (state !== 0 || stack.length !== 0)
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throw new Error('Missing endif in preprocessor.');
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if (typeof outFilename !== 'function')
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fs.writeFileSync(outFilename, out);
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},
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/**
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* Simplifies common build steps.
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* @param setup
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* .defines defines for preprocessors
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* .copy array of arrays of source and destination pairs of files to copy
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* .preprocess array of arrays of source and destination pairs of files
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* run through preprocessor
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*/
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build: function build(setup) {
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var defines = setup.defines;
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setup.copy.forEach(function(option) {
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var source = option[0];
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var destination = option[1];
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cp('-R', source, destination);
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});
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setup.preprocess.forEach(function(option) {
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var sources = option[0];
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var destination = option[1];
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sources = ls('-R', sources);
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sources.forEach(function(source) {
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// ??? Warn if the source is wildcard and dest is file?
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var destWithFolder = destination;
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if (test('-d', destination))
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destWithFolder += '/' + path.basename(source);
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BuildHelper.preprocess(source, destWithFolder, defines);
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});
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});
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}
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};
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//
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// make all
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//
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@ -204,7 +70,7 @@ target.generic = function() {
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mkdir('-p', GENERIC_DIR + BUILD_DIR);
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mkdir('-p', GENERIC_DIR + '/web');
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var defines = extendDefines({GENERIC: true});
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var defines = builder.merge(DEFINES, {GENERIC: true});
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var setup = {
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defines: defines,
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@ -220,7 +86,7 @@ target.generic = function() {
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[COMMON_WEB_FILES_PREPROCESS, GENERIC_DIR + '/web']
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]
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};
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BuildHelper.build(setup);
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builder.build(setup);
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};
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//
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@ -354,7 +220,7 @@ target.bundle = function() {
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// This just preprocesses the empty pdf.js file, we don't actually want to
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// preprocess everything yet since other build targets use this file.
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BuildHelper.preprocess('pdf.js', ROOT_DIR + BUILD_TARGET,
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builder.preprocess('pdf.js', ROOT_DIR + BUILD_TARGET,
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{BUNDLE: bundle, BUNDLE_VERSION: bundleVersion});
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};
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@ -435,7 +301,7 @@ target.firefox = function() {
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cd(ROOT_DIR);
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echo();
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echo('### Building Firefox extension');
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var defines = extendDefines({FIREFOX: true});
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var defines = builder.merge(DEFINES, {FIREFOX: true});
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var FIREFOX_BUILD_CONTENT_DIR = FIREFOX_BUILD_DIR + '/content/',
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FIREFOX_EXTENSION_DIR = 'extensions/firefox/',
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@ -488,7 +354,7 @@ target.firefox = function() {
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[COMMON_WEB_FILES_PREPROCESS, FIREFOX_BUILD_CONTENT_DIR + '/web']
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]
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};
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BuildHelper.build(setup);
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builder.build(setup);
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// Remove '.DS_Store' and other hidden files
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find(FIREFOX_BUILD_DIR).forEach(function(file) {
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@ -531,7 +397,7 @@ target.mozcentral = function() {
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cd(ROOT_DIR);
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echo();
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echo('### Building mozilla-central extension');
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var defines = extendDefines({MOZCENTRAL: true});
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var defines = builder.merge(DEFINES, {MOZCENTRAL: true});
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var MOZCENTRAL_DIR = BUILD_DIR + 'mozcentral/',
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MOZCENTRAL_EXTENSION_DIR = MOZCENTRAL_DIR + 'browser/extensions/pdfjs/',
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@ -586,7 +452,7 @@ target.mozcentral = function() {
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[COMMON_WEB_FILES_PREPROCESS, MOZCENTRAL_CONTENT_DIR + '/web']
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]
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};
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BuildHelper.build(setup);
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builder.build(setup);
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// Remove '.DS_Store' and other hidden files
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find(MOZCENTRAL_DIR).forEach(function(file) {
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@ -624,7 +490,7 @@ target.b2g = function() {
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echo('### Building B2G (Firefox OS App)');
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var B2G_BUILD_DIR = BUILD_DIR + '/b2g/',
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B2G_BUILD_CONTENT_DIR = B2G_BUILD_DIR + '/content/';
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var defines = extendDefines({ B2G: true });
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var defines = builder.merge(DEFINES, { B2G: true });
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target.bundle();
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// Clear out everything in the b2g build directory
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@ -646,7 +512,7 @@ target.b2g = function() {
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[BUILD_TARGET, B2G_BUILD_CONTENT_DIR + BUILD_TARGET]
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]
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};
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BuildHelper.build(setup);
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builder.build(setup);
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};
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//
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@ -656,7 +522,7 @@ target.chrome = function() {
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cd(ROOT_DIR);
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echo();
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echo('### Building Chrome extension');
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var defines = extendDefines({CHROME: true});
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var defines = builder.merge(DEFINES, {CHROME: true});
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var CHROME_BUILD_DIR = BUILD_DIR + '/chrome/',
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CHROME_BUILD_CONTENT_DIR = CHROME_BUILD_DIR + '/content/';
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@ -684,7 +550,7 @@ target.chrome = function() {
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['web/locale.properties', CHROME_BUILD_CONTENT_DIR + '/web']
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]
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};
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BuildHelper.build(setup);
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builder.build(setup);
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};
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