1 | #!/usr/bin/env node
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2 |
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3 | /**
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4 | * yaml2json cli program
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5 | */
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6 |
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7 | var YAML = require('../lib/Yaml.js');
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8 |
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9 | var ArgumentParser = require('argparse').ArgumentParser;
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10 | var cli = new ArgumentParser({
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11 | prog: "json2yaml",
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12 | version: require('../package.json').version,
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13 | addHelp: true
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14 | });
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15 |
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16 | cli.addArgument(
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17 | ['-d', '--depth'],
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18 | {
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19 | action: 'store',
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20 | type: 'int',
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21 | help: 'Set minimum level of depth before generating inline YAML (default: 2).'
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22 | }
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23 | );
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24 |
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25 | cli.addArgument(
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26 | ['-i', '--indentation'],
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27 | {
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28 | action: 'store',
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29 | type: 'int',
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30 | help: 'Number of space characters used to indent code (default: 2).',
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31 | }
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32 | );
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33 |
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34 | cli.addArgument(
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35 | ['-s', '--save'],
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36 | {
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37 | help: 'Save output inside YML file(s) with the same name.',
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38 | action: 'storeTrue'
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39 | }
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40 | );
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41 |
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42 | cli.addArgument(
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43 | ['-r', '--recursive'],
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44 | {
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45 | help: 'If the input is a directory, also find JSON files in sub-directories recursively.',
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46 | action: 'storeTrue'
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47 | }
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48 | );
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49 |
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50 | cli.addArgument(
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51 | ['-w', '--watch'],
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52 | {
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53 | help: 'Watch for changes.',
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54 | action: 'storeTrue'
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55 | }
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56 | );
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57 |
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58 | cli.addArgument(['input'], {
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59 | help: 'JSON file or directory containing JSON files or - to read JSON from stdin.'
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60 | });
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61 |
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62 | try {
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63 | var options = cli.parseArgs();
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64 | var path = require('path');
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65 | var fs = require('fs');
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66 | var glob = require('glob');
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67 |
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68 | var rootPath = process.cwd();
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69 | var parsePath = function(input) {
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70 | if (input == '-') return '-';
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71 | var output;
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72 | if (!(input != null)) {
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73 | return rootPath;
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74 | }
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75 | output = path.normalize(input);
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76 | if (output.length === 0) {
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77 | return rootPath;
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78 | }
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79 | if (output.charAt(0) !== '/') {
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80 | output = path.normalize(rootPath + '/./' + output);
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81 | }
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82 | if (output.length > 1 && output.charAt(output.length - 1) === '/') {
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83 | return output.substr(0, output.length - 1);
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84 | }
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85 | return output;
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86 | };
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87 |
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88 | // Find files
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89 | var findFiles = function(input) {
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90 | if (input != '-' && input != null) {
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91 | var isDirectory = fs.statSync(input).isDirectory();
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92 | var files = [];
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93 |
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94 | if (!isDirectory) {
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95 | files.push(input);
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96 | }
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97 | else {
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98 | if (options.recursive) {
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99 | files = files.concat(glob.sync(input+'/**/*.json'));
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100 | }
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101 | else {
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102 | files = files.concat(glob.sync(input+'/*.json'));
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103 | }
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104 | }
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105 |
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106 | return files;
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107 | }
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108 | return null;
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109 | };
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110 |
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111 | // Convert to JSON
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112 | var convertToYAML = function(input, inline, save, spaces, str) {
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113 | var yaml;
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114 | if (inline == null) inline = 2;
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115 | if (spaces == null) spaces = 2;
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116 |
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117 | if (str == null) {
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118 | str = ''+fs.readFileSync(input);
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119 | }
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120 | yaml = YAML.dump(JSON.parse(str), inline, spaces);
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121 |
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122 | if (!save || input == null) {
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123 | // Ouput result
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124 | process.stdout.write(yaml);
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125 | }
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126 | else {
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127 | var output;
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128 | if (input.substring(input.length-5) == '.json') {
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129 | output = input.substr(0, input.length-5) + '.yaml';
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130 | }
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131 | else {
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132 | output = input + '.yaml';
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133 | }
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134 |
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135 | // Write file
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136 | var file = fs.openSync(output, 'w+');
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137 | fs.writeSync(file, yaml);
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138 | fs.closeSync(file);
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139 | process.stdout.write("saved "+output+"\n");
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140 | }
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141 | };
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142 |
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143 | var input = parsePath(options.input);
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144 | var mtimes = [];
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145 |
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146 | var runCommand = function() {
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147 | try {
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148 | var files = findFiles(input);
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149 | if (files != null) {
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150 | var len = files.length;
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151 | for (var i = 0; i < len; i++) {
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152 | var file = files[i];
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153 | var stat = fs.statSync(file);
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154 | var time = stat.mtime.getTime();
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155 | if (!stat.isDirectory()) {
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156 | if (!mtimes[file] || mtimes[file] < time) {
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157 | mtimes[file] = time;
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158 | convertToYAML(file, options.depth, options.save, options.indentation);
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159 | }
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160 | }
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161 | }
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162 | } else {
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163 | // Read from STDIN
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164 | var stdin = process.openStdin();
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165 | var data = "";
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166 | stdin.on('data', function(chunk) {
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167 | data += chunk;
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168 | });
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169 | stdin.on('end', function() {
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170 | convertToYAML(null, options.depth, options.save, options.indentation, data);
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171 | });
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172 | }
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173 | } catch (e) {
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174 | process.stderr.write((e.message ? e.message : e)+"\n");
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175 | }
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176 | };
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177 |
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178 | if (!options.watch) {
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179 | runCommand();
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180 | } else {
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181 | runCommand();
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182 | setInterval(runCommand, 1000);
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183 | }
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184 | } catch (e) {
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185 | process.stderr.write((e.message ? e.message : e)+"\n");
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186 | }
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