Standalone utility for generating metadata

Refs openimagerynetwork#2

bin/index.js

@@ -0,0 +1,91 @@
+#!/usr/bin/env node
+
+var fs = require('fs');
+
+var gdalinfo = require('gdalinfo-json');
+var yargs = require('yargs');
+
+var applyGdalinfo = require('../lib/apply-gdalinfo');
+
+var argv = yargs.usage('Usage: $0 [args] <file>')
+  .option('u', {
+    alias: 'uuid',
+    describe: 'Source UUID',
+    requiresArg: true
+  })
+  .option('t', {
+    alias: 'title',
+    describe: 'Source title',
+    requiresArg: true
+  })
+  .option('a', {
+    alias: 'acquisition-start',
+    describe: 'Acquisition start date',
+    requiresArg: true
+  })
+  .option('A', {
+    alias: 'acquisition-end',
+    describe: 'Acquisition end date',
+    requiresArg: true
+  })
+  .option('p', {
+    alias: 'provider',
+    describe: 'Provider / owner',
+    requiresArg: true
+  })
+  .option('P', {
+    alias: 'platform',
+    describe: 'Imagery platform (satellite, aircraft, UAV, etc.)',
+    requiresArg: true
+  })
+  .option('c', {
+    alias: 'contact',
+    describe: 'Data provider contact info',
+    requiresArg: true
+  })
+  .option('m', {
+    alias: 'additional-metadata',
+    describe: 'Additional metadata (sensor=WV3, etc.)',
+    requiresArg: true
+  })
+  .alias({
+    help: 'h',
+    version: 'V'
+  })
+  .demandCommand(1, 1, 'A file must be provided', 'Only one file may be provided')
+  .help()
+  .strict()
+  .version()
+  .argv;
+
+var filename = argv._[0];
+
+var metadata = {
+  uuid: argv.uuid,
+  title: argv.title,
+  acquisition_start: new Date(argv.acquisitionStart) || null,
+  acquisition_end: new Date(argv.acquisitionEnd) || null,
+  platform: argv.platform,
+  provider: argv.provider,
+  contact: argv.contact,
+  properties: argv.additionalMetadata.reduce(function (obj, pair) {
+    var parts = pair.split("=", 2);
+
+    obj[parts[0]] = parts[1];
+
+    return obj;
+  }, {})
+};
+
+var stats = fs.statSync(filename);
+metadata.file_size = stats.size;
+
+gdalinfo.local(filename, function (err, oin) {
+  if (err) {
+    throw err;
+  }
+
+  applyGdalinfo(metadata, oin);
+
+  process.stdout.write(JSON.stringify(metadata));
+});

package.json

@@ -3,6 +3,7 @@
   "version": "0.1.0",
   "description": "A metadata generator for OAM imagery",
   "main": "index.js",
+  "bin": "bin/index.js",
   "scripts": {
     "test": "./node_modules/semistandard/bin/cmd.js",
     "start": "node index.js"
@@ -28,7 +29,8 @@
     "fs-extra": "^0.18.3",
     "gdalinfo-json": "^0.4.0",
     "lodash": "^3.8.0",
-    "s3": "^4.4.0"
+    "s3": "^4.4.0",
+    "yargs": "^6.6.0"
   },
   "devDependencies": {
     "semistandard": "^4.1.4"