More fixes related to review feedback

More fixes related to review feedback:
1) Added yargs to package.json, reran npm update (also updates
package-lock.json)
2) Added global variables for downloads_dir / dist_dir, which holds the
absolute path for argv.downloads_dir / argv.dist_dir after a call to
path.resolve(). Switched the code to use them.
3) Fixed hardcoding of "dist/" and "download/" in the zipInputData step.

Tested with:
$ node --max-old-space-size=8192 index.js \
    --downloads_dir=mydownloads \
    --dist_dir=mydist \
    --included_zones America/New_York America/Chicago

3 files changed, 301 insertions, 42 deletions

diff --git a/index.js b/index.js
index 3425eb5..775ccb6 100644
--- a/index.js
+++ b/index.js
@@ -12,6 +12,7 @@ var jsts = require('jsts')
 var rimraf = require('rimraf')
 var overpass = require('query-overpass')
 var yargs = require('yargs')
+var path = require('path')
 
 const ProgressStats = require('./progressStats')
 
@@ -55,6 +56,10 @@ const argv = yargs
   .alias('help', 'h')
   .argv
 
+// Resolve the arguments with paths so relative paths become absolute.
+let downloads_dir = path.resolve(argv.downloads_dir)
+let dist_dir = path.resolve(argv.dist_dir)
+
 // allow building of only a specified zones
 let includedZones = []
 let excludedZones = []
@@ -202,7 +207,7 @@ var downloadOsmBoundary = function (boundaryId, boundaryCallback) {
   } else {
     query += 'relation'
   }
-  var boundaryFilename = argv.downloads_dir + '/' + boundaryId + '.json'
+  var boundaryFilename = downloads_dir + '/' + boundaryId + '.json'
   var debug = 'getting data for ' + boundaryId
   var queryKeys = Object.keys(cfg)
 
@@ -310,7 +315,7 @@ var downloadOsmBoundary = function (boundaryId, boundaryCallback) {
 }
 
 var getTzDistFilename = function (tzid) {
-  return argv.dist_dir + '/' + tzid.replace(/\//g, '__') + '.json'
+  return dist_dir + '/' + tzid.replace(/\//g, '__') + '.json'
 }
 
 /**
@@ -325,7 +330,7 @@ var getTzDistFilename = function (tzid) {
 var getDataSource = function (source) {
   var geoJson
   if (source.source === 'overpass') {
-    geoJson = require(argv.downloads_dir + '/' + source.id + '.json')
+    geoJson = require(downloads_dir + '/' + source.id + '.json')
   } else if (source.source === 'manual-polygon') {
     geoJson = polygon(source.data).geometry
   } else if (source.source === 'manual-multipolygon') {
@@ -665,8 +670,8 @@ var addOceans = function (callback) {
 }
 
 var combineAndWriteZones = function (callback) {
-  var stream = fs.createWriteStream(argv.dist_dir + '/combined.json')
-  var streamWithOceans = fs.createWriteStream(argv.dist_dir + '/combined-with-oceans.json')
+  var stream = fs.createWriteStream(dist_dir + '/combined.json')
+  var streamWithOceans = fs.createWriteStream(dist_dir + '/combined-with-oceans.json')
   var zones = Object.keys(zoneCfg)
 
   stream.write('{"type":"FeatureCollection","features":[')
@@ -708,11 +713,11 @@ var combineAndWriteZones = function (callback) {
 const autoScript = {
   makeDownloadsDir: function (cb) {
     overallProgress.beginTask('Creating downloads dir')
-    safeMkdir(argv.downloads_dir, cb)
+    safeMkdir(downloads_dir, cb)
   },
   makeDistDir: function (cb) {
     overallProgress.beginTask('Creating dist dir')
-    safeMkdir(argv.dist_dir, cb)
+    safeMkdir(dist_dir, cb)
   },
   getOsmBoundaries: ['makeDownloadsDir', function (results, cb) {
     overallProgress.beginTask('Downloading osm boundaries')
@@ -720,7 +725,8 @@ const autoScript = {
   }],
   zipInputData: ['makeDistDir', 'getOsmBoundaries', function (results, cb) {
     overallProgress.beginTask('Zipping up input data')
-    exec('zip dist/input-data.zip downloads/* timezones.json osmBoundarySources.json expectedZoneOverlaps.json', cb)
+    exec('zip ' + dist_dir + '/input-data.zip ' + downloads_dir
+         + '/* timezones.json osmBoundarySources.json expectedZoneOverlaps.json', cb)
   }],
   createZones: ['makeDistDir', 'getOsmBoundaries', function (results, cb) {
     overallProgress.beginTask('Creating timezone boundaries')
@@ -750,8 +756,8 @@ const autoScript = {
       return cb()
     }
     overallProgress.beginTask('Zipping geojson')
-    let zipFile = argv.dist_dir + '/timezones.geojson.zip'
-    let jsonFile = argv.dist_dir + '/combined.json'
+    let zipFile = dist_dir + '/timezones.geojson.zip'
+    let jsonFile = dist_dir + '/combined.json'
     exec('zip ' + zipFile + ' ' + jsonFile, cb)
   }],
   zipGeoJsonWithOceans: ['mergeZones', function (results, cb) {
@@ -760,8 +766,8 @@ const autoScript = {
       return cb()
     }
     overallProgress.beginTask('Zipping geojson with oceans')
-    let zipFile = argv.dist_dir + '/timezones-with-oceans.geojson.zip'
-    let jsonFile = argv.dist_dir + '/combined-with-oceans.json'
+    let zipFile = dist_dir + '/timezones-with-oceans.geojson.zip'
+    let jsonFile = dist_dir + '/combined-with-oceans.json'
     exec('zip ' + zipFile + ' ' + jsonFile, cb)
   }],
   makeShapefile: ['mergeZones', function (results, cb) {
@@ -770,15 +776,15 @@ const autoScript = {
       return cb()
     }
     overallProgress.beginTask('Converting from geojson to shapefile')
-    let shapeFileGlob = argv.dist_dir + '/combined-shapefile.*'
+    let shapeFileGlob = dist_dir + '/combined-shapefile.*'
     rimraf.sync(shapeFileGlob)
-    let shapeFile = argv.dist_dir + '/combined-shapefile.shp'
-    let jsonFile = argv.dist_dir + '/combined.json'
+    let shapeFile = dist_dir + '/combined-shapefile.shp'
+    let jsonFile = dist_dir + '/combined.json'
     exec(
       'ogr2ogr -f "ESRI Shapefile" ' + shapeFile + ' ' + jsonFile,
       function (err, stdout, stderr) {
         if (err) { return cb(err) }
-        let shapeFileZip = argv.dist_dir + '/timezones.shapefile.zip'
+        let shapeFileZip = dist_dir + '/timezones.shapefile.zip'
         exec('zip ' + shapeFileZip + ' ' + shapeFileGlob, cb)
       }
     )
@@ -789,15 +795,15 @@ const autoScript = {
       return cb()
     }
     overallProgress.beginTask('Converting from geojson with oceans to shapefile')
-    let shapeFileGlob = argv.dist_dir + '/combined-shapefile-with-oceans.*'
+    let shapeFileGlob = dist_dir + '/combined-shapefile-with-oceans.*'
     rimraf.sync(shapeFileGlob)
-    let shapeFile = argv.dist_dir + '/combined-shapefile-with-oceans.shp'
-    let jsonFile = argv.dist_dir + '/combined-with-oceans.json'
+    let shapeFile = dist_dir + '/combined-shapefile-with-oceans.shp'
+    let jsonFile = dist_dir + '/combined-with-oceans.json'
     exec(
       'ogr2ogr -f "ESRI Shapefile" ' + shapeFile + ' ' + jsonFile,
       function (err, stdout, stderr) {
         if (err) { return cb(err) }
-        let shapeFileZip = argv.dist_dir + '/timezones-with-oceans.shapefile.zip'
+        let shapeFileZip = dist_dir + '/timezones-with-oceans.shapefile.zip'
         exec('zip ' + shapeFileZip + ' ' + shapeFileGlob, cb)
       }
     )
@@ -815,7 +821,7 @@ const autoScript = {
       zoneNames = zoneNames.filter(zoneName => excludedZones.indexOf(zoneName) === -1)
     }
     fs.writeFile(
-      argv.dist_dir + '/timezone-names.json',
+      dist_dir + '/timezone-names.json',
       JSON.stringify(zoneNames),
       cb
     )
diff --git a/package-lock.json b/package-lock.json
index 3c2b085..ec54baa 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -53,6 +53,11 @@
         "@turf/helpers": "6.x"
       }
     },
+    "@types/color-name": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/@types/color-name/-/color-name-1.1.1.tgz",
+      "integrity": "sha512-rr+OQyAjxze7GgWrSaJwydHStIhHq2lvY3BOC2Mj7KnzI7XK0Uw1TOOdI9lDoajEbSWLiYgoo4f1R51erQfhPQ=="
+    },
     "@types/unist": {
       "version": "2.0.3",
       "resolved": "https://registry.npmjs.org/@types/unist/-/unist-2.0.3.tgz",
@@ -273,6 +278,11 @@
       "integrity": "sha1-r6uWJikQp/M8GaV3WCXGnzTjUMo=",
       "dev": true
     },
+    "camelcase": {
+      "version": "5.3.1",
+      "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
+      "integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg=="
+    },
     "caseless": {
       "version": "0.12.0",
       "resolved": "https://registry.npmjs.org/caseless/-/caseless-0.12.0.tgz",
@@ -315,6 +325,46 @@
       "integrity": "sha1-/xnt6Kml5XkyQUewwR8PvLq+1jk=",
       "dev": true
     },
+    "cliui": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/cliui/-/cliui-6.0.0.tgz",
+      "integrity": "sha512-t6wbgtoCXvAzst7QgXxJYqPt0usEfbgQdftEPbLL/cvv6HPE5VgvqCuAIDR0NgU52ds6rFwqrgakNLrHEjCbrQ==",
+      "requires": {
+        "string-width": "^4.2.0",
+        "strip-ansi": "^6.0.0",
+        "wrap-ansi": "^6.2.0"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.0.tgz",
+          "integrity": "sha512-bY6fj56OUQ0hU1KjFNDQuJFezqKdrAyFdIevADiqrWHwSlbmBNMHp5ak2f40Pm8JTFyM2mqxkG6ngkHO11f/lg=="
+        },
+        "is-fullwidth-code-point": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-3.0.0.tgz",
+          "integrity": "sha512-zymm5+u+sCsSWyD9qNaejV3DFvhCKclKdizYaJUuHA83RLjb7nSuGnddCHGv0hk+KY7BMAlsWeK4Ueg6EV6XQg=="
+        },
+        "string-width": {
+          "version": "4.2.0",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.0.tgz",
+          "integrity": "sha512-zUz5JD+tgqtuDjMhwIg5uFVV3dtqZ9yQJlZVfq4I01/K5Paj5UHj7VyrQOJvzawSVlKpObApbfD0Ed6yJc+1eg==",
+          "requires": {
+            "emoji-regex": "^8.0.0",
+            "is-fullwidth-code-point": "^3.0.0",
+            "strip-ansi": "^6.0.0"
+          }
+        },
+        "strip-ansi": {
+          "version": "6.0.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.0.tgz",
+          "integrity": "sha512-AuvKTrTfQNYNIctbR1K/YGTR1756GycPsg7b9bdV9Duqur4gv6aKqHXah67Z8ImS7WEz5QVcOtlfW2rZEugt6w==",
+          "requires": {
+            "ansi-regex": "^5.0.0"
+          }
+        }
+      }
+    },
     "color-convert": {
       "version": "1.9.3",
       "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-1.9.3.tgz",
@@ -401,6 +451,11 @@
       "integrity": "sha1-IwdjLUwEOCuN+KMvcLiVBG1SdF8=",
       "dev": true
     },
+    "decamelize": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/decamelize/-/decamelize-1.2.0.tgz",
+      "integrity": "sha1-9lNNFRSCabIDUue+4m9QH5oZEpA="
+    },
     "deep-is": {
       "version": "0.1.3",
       "resolved": "https://registry.npmjs.org/deep-is/-/deep-is-0.1.3.tgz",
@@ -486,6 +541,11 @@
         "safer-buffer": "^2.1.0"
       }
     },
+    "emoji-regex": {
+      "version": "8.0.0",
+      "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz",
+      "integrity": "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A=="
+    },
     "error-ex": {
       "version": "1.3.2",
       "resolved": "https://registry.npmjs.org/error-ex/-/error-ex-1.3.2.tgz",
@@ -1024,6 +1084,11 @@
         }
       }
     },
+    "get-caller-file": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/get-caller-file/-/get-caller-file-2.0.5.tgz",
+      "integrity": "sha512-DyFP3BM/3YHTQOCUL/w0OZHR0lpKeGrxotcHWcqNEdnltqFwXVfhEBQ94eIo34AfQpo0rGki4cyIiftY06h2Fg=="
+    },
     "get-stdin": {
       "version": "6.0.0",
       "resolved": "https://registry.npmjs.org/get-stdin/-/get-stdin-6.0.0.tgz",
@@ -1419,9 +1484,9 @@
       }
     },
     "jsts": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/jsts/-/jsts-2.1.2.tgz",
-      "integrity": "sha512-9Mw/vKxnLHw5WX6c67Hvo4jxRkP3jDlVfRl3HK3P71EoSLFM7VkjZQh/2Utj7hf2IX6x/M7UYrkPjrmqlLMNQA=="
+      "version": "2.5.0",
+      "resolved": "https://registry.npmjs.org/jsts/-/jsts-2.5.0.tgz",
+      "integrity": "sha512-r7CPjky5ZnhST9vwtVsNxaA9ghnt74u2w19Uo4c5ZUTaNaatDV63wDyD9BA2bfgEDwbppB7kRUs5TYSImqScPg=="
     },
     "jsx-ast-utils": {
       "version": "2.2.1",
@@ -1482,9 +1547,9 @@
       }
     },
     "lodash": {
-      "version": "4.17.15",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
-      "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==",
+      "version": "4.17.20",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.20.tgz",
+      "integrity": "sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==",
       "dev": true
     },
     "loose-envify": {
@@ -1755,9 +1820,9 @@
       "dev": true
     },
     "pako": {
-      "version": "1.0.10",
-      "resolved": "https://registry.npmjs.org/pako/-/pako-1.0.10.tgz",
-      "integrity": "sha512-0DTvPVU3ed8+HNXOu5Bs+o//Mbdj9VNQMUOe9oKCwh8l0GNwpTDMKCWbRjgtD291AWnkAgkqA/LOnQS8AmS1tw=="
+      "version": "1.0.11",
+      "resolved": "https://registry.npmjs.org/pako/-/pako-1.0.11.tgz",
+      "integrity": "sha512-4hLB8Py4zZce5s4yd9XzopqwVv/yGNhV1Bl8NTmCq1763HeK2+EwVTv+leGeL13Dnh2wfbqowVPXCIO0z4taYw=="
     },
     "parse-headers": {
       "version": "2.0.2",
@@ -1924,12 +1989,12 @@
       "dev": true
     },
     "proj4": {
-      "version": "2.5.0",
-      "resolved": "https://registry.npmjs.org/proj4/-/proj4-2.5.0.tgz",
-      "integrity": "sha512-XZTRT7OPdLzgvtTqL8DG2cEj8lYdovztOwiwpwRSYayOty5Ipf3H68dh/fiL+HKDEyetmQSMhkkMGiJoyziz3w==",
+      "version": "2.6.2",
+      "resolved": "https://registry.npmjs.org/proj4/-/proj4-2.6.2.tgz",
+      "integrity": "sha512-Pn0+HZtXb4JzuN8RR0VM7yyseegiYHbXkF+2FOdGpzRojcZ1BTjWxOh7qfp2vH0EyLu8pvcrhLxidwzgyUy/Gw==",
       "requires": {
         "mgrs": "1.0.0",
-        "wkt-parser": "^1.2.0"
+        "wkt-parser": "^1.2.4"
       }
     },
     "prop-types": {
@@ -2079,6 +2144,16 @@
         "uuid": "^3.3.2"
       }
     },
+    "require-directory": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/require-directory/-/require-directory-2.1.1.tgz",
+      "integrity": "sha1-jGStX9MNqxyXbiNE/+f3kqam30I="
+    },
+    "require-main-filename": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/require-main-filename/-/require-main-filename-2.0.0.tgz",
+      "integrity": "sha512-NKN5kMDylKuldxYLSUfrbo5Tuzh4hd+2E8NPPX02mZtn1VuREQToYe/ZdlJy+J3uCpfaiGF05e7B8W0iXbQHmg=="
+    },
     "require-uncached": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/require-uncached/-/require-uncached-1.0.3.tgz",
@@ -2162,6 +2237,11 @@
       "integrity": "sha512-Ya52jSX2u7QKghxeoFGpLwCtGlt7j0oY9DYb5apt9nPlJ42ID+ulTXESnt/qAQcoSERyZ5sl3LDIOw0nAn/5DA==",
       "dev": true
     },
+    "set-blocking": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/set-blocking/-/set-blocking-2.0.0.tgz",
+      "integrity": "sha1-BF+XgtARrppoA93TgrJDkrPYkPc="
+    },
     "shebang-command": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-1.2.0.tgz",
@@ -2178,9 +2258,9 @@
       "dev": true
     },
     "shpjs": {
-      "version": "3.4.3",
-      "resolved": "https://registry.npmjs.org/shpjs/-/shpjs-3.4.3.tgz",
-      "integrity": "sha512-NZM75+SLgPt9dK91Z92QK+fVd2OR6zswAmkTrkHRc4mnONbAWGo38I+AxCYsKgCNfqF5cZUi2KfO7r2TZ+tHdw==",
+      "version": "3.5.0",
+      "resolved": "https://registry.npmjs.org/shpjs/-/shpjs-3.5.0.tgz",
+      "integrity": "sha512-v21xnhMuvIdU+lcm9rLBZcA/PSwYfv1nfeNcgh6KbGygRnCt0wvyLnm1NbAl0wN45gP+qT7fkM414ukXXReTXQ==",
       "requires": {
         "jszip": "^2.4.0",
         "lie": "^3.0.1",
@@ -2584,16 +2664,83 @@
         "isexe": "^2.0.0"
       }
     },
+    "which-module": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/which-module/-/which-module-2.0.0.tgz",
+      "integrity": "sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho="
+    },
     "wkt-parser": {
-      "version": "1.2.3",
-      "resolved": "https://registry.npmjs.org/wkt-parser/-/wkt-parser-1.2.3.tgz",
-      "integrity": "sha512-s7zrOedGuHbbzMaQOuf8HacuCYp3LmmrHjkkN//7UEAzsYz7xJ6J+j/84ZWZkQcrRqi3xXyuc4odPHj7PEB0bw=="
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/wkt-parser/-/wkt-parser-1.2.4.tgz",
+      "integrity": "sha512-ZzKnc7ml/91fOPh5bANBL4vUlWPIYYv11waCtWTkl2TRN+LEmBg60Q1MA8gqV4hEp4MGfSj9JiHz91zw/gTDXg=="
     },
     "wordwrap": {
       "version": "0.0.3",
       "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.3.tgz",
       "integrity": "sha1-o9XabNXAvAAI03I0u68b7WMFkQc="
     },
+    "wrap-ansi": {
+      "version": "6.2.0",
+      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-6.2.0.tgz",
+      "integrity": "sha512-r6lPcBGxZXlIcymEu7InxDMhdW0KDxpLgoFLcguasxCaJ/SOIZwINatK9KY/tf+ZrlywOKU0UDj3ATXUBfxJXA==",
+      "requires": {
+        "ansi-styles": "^4.0.0",
+        "string-width": "^4.1.0",
+        "strip-ansi": "^6.0.0"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.0.tgz",
+          "integrity": "sha512-bY6fj56OUQ0hU1KjFNDQuJFezqKdrAyFdIevADiqrWHwSlbmBNMHp5ak2f40Pm8JTFyM2mqxkG6ngkHO11f/lg=="
+        },
+        "ansi-styles": {
+          "version": "4.2.1",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.2.1.tgz",
+          "integrity": "sha512-9VGjrMsG1vePxcSweQsN20KY/c4zN0h9fLjqAbwbPfahM3t+NL+M9HC8xeXG2I8pX5NoamTGNuomEUFI7fcUjA==",
+          "requires": {
+            "@types/color-name": "^1.1.1",
+            "color-convert": "^2.0.1"
+          }
+        },
+        "color-convert": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
+          "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
+          "requires": {
+            "color-name": "~1.1.4"
+          }
+        },
+        "color-name": {
+          "version": "1.1.4",
+          "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
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+          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-3.0.0.tgz",
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+        },
+        "string-width": {
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+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.0.tgz",
+          "integrity": "sha512-zUz5JD+tgqtuDjMhwIg5uFVV3dtqZ9yQJlZVfq4I01/K5Paj5UHj7VyrQOJvzawSVlKpObApbfD0Ed6yJc+1eg==",
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+            "is-fullwidth-code-point": "^3.0.0",
+            "strip-ansi": "^6.0.0"
+          }
+        },
+        "strip-ansi": {
+          "version": "6.0.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.0.tgz",
+          "integrity": "sha512-AuvKTrTfQNYNIctbR1K/YGTR1756GycPsg7b9bdV9Duqur4gv6aKqHXah67Z8ImS7WEz5QVcOtlfW2rZEugt6w==",
+          "requires": {
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+          }
+        }
+      }
+    },
     "wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
@@ -2628,6 +2775,111 @@
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       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
       "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68="
+    },
+    "y18n": {
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+      "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.0.tgz",
+      "integrity": "sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w=="
+    },
+    "yargs": {
+      "version": "15.4.1",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-15.4.1.tgz",
+      "integrity": "sha512-aePbxDmcYW++PaqBsJ+HYUFwCdv4LVvdnhBy78E57PIor8/OVvhMrADFFEDh8DHDFRv/O9i3lPhsENjO7QX0+A==",
+      "requires": {
+        "cliui": "^6.0.0",
+        "decamelize": "^1.2.0",
+        "find-up": "^4.1.0",
+        "get-caller-file": "^2.0.1",
+        "require-directory": "^2.1.1",
+        "require-main-filename": "^2.0.0",
+        "set-blocking": "^2.0.0",
+        "string-width": "^4.2.0",
+        "which-module": "^2.0.0",
+        "y18n": "^4.0.0",
+        "yargs-parser": "^18.1.2"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.0.tgz",
+          "integrity": "sha512-bY6fj56OUQ0hU1KjFNDQuJFezqKdrAyFdIevADiqrWHwSlbmBNMHp5ak2f40Pm8JTFyM2mqxkG6ngkHO11f/lg=="
+        },
+        "find-up": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/find-up/-/find-up-4.1.0.tgz",
+          "integrity": "sha512-PpOwAdQ/YlXQ2vj8a3h8IipDuYRi3wceVQQGYWxNINccq40Anw7BlsEXCMbt1Zt+OLA6Fq9suIpIWD0OsnISlw==",
+          "requires": {
+            "locate-path": "^5.0.0",
+            "path-exists": "^4.0.0"
+          }
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+        "is-fullwidth-code-point": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-3.0.0.tgz",
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+          "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-5.0.0.tgz",
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+          }
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+        "p-locate": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-4.1.0.tgz",
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+        "p-try": {
+          "version": "2.2.0",
+          "resolved": "https://registry.npmjs.org/p-try/-/p-try-2.2.0.tgz",
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+        },
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+          "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-4.0.0.tgz",
+          "integrity": "sha512-ak9Qy5Q7jYb2Wwcey5Fpvg2KoAc/ZIhLSLOSBmRmygPsGwkVVt0fZa0qrtMz+m6tJTAHfZQ8FnmB4MG4LWy7/w=="
+        },
+        "string-width": {
+          "version": "4.2.0",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.0.tgz",
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+          "requires": {
+            "emoji-regex": "^8.0.0",
+            "is-fullwidth-code-point": "^3.0.0",
+            "strip-ansi": "^6.0.0"
+          }
+        },
+        "strip-ansi": {
+          "version": "6.0.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.0.tgz",
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+          "requires": {
+            "ansi-regex": "^5.0.0"
+          }
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+    },
+    "yargs-parser": {
+      "version": "18.1.3",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-18.1.3.tgz",
+      "integrity": "sha512-o50j0JeToy/4K6OZcaQmW6lyXXKhq7csREXcDwk2omFPJEwUNOVtJKvmDr9EI1fAJZUyZcRF7kxGBWmRXudrCQ==",
+      "requires": {
+        "camelcase": "^5.0.0",
+        "decamelize": "^1.2.0"
+      }
     }
   }
 }
diff --git a/package.json b/package.json
index 908b68f..dffc1e6 100644
--- a/package.json
+++ b/package.json
@@ -25,10 +25,11 @@
     "@turf/bbox": "^6.0.1",
     "@turf/helpers": "^6.1.4",
     "async": "^3.2.0",
-    "jsts": "^2.1.2",
+    "jsts": "^2.5.0",
     "query-overpass": "^1.5.5",
     "rimraf": "^2.7.1",
-    "shpjs": "^3.4.3"
+    "shpjs": "^3.5.0",
+    "yargs": "^15.4.1"
   },
   "devDependencies": {
     "standard": "^12.0.1"