Add Gulp for live theme editing

Run `npm start` from terminal to launch an extension host window and
start watching the TypeScript source files.

You can still open VS Code and press F5 if using a version older than
1.30 (January 2019).

5 files changed, 4090 insertions, 69 deletions

diff --git a/.vscode/launch.json b/.vscode/launch.json
index b3b912d..62970eb 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -14,7 +14,7 @@
             "outFiles": [
                 "${workspaceFolder}/out/**/*.js"
             ],
-            "preLaunchTask": "npm: start"
+            "preLaunchTask": "npx gulp"
         }
     ]
 }
\ No newline at end of file
diff --git a/generate.js b/generate.js
deleted file mode 100644
index 6f7a867..0000000
--- a/generate.js
+++ /dev/null
@@ -1,48 +0,0 @@
-var glob = require('glob');
-var fs = require('fs');
-var path = require('path');
-var childProcess = require('child_process');
-
-// Run compiled theme generators
-glob.sync('./themes/ts-built/**/*.js').forEach(function(file) {
-    childProcess.spawnSync('node', [ path.resolve(file) ]);
-});
-
-// Move generated themes to the correct folders
-glob.sync('./themes/ts-built/dark/*.json').forEach(function(file) {
-    fs.renameSync(file, path.join(__dirname, 'themes', 'dark', path.basename(file)));
-});
-
-glob.sync('./themes/ts-built/light/*.json').forEach(function(file) {
-    fs.renameSync(file, path.join(__dirname, 'themes', 'light', path.basename(file)));
-});
-
-// Populate the "contributes" property in package.json
-var themes = [];
-
-glob.sync('./themes/dark/*.json').forEach(function(file) {
-    var theme = require(file);
-    themes.push({
-        label: theme.name,
-        uiTheme: 'vs-dark',
-        path: file
-    });
-});
-
-glob.sync('./themes/light/*.json').forEach(function(file) {
-    var theme = require(file);
-    themes.push({
-        label: theme.name,
-        uiTheme: 'vs',
-        path: file
-    });
-});
-
-var package = require('./package.json');
-
-package.contributes.themes = themes;
-
-fs.writeFile('./package.json', JSON.stringify(package, null, 2), function(err) {
-    if (err) return console.log(err);
-    console.log('package.json updated');
-});
\ No newline at end of file
diff --git a/gulpfile.js b/gulpfile.js
new file mode 100644
index 0000000..cb4a983
--- /dev/null
+++ b/gulpfile.js
@@ -0,0 +1,68 @@
+var gulp = require('gulp');
+var clean = require('gulp-clean');
+var ts = require('gulp-typescript');
+var fs = require('fs');
+var glob = require('glob');
+var spawnSync = require('child_process').spawnSync;
+var through = require('through2');
+
+var tsProject = ts.createProject('tsconfig.json');
+
+function cleanTypeScript() {
+    return gulp.src('themes/ts-built', {read: false})
+        .pipe(clean());
+}
+
+function buildTypeScript() {
+    return tsProject.src()
+        .pipe(tsProject())
+        .js.pipe(gulp.dest('./themes/ts-built'));
+}
+
+function generateJson() {
+    return gulp.src('themes/ts-built/**/*.js')
+        .pipe(through.obj(function(file, encoding, callback) {
+            spawnSync('node', [ file.path ]);
+            callback(null, file);
+        }));
+}
+
+function copyJson() {
+    return gulp.src('themes/ts-built/**/*.json')
+        .pipe(gulp.dest('themes'));
+}
+
+function inject(done) {
+    var themes = [];
+    glob.sync('./themes/dark/*.json').forEach(function(file) {
+        var theme = require(file);
+        themes.push({
+            label: theme.name,
+            uiTheme: 'vs-dark',
+            path: file
+        });
+    });
+    glob.sync('./themes/light/*.json').forEach(function(file) {
+        var theme = require(file);
+        themes.push({
+            label: theme.name,
+            uiTheme: 'vs',
+            path: file
+        });
+    });
+    var package = require('./package.json');
+    package.contributes.themes = themes;
+    fs.writeFile('./package.json', JSON.stringify(package, null, 2), function(err) {
+        if (err) return console.log(err);
+        console.log('package.json updated');
+    });
+    done();
+}
+
+gulp.task('build', gulp.series(cleanTypeScript, buildTypeScript, generateJson, copyJson, inject));
+
+gulp.task('default', gulp.series('build'));
+ 
+gulp.task('watch', gulp.series('build', function() {
+    gulp.watch('themes/src/**/*.ts', gulp.series('build'));
+}));
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index 0787a89..9c4dbf8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "linux-themes",
-  "version": "1.0.1",
+  "version": "1.1.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -10,56 +10,2163 @@
       "integrity": "sha1-6m3L3bxbWEyD8Gxg6Cc22PuwwjU=",
       "dev": true
     },
+    "ansi-colors": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/ansi-colors/-/ansi-colors-1.1.0.tgz",
+      "integrity": "sha512-SFKX67auSNoVR38N3L+nvsPjOE0bybKTYbkf5tRvushrAPQ9V75huw0ZxBkKVeRU9kqH3d6HA4xTckbwZ4ixmA==",
+      "dev": true,
+      "requires": {
+        "ansi-wrap": "^0.1.0"
+      }
+    },
+    "ansi-cyan": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-cyan/-/ansi-cyan-0.1.1.tgz",
+      "integrity": "sha1-U4rlKK+JgvKK4w2G8vF0VtJgmHM=",
+      "dev": true,
+      "requires": {
+        "ansi-wrap": "0.1.0"
+      }
+    },
+    "ansi-gray": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-gray/-/ansi-gray-0.1.1.tgz",
+      "integrity": "sha1-KWLPVOyXksSFEKPetSRDaGHvclE=",
+      "dev": true,
+      "requires": {
+        "ansi-wrap": "0.1.0"
+      }
+    },
+    "ansi-red": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-red/-/ansi-red-0.1.1.tgz",
+      "integrity": "sha1-jGOPnRCAgAo1PJwoyKgcpHBdlGw=",
+      "dev": true,
+      "requires": {
+        "ansi-wrap": "0.1.0"
+      }
+    },
+    "ansi-regex": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
+      "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
+      "dev": true
+    },
+    "ansi-styles": {
+      "version": "2.2.1",
+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-2.2.1.tgz",
+      "integrity": "sha1-tDLdM1i2NM914eRmQ2gkBTPB3b4=",
+      "dev": true
+    },
+    "ansi-wrap": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/ansi-wrap/-/ansi-wrap-0.1.0.tgz",
+      "integrity": "sha1-qCJQ3bABXponyoLoLqYDu/pF768=",
+      "dev": true
+    },
+    "anymatch": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-2.0.0.tgz",
+      "integrity": "sha512-5teOsQWABXHHBFP9y3skS5P3d/WfWXpv3FUpy+LorMrNYaT9pI4oLMQX7jzQ2KklNpGpWHzdCXTDT2Y3XGlZBw==",
+      "dev": true,
+      "requires": {
+        "micromatch": "^3.1.4",
+        "normalize-path": "^2.1.1"
+      }
+    },
+    "append-buffer": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/append-buffer/-/append-buffer-1.0.2.tgz",
+      "integrity": "sha1-2CIM9GYIFSXv6lBhTz3mUU36WPE=",
+      "dev": true,
+      "requires": {
+        "buffer-equal": "^1.0.0"
+      }
+    },
+    "archy": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/archy/-/archy-1.0.0.tgz",
+      "integrity": "sha1-+cjBN1fMHde8N5rHeyxipcKGjEA=",
+      "dev": true
+    },
+    "arr-diff": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/arr-diff/-/arr-diff-4.0.0.tgz",
+      "integrity": "sha1-1kYQdP6/7HHn4VI1dhoyml3HxSA=",
+      "dev": true
+    },
+    "arr-filter": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/arr-filter/-/arr-filter-1.1.2.tgz",
+      "integrity": "sha1-Q/3d0JHo7xGqTEXZzcGOLf8XEe4=",
+      "dev": true,
+      "requires": {
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+      }
+    },
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+      "resolved": "https://registry.npmjs.org/arr-flatten/-/arr-flatten-1.1.0.tgz",
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+      "dev": true
+    },
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+      "resolved": "https://registry.npmjs.org/arr-map/-/arr-map-2.0.2.tgz",
+      "integrity": "sha1-Onc0X/wc814qkYJWAfnljy4kysQ=",
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+      "requires": {
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+      "resolved": "https://registry.npmjs.org/arr-union/-/arr-union-3.1.0.tgz",
+      "integrity": "sha1-45sJrqne+Gao8gbiiK9jkZuuOcQ=",
+      "dev": true
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+    "array-differ": {
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+      "resolved": "https://registry.npmjs.org/array-differ/-/array-differ-1.0.0.tgz",
+      "integrity": "sha1-7/UuN1gknTO+QCuLuOVkuytdQDE=",
+      "dev": true
+    },
+    "array-each": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/array-each/-/array-each-1.0.1.tgz",
+      "integrity": "sha1-p5SvDAWrF1KEbudTofIRoFugxE8=",
+      "dev": true
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+        "array-initial": "^1.0.0",
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+      "integrity": "sha1-5tXqjF2tABMEpwsiY4RH9pyy+Ak=",
+      "dev": true
+    },
+    "binary-extensions": {
+      "version": "1.13.1",
+      "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-1.13.1.tgz",
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+      "dev": true
+    },
     "brace-expansion": {
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       "integrity": "sha1-PH/L9SnYcibz0vUrlm/1Jx60Qd0=",
       "dev": true,
       "requires": {
-        "balanced-match": "1.0.0",
+        "balanced-match": "^1.0.0",
         "concat-map": "0.0.1"
       }
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+    "braces": {
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+      "dev": true,
+      "requires": {
+        "arr-flatten": "^1.1.0",
+        "array-unique": "^0.3.2",
+        "extend-shallow": "^2.0.1",
+        "fill-range": "^4.0.0",
+        "isobject": "^3.0.1",
+        "repeat-element": "^1.1.2",
+        "snapdragon": "^0.8.1",
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