WiP: feat(fs/glob): basic glob implementation

@xen-orchestra/fs/src/_parseGlob.js

@@ -0,0 +1,38 @@
+import escapeRegExp from 'lodash/escapeRegExp'
+
+const compileFragment = pattern =>
+  new RegExp(
+    `^${pattern
+      .split('*')
+      .map(escapeRegExp)
+      .join('[^]*')}$`
+  )
+
+export function parseGlob(pattern) {
+  const parts = []
+  while (pattern.length !== 0) {
+    const i = pattern.indexOf('*')
+    if (i === -1) {
+      parts.push(pattern)
+      break
+    }
+
+    let fragmentStart = pattern.lastIndexOf('/', i)
+    if (fragmentStart === -1) {
+      fragmentStart = 0
+    } else {
+      parts.push(pattern.slice(0, fragmentStart))
+      ++fragmentStart
+    }
+
+    let fragmentEnd = pattern.indexOf('/', i)
+    if (fragmentEnd === -1) {
+      fragmentEnd = pattern.length
+    }
+
+    parts.push(compileFragment(pattern.slice(fragmentStart, fragmentEnd)))
+
+    pattern = pattern.slice(fragmentEnd + 1)
+  }
+  return parts
+}

@xen-orchestra/fs/src/_parseGlob.spec.js

@@ -0,0 +1,12 @@
+/* eslint-env jest */
+
+import { parseGlob } from './_parseGlob'
+
+describe('parseGlob', () => {
+  it.each([['foo/*/bar*baz/qux', ['foo', /^[^]*$/, /^bar[^]*baz$/, 'qux']]])(
+    'parse %j correctly',
+    (pattern, result) => {
+      expect(parseGlob(pattern)).toEqual(result)
+    }
+  )
+})

@xen-orchestra/fs/src/abstract.js

@@ -14,6 +14,7 @@ import { type Readable, type Writable } from 'stream'
 
 import normalizePath from './_normalizePath'
 import { createChecksumStream, validChecksumOfReadStream } from './checksum'
+import { parseGlob } from './_parseGlob'
 
 const { dirname } = path.posix
 
@@ -258,6 +259,12 @@ export default class RemoteHandlerAbstract {
     )
   }
 
+  // basic glob support, only `*` is supported
+  async glob(pattern) {
+    const parts = parseGlob(pattern)
+    // TODO
+  }
+
   async list(
     dir: string,
     {