fix: support for modules inside a mono-repo

The "github"- and "withPackageOf"-helper now use the
"repository.directory" value of a dependency's
package.json to compute the url to files correctly
if the dependency is located in a subdirectory of
the git repository.

handlebars/helpers/index.js

@@ -485,8 +485,9 @@ function arr(...args) {
 function _githubUrl(resolvedPackageRoot) {
   const { packageJson, relativeFile } = resolvedPackageRoot
   const url = repoWebUrl(packageJson && packageJson.repository && packageJson.repository.url)
+  const relativePathWithinRepo = _relativePathWithinRepository(packageJson, relativeFile)
   if (url && url.match(/github.com/)) {
-    return `${url}/blob/v${packageJson.version}/${relativeFile}`
+    return `${url}/blob/v${packageJson.version}/${relativePathWithinRepo}`
   }
 }
 
@@ -497,8 +498,10 @@ function _githubUrl(resolvedPackageRoot) {
 function _rawGithubUrl(resolvedPackageRoot) {
   const { packageJson, relativeFile } = resolvedPackageRoot
   const orgRepo = _githubOrgRepo(packageJson && packageJson.repository && packageJson.repository.url)
+  const relativePathWithinRepo = _relativePathWithinRepository(packageJson, relativeFile)
+
   if (orgRepo) {
-    return `https://raw.githubusercontent.com/${orgRepo}/v${packageJson.version}/${relativeFile}`
+    return `https://raw.githubusercontent.com/${orgRepo}/v${packageJson.version}/${relativePathWithinRepo}`
   }
 }
 
@@ -515,3 +518,12 @@ function _githubOrgRepo(gitUrl) {
   const match = gitUrl.match(/.*?(:\/\/|@)github\.com[/:](.*?)(#.*?)?$/)
   return match && match[2] && match[2].replace(/\.git$/, '')
 }
+
+function _relativePathWithinRepository(packageJson, fileRelativeToPackageJson) {
+  const directory = packageJson && packageJson.repository && packageJson.repository.directory
+  if (directory) {
+    // This is a monorepo and the package.json is in a sub-directory
+    return `${directory}/${fileRelativeToPackageJson}`
+  }
+  return fileRelativeToPackageJson
+}

test/helper-spec.js

@@ -319,7 +319,9 @@ describe('thought-helpers:', function() {
       return expectHbs('{{#withPackageOf file}}{{@rawUrl}}{{/withPackageOf}}', {
         file: require.resolve('customize/helpers-io.js')
       }).to.eventually.equal(
-        versions('https://raw.githubusercontent.com/bootprint/customize/CUSTOMIZE_VERSION/helpers-io.js')
+        versions(
+          'https://raw.githubusercontent.com/bootprint/bootprint-monorepo/CUSTOMIZE_VERSION/packages/customize/helpers-io.js'
+        )
       )
     })
 
@@ -351,13 +353,15 @@ describe('thought-helpers:', function() {
   describe('The "github"-helper', function() {
     it('should create a url to file on github (based on the current package version)', function() {
       return expectHbs('{{github file}}', { file: 'test/fixtures/shout.js' }).to.eventually.equal(
-        versions(fixture('include/github.default.md'))
+        versions('https://github.com/nknapp/thought/blob/THOUGHT_VERSION/test/fixtures/shout.js')
       )
     })
 
     it('should create a url files in dependency projects (based on the their current package version)', function() {
       return expectHbs('{{github file}}', { file: require.resolve('customize/helpers-io.js') }).to.eventually.equal(
-        versions(fixture('include/github.dependency.md'))
+        versions(
+          'https://github.com/bootprint/bootprint-monorepo/blob/CUSTOMIZE_VERSION/packages/customize/helpers-io.js'
+        )
       )
     })
   })