Add generic hugo command passthrough method

index.js

@@ -38,26 +38,32 @@ class Hugo {
   // Public.
   //
 
-  // Builds the Hugo source from sourcePath and writes the output at
-  // destinationPath. Note that destinationPath is relevant to sourcePath
-  // (don’t shoot me, this is a Hugo convention so I’m mirroring it for
-  // consistency with regular Hugo usage). The returned result is the
-  // object returned from the exec() call with stdout and stderr properties.
-  async build (sourcePath = '.', destinationPath = 'public/', baseURL = 'http://localhost:1313') {
-    const hugoBuildCommand = `${this.hugoBinaryPath} --source=${sourcePath} --destination=${destinationPath} --baseURL=${baseURL}`
+  // Runs a generic, blocking Hugo command using the passed arguments.
+  async command (args) {
+    const hugoCommand = `${this.hugoBinaryPath} ${args}`
     const options = {
       env: process.env
     }
-    const result = await exec(hugoBuildCommand, options)
+    const result = await exec(hugoCommand, options)
 
     if (result.stderr !== '') {
       // There was an error.
-      throw new HugoError('Build failed', result.stderr)
+      throw new HugoError(`Hugo command failed (arguments: ${args})`, result.stderr)
     }
 
     return result.stdout
   }
 
+  // Builds the Hugo source from sourcePath and writes the output at
+  // destinationPath. Note that destinationPath is relevant to sourcePath
+  // (don’t shoot me, this is a Hugo convention so I’m mirroring it for
+  // consistency with regular Hugo usage). The returned result is the
+  // object returned from the exec() call with stdout and stderr properties.
+  async build (sourcePath = '.', destinationPath = 'public/', baseURL = 'http://localhost:1313') {
+    const hugoBuildCommand = `--source=${sourcePath} --destination=${destinationPath} --baseURL=${baseURL}`
+    return await this.command(hugoBuildCommand)
+  }
+
   // Starts a Hugo server with defaults set for rendering to disk and using outside live reload.
   // (These are the defaults our current use case on Site.js).
   //