Improve error msg for ebook generation

1 files changed, 19 insertions, 1 deletions

diff --git a/lib/utils/error.js b/lib/utils/error.js
index 52281bf..27fa59d 100644
--- a/lib/utils/error.js
+++ b/lib/utils/error.js
@@ -41,6 +41,15 @@ var FileOutOfScopeError = TypedError({
     code: 'EACCESS'
 });
 
+// A file is outside the scope
+var RequireInstallError = TypedError({
+    type: 'install.required',
+    message: '"{cmd}" is not installed.\n{install}',
+    cmd: null,
+    code: 'ENOENT',
+    install: ''
+});
+
 // Error for nunjucks templates
 var TemplateError = WrappedError({
     message: 'Error compiling template "{filename}": {origMessage}',
@@ -55,12 +64,19 @@ var PluginError = WrappedError({
     plugin: null
 });
 
-// Error for nunjucks templates
+// Error with the book's configuration
 var ConfigurationError = WrappedError({
     message: 'Error with book\'s configuration: {origMessage}',
     type: 'configuration'
 });
 
+// Error during ebook generation
+var EbookError = WrappedError({
+    message: 'Error during ebook generation: {origMessage}\n{stdout}',
+    type: 'ebook',
+    stdout: ''
+});
+
 // Deprecate methods/fields
 function deprecateMethod(fn, msg) {
     return deprecated.method(msg, log.warn.ln, fn);
@@ -74,6 +90,7 @@ module.exports = {
 
     ParsingError: ParsingError,
     OutputError: OutputError,
+    RequireInstallError: RequireInstallError,
 
     FileNotFoundError: FileNotFoundError,
     FileOutOfScopeError: FileOutOfScopeError,
@@ -81,6 +98,7 @@ module.exports = {
     TemplateError: TemplateError,
     PluginError: PluginError,
     ConfigurationError: ConfigurationError,
+    EbookError: EbookError,
 
     deprecateMethod: deprecateMethod,
     deprecateField: deprecateField