From efe57733cac305533c61c7bea3d51b302bbb4d19 Mon Sep 17 00:00:00 2001
From: Daniel <nieltansah@gmail.com>
Date: Sat, 13 Jan 2018 16:52:21 +0700
Subject: [PATCH] Add a way to override description for tsconfig.json

---
 src/compiler/commandLineParser.ts | 6 ++++--
 src/compiler/types.ts             | 1 +
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/compiler/commandLineParser.ts b/src/compiler/commandLineParser.ts
index 4813d4b4300..877928ba1a1 100644
--- a/src/compiler/commandLineParser.ts
+++ b/src/compiler/commandLineParser.ts
@@ -151,7 +151,8 @@ namespace ts {
             },
             showInSimplifiedHelpView: true,
             category: Diagnostics.Basic_Options,
-            description: Diagnostics.Specify_library_files_to_be_included_in_the_compilation_Colon
+            description: Diagnostics.Specify_library_files_to_be_included_in_the_compilation_Colon,
+            descriptionOnTSConfig: Diagnostics.Specify_library_files_to_be_included_in_the_compilation
         },
         {
             name: "allowJs",
@@ -1351,7 +1352,8 @@ namespace ts {
                         optionName = `// "${option.name}": ${JSON.stringify(getDefaultValueForOption(option))},`;
                     }
                     nameColumn.push(optionName);
-                    descriptionColumn.push(`/* ${option.description && getLocaleSpecificMessage(option.description) || option.name} */`);
+                    const optionDescription = option.descriptionOnTSConfig || option.description;
+                    descriptionColumn.push(`/* ${optionDescription && getLocaleSpecificMessage(optionDescription) || option.name} */`);
                     marginLength = Math.max(optionName.length, marginLength);
                 }
             });
diff --git a/src/compiler/types.ts b/src/compiler/types.ts
index e4ada136730..2265339d64b 100644
--- a/src/compiler/types.ts
+++ b/src/compiler/types.ts
@@ -4120,6 +4120,7 @@ namespace ts {
         isFilePath?: boolean;                                   // True if option value is a path or fileName
         shortName?: string;                                     // A short mnemonic for convenience - for instance, 'h' can be used in place of 'help'
         description?: DiagnosticMessage;                        // The message describing what the command line switch does
+        descriptionOnTSConfig?: DiagnosticMessage;              // The message describing what the option does in tsconfig.json file
         paramType?: DiagnosticMessage;                          // The name to be used for a non-boolean option's parameter
         isTSConfigOnly?: boolean;                               // True if option can only be specified via tsconfig.json file
         isCommandLineOnly?: boolean;