From ce3d73e68de3c5f507971dda42ad3c030e21bb89 Mon Sep 17 00:00:00 2001
From: Werner Thumann <thumannw@gmail.com>
Date: Wed, 2 Feb 2022 21:13:06 +0100
Subject: [PATCH 1/2] Do not write TOC when running knitCheck

---
 src/Knit.kt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Knit.kt b/src/Knit.kt
index 76b3b1a..a22464e 100644
--- a/src/Knit.kt
+++ b/src/Knit.kt
@@ -434,7 +434,7 @@ fun KnitContext.knit(inputFile: File): Boolean {
         }
         addAll(markdown.postTocText)
     }
-    if (newLines != markdown.inText) writeLines(inputFile, newLines)
+    if (newLines != markdown.inText) writeLinesIfNeeded(inputFile, newLines)
     // check apiRefs
     for (apiRef in allApiRefs) {
         if (apiRef.name in remainingApiRefNames) {

From 128fa858fa2b65dc47bdb971df68d84fa10525f4 Mon Sep 17 00:00:00 2001
From: Werner Thumann <thumannw@gmail.com>
Date: Thu, 3 Feb 2022 17:42:09 +0100
Subject: [PATCH 2/2] Avoid reading file twice when TOC is out-of-date

---
 src/Knit.kt | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/src/Knit.kt b/src/Knit.kt
index a22464e..335222b 100644
--- a/src/Knit.kt
+++ b/src/Knit.kt
@@ -434,7 +434,7 @@ fun KnitContext.knit(inputFile: File): Boolean {
         }
         addAll(markdown.postTocText)
     }
-    if (newLines != markdown.inText) writeLinesIfNeeded(inputFile, newLines)
+    if (newLines != markdown.inText) checkOrWrite(inputFile, markdown.inText, newLines)
     // check apiRefs
     for (apiRef in allApiRefs) {
         if (apiRef.name in remainingApiRefNames) {
@@ -662,12 +662,16 @@ fun KnitContext.writeLinesIfNeeded(file: File, outLines: List<String>) {
         null
     }
     if (outLines != oldLines) {
-        if (check) {
-            val text = formatOutdated(oldLines, outLines)
-            log.outdated("WARNING: $file: $text")
-        } else {
-            writeLines(file, outLines)
-        }
+        checkOrWrite(file, oldLines, outLines)
+    }
+}
+
+private fun KnitContext.checkOrWrite(file: File, oldLines: List<String>?, outLines: List<String>) {
+    if (check) {
+        val text = formatOutdated(oldLines, outLines)
+        log.outdated("WARNING: $file: $text")
+    } else {
+        writeLines(file, outLines)
     }
 }