Save and restore pending here docs when sourcing files (fixes #2803)

CHANGELOG.md

@@ -1,8 +1,9 @@
 ## Git
 ### Added
-- SC2324: Warn when x+=1 appends instead of increments.
+- SC2324: Warn when x+=1 appends instead of increments
 
 ### Fixed
+- source statements with here docs now work correctly
 
 ### Changed
 

src/ShellCheck/Checker.hs

@@ -508,5 +508,14 @@ prop_rcCanSuppressEarlyProblems2 = null result
         csScript = "!/bin/bash\necho 'hello world'"
     }
 
+prop_sourceWithHereDocWorks = null result
+  where
+    result = checkWithIncludes [("bar", "true\n")] "source bar << eof\nlol\neof"
+
+prop_hereDocsAreParsedWithoutTrailingLinefeed = 1044 `elem` result
+  where
+    result = check "cat << eof"
+
+
 return []
 runTests = $quickCheckAll

src/ShellCheck/Parser.hs

@@ -2283,8 +2283,13 @@ readSource t@(T_Redirecting _ _ (T_SimpleCommand cmdId _ (cmd:file':rest'))) = d
 
     subRead name script =
         withContext (ContextSource name) $
-            inSeparateContext $
-                subParse (initialPos name) (readScriptFile True) script
+            inSeparateContext $ do
+                oldState <- getState
+                setState $ oldState { pendingHereDocs = [] }
+                result <- subParse (initialPos name) (readScriptFile True) script
+                newState <- getState
+                setState $ newState { pendingHereDocs = pendingHereDocs oldState }
+                return result
 readSource t = return t
 
 
@@ -3322,6 +3327,7 @@ readScriptFile sourced = do
               then do
                     commands <- readCompoundListOrEmpty
                     id <- endSpan start
+                    readPendingHereDocs
                     verifyEof
                     let script = T_Annotation annotationId annotations $
                                     T_Script id shebang commands