Merge branch 'backport-revert-server-target-backtraces' into release-3.10

Merge-request: !1564

4 files changed, 13 insertions, 95 deletions

diff --git a/Help/manual/cmake-server.7.rst b/Help/manual/cmake-server.7.rst
index c56e5a7161..50a90ee7d4 100644
--- a/Help/manual/cmake-server.7.rst
+++ b/Help/manual/cmake-server.7.rst
@@ -506,9 +506,6 @@ Each target object can have the following keys:
   with the sysroot path.
 "fileGroups"
   contains the source files making up the target.
-"crossReferences"
-  contains the location of the target in the corresponding CMakeLists.txt
-  file and the locations of the related statements like "target_link_libraries"
 
 FileGroups are used to group sources using similar settings together.
 
@@ -534,16 +531,6 @@ Each fileGroup object may contain the following keys:
 All file paths in the fileGroup are either absolute or relative to the
 sourceDirectory of the target.
 
-CrossReferences object is used to report the location of the target (including
-the entire call stack if the target is defined in a function) and the related
-"target_link_libraries", "target_include_directories", "target_compile_definitions"
-and "target_compile_options" statements.
-
-See the example below for details on the internal format of the "crossReferences" object.
-Line numbers stated in the "backtrace" entries are 1-based. The last entry of a backtrace
-is a special entry with missing "line" and "name" fields that specifies the initial
-CMakeLists.txt file.
-
 Example::
 
   [== "CMake Server" ==[
@@ -580,34 +567,7 @@ CMake will reply::
                 "linkerLanguage": "C",
                 "name": "cmForm",
                 "sourceDirectory": "/home/code/src/cmake/Source/CursesDialog/form",
-                "type": "STATIC_LIBRARY",
-                "crossReferences": {
-                   "backtrace": [
-                      {
-                         "line": 7,
-                         "name": "add_executable",
-                         "path": "C:/full/path/CMakeLists.txt"
-                      },
-                      {
-                         "path": "c:/full/path/CMakeLists.txt"
-                      }
-                   ],
-                   "relatedStatements": [
-                      {
-                         "backtrace": [
-                            {
-                               "line": 8,
-                               "name": "target_link_libraries",
-                               "path": "c:/full/path/CMakeLists.txt"
-                            },
-                            {
-                               "path": "c:/full/path/CMakeLists.txt"
-                            }
-                         ],
-                         "type": "target_link_libraries"
-                      }
-                   ]
-                 }
+                "type": "STATIC_LIBRARY"
               }
             ]
           },
diff --git a/Help/release/3.10.rst b/Help/release/3.10.rst
index 35fe602edc..6a19dbfe6e 100644
--- a/Help/release/3.10.rst
+++ b/Help/release/3.10.rst
@@ -255,3 +255,15 @@ Other Changes
   incompatible with the old behavior, it is expected that behavior
   under typical use cases with properly-quoted command-lines has
   not changed.
+
+Updates
+=======
+
+Changes made since CMake 3.10.0 include the following.
+
+3.10.1
+------
+
+* The :manual:`cmake-server(7)` ``codemodel`` response ``crossReferences``
+  field added by 3.10.0 has been dropped due to excessive memory usage.
+  Another approach will be needed to provide backtrace information.
diff --git a/Source/cmServerDictionary.h b/Source/cmServerDictionary.h
index 405ff6b128..e6a7ae6cae 100644
--- a/Source/cmServerDictionary.h
+++ b/Source/cmServerDictionary.h
@@ -89,11 +89,6 @@ static const std::string kWARN_UNUSED_KEY = "warnUnused";
 static const std::string kWATCHED_DIRECTORIES_KEY = "watchedDirectories";
 static const std::string kWATCHED_FILES_KEY = "watchedFiles";
 
-static const std::string kTARGET_CROSS_REFERENCES_KEY = "crossReferences";
-static const std::string kLINE_NUMBER_KEY = "line";
-static const std::string kBACKTRACE_KEY = "backtrace";
-static const std::string kRELATED_STATEMENTS_KEY = "relatedStatements";
-
 static const std::string kSTART_MAGIC = "[== \"CMake Server\" ==[";
 static const std::string kEND_MAGIC = "]== \"CMake Server\" ==]";
 
diff --git a/Source/cmServerProtocol.cxx b/Source/cmServerProtocol.cxx
index e835b7a2c3..13b18c24c3 100644
--- a/Source/cmServerProtocol.cxx
+++ b/Source/cmServerProtocol.cxx
@@ -9,7 +9,6 @@
 #include "cmGeneratorTarget.h"
 #include "cmGlobalGenerator.h"
 #include "cmLinkLineComputer.h"
-#include "cmListFileCache.h"
 #include "cmLocalGenerator.h"
 #include "cmMakefile.h"
 #include "cmServer.h"
@@ -20,7 +19,6 @@
 #include "cmStateSnapshot.h"
 #include "cmStateTypes.h"
 #include "cmSystemTools.h"
-#include "cmTarget.h"
 #include "cm_uv.h"
 #include "cmake.h"
 
@@ -732,37 +730,6 @@ static Json::Value DumpSourceFilesList(
   return result;
 }
 
-static Json::Value DumpBacktrace(const cmListFileBacktrace& backtrace)
-{
-  Json::Value result = Json::arrayValue;
-
-  cmListFileBacktrace backtraceCopy = backtrace;
-  while (!backtraceCopy.Top().FilePath.empty()) {
-    Json::Value entry = Json::objectValue;
-    entry[kPATH_KEY] = backtraceCopy.Top().FilePath;
-    if (backtraceCopy.Top().Line) {
-      entry[kLINE_NUMBER_KEY] = static_cast<int>(backtraceCopy.Top().Line);
-    }
-    if (!backtraceCopy.Top().Name.empty()) {
-      entry[kNAME_KEY] = backtraceCopy.Top().Name;
-    }
-    result.append(entry);
-    backtraceCopy = backtraceCopy.Pop();
-  }
-  return result;
-}
-
-static void DumpBacktraceRange(Json::Value& result, const std::string& type,
-                               cmBacktraceRange range)
-{
-  for (auto const& bt : range) {
-    Json::Value obj = Json::objectValue;
-    obj[kTYPE_KEY] = type;
-    obj[kBACKTRACE_KEY] = DumpBacktrace(bt);
-    result.append(obj);
-  }
-}
-
 static Json::Value DumpTarget(cmGeneratorTarget* target,
                               const std::string& config)
 {
@@ -797,22 +764,6 @@ static Json::Value DumpTarget(cmGeneratorTarget* target,
 
   result[kFULL_NAME_KEY] = target->GetFullName(config);
 
-  Json::Value crossRefs = Json::objectValue;
-  crossRefs[kBACKTRACE_KEY] = DumpBacktrace(target->Target->GetBacktrace());
-
-  Json::Value statements = Json::arrayValue;
-  DumpBacktraceRange(statements, "target_compile_definitions",
-                     target->Target->GetCompileDefinitionsBacktraces());
-  DumpBacktraceRange(statements, "target_include_directories",
-                     target->Target->GetIncludeDirectoriesBacktraces());
-  DumpBacktraceRange(statements, "target_compile_options",
-                     target->Target->GetCompileOptionsBacktraces());
-  DumpBacktraceRange(statements, "target_link_libraries",
-                     target->Target->GetLinkImplementationBacktraces());
-
-  crossRefs[kRELATED_STATEMENTS_KEY] = std::move(statements);
-  result[kTARGET_CROSS_REFERENCES_KEY] = std::move(crossRefs);
-
   if (target->HaveWellDefinedOutputFiles()) {
     Json::Value artifacts = Json::arrayValue;
     artifacts.append(