Add '-supported-checks-json' command line option

Summary:
...to dump the contents of checks.json.

This is useful for IDEs as they can find out now whether a particular
check is supported.

BUG: 409986

Differential Revision: https://phabricator.kde.org/D23680

1 files changed, 13 insertions, 1 deletions

diff --git a/src/ClazyStandaloneMain.cpp b/src/ClazyStandaloneMain.cpp
index b9af72d7..39af763b 100644
--- a/src/ClazyStandaloneMain.cpp
+++ b/src/ClazyStandaloneMain.cpp
@@ -24,12 +24,15 @@
 #include "Clazy.h"
 #include "ClazyContext.h"
 
+#include "checks.json.h"
+
 #include <clang/Tooling/CommonOptionsParser.h>
 #include <clang/Tooling/Tooling.h>
 #include <llvm/Support/CommandLine.h>
 #include <llvm/ADT/ArrayRef.h>
 #include <llvm/ADT/StringRef.h>
 
+#include <iostream>
 #include <string>
 
 namespace clang {
@@ -72,6 +75,9 @@ static cl::opt<std::string> s_ignoreDirs("ignore-dirs", cl::desc(R"(Regular expr
 directories for which diagnostics should never be emitted. Useful for ignoring 3rdparty code.)"),
                                          cl::init(""), cl::cat(s_clazyCategory));
 
+static cl::opt<bool> s_supportedChecks("supported-checks-json", cl::desc("Dump meta information about supported checks in JSON format."),
+                                       cl::init(false), cl::cat(s_clazyCategory));
+
 static cl::extrahelp s_commonHelp(CommonOptionsParser::HelpMessage);
 
 class ClazyToolActionFactory
@@ -116,7 +122,13 @@ public:
 
 int main(int argc, const char **argv)
 {
-    CommonOptionsParser optionsParser(argc, argv, s_clazyCategory);
+    CommonOptionsParser optionsParser(argc, argv, s_clazyCategory, cl::ZeroOrMore);
+
+    if (s_supportedChecks.getValue()) {
+        std::cout << SUPPORTED_CHECKS_JSON_STR;
+        return 0;
+    }
+
     ClangTool tool(optionsParser.getCompilations(), optionsParser.getSourcePathList());
 
     return tool.run(new ClazyToolActionFactory(optionsParser.getSourcePathList()));