[Driver] Add command line option to allow loading local lldbinit file.

This patch adds a command line flag that allows lldb to load local
lldbinit files.

Differential revision: https://reviews.llvm.org/D61578

llvm-svn: 360172

lldb/lit/Driver/LocalLLDBInit.test

@@ -1,9 +1,12 @@
 # RUN: mkdir -p %t.root
+# RUN: mkdir -p %t.home
 # RUN: cp %S/Inputs/.lldbinit %t.root
 # RUN: cd %t.root
-# RUN: %lldb-init -o 'settings show frame-format' 2>&1 | FileCheck %s --check-prefix=INIT --check-prefix=CHECK
+# RUN: env HOME=%t.home %lldb-init -o 'settings show frame-format' 2>&1 | FileCheck %s --check-prefix=WARNINIT --check-prefix=CHECK
+# RUN: env HOME=%t.home %lldb-init -local-lldbinit -o 'settings show frame-format' 2>&1 | FileCheck %s --check-prefix=ALLOWINIT --check-prefix=NOINIT
 # RUN: %lldb -o 'settings show frame-format' 2>&1 | FileCheck %s --check-prefix=NOINIT --check-prefix=CHECK
 
-# INIT: There is a .lldbinit file in the current directory which is not being read.
+# WARNINIT: There is a .lldbinit file in the current directory which is not being read.
 # NOINIT-NOT: There is a .lldbinit file in the current directory which is not being read.
 # CHECK-NOT: bogus
+# ALLOWINIT: bogus

lldb/tools/driver/Driver.cpp

@@ -222,6 +222,11 @@ SBError Driver::ProcessArgs(const opt::InputArgList &args, bool &exiting) {
     m_debugger.SkipAppInitFiles(true);
   }
 
+  if (args.hasArg(OPT_local_lldbinit)) {
+    lldb::SBDebugger::SetInternalVariable("target.load-cwd-lldbinit", "true",
+                                          m_debugger.GetInstanceName());
+  }
+
   if (args.hasArg(OPT_no_use_colors)) {
     m_debugger.SetUseColor(false);
   }

lldb/tools/driver/Options.td

@@ -95,6 +95,9 @@ def: Flag<["-"], "x">,
   Alias<no_lldbinit>,
   HelpText<"Alias for --no-lldbinit">,
   Group<grp_command>;
+def local_lldbinit: F<"local-lldbinit">,
+  HelpText<"Allow the debugger to parse the .lldbinit files in the current working directory, unless --no-lldbinit is passed.">,
+  Group<grp_command>;
 
 def batch: F<"batch">,
   HelpText<"Tells the debugger to run the commands from -s, -S, -o & -O, and then quit.">,