r303670 - [GSoC] Shell autocompletion for clang

[Yuka Takahashi via cfe-commits]

Author: yamaguchi
Date: Tue May 23 13:39:08 2017
New Revision: 303670

URL: http://llvm.org/viewvc/llvm-project?rev=303670&view=rev
Log:
[GSoC] Shell autocompletion for clang

Summary:
This is a first patch for GSoC project, bash-completion for clang.
To use this on bash, please run `source clang/utils/bash-autocomplete.sh`.
bash-autocomplete.sh is code for bash-completion.

Simple flag completion and path completion is available in this patch.

Reviewers: teemperor, v.g.vassilev, ruiu, Bigcheese, efriedma

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D33237

Added:
    cfe/trunk/test/Driver/autocomplete.c
    cfe/trunk/utils/bash-autocomplete.sh
Modified:
    cfe/trunk/CMakeLists.txt
    cfe/trunk/include/clang/Driver/Options.td
    cfe/trunk/lib/Driver/Driver.cpp

Modified: cfe/trunk/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/CMakeLists.txt?rev=303670&r1=303669&r2=303670&view=diff
==============================================================================
--- cfe/trunk/CMakeLists.txt (original)
+++ cfe/trunk/CMakeLists.txt Tue May 23 13:39:08 2017
@@ -359,6 +359,10 @@ if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
     PATTERN "*.inc"
     PATTERN "*.h"
     )
+
+  install(PROGRAMS utils/bash-autocomplete.sh
+    DESTINATION share/clang
+    )
 endif()
 
 add_definitions( -D_GNU_SOURCE )

Modified: cfe/trunk/include/clang/Driver/Options.td
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/Options.td?rev=303670&r1=303669&r2=303670&view=diff
==============================================================================
--- cfe/trunk/include/clang/Driver/Options.td (original)
+++ cfe/trunk/include/clang/Driver/Options.td Tue May 23 13:39:08 2017
@@ -469,6 +469,7 @@ def arch__errors__fatal : Flag<["-"], "a
 def arch : Separate<["-"], "arch">, Flags<[DriverOption]>;
 def arch__only : Separate<["-"], "arch_only">;
 def a : Joined<["-"], "a">;
+def autocomplete : Joined<["--"], "autocomplete=">;
 def bind__at__load : Flag<["-"], "bind_at_load">;
 def bundle__loader : Separate<["-"], "bundle_loader">;
 def bundle : Flag<["-"], "bundle">;

Modified: cfe/trunk/lib/Driver/Driver.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/Driver.cpp?rev=303670&r1=303669&r2=303670&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/Driver.cpp (original)
+++ cfe/trunk/lib/Driver/Driver.cpp Tue May 23 13:39:08 2017
@@ -1216,6 +1216,13 @@ bool Driver::HandleImmediateArgs(const C
     return false;
   }
 
+  if (Arg *A = C.getArgs().getLastArg(options::OPT_autocomplete)) {
+    // Print out all options that start with a given argument. This is used for
+    // shell autocompletion.
+    llvm::outs() << llvm::join(Opts->findByPrefix(A->getValue()), " ") << '\n';
+    return false;
+  }
+
   if (C.getArgs().hasArg(options::OPT_print_libgcc_file_name)) {
     ToolChain::RuntimeLibType RLT = TC.GetRuntimeLibType(C.getArgs());
     switch (RLT) {

Added: cfe/trunk/test/Driver/autocomplete.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/autocomplete.c?rev=303670&view=auto
==============================================================================
--- cfe/trunk/test/Driver/autocomplete.c (added)
+++ cfe/trunk/test/Driver/autocomplete.c Tue May 23 13:39:08 2017
@@ -0,0 +1,6 @@
+// RUN: %clang --autocomplete=-fsyn | FileCheck %s -check-prefix=FSYN
+// FSYN: -fsyntax-only
+// RUN: %clang --autocomplete=-s | FileCheck %s -check-prefix=STD
+// STD: -std={{.*}}-stdlib=
+// RUN: %clang --autocomplete=foo | not FileCheck %s -check-prefix=NONE
+// NONE: foo

Added: cfe/trunk/utils/bash-autocomplete.sh
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/utils/bash-autocomplete.sh?rev=303670&view=auto
==============================================================================
--- cfe/trunk/utils/bash-autocomplete.sh (added)
+++ cfe/trunk/utils/bash-autocomplete.sh Tue May 23 13:39:08 2017
@@ -0,0 +1,14 @@
+# Please add "source /path/to/bash-autocomplete.sh" to your .bashrc to use this.
+_clang()
+{
+  local cur prev words cword flags
+  _init_completion -n : || return
+
+  flags=$( clang --autocomplete="$cur" )
+  if [[ "$flags" == "" || "$cur" == "" ]]; then
+    _filedir
+  else
+    COMPREPLY=( $( compgen -W "$flags" -- "$cur" ) )
+  fi
+} 
+complete -F _clang clang