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718a779582
(Relands r344930, reverted in r344935, and now hopefully fixed for Windows.) While this change specifically targets FileCheck, it affects any tool using the same SourceMgr facilities. Previously, -color was documented in FileCheck's -help output, but -color had no effect. Now, -color obeys its documentation: it forces colors to be used in FileCheck diagnostics even when stderr is not a terminal. -color is especially helpful when combined with FileCheck's -v, which can produce a long series of diagnostics that you might wish to pipe to a pager, such as less -R. The WithColor extensions here will also help to clean up color usage in FileCheck's annotated dump of input, which is proposed in D52999. Reviewed By: JDevlieghere, zturner Differential Revision: https://reviews.llvm.org/D53419 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@345202 91177308-0d34-0410-b5e6-96231b3b80d8
122 lines
3.6 KiB
C++
122 lines
3.6 KiB
C++
//===- WithColor.cpp ------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/WithColor.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace llvm;
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cl::OptionCategory llvm::ColorCategory("Color Options");
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static cl::opt<cl::boolOrDefault>
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UseColor("color", cl::cat(ColorCategory),
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cl::desc("Use colors in output (default=autodetect)"),
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cl::init(cl::BOU_UNSET));
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WithColor::WithColor(raw_ostream &OS, HighlightColor Color, bool DisableColors)
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: OS(OS), DisableColors(DisableColors) {
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// Detect color from terminal type unless the user passed the --color option.
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if (colorsEnabled()) {
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switch (Color) {
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case HighlightColor::Address:
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OS.changeColor(raw_ostream::YELLOW);
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break;
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case HighlightColor::String:
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OS.changeColor(raw_ostream::GREEN);
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break;
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case HighlightColor::Tag:
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OS.changeColor(raw_ostream::BLUE);
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break;
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case HighlightColor::Attribute:
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OS.changeColor(raw_ostream::CYAN);
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break;
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case HighlightColor::Enumerator:
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OS.changeColor(raw_ostream::MAGENTA);
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break;
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case HighlightColor::Macro:
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OS.changeColor(raw_ostream::RED);
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break;
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case HighlightColor::Error:
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OS.changeColor(raw_ostream::RED, true);
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break;
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case HighlightColor::Warning:
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OS.changeColor(raw_ostream::MAGENTA, true);
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break;
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case HighlightColor::Note:
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OS.changeColor(raw_ostream::BLACK, true);
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break;
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case HighlightColor::Remark:
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OS.changeColor(raw_ostream::BLUE, true);
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break;
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}
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}
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}
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raw_ostream &WithColor::error() { return error(errs()); }
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raw_ostream &WithColor::warning() { return warning(errs()); }
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raw_ostream &WithColor::note() { return note(errs()); }
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raw_ostream &WithColor::remark() { return remark(errs()); }
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raw_ostream &WithColor::error(raw_ostream &OS, StringRef Prefix,
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bool DisableColors) {
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if (!Prefix.empty())
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OS << Prefix << ": ";
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return WithColor(OS, HighlightColor::Error, DisableColors).get()
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<< "error: ";
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}
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raw_ostream &WithColor::warning(raw_ostream &OS, StringRef Prefix,
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bool DisableColors) {
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if (!Prefix.empty())
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OS << Prefix << ": ";
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return WithColor(OS, HighlightColor::Warning, DisableColors).get()
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<< "warning: ";
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}
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raw_ostream &WithColor::note(raw_ostream &OS, StringRef Prefix,
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bool DisableColors) {
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if (!Prefix.empty())
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OS << Prefix << ": ";
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return WithColor(OS, HighlightColor::Note, DisableColors).get() << "note: ";
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}
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raw_ostream &WithColor::remark(raw_ostream &OS, StringRef Prefix,
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bool DisableColors) {
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if (!Prefix.empty())
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OS << Prefix << ": ";
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return WithColor(OS, HighlightColor::Remark, DisableColors).get()
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<< "remark: ";
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}
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bool WithColor::colorsEnabled() {
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if (DisableColors)
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return false;
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if (UseColor == cl::BOU_UNSET)
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return OS.has_colors();
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return UseColor == cl::BOU_TRUE;
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}
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WithColor &WithColor::changeColor(raw_ostream::Colors Color, bool Bold,
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bool BG) {
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if (colorsEnabled())
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OS.changeColor(Color, Bold, BG);
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return *this;
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}
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WithColor &WithColor::resetColor() {
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if (colorsEnabled())
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OS.resetColor();
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return *this;
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}
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WithColor::~WithColor() { resetColor(); }
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