Process: Add sys::Process::FileDescriptorHasColors().

llvm-svn: 160557

2 files changed, 16 insertions, 10 deletions

diff --git a/llvm/lib/Support/Unix/Process.inc b/llvm/lib/Support/Unix/Process.inc
index 4e1bd5db142..174112e8c2a 100644
--- a/llvm/lib/Support/Unix/Process.inc
+++ b/llvm/lib/Support/Unix/Process.inc
@@ -249,16 +249,18 @@ static bool terminalHasColors() {
   return false;
 }
 
+bool Process::FileDescriptorHasColors(int fd) {
+  // A file descriptor has colors if it is displayed and the terminal has
+  // colors.
+  return FileDescriptorIsDisplayed(fd) && terminalHasColors();
+}
+
 bool Process::StandardOutHasColors() {
-  if (!StandardOutIsDisplayed())
-    return false;
-  return terminalHasColors();
+  return FileDescriptorHasColors(STDOUT_FILENO);
 }
 
 bool Process::StandardErrHasColors() {
-  if (!StandardErrIsDisplayed())
-    return false;
-  return terminalHasColors();
+  return FileDescriptorHasColors(STDERR_FILENO);
 }
 
 bool Process::ColorNeedsFlush() {
diff --git a/llvm/lib/Support/Windows/Process.inc b/llvm/lib/Support/Windows/Process.inc
index 6a1270c2f30..43ba028a898 100644
--- a/llvm/lib/Support/Windows/Process.inc
+++ b/llvm/lib/Support/Windows/Process.inc
@@ -153,13 +153,17 @@ unsigned Process::StandardErrColumns() {
   return Columns;
 }
 
-// It always has colors.
-bool Process::StandardErrHasColors() {
-  return StandardErrIsDisplayed();
+// The terminal always has colors.
+bool FileDescriptorHasColors(int fd) {
+  return FileDescriptorIsDisplayed(fd);
 }
 
 bool Process::StandardOutHasColors() {
-  return StandardOutIsDisplayed();
+  return FileDescriptorHasColors(1);
+}
+
+bool Process::StandardErrHasColors() {
+  return FileDescriptorHasColors(2);
 }
 
 namespace {