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LibCore: Add File::open_file_or_standard_stream()

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This commit is contained in:
demostanis 2022-08-22 13:24:56 +02:00 • committed by Sam Atkins
parent b66ceafaba
commit 1c5f6003d7
2 changed files with 17 additions and 0 deletions
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15
Userland/Libraries/LibCore/Stream.cpp
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@ -153,6 +153,21 @@ bool File::exists(StringView filename)
return !Core::System::stat(filename).is_error(); return !Core::System::stat(filename).is_error();
} }
ErrorOr<NonnullOwnPtr<File>> File::open_file_or_standard_stream(StringView filename, OpenMode mode)
{
if (!filename.is_empty() && filename != "-"sv)
return File::open(filename, mode);
switch (mode) {
case OpenMode::Read:
return File::adopt_fd(STDIN_FILENO, mode);
case OpenMode::Write:
return File::adopt_fd(STDOUT_FILENO, mode);
default:
VERIFY_NOT_REACHED();
}
}
int File::open_mode_to_options(OpenMode mode) int File::open_mode_to_options(OpenMode mode)
{ {
int flags = 0; int flags = 0;

2
Userland/Libraries/LibCore/Stream.h
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@ -185,6 +185,8 @@ public:
static ErrorOr<NonnullOwnPtr<File>> adopt_fd(int fd, OpenMode); static ErrorOr<NonnullOwnPtr<File>> adopt_fd(int fd, OpenMode);
static bool exists(StringView filename); static bool exists(StringView filename);
static ErrorOr<NonnullOwnPtr<File>> open_file_or_standard_stream(StringView filename, OpenMode mode);
File(File&& other) { operator=(move(other)); } File(File&& other) { operator=(move(other)); }
File& operator=(File&& other) File& operator=(File&& other)