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672d2c1255
This patch removes the comments following the header includes. They were added after running IWYU over the LLDB codebase. However they add little value, are often outdates and burdensome to maintain. Differential revision: https://reviews.llvm.org/D54385 llvm-svn: 346625
95 lines
2.5 KiB
C++
95 lines
2.5 KiB
C++
//===--------------------- TildeExpressionResolver.cpp ----------*- C++ -*-===//
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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 "lldb/Utility/TildeExpressionResolver.h"
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#include <assert.h>
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#include <system_error>
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/raw_ostream.h"
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#if !defined(_WIN32)
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#include <pwd.h>
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#endif
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using namespace lldb_private;
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using namespace llvm;
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namespace fs = llvm::sys::fs;
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namespace path = llvm::sys::path;
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TildeExpressionResolver::~TildeExpressionResolver() {}
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bool StandardTildeExpressionResolver::ResolveExact(
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StringRef Expr, SmallVectorImpl<char> &Output) {
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// We expect the tilde expression to be ONLY the expression itself, and
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// contain no separators.
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assert(!llvm::any_of(Expr, [](char c) { return path::is_separator(c); }));
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assert(Expr.empty() || Expr[0] == '~');
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return !fs::real_path(Expr, Output, true);
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}
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bool StandardTildeExpressionResolver::ResolvePartial(StringRef Expr,
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StringSet<> &Output) {
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// We expect the tilde expression to be ONLY the expression itself, and
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// contain no separators.
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assert(!llvm::any_of(Expr, [](char c) { return path::is_separator(c); }));
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assert(Expr.empty() || Expr[0] == '~');
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Output.clear();
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#if defined(_WIN32) || defined(__ANDROID__)
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return false;
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#else
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if (Expr.empty())
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return false;
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SmallString<32> Buffer("~");
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setpwent();
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struct passwd *user_entry;
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Expr = Expr.drop_front();
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while ((user_entry = getpwent()) != NULL) {
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StringRef ThisName(user_entry->pw_name);
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if (!ThisName.startswith(Expr))
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continue;
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Buffer.resize(1);
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Buffer.append(ThisName);
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Buffer.append(path::get_separator());
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Output.insert(Buffer);
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}
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return true;
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#endif
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}
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bool TildeExpressionResolver::ResolveFullPath(
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StringRef Expr, llvm::SmallVectorImpl<char> &Output) {
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Output.clear();
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if (!Expr.startswith("~")) {
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Output.append(Expr.begin(), Expr.end());
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return false;
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}
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namespace path = llvm::sys::path;
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StringRef Left =
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Expr.take_until([](char c) { return path::is_separator(c); });
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if (!ResolveExact(Left, Output))
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return false;
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Output.append(Expr.begin() + Left.size(), Expr.end());
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return true;
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}
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