a537f6ce37
the resolved version of the rhs FileSpec's directory name with the lhs FileSpec's directory name. We really meant to compare it with the rhs FileSpec's directory name... <rdar://problem/12438838> llvm-svn: 167349
1027 lines
32 KiB
C++
1027 lines
32 KiB
C++
//===-- FileSpec.cpp --------------------------------------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
|
|
#include <dirent.h>
|
|
#include <fcntl.h>
|
|
#include <libgen.h>
|
|
#include <sys/stat.h>
|
|
#include <string.h>
|
|
#include <fstream>
|
|
|
|
#include "lldb/Host/Config.h" // Have to include this before we test the define...
|
|
#ifdef LLDB_CONFIG_TILDE_RESOLVES_TO_USER
|
|
#include <pwd.h>
|
|
#endif
|
|
|
|
#include "llvm/ADT/StringRef.h"
|
|
#include "llvm/Support/Path.h"
|
|
#include "llvm/Support/Program.h"
|
|
|
|
#include "lldb/Host/File.h"
|
|
#include "lldb/Host/FileSpec.h"
|
|
#include "lldb/Core/DataBufferHeap.h"
|
|
#include "lldb/Core/DataBufferMemoryMap.h"
|
|
#include "lldb/Core/RegularExpression.h"
|
|
#include "lldb/Core/Stream.h"
|
|
#include "lldb/Host/Host.h"
|
|
#include "lldb/Utility/CleanUp.h"
|
|
|
|
using namespace lldb;
|
|
using namespace lldb_private;
|
|
using namespace std;
|
|
|
|
static bool
|
|
GetFileStats (const FileSpec *file_spec, struct stat *stats_ptr)
|
|
{
|
|
char resolved_path[PATH_MAX];
|
|
if (file_spec->GetPath (resolved_path, sizeof(resolved_path)))
|
|
return ::stat (resolved_path, stats_ptr) == 0;
|
|
return false;
|
|
}
|
|
|
|
#ifdef LLDB_CONFIG_TILDE_RESOLVES_TO_USER
|
|
|
|
static const char*
|
|
GetCachedGlobTildeSlash()
|
|
{
|
|
static std::string g_tilde;
|
|
if (g_tilde.empty())
|
|
{
|
|
struct passwd *user_entry;
|
|
user_entry = getpwuid(geteuid());
|
|
if (user_entry != NULL)
|
|
g_tilde = user_entry->pw_dir;
|
|
|
|
if (g_tilde.empty())
|
|
return NULL;
|
|
}
|
|
return g_tilde.c_str();
|
|
}
|
|
|
|
#endif // #ifdef LLDB_CONFIG_TILDE_RESOLVES_TO_USER
|
|
|
|
// Resolves the username part of a path of the form ~user/other/directories, and
|
|
// writes the result into dst_path.
|
|
// Returns 0 if there WAS a ~ in the path but the username couldn't be resolved.
|
|
// Otherwise returns the number of characters copied into dst_path. If the return
|
|
// is >= dst_len, then the resolved path is too long...
|
|
size_t
|
|
FileSpec::ResolveUsername (const char *src_path, char *dst_path, size_t dst_len)
|
|
{
|
|
if (src_path == NULL || src_path[0] == '\0')
|
|
return 0;
|
|
|
|
#ifdef LLDB_CONFIG_TILDE_RESOLVES_TO_USER
|
|
|
|
char user_home[PATH_MAX];
|
|
const char *user_name;
|
|
|
|
|
|
// If there's no ~, then just copy src_path straight to dst_path (they may be the same string...)
|
|
if (src_path[0] != '~')
|
|
{
|
|
size_t len = strlen (src_path);
|
|
if (len >= dst_len)
|
|
{
|
|
::bcopy (src_path, dst_path, dst_len - 1);
|
|
dst_path[dst_len] = '\0';
|
|
}
|
|
else
|
|
::bcopy (src_path, dst_path, len + 1);
|
|
|
|
return len;
|
|
}
|
|
|
|
const char *first_slash = ::strchr (src_path, '/');
|
|
char remainder[PATH_MAX];
|
|
|
|
if (first_slash == NULL)
|
|
{
|
|
// The whole name is the username (minus the ~):
|
|
user_name = src_path + 1;
|
|
remainder[0] = '\0';
|
|
}
|
|
else
|
|
{
|
|
int user_name_len = first_slash - src_path - 1;
|
|
::memcpy (user_home, src_path + 1, user_name_len);
|
|
user_home[user_name_len] = '\0';
|
|
user_name = user_home;
|
|
|
|
::strcpy (remainder, first_slash);
|
|
}
|
|
|
|
if (user_name == NULL)
|
|
return 0;
|
|
// User name of "" means the current user...
|
|
|
|
struct passwd *user_entry;
|
|
const char *home_dir = NULL;
|
|
|
|
if (user_name[0] == '\0')
|
|
{
|
|
home_dir = GetCachedGlobTildeSlash();
|
|
}
|
|
else
|
|
{
|
|
user_entry = ::getpwnam (user_name);
|
|
if (user_entry != NULL)
|
|
home_dir = user_entry->pw_dir;
|
|
}
|
|
|
|
if (home_dir == NULL)
|
|
return 0;
|
|
else
|
|
return ::snprintf (dst_path, dst_len, "%s%s", home_dir, remainder);
|
|
#else
|
|
// Resolving home directories is not supported, just copy the path...
|
|
return ::snprintf (dst_path, dst_len, "%s", src_path);
|
|
#endif // #ifdef LLDB_CONFIG_TILDE_RESOLVES_TO_USER
|
|
}
|
|
|
|
size_t
|
|
FileSpec::ResolvePartialUsername (const char *partial_name, StringList &matches)
|
|
{
|
|
#ifdef LLDB_CONFIG_TILDE_RESOLVES_TO_USER
|
|
size_t extant_entries = matches.GetSize();
|
|
|
|
setpwent();
|
|
struct passwd *user_entry;
|
|
const char *name_start = partial_name + 1;
|
|
std::set<std::string> name_list;
|
|
|
|
while ((user_entry = getpwent()) != NULL)
|
|
{
|
|
if (strstr(user_entry->pw_name, name_start) == user_entry->pw_name)
|
|
{
|
|
std::string tmp_buf("~");
|
|
tmp_buf.append(user_entry->pw_name);
|
|
tmp_buf.push_back('/');
|
|
name_list.insert(tmp_buf);
|
|
}
|
|
}
|
|
std::set<std::string>::iterator pos, end = name_list.end();
|
|
for (pos = name_list.begin(); pos != end; pos++)
|
|
{
|
|
matches.AppendString((*pos).c_str());
|
|
}
|
|
return matches.GetSize() - extant_entries;
|
|
#else
|
|
// Resolving home directories is not supported, just copy the path...
|
|
return 0;
|
|
#endif // #ifdef LLDB_CONFIG_TILDE_RESOLVES_TO_USER
|
|
}
|
|
|
|
|
|
|
|
size_t
|
|
FileSpec::Resolve (const char *src_path, char *dst_path, size_t dst_len)
|
|
{
|
|
if (src_path == NULL || src_path[0] == '\0')
|
|
return 0;
|
|
|
|
// Glob if needed for ~/, otherwise copy in case src_path is same as dst_path...
|
|
char unglobbed_path[PATH_MAX];
|
|
#ifdef LLDB_CONFIG_TILDE_RESOLVES_TO_USER
|
|
if (src_path[0] == '~')
|
|
{
|
|
size_t return_count = ResolveUsername(src_path, unglobbed_path, sizeof(unglobbed_path));
|
|
|
|
// If we couldn't find the user referred to, or the resultant path was too long,
|
|
// then just copy over the src_path.
|
|
if (return_count == 0 || return_count >= sizeof(unglobbed_path))
|
|
::snprintf (unglobbed_path, sizeof(unglobbed_path), "%s", src_path);
|
|
}
|
|
else
|
|
#endif // #ifdef LLDB_CONFIG_TILDE_RESOLVES_TO_USER
|
|
{
|
|
::snprintf(unglobbed_path, sizeof(unglobbed_path), "%s", src_path);
|
|
}
|
|
|
|
// Now resolve the path if needed
|
|
char resolved_path[PATH_MAX];
|
|
if (::realpath (unglobbed_path, resolved_path))
|
|
{
|
|
// Success, copy the resolved path
|
|
return ::snprintf(dst_path, dst_len, "%s", resolved_path);
|
|
}
|
|
else
|
|
{
|
|
// Failed, just copy the unglobbed path
|
|
return ::snprintf(dst_path, dst_len, "%s", unglobbed_path);
|
|
}
|
|
}
|
|
|
|
FileSpec::FileSpec() :
|
|
m_directory(),
|
|
m_filename()
|
|
{
|
|
}
|
|
|
|
//------------------------------------------------------------------
|
|
// Default constructor that can take an optional full path to a
|
|
// file on disk.
|
|
//------------------------------------------------------------------
|
|
FileSpec::FileSpec(const char *pathname, bool resolve_path) :
|
|
m_directory(),
|
|
m_filename(),
|
|
m_is_resolved(false)
|
|
{
|
|
if (pathname && pathname[0])
|
|
SetFile(pathname, resolve_path);
|
|
}
|
|
|
|
//------------------------------------------------------------------
|
|
// Copy constructor
|
|
//------------------------------------------------------------------
|
|
FileSpec::FileSpec(const FileSpec& rhs) :
|
|
m_directory (rhs.m_directory),
|
|
m_filename (rhs.m_filename),
|
|
m_is_resolved (rhs.m_is_resolved)
|
|
{
|
|
}
|
|
|
|
//------------------------------------------------------------------
|
|
// Copy constructor
|
|
//------------------------------------------------------------------
|
|
FileSpec::FileSpec(const FileSpec* rhs) :
|
|
m_directory(),
|
|
m_filename()
|
|
{
|
|
if (rhs)
|
|
*this = *rhs;
|
|
}
|
|
|
|
//------------------------------------------------------------------
|
|
// Virtual destrcuctor in case anyone inherits from this class.
|
|
//------------------------------------------------------------------
|
|
FileSpec::~FileSpec()
|
|
{
|
|
}
|
|
|
|
//------------------------------------------------------------------
|
|
// Assignment operator.
|
|
//------------------------------------------------------------------
|
|
const FileSpec&
|
|
FileSpec::operator= (const FileSpec& rhs)
|
|
{
|
|
if (this != &rhs)
|
|
{
|
|
m_directory = rhs.m_directory;
|
|
m_filename = rhs.m_filename;
|
|
m_is_resolved = rhs.m_is_resolved;
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
//------------------------------------------------------------------
|
|
// Update the contents of this object with a new path. The path will
|
|
// be split up into a directory and filename and stored as uniqued
|
|
// string values for quick comparison and efficient memory usage.
|
|
//------------------------------------------------------------------
|
|
void
|
|
FileSpec::SetFile (const char *pathname, bool resolve)
|
|
{
|
|
m_filename.Clear();
|
|
m_directory.Clear();
|
|
m_is_resolved = false;
|
|
if (pathname == NULL || pathname[0] == '\0')
|
|
return;
|
|
|
|
char resolved_path[PATH_MAX];
|
|
bool path_fit = true;
|
|
|
|
if (resolve)
|
|
{
|
|
path_fit = (FileSpec::Resolve (pathname, resolved_path, sizeof(resolved_path)) < sizeof(resolved_path) - 1);
|
|
m_is_resolved = path_fit;
|
|
}
|
|
else
|
|
{
|
|
// Copy the path because "basename" and "dirname" want to muck with the
|
|
// path buffer
|
|
if (::strlen (pathname) > sizeof(resolved_path) - 1)
|
|
path_fit = false;
|
|
else
|
|
::strcpy (resolved_path, pathname);
|
|
}
|
|
|
|
|
|
if (path_fit)
|
|
{
|
|
char *filename = ::basename (resolved_path);
|
|
if (filename)
|
|
{
|
|
m_filename.SetCString (filename);
|
|
// Truncate the basename off the end of the resolved path
|
|
|
|
// Only attempt to get the dirname if it looks like we have a path
|
|
if (strchr(resolved_path, '/'))
|
|
{
|
|
char *directory = ::dirname (resolved_path);
|
|
|
|
// Make sure we didn't get our directory resolved to "." without having
|
|
// specified
|
|
if (directory)
|
|
m_directory.SetCString(directory);
|
|
else
|
|
{
|
|
char *last_resolved_path_slash = strrchr(resolved_path, '/');
|
|
if (last_resolved_path_slash)
|
|
{
|
|
*last_resolved_path_slash = '\0';
|
|
m_directory.SetCString(resolved_path);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
m_directory.SetCString(resolved_path);
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
// Convert to pointer operator. This allows code to check any FileSpec
|
|
// objects to see if they contain anything valid using code such as:
|
|
//
|
|
// if (file_spec)
|
|
// {}
|
|
//----------------------------------------------------------------------
|
|
FileSpec::operator bool() const
|
|
{
|
|
return m_filename || m_directory;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
// Logical NOT operator. This allows code to check any FileSpec
|
|
// objects to see if they are invalid using code such as:
|
|
//
|
|
// if (!file_spec)
|
|
// {}
|
|
//----------------------------------------------------------------------
|
|
bool
|
|
FileSpec::operator!() const
|
|
{
|
|
return !m_directory && !m_filename;
|
|
}
|
|
|
|
//------------------------------------------------------------------
|
|
// Equal to operator
|
|
//------------------------------------------------------------------
|
|
bool
|
|
FileSpec::operator== (const FileSpec& rhs) const
|
|
{
|
|
if (m_filename == rhs.m_filename)
|
|
{
|
|
if (m_directory == rhs.m_directory)
|
|
return true;
|
|
|
|
// TODO: determine if we want to keep this code in here.
|
|
// The code below was added to handle a case where we were
|
|
// trying to set a file and line breakpoint and one path
|
|
// was resolved, and the other not and the directory was
|
|
// in a mount point that resolved to a more complete path:
|
|
// "/tmp/a.c" == "/private/tmp/a.c". I might end up pulling
|
|
// this out...
|
|
if (IsResolved() && rhs.IsResolved())
|
|
{
|
|
// Both paths are resolved, no need to look further...
|
|
return false;
|
|
}
|
|
|
|
FileSpec resolved_lhs(*this);
|
|
|
|
// If "this" isn't resolved, resolve it
|
|
if (!IsResolved())
|
|
{
|
|
if (resolved_lhs.ResolvePath())
|
|
{
|
|
// This path wasn't resolved but now it is. Check if the resolved
|
|
// directory is the same as our unresolved directory, and if so,
|
|
// we can mark this object as resolved to avoid more future resolves
|
|
m_is_resolved = (m_directory == resolved_lhs.m_directory);
|
|
}
|
|
else
|
|
return false;
|
|
}
|
|
|
|
FileSpec resolved_rhs(rhs);
|
|
if (!rhs.IsResolved())
|
|
{
|
|
if (resolved_rhs.ResolvePath())
|
|
{
|
|
// rhs's path wasn't resolved but now it is. Check if the resolved
|
|
// directory is the same as rhs's unresolved directory, and if so,
|
|
// we can mark this object as resolved to avoid more future resolves
|
|
rhs.m_is_resolved = (rhs.m_directory == resolved_rhs.m_directory);
|
|
}
|
|
else
|
|
return false;
|
|
}
|
|
|
|
// If we reach this point in the code we were able to resolve both paths
|
|
// and since we only resolve the paths if the basenames are equal, then
|
|
// we can just check if both directories are equal...
|
|
return resolved_lhs.GetDirectory() == resolved_rhs.GetDirectory();
|
|
}
|
|
return false;
|
|
}
|
|
|
|
//------------------------------------------------------------------
|
|
// Not equal to operator
|
|
//------------------------------------------------------------------
|
|
bool
|
|
FileSpec::operator!= (const FileSpec& rhs) const
|
|
{
|
|
return !(*this == rhs);
|
|
}
|
|
|
|
//------------------------------------------------------------------
|
|
// Less than operator
|
|
//------------------------------------------------------------------
|
|
bool
|
|
FileSpec::operator< (const FileSpec& rhs) const
|
|
{
|
|
return FileSpec::Compare(*this, rhs, true) < 0;
|
|
}
|
|
|
|
//------------------------------------------------------------------
|
|
// Dump a FileSpec object to a stream
|
|
//------------------------------------------------------------------
|
|
Stream&
|
|
lldb_private::operator << (Stream &s, const FileSpec& f)
|
|
{
|
|
f.Dump(&s);
|
|
return s;
|
|
}
|
|
|
|
//------------------------------------------------------------------
|
|
// Clear this object by releasing both the directory and filename
|
|
// string values and making them both the empty string.
|
|
//------------------------------------------------------------------
|
|
void
|
|
FileSpec::Clear()
|
|
{
|
|
m_directory.Clear();
|
|
m_filename.Clear();
|
|
}
|
|
|
|
//------------------------------------------------------------------
|
|
// Compare two FileSpec objects. If "full" is true, then both
|
|
// the directory and the filename must match. If "full" is false,
|
|
// then the directory names for "a" and "b" are only compared if
|
|
// they are both non-empty. This allows a FileSpec object to only
|
|
// contain a filename and it can match FileSpec objects that have
|
|
// matching filenames with different paths.
|
|
//
|
|
// Return -1 if the "a" is less than "b", 0 if "a" is equal to "b"
|
|
// and "1" if "a" is greater than "b".
|
|
//------------------------------------------------------------------
|
|
int
|
|
FileSpec::Compare(const FileSpec& a, const FileSpec& b, bool full)
|
|
{
|
|
int result = 0;
|
|
|
|
// If full is true, then we must compare both the directory and filename.
|
|
|
|
// If full is false, then if either directory is empty, then we match on
|
|
// the basename only, and if both directories have valid values, we still
|
|
// do a full compare. This allows for matching when we just have a filename
|
|
// in one of the FileSpec objects.
|
|
|
|
if (full || (a.m_directory && b.m_directory))
|
|
{
|
|
result = ConstString::Compare(a.m_directory, b.m_directory);
|
|
if (result)
|
|
return result;
|
|
}
|
|
return ConstString::Compare (a.m_filename, b.m_filename);
|
|
}
|
|
|
|
bool
|
|
FileSpec::Equal (const FileSpec& a, const FileSpec& b, bool full)
|
|
{
|
|
if (!full && (a.GetDirectory().IsEmpty() || b.GetDirectory().IsEmpty()))
|
|
return a.m_filename == b.m_filename;
|
|
else
|
|
return a == b;
|
|
}
|
|
|
|
|
|
|
|
//------------------------------------------------------------------
|
|
// Dump the object to the supplied stream. If the object contains
|
|
// a valid directory name, it will be displayed followed by a
|
|
// directory delimiter, and the filename.
|
|
//------------------------------------------------------------------
|
|
void
|
|
FileSpec::Dump(Stream *s) const
|
|
{
|
|
if (s)
|
|
{
|
|
m_directory.Dump(s);
|
|
if (m_directory)
|
|
s->PutChar('/');
|
|
m_filename.Dump(s);
|
|
}
|
|
}
|
|
|
|
//------------------------------------------------------------------
|
|
// Returns true if the file exists.
|
|
//------------------------------------------------------------------
|
|
bool
|
|
FileSpec::Exists () const
|
|
{
|
|
struct stat file_stats;
|
|
return GetFileStats (this, &file_stats);
|
|
}
|
|
|
|
bool
|
|
FileSpec::ResolveExecutableLocation ()
|
|
{
|
|
if (!m_directory)
|
|
{
|
|
const char *file_cstr = m_filename.GetCString();
|
|
if (file_cstr)
|
|
{
|
|
const std::string file_str (file_cstr);
|
|
llvm::sys::Path path = llvm::sys::Program::FindProgramByName (file_str);
|
|
const std::string &path_str = path.str();
|
|
llvm::StringRef dir_ref = llvm::sys::path::parent_path(path_str);
|
|
//llvm::StringRef dir_ref = path.getDirname();
|
|
if (! dir_ref.empty())
|
|
{
|
|
// FindProgramByName returns "." if it can't find the file.
|
|
if (strcmp (".", dir_ref.data()) == 0)
|
|
return false;
|
|
|
|
m_directory.SetCString (dir_ref.data());
|
|
if (Exists())
|
|
return true;
|
|
else
|
|
{
|
|
// If FindProgramByName found the file, it returns the directory + filename in its return results.
|
|
// We need to separate them.
|
|
FileSpec tmp_file (dir_ref.data(), false);
|
|
if (tmp_file.Exists())
|
|
{
|
|
m_directory = tmp_file.m_directory;
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
FileSpec::ResolvePath ()
|
|
{
|
|
if (m_is_resolved)
|
|
return true; // We have already resolved this path
|
|
|
|
char path_buf[PATH_MAX];
|
|
if (!GetPath (path_buf, PATH_MAX))
|
|
return false;
|
|
// SetFile(...) will set m_is_resolved correctly if it can resolve the path
|
|
SetFile (path_buf, true);
|
|
return m_is_resolved;
|
|
}
|
|
|
|
uint64_t
|
|
FileSpec::GetByteSize() const
|
|
{
|
|
struct stat file_stats;
|
|
if (GetFileStats (this, &file_stats))
|
|
return file_stats.st_size;
|
|
return 0;
|
|
}
|
|
|
|
FileSpec::FileType
|
|
FileSpec::GetFileType () const
|
|
{
|
|
struct stat file_stats;
|
|
if (GetFileStats (this, &file_stats))
|
|
{
|
|
mode_t file_type = file_stats.st_mode & S_IFMT;
|
|
switch (file_type)
|
|
{
|
|
case S_IFDIR: return eFileTypeDirectory;
|
|
case S_IFIFO: return eFileTypePipe;
|
|
case S_IFREG: return eFileTypeRegular;
|
|
case S_IFSOCK: return eFileTypeSocket;
|
|
case S_IFLNK: return eFileTypeSymbolicLink;
|
|
default:
|
|
break;
|
|
}
|
|
return eFileTypeUnknown;
|
|
}
|
|
return eFileTypeInvalid;
|
|
}
|
|
|
|
TimeValue
|
|
FileSpec::GetModificationTime () const
|
|
{
|
|
TimeValue mod_time;
|
|
struct stat file_stats;
|
|
if (GetFileStats (this, &file_stats))
|
|
mod_time.OffsetWithSeconds(file_stats.st_mtime);
|
|
return mod_time;
|
|
}
|
|
|
|
//------------------------------------------------------------------
|
|
// Directory string get accessor.
|
|
//------------------------------------------------------------------
|
|
ConstString &
|
|
FileSpec::GetDirectory()
|
|
{
|
|
return m_directory;
|
|
}
|
|
|
|
//------------------------------------------------------------------
|
|
// Directory string const get accessor.
|
|
//------------------------------------------------------------------
|
|
const ConstString &
|
|
FileSpec::GetDirectory() const
|
|
{
|
|
return m_directory;
|
|
}
|
|
|
|
//------------------------------------------------------------------
|
|
// Filename string get accessor.
|
|
//------------------------------------------------------------------
|
|
ConstString &
|
|
FileSpec::GetFilename()
|
|
{
|
|
return m_filename;
|
|
}
|
|
|
|
//------------------------------------------------------------------
|
|
// Filename string const get accessor.
|
|
//------------------------------------------------------------------
|
|
const ConstString &
|
|
FileSpec::GetFilename() const
|
|
{
|
|
return m_filename;
|
|
}
|
|
|
|
//------------------------------------------------------------------
|
|
// Extract the directory and path into a fixed buffer. This is
|
|
// needed as the directory and path are stored in separate string
|
|
// values.
|
|
//------------------------------------------------------------------
|
|
size_t
|
|
FileSpec::GetPath(char *path, size_t path_max_len) const
|
|
{
|
|
if (path_max_len)
|
|
{
|
|
const char *dirname = m_directory.GetCString();
|
|
const char *filename = m_filename.GetCString();
|
|
if (dirname)
|
|
{
|
|
if (filename)
|
|
return ::snprintf (path, path_max_len, "%s/%s", dirname, filename);
|
|
else
|
|
return ::snprintf (path, path_max_len, "%s", dirname);
|
|
}
|
|
else if (filename)
|
|
{
|
|
return ::snprintf (path, path_max_len, "%s", filename);
|
|
}
|
|
}
|
|
if (path)
|
|
path[0] = '\0';
|
|
return 0;
|
|
}
|
|
|
|
ConstString
|
|
FileSpec::GetFileNameExtension () const
|
|
{
|
|
if (m_filename)
|
|
{
|
|
const char *filename = m_filename.GetCString();
|
|
const char* dot_pos = strrchr(filename, '.');
|
|
if (dot_pos && dot_pos[1] != '\0')
|
|
return ConstString(dot_pos+1);
|
|
}
|
|
return ConstString();
|
|
}
|
|
|
|
ConstString
|
|
FileSpec::GetFileNameStrippingExtension () const
|
|
{
|
|
const char *filename = m_filename.GetCString();
|
|
if (filename == NULL)
|
|
return ConstString();
|
|
|
|
const char* dot_pos = strrchr(filename, '.');
|
|
if (dot_pos == NULL)
|
|
return m_filename;
|
|
|
|
return ConstString(filename, dot_pos-filename);
|
|
}
|
|
|
|
//------------------------------------------------------------------
|
|
// Returns a shared pointer to a data buffer that contains all or
|
|
// part of the contents of a file. The data is memory mapped and
|
|
// will lazily page in data from the file as memory is accessed.
|
|
// The data that is mappped will start "file_offset" bytes into the
|
|
// file, and "file_size" bytes will be mapped. If "file_size" is
|
|
// greater than the number of bytes available in the file starting
|
|
// at "file_offset", the number of bytes will be appropriately
|
|
// truncated. The final number of bytes that get mapped can be
|
|
// verified using the DataBuffer::GetByteSize() function.
|
|
//------------------------------------------------------------------
|
|
DataBufferSP
|
|
FileSpec::MemoryMapFileContents(off_t file_offset, size_t file_size) const
|
|
{
|
|
DataBufferSP data_sp;
|
|
auto_ptr<DataBufferMemoryMap> mmap_data(new DataBufferMemoryMap());
|
|
if (mmap_data.get())
|
|
{
|
|
if (mmap_data->MemoryMapFromFileSpec (this, file_offset, file_size) >= file_size)
|
|
data_sp.reset(mmap_data.release());
|
|
}
|
|
return data_sp;
|
|
}
|
|
|
|
|
|
//------------------------------------------------------------------
|
|
// Return the size in bytes that this object takes in memory. This
|
|
// returns the size in bytes of this object, not any shared string
|
|
// values it may refer to.
|
|
//------------------------------------------------------------------
|
|
size_t
|
|
FileSpec::MemorySize() const
|
|
{
|
|
return m_filename.MemorySize() + m_directory.MemorySize();
|
|
}
|
|
|
|
|
|
size_t
|
|
FileSpec::ReadFileContents (off_t file_offset, void *dst, size_t dst_len, Error *error_ptr) const
|
|
{
|
|
Error error;
|
|
size_t bytes_read = 0;
|
|
char resolved_path[PATH_MAX];
|
|
if (GetPath(resolved_path, sizeof(resolved_path)))
|
|
{
|
|
File file;
|
|
error = file.Open(resolved_path, File::eOpenOptionRead);
|
|
if (error.Success())
|
|
{
|
|
off_t file_offset_after_seek = file_offset;
|
|
bytes_read = dst_len;
|
|
error = file.Read(dst, bytes_read, file_offset_after_seek);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
error.SetErrorString("invalid file specification");
|
|
}
|
|
if (error_ptr)
|
|
*error_ptr = error;
|
|
return bytes_read;
|
|
}
|
|
|
|
//------------------------------------------------------------------
|
|
// Returns a shared pointer to a data buffer that contains all or
|
|
// part of the contents of a file. The data copies into a heap based
|
|
// buffer that lives in the DataBuffer shared pointer object returned.
|
|
// The data that is cached will start "file_offset" bytes into the
|
|
// file, and "file_size" bytes will be mapped. If "file_size" is
|
|
// greater than the number of bytes available in the file starting
|
|
// at "file_offset", the number of bytes will be appropriately
|
|
// truncated. The final number of bytes that get mapped can be
|
|
// verified using the DataBuffer::GetByteSize() function.
|
|
//------------------------------------------------------------------
|
|
DataBufferSP
|
|
FileSpec::ReadFileContents (off_t file_offset, size_t file_size, Error *error_ptr) const
|
|
{
|
|
Error error;
|
|
DataBufferSP data_sp;
|
|
char resolved_path[PATH_MAX];
|
|
if (GetPath(resolved_path, sizeof(resolved_path)))
|
|
{
|
|
File file;
|
|
error = file.Open(resolved_path, File::eOpenOptionRead);
|
|
if (error.Success())
|
|
{
|
|
const bool null_terminate = false;
|
|
error = file.Read (file_size, file_offset, null_terminate, data_sp);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
error.SetErrorString("invalid file specification");
|
|
}
|
|
if (error_ptr)
|
|
*error_ptr = error;
|
|
return data_sp;
|
|
}
|
|
|
|
DataBufferSP
|
|
FileSpec::ReadFileContentsAsCString(Error *error_ptr)
|
|
{
|
|
Error error;
|
|
DataBufferSP data_sp;
|
|
char resolved_path[PATH_MAX];
|
|
if (GetPath(resolved_path, sizeof(resolved_path)))
|
|
{
|
|
File file;
|
|
error = file.Open(resolved_path, File::eOpenOptionRead);
|
|
if (error.Success())
|
|
{
|
|
off_t offset = 0;
|
|
size_t length = SIZE_MAX;
|
|
const bool null_terminate = true;
|
|
error = file.Read (length, offset, null_terminate, data_sp);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
error.SetErrorString("invalid file specification");
|
|
}
|
|
if (error_ptr)
|
|
*error_ptr = error;
|
|
return data_sp;
|
|
}
|
|
|
|
size_t
|
|
FileSpec::ReadFileLines (STLStringArray &lines)
|
|
{
|
|
lines.clear();
|
|
char path[PATH_MAX];
|
|
if (GetPath(path, sizeof(path)))
|
|
{
|
|
ifstream file_stream (path);
|
|
|
|
if (file_stream)
|
|
{
|
|
std::string line;
|
|
while (getline (file_stream, line))
|
|
lines.push_back (line);
|
|
}
|
|
}
|
|
return lines.size();
|
|
}
|
|
|
|
FileSpec::EnumerateDirectoryResult
|
|
FileSpec::EnumerateDirectory
|
|
(
|
|
const char *dir_path,
|
|
bool find_directories,
|
|
bool find_files,
|
|
bool find_other,
|
|
EnumerateDirectoryCallbackType callback,
|
|
void *callback_baton
|
|
)
|
|
{
|
|
if (dir_path && dir_path[0])
|
|
{
|
|
lldb_utility::CleanUp <DIR *, int> dir_path_dir (opendir(dir_path), NULL, closedir);
|
|
if (dir_path_dir.is_valid())
|
|
{
|
|
struct dirent* dp;
|
|
while ((dp = readdir(dir_path_dir.get())) != NULL)
|
|
{
|
|
// Only search directories
|
|
if (dp->d_type == DT_DIR || dp->d_type == DT_UNKNOWN)
|
|
{
|
|
size_t len = strlen(dp->d_name);
|
|
|
|
if (len == 1 && dp->d_name[0] == '.')
|
|
continue;
|
|
|
|
if (len == 2 && dp->d_name[0] == '.' && dp->d_name[1] == '.')
|
|
continue;
|
|
}
|
|
|
|
bool call_callback = false;
|
|
FileSpec::FileType file_type = eFileTypeUnknown;
|
|
|
|
switch (dp->d_type)
|
|
{
|
|
default:
|
|
case DT_UNKNOWN: file_type = eFileTypeUnknown; call_callback = true; break;
|
|
case DT_FIFO: file_type = eFileTypePipe; call_callback = find_other; break;
|
|
case DT_CHR: file_type = eFileTypeOther; call_callback = find_other; break;
|
|
case DT_DIR: file_type = eFileTypeDirectory; call_callback = find_directories; break;
|
|
case DT_BLK: file_type = eFileTypeOther; call_callback = find_other; break;
|
|
case DT_REG: file_type = eFileTypeRegular; call_callback = find_files; break;
|
|
case DT_LNK: file_type = eFileTypeSymbolicLink; call_callback = find_other; break;
|
|
case DT_SOCK: file_type = eFileTypeSocket; call_callback = find_other; break;
|
|
#if !defined(__OpenBSD__)
|
|
case DT_WHT: file_type = eFileTypeOther; call_callback = find_other; break;
|
|
#endif
|
|
}
|
|
|
|
if (call_callback)
|
|
{
|
|
char child_path[PATH_MAX];
|
|
const int child_path_len = ::snprintf (child_path, sizeof(child_path), "%s/%s", dir_path, dp->d_name);
|
|
if (child_path_len < (int)(sizeof(child_path) - 1))
|
|
{
|
|
// Don't resolve the file type or path
|
|
FileSpec child_path_spec (child_path, false);
|
|
|
|
EnumerateDirectoryResult result = callback (callback_baton, file_type, child_path_spec);
|
|
|
|
switch (result)
|
|
{
|
|
default:
|
|
case eEnumerateDirectoryResultNext:
|
|
// Enumerate next entry in the current directory. We just
|
|
// exit this switch and will continue enumerating the
|
|
// current directory as we currently are...
|
|
break;
|
|
|
|
case eEnumerateDirectoryResultEnter: // Recurse into the current entry if it is a directory or symlink, or next if not
|
|
if (FileSpec::EnumerateDirectory (child_path,
|
|
find_directories,
|
|
find_files,
|
|
find_other,
|
|
callback,
|
|
callback_baton) == eEnumerateDirectoryResultQuit)
|
|
{
|
|
// The subdirectory returned Quit, which means to
|
|
// stop all directory enumerations at all levels.
|
|
return eEnumerateDirectoryResultQuit;
|
|
}
|
|
break;
|
|
|
|
case eEnumerateDirectoryResultExit: // Exit from the current directory at the current level.
|
|
// Exit from this directory level and tell parent to
|
|
// keep enumerating.
|
|
return eEnumerateDirectoryResultNext;
|
|
|
|
case eEnumerateDirectoryResultQuit: // Stop directory enumerations at any level
|
|
return eEnumerateDirectoryResultQuit;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// By default when exiting a directory, we tell the parent enumeration
|
|
// to continue enumerating.
|
|
return eEnumerateDirectoryResultNext;
|
|
}
|
|
|
|
//------------------------------------------------------------------
|
|
/// Returns true if the filespec represents an implementation source
|
|
/// file (files with a ".c", ".cpp", ".m", ".mm" (many more)
|
|
/// extension).
|
|
///
|
|
/// @return
|
|
/// \b true if the filespec represents an implementation source
|
|
/// file, \b false otherwise.
|
|
//------------------------------------------------------------------
|
|
bool
|
|
FileSpec::IsSourceImplementationFile () const
|
|
{
|
|
ConstString extension (GetFileNameExtension());
|
|
if (extension)
|
|
{
|
|
static RegularExpression g_source_file_regex ("^(c|m|mm|cpp|c\\+\\+|cxx|cc|cp|s|asm|f|f77|f90|f95|f03|for|ftn|fpp|ada|adb|ads)$",
|
|
REG_EXTENDED | REG_ICASE);
|
|
return g_source_file_regex.Execute (extension.GetCString());
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
FileSpec::IsRelativeToCurrentWorkingDirectory () const
|
|
{
|
|
const char *directory = m_directory.GetCString();
|
|
if (directory && directory[0])
|
|
{
|
|
// If the path doesn't start with '/' or '~', return true
|
|
switch (directory[0])
|
|
{
|
|
case '/':
|
|
case '~':
|
|
return false;
|
|
default:
|
|
return true;
|
|
}
|
|
}
|
|
else if (m_filename)
|
|
{
|
|
// No directory, just a basename, return true
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|