270 lines
7.4 KiB
C++
270 lines
7.4 KiB
C++
/*
|
|
Copyright (c) 2013 Microsoft Corporation. All rights reserved.
|
|
Released under Apache 2.0 license as described in the file LICENSE.
|
|
|
|
Author: Leonardo de Moura
|
|
*/
|
|
#include <string>
|
|
#include <cstdlib>
|
|
#include <fstream>
|
|
#include <vector>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include "util/exception.h"
|
|
#include "util/sstream.h"
|
|
#include "util/name.h"
|
|
#include "util/optional.h"
|
|
|
|
#ifndef LEAN_DEFAULT_MODULE_FILE_NAME
|
|
#define LEAN_DEFAULT_MODULE_FILE_NAME "default"
|
|
#endif
|
|
|
|
namespace lean {
|
|
static std::string g_default_file_name(LEAN_DEFAULT_MODULE_FILE_NAME);
|
|
|
|
bool is_directory(char const * pathname) {
|
|
struct stat info;
|
|
if (stat(pathname, &info) != 0 )
|
|
return false; // failed to access pathname
|
|
return info.st_mode & S_IFDIR;
|
|
}
|
|
|
|
#if defined(LEAN_WINDOWS)
|
|
// Windows version
|
|
#include <windows.h>
|
|
static char g_path_sep = ';';
|
|
static char g_sep = '\\';
|
|
static char g_bad_sep = '/';
|
|
static std::string get_exe_location() {
|
|
HMODULE hModule = GetModuleHandleW(NULL);
|
|
WCHAR path[MAX_PATH];
|
|
GetModuleFileNameW(hModule, path, MAX_PATH);
|
|
std::wstring pathstr(path);
|
|
return std::string(pathstr.begin(), pathstr.end());
|
|
}
|
|
#elif defined(__APPLE__)
|
|
// OSX version
|
|
#include <mach-o/dyld.h>
|
|
#include <limits.h>
|
|
static char g_path_sep = ':';
|
|
static char g_sep = '/';
|
|
static char g_bad_sep = '\\';
|
|
static std::string get_exe_location() {
|
|
char buf[PATH_MAX];
|
|
uint32_t bufsize = PATH_MAX;
|
|
if (_NSGetExecutablePath(buf, &bufsize) != 0)
|
|
throw exception("failed to locate Lean executable location");
|
|
return std::string(buf);
|
|
}
|
|
#else
|
|
// Linux version
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
#include <limits.h> // NOLINT
|
|
#include <stdio.h>
|
|
static char g_path_sep = ':';
|
|
static char g_sep = '/';
|
|
static char g_bad_sep = '\\';
|
|
static std::string get_exe_location() {
|
|
char path[PATH_MAX];
|
|
char dest[PATH_MAX];
|
|
memset(dest, 0, PATH_MAX);
|
|
pid_t pid = getpid();
|
|
snprintf(path, PATH_MAX, "/proc/%d/exe", pid);
|
|
if (readlink(path, dest, PATH_MAX) == -1) {
|
|
throw exception("failed to locate Lean executable location");
|
|
} else {
|
|
return std::string(dest);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if defined(LEAN_CYGWIN)
|
|
/**
|
|
\brief Cleanup path when using cygwin.
|
|
This procedure performs two fixes, if the string contains '/'.
|
|
|
|
1- It replaces '/' with '\\' and ':' with ';'
|
|
|
|
2- Then, it replaces "\cygdrive\c\" with "c:"
|
|
*/
|
|
static std::string fix_cygwin_path(std::string f) {
|
|
if (f.find('/') != std::string::npos) {
|
|
// Step 1.
|
|
for (auto & c : f) {
|
|
if (c == g_bad_sep)
|
|
c = g_sep;
|
|
else if (c == ':')
|
|
c = g_path_sep;
|
|
}
|
|
// Step 2.
|
|
size_t pos = 0;
|
|
size_t matchpos;
|
|
std::string cygdrive("\\cygdrive\\");
|
|
while ((matchpos = f.find(cygdrive, pos)) != std::string::npos) {
|
|
// erase "\cygdrive\"
|
|
f = f.replace(matchpos, cygdrive.size(), "");
|
|
// replace the next "\" with ":\"
|
|
if ((matchpos = f.find("\\", matchpos)) != std::string::npos) {
|
|
f.replace(matchpos, 1, ":\\");
|
|
}
|
|
pos = matchpos;
|
|
}
|
|
}
|
|
return f;
|
|
}
|
|
|
|
/** \brief Convert back to a cygwin_path */
|
|
static std::string to_cygwin_path(std::string f) {
|
|
if (f.find('\\') != std::string::npos) {
|
|
if (f.size() > 2 && f[1] == ':') {
|
|
f = std::string("/cygdrive/") + f[0] + f.substr(2);
|
|
}
|
|
for (auto & c : f) {
|
|
if (c == g_sep)
|
|
c = g_bad_sep;
|
|
else if (c == ';')
|
|
c = ':';
|
|
}
|
|
}
|
|
return f;
|
|
}
|
|
#endif
|
|
|
|
std::string normalize_path(std::string f) {
|
|
#if defined(LEAN_CYGWIN)
|
|
f = fix_cygwin_path(f);
|
|
#else
|
|
for (auto & c : f) {
|
|
if (c == g_bad_sep)
|
|
c = g_sep;
|
|
}
|
|
#endif
|
|
return f;
|
|
}
|
|
|
|
std::string get_path(std::string f) {
|
|
while (true) {
|
|
if (f.empty())
|
|
throw exception("failed to locate Lean executable location");
|
|
if (f.back() == g_sep) {
|
|
f.pop_back();
|
|
return f;
|
|
}
|
|
f.pop_back();
|
|
}
|
|
}
|
|
|
|
static std::string g_lean_path;
|
|
static std::vector<std::string> g_lean_path_vector;
|
|
void init_lean_path(char const * kernel_instance_name) {
|
|
char * r = getenv("LEAN_PATH");
|
|
if (r == nullptr) {
|
|
g_lean_path = ".";
|
|
std::string exe_path = get_path(get_exe_location());
|
|
g_lean_path += g_path_sep;
|
|
g_lean_path += exe_path + g_sep + ".." + g_sep + "library" + g_sep + kernel_instance_name;
|
|
} else {
|
|
g_lean_path = r;
|
|
}
|
|
g_lean_path_vector.clear();
|
|
g_lean_path = normalize_path(g_lean_path);
|
|
unsigned i = 0;
|
|
unsigned j = 0;
|
|
unsigned sz = g_lean_path.size();
|
|
for (; j < sz; j++) {
|
|
if (g_lean_path[j] == g_path_sep) {
|
|
if (j > i)
|
|
g_lean_path_vector.push_back(g_lean_path.substr(i, j - i));
|
|
i = j + 1;
|
|
}
|
|
}
|
|
if (j > i)
|
|
g_lean_path_vector.push_back(g_lean_path.substr(i, j - i));
|
|
}
|
|
|
|
struct init_lean_path_fn {
|
|
init_lean_path_fn() { init_lean_path("standard"); }
|
|
};
|
|
static init_lean_path_fn g_init_lean_path_fn;
|
|
static std::string g_sep_str(1, g_sep);
|
|
|
|
bool has_file_ext(std::string const & fname, char const * ext) {
|
|
unsigned ext_len = strlen(ext);
|
|
return fname.size() > ext_len && fname.substr(fname.size() - ext_len, ext_len) == ext;
|
|
}
|
|
|
|
bool is_lean_file(std::string const & fname) {
|
|
return has_file_ext(fname, ".lean");
|
|
}
|
|
|
|
bool is_olean_file(std::string const & fname) {
|
|
return has_file_ext(fname, ".olean");
|
|
}
|
|
|
|
bool is_lua_file(std::string const & fname) {
|
|
return has_file_ext(fname, ".lua");
|
|
}
|
|
|
|
bool is_known_file_ext(std::string const & fname) {
|
|
return is_lean_file(fname) || is_olean_file(fname) || is_lua_file(fname);
|
|
}
|
|
|
|
optional<std::string> check_file(std::string const & path, std::string const & fname, char const * ext = nullptr) {
|
|
std::string file = path + g_sep + fname;
|
|
if (is_directory(file.c_str()))
|
|
file += g_sep + g_default_file_name;
|
|
if (ext)
|
|
file += ext;
|
|
std::ifstream ifile(file);
|
|
if (ifile)
|
|
return optional<std::string>(file);
|
|
else
|
|
return optional<std::string>();
|
|
}
|
|
|
|
std::string name_to_file(name const & fname) {
|
|
return fname.to_string(g_sep_str.c_str());
|
|
}
|
|
|
|
std::string find_file(std::string fname, std::initializer_list<char const *> const & extensions) {
|
|
bool is_known = is_known_file_ext(fname);
|
|
fname = normalize_path(fname);
|
|
for (auto path : g_lean_path_vector) {
|
|
if (is_known) {
|
|
if (auto r = check_file(path, fname))
|
|
return *r;
|
|
} else {
|
|
for (auto ext : extensions) {
|
|
if (auto r = check_file(path, fname, ext))
|
|
return *r;
|
|
}
|
|
}
|
|
}
|
|
throw exception(sstream() << "file '" << fname << "' not found in the LEAN_PATH");
|
|
}
|
|
|
|
std::string find_file(std::string fname) {
|
|
return find_file(fname, {".olean", ".lean", ".lua"});
|
|
}
|
|
|
|
std::string find_file(name const & fname) {
|
|
return find_file(fname.to_string(g_sep_str.c_str()));
|
|
}
|
|
|
|
std::string find_file(name const & fname, std::initializer_list<char const *> const & exts) {
|
|
return find_file(fname.to_string(g_sep_str.c_str()), exts);
|
|
}
|
|
|
|
char const * get_lean_path() {
|
|
return g_lean_path.c_str();
|
|
}
|
|
|
|
void display_path(std::ostream & out, std::string const & fname) {
|
|
#if defined(LEAN_CYGWIN)
|
|
out << to_cygwin_path(fname);
|
|
#else
|
|
out << fname;
|
|
#endif
|
|
}
|
|
}
|