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#include "Version.hpp"
#include <boost/algorithm/string/predicate.hpp>
#include <boost/algorithm/string/trim.hpp>
#include <boost/nowide/fstream.hpp>
#include "../../libslic3r/libslic3r.h"
#include "../../libslic3r/Config.hpp"
#include "../../libslic3r/FileParserError.hpp"
#include "../../libslic3r/Utils.hpp"
namespace Slic3r {
namespace GUI {
namespace Config {
static const Semver s_current_slic3r_semver(SLIC3R_VERSION);
// Optimized lexicographic compare of two pre-release versions, ignoring the numeric suffix.
static int compare_prerelease(const char *p1, const char *p2)
{
for (;;) {
char c1 = *p1 ++;
char c2 = *p2 ++;
bool a1 = std::isalpha(c1) && c1 != 0;
bool a2 = std::isalpha(c2) && c2 != 0;
if (a1) {
if (a2) {
if (c1 != c2)
return (c1 < c2) ? -1 : 1;
} else
return 1;
} else {
if (a2)
return -1;
else
return 0;
}
}
// This shall never happen.
return 0;
}
bool Version::is_slic3r_supported(const Semver &slic3r_version) const
{
if (! slic3r_version.in_range(min_slic3r_version, max_slic3r_version))
return false;
// Now verify, whether the configuration pre-release status is compatible with the Slic3r's pre-release status.
// Alpha Slic3r will happily load any configuration, while beta Slic3r will ignore alpha configurations etc.
const char *prerelease_slic3r = slic3r_version.prerelease();
const char *prerelease_config = this->config_version.prerelease();
if (prerelease_config == nullptr)
// Released config is always supported.
return true;
else if (prerelease_slic3r == nullptr)
// Released slic3r only supports released configs.
return false;
// Compare the pre-release status of Slic3r against the config.
// If the prerelease status of slic3r is lexicographically lower or equal
// to the prerelease status of the config, accept it.
return compare_prerelease(prerelease_slic3r, prerelease_config) != 1;
}
bool Version::is_current_slic3r_supported() const
{
return this->is_slic3r_supported(s_current_slic3r_semver);
}
#if 0
//TODO: This test should be moved to a unit test, once we have C++ unit tests in place.
static int version_test()
{
Version v;
v.config_version = *Semver::parse("1.1.2");
v.min_slic3r_version = *Semver::parse("1.38.0");
v.max_slic3r_version = Semver::inf();
assert(v.is_slic3r_supported(*Semver::parse("1.38.0")));
assert(! v.is_slic3r_supported(*Semver::parse("1.38.0-alpha")));
assert(! v.is_slic3r_supported(*Semver::parse("1.37.0-alpha")));
// Test the prerelease status.
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-alpha")));
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-alpha1")));
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-alpha1")));
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-beta")));
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-beta1")));
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-beta1")));
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-rc2")));
assert(v.is_slic3r_supported(*Semver::parse("1.39.0")));
v.config_version = *Semver::parse("1.1.2-alpha");
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-alpha")));
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-alpha1")));
assert(! v.is_slic3r_supported(*Semver::parse("1.39.0-beta")));
assert(! v.is_slic3r_supported(*Semver::parse("1.39.0-beta1")));
assert(! v.is_slic3r_supported(*Semver::parse("1.39.0-beta1")));
assert(! v.is_slic3r_supported(*Semver::parse("1.39.0-rc2")));
assert(! v.is_slic3r_supported(*Semver::parse("1.39.0")));
v.config_version = *Semver::parse("1.1.2-alpha1");
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-alpha")));
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-alpha1")));
assert(! v.is_slic3r_supported(*Semver::parse("1.39.0-beta")));
assert(! v.is_slic3r_supported(*Semver::parse("1.39.0-beta1")));
assert(! v.is_slic3r_supported(*Semver::parse("1.39.0-beta1")));
assert(! v.is_slic3r_supported(*Semver::parse("1.39.0-rc2")));
assert(! v.is_slic3r_supported(*Semver::parse("1.39.0")));
v.config_version = *Semver::parse("1.1.2-beta");
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-alpha")));
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-alpha1")));
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-beta")));
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-beta1")));
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-beta1")));
assert(! v.is_slic3r_supported(*Semver::parse("1.39.0-rc")));
assert(! v.is_slic3r_supported(*Semver::parse("1.39.0-rc2")));
assert(! v.is_slic3r_supported(*Semver::parse("1.39.0")));
v.config_version = *Semver::parse("1.1.2-rc");
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-alpha")));
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-alpha1")));
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-beta")));
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-beta1")));
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-beta1")));
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-rc")));
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-rc2")));
assert(! v.is_slic3r_supported(*Semver::parse("1.39.0")));
v.config_version = *Semver::parse("1.1.2-rc2");
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-alpha")));
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-alpha1")));
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-beta")));
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-beta1")));
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-beta1")));
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-rc")));
assert(v.is_slic3r_supported(*Semver::parse("1.39.0-rc2")));
assert(! v.is_slic3r_supported(*Semver::parse("1.39.0")));
// Test the upper boundary.
v.config_version = *Semver::parse("1.1.2");
v.max_slic3r_version = *Semver::parse("1.39.3-beta1");
assert(v.is_slic3r_supported(*Semver::parse("1.38.0")));
assert(! v.is_slic3r_supported(*Semver::parse("1.38.0-alpha")));
assert(! v.is_slic3r_supported(*Semver::parse("1.38.0-alpha1")));
assert(! v.is_slic3r_supported(*Semver::parse("1.37.0-alpha")));
return 0;
}
static int version_test_run = version_test();
#endif
inline char* left_trim(char *c)
{
for (; *c == ' ' || *c == '\t'; ++ c);
return c;
}
inline char* right_trim(char *start)
{
char *end = start + strlen(start) - 1;
for (; end >= start && (*end == ' ' || *end == '\t'); -- end);
*(++ end) = 0;
return end;
}
inline std::string unquote_value(char *value, char *end, const std::string &path, int idx_line)
{
std::string svalue;
if (value == end) {
// Empty string is a valid string.
} else if (*value == '"') {
if (++ value > -- end || *end != '"')
throw file_parser_error("String not enquoted correctly", path, idx_line);
*end = 0;
if (! unescape_string_cstyle(value, svalue))
throw file_parser_error("Invalid escape sequence inside a quoted string", path, idx_line);
} else
svalue.assign(value, end);
return svalue;
}
inline std::string unquote_version_comment(char *value, char *end, const std::string &path, int idx_line)
{
std::string svalue;
if (value == end) {
// Empty string is a valid string.
} else if (*value == '"') {
if (++ value > -- end || *end != '"')
throw file_parser_error("Version comment not enquoted correctly", path, idx_line);
*end = 0;
if (! unescape_string_cstyle(value, svalue))
throw file_parser_error("Invalid escape sequence inside a quoted version comment", path, idx_line);
} else
svalue.assign(value, end);
return svalue;
}
size_t Index::load(const boost::filesystem::path &path)
{
m_configs.clear();
m_vendor = path.stem().string();
boost::nowide::ifstream ifs(path.string());
std::string line;
size_t idx_line = 0;
Version ver;
while (std::getline(ifs, line)) {
++ idx_line;
// Skip the initial white spaces.
char *key = left_trim(const_cast<char*>(line.data()));
if (*key == '#')
// Skip a comment line.
continue;
// Right trim the line.
char *end = right_trim(key);
if (key == end)
// Skip an empty line.
continue;
// Keyword may only contain alphanumeric characters. Semantic version may in addition contain "+.-".
char *key_end = key;
bool maybe_semver = true;
for (; *key_end != 0; ++ key_end) {
if (std::isalnum(*key_end) || strchr("+.-", *key_end) != nullptr) {
// It may be a semver.
} else if (*key_end == '_') {
// Cannot be a semver, but it may be a key.
maybe_semver = false;
} else
// End of semver or keyword.
break;
}
if (*key_end != 0 && *key_end != ' ' && *key_end != '\t' && *key_end != '=')
throw file_parser_error("Invalid keyword or semantic version", path, idx_line);
char *value = left_trim(key_end);
bool key_value_pair = *value == '=';
if (key_value_pair)
value = left_trim(value + 1);
*key_end = 0;
boost::optional<Semver> semver;
if (maybe_semver)
semver = Semver::parse(key);
if (key_value_pair) {
if (semver)
throw file_parser_error("Key cannot be a semantic version", path, idx_line);\
// Verify validity of the key / value pair.
std::string svalue = unquote_value(value, end, path.string(), idx_line);
if (strcmp(key, "min_slic3r_version") == 0 || strcmp(key, "max_slic3r_version") == 0) {
if (! svalue.empty())
semver = Semver::parse(svalue);
if (! semver)
throw file_parser_error(std::string(key) + " must referece a valid semantic version", path, idx_line);
if (strcmp(key, "min_slic3r_version") == 0)
ver.min_slic3r_version = *semver;
else
ver.max_slic3r_version = *semver;
} else {
// Ignore unknown keys, as there may come new keys in the future.
}
continue;
}
if (! semver)
throw file_parser_error("Invalid semantic version", path, idx_line);
ver.config_version = *semver;
ver.comment = (end <= key_end) ? "" : unquote_version_comment(value, end, path.string(), idx_line);
m_configs.emplace_back(ver);
}
// Sort the configs by their version.
std::sort(m_configs.begin(), m_configs.end(), [](const Version &v1, const Version &v2) { return v1.config_version < v2.config_version; });
return m_configs.size();
}
Semver Index::version() const
{
Semver ver = Semver::zero();
for (const Version &cv : m_configs)
if (cv.config_version >= ver)
ver = cv.config_version;
return ver;
}
Index::const_iterator Index::find(const Semver &ver) const
{
Version key;
key.config_version = ver;
auto it = std::lower_bound(m_configs.begin(), m_configs.end(), key,
[](const Version &v1, const Version &v2) { return v1.config_version < v2.config_version; });
return (it == m_configs.end() || it->config_version == ver) ? it : m_configs.end();
}
Index::const_iterator Index::recommended() const
{
int idx = -1;
const_iterator highest = this->end();
for (const_iterator it = this->begin(); it != this->end(); ++ it)
if (it->is_current_slic3r_supported() &&
(highest == this->end() || highest->config_version < it->config_version))
highest = it;
return highest;
}
std::vector<Index> Index::load_db()
{
boost::filesystem::path cache_dir = boost::filesystem::path(Slic3r::data_dir()) / "cache";
std::vector<Index> index_db;
std::string errors_cummulative;
for (auto &dir_entry : boost::filesystem::directory_iterator(cache_dir))
if (boost::filesystem::is_regular_file(dir_entry.status()) && boost::algorithm::iends_with(dir_entry.path().filename().string(), ".idx")) {
Index idx;
try {
idx.load(dir_entry.path());
} catch (const std::runtime_error &err) {
errors_cummulative += err.what();
errors_cummulative += "\n";
continue;
}
index_db.emplace_back(std::move(idx));
}
if (! errors_cummulative.empty())
throw std::runtime_error(errors_cummulative);
return index_db;
}
} // namespace Config
} // namespace GUI
} // namespace Slic3r
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