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copy file result enum

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This commit is contained in:
David Kocik 2020-02-27 10:44:25 +01:00
parent c76526249a
commit 26c89300f3
3 changed files with 35 additions and 24 deletions
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16
src/libslic3r/Utils.hpp
View file

@ -64,15 +64,23 @@ extern std::string normalize_utf8_nfc(const char *src);
// for a short while, so the file may not be movable. Retry while we see recoverable errors.
extern std::error_code rename_file(const std::string &from, const std::string &to);
enum CopyFileResult {
SUCCESS = 0,
FAIL_COPY_FILE,
FAIL_FILES_DIFFERENT,
FAIL_RENAMING,
FAIL_CHECK_ORIGIN_NOT_OPENED,
FAIL_CHECK_TARGET_NOT_OPENED
};
// Copy a file, adjust the access attributes, so that the target is writable.
int copy_file_inner(const std::string &from, const std::string &to);
CopyFileResult copy_file_inner(const std::string &from, const std::string &to);
// Copy file to a temp file first, then rename it to the final file name.
// If with_check is true, then the content of the copied file is compared to the content
// of the source file before renaming.
extern int copy_file(const std::string &from, const std::string &to, const bool with_check = false);
extern CopyFileResult copy_file(const std::string &from, const std::string &to, const bool with_check = false);
// Compares two files, returns 0 if identical, -1 if different.
extern int check_copy(const std::string& origin, const std::string& copy);
// Compares two files if identical.
extern CopyFileResult check_copy(const std::string& origin, const std::string& copy);
// Ignore system and hidden files, which may be created by the DropBox synchronisation process.
// https://github.com/prusa3d/PrusaSlicer/issues/1298

26
src/libslic3r/utils.cpp
View file

@ -417,7 +417,7 @@ std::error_code rename_file(const std::string &from, const std::string &to)
#endif
}
int copy_file_inner(const std::string& from, const std::string& to)
CopyFileResult copy_file_inner(const std::string& from, const std::string& to)
{
const boost::filesystem::path source(from);
const boost::filesystem::path target(to);
@ -433,40 +433,40 @@ int copy_file_inner(const std::string& from, const std::string& to)
boost::filesystem::permissions(target, perms, ec);
boost::filesystem::copy_file(source, target, boost::filesystem::copy_option::overwrite_if_exists, ec);
if (ec) {
return -1;
return FAIL_COPY_FILE;
}
boost::filesystem::permissions(target, perms, ec);
return 0;
return SUCCESS;
}
int copy_file(const std::string &from, const std::string &to, const bool with_check)
CopyFileResult copy_file(const std::string &from, const std::string &to, const bool with_check)
{
std::string to_temp = to + ".tmp";
int ret_val = copy_file_inner(from,to_temp);
if(ret_val == 0)
CopyFileResult ret_val = copy_file_inner(from,to_temp);
if(ret_val == SUCCESS)
{
if (with_check)
ret_val = check_copy(from, to_temp);
if (ret_val == 0 && rename_file(to_temp, to))
ret_val = -3;
ret_val = FAIL_RENAMING;
}
return ret_val;
}
int check_copy(const std::string &origin, const std::string &copy)
CopyFileResult check_copy(const std::string &origin, const std::string &copy)
{
boost::nowide::ifstream f1(origin, std::ifstream::in | std::ifstream::binary | std::ifstream::ate);
boost::nowide::ifstream f2(copy, std::ifstream::in | std::ifstream::binary | std::ifstream::ate);
if (f1.fail())
return -4;
return FAIL_CHECK_ORIGIN_NOT_OPENED;
if (f2.fail())
return -5;
return FAIL_CHECK_TARGET_NOT_OPENED;
std::streampos fsize = f1.tellg();
if (fsize != f2.tellg())
return -2;
return FAIL_FILES_DIFFERENT;
f1.seekg(0, std::ifstream::beg);
f2.seekg(0, std::ifstream::beg);
@ -483,12 +483,12 @@ int check_copy(const std::string &origin, const std::string &copy)
if (origin_cnt != copy_cnt ||
(origin_cnt > 0 && std::memcmp(buffer_origin.data(), buffer_copy.data(), origin_cnt) != 0))
// Files are different.
return -2;
return FAIL_FILES_DIFFERENT;
fsize -= origin_cnt;
} while (f1.good() && f2.good());
// All data has been read and compared equal.
return (f1.eof() && f2.eof() && fsize == 0) ? 0 : -2;
return (f1.eof() && f2.eof() && fsize == 0) ? SUCCESS : FAIL_FILES_DIFFERENT;
}
// Ignore system and hidden files, which may be created by the DropBox synchronisation process.