382 lines
10 KiB
C++
382 lines
10 KiB
C++
/*============================================================================
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CMake - Cross Platform Makefile Generator
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Copyright 2000-2010 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
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see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the License for more information.
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============================================================================*/
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#include "cmArchiveWrite.h"
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#include "cmLocale.h"
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#include "cmSystemTools.h"
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#include "cm_get_date.h"
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#include <cm_libarchive.h>
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#include <cmsys/Directory.hxx>
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#include <cmsys/FStream.hxx>
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#ifndef __LA_SSIZE_T
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# define __LA_SSIZE_T la_ssize_t
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#endif
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static std::string cm_archive_error_string(struct archive* a)
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{
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const char* e = archive_error_string(a);
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return e? e : "unknown error";
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}
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static void cm_archive_entry_copy_pathname(struct archive_entry* e,
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const std::string& dest)
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{
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#if cmsys_STL_HAS_WSTRING
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archive_entry_copy_pathname_w(e, cmsys::Encoding::ToWide(dest).c_str());
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#else
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archive_entry_copy_pathname(e, dest.c_str());
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#endif
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}
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static void cm_archive_entry_copy_sourcepath(struct archive_entry* e,
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const std::string& file)
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{
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#if cmsys_STL_HAS_WSTRING
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archive_entry_copy_sourcepath_w(e, cmsys::Encoding::ToWide(file).c_str());
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#else
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archive_entry_copy_sourcepath(e, file.c_str());
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#endif
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}
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class cmArchiveWrite::Entry
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{
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struct archive_entry* Object;
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public:
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Entry(): Object(archive_entry_new()) {}
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~Entry() { archive_entry_free(this->Object); }
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operator struct archive_entry*() { return this->Object; }
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};
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struct cmArchiveWrite::Callback
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{
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// archive_write_callback
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static __LA_SSIZE_T Write(struct archive*, void *cd,
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const void *b, size_t n)
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{
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cmArchiveWrite* self = static_cast<cmArchiveWrite*>(cd);
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if(self->Stream.write(static_cast<const char*>(b),
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static_cast<std::streamsize>(n)))
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{
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return static_cast<__LA_SSIZE_T>(n);
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}
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else
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{
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return static_cast<__LA_SSIZE_T>(-1);
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}
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}
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};
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cmArchiveWrite::cmArchiveWrite(
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std::ostream& os, Compress c, std::string const& format):
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Stream(os),
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Archive(archive_write_new()),
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Disk(archive_read_disk_new()),
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Verbose(false),
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Format(format)
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{
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switch (c)
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{
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case CompressNone:
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if(archive_write_add_filter_none(this->Archive) != ARCHIVE_OK)
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{
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this->Error = "archive_write_add_filter_none: ";
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this->Error += cm_archive_error_string(this->Archive);
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return;
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}
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break;
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case CompressCompress:
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if(archive_write_add_filter_compress(this->Archive) != ARCHIVE_OK)
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{
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this->Error = "archive_write_add_filter_compress: ";
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this->Error += cm_archive_error_string(this->Archive);
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return;
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}
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break;
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case CompressGZip:
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if(archive_write_add_filter_gzip(this->Archive) != ARCHIVE_OK)
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{
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this->Error = "archive_write_add_filter_gzip: ";
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this->Error += cm_archive_error_string(this->Archive);
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return;
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}
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break;
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case CompressBZip2:
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if(archive_write_add_filter_bzip2(this->Archive) != ARCHIVE_OK)
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{
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this->Error = "archive_write_add_filter_bzip2: ";
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this->Error += cm_archive_error_string(this->Archive);
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return;
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}
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break;
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case CompressLZMA:
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if(archive_write_add_filter_lzma(this->Archive) != ARCHIVE_OK)
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{
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this->Error = "archive_write_add_filter_lzma: ";
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this->Error += cm_archive_error_string(this->Archive);
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return;
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}
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break;
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case CompressXZ:
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if(archive_write_add_filter_xz(this->Archive) != ARCHIVE_OK)
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{
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this->Error = "archive_write_add_filter_xz: ";
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this->Error += cm_archive_error_string(this->Archive);
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return;
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}
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break;
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};
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#if !defined(_WIN32) || defined(__CYGWIN__)
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if (archive_read_disk_set_standard_lookup(this->Disk) != ARCHIVE_OK)
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{
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this->Error = "archive_read_disk_set_standard_lookup: ";
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this->Error += cm_archive_error_string(this->Archive);
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return;
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}
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#endif
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if(archive_write_set_format_by_name(this->Archive, format.c_str())
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!= ARCHIVE_OK)
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{
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this->Error = "archive_write_set_format_by_name: ";
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this->Error += cm_archive_error_string(this->Archive);
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return;
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}
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// do not pad the last block!!
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if (archive_write_set_bytes_in_last_block(this->Archive, 1))
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{
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this->Error = "archive_write_set_bytes_in_last_block: ";
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this->Error += cm_archive_error_string(this->Archive);
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return;
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}
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if(archive_write_open(
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this->Archive, this, 0,
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reinterpret_cast<archive_write_callback*>(&Callback::Write),
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0) != ARCHIVE_OK)
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{
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this->Error = "archive_write_open: ";
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this->Error += cm_archive_error_string(this->Archive);
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return;
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}
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}
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cmArchiveWrite::~cmArchiveWrite()
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{
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archive_read_free(this->Disk);
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archive_write_free(this->Archive);
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}
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bool cmArchiveWrite::Add(std::string path,
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size_t skip,
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const char* prefix,
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bool recursive)
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{
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if(this->Okay())
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{
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if(!path.empty() && path[path.size()-1] == '/')
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{
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path.erase(path.size()-1);
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}
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this->AddPath(path.c_str(), skip, prefix, recursive);
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}
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return this->Okay();
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}
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bool cmArchiveWrite::AddPath(const char* path,
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size_t skip, const char* prefix,
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bool recursive)
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{
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if(!this->AddFile(path, skip, prefix))
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{
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return false;
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}
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if((!cmSystemTools::FileIsDirectory(path) || !recursive) ||
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cmSystemTools::FileIsSymlink(path))
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{
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return true;
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}
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cmsys::Directory d;
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if(d.Load(path))
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{
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std::string next = path;
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next += "/";
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std::string::size_type end = next.size();
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unsigned long n = d.GetNumberOfFiles();
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for(unsigned long i = 0; i < n; ++i)
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{
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const char* file = d.GetFile(i);
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if(strcmp(file, ".") != 0 && strcmp(file, "..") != 0)
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{
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next.erase(end);
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next += file;
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if(!this->AddPath(next.c_str(), skip, prefix))
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{
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return false;
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}
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}
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}
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}
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return true;
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}
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bool cmArchiveWrite::AddFile(const char* file,
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size_t skip, const char* prefix)
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{
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// Skip the file if we have no name for it. This may happen on a
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// top-level directory, which does not need to be included anyway.
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if(skip >= strlen(file))
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{
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return true;
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}
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const char* out = file + skip;
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cmLocaleRAII localeRAII;
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static_cast<void>(localeRAII);
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// Meta-data.
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std::string dest = prefix? prefix : "";
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dest += out;
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if(this->Verbose)
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{
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std::cout << dest << "\n";
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}
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Entry e;
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cm_archive_entry_copy_sourcepath(e, file);
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cm_archive_entry_copy_pathname(e, dest);
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if(archive_read_disk_entry_from_file(this->Disk, e, -1, 0) != ARCHIVE_OK)
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{
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this->Error = "archive_read_disk_entry_from_file '";
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this->Error += file;
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this->Error += "': ";
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this->Error += cm_archive_error_string(this->Disk);
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return false;
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}
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if (!this->MTime.empty())
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{
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time_t now;
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time(&now);
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time_t t = cm_get_date(now, this->MTime.c_str());
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if (t == -1)
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{
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this->Error = "unable to parse mtime '";
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this->Error += this->MTime;
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this->Error += "'";
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return false;
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}
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archive_entry_set_mtime(e, t, 0);
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}
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// manages the uid/guid of the entry (if any)
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if (this->Uid.IsSet() && this->Gid.IsSet())
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{
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archive_entry_set_uid(e, this->Uid.Get());
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archive_entry_set_gid(e, this->Gid.Get());
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}
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if (this->Uname.size() && this->Gname.size())
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{
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archive_entry_set_uname(e, this->Uname.c_str());
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archive_entry_set_gname(e, this->Gname.c_str());
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}
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// manages the permissions
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if (this->Permissions.IsSet())
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{
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archive_entry_set_perm(e, this->Permissions.Get());
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}
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if (this->PermissionsMask.IsSet())
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{
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mode_t perm = archive_entry_perm(e);
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archive_entry_set_perm(e, perm & this->PermissionsMask.Get());
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}
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// Clear acl and xattr fields not useful for distribution.
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archive_entry_acl_clear(e);
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archive_entry_xattr_clear(e);
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archive_entry_set_fflags(e, 0, 0);
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if (this->Format == "pax" || this->Format == "paxr")
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{
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// Sparse files are a GNU tar extension.
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// Do not use them in standard tar files.
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archive_entry_sparse_clear(e);
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}
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if(archive_write_header(this->Archive, e) != ARCHIVE_OK)
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{
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this->Error = "archive_write_header: ";
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this->Error += cm_archive_error_string(this->Archive);
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return false;
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}
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// do not copy content of symlink
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if (!archive_entry_symlink(e))
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{
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// Content.
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if(size_t size = static_cast<size_t>(archive_entry_size(e)))
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{
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return this->AddData(file, size);
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}
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}
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return true;
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}
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bool cmArchiveWrite::AddData(const char* file, size_t size)
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{
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cmsys::ifstream fin(file, std::ios::in | std::ios::binary);
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if(!fin)
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{
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this->Error = "Error opening \"";
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this->Error += file;
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this->Error += "\": ";
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this->Error += cmSystemTools::GetLastSystemError();
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return false;
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}
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char buffer[16384];
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size_t nleft = size;
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while(nleft > 0)
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{
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typedef std::streamsize ssize_type;
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size_t const nnext = nleft > sizeof(buffer)? sizeof(buffer) : nleft;
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ssize_type const nnext_s = static_cast<ssize_type>(nnext);
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fin.read(buffer, nnext_s);
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// Some stream libraries (older HPUX) return failure at end of
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// file on the last read even if some data were read. Check
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// gcount instead of trusting the stream error status.
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if(static_cast<size_t>(fin.gcount()) != nnext)
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{
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break;
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}
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if(archive_write_data(this->Archive, buffer, nnext) != nnext_s)
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{
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this->Error = "archive_write_data: ";
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this->Error += cm_archive_error_string(this->Archive);
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return false;
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}
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nleft -= nnext;
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}
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if(nleft > 0)
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{
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this->Error = "Error reading \"";
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this->Error += file;
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this->Error += "\": ";
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this->Error += cmSystemTools::GetLastSystemError();
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return false;
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}
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return true;
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}
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