Include entries for directories in tarballs (#11020)
Use libarchive through class cmArchiveWrite to implement the method cmSystemTools::CreateTar. The class includes entries for directories by automatically traversing the tree on disk.
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Brad King
parent
c7c90095d4
commit
1b5b2ed3b2
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@ -23,6 +23,7 @@
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#include <cmsys/Directory.hxx>
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#include <cmsys/System.h>
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#if defined(CMAKE_BUILD_WITH_CMAKE)
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# include "cmArchiveWrite.h"
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# include <cm_libarchive.h>
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# include <cmsys/Terminal.h>
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#endif
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@ -1718,142 +1719,40 @@ bool cmSystemTools::CreateTar(const char* outFileName,
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bool gzip, bool bzip2, bool verbose)
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{
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#if defined(CMAKE_BUILD_WITH_CMAKE)
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// Create a macro to handle return from libarchive
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// functions
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#define CHECK_ARCHIVE_ERROR(res, msg)\
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if(res != ARCHIVE_OK)\
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{\
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cmSystemTools::Error(msg, \
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archive_error_string(a));\
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return false;\
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}
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std::string cwd = cmSystemTools::GetCurrentWorkingDirectory();
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// recursively expand all directories in files so that we have a list
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// of files
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std::vector<std::string> expandedFiles;
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std::ofstream fout(outFileName, std::ios::out | cmsys_ios_binary);
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if(!fout)
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{
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std::string e = "Cannot open output file \"";
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e += outFileName;
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e += "\": ";
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e += cmSystemTools::GetLastSystemError();
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cmSystemTools::Error(e.c_str());
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return false;
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}
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cmArchiveWrite a(fout, (gzip? cmArchiveWrite::CompressGZip :
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(bzip2? cmArchiveWrite::CompressBZip2 :
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cmArchiveWrite::CompressNone)));
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a.SetVerbose(verbose);
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for(std::vector<cmStdString>::const_iterator i = files.begin();
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i != files.end(); ++i)
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{
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if(cmSystemTools::FileIsDirectory(i->c_str()))
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std::string path = *i;
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if(cmSystemTools::FileIsFullPath(path.c_str()))
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{
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cmsys::Glob gl;
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std::string findExpr = *i;
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if ( findExpr[findExpr.size()-1] != '/' )
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// Get the relative path to the file.
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path = cmSystemTools::RelativePath(cwd.c_str(), path.c_str());
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}
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if(!a.Add(path))
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{
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findExpr +="/";
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}
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findExpr += "*";
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gl.RecurseOn();
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if ( gl.FindFiles(findExpr) )
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{
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std::vector<std::string> dirfiles = gl.GetFiles();
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std::copy(dirfiles.begin(), dirfiles.end(),
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std::back_inserter(expandedFiles));
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break;
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}
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}
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else
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{
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if(!cmSystemTools::FileIsFullPath(i->c_str()))
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{
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std::string fullp = cwd + "/" + *i;
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expandedFiles.push_back(fullp);
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}
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else
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{
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expandedFiles.push_back(*i);
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}
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}
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}
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int res;
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// create a new archive
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struct archive* a = archive_write_new();
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if(!a)
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{
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cmSystemTools::Error("Unable to use create archive");
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cmSystemTools::Error(a.GetError().c_str());
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return false;
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}
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if(gzip)
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{
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res = archive_write_set_compression_gzip(a);
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CHECK_ARCHIVE_ERROR(res, "Can not set gzip:");
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}
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if(bzip2)
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{
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res = archive_write_set_compression_bzip2(a);
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CHECK_ARCHIVE_ERROR(res, "Can not set bzip2:");
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}
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if(!bzip2 && !gzip)
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{
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res = archive_write_set_compression_none(a);
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CHECK_ARCHIVE_ERROR(res, "Can not set none:");
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}
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res = archive_write_set_format_pax_restricted(a);
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CHECK_ARCHIVE_ERROR(res, "Can not set tar format:");
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res = archive_write_open_file(a, outFileName);
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CHECK_ARCHIVE_ERROR(res, "write open:");
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// create a new disk struct
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struct archive* disk = archive_read_disk_new();
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archive_read_disk_set_standard_lookup(disk);
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std::vector<std::string>::const_iterator fileIt;
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for ( fileIt = expandedFiles.begin();
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fileIt != expandedFiles.end(); ++ fileIt )
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{
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// create a new entry for each file
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struct archive_entry *entry = archive_entry_new();
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// Get the relative path to the file
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std::string rp = cmSystemTools::RelativePath(cwd.c_str(),
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fileIt->c_str());
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if(verbose)
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{
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std::cout << rp << "\n";
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}
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// Set the name of the entry to the file name
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archive_entry_set_pathname(entry, rp.c_str());
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archive_read_disk_entry_from_file(disk, entry, -1, 0);
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CHECK_ARCHIVE_ERROR(res, "read disk entry:");
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// write entry header
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res = archive_write_header(a, entry);
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CHECK_ARCHIVE_ERROR(res, "write header: ");
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if(archive_entry_size(entry) > 0)
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{
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// now copy contents of file into archive a
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FILE* file = fopen(fileIt->c_str(), "rb");
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if(!file)
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{
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cmSystemTools::Error("Problem with fopen(): ",
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fileIt->c_str());
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return false;
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}
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char buff[16384];
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size_t len = fread(buff, 1, sizeof(buff), file);
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while (len > 0)
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{
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size_t wlen = archive_write_data(a, buff, len);
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if(wlen != len)
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{
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cmOStringStream error;
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error << "Problem with archive_write_data\n"
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<< "Tried to write [" << len << "] bytes.\n"
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<< "archive_write_data wrote [" << wlen << "] bytes.\n";
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cmSystemTools::Error(error.str().c_str(),
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archive_error_string(a)
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);
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return false;
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}
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len = fread(buff, 1, sizeof(buff), file);
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}
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// close the file and free the entry
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fclose(file);
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}
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archive_entry_free(entry);
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}
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archive_write_close(a);
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archive_write_finish(a);
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archive_read_finish(disk);
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return true;
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#else
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(void)outFileName;
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