diff options
Diffstat (limited to 'Source/cmcmd.cxx')
| -rw-r--r-- | Source/cmcmd.cxx | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/Source/cmcmd.cxx b/Source/cmcmd.cxx index 49e8a4f..1a5fea1 100644 --- a/Source/cmcmd.cxx +++ b/Source/cmcmd.cxx @@ -126,6 +126,7 @@ void CMakeCommandUsage(const char* program) << " touch <file>... - touch a <file>.\n" << " touch_nocreate <file>... - touch a <file> but do not create it.\n" << " create_symlink old new - create a symbolic link new -> old\n" + << " create_hardlink old new - create a hard link new -> old\n" << " true - do nothing with an exit code of 0\n" << " false - do nothing with an exit code of 1\n" #if defined(_WIN32) && !defined(__CYGWIN__) @@ -1034,6 +1035,34 @@ int cmcmd::ExecuteCMakeCommand(std::vector<std::string> const& args) return 0; } + // Command to create a hard link. Fails on platforms not + // supporting them. + if (args[1] == "create_hardlink" && args.size() == 4) { + const char* SouceFileName = args[2].c_str(); + const char* destinationFileName = args[3].c_str(); + + if (!cmSystemTools::FileExists(SouceFileName)) { + std::cerr << "failed to create hard link because source path '" + << SouceFileName << "' does not exist \n"; + return 1; + } + + if ((cmSystemTools::FileExists(destinationFileName) || + cmSystemTools::FileIsSymlink(destinationFileName)) && + !cmSystemTools::RemoveFile(destinationFileName)) { + std::string emsg = cmSystemTools::GetLastSystemError(); + std::cerr << "failed to create hard link '" << destinationFileName + << "' because existing path cannot be removed: " << emsg + << "\n"; + return 1; + } + + if (!cmSystemTools::CreateLink(args[2], args[3])) { + return 1; + } + return 0; + } + // Command to do nothing with an exit code of 0. if (args[1] == "true") { return 0; |