CMake/Source/cmGetDirectoryPropertyCommand.cxx
Brad King 86578eccf2 Simplify CMake per-source license notices
Per-source copyright/license notice headers that spell out copyright holder
names and years are hard to maintain and often out-of-date or plain wrong.
Precise contributor information is already maintained automatically by the
version control tool.  Ultimately it is the receiver of a file who is
responsible for determining its licensing status, and per-source notices are
merely a convenience.  Therefore it is simpler and more accurate for
each source to have a generic notice of the license name and references to
more detailed information on copyright holders and full license terms.

Our `Copyright.txt` file now contains a list of Contributors whose names
appeared source-level copyright notices.  It also references version control
history for more precise information.  Therefore we no longer need to spell
out the list of Contributors in each source file notice.

Replace CMake per-source copyright/license notice headers with a short
description of the license and links to `Copyright.txt` and online information
available from "https://cmake.org/licensing".  The online URL also handles
cases of modules being copied out of our source into other projects, so we
can drop our notices about replacing links with full license text.

Run the `Utilities/Scripts/filter-notices.bash` script to perform the majority
of the replacements mechanically.  Manually fix up shebang lines and trailing
newlines in a few files.  Manually update the notices in a few files that the
script does not handle.
2016-09-27 15:14:44 -04:00

99 lines
2.9 KiB
C++

/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmGetDirectoryPropertyCommand.h"
#include "cmake.h"
// cmGetDirectoryPropertyCommand
bool cmGetDirectoryPropertyCommand::InitialPass(
std::vector<std::string> const& args, cmExecutionStatus&)
{
if (args.size() < 2) {
this->SetError("called with incorrect number of arguments");
return false;
}
std::vector<std::string>::const_iterator i = args.begin();
std::string variable = *i;
++i;
// get the directory argument if there is one
cmMakefile* dir = this->Makefile;
if (*i == "DIRECTORY") {
++i;
if (i == args.end()) {
this->SetError(
"DIRECTORY argument provided without subsequent arguments");
return false;
}
std::string sd = *i;
// make sure the start dir is a full path
if (!cmSystemTools::FileIsFullPath(sd.c_str())) {
sd = this->Makefile->GetCurrentSourceDirectory();
sd += "/";
sd += *i;
}
// The local generators are associated with collapsed paths.
sd = cmSystemTools::CollapseFullPath(sd);
// lookup the makefile from the directory name
dir = this->Makefile->GetGlobalGenerator()->FindMakefile(sd);
if (!dir) {
this->SetError(
"DIRECTORY argument provided but requested directory not found. "
"This could be because the directory argument was invalid or, "
"it is valid but has not been processed yet.");
return false;
}
++i;
}
// OK, now we have the directory to process, we just get the requested
// information out of it
if (*i == "DEFINITION") {
++i;
if (i == args.end()) {
this->SetError("A request for a variable definition was made without "
"providing the name of the variable to get.");
return false;
}
std::string output = dir->GetSafeDefinition(*i);
this->Makefile->AddDefinition(variable, output.c_str());
return true;
}
const char* prop = CM_NULLPTR;
if (!i->empty()) {
if (*i == "DEFINITIONS") {
switch (this->Makefile->GetPolicyStatus(cmPolicies::CMP0059)) {
case cmPolicies::WARN:
this->Makefile->IssueMessage(
cmake::AUTHOR_WARNING,
cmPolicies::GetPolicyWarning(cmPolicies::CMP0059));
case cmPolicies::OLD:
this->StoreResult(variable, this->Makefile->GetDefineFlagsCMP0059());
return true;
case cmPolicies::NEW:
case cmPolicies::REQUIRED_ALWAYS:
case cmPolicies::REQUIRED_IF_USED:
break;
}
}
prop = dir->GetProperty(*i);
}
this->StoreResult(variable, prop);
return true;
}
void cmGetDirectoryPropertyCommand::StoreResult(std::string const& variable,
const char* prop)
{
if (prop) {
this->Makefile->AddDefinition(variable, prop);
return;
}
this->Makefile->AddDefinition(variable, "");
}