qt5base-lts/qmake/generators/metamakefile.cpp
Joerg Bornemann 7adc1d329f Remove dead code from metamakefile.cpp
Remove usage of the 'if (0 && ...)' pattern that was presumably used
to temporarily disable code paths. The disabling of the two code paths
was introduced in 356a677b386648710efc4db9a8a1b4a975f95c48 (old
internal history, 2004) and
0326e3511928d90329152b9b0493da76e9caa442 (old internal history, 2006).
It can be deduced that it's pretty safe to remove both.

Change-Id: I88aee65b1286701241b5b80fbac0c65cd99ecd5e
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
2019-07-31 09:04:30 +02:00

471 lines
16 KiB
C++

/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the qmake application of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "metamakefile.h"
#include "qdir.h"
#include "qdebug.h"
#include "makefile.h"
#include "project.h"
#include "cachekeys.h"
#define BUILDSMETATYPE 1
#define SUBDIRSMETATYPE 2
QT_BEGIN_NAMESPACE
MetaMakefileGenerator::~MetaMakefileGenerator()
{
if(own_project)
delete project;
}
#ifndef QT_QMAKE_PARSER_ONLY
class BuildsMetaMakefileGenerator : public MetaMakefileGenerator
{
private:
bool init_flag;
struct Build {
QString name, build;
MakefileGenerator *makefile;
};
QList<Build *> makefiles;
void clearBuilds();
MakefileGenerator *processBuild(const ProString &);
public:
BuildsMetaMakefileGenerator(QMakeProject *p, const QString &n, bool op) : MetaMakefileGenerator(p, n, op), init_flag(false) { }
~BuildsMetaMakefileGenerator() { clearBuilds(); }
bool init() override;
int type() const override { return BUILDSMETATYPE; }
bool write() override;
};
void
BuildsMetaMakefileGenerator::clearBuilds()
{
for(int i = 0; i < makefiles.count(); i++) {
Build *build = makefiles[i];
if(QMakeProject *p = build->makefile->projectFile()) {
if(p != project)
delete p;
}
delete build->makefile;
delete build;
}
makefiles.clear();
}
bool
BuildsMetaMakefileGenerator::init()
{
if(init_flag)
return false;
init_flag = true;
const ProStringList &builds = project->values("BUILDS");
bool use_single_build = builds.isEmpty();
if(builds.count() > 1 && Option::output.fileName() == "-") {
use_single_build = true;
warn_msg(WarnLogic, "Cannot direct to stdout when using multiple BUILDS.");
}
if(!use_single_build) {
for(int i = 0; i < builds.count(); i++) {
ProString build = builds[i];
MakefileGenerator *makefile = processBuild(build);
if(!makefile)
return false;
if(!makefile->supportsMetaBuild()) {
warn_msg(WarnLogic, "QMAKESPEC does not support multiple BUILDS.");
clearBuilds();
use_single_build = true;
break;
} else {
Build *b = new Build;
b->name = name;
if(builds.count() != 1)
b->build = build.toQString();
b->makefile = makefile;
makefiles += b;
}
}
}
if(use_single_build) {
Build *build = new Build;
build->name = name;
build->makefile = createMakefileGenerator(project, false);
if (build->makefile){
makefiles += build;
}else {
delete build;
return false;
}
}
return true;
}
bool
BuildsMetaMakefileGenerator::write()
{
Build *glue = nullptr;
if(!makefiles.isEmpty() && !makefiles.first()->build.isNull()) {
glue = new Build;
glue->name = name;
glue->makefile = createMakefileGenerator(project, true);
makefiles += glue;
}
bool ret = true;
const QString &output_name = Option::output.fileName();
for(int i = 0; ret && i < makefiles.count(); i++) {
Option::output.setFileName(output_name);
Build *build = makefiles[i];
bool using_stdout = false;
if(build->makefile && (Option::qmake_mode == Option::QMAKE_GENERATE_MAKEFILE ||
Option::qmake_mode == Option::QMAKE_GENERATE_PROJECT)
&& (!build->makefile->supportsMergedBuilds()
|| (build->makefile->supportsMergedBuilds() && (!glue || build == glue)))) {
//open output
if(!(Option::output.isOpen())) {
if(Option::output.fileName() == "-") {
Option::output.setFileName("");
Option::output_dir = qmake_getpwd();
Option::output.open(stdout, QIODevice::WriteOnly | QIODevice::Text);
using_stdout = true;
} else {
if(Option::output.fileName().isEmpty() &&
Option::qmake_mode == Option::QMAKE_GENERATE_MAKEFILE)
Option::output.setFileName(project->first("QMAKE_MAKEFILE").toQString());
QString build_name = build->name;
if(!build->build.isEmpty()) {
if(!build_name.isEmpty())
build_name += ".";
build_name += build->build;
}
if(!build->makefile->openOutput(Option::output, build_name)) {
fprintf(stderr, "Failure to open file: %s\n",
Option::output.fileName().isEmpty() ? "(stdout)" :
Option::output.fileName().toLatin1().constData());
return false;
}
}
}
} else {
using_stdout = true; //kind of..
}
if(!build->makefile) {
ret = false;
} else if(build == glue) {
ret = build->makefile->writeProjectMakefile();
} else {
ret = build->makefile->write();
if (glue && glue->makefile->supportsMergedBuilds())
ret = glue->makefile->mergeBuildProject(build->makefile);
}
if(!using_stdout) {
Option::output.close();
if(!ret)
Option::output.remove();
}
}
return ret;
}
MakefileGenerator
*BuildsMetaMakefileGenerator::processBuild(const ProString &build)
{
if(project) {
debug_msg(1, "Meta Generator: Parsing '%s' for build [%s].",
project->projectFile().toLatin1().constData(),build.toLatin1().constData());
//initialize the base
ProValueMap basevars;
ProStringList basecfgs = project->values(ProKey(build + ".CONFIG"));
basecfgs += build;
basecfgs += "build_pass";
basevars["BUILD_PASS"] = ProStringList(build);
ProStringList buildname = project->values(ProKey(build + ".name"));
basevars["BUILD_NAME"] = (buildname.isEmpty() ? ProStringList(build) : buildname);
//create project
QMakeProject *build_proj = new QMakeProject;
build_proj->setExtraVars(basevars);
build_proj->setExtraConfigs(basecfgs);
if (build_proj->read(project->projectFile()))
return createMakefileGenerator(build_proj);
}
return nullptr;
}
class SubdirsMetaMakefileGenerator : public MetaMakefileGenerator
{
protected:
bool init_flag;
struct Subdir {
Subdir() : makefile(nullptr), indent(0) { }
~Subdir() { delete makefile; }
QString input_dir;
QString output_dir, output_file;
MetaMakefileGenerator *makefile;
int indent;
};
QList<Subdir *> subs;
MakefileGenerator *processBuild(const QString &);
public:
SubdirsMetaMakefileGenerator(QMakeProject *p, const QString &n, bool op) : MetaMakefileGenerator(p, n, op), init_flag(false) { }
~SubdirsMetaMakefileGenerator();
bool init() override;
int type() const override { return SUBDIRSMETATYPE; }
bool write() override;
};
bool
SubdirsMetaMakefileGenerator::init()
{
if(init_flag)
return false;
init_flag = true;
bool hasError = false;
bool recurse = Option::recursive;
if (recurse && project->isActiveConfig("dont_recurse"))
recurse = false;
if(recurse) {
QString old_output_dir = Option::output_dir;
QString old_output = Option::output.fileName();
QString oldpwd = qmake_getpwd();
QString thispwd = oldpwd;
if(!thispwd.endsWith('/'))
thispwd += '/';
const ProStringList &subdirs = project->values("SUBDIRS");
static int recurseDepth = -1;
++recurseDepth;
for(int i = 0; i < subdirs.size(); ++i) {
Subdir *sub = new Subdir;
sub->indent = recurseDepth;
QFileInfo subdir(subdirs.at(i).toQString());
const ProKey fkey(subdirs.at(i) + ".file");
if (!project->isEmpty(fkey)) {
subdir = project->first(fkey).toQString();
} else {
const ProKey skey(subdirs.at(i) + ".subdir");
if (!project->isEmpty(skey))
subdir = project->first(skey).toQString();
}
QString sub_name;
if(subdir.isDir())
subdir = QFileInfo(subdir.filePath() + "/" + subdir.fileName() + Option::pro_ext);
else
sub_name = subdir.baseName();
if(!subdir.isRelative()) { //we can try to make it relative
QString subdir_path = subdir.filePath();
if(subdir_path.startsWith(thispwd))
subdir = QFileInfo(subdir_path.mid(thispwd.length()));
}
//handle sub project
QMakeProject *sub_proj = new QMakeProject;
for (int ind = 0; ind < sub->indent; ++ind)
printf(" ");
sub->input_dir = subdir.absolutePath();
if(subdir.isRelative() && old_output_dir != oldpwd) {
sub->output_dir = old_output_dir + (subdir.path() != "." ? "/" + subdir.path() : QString());
printf("Reading %s [%s]\n", subdir.absoluteFilePath().toLatin1().constData(), sub->output_dir.toLatin1().constData());
} else { //what about shadow builds?
sub->output_dir = sub->input_dir;
printf("Reading %s\n", subdir.absoluteFilePath().toLatin1().constData());
}
qmake_setpwd(sub->input_dir);
Option::output_dir = sub->output_dir;
bool tmpError = !sub_proj->read(subdir.fileName());
if (!sub_proj->isEmpty("QMAKE_FAILED_REQUIREMENTS")) {
fprintf(stderr, "Project file(%s) not recursed because all requirements not met:\n\t%s\n",
subdir.fileName().toLatin1().constData(),
sub_proj->values("QMAKE_FAILED_REQUIREMENTS").join(' ').toLatin1().constData());
delete sub;
delete sub_proj;
Option::output_dir = old_output_dir;
qmake_setpwd(oldpwd);
continue;
} else {
hasError |= tmpError;
}
sub->makefile = MetaMakefileGenerator::createMetaGenerator(sub_proj, sub_name);
const QString output_name = Option::output.fileName();
Option::output.setFileName(sub->output_file);
hasError |= !sub->makefile->write();
delete sub;
qmakeClearCaches();
sub = nullptr;
Option::output.setFileName(output_name);
Option::output_dir = old_output_dir;
qmake_setpwd(oldpwd);
}
--recurseDepth;
Option::output.setFileName(old_output);
Option::output_dir = old_output_dir;
qmake_setpwd(oldpwd);
}
Subdir *self = new Subdir;
self->input_dir = qmake_getpwd();
self->output_dir = Option::output_dir;
if(!recurse || (!Option::output.fileName().endsWith(Option::dir_sep) && !QFileInfo(Option::output).isDir()))
self->output_file = Option::output.fileName();
self->makefile = new BuildsMetaMakefileGenerator(project, name, false);
self->makefile->init();
subs.append(self);
return !hasError;
}
bool
SubdirsMetaMakefileGenerator::write()
{
bool ret = true;
const QString &pwd = qmake_getpwd();
const QString &output_dir = Option::output_dir;
const QString &output_name = Option::output.fileName();
for(int i = 0; ret && i < subs.count(); i++) {
const Subdir *sub = subs.at(i);
qmake_setpwd(sub->input_dir);
Option::output_dir = QFileInfo(sub->output_dir).absoluteFilePath();
Option::output.setFileName(sub->output_file);
if(i != subs.count()-1) {
for (int ind = 0; ind < sub->indent; ++ind)
printf(" ");
printf("Writing %s\n", QDir::cleanPath(Option::output_dir+"/"+
Option::output.fileName()).toLatin1().constData());
}
if (!(ret = sub->makefile->write()))
break;
//restore because I'm paranoid
qmake_setpwd(pwd);
Option::output.setFileName(output_name);
Option::output_dir = output_dir;
}
return ret;
}
SubdirsMetaMakefileGenerator::~SubdirsMetaMakefileGenerator()
{
for(int i = 0; i < subs.count(); i++)
delete subs[i];
subs.clear();
}
//Factory things
QT_BEGIN_INCLUDE_NAMESPACE
#include "unixmake.h"
#include "mingw_make.h"
#include "projectgenerator.h"
#include "pbuilder_pbx.h"
#include "msvc_nmake.h"
#include "msvc_vcproj.h"
#include "msvc_vcxproj.h"
QT_END_INCLUDE_NAMESPACE
MakefileGenerator *
MetaMakefileGenerator::createMakefileGenerator(QMakeProject *proj, bool noIO)
{
Option::postProcessProject(proj);
MakefileGenerator *mkfile = nullptr;
if(Option::qmake_mode == Option::QMAKE_GENERATE_PROJECT) {
mkfile = new ProjectGenerator;
mkfile->setProjectFile(proj);
return mkfile;
}
ProString gen = proj->first("MAKEFILE_GENERATOR");
if(gen.isEmpty()) {
fprintf(stderr, "MAKEFILE_GENERATOR variable not set as a result of parsing : %s. Possibly qmake was not able to find files included using \"include(..)\" - enable qmake debugging to investigate more.\n",
proj->projectFile().toLatin1().constData());
} else if(gen == "UNIX") {
mkfile = new UnixMakefileGenerator;
} else if(gen == "MINGW") {
mkfile = new MingwMakefileGenerator;
} else if(gen == "PROJECTBUILDER" || gen == "XCODE") {
#ifdef Q_CC_MSVC
fprintf(stderr, "Generating Xcode projects is not supported with an MSVC build of Qt.\n");
#else
mkfile = new ProjectBuilderMakefileGenerator;
#endif
} else if(gen == "MSVC.NET") {
if (proj->first("TEMPLATE").startsWith("vc"))
mkfile = new VcprojGenerator;
else
mkfile = new NmakeMakefileGenerator;
} else if(gen == "MSBUILD") {
// Visual Studio >= v11.0
if (proj->first("TEMPLATE").startsWith("vc"))
mkfile = new VcxprojGenerator;
else
mkfile = new NmakeMakefileGenerator;
} else {
fprintf(stderr, "Unknown generator specified: %s\n", gen.toLatin1().constData());
}
if (mkfile) {
mkfile->setNoIO(noIO);
mkfile->setProjectFile(proj);
}
return mkfile;
}
MetaMakefileGenerator *
MetaMakefileGenerator::createMetaGenerator(QMakeProject *proj, const QString &name, bool op, bool *success)
{
Option::postProcessProject(proj);
MetaMakefileGenerator *ret = nullptr;
if ((Option::qmake_mode == Option::QMAKE_GENERATE_MAKEFILE ||
Option::qmake_mode == Option::QMAKE_GENERATE_PRL)) {
if (proj->first("TEMPLATE").endsWith("subdirs"))
ret = new SubdirsMetaMakefileGenerator(proj, name, op);
}
if (!ret)
ret = new BuildsMetaMakefileGenerator(proj, name, op);
bool res = ret->init();
if (success)
*success = res;
return ret;
}
#endif // QT_QMAKE_PARSER_ONLY
QT_END_NAMESPACE