From 3db90a688131dd4ca58a858bd0d6a95e7bf203e0 Mon Sep 17 00:00:00 2001
From: Konrad Rosenbaum <konrad@silmor.de>
Date: Mon, 19 Dec 2011 13:34:24 +0100
Subject: [PATCH] version info for git

---
 qtbase/include/wob.h   |    2 +
 woc/proc/processor.cpp |  125 ++++++++++++++++++++++++++++++++++++++++++++++-
 woc/qt/qtout.cpp       |    2 +-
 3 files changed, 125 insertions(+), 4 deletions(-)

diff --git a/qtbase/include/wob.h b/qtbase/include/wob.h
index 85db756..7d8c6e3 100644
--- a/qtbase/include/wob.h
+++ b/qtbase/include/wob.h
@@ -34,6 +34,8 @@ enum VersionInfo{
 	VersionAuthor,
 	///contains "modified" if the source tree contained local modifications, "unmodified" if it was pristine, "local" if it was not under source control, depending on the source control system and circumstances this can also contain other values
 	VersionLocallyModified,
+	///the time at which source files were generated by woc
+	VersionGenTime,
 };
 
 
diff --git a/woc/proc/processor.cpp b/woc/proc/processor.cpp
index 096ac46..f2e5ac5 100644
--- a/woc/proc/processor.cpp
+++ b/woc/proc/processor.cpp
@@ -226,6 +226,7 @@ bool WocProcessor::processFile(QString fn)
 			m_verInfo.insert("Comm",m_verComm);
 			m_verInfo.insert("NeedComm",m_verNeedComm);
 			m_verInfo.insert("HR",m_verHR);
+			m_verInfo.insert("GenTime",QDateTime::currentDateTime().toString(Qt::ISODate));
 		}else
 		if(tn=="Doc"){
 			QString s=el.text().trimmed();
@@ -367,11 +368,129 @@ bool WocProcessor::callSvn()
 	return true;
 }
 
+class GP{
+	public:
+		GP(const QString&s){par<<s;}
+		GP(){}
+		GP&operator+(const QString&s){par<<s;return *this;}
+		GP operator+(const QString&s)const{return GP(s);}
+		operator QStringList(){return par;}
+	private:
+		QStringList par;
+};
+const GP gp;
+static bool procGit(const QStringList&param,QStringList&ret,const QString&tgt,const QString&git)
+{
+	QProcess proc;
+	proc.setProcessChannelMode(QProcess::MergedChannels);
+	proc.setWorkingDirectory(tgt);
+	proc.start(git,param);
+	proc.waitForFinished();
+	if(proc.exitCode()!=0){
+		qDebug("Warning: error while calling git %s.",param.value(0).toAscii().data());
+		return false;
+	}
+	ret=QString::fromLocal8Bit(proc.readAllStandardOutput()).split('\n');
+	return true;
+}
+
 bool WocProcessor::callGit()
 {
-	//TODO implement
-	qDebug()<<"WARNING: WocProcessor::callGit not implemented!";
-	return false;
+	QString tgt=m_baseDir+"/"+m_verTarget;
+	QStringList res;
+	//parse  branch info  and get current branch
+	QString lbranch,lrev;
+	if(!procGit(gp+"branch"+"-v",res,tgt,m_gitExe))return false;
+	foreach(QString line,res){
+		line=line.trimmed();
+		if(line.size()<3)continue;
+		if(line[0]=='*'){
+			QStringList lst=line.split(' ',QString::SkipEmptyParts);
+			if(lst.size()<3)continue;
+			//check for detached checkout
+			if(lst[1]=="(no"&&lst[2]=="branch)"){
+				if(lst.size()>3)lrev=lst[3];
+				break;
+			}
+			//remember
+			lbranch=lst[1];
+			lrev=lst[2];
+			break;
+		}
+	}
+	//low level version info
+	if(!procGit(gp+"log"+"-1"+"--format=raw",res,tgt,m_gitExe))return false;
+	QString rev,date;
+	foreach(QString line,res){
+		QStringList lst=line.split(" ",QString::SkipEmptyParts);
+		if(lst.size()<2)continue;
+		if(lst[0]=="commit")rev=lst[1];else
+		if(lst[0]=="author"){
+			if(lst.size()<4)continue;
+			QString tz=lst[lst.size()-1];
+			date=lst[lst.size()-2];
+			QDateTime tm=QDateTime::fromTime_t(date.toLongLong()).toUTC();
+			if(tz.size()==5){
+				int f=0;
+				if(tz[0]=='+')f=1;else
+				if(tz[0]=='-')f=-1;
+				tm=tm.addSecs(tz.mid(1,2).toInt(0,10)*3600*f+
+					tz.mid(3,2).toInt(0,10)*60*f);
+			}else tz="";
+			date=tm.toString("yyyy-MM-dd hh:mm:ss ")+tz;
+			m_verInfo.insert("Author",lst[1]);
+			m_verInfo.insert("Time",date);
+		}
+	}
+	if(rev.isEmpty())rev=lrev;
+	//get remote info
+	QString remote,remurl;
+	if(!lbranch.isEmpty() && procGit(gp+"config"+"-l",res,tgt,m_gitExe)){
+		//find the remote of the local branch
+		QString key="branch."+lbranch+".remote";
+		foreach(QString line,res){
+			QStringList lst=line.trimmed().split("=");
+			if(lst.size()!=2)continue;
+			if(lst[0]==key){
+				remote=lst[1];
+				break;
+			}
+		}
+		key="remote."+remote+".url";
+		if(!remote.isEmpty())
+		foreach(QString line,res){
+			QStringList lst=line.trimmed().split("=");
+			if(lst.size()!=2)continue;
+			if(lst[0]==key){
+				remurl=lst[1];
+				break;
+			}
+		}
+		if(!remurl.isEmpty())
+			m_verInfo.insert("RootURL",remurl);
+	}
+	//find path
+	QDir tdir(QDir(tgt).absolutePath());
+	QString path;
+	do{
+		if(tdir.entryList(QDir::Dirs|QDir::AllDirs|QDir::Hidden|QDir::System).contains(".git")){
+			break;
+		}else{
+			path=tdir.dirName()+(path.isEmpty()?"":"/"+path);
+		}
+	}while(tdir.cdUp());
+	//modification state
+	if(!procGit(gp+"status"+"-s"+".",res,tgt,m_gitExe))return false;
+	int mctr=0;
+	foreach(QString line,res){
+		if(!line.trimmed().isEmpty())mctr++;
+	}
+	//done: add to version info
+	m_verInfo.insert("System","git");
+	m_verInfo.insert("Path",path);
+	m_verInfo.insert("Number",rev);
+	m_verInfo.insert("LocallyModified",mctr?"modified":"unmodified");
+	return true;
 }
 
 static inline QString getLocalUser()
diff --git a/woc/qt/qtout.cpp b/woc/qt/qtout.cpp
index ec37dd1..b368f77 100644
--- a/woc/qt/qtout.cpp
+++ b/woc/qt/qtout.cpp
@@ -296,7 +296,7 @@ void WocQtOut::initVersionH()
 	}
 	vhf.write(QByteArray(HDRSTART).replace("%",m_prefix.toAscii()+"STATIC_VERSION_H"));
 	//generate functions for project's own values
-	QString data="#include <WOb>\n#include <QString>\n\n"
+	QString data="#include <WOb>\n#include <QString>\n#include <QMap>\n\n"
 		"static inline QString WOCgenerated_versionInfo(WOb::VersionInfo vi){\nswitch(vi){\n";
 	QString data2;
 	QMap<QString,QString> vm=WocProcessor::instance()->versionInfo();
-- 
1.7.2.5