Add update.sh and update readme accordingly

README.md

@@ -15,16 +15,67 @@ https://cta-lapp.pages.in2p3.fr//PHOENIX_LIBS/PhoenixFileBinaryAnalyzer/
 # Requirements
 
 
-- c++ compiler >=5.3.1 
+- c++ compiler (tested with gcc 5,6,7,8,9,10 and clang 9,10)
 - cmake > 3
 - make
 - HDF5 C++
 
 # Installation for Users
 
-	$ git clone https://gitlab.in2p3.fr/CTA-LAPP/PHOENIX_LIBS/PhoenixFileBinaryAnalyzer.git
+```sh
+	$ git clone https://gitlab.in2p3.fr/CTA-LAPP/PHOENIX_LIBS/https://gitlab.in2p3.fr/CTA-LAPP/PHOENIX_LIBS/PhoenixFileBinaryAnalyzer.git
 	$ cd PhoenixFileBinaryAnalyzer
 	$ ./install.sh
+```
+
+Then **PhoenixFileBinaryAnalyzer** is installed in your $HOME/usr.
+
+
+If you prefer a customized install path you can do :
+
+```sh
+	$ git clone https://gitlab.in2p3.fr/CTA-LAPP/PHOENIX_LIBS/PhoenixFileBinaryAnalyzer.git
+	$ cd PhoenixFileBinaryAnalyzer
+	$ ./install.sh /your/install/path
+```
+
+If you prefer a customized install path with custom compilation you can do :
+
+```sh
+	$ git clone https://gitlab.in2p3.fr/CTA-LAPP/PHOENIX_LIBS/PhoenixFileBinaryAnalyzer.git
+	$ cd PhoenixFileBinaryAnalyzer
+	$ mkdir -p build
+	$ cd build
+	$ cmake .. -DCMAKE_INSTALL_PREFIX=/your/install/Path
+	$ make -j `nproc`
+	$ make install -j `nproc`
+```
+
+The **nproc** gives the number of cores of the computer. If you want a build on one core you can just type :
+
+```sh
+	$ make
+	$ make install
+```
+
+
+# Update PhoenixFileBinaryAnalyzer
+
+If you want to update the software :
+
+```sh
+	$ git clone https://gitlab.in2p3.fr/CTA-LAPP/PHOENIX_LIBS/PhoenixFileBinaryAnalyzer.git
+	$ cd PhoenixFileBinaryAnalyzer
+	$ ./update.sh
+```
+
+If you want to update the software with a custom install path :
+
+```sh
+	$ git clone https://gitlab.in2p3.fr/CTA-LAPP/PHOENIX_LIBS/PhoenixFileBinaryAnalyzer.git
+	$ cd PhoenixFileBinaryAnalyzer
+	$ ./update.sh /your/install/path
+```
 
 # Basic use
 

update.sh

+#/bin/bash
+
+INSTALL_PREFIX="$1"
+
+if [ -z "$1" ]
+then
+	if [ -z $CONDA_ENV_PATH ]
+	then
+		if [ -z $CONDA_PREFIX ]
+		then
+			INSTALL_PREFIX="$HOME/usr"
+		else
+			INSTALL_PREFIX=$CONDA_PREFIX
+		fi
+	else
+		INSTALL_PREFIX=$CONDA_ENV_PATH
+	fi
+fi
+
+git pull
+
+if [ -d build ]
+then
+	rm -fr build
+fi
+
+mkdir -p build
+cd build
+
+cmake .. -DCMAKE_INSTALL_PREFIX="$INSTALL_PREFIX" -DPHOENIX_FORCE_PULL_MODULE=yes
+make -j `nproc`
+make install -j `nproc`
+
+