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#!/bin/bash
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#
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# Simple installation shell script for Python packages.
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#
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# Usage:
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# pkginstall PAKPREFIX [PYPACKAGE]
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#
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# PAKPREFIX: prefix of the package as distributed in the tarball.
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#
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# PYPACKAGE: name of the Python package as it will end up installed. If not
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# given, it defaults to PAKPREFIX.
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#
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#-----------------------------------------------------------------------------
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# Process command-line args
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#
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PAKPREFIX=$1
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PYPACKAGE=${2:-$PAKPREFIX}
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#-----------------------------------------------------------------------------
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# Configure main variables
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#
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# Defaults for variables that the .cfg file may override.
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PYTHON_DEFAULT=python
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PREFIX_DEFAULT=$HOME/usr/local
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# Read config file which may declare user values for these variables.
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source ./pkginstall.cfg
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# Set the variables we'll actually use, either from the config file or from our
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# defaults.
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PYTHON=${PYTHON-${PYTHON_DEFAULT}}
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PREFIX=${PREFIX-${PREFIX_DEFAULT}}
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#-----------------------------------------------------------------------------
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# 'Main' code begins
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#
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# Find the actual python executable path
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PYTHONX=$(which $PYTHON)
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if [[ ! -x $PYTHONX ]]; then
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echo "ERROR: no python executable found at given path: $PYTHON"
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echo "Aborting."
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exit 1
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fi
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# Python version information. PYTHONV holds a versioned string used to build
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# the site-packages path for the actual Python version we'll use.
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PYVER=$($PYTHONX -ESV 2>&1)
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PYVER_MINOR=${PYVER#Python }
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PYVER_MAJOR=${PYVER_MINOR:0:3}
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PYTHONV=python${PYVER_MAJOR}
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# Set prefixes and other variables for the installation path.
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SITEPKG=${PREFIX}/lib/${PYTHONV}/site-packages
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SITEPKG64=${PREFIX}/lib64/${PYTHONV}/site-packages
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# User diagnostics of current config
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echo "Configuration:"
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echo " PYTHON : $PYTHON"
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echo " PYTHONX : $PYTHONX"
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echo " PREFIX : $PREFIX"
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echo " SITEPKG : $SITEPKG"
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echo " SITEPKG64: $SITEPKG64"
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# Find tarball
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tarball=$(ls *$PAKPREFIX*.tar.*)
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if [[ -z $tarball ]]; then
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echo "ERROR: tarball not found for $PYPACKAGE"
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exit 1
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fi
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# Figure out the name of the directory and compression format to use to unpack
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pakdir=$(echo $tarball | awk -F '.tar.' '{print $1}')
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tarfmt=$(echo $tarball | awk -F '.tar.' '{print $2}')
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if [[ $tarfmt == "gz" ]]; then
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tarflag="z"
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else
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tarflag="j"
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fi
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# Unpack the tarball if needed
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if [[ ! -d $pakdir ]]; then
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echo "Unpacking tarball: $tarball"
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tar -x -${tarflag} -f $tarball
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if [[ ! -d $pakdir ]]; then
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echo "Tarball $tarball unpacked to unexpected path, aborting"
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exit 1
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fi
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fi
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# Remove existing ${PYPACKAGE} to make sure the build doesn't pick up spurious
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# things. We don't touch the bin/ dir or anything else because it's hard to
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# know what goes there in advance. But this should prevent most serious
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# problems.
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rm -rf $SITEPKG/${PYPACKAGE}
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rm -rf $SITEPKG/${PYPACKAGE}*.egg
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rm -rf $SITEPKG/${PYPACKAGE}*.egg-info
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rm -rf $SITEPKG64/${PYPACKAGE}
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rm -rf $SITEPKG64/${PYPACKAGE}*.egg
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rm -rf $SITEPKG64/${PYPACKAGE}*.egg-info
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# Make/install phase
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# Set python search path correctly
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export PYTHONPATH=$SITEPKG:$SITEPKG64:$PYTHONPATH
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# Ensure install dirs exist
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mkdir -p $SITEPKG
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mkdir -p $SITEPKG64
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cd ${pakdir}
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rm -rf build dist
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$PYTHONX setup.py clean
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time $PYTHONX setup.py install --prefix=$PREFIX
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