4afc228108
"command -v" is the POSIX compliant way to get the path to a command. It returns the path to the command if it exists and exits with a non-zero status when it does not, without any output. "which" is not POSIX and it can have various different effects. With Zsh, it says "python not found" on stdout. See: - https://pubs.opengroup.org/onlinepubs/009695399/utilities/command.html Signed-off-by: Vincent Bernat <vincent@bernat.ch>
105 lines
2.9 KiB
Text
105 lines
2.9 KiB
Text
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# usage: source hacking/env-setup [-q]
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# modifies environment for running Ansible from checkout
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# prepend a value to a potentially empty path variable
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# usage: prepend_path variable_name value
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prepend_path()
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{
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variable_name="$1"
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value="$2"
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old_value=$( eval "echo \$$variable_name" )
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if [ "x$old_value" != "x" ]; then
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value="$value:"
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fi
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export "$variable_name=$value$old_value"
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}
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# Default values for shell variables we use
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PYTHONPATH=${PYTHONPATH-""}
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PATH=${PATH-""}
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MANPATH=${MANPATH-$(manpath)}
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PYTHON=$(command -v python || command -v python3)
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PYTHON_BIN=${PYTHON_BIN-$PYTHON}
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verbosity=${1-info} # Defaults to `info' if unspecified
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if [ "$verbosity" = -q ]; then
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verbosity=silent
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fi
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# When run using source as directed, $0 gets set to bash, so we must use $BASH_SOURCE
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if [ -n "$BASH_SOURCE" ] ; then
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HACKING_DIR=$(dirname "$BASH_SOURCE")
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elif [ $(basename -- "$0") = "env-setup" ]; then
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HACKING_DIR=$(dirname "$0")
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# Works with ksh93 but not pdksh, have to eval to keep ash happy...
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elif [ -n "$KSH_VERSION" ] && echo $KSH_VERSION | grep -qv '^@(#)PD KSH'; then
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eval "HACKING_DIR=\$(dirname \"\${.sh.file}\")"
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else
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HACKING_DIR="$PWD/hacking"
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fi
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# The below is an alternative to readlink -fn which doesn't exist on macOS
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# Source: http://stackoverflow.com/a/1678636
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FULL_PATH=$($PYTHON_BIN -c "import os; print(os.path.realpath('$HACKING_DIR'))")
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export ANSIBLE_HOME="$(dirname "$FULL_PATH")"
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PREFIX_PYTHONPATH="$ANSIBLE_HOME/lib"
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PREFIX_PATH="$ANSIBLE_HOME/bin"
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PREFIX_MANPATH="$ANSIBLE_HOME/docs/man"
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expr "$PYTHONPATH" : "${PREFIX_PYTHONPATH}.*" > /dev/null || prepend_path PYTHONPATH "$PREFIX_PYTHONPATH"
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expr "$PATH" : "${PREFIX_PATH}.*" > /dev/null || prepend_path PATH "$PREFIX_PATH"
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expr "$MANPATH" : "${PREFIX_MANPATH}.*" > /dev/null || prepend_path MANPATH "$PREFIX_MANPATH"
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#
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# Generate egg_info so that pkg_resources works
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#
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# Do the work in a function so we don't repeat ourselves later
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gen_egg_info()
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{
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# check for current and past egg-info directory names
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if ls "$PREFIX_PYTHONPATH"/ansible*.egg-info >/dev/null 2>&1; then
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# bypass shell aliases with leading backslash
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# see https://github.com/ansible/ansible/pull/11967
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\rm -rf "$PREFIX_PYTHONPATH"/ansible*.egg-info
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fi
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$PYTHON_BIN setup.py egg_info
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}
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if [ "$ANSIBLE_HOME" != "$PWD" ] ; then
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current_dir="$PWD"
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else
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current_dir="$ANSIBLE_HOME"
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fi
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(
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cd "$ANSIBLE_HOME"
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if [ "$verbosity" = silent ] ; then
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gen_egg_info > /dev/null 2>&1 &
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find . -type f -name "*.pyc" -exec rm -f {} \; > /dev/null 2>&1
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else
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gen_egg_info
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find . -type f -name "*.pyc" -exec rm -f {} \;
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fi
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cd "$current_dir"
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)
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if [ "$verbosity" != silent ] ; then
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cat <<- EOF
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Setting up Ansible to run out of checkout...
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PATH=$PATH
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PYTHONPATH=$PYTHONPATH
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MANPATH=$MANPATH
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Remember, you may wish to specify your host file with -i
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Done!
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EOF
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fi
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