x/cloud-init
Code Issues Proposed changes

tools/tox-venv: support running other than ./tools/tox-venv

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this improves tox-venv to:
a.) consider ./.tox as the tox dir
    useful if you run tox-venv from ~/bin and you're in cloud-init dir
    with .tox there.
    if no tox.ini and .tox are in this dir, fall back to using
    the old look ${0%/*}/../.tox

b.) support '--list'
    ie, running tox-venv adds support to tox-venv so you can list environments
    explicitly

c.) outputs the list of available environments with --help
    a '*' at the end indicates the environment appears presnt.

d.) any environment not present will be created with unless '--no-create'

e.) 4 spaces instead of 3 for indentation consistency with python

Example usage:
  $ tox-venv docs python --version
  Python 3.4.3+

Change-Id: I8a3d07c27fc3e4e41421e59ac5f47628a3612b83
This commit is contained in:
Scott Moser 2015-06-25 11:09:58 -04:00 committed by Joshua Harlow
parent bf5c513472
commit 37927ffd9c
1 changed files with 65 additions and 15 deletions
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80
tools/tox-venv
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@ -1,30 +1,80 @@
#!/bin/sh
# vi: ts=4 expandtab
error() { echo "$@" 1>&2; }
fail() { [ $# -eq 0 ] || error "$@"; exit 1; }
Usage() {
cat <<EOF
Usage: ${0##*/} tox-environment [command [args]]
run command with provided arguments in the provided tox environment
command defaults to \${SHELL:-/bin/sh}.
EOF
list_environments() {
local tox_d="$1" tox_ini="$2" prefix=" "
envs=$(tox -c "$tox_ini" --listenvs) || return 1
(
cd "$tox_d" &&
for d in ${envs}; do
[ -f "$d/bin/activate" ] && s="*" || s=""
echo "${prefix}$d$s";
done
)
}
[ $# -eq 0 ] && { Usage 1>&2; exit 1; }
[ "$1" = "-h" -o "$1" = "--help" ] && { Usage; exit 0; }
Usage() {
local tox_d="$1" tox_ini="$2"
cat <<EOF
Usage: ${0##*/} [--no-create] tox-environment [command [args]]
run command with provided arguments in the provided tox environment
command defaults to \${SHELL:-/bin/sh}.
run with '--list' to show available environments
EOF
if [ -d "$tox_d" -a -f "$tox_ini" ]; then
echo
echo "existing environments in $tox_d"
list_environments "$tox_d" "$tox_ini"
fi
}
if [ -f tox.ini -a -d .tox ]; then
tox_d="./.tox"
tox_ini="$PWD/tox.ini"
else
tox_d="${0%/*}/../.tox"
tox_ini="${0%/*}/../tox.ini"
fi
[ $# -eq 0 ] && { Usage "$tox_d" "$tox_ini" 1>&2; exit 1; }
[ "$1" = "-h" -o "$1" = "--help" ] && { Usage "$tox_d" "$tox_ini"; exit 0; }
[ -d "$tox_d" ] || fail "$tox_d: not a dir. maybe run 'tox'?"
[ -f "$tox_ini" ] || fail "$tox_ini: did not find tox.ini"
if [ "$1" = "-l" -o "$1" = "--list" ]; then
list_environments "$tox_d" "$tox_ini"
exit
fi
nocreate="false"
if [ "$1" = "--no-create" ]; then
nocreate="true"
shift
fi
env="$1"
shift
tox_d="${0%/*}/../.tox"
activate="$tox_d/$env/bin/activate"
[ -d "$tox_d" ] || fail "$tox_d: not a dir. maybe run 'tox'?"
if [ ! -f "$activate" ]; then
error "$env: not a valid tox environment?"
error "try one of:"
( cd "$tox_d" &&
for d in *; do [ -f "$d/bin/activate" ] && error " $d"; done )
fail
if $nocreate; then
fail "tox env '$env' did not exist, and no-create specified"
elif list_environments "$tox_d" "$tox_ini" | grep -q " $env$"; then
error "attempting to create $env:"
error " tox -c $tox_ini --recreate --notest -e $env"
tox -c "$tox_ini" --recreate --notest -e "$env" ||
fail "failed creation of env $env"
else
error "$env: not a valid tox environment?"
error "found tox_d=$tox_d"
error "try one of:"
list_environments "$tox_d" "$tox_ini" 1>&2
fail
fi
fi
. "$activate"