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|
#!/bin/sh
# https://gist.github.com/smoser/2d4100a6a5d230ca937f
CR='
'
error() { echo "$@" 1>&2; }
fail() { [ $# -eq 0 ] || error "$@"; exit 1; }
get_env_dirs() {
# read 'tox --showconfig'. return list of
# envname:dir
local key="" equal="" val="" curenv="" out=""
while read key equal val; do
case "$key" in
"[testenv:"*)
curenv=${key#*:};
curenv=${curenv%%"]"*};
continue;;
esac
if [ "${key#*=}" != "$key" ]; then
# older tox shows key=value or key= value
# newer tox shows: key = value
key=${key%%=*}
val=${equal}
fi
[ "$key" = "envdir" ] || continue
out="${out:+${out}${CR}}${curenv}:$val"
done
echo "$out"
}
load_config() {
local tox_ini="$1" out="" envs=""
if [ "$tox_ini" = "${CACHED_ENVS_INI}" ]; then
_RET="$CACHED_ENVS"
return
fi
out=$(tox -c "$tox_ini" --showconfig) || return 1
envs=$(echo "$out" | get_env_dirs) || return 1
CACHED_ENVS="$envs"
CACHED_ENVS_INI="$tox_ini"
_RET="$envs"
}
list_environments() {
local tox_ini="$1" prefix=" " out="" envs="" oifs="$IFS"
load_config "$tox_ini" || return 1
envs="${_RET}"
IFS="$CR"
for d in ${envs}; do
env=${d%%:*}
dir=${d#*:}
[ -f "$dir/bin/activate" ] && s="*" || s=""
echo "${prefix}$env$s";
done
IFS="$oifs"
}
get_command() {
local tox_ini="$1" env="$2" out=""
shift 2
out=$(
sed -e ':x; /\\$/ { N; s/\\\n[ ]*//; tx };' "${tox_ini}" |
gawk '
$1 ~ /^\[testenv.*\]/ {
name=$1;
sub("\\[", "", name); sub(".*:", "", name);
sub("].*", "", name);
curenv=name; };
$1 == "basepython" && (name == "testenv" || name == n) { python=$3 }
$1 == "commands" && (name == "testenv" || name == n) {
sub("commands = ", ""); cmd = $0; };
END {
sub("{envpython}", python, cmd);
sub("{toxinidir}", toxinidir, cmd);
if (inargs == "") replacement = "\\1"
else replacement = inargs
cmd = gensub(/{posargs:?([^}]*)}/, replacement, "global", cmd)
print(cmd);
}' n="$env" toxinidir="$(dirname $tox_ini)" inargs="$*")
if [ -z "$out" ]; then
error "Failed to find command for $env in $tox_ini"
return 1
fi
echo "$out"
}
get_env_dir() {
local tox_ini="$1" env="$2" oifs="$IFS" t="" d="" envs=""
if [ "${TOX_VENV_SHORTCUT:-1}" != "0" ]; then
local stox_d="${tox_ini%/*}/.tox/${env}"
if [ -e "${stox_d}/bin/activate" ]; then
_RET="${stox_d}"
return
fi
fi
load_config "$tox_ini" && envs="$_RET" || return 1
IFS="$CR"
for t in $envs; do
[ "$env" = "${t%%:*}" ] && d="${t#*:}" && break
done
IFS=${oifs}
[ -n "$d" ] || return 1
_RET="$d"
}
Usage() {
local tox_ini="$1"
cat <<EOF
Usage: ${0##*/} [--no-create] tox-environment [command [args]]
run command with provided arguments in the provided tox environment
command defaults to 'cmd' (see below).
run with '--list' to show available environments
if 'command' above is literal 'cmd' or '-', then the 'command' will
be read from tox.ini. This allows you to do:
tox-venv py27 - tests/some/sub/dir
and have the 'command' read correctly and have that execute:
python -m nose tests/some/sub/dir
EOF
if [ -f "$tox_ini" ]; then
local oini=${tox_ini}
[ "${tox_ini}" -ef "$PWD/tox.ini" ] && oini="./tox.ini"
echo
echo "environments in $oini"
list_environments "$tox_ini"
fi
}
if [ -f tox.ini ]; then
tox_ini="$PWD/tox.ini"
else
tox_ini="${0%/*}/../tox.ini"
fi
[ $# -eq 0 ] && { Usage "$tox_ini" 1>&2; exit 1; }
[ "$1" = "-h" -o "$1" = "--help" ] && { Usage "$tox_ini"; exit 0; }
[ -f "$tox_ini" ] || fail "$tox_ini: did not find tox.ini"
if [ "$1" = "-l" -o "$1" = "--list" ]; then
list_environments "$tox_ini"
exit
fi
nocreate="false"
if [ "$1" = "--no-create" ]; then
nocreate="true"
shift
fi
env="$1"
shift
[ "$1" = "--" ] && shift
get_env_dir "$tox_ini" "$env" && activate="$_RET/bin/activate" || activate=""
if [ -z "$activate" -o ! -f "$activate" ]; then
if $nocreate; then
fail "tox env '$env' did not exist, and no-create specified"
elif [ -n "$activate" ]; 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_ini=$tox_ini"
error "try one of:"
list_environments "$tox_ini" 1>&2
fail
fi
fi
. "$activate"
[ $# -eq 0 ] && set -- cmd
if [ "$1" = "cmd" -o "$1" = "-" ]; then
shift
out=$(get_command "$tox_ini" "$env" "$@") || exit
eval set -- "$out"
fi
echo "inside tox:$env running: $*" 1>&2
debian_chroot="tox:$env" exec "$@"
# vi: ts=4 expandtab
|
