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-rwxr-xr-xtools/tox-venv189
1 files changed, 166 insertions, 23 deletions
diff --git a/tools/tox-venv b/tools/tox-venv
index 76ed5076..a5d21625 100755
--- a/tools/tox-venv
+++ b/tools/tox-venv
@@ -1,42 +1,185 @@
#!/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() {
- cat <<EOF
-Usage: ${0##*/} tox-environment [command [args]]
+ 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 \${SHELL:-/bin/sh}.
+ command defaults to 'cmd' (see below).
+
+ run with '--list' to show available environments
- invoke 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
-}
-list_toxes() {
- local td="$1" pre="$2" d=""
- ( cd "$tox_d" &&
- for d in *; do [ -f "$d/bin/activate" ] && echo "${pre}$d"; done)
+
+ if [ -f "$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
}
-[ $# -eq 0 ] && { Usage 1>&2; exit 1; }
-[ "$1" = "-h" -o "$1" = "--help" ] && { Usage; exit 0; }
+if [ -f tox.ini ]; then
+ tox_ini="$PWD/tox.ini"
+else
+ tox_ini="${0%/*}/../tox.ini"
+fi
-env="$1"
-shift
-tox_d="${0%/*}/../.tox"
-activate="$tox_d/$env/bin/activate"
+[ $# -eq 0 ] && { Usage "$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"
-[ -d "$tox_d" ] || fail "$tox_d: not a dir. maybe run 'tox'?"
+if [ "$1" = "-l" -o "$1" = "--list" ]; then
+ list_environments "$tox_ini"
+ exit
+fi
-[ "$env" = "-l" -o "$env" = "--list" ] && { list_toxes ; exit ; }
+nocreate="false"
+if [ "$1" = "--no-create" ]; then
+ nocreate="true"
+ shift
+fi
-if [ ! -f "$activate" ]; then
- error "$env: not a valid tox environment?"
- error "try one of:"
- list_toxes "$tox_d" " "
- fail
+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
. "$activate"
-[ "$#" -gt 0 ] || set -- ${SHELL:-/bin/bash}
+[ $# -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