oauth2_proxy/configure
Fabian Holler 1c16c2c055 build: fix: configure fails if GOPATH environment variable not set
If the GOPATH enviroment variable was not set, go uses the default
GOPATH (~/go/).

The configure script was only checking if the GOPATH environment
is set. If it wasn't the script was failing.

Instead of checking if the GOPATH environment variable is set, check if
"go env GOPATH" returns a non-emtpy string.
2019-02-25 10:48:19 +01:00

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#!/usr/bin/env bash
RED='\033[0;31m'
GREEN='\033[0;32m'
BLUE='\033[0;34m'
NC='\033[0m'
declare -A tools=()
declare -A desired=()
for arg in "$@"; do
case ${arg%%=*} in
"--with-go")
desired[go]="${arg##*=}"
;;
"--with-dep")
desired[dep]="${arg##*=}"
;;
"--help")
printf "${GREEN}$0${NC}\n"
printf " available options:\n"
printf " --with-dep=${BLUE}<path_to_dep_binary>${NC}\n"
printf " --with-go=${BLUE}<path_to_go_binary>${NC}\n"
exit 0
;;
*)
echo "Unknown option: $arg"
exit 2
;;
esac
done
vercomp () {
if [[ $1 == $2 ]]
then
return 0
fi
local IFS=.
local i ver1=($1) ver2=($2)
# fill empty fields in ver1 with zeros
for ((i=${#ver1[@]}; i<${#ver2[@]}; i++))
do
ver1[i]=0
done
for ((i=0; i<${#ver1[@]}; i++))
do
if [[ -z ${ver2[i]} ]]
then
# fill empty fields in ver2 with zeros
ver2[i]=0
fi
if ((10#${ver1[i]} > 10#${ver2[i]}))
then
return 1
fi
if ((10#${ver1[i]} < 10#${ver2[i]}))
then
return 2
fi
done
return 0
}
check_for() {
echo -n "Checking for $1... "
if ! [ -z "${desired[$1]}" ]; then
TOOL_PATH="${desired[$1]}"
else
TOOL_PATH=$(command -v $1)
fi
if ! [ -x "$TOOL_PATH" -a -f "$TOOL_PATH" ]; then
printf "${RED}not found${NC}\n"
cd -
exit 1
else
printf "${GREEN}found${NC}\n"
tools[$1]=$TOOL_PATH
fi
}
check_go_version() {
echo -n "Checking go version... "
GO_VERSION=$(${tools[go]} version | ${tools[awk]} '{where = match($0, /[0-9]\.[0-9]+\.[0-9]*/); if (where != 0) print substr($0, RSTART, RLENGTH)}')
vercomp $GO_VERSION 1.10
case $? in
0) ;&
1)
printf "${GREEN}"
echo $GO_VERSION
printf "${NC}"
;;
2)
printf "${RED}"
echo "$GO_VERSION < 1.10"
exit 1
;;
esac
VERSION=$(${tools[go]} version | ${tools[awk]} '{print $3}')
tools["go_version"]="${VERSION}"
}
check_docker_version() {
echo -n "Checking docker version... "
DOCKER_VERSION=$(${tools[docker]} version | ${tools[awk]})
}
check_go_env() {
echo -n "Checking \$GOPATH... "
GOPATH="$(go env GOPATH)"
if [ -z "$GOPATH" ]; then
printf "${RED}invalid${NC} - GOPATH not set\n"
exit 1
fi
printf "${GREEN}valid${NC} - $GOPATH\n"
}
cd ${0%/*}
if [ ! -f .env ]; then
rm .env
fi
check_for make
check_for awk
check_for go
check_go_version
check_go_env
check_for dep
echo
cat <<- EOF > .env
MAKE := "${tools[make]}"
GO := "${tools[go]}"
GO_VERSION := ${tools[go_version]}
DEP := "${tools[dep]}"
EOF
echo "Environment configuration written to .env"
cd - > /dev/null