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·543 lines (467 loc) · 18.8 KB
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#!/usr/bin/env bash
#
# A more capable sbt runner, coincidentally also called sbt.
# Author: Paul Phillips <paulp@improving.org>
# todo - make this dynamic
declare -r sbt_release_version="0.13.8"
declare -r sbt_unreleased_version="0.13.9-M1"
declare -r buildProps="project/build.properties"
declare sbt_jar sbt_dir sbt_create sbt_version
declare scala_version sbt_explicit_version
declare verbose noshare batch trace_level log_level
declare sbt_saved_stty debugUs
echoerr () { echo >&2 "$@"; }
vlog () { [[ -n "$verbose" ]] && echoerr "$@"; }
# spaces are possible, e.g. sbt.version = 0.13.0
build_props_sbt () {
[[ -r "$buildProps" ]] && \
grep '^sbt\.version' "$buildProps" | tr '=\r' ' ' | awk '{ print $2; }'
}
update_build_props_sbt () {
local ver="$1"
local old="$(build_props_sbt)"
[[ -r "$buildProps" ]] && [[ "$ver" != "$old" ]] && {
perl -pi -e "s/^sbt\.version\b.*\$/sbt.version=${ver}/" "$buildProps"
grep -q '^sbt.version[ =]' "$buildProps" || printf "\nsbt.version=%s\n" "$ver" >> "$buildProps"
vlog "!!!"
vlog "!!! Updated file $buildProps setting sbt.version to: $ver"
vlog "!!! Previous value was: $old"
vlog "!!!"
}
}
set_sbt_version () {
sbt_version="${sbt_explicit_version:-$(build_props_sbt)}"
[[ -n "$sbt_version" ]] || sbt_version=$sbt_release_version
export sbt_version
}
# restore stty settings (echo in particular)
onSbtRunnerExit() {
[[ -n "$sbt_saved_stty" ]] || return
vlog ""
vlog "restoring stty: $sbt_saved_stty"
stty "$sbt_saved_stty"
unset sbt_saved_stty
}
# save stty and trap exit, to ensure echo is reenabled if we are interrupted.
trap onSbtRunnerExit EXIT
sbt_saved_stty="$(stty -g 2>/dev/null)"
vlog "Saved stty: $sbt_saved_stty"
# this seems to cover the bases on OSX, and someone will
# have to tell me about the others.
get_script_path () {
local path="$1"
[[ -L "$path" ]] || { echo "$path" ; return; }
local target="$(readlink "$path")"
if [[ "${target:0:1}" == "/" ]]; then
echo "$target"
else
echo "${path%/*}/$target"
fi
}
die() {
echo "Aborting: $@"
exit 1
}
make_url () {
version="$1"
case "$version" in
0.7.*) echo "http://simple-build-tool.googlecode.com/files/sbt-launch-0.7.7.jar" ;;
0.10.* ) echo "$sbt_launch_repo/org.scala-tools.sbt/sbt-launch/$version/sbt-launch.jar" ;;
0.11.[12]) echo "$sbt_launch_repo/org.scala-tools.sbt/sbt-launch/$version/sbt-launch.jar" ;;
*) echo "$sbt_launch_repo/org.scala-sbt/sbt-launch/$version/sbt-launch.jar" ;;
esac
}
init_default_option_file () {
local overriding_var="${!1}"
local default_file="$2"
if [[ ! -r "$default_file" && "$overriding_var" =~ ^@(.*)$ ]]; then
local envvar_file="${BASH_REMATCH[1]}"
if [[ -r "$envvar_file" ]]; then
default_file="$envvar_file"
fi
fi
echo "$default_file"
}
declare -r cms_opts="-XX:+CMSClassUnloadingEnabled -XX:+UseConcMarkSweepGC"
declare -r jit_opts="-XX:ReservedCodeCacheSize=256m -XX:+TieredCompilation"
declare -r default_jvm_opts_common="-Xms512m -Xmx2048m -Xss2m $jit_opts $cms_opts"
declare -r noshare_opts="-Dsbt.global.base=project/.sbtboot -Dsbt.boot.directory=project/.boot -Dsbt.ivy.home=project/.ivy"
declare -r latest_28="2.8.2"
declare -r latest_29="2.9.3"
declare -r latest_210="2.10.5"
declare -r latest_211="2.11.7"
declare -r script_path="$(get_script_path "$BASH_SOURCE")"
declare -r script_name="${script_path##*/}"
# some non-read-onlies set with defaults
declare java_cmd="java"
declare sbt_opts_file="$(init_default_option_file SBT_OPTS .sbtopts)"
declare jvm_opts_file="$(init_default_option_file JVM_OPTS .jvmopts)"
declare sbt_launch_repo="http://repo.typesafe.com/typesafe/ivy-releases"
# pull -J and -D options to give to java.
declare -a residual_args
declare -a java_args
declare -a scalac_args
declare -a sbt_commands
# args to jvm/sbt via files or environment variables
declare -a extra_jvm_opts extra_sbt_opts
addJava () {
vlog "[addJava] arg = '$1'"
java_args+=("$1")
}
addSbt () {
vlog "[addSbt] arg = '$1'"
sbt_commands+=("$1")
}
setThisBuild () {
vlog "[addBuild] args = '$@'"
local key="$1" && shift
addSbt "set $key in ThisBuild := $@"
}
addScalac () {
vlog "[addScalac] arg = '$1'"
scalac_args+=("$1")
}
addResidual () {
vlog "[residual] arg = '$1'"
residual_args+=("$1")
}
addResolver () {
addSbt "set resolvers += $1"
}
addDebugger () {
addJava "-Xdebug"
addJava "-Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=$1"
}
setScalaVersion () {
[[ "$1" == *"-SNAPSHOT" ]] && addResolver 'Resolver.sonatypeRepo("snapshots")'
addSbt "++ $1"
}
setJavaHome () {
java_cmd="$1/bin/java"
setThisBuild javaHome "Some(file(\"$1\"))"
export JAVA_HOME="$1"
export JDK_HOME="$1"
export PATH="$JAVA_HOME/bin:$PATH"
}
setJavaHomeQuietly () {
addSbt warn
setJavaHome "$1"
addSbt info
}
# if set, use JDK_HOME/JAVA_HOME over java found in path
if [[ -e "$JDK_HOME/lib/tools.jar" ]]; then
setJavaHomeQuietly "$JDK_HOME"
elif [[ -e "$JAVA_HOME/bin/java" ]]; then
setJavaHomeQuietly "$JAVA_HOME"
fi
# directory to store sbt launchers
declare sbt_launch_dir="$HOME/.sbt/launchers"
[[ -d "$sbt_launch_dir" ]] || mkdir -p "$sbt_launch_dir"
[[ -w "$sbt_launch_dir" ]] || sbt_launch_dir="$(mktemp -d -t sbt_extras_launchers.XXXXXX)"
java_version () {
local version=$("$java_cmd" -version 2>&1 | grep -E -e '(java|openjdk) version' | awk '{ print $3 }' | tr -d \")
vlog "Detected Java version: $version"
echo "${version:2:1}"
}
# MaxPermSize critical on pre-8 jvms but incurs noisy warning on 8+
default_jvm_opts () {
local v="$(java_version)"
if [[ $v -ge 8 ]]; then
echo "$default_jvm_opts_common"
else
echo "-XX:MaxPermSize=384m $default_jvm_opts_common"
fi
}
build_props_scala () {
if [[ -r "$buildProps" ]]; then
versionLine="$(grep '^build.scala.versions' "$buildProps")"
versionString="${versionLine##build.scala.versions=}"
echo "${versionString%% .*}"
fi
}
execRunner () {
# print the arguments one to a line, quoting any containing spaces
vlog "# Executing command line:" && {
for arg; do
if [[ -n "$arg" ]]; then
if printf "%s\n" "$arg" | grep -q ' '; then
printf >&2 "\"%s\"\n" "$arg"
else
printf >&2 "%s\n" "$arg"
fi
fi
done
vlog ""
}
[[ -n "$batch" ]] && exec </dev/null
exec "$@"
}
jar_url () {
make_url "$1"
}
jar_file () {
echo "$sbt_launch_dir/$1/sbt-launch.jar"
}
download_url () {
local url="$1"
local jar="$2"
echoerr "Downloading sbt launcher for $sbt_version:"
echoerr " From $url"
echoerr " To $jar"
mkdir -p "${jar%/*}" && {
if which curl >/dev/null; then
curl --fail --silent --location "$url" --output "$jar"
elif which wget >/dev/null; then
wget --quiet -O "$jar" "$url"
fi
} && [[ -r "$jar" ]]
}
acquire_sbt_jar () {
sbt_url="$(jar_url "$sbt_version")"
sbt_jar="$(jar_file "$sbt_version")"
[[ -r "$sbt_jar" ]] || download_url "$sbt_url" "$sbt_jar"
}
usage () {
cat <<EOM
Usage: $script_name [options]
Note that options which are passed along to sbt begin with -- whereas
options to this runner use a single dash. Any sbt command can be scheduled
to run first by prefixing the command with --, so --warn, --error and so on
are not special.
Output filtering: if there is a file in the home directory called .sbtignore
and this is not an interactive sbt session, the file is treated as a list of
bash regular expressions. Output lines which match any regex are not echoed.
One can see exactly which lines would have been suppressed by starting this
runner with the -x option.
-h | -help print this message
-v verbose operation (this runner is chattier)
-d, -w, -q aliases for --debug, --warn, --error (q means quiet)
-x debug this script
-trace <level> display stack traces with a max of <level> frames (default: -1, traces suppressed)
-debug-inc enable debugging log for the incremental compiler
-no-colors disable ANSI color codes
-sbt-create start sbt even if current directory contains no sbt project
-sbt-dir <path> path to global settings/plugins directory (default: ~/.sbt/<version>)
-sbt-boot <path> path to shared boot directory (default: ~/.sbt/boot in 0.11+)
-ivy <path> path to local Ivy repository (default: ~/.ivy2)
-no-share use all local caches; no sharing
-offline put sbt in offline mode
-jvm-debug <port> Turn on JVM debugging, open at the given port.
-batch Disable interactive mode
-prompt <expr> Set the sbt prompt; in expr, 's' is the State and 'e' is Extracted
# sbt version (default: sbt.version from $buildProps if present, otherwise $sbt_release_version)
-sbt-force-latest force the use of the latest release of sbt: $sbt_release_version
-sbt-version <version> use the specified version of sbt (default: $sbt_release_version)
-sbt-dev use the latest pre-release version of sbt: $sbt_unreleased_version
-sbt-jar <path> use the specified jar as the sbt launcher
-sbt-launch-dir <path> directory to hold sbt launchers (default: ~/.sbt/launchers)
-sbt-launch-repo <url> repo url for downloading sbt launcher jar (default: $sbt_launch_repo)
# scala version (default: as chosen by sbt)
-28 use $latest_28
-29 use $latest_29
-210 use $latest_210
-211 use $latest_211
-scala-home <path> use the scala build at the specified directory
-scala-version <version> use the specified version of scala
-binary-version <version> use the specified scala version when searching for dependencies
# java version (default: java from PATH, currently $(java -version 2>&1 | grep version))
-java-home <path> alternate JAVA_HOME
# passing options to the jvm - note it does NOT use JAVA_OPTS due to pollution
# The default set is used if JVM_OPTS is unset and no -jvm-opts file is found
<default> $(default_jvm_opts)
JVM_OPTS environment variable holding either the jvm args directly, or
the reference to a file containing jvm args if given path is prepended by '@' (e.g. '@/etc/jvmopts')
Note: "@"-file is overridden by local '.jvmopts' or '-jvm-opts' argument.
-jvm-opts <path> file containing jvm args (if not given, .jvmopts in project root is used if present)
-Dkey=val pass -Dkey=val directly to the jvm
-J-X pass option -X directly to the jvm (-J is stripped)
# passing options to sbt, OR to this runner
SBT_OPTS environment variable holding either the sbt args directly, or
the reference to a file containing sbt args if given path is prepended by '@' (e.g. '@/etc/sbtopts')
Note: "@"-file is overridden by local '.sbtopts' or '-sbt-opts' argument.
-sbt-opts <path> file containing sbt args (if not given, .sbtopts in project root is used if present)
-S-X add -X to sbt's scalacOptions (-S is stripped)
EOM
}
process_args ()
{
require_arg () {
local type="$1"
local opt="$2"
local arg="$3"
if [[ -z "$arg" ]] || [[ "${arg:0:1}" == "-" ]]; then
die "$opt requires <$type> argument"
fi
}
while [[ $# -gt 0 ]]; do
case "$1" in
-h|-help) usage; exit 1 ;;
-v) verbose=true && shift ;;
-d) addSbt "--debug" && addSbt debug && shift ;;
-w) addSbt "--warn" && addSbt warn && shift ;;
-q) addSbt "--error" && addSbt error && shift ;;
-x) debugUs=true && shift ;;
-trace) require_arg integer "$1" "$2" && trace_level="$2" && shift 2 ;;
-ivy) require_arg path "$1" "$2" && addJava "-Dsbt.ivy.home=$2" && shift 2 ;;
-no-colors) addJava "-Dsbt.log.noformat=true" && shift ;;
-no-share) noshare=true && shift ;;
-sbt-boot) require_arg path "$1" "$2" && addJava "-Dsbt.boot.directory=$2" && shift 2 ;;
-sbt-dir) require_arg path "$1" "$2" && sbt_dir="$2" && shift 2 ;;
-debug-inc) addJava "-Dxsbt.inc.debug=true" && shift ;;
-offline) addSbt "set offline := true" && shift ;;
-jvm-debug) require_arg port "$1" "$2" && addDebugger "$2" && shift 2 ;;
-batch) batch=true && shift ;;
-prompt) require_arg "expr" "$1" "$2" && setThisBuild shellPrompt "(s => { val e = Project.extract(s) ; $2 })" && shift 2 ;;
-sbt-create) sbt_create=true && shift ;;
-sbt-jar) require_arg path "$1" "$2" && sbt_jar="$2" && shift 2 ;;
-sbt-version) require_arg version "$1" "$2" && sbt_explicit_version="$2" && shift 2 ;;
-sbt-force-latest) sbt_explicit_version="$sbt_release_version" && shift ;;
-sbt-dev) sbt_explicit_version="$sbt_unreleased_version" && shift ;;
-sbt-launch-dir) require_arg path "$1" "$2" && sbt_launch_dir="$2" && shift 2 ;;
-sbt-launch-repo) require_arg path "$1" &qu
8000
ot;$2" && sbt_launch_repo="$2" && shift 2 ;;
-scala-version) require_arg version "$1" "$2" && setScalaVersion "$2" && shift 2 ;;
-binary-version) require_arg version "$1" "$2" && setThisBuild scalaBinaryVersion "\"$2\"" && shift 2 ;;
-scala-home) require_arg path "$1" "$2" && setThisBuild scalaHome "Some(file(\"$2\"))" && shift 2 ;;
-java-home) require_arg path "$1" "$2" && setJavaHome "$2" && shift 2 ;;
-sbt-opts) require_arg path "$1" "$2" && sbt_opts_file="$2" && shift 2 ;;
-jvm-opts) require_arg path "$1" "$2" && jvm_opts_file="$2" && shift 2 ;;
-D*) addJava "$1" && shift ;;
-J*) addJava "${1:2}" && shift ;;
-S*) addScalac "${1:2}" && shift ;;
-28) setScalaVersion "$latest_28" && shift ;;
-29) setScalaVersion "$latest_29" && shift ;;
-210) setScalaVersion "$latest_210" && shift ;;
-211) setScalaVersion "$latest_211" && shift ;;
--debug) addSbt debug && addResidual "$1" && shift ;;
--warn) addSbt warn && addResidual "$1" && shift ;;
--error) addSbt error && addResidual "$1" && shift ;;
*) addResidual "$1" && shift ;;
esac
done
}
# process the direct command line arguments
process_args "$@"
# skip #-styled comments and blank lines
readConfigFile() {
while read line; do
[[ $line =~ ^# ]] || [[ -z $line ]] || echo "$line"
done < "$1"
}
# if there are file/environment sbt_opts, process again so we
# can supply args to this runner
if [[ -r "$sbt_opts_file" ]]; then
vlog "Using sbt options defined in file $sbt_opts_file"
while read opt; do extra_sbt_opts+=("$opt"); done < <(readConfigFile "$sbt_opts_file")
elif [[ -n "$SBT_OPTS" && ! ("$SBT_OPTS" =~ ^@.*) ]]; then
vlog "Using sbt options defined in variable \$SBT_OPTS"
extra_sbt_opts=( $SBT_OPTS )
else
vlog "No extra sbt options have been defined"
fi
[[ -n "${extra_sbt_opts[*]}" ]] && process_args "${extra_sbt_opts[@]}"
# reset "$@" to the residual args
set -- "${residual_args[@]}"
argumentCount=$#
# set sbt version
set_sbt_version
# only exists in 0.12+
setTraceLevel() {
case "$sbt_version" in
"0.7."* | "0.10."* | "0.11."* ) echoerr "Cannot set trace level in sbt version $sbt_version" ;;
*) setThisBuild traceLevel $trace_level ;;
esac
}
# set scalacOptions if we were given any -S opts
[[ ${#scalac_args[@]} -eq 0 ]] || addSbt "set scalacOptions in ThisBuild += \"${scalac_args[@]}\""
# Update build.properties on disk to set explicit version - sbt gives us no choice
[[ -n "$sbt_explicit_version" ]] && update_build_props_sbt "$sbt_explicit_version"
vlog "Detected sbt version $sbt_version"
[[ -n "$scala_version" ]] && vlog "Overriding scala version to $scala_version"
# no args - alert them there's stuff in here
(( argumentCount > 0 )) || {
vlog "Starting $script_name: invoke with -help for other options"
residual_args=( shell )
}
# verify this is an sbt dir or -create was given
[[ -r ./build.sbt || -d ./project || -n "$sbt_create" ]] || {
cat <<EOM
$(pwd) doesn't appear to be an sbt project.
If you want to start sbt anyway, run:
$0 -sbt-create
EOM
exit 1
}
# pick up completion if present; todo
[[ -r .sbt_completion.sh ]] && source .sbt_completion.sh
# no jar? download it.
[[ -r "$sbt_jar" ]] || acquire_sbt_jar || {
# still no jar? uh-oh.
echo "Download failed. Obtain the jar manually and place it at $sbt_jar"
exit 1
}
if [[ -n "$noshare" ]]; then
for opt in ${noshare_opts}; do
addJava "$opt"
done
else
case "$sbt_version" in
"0.7."* | "0.10."* | "0.11."* | "0.12."* )
[[ -n "$sbt_dir" ]] || {
sbt_dir="$HOME/.sbt/$sbt_version"
vlog "Using $sbt_dir as sbt dir, -sbt-dir to override."
}
;;
esac
if [[ -n "$sbt_dir" ]]; then
addJava "-Dsbt.global.base=$sbt_dir"
fi
fi
if [[ -r "$jvm_opts_file" ]]; then
vlog "Using jvm options defined in file $jvm_opts_file"
while read opt; do extra_jvm_opts+=("$opt"); done < <(readConfigFile "$jvm_opts_file")
elif [[ -n "$JVM_OPTS" && ! ("$JVM_OPTS" =~ ^@.*) ]]; then
vlog "Using jvm options defined in \$JVM_OPTS variable"
extra_jvm_opts=( $JVM_OPTS )
else
vlog "Using default jvm options"
extra_jvm_opts=( $(default_jvm_opts) )
fi
# traceLevel is 0.12+
[[ -n "$trace_level" ]] && setTraceLevel
main () {
execRunner "$java_cmd" \
"${extra_jvm_opts[@]}" \
"${java_args[@]}" \
-jar "$sbt_jar" \
"${sbt_commands[@]}" \
"${residual_args[@]}"
}
# sbt inserts this string on certain lines when formatting is enabled:
# val OverwriteLine = "\r\u001BM\u001B[2K"
# ...in order not to spam the console with a million "Resolving" lines.
# Unfortunately that makes it that much harder to work with when
# we're not going to print those lines anyway. We strip that bit of
# line noise, but leave the other codes to preserve color.
mainFiltered () {
local ansiOverwrite='\r\x1BM\x1B[2K'
local excludeRegex=$(egrep -v '^#|^$' ~/.sbtignore | paste -sd'|' -)
echoLine () {
local line="$1"
local line1="$(echo "$line" | sed -r 's/\r\x1BM\x1B\[2K//g')" # This strips the OverwriteLine code.
local line2="$(echo "$line1" | sed -r 's/\x1B\[[0-9;]*[JKmsu]//g')" # This strips all codes - we test regexes against this.
if [[ $line2 =~ $excludeRegex ]]; then
[[ -n $debugUs ]] && echo "[X] $line1"
else
[[ -n $debugUs ]] && echo " $line1" || echo "$line1"
fi
}
echoLine "Starting sbt with output filtering enabled."
main | while read -r line; do echoLine "$line"; done
}
# Only filter if there's a filter file and we don't see a known interactive command.
# Obviously this is super ad hoc but I don't know how to improve on it. Testing whether
# stdin is a terminal is useless because most of my use cases for this filtering are
# exactly when I'm at a terminal, running sbt non-interactively.
shouldFilter () { [[ -f ~/.sbtignore ]] && ! egrep -q '\b(shell|console|consoleProject)\b' <<<"${residual_args[@]}"; }
# run sbt
if shouldFilter; then mainFiltered; else main; fi