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docs: Update help, add comments

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Serge Guzik 2019-02-11 16:40:28 +02:00
parent 143f9d2b43
commit f74f905f74
1 changed files with 26 additions and 28 deletions
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warp4j
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@ -2,40 +2,36 @@
function print_help {
echo
echo 'Usage: warp4j [options] <file.jar>'
echo 'Usage: warp4j [options] <app.jar>'
echo
echo 'Turn Java application into self-contained executable'
echo 'Turn JAR (java application archive) into self-contained executable'
echo
echo 'Options:'
echo ' --java-version <version>'
echo ' override JDK/JRE version'
echo ' examples: "11", "11.0", "11.0.2", "11.0.2+9"'
echo ' default: 11'
echo ' --no-optimize use JRE instead of optimized JDK'
echo ' by default jdeps and jlink are used to create'
echo ' optimized JDK for the partiular jar,'
echo ' JRE is always used for java 8'
echo ' --pull check if more recent JDK/JRE distro is available'
echo ' by default latest cached version that matches'
echo ' "--java-version" is used'
echo ' --target-linux create binary for Linux'
echo ' --target-macos create binary for macOS'
echo ' --target-windows create binary for Windows'
echo ' if no targets specified then create for all'
echo ' --jvm-impl jvm implementation: hotspot or openj9'
echo ' default: hotspot'
echo ' --jvm-options <options>'
echo ' passed to java like this:'
echo ' "java <options> -jar <jar file>"'
echo ' --launcher-shell <path to shell script>'
echo ' custom launcher for Linux and macOS'
echo ' (not implemented)'
echo ' --launcher-cmd <path to cmd script>'
echo ' custom launcher for Windows'
echo ' (not implemented)'
echo ' -j, --java-version <version>'
echo ' override JDK/JRE version'
echo ' examples: "11", "11.0", "11.0.2", "11.0.2+9"'
echo ' default: 11'
echo ' --no-optimize use JRE instead of optimized JDK'
echo ' by default jdeps and jlink are used to create'
echo ' optimized JDK for the partiular jar,'
echo ' JRE is always used for java 8'
echo ' --pull check if more recent JDK/JRE distro is available'
echo ' by default latest cached version that matches'
echo ' "--java-version" is used'
echo ' --target-linux create binary for Linux'
echo ' --target-macos create binary for macOS'
echo ' --target-windows create binary for Windows'
echo ' if no targets specified then create for all'
echo ' --jvm-impl jvm implementation: hotspot or openj9'
echo ' default: hotspot'
echo ' --jvm-options <options>'
echo ' passed to java like this:'
echo ' "java <options> -jar <jar file>"'
echo ' -h, --help show this help'
exit
}
# exit top level program from subshell
trap "exit 1" TERM
export TOP_PID=$$
function fail() {
@ -86,6 +82,7 @@ function check_deps() {
check_deps
# show help if no arguments specified
if [[ $# -eq 0 ]]; then
print_help
exit
@ -153,6 +150,7 @@ while [[ $# -gt 0 ]]; do
done
set -- "${POSITIONAL[@]}" # restore positional arguments
# apart from options only one argument is allowed
if [[ $# -gt 1 ]]; then
echo "Error: Too many arguments: $@, expecting only jar name" >&2
print_help