embulk help message show the default path even if I set embulk_home explicitly.

[hiroyuki-sato]

Issue Type: Bug Report

• Write the following environmental information.
  • OS version: macOS 12.3.1
  • Java version: 1.8.0_331
  • Embulk version: 0.10.35

This command specifies embulk_home and jruby path and just shows the embulk help message.

java -jar /path/to/embulk/embulk-0.10.35.jar \
  -X embulk_home=/tmp/embulk_with_space \
  -X jruby file:///path/to/jruby/jruby-complete-9.3.4.0.jar

This command output the following messages.
It contains embulk_home is set by the location of embulk.properties found in: /Users/user/.embulk even I set embulk_home path explicitly.
A user may confuse the path of embulk_home.

Usage: embulk [common options] <command> [command options]

Commands:
   run          Run a bulk load transaction.
   cleanup      Cleanup resume state.
   preview      Dry-run a bulk load transaction, and preview it.
   guess        Guess missing parameters to complete configuration.
   example      Create example files for a quick trial of Embulk.
   selfupdate   Upgrade Embulk to the specified version.
   gem          Run "gem" to install a RubyGem plugin.
   mkbundle     Create a new plugin bundle environment.
   bundle       Update a plugin bundle environment.
   new          Generate new plugin template

Common options:
   -h, --help                Print help
   -version, --version       Show Embulk version
   -l, --log-level LEVEL     Set log level (error, warn, info, debug, trace)
       --log-path PATH       Output log messages to a file (default: -)
   -X KEY=VALUE              Set Embulk system properties
   -R OPTION                 Command-line option for JRuby. (Only '--dev')

2022-04-22 10:50:11.566 +0900 [INFO] (main): embulk_home is set by the location of embulk.properties found in: /Users/user/.embulk
2022-04-22 10:50:11.569 +0900 [INFO] (main): m2_repo is set as a sub directory of embulk_home: /Users/user/.embulk/lib/m2/repository
2022-04-22 10:50:11.569 +0900 [INFO] (main): gem_home is set as a sub directory of embulk_home: /Users/user/.embulk/lib/gems
2022-04-22 10:50:11.569 +0900 [INFO] (main): gem_path is set empty.

When I use some command (i.e: embulk gem install) the message outputs the expected path.