[SPARK-32443] Fix testCommandAvailable to use POSIX compatible `command -v`

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.1.3, 2.2.3, 2.3.4, 2.4.6, 3.0.0
• Fix Version/s: 3.1.0
• Component/s: Spark Core
• Assignee: Hyukjin Kwon
• Reporter: Dongjoon Hyun
• Created: 26/Jul/20 05:30
• Updated: 12/Dec/22 17:35
• Resolved: 27/Jul/20 19:03

Description

Currently, we run the command to check the existence. This is dangerous and doesn't work sometimes.

scala> sys.process.Process("cat").run().exitValue()
res0: Int = 0

scala> sys.process.Process("ls").run().exitValue()
LICENSE
NOTICE
bin
doc
lib
man
res1: Int = 0

scala> sys.process.Process("rm").run().exitValue()
usage: rm [-f | -i] [-dPRrvW] file ...
       unlink file
res4: Int = 64

scala> sys.process.Process("command -v rm").run().exitValue()
/bin/rm
res5: Int = 0

Issue Links

• links to: [Github] Pull Request #29241 (dongjoon-hyun)
• links to: [Github] Pull Request #29241 (dongjoon-hyun)