Bug #14224: [Bug][Running a workflow] Correct shell quoting in command modal - Arvados Workbench 2 - Arvados

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Bug #14224

closed

[Bug][Running a workflow] Correct shell quoting in command modal

Added by Tom Clegg over 6 years ago. Updated 8 months ago.

Status:

Closed

Priority:

Normal

Assigned To:

Michał Kłobukowski

Category:

Target version:

sprint 9

Story points:

1.0

Release:

Arvados v1.4 - Q1/Q2 2019

Release relationship:

Auto

Description

Each element of the command array in a container request is one argument to exec, even if it contains spaces. Joining the elements with a space separator loses the distinction between spaces in arguments and spaces between arguments.

Suggest shell-quoting/escaping array elements that contain spaces and other special characters, to produce a string that is unambiguous and can be pasted into a shell prompt.

Examples:

command (JSON-encoded)	one possible shell-escaped version	output
`["sh", "-c", "echo $0", "OK"]`	`sh -c "echo \$0" OK`	OK
`["sh", "-c", "echo $(printf %s \"'\"'\"'\\\\ \| md5sum \| head -c8)"]`	`sh -c echo\ \$$printf\ %s\ \"\'\"\'\"\'\\\\\ \\|\ md5sum\ \\|\ head\ -c8$`	9a33fb47
`["sh", "-c", "echo $(printf %s \"'\"'\"'\\\\ \| md5sum \| head -c8)"]`	`sh -c $'echo $(printf %s \"\'\"\'\"\'\\\\ \| md5sum \| head -c8)'`	9a33fb47
`["echo", "\u0009"]`	`echo '\t'`	* *