greple -Mjq

NAME

greple -Mjq - greple module to search JSON data with jq

SYNOPSIS

greple -Mjq –glob JSON-DATA –IN label pattern

VERSION

Version 0.05

DESCRIPTION

This is an experimental module for App::Greple to search JSON formatted text using jq(1) as a backend.

Search top level json object which includes both Marvin and Zaphod somewhere in its text representation.

greple -Mjq 'Marvin Zaphod'

You can search object .commit.author.name includes Marvin like this:

greple -Mjq --IN .commit.author.name Marvin

Search first name field including Marvin under .commit:

greple -Mjq --IN .commit..name Marvin

Search any author.name field including Marvin:

greple -Mjq --IN author.name Marvin

Search name is Marvin and type is Robot or Android:

greple -Mjq --IN name Marvin --IN type 'Robot|Android'

Please be aware that this is just a text matching tool for indented result of jq(1) command. So, for example, .commit.author includes everything under it and it matches committer field name. Use jq(1) filter for more complex and precise operation.

CAUTION

greple(1) commands read entire input before processing. So it should not be used for gigantic data or infinite stream.

INSTALL

CPANMINUS

$ cpanm App::Greple::jq

OPTIONS

• –IN label pattern

  Search pattern included in label field.

  Character % can be used as a wildcard in label string. So %name matches labels end with name, and name% matches labels start with name.

  If the label is simple string like name, it matches any level of JSON data.

  If the label string contains period (.), it is considered as a nested labels. Name .name matches only name label at the top level. Name process.name matches only name entry of some process hash.

  If labels are separated by two or more dots (..), they don’t have to have direct relationship.

• –NOT label pattern

  Specify negative condition.

• –MUST label pattern

  Specify required condition. If there is one or more required condition, all other positive rules move to optional. They are not required but highlighted if exist.

LABEL SYNTAX

• .file

  file at the top level.

• .file.path

  path under .file.

• .file..path

  path in descendants of .file.

• path

  path at any level.

• file.path

  file.path at any level.

• file..path

  Some path in descendants of some file.

• %path

  Any labels end with path.

• path%

  Any labels start with path.

• %path%

  Any labels include path.

EXAMPLES

Search from any name labels.

greple -Mjq --IN name _mina

Search from .process.name label.

greple -Mjq --IN .process.name _mina

Object .process.name contains _mina and .event contains EXEC.

greple -Mjq --IN .process.name _mina --IN .event EXEC

Object ppid is 803 and .event contains FORK or EXEC.

greple -Mjq --IN ppid 803 --IN event 'FORK|EXEC'

Object name is _mina and .event contains CREATE.

greple -Mjq --IN name _mina --IN event 'CREATE'

Object ancestors contains 1132 and .event contains EXEC with arguments highlighted.

greple -Mjq --IN ancestors 1132 --IN event EXEC --IN arguments .

Object *pid label contains 803.

greple -Mjq --IN %pid 803

Object any <path> contains _mina under .file and .event contains WRITE.

greple -Mjq --IN .file..path _mina --IN .event WRITE

TIPS

• Use --all option to show entire data.

• Use --nocolor option or set NO_COLOR=1 to disable colored output.

• Use -o option to show only matched part.

• Use --blockend= option to cancel showing block separator.

• Since this module implements original search function, greple(1) -i does not take effect. Set modifier in regex like (?i)pattern if you want case-insensitive match.

• Use -Mjq::set=debug to see actual regex.

• Use -Mjq::set=noif if you don’t have to use jq as an input filter. Data have to be well-formatted in that case.

• Use --color=always and set LESSANSIENDCHARS=mK if you want to see the output using less(1). Put next line in your ~/.greplerc to enable colored output always.

    option default --color=always
  

SEE ALSO

App::Greple, https://github.com/kaz-utashiro/greple

https://stedolan.github.io/jq/

AUTHOR

Kazumasa Utashiro

LICENSE

Copyright 2022 Kazumasa Utashiro

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.