Author image 歌代 和正 (Kaz Utashiro)
and 3 contributors

NAME

select - Greple module to select files

SYNOPSIS

greple -Mdig -Mselect ... --dig .

  FILENAME
    --suffix         file suffixes
    --select-name    regex match for file name
    --select-path    regex match for file path
    --x-suffix       exclusive version of --suffix         
    --x-select-name  exclusive version of --select-name
    --x-select-path  exclusive version of --select-path

  DATA
    --shebang        included in #! line
    --select-data    regex match for file data
    --x-shebang      exclusive version of --shebang        
    --x-select-data  exclusive version of --select-data

DESCRIPTION

Greple's -Mselect module allows to filter files using their name and content data. It is usually supposed to be used along with -Mfind or -Mdig module.

For example, next command scan files end with .pl and .pm under current directory.

    greple -Mdig -Mselect --suffix=pl,pm foobar --dig .

This is almost equivalent to the next command using --dig option with extra conditional expression for find command.

    greple -Mdig foobar --dig . -name '*.p[lm]'

The problems is that the above command does not search perl command script without suffixes. Next command looks for both files looking at #! (shebang) line.

    greple -Mdig -Mselect --suffix=pl,pm --shebang perl foobar --dig .

Generic option --select-name, --select-path and --select-data take regular expression and works for arbitrary use.

ORDER and DEFAULT

Besides normal inclusive rules, there is exclusive rules which start with --x- option name.

As for the order of rules, all exclusive rules are checked first, then inclusive rules are applied.

When no rules are matched, default action is taken. If no inclusive rule exists, it is selected. Otherwise discarded.

OPTIONS

FILENAME

--suffix=xx,yy,zz ...

Specify one or more file name suffixes connecting by comma (,). They will be converted to /\.(xx|yy|zz)$/ expression and compared to the file name.

--select-name=regex

Specify regular expression and it is compared to the file name. Next command search Makefiles under any directory.

    greple -Mselect --select-name '^Makefile.*'
--select-path=regex

Specify regular expression and it is compared to the file path.

--x-suffix=xx,yy,zz ...
--x-select-name=regex
--x-select-path=regex

These are reverse version of corresponding options. File is not selected when matched.

DATA

--shebang=aa,bb,cc

This option test if a given string is included in the first line of the file start with #! (aka shebang) mark. Multiple names can be specified connecting by command (,). Given string is converted to the next regular expression:

    /\A #! .*\b (aa|bb|cc)/x
--select-data=regex

Specify regular expression and it is compared to the file content data.

--x-shebang=aa,bb,cc
--x-select-data=regex

These are reverse version of corresponding options. File is not selected when matched.