NAME

       Devel::Cover::Report::Vim - Backend for displaying coverage data in Vim

VERSION

       version 1.40

SYNOPSIS

        cover -report vim

DESCRIPTION

       This module provides a reporting mechanism for displaying coverage data in Vim.  It is
       designed to be called from the "cover" program.

       By default, the output of this report is a file named "coverage.vim" in the directory of
       the coverage database.  To use it, run

        :so cover_db/coverage.vim

       and you should see signs in the left column indicating the coverage status of that line.

       The signs are as follows:

        P - Pod coverage
        S - Statement coverage
        R - Subroutine coverage
        B - Branch coverage
        C - Condition coverage

       The last of the criteria, in the order given above, is the one which is displayed.
       Correctly covered criteria are shown in green.  Incorrectly covered criteria are shown in
       red.  Any incorrectly covered criterion will override a correctly covered criterion.

       If the coverage for the file being displayed is out of date the a function called
       CoverageOld() is called and passed the name of the file.  Similarly, for current coverage
       data file CoverageValid is called.

       Signs may be overridden in a file named devel-cover.vim located somewhere underneath the
       ~/.vim directory.

       For example, I use the solarized theme and keep the following commands in my local
       configuration file ~/.vim/local/devel-cover.vim:

        let s:fg_cover = "#859900"
        let s:fg_error = "#dc322f"
        let s:bg_valid = "#073642"
        let s:bg_old   = "#342a2a"

        let s:types = [ "pod", "subroutine", "statement", "branch", "condition", ]

        for s:type in s:types
            exe "highlight cov_" . s:type .       " ctermbg=1 cterm=bold gui=NONE guifg=" . s:fg_cover
            exe "highlight cov_" . s:type . "_error ctermbg=1 cterm=bold gui=NONE guifg=" . s:fg_error
        endfor
        exe "highlight SignColumn ctermbg=0 guibg=" . s:bg_valid

        " highlight cov ctermbg=8 guibg=#002b36
        " highlight err ctermbg=0 guibg=#073642

        function! s:set_bg(bg)
            for s:type in s:types
                exe "highlight cov_" . s:type .       " guibg=" . a:bg
                exe "highlight cov_" . s:type . "_error guibg=" . a:bg
            endfor
            exe "highlight SignColumn ctermbg=0 guibg=" . a:bg
        endfunction

        function! CoverageValid(filename)
            call s:set_bg(s:bg_valid)
        endfunction

        function! CoverageOld(filename)
            call s:set_bg(s:bg_old)
        endfunction

       This configuration sets the background colour of the signs to a dark red when the coverage
       data is out of date.

       coverage.vim adds two user commands: :Cov and :Uncov which can be used to toggle the state
       of coverage signs.

       The idea and the vim template is shamelessly stolen from Simplecov-Vim.  See
       https://github.com/nyarly/Simplecov-Vim

SEE ALSO

        Devel::Cover
        Simplecov-Vim (https://github.com/nyarly/Simplecov-Vim)

BUGS

       Huh?

LICENCE

       Copyright 2012-2023, Paul Johnson (paul@pjcj.net)

       This software is free.  It is licensed under the same terms as Perl itself.

       The latest version of this software should be available from my homepage:
       http://www.pjcj.net

       The template is copied from Simplecov-Vim (https://github.com/nyarly/Simplecov-Vim) and is
       under the MIT Licence.

       The MIT License

       Copyright (c) 2011 Judson Lester

       Permission is hereby granted, free of charge, to any person obtaining a copy of this
       software and associated documentation files (the "Software"), to deal in the Software
       without restriction, including without limitation the rights to use, copy, modify, merge,
       publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
       to whom the Software is furnished to do so, subject to the following conditions:

       The above copyright notice and this permission notice shall be included in all copies or
       substantial portions of the Software.

       THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
       INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
       PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
       FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
       OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
       DEALINGS IN THE SOFTWARE.