git based simple changelog for use with grep. multiple users can use
this tool as long they remember to pull and push to a central repository.
set environment variable IDID_STORE to change the changelog store folder
location.

set IDID_SUBFOLDER environment variable or use the -d option to change
the default store subfolder.

this program is heavly inspired from pass, the standard unix password
manager. look at https://www.passwordstore.org/.

version:
    0.12

author:
    arnulf heimsbakk
    https://github.com/aheimsbakk/idid

usage:
    idid add [-a] [-y] [-d subfolder] changelog free text
        add a changelog line in the the specified directory structure.

        -a  mark log entry as done from script, automatic
        -d  destination directory for changelog, if not specified
            it defaults to bash $USER variable, currently "aheimsbakk"
        -y  answer yes to all questons

    idid find [subfolder]
        list directory structure and changelog files.

    idid list [-a|subfolder] [partial date]
        list changelog, filter on subfolder and parts of a date on the
        format 1970-01-01.

        -a  list all change log lines without filtering

    idid tags [-a|subfolder] [partial date]
        list #- and @-tags in the changelog, filter on subfolder and
        parts of a date on the format 1970-01-01.

    idid help
        show this help screen

    idid example
        show some examples of usage

    idid version
        show current version

    idid
        list last week of logs