🐛 When using --date with git blame delta, the output is not colored

[sandr01d]

When using the --date option with git blame, delta does not color the output when the value is anything other than iso8601 or iso8601-local. E.g. git blame --date=short FILENAME does not produce colored output, while git blame --date=iso8601 FILENAME does.

• [X] Please include the raw text output from git, so that we can reproduce the problem. (You can use git --no-pager to produce the raw text output.)

ca769c23 (Wenxuan Zhang 2021-03-01  1) The MIT License (MIT)
ca769c23 (Wenxuan Zhang 2021-03-01  2) 
ca769c23 (Wenxuan Zhang 2021-03-01  3) Copyright © 2017-2021 Wenxuan Zhang <[email protected]>
ca769c23 (Wenxuan Zhang 2021-03-01  4) 
ca769c23 (Wenxuan Zhang 2021-03-01  5) Permission is hereby granted, free of charge, to any person obtaining a copy
ca769c23 (Wenxuan Zhang 2021-03-01  6) of this software and associated documentation files (the “Software”), to deal
ca769c23 (Wenxuan Zhang 2021-03-01  7) in the Software without restriction, including without limitation the rights
ca769c23 (Wenxuan Zhang 2021-03-01  8) to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
ca769c23 (Wenxuan Zhang 2021-03-01  9) copies of the Software, and to permit persons to whom the Software is
ca769c23 (Wenxuan Zhang 2021-03-01 10) furnished to do so, subject to the following conditions:
ca769c23 (Wenxuan Zhang 2021-03-01 11) 
ca769c23 (Wenxuan Zhang 2021-03-01 12) The above copyright notice and this permission notice shall be included in
ca769c23 (Wenxuan Zhang 2021-03-01 13) all copies or substantial portions of the Software.
ca769c23 (Wenxuan Zhang 2021-03-01 14) 
ca769c23 (Wenxuan Zhang 2021-03-01 15) THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
ca769c23 (Wenxuan Zhang 2021-03-01 16) IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
ca769c23 (Wenxuan Zhang 2021-03-01 17) FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
ca769c23 (Wenxuan Zhang 2021-03-01 18) AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
ca769c23 (Wenxuan Zhang 2021-03-01 19) LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
ca769c23 (Wenxuan Zhang 2021-03-01 20) OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
ca769c23 (Wenxuan Zhang 2021-03-01 21) THE SOFTWARE.

• [X] A screenshot of Delta's output is often helpful also.

I've created an asciinema here:

[stevielavern]

Not sure if this helps, but delta supports this option:

      --blame-timestamp-output-format <FMT>
          Format string for git blame timestamp output.

          This string is used for formatting the timestamps in git blame output. It must follow the `strftime` format syntax specification. If it is not present, the timestamps will be formatted in a human-friendly but possibly less accurate form.

          See: (https://docs.rs/chrono/latest/chrono/format/strftime/index.html)

For instance, to have absolute dates by default, put this in .gitconfig:

[delta]
    blame-timestamp-output-format = %c