Re: [PATCH v2 3/3] docs: update when `git bisect visualize` uses `gitk`

[Eric Sunshine <sunshine@sunshineco.com>]

On Fri, Aug 4, 2023 at 1:22 AM Matthias Aßhauer via GitGitGadget
<gitgitgadget@gmail.com> wrote:
> This check has involved more environment variables than just `DISPLAY` since
> 508e84a790 (bisect view: check for MinGW32 and MacOSX in addition to X11,
> 2008-02-14), so let's update the documentation accordingly.
>
> Signed-off-by: Matthias Aßhauer <mha1993@live.de>
> ---
> diff --git a/Documentation/git-bisect.txt b/Documentation/git-bisect.txt
> @@ -204,9 +204,14 @@ as an alternative to `visualize`):
> -If the `DISPLAY` environment variable is not set, 'git log' is used
> -instead.  You can also give command-line options such as `-p` and
> -`--stat`.
> +Git detects a graphical environment through various environment variables:
> +`DISPLAY`, which is set in X Window System environments on Unix systems.
> +`SESSIONNAME`, which is set under Cygwin in interactive desktop sessions.
> +`MSYSTEM`, which is set under Msys2 and Git for Windows.
> +`SECURITYSESSIONID`, which is set on macOS in interactive desktop sessions.

Micronit: SECURITYSESSIONID is not universal on macOS[1]; some people
report its presence in iTerm2 and HyperTerm, and perhaps even Apple's
own Terminal (although it's not defined for me in Terminal on High
Sierra). Perhaps just say "may be set on macOS".

Probably not worth a reroll.

[1]: https://github.com/vercel/hyper/issues/482