From: Christian Couder <chriscool@tuxfamily.org>
Date: Sat, 23 Sep 2017 19:55:56 +0000 (+0000)
Subject: perf/run: add get_var_from_env_or_config()
X-Git-Tag: v2.16.0-rc0~83^2~7
X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/e6b71539dedc13a5737ab97cf54b9f41f94cac24?ds=inline;hp=e6b71539dedc13a5737ab97cf54b9f41f94cac24

perf/run: add get_var_from_env_or_config()

Add get_var_from_env_or_config() to easily set variables
from a config file if they are defined there and not already set.

This can also set them to a default value if one is provided.

As an example, use this function to set GIT_PERF_REPEAT_COUNT
from the perf.repeatCount config option or from the default
value.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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