In addition to environment variables used by git (e.g. GIT_DIR), tig defines
the following:
+TIGRC_USER::
+ Path of the user configuration file (defaults to `~/.tigrc`).
+
+TIGRC_SYSTEM::
+ Path of the system wide configuration file (defaults to
+ `{sysconfdir}/tigrc`).
+
TIG_LS_REMOTE::
Set command for retrieving all repository references. The command
should output data in the same format as git-ls-remote(1).
'~/.tigrc'::
User configuration file. See gitlink:tigrc[5] for examples.
+'{sysconfdir}/tigrc'::
+ System wide configuration file.
+
'$GIT_DIR/config'::
Repository config file. Read on start-up with the help of
git-config(1).