As noted earlier, `vcsh` will set <$GIT_DIR> and <$GIT_WORK_TREE> to the
appropriate values for fake bare git repositories.
+## CONFIG
+
+There are several ways to turn the various knobs on `vcsh`. In order of
+ascending precedence, they are:
+
+* `VARIABLE=foo vcsh`
+* </etc/vcsh/config>
+* <$XDG_CONFIG_HOME/vcsh/config>
+* `vcsh -c <file>`
+
+Please note that those files are sourced. Any and all commands will be
+executed in the context of your shell.
+
+Interesting knobs you can turn:
+
+* <$VCSH_GITIGNORE>:
+ Can be either <exact> or <recursive>.
+
+ <exact> will seed the repo-specific <.gitignore> with all file and directory
+ names which `git ls-files` returns.
+
+ <recursive> will descend through all directories recursively additionally to
+ the above.
+
+ Defaults to <exact>.
+
+Less interesting knobs you could turn:
+
+* <$VCSH_DEBUG>:
+ Enter debug mode.
+
+* <$XDG_CONFIG_HOME>:
+ As specified in the 'XDG Base Directory Specification', see
+ <http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html>
+
+ Defaults to <$HOME/.config>.
+
+* <$VCSH_REPO_D>:
+ The directory where repositories are read from and stored.
+
+ Defaults to <$XDG_CONFIG_HOME/vcsh/repo.d>.
+
+* <$VCSH_HOOK_D>:
+ The directory where hooks are read from.
+
+ Defaults to <$XDG_CONFIG_HOME/vcsh/hooks-enabled>.
+
+* <$VCSH_BASE>:
+ The directory where repositories are checked out to.
+
+ Defaults to <$HOME>.
+
+
## HOOK SYSTEM
`vcsh` provides a hook system. Hook scripts must be executable and should be
## SECURITY CONSIDERATIONS
-`vcsh` allows you to execute arbitrary commands via `vcsh` run. For example,
+`vcsh` allows you to execute arbitrary commands via `vcsh run`. For example,
adding a `sudo`(8) rule for `vcsh` would be pretty stupid.
-Additionally, vcsh will source, i.e. execute, <$XDG_CONFIG_HOME/vcsh/config>.
-You can put any and all commands into this config file and they will be executed.
+Additionally, vcsh will source, i.e. execute, all files listed in <CONFIG>.
+You can put any and all commands into these config files and they will be
+executed.
## BUGS