Enable use of REPO_CONFIG_DIR to customize .repoconfig location

For use cases with multiple instances of repo, eg some CI environments.

Bug: https://crbug.com/gerrit/15803
Change-Id: I65c1cfc8f6a98adfeb5efefc7ac6b45bf8e134de
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/356719
Tested-by: Gavin Mak <gavinmak@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/docs/internal-fs-layout.md b/docs/internal-fs-layout.md
index 8be61782..401ebda1 100644
--- a/docs/internal-fs-layout.md
+++ b/docs/internal-fs-layout.md
@@ -243,7 +243,9 @@ The `[branch]` settings are updated by `repo start` and `git branch`.
 
 ## ~/ dotconfig layout
 
-Repo will create & maintain a few files in the user's home directory.
+Repo will create & maintain a few files under the `.repoconfig/` directory.
+This is placed in the user's home directory by default but can be changed by
+setting `REPO_CONFIG_DIR`.
 
 *   `.repoconfig/`: Repo's per-user directory for all random config files/state.
 *   `.repoconfig/config`: Per-user settings using [git-config] file format.