Added DIRHASH_LOWER to external special remote protocol.

2 files changed, 20 insertions, 1 deletions

diff --git a/doc/design/external_special_remote_protocol.mdwn b/doc/design/external_special_remote_protocol.mdwn
index f9eca2af0..cbe8504ed 100644
--- a/doc/design/external_special_remote_protocol.mdwn
+++ b/doc/design/external_special_remote_protocol.mdwn
@@ -230,7 +230,15 @@ in control.
 * `DIRHASH Key`  
   Gets a two level hash associated with a Key. Something like "aB/Cd".
   This is always the same for any given Key, so can be used for eg,
-  creating hash directory structures to store Keys in.  
+  creating hash directory structures to store Keys in. This is the same
+  directory hash that git-annex uses inside `.git/annex/objects/`  
+  (git-annex replies with VALUE followed by the value.)
+* `DIRHASH_LOWER Key`  
+  Gets a two level hash associated with a Key, using only lower-case.
+  Something like "abc/def".
+  This is always the same for any given Key, so can be used for eg,
+  creating hash directory structures to store Keys in. This is the same
+  directory hash that is used by eg, the directory special remote.  
   (git-annex replies with VALUE followed by the value.)
 * `SETCONFIG Setting Value`  
   Sets one of the special remote's configuration settings.  
diff --git a/doc/design/external_special_remote_protocol/comment_26_4f8addd76a1e64d05a34910d4719a40c._comment b/doc/design/external_special_remote_protocol/comment_26_4f8addd76a1e64d05a34910d4719a40c._comment
new file mode 100644
index 000000000..790da0445
--- /dev/null
+++ b/doc/design/external_special_remote_protocol/comment_26_4f8addd76a1e64d05a34910d4719a40c._comment
@@ -0,0 +1,11 @@
+[[!comment format=mdwn
+ username="joey"
+ subject="""comment 26"""
+ date="2016-05-03T17:29:02Z"
+ content="""
+I don't think there's any particularly good reason why DIRHASH uses the
+mixed case format. However, it can't be changed without busting existing
+stuff.
+
+So yeah, I've gone ahead and added a `DIRHASH_LOWER`.
+"""]]