annex.maxextensions configuration

Controls how many filename extensions to preserve.

Sponsored-by: the NIH-funded NICEMAN (ReproNim TR&D3) project

doc/git-annex.mdwn

@@ -873,8 +873,16 @@ repository, using [[git-annex-config]]. See its man page for a list.)
   and also when generating a view branch.
 
   The default length is 4, which allows extensions like "jpeg". The dot before
-  the extension is not counted part of its length. At most two extensions
-  at the end of a filename will be preserved, e.g. .gz or .tar.gz .
+  the extension is not counted part of its length.
+
+* `annex.maxextensions`
+
+  Maximum number of filename extensions to preserve when using a backend
+  that preserves filename extensions, and also when generating a view
+  branch.
+
+  The default is 2, which allows for compound extensions like ".tar.gz".
+  When set to 1, it will only preserve the last extension, eg ".gz".
 
 * `annex.diskreserve`
 

doc/todo/way_to_instruct_on_how_to_decide_on_extension__63__.mdwn

@@ -12,3 +12,5 @@ Just throwing against the wall to see if sticks
 
 [[!meta author=yoh]]
 [[!tag projects/repronim]]
+
+> added annex.maxextensions config, [[done]] --[[Joey]]

doc/todo/way_to_instruct_on_how_to_decide_on_extension__63__/comment_1_b3e9fcb09b6455301a5f7a9bf50a8a49._comment

@@ -9,7 +9,7 @@ extension. For a .mkv file, I'd guess most video players don't care about
 the extension.
 
 annex.maxextensionlength won't help here, but I think it makes sense to add
-an analagous annex.maxextensioncount which would default to 2 (as it
+an analagous annex.maxextensions which would default to 2 (as it
 currently does to handle .tar.gz) but you could set to 1.
 
 It might also be a reasonable argument that filename extensions are not