X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=dgit.git;a=blobdiff_plain;f=dgit.7;h=7ad5abaee9446462544d85cdd3fb89452783a3d8;hp=ca1153522b5bce81e7b32166a76b52123ba4041e;hb=8900e2002df925ebdf4941d18094fc5ca408e027;hpb=6e65361c03015f933a393ad8667c0fb0dd0b6adf

diff --git a/dgit.7 b/dgit.7
index ca115352..7ad5abae 100644
--- a/dgit.7
+++ b/dgit.7
@@ -197,6 +197,17 @@ import existing vcs history
 (which might not be faithful to dgit's invariants)
 or previous non-Dgit uploads
 (which would not provide a very rich history).
+
+git represents only file executability.
+git does not represent empty directories,
+or any leaf objects other than plain files and symlinks.
+The behaviour of Debian source package formats
+on objects with unusual permissions is complicated.
+Some pathological Debian source packages will no longer build
+if empty directories are pruned
+(or if other things not reproduced by git are changed).
+Such sources cannot be worked with properly in git,
+and therefore not with dgit either.
 .SH READ-ONLY DISTROS
 Distros which do not maintain a set of dgit history git repositories
 can still be used in a read-only mode with dgit.  Currently Ubuntu