--- a/mercurial/debugcommands.py Tue Aug 14 13:36:41 2018 -0700
+++ b/mercurial/debugcommands.py Fri Jul 27 10:59:59 2018 +0200
@@ -2085,18 +2085,30 @@
if not flags:
flags = ['(none)']
+ ### tracks merge vs single parent
nummerges = 0
+
+ ### tracks ways the "delta" are build
+ # full file content
numfull = 0
+ # delta against previous revision
numprev = 0
+ # delta against first or second parent (not prev)
nump1 = 0
nump2 = 0
+ # delta against neither prev nor parents
numother = 0
+ # delta against prev that are also first or second parent
+ # (details of `numprev`)
nump1prev = 0
nump2prev = 0
+
+ # data about delta chain of each revs
chainlengths = []
chainbases = []
chainspans = []
+ # data about each revision
datasize = [None, 0, 0]
fullsize = [None, 0, 0]
deltasize = [None, 0, 0]