diff tests/test-lfs-serve.t @ 47077:119790e1c67c

cg4: introduce protocol flag to signify the presence of sidedata

We need a way of signaling whether the current revision has sidedata or not,
and re-using the revision flags would waste potential revlog flags and mix two
normally independent layers.

In this change, we add a single byte at the start of the ch4 delta header to
set potential protocol flags. We also reclaim the revlog flag for sidedata,
since it is no longer used, in its place now lives the (also experimental)
copytracing flag.

When generating deltas, apply the `CG_FLAG_SIDEDATA` flag if there is sidedata.
When applying the deltas, if said flag is present, the next chunk contains the
sidedata.

Differential Revision: https://phab.mercurial-scm.org/D10343

--- a/tests/test-lfs-serve.t	Thu Apr 08 16:34:11 2021 +0200
+++ b/tests/test-lfs-serve.t	Sat Apr 10 11:27:40 2021 +0200
@@ -355,11 +355,11 @@
   # LFS required- both lfs and non-lfs revlogs have 0x2000 flag
   *** runcommand debugprocessors lfs.bin -R ../server
   registered processor '0x8000'
-  registered processor '0x800'
+  registered processor '0x1000'
   registered processor '0x2000'
   *** runcommand debugprocessors nonlfs2.txt -R ../server
   registered processor '0x8000'
-  registered processor '0x800'
+  registered processor '0x1000'
   registered processor '0x2000'
   *** runcommand config extensions --cwd ../server
   extensions.debugprocessors=$TESTTMP/debugprocessors.py
@@ -368,7 +368,7 @@
   # LFS not enabled- revlogs don't have 0x2000 flag
   *** runcommand debugprocessors nonlfs3.txt
   registered processor '0x8000'
-  registered processor '0x800'
+  registered processor '0x1000'
   *** runcommand config extensions
   extensions.debugprocessors=$TESTTMP/debugprocessors.py
 
@@ -411,11 +411,11 @@
   # LFS enabled- both lfs and non-lfs revlogs have 0x2000 flag
   *** runcommand debugprocessors lfs.bin -R ../server
   registered processor '0x8000'
-  registered processor '0x800'
+  registered processor '0x1000'
   registered processor '0x2000'
   *** runcommand debugprocessors nonlfs2.txt -R ../server
   registered processor '0x8000'
-  registered processor '0x800'
+  registered processor '0x1000'
   registered processor '0x2000'
   *** runcommand config extensions --cwd ../server
   extensions.debugprocessors=$TESTTMP/debugprocessors.py
@@ -424,7 +424,7 @@
   # LFS enabled without requirement- revlogs have 0x2000 flag
   *** runcommand debugprocessors nonlfs3.txt
   registered processor '0x8000'
-  registered processor '0x800'
+  registered processor '0x1000'
   registered processor '0x2000'
   *** runcommand config extensions
   extensions.debugprocessors=$TESTTMP/debugprocessors.py
@@ -433,7 +433,7 @@
   # LFS disabled locally- revlogs don't have 0x2000 flag
   *** runcommand debugprocessors nonlfs.txt -R ../nonlfs
   registered processor '0x8000'
-  registered processor '0x800'
+  registered processor '0x1000'
   *** runcommand config extensions --cwd ../nonlfs
   extensions.debugprocessors=$TESTTMP/debugprocessors.py
   extensions.lfs=!