From patchwork Mon Jan  2 17:51:15 2017
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Subject: [5,of,7,flagprocessor,v7] revlog: REVIDX_EXTSTORED flag
From: Remi Chaintron <remi@fb.com>
X-Patchwork-Id: 18072
Message-Id: <8a72e38f826c86f2a9ed.1483379475@remi-mbp2>
To: <mercurial-devel@mercurial-scm.org>
Date: Mon, 2 Jan 2017 12:51:15 -0500

# HG changeset patch
# User Remi Chaintron <remi@fb.com>
# Date 1482451803 18000
#      Thu Dec 22 19:10:03 2016 -0500
# Node ID 8a72e38f826c86f2a9ede795198a016c330734de
# Parent  c59965f26abba42afccd05881c5f3a73d7f2e1d1
revlog: REVIDX_EXTSTORED flag

diff --git a/mercurial/help/internals/revlogs.txt b/mercurial/help/internals/revlogs.txt
--- a/mercurial/help/internals/revlogs.txt
+++ b/mercurial/help/internals/revlogs.txt
@@ -90,6 +90,7 @@
 6-7 (2 bytes)
    Bit flags impacting revision behavior. The following bit offsets define:
    0: REVIDX_ISCENSORED indicates the revision has censored metadata.
+   1: REVIDX_EXTSTORED indicates the revision data is stored externally.
 8-11 (4 bytes)
    Compressed length of revision data / chunk as stored in revlog.
 12-15 (4 bytes)
diff --git a/mercurial/revlog.py b/mercurial/revlog.py
--- a/mercurial/revlog.py
+++ b/mercurial/revlog.py
@@ -54,11 +54,13 @@
 
 # revlog index flags
 REVIDX_ISCENSORED = (1 << 15) # revision has censor metadata, must be verified
+REVIDX_EXTSTORED = (1 << 14) # revision data is stored externally
 REVIDX_DEFAULT_FLAGS = 0
-REVIDX_KNOWN_FLAGS = REVIDX_ISCENSORED
+REVIDX_KNOWN_FLAGS = REVIDX_ISCENSORED | REVIDX_EXTSTORED
 # stable order in which flags need to be processed and their transforms applied
 REVIDX_FLAGS_ORDER = [
     REVIDX_ISCENSORED,
+    REVIDX_EXTSTORED,
 ]
 
 # max size of revlog with inline data