On 3/1/17 7:08 PM, Jun Wu wrote:
# HG changeset patch
# User Jun Wu <qu...@fb.com>
# Date 1488421266 28800
# Wed Mar 01 18:21:06 2017 -0800
# Node ID c1f380ab1539b0dc0bd05f0ef2eb15b827453dbc
# Parent 1e74c8187c9b98644ae35902c9e3faddad00f364
# Available At
https://urldefense.proofpoint.com/v2/url?u=https-3A__bitbucket.org_quark-2Dzju_hg-2Ddraft&d=DwIGaQ&c=5VD0RTtNlTh3ycd41b3MUw&r=nuarHzhP1wi1T9iURRCj1A&m=Ltv4ypjmHC_b3dl-wNJ14scVlgAc4XjMCbW9vkwrU8s&s=ah37F78Eb6TE15sHQ44HEY-Aa1RpuecRnTgtRLmB_fA&e=
# hg pull
https://urldefense.proofpoint.com/v2/url?u=https-3A__bitbucket.org_quark-2Dzju_hg-2Ddraft&d=DwIGaQ&c=5VD0RTtNlTh3ycd41b3MUw&r=nuarHzhP1wi1T9iURRCj1A&m=Ltv4ypjmHC_b3dl-wNJ14scVlgAc4XjMCbW9vkwrU8s&s=ah37F78Eb6TE15sHQ44HEY-Aa1RpuecRnTgtRLmB_fA&e=
-r c1f380ab1539
dirstate: avoid unnecessary load+dump during backup
Previously, dirstate.savebackup unconditionally dumps the dirstate map to
disk. It may require loading dirstate first to be able to dump it. Those
operations could be expensive if the dirstate is big, and could be avoided
if we know the dirstate file is up-to-date.
This patch avoids the read and write if the dirstate is clean. In that case,
we just do a plain copy without any serialization.
This should make commands which use transactions but do not touch dirstate
faster. For example, "hg bookmark -r REV NAME".
I wish we had macros in emails so I could say: superlike
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