Mercurial > hg
view contrib/perf-utils/discovery-helper.sh @ 45382:0652a533fe3c
mergestate: use _stateextras instead of merge records for commit related info
There is a set of information related to a merge which is needed on commit. We
want to store such information in the mergestate so that we can read it while
committing.
For this purpose, we are using merge records and introduced a merge
entry state for that. However this won't scale and is not clean way to implement
this.
This patch reworks the existing logic related to this to use _stateextras and
read from it.
Right now the information stored is not very descriptive but it will be in next
patch.
Using _stateextras also makes MERGE_RECORD_MERGED_OTHER useless and only to be
kept for BC.
Differential Revision: https://phab.mercurial-scm.org/D8920
author | Pulkit Goyal <7895pulkit@gmail.com> |
---|---|
date | Mon, 10 Aug 2020 15:29:02 +0530 |
parents | cae3f7e37623 |
children |
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#!/bin/bash # # produces two repositories with different common and missing subsets # # $ discovery-helper.sh REPO NBHEADS DEPT # # The Goal is to produce two repositories with some common part and some # exclusive part on each side. Provide a source repository REPO, it will # produce two repositories REPO-left and REPO-right. # # Each repository will be missing some revisions exclusive to NBHEADS of the # repo topological heads. These heads and revisions exclusive to them (up to # DEPTH depth) are stripped. # # The "left" repository will use the NBHEADS first heads (sorted by # description). The "right" use the last NBHEADS one. # # To find out how many topological heads a repo has, use: # # $ hg heads -t -T '{rev}\n' | wc -l # # Example: # # The `pypy-2018-09-01` repository has 192 heads. To produce two repositories # with 92 common heads and ~50 exclusive heads on each side. # # $ ./discovery-helper.sh pypy-2018-08-01 50 10 set -euo pipefail printusage () { echo "usage: `basename $0` REPO NBHEADS DEPTH [left|right]" >&2 } if [ $# -lt 3 ]; then printusage exit 64 fi repo="$1" shift nbheads="$1" shift depth="$1" shift doleft=1 doright=1 if [ $# -gt 1 ]; then printusage exit 64 elif [ $# -eq 1 ]; then if [ "$1" == "left" ]; then doleft=1 doright=0 elif [ "$1" == "right" ]; then doleft=0 doright=1 else printusage exit 64 fi fi leftrepo="${repo}-${nbheads}h-${depth}d-left" rightrepo="${repo}-${nbheads}h-${depth}d-right" left="first(sort(heads(all()), 'desc'), $nbheads)" right="last(sort(heads(all()), 'desc'), $nbheads)" leftsubset="ancestors($left, $depth) and only($left, heads(all() - $left))" rightsubset="ancestors($right, $depth) and only($right, heads(all() - $right))" echo '### creating left/right repositories with missing changesets:' if [ $doleft -eq 1 ]; then echo '# left revset:' '"'${leftsubset}'"' fi if [ $doright -eq 1 ]; then echo '# right revset:' '"'${rightsubset}'"' fi buildone() { side="$1" dest="$2" revset="$3" echo "### building $side repository: $dest" if [ -e "$dest" ]; then echo "destination repo already exists: $dest" >&2 exit 1 fi echo '# cloning' if ! cp --recursive --reflink=always ${repo} ${dest}; then hg clone --noupdate "${repo}" "${dest}" fi echo '# stripping' '"'${revset}'"' hg -R "${dest}" --config extensions.strip= strip --rev "$revset" --no-backup } if [ $doleft -eq 1 ]; then buildone left "$leftrepo" "$leftsubset" fi if [ $doright -eq 1 ]; then buildone right "$rightrepo" "$rightsubset" fi