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xeps/tools/triage.sh
2023-02-28 17:51:40 +00:00

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#!/bin/bash
# this should enforce as much of docs/TRIAGING.md as possible, run in top directory of xeps repo
# usage: triage.sh $pr_title [$pr_commit] [$merge_base]
# the last two will be HEAD and `git merge-base $pr_commit master` by default if not sent in
# for testing you can:
# git fetch origin +refs/pull/1254/merge
# git checkout FETCH_HEAD
# and only send in pr_title
# test cases:
# multiple xeps changed: git checkout 58cec1b6fb30ccc3b44c9dff34b94f53e958c1ac; ./tools/triage.sh 'XEP-0072, XEP-0096, XEP-0214: fix xmlns in sipub examples' 58cec1b6fb30ccc3b44c9dff34b94f53e958c1ac e4d3f721c2cf9fc7ed42c3428d098b2b3be3c8ed
# protoxep: git fetch origin +refs/pull/1254/merge; git checkout FETCH_HEAD; ./tools/triage.sh "ProtoXEP: Stream Limits Advertisement"
# one xep changed: git fetch origin +refs/pull/1249/merge; git checkout FETCH_HEAD; ./tools/triage.sh 'XEP-0444: bla'
set -euo pipefail
pr_title="$1"
shift
pr_commit=""
if [ $# -ge 1 ]
then
pr_commit="$1"
shift
else
pr_commit="HEAD"
fi
merge_base=""
if [ $# -ge 1 ]
then
merge_base="$1"
shift
else
merge_base="$(git merge-base "$pr_commit" master)"
fi
xpath() {
set -euo pipefail
xmllint --nonet --noent --xpath "$2" "$1" --nowarning --dtdvalid xep.dtd
}
files_changed="$(git --no-pager diff --name-only "$pr_commit" "$merge_base")"
set +e
protoxep="$(echo "$files_changed" | grep -E '^inbox/[^.]+.xml$')"
num_protoxeps=$(echo "$protoxep" | grep -v '^$' | wc -l)
xeps_changed="$(echo "$files_changed" | grep -E '^xep-[0-9]{4}.xml$')"
xep_likes_changed="$(echo "$files_changed" | grep -E '^xep-[^.]+.xml$')"
num_xeps_changed=$(echo "$xeps_changed" | grep -v '^$' | wc -l)
set -e
if [ $num_protoxeps -ge 1 ]
then
if [ $num_xeps_changed -ne 0 ]
then
echo "error: cannot change xeps and add ProtoXEP in 1 PR"
exit 1
fi
# we are dealing with a protoxep here
echo "tag: protoxep"
if [ $num_protoxeps -ne 1 ]
then
echo "tag: split-pr"
echo "error: multiple ProtoXEPs cannot be created in 1 PR"
exit 1
fi
expected_title="ProtoXEP: $(xpath "$protoxep" '/xep/header/title/text()')"
if [ "$pr_title" != "$expected_title" ]
then
echo "tag: bad-title"
echo "warning: expected title '$expected_title' got title '$pr_title'"
fi
echo "tag: ready-to-merge"
echo "manual: be sure type '$(xpath "$protoxep" '/xep/header/type/text()')' is appropriate for XEP content"
exit 0
fi
# we are *not* dealing with a protoxep here
if [ "$xeps_changed" != "$xep_likes_changed" ]
then
echo "error: xep files created/changed but named incorrectly: $(echo "$xep_likes_changed" | tr '\n' ' ')"
exit 0
fi
if [ $num_xeps_changed -eq 0 ]
then
# some tag for this? tooling changes?
echo "manual: no XEPs changed"
exit 0
fi
if [ $num_xeps_changed -gt 1 ]
then
echo "manual: multiple XEPs changed, split?"
fi
all_approvers=""
# a super approver can approve this entire PR, because they are author on all XEPs touched
super_approvers=""
for xep in $xeps_changed
do
xep_num="XEP-$(echo "$xep" | grep -Eo '[0-9]{4}')"
if ! echo "$pr_title" | grep "$xep_num" &>/dev/null
then
echo "warning: title did not include '$xep_num'"
fi
status="$(xpath "$xep" '/xep/header/status/text()')"
approvers=""
if echo "$status" | grep -E '^(Experimental|Deferred)$' &>/dev/null
then
# Experimental or Deferred
if [ "$status" == 'Deferred' ]
then
echo "tag: needs-editor-action"
echo "manual: move $xep_num status to Experimental before or with merge"
fi
approvers="$(xpath "$xep" '/xep/header/author/email/text()' | sort -u)"
else
# *not* Experimental or Deferred
approvers="$(xpath "$xep" '/xep/header/approver/text()' 2>/dev/null || echo 'Unknown')"
fi
echo "info: $xep_num status '$status' needs approvers: '$(echo "$approvers" | tr '\n' ' ' | xargs)'"
new_all_approvers="$(echo -e "$all_approvers\n$approvers" | sort -u)"
if [ "$all_approvers" != "$new_all_approvers" ]
then
# this isn't technically a problem if they all have an approver in common, ie super_approvers is non-empty, suppress warning?
if [ "$all_approvers" != "" ]
then
echo "manual: multiple XEPs modified with different approvers, split?"
super_approvers="$(comm -12 <(echo "$super_approvers") <(echo "$approvers") | sort -u)"
else
super_approvers="$new_all_approvers"
fi
all_approvers="$new_all_approvers"
fi
# check revision block added and minor version bump
versions="$(xpath "$xep" '/xep/header/revision/version/text()')"
latest_num_versions="$(echo "$versions" | wc -l)"
latest_version="$(echo "$versions" | head -n1)"
# this git-cat-file usage assumes no entities etc are ever removed from xep.ent etc, this should be true
# but if it ever isn't, then we'll have to check out the entire repo as of $merge_base to do that
versions="$(git cat-file -p "$merge_base:./$xep" | xpath - '/xep/header/revision/version/text()')"
merge_base_num_versions="$(echo "$versions" | wc -l)"
merge_base_version="$(echo "$versions" | head -n1)"
if [ $latest_num_versions -gt $merge_base_num_versions ]
then
if ! echo "$latest_version" | grep -E '^[0-9]+\.[0-9]+\.[0-9]+$' &>/dev/null
then
echo "error: version is not semver format: '$latest_version'"
exit 1
fi
if [ "$latest_version" == "$merge_base_version" ]
then
echo "tag: needs-version-block"
# todo: anyone have a fancy way to check semver is higher in $latest_version ?
# beware we have funky non-semver versions
# for xep in xep-*.xml; do xpath "$xep" '/xep/header/revision/version/text()'; done | sort -u > xep_versions.txt
fi
else
echo "tag: needs-version-block"
fi
done
if [ "$super_approvers" != "" ]
then
pr_authors="$(git --no-pager log --format="%aE" "$merge_base".."$pr_commit" | sort -u)"
pr_authors_super_approvers="$(comm -12 <(echo "$super_approvers") <(echo "$pr_authors") | sort -u)"
if [ "$pr_authors_super_approvers" != "" ]
then
echo "info: entire PR can be approved by one of the commit authors: '$(echo "$pr_authors" | tr '\n' ' ' | xargs)'"
fi
echo "info: entire PR can be approved by: '$(echo "$super_approvers" | tr '\n' ' ' | xargs)'"
fi
if echo "$all_approvers" | grep '^Council$' &>/dev/null
then
echo "tag: needs-council"
fi
if echo "$all_approvers" | grep '^Board$' &>/dev/null
then
echo "tag: needs-board"
fi
if echo "$all_approvers" | grep '^Unknown$' &>/dev/null
then
echo "tag: needs-unknown-approver"
echo "warning: approver is unknown, perhaps old XEP that needs fixed?"
fi
if echo "$all_approvers" | grep '@' &>/dev/null
then
echo "tag: needs-author"
fi
echo "manual: if only editorial changes, may not need approval"