view contrib/merge-test-compat.sh @ 6889:a66cf9008781

obslog: also display patch for rebased changesets

This applies the same logic that is used for "merge-diff" to rebased
changesets. The successors' content is compared to the content of the
predecessors rebased in-memory on the new parents.

This highlights the changes that were actually introduced while rebasing (like
conflict resolution or API adjustment).

As a side effect, obslog now also outputs slightly more diffs for splits,
showing what parts of the original big changeset were moved to the smaller
split components (but for now it only works for the first few changesets).

#!/bin/bash
set -euox pipefail

unset GREP_OPTIONS

compatbranches=$(hg branches --quiet | grep 'mercurial-' | grep -v ':' | sort -n --reverse)
prev='stable'
topic=${1:-'test-compat'}
for branch in $compatbranches; do
    # Logic in the revsets below:
    # 1. There is target topic on stable or compatibility branch: merge all
    # those commits, they are related to our work and need to pass tests on all
    # compatibility branches.
    # 2. There is no target topic: avoid any commits that have topic set, they
    # are definitely unrelated to what we're doing.
    # In other words, if you want to test certain commits, assign them all to
    # one topic and provide that topic as the first argument to this script.
    uptarget="first(max(branch('$branch') and topic('$topic')) or max(branch('$branch') and not topic()))"
    hg up -r "$uptarget"
    hg topic "$topic"
    mergetarget="first(max(branch('$prev') and topic('$topic')) or max(branch('$prev') and not topic()))"
    hg merge -r "$mergetarget"
    hg commit -m "test-compat: merge $prev into $branch"
    prev=$branch
done