listRecentCommits.sh
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listRecentCommits.sh
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	#!/bin/bash -eu

	# This script generates a structured git log of commits to the VisualEditor-MediaWiki repository,
	# and walks the submodule updates to the lib/ve submodule and the OOjs and OOjs UI pull-through
	# build commits to detail all changes since a given branch point.

	# Using `git branch -a \| grep wmf \| sort -V` to automatically pick the latest branch version would
	# be nice here, but doesn't work because Mac OS X's version of sort is too old.

	# cd to the VisualEditor directory
	cd $(cd $(dirname $0)/..; pwd)

	# Ensure input is correct
	if [ -z "${1:-}" ]
	then
	echo >&2 "Usage: listRecentCommits.sh <startBranch>"
	exit 1
	fi
	STARTHASH=`git rev-parse $1`
	if [ "$?" -ne "0" ]
	then
	echo >&2 "Parameter is not a valid git branch"
	exit 1
	fi

	echo "Listing changes since '$1' (hash: $STARTHASH)"
	echo ""

	LOCALCHANGES=`git log $1.. --oneline --no-merges --reverse --color=never \|
	egrep --color=never -v '(translatewiki\|BrowserTest)'`

	# Iterate over lines matching "Update VE core submodule"
	while read -r CHANGE
	do
	printf "$CHANGE\n"

	if [[ $CHANGE == "Update VE core submodule" ]]
	then
	CHANGEHASH=`cut -f1 -d' ' <<< $CHANGE`

	SUBCHANGES=`git log --format=%B -n1 $CHANGEHASH -- \|
	sed -n -e '/New changes/,/^$/p' \|
	tail -n +2 \|
	sed -e '$ d' \|
	grep --color=never -v 'translatewiki'`
	while read -r SUBCHANGE
	do
	printf "\t$SUBCHANGE\n"
	done <<< "$SUBCHANGES"

	# Extra new-line between sub-module pulls for clarity
	printf "\n"
	fi
	done <<< "$LOCALCHANGES"
	exit