check-headers-valid.sh

if [ "$1" = "--verify" ]
then
	VERIFY="true"
else
	VERIFY="false"
fi

for file in $(find -name '*.java')
do
	date=$(git log -n 1 --pretty=format:%ad --date=format:%Y -- $file)
	author=$(git log -n 1 --pretty=format:%an -- $file | sed 's/Colby/Cel/')
	commit=$(git log -n 1 --pretty=format:%H -- $file)
	filesha=$(sha256sum $file)
	headdata=$(head -n 2 -- $file | tail -n 1)
	if echo "$headdata" | grep -q "Copyright" -
	then
		if grep -q "^$filesha$" - <header-dates-ignore.txt
		then
			# don't check
			true
		else
			if [ "$(git log --oneline $commit -n 2 | wc -l)" = 1 ]
			then
				# don't check: we can't see the parent commit from here
				true
			else
				if [ "81395e30eaaa50287a3d920c631f294183e16f65" = "$commit" ]
				then
					# don't check: this was a name change commit that touched far too many things
					true
				else
					FAIL="false"
					if echo "$headdata" | grep -q "$author" -
					then
						# found
						true
					else
						echo
						echo "Uncredited author: $headdata"
						FAIL="true"
					fi
					if echo "$headdata" | grep -qE "[-, ]$date " -
					then
						# found
						true
					else
						echo
						echo "Old date: $headdata"
						FAIL="true"
					fi
					while $FAIL
					do
						echo
						echo "$date $author <$commit $file>"
						echo

						if $VERIFY
						then
							echo "Failed."
							exit 1
						fi

						read -e -p "(b)lame/ne(w) blame/(a)uthor blame/(e)dit/(i)gnore/e(x)it/(n)ext/(!)...> " cmd

						cmdc="${cmd:0:1}"
						if [ "$cmdc" = "b" ]
						then
							git blame -- $file
						elif [ "$cmdc" = "w" ]
						then
							git blame -- $file | grep "$date"
						elif [ "$cmdc" = "a" ]
						then
							git blame -- $file | grep "$author"
						elif [ "$cmdc" = "e" ]
						then
							nano $file
						elif [ "$cmdc" = "i" ]
						then
							echo "$filesha" >>header-dates-ignore.txt
							echo "There are now $(wc -l header-dates-ignore.txt | cut -d ' ' -f 1) ignored entries."
							FAIL="false"
						elif [ "$cmdc" = "x" ]
						then
							exit 1
						elif [ "$cmdc" = "n" ]
						then
							FAIL="false"
						elif [ "$cmdc" = "!" ]
						then
							${cmd:1}
							echo "Exit code: $?"
						else
							echo "unknown command '$cmdc'"
						fi
					done
				fi
			fi
		fi
	fi
done
if $VERIFY
then
	echo "Success!"
else
	echo "Done."
fi