Meta/Linus: blame not just Linus's initial version but any version

index 8cbcd18bb7..1b9e162a01 100755 --- a/Linus +++ b/Linus @@ -4,8 +4,44 @@ _x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]' _x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40" -initial=$(git rev-parse --verify e83c5163316f89bfbde7d9ab23ca2e25604af290) && -this=$(git rev-parse --verify ${1-HEAD}^0) || exit +summary= +while case $# in 0) break ;; esac +do + case "$1" in + -s | --summary) + summary=t + ;; + -*) + echo >&2 "$1: unknown option" + exit 1 + ;; + *) + break + ;; + esac + shift +done + +if test $# = 0 +then + this=HEAD +else + this=$1 + shift +fi + +if test $# = 0 +then + initial=e83c5163316f89bfbde7d9ab23ca2e25604af290 + range="..$this" +else + initial=$1 + range="$initial..$this" + shift +fi + +this=$(git rev-parse --verify "$this^0") && +initial=$(git rev-parse --verify "$initial^0") || exit tmp="/var/tmp/Linus.$$" trap 'rm -f "$tmp".*' 0 @@ -30,10 +66,12 @@ show () { printf "%12d %12d %s (%d.%02d%%)\n" $s $t $n $p $c } -git ls-tree -r "$initial" | -while read mode type sha1 name +empty_tree=$(git hash-object -t tree -w --stdin </dev/null) + +git diff-tree -r --raw $empty_tree $initial -- "$@" | +while read mode_old mode_new sha1_old sha1_new op name do - git blame $opts --porcelain -S "$graft" "$initial" -- "$name" | + git blame $opts --porcelain -S "$graft" "$this..$initial" -- "$name" | sed -ne "s/^\($_x40\) .*/\1/p" | sort | uniq -c | { @@ -57,13 +95,20 @@ do done | { total=0 surviving=0 + test -n "$summary" || printf "%12s %12s %s (survival%%)\n" surviving original path while read s t n do total=$(( $total + $t )) surviving=$(( $surviving + $s )) - # printf "%12d %12d %s\n" $s $t $n + test -n "$summary" || show $s $t $n done - # printf "%12d %12d %s\n" $surviving $total Total - show $surviving $total Total + if test -n "$summary" + then + echo $surviving $total + else + label=Total + show $surviving $total $label + fi + }