| 1 | #!/bin/bash |
| 2 | set -e |
| 3 | |
| 4 | # stg-fold-files-from - picks changes to one file from another patch. |
| 5 | # Only supports picking from one file pattern, but allows to select any range |
| 6 | # of hunks from the file, using the -# flag to filterdiff. |
| 7 | # Use together with "filterdiff --annotate" in your diff pager, to |
| 8 | # identify hunk numbers easily. |
| 9 | # Use "-O -U<n>" to get finer hunk granularity for -#<n>. |
| 10 | |
| 11 | # usage: stg-fold-files-from <patch> [-n] [-O <stg-show-flags>] [-#<n>[-<n>][,<n>]...] <file-pattern> |
| 12 | |
| 13 | # Copyright (c) 2006-2007 Yann Dirson <ydirson@altern.org> |
| 14 | # Subject to the GNU GPL, version 2. |
| 15 | |
| 16 | PATCH="$1" |
| 17 | shift |
| 18 | |
| 19 | filtercmd=cat |
| 20 | hunks= |
| 21 | foldflags= |
| 22 | showflags=() |
| 23 | noact=0 |
| 24 | while [ "$#" -gt 0 ]; do |
| 25 | case "$1" in |
| 26 | -\#*) hunks="$1" ;; |
| 27 | -t) foldflags="-t" ;; |
| 28 | -n) noact=1 ;; |
| 29 | -O) showflags+=(-O "$2"); shift ;; |
| 30 | -*) { echo >&2 "unknown flag '$1'"; exit 1; } ;; |
| 31 | *) break ;; |
| 32 | esac |
| 33 | shift |
| 34 | done |
| 35 | [ "$#" = 1 ] || { echo >&2 "supports one file only"; exit 1; } |
| 36 | |
| 37 | getpatch() |
| 38 | { |
| 39 | stg show "${showflags[@]}" "$PATCH" | filterdiff -p1 $hunks -i "$1" |
| 40 | } |
| 41 | |
| 42 | if [ $noact = 1 ]; then |
| 43 | getpatch "$1" |
| 44 | else |
| 45 | getpatch "$1" | stg fold $foldflags |
| 46 | fi |