tools/git-applymbox

   1 #!/bin/sh
   2 ##
   3 ## "dotest" is my stupid name for my patch-application script, which
   4 ## I never got around to renaming after I tested it. We're now on the
   5 ## second generation of scripts, still called "dotest".
   6 ##
   7 ## Update: Ryan Anderson finally shamed me into naming this "applymbox".
   8 ##
   9 ## You give it a mbox-format collection of emails, and it will try to
  10 ## apply them to the kernel using "applypatch"
  11 ##
  12 ## applymbox [ -q ] (-c .dotest/msg-number | mail_archive) [Signoff_file]"
  13 ##
  14 ## The patch application may fail in the middle.  In which case:
  15 ## (1) look at .dotest/patch and fix it up to apply
  16 ## (2) re-run applymbox with -c .dotest/msg-number for the current one.
  17 ## Pay a special attention to the commit log message if you do this and
  18 ## use a Signoff_file, because applypatch wants to append the sign-off
  19 ## message to msg-clean every time it is run.
  20
  21 query_apply= continue= resume=t
  22 while case "$#" in 0) break ;; esac
  23 do
  24         case "$1" in
  25         -q)     query_apply=t ;;
  26         -c)     continue="$2"; resume=f; shift ;;
  27         -*)     usage ;;
  28         *)      break ;;
  29         esac
  30         shift
  31 done
  32
  33 case "$continue" in
  34 '')
  35         rm -rf .dotest
  36         mkdir .dotest
  37         git-mailsplit "$1" .dotest || exit 1
  38         shift
  39 esac
  40
  41 case "$query_apply" in
  42 t)      touch .dotest/.query_apply
  43 esac
  44
  45 signoff="$1"
  46 set x .dotest/0*
  47 shift
  48 while case "$#" in 0) break;; esac
  49 do
  50     i="$1"
  51     case "$resume,$continue" in
  52     f,$i)       resume=t;;
  53     f,*)        continue;;
  54     *)
  55             git-mailinfo .dotest/msg .dotest/patch <$i >.dotest/info || exit 1
  56             git-stripspace < .dotest/msg > .dotest/msg-clean
  57             ;;
  58     esac
  59     while :; # for fixing up and retry
  60     do
  61         git-applypatch .dotest/msg-clean .dotest/patch .dotest/info "$signoff"
  62         case "$?" in
  63         0 | 2 )
  64                 # 2 is a special exit code from applypatch to indicate that
  65                 # the patch wasn't applied, but continue anyway
  66                 ;;
  67         *)
  68                 ret=$?
  69                 if test -f .dotest/.query_apply
  70                 then
  71                         echo >&2 "* Patch failed."
  72                         echo >&2 "* You could fix it up in your editor and"
  73                         echo >&2 "  retry.  If you want to do so, say yes here"
  74                         echo >&2 "  AFTER fixing .dotest/patch up."
  75                         echo >&2 -n "Retry [y/N]? "
  76                         read yesno
  77                         case "$yesno" in
  78                         [Yy]*)
  79                                 continue ;;
  80                         esac
  81                 fi
  82                 exit $ret
  83         esac
  84         break
  85     done
  86     shift
  87 done
  88 # return to pristine
  89 rm -fr .dotest