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 [ -k ] [ -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 keep_subject= query_apply= continue= resume=t
  22 while case "$#" in 0) break ;; esac
  23 do
  24         case "$1" in
  25         -k)     keep_subject=-k ;;
  26         -q)     query_apply=t ;;
  27         -c)     continue="$2"; resume=f; shift ;;
  28         -*)     usage ;;
  29         *)      break ;;
  30         esac
  31         shift
  32 done
  33
  34 case "$continue" in
  35 '')
  36         rm -rf .dotest
  37         mkdir .dotest
  38         git-mailsplit "$1" .dotest || exit 1
  39         shift
  40 esac
  41
  42 case "$query_apply" in
  43 t)      touch .dotest/.query_apply
  44 esac
  45 case "$keep_subject" in
  46 -k)     : >.dotest/.keep_subject
  47 esac
  48
  49 signoff="$1"
  50 set x .dotest/0*
  51 shift
  52 while case "$#" in 0) break;; esac
  53 do
  54     i="$1"
  55     case "$resume,$continue" in
  56     f,$i)       resume=t;;
  57     f,*)        continue;;
  58     *)
  59             git-mailinfo $keep_subject \
  60                 .dotest/msg .dotest/patch <$i >.dotest/info || exit 1
  61             git-stripspace < .dotest/msg > .dotest/msg-clean
  62             ;;
  63     esac
  64     while :; # for fixing up and retry
  65     do
  66         git-applypatch .dotest/msg-clean .dotest/patch .dotest/info "$signoff"
  67         case "$?" in
  68         0 | 2 )
  69                 # 2 is a special exit code from applypatch to indicate that
  70                 # the patch wasn't applied, but continue anyway
  71                 ;;
  72         *)
  73                 ret=$?
  74                 if test -f .dotest/.query_apply
  75                 then
  76                         echo >&2 "* Patch failed."
  77                         echo >&2 "* You could fix it up in your editor and"
  78                         echo >&2 "  retry.  If you want to do so, say yes here"
  79                         echo >&2 "  AFTER fixing .dotest/patch up."
  80                         echo >&2 -n "Retry [y/N]? "
  81                         read yesno
  82                         case "$yesno" in
  83                         [Yy]*)
  84                                 continue ;;
  85                         esac
  86                 fi
  87                 exit $ret
  88         esac
  89         break
  90     done
  91     shift
  92 done
  93 # return to pristine
  94 rm -fr .dotest