scripts/update-patches

   1 #!/usr/bin/env mksh
   2 #-
   3 # Copyright (c) 2014
   4 #       Thorsten Glaser <tg@mirbsd.org>
   5 # Copyright (c) 2006
   6 #       Thorsten Glaser <tg@freewrt.org>
   7 #
   8 # Derived from the MirPorts Framework "update-patches" script:
   9 #
  10 # Copyright (c) 2003, 2004, 2005
  11 #       Thorsten "mirabile" Glaser <tg@MirBSD.de>
  12 # Based upon code and idea (c) 2000
  13 #       Marc Espie for the OpenBSD project. All rights reserved.
  14 #
  15 # Provided that these terms and disclaimer and all copyright notices
  16 # are retained or reproduced in an accompanying document, permission
  17 # is granted to deal in this work without restriction, including un-
  18 # limited rights to use, publicly perform, distribute, sell, modify,
  19 # merge, give away, or sublicence.
  20 #
  21 # This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
  22 # the utmost extent permitted by applicable law, neither express nor
  23 # implied; without malicious intent or gross negligence. In no event
  24 # may a licensor, author or contributor be held liable for indirect,
  25 # direct, other damage, loss, or other issues arising in any way out
  26 # of dealing in the work, even if advised of the possibility of such
  27 # damage or existence of a defect, except proven that it results out
  28 # of said person's immediate fault when using the work as intended.
  29
  30 do_diff() {
  31         local f1=$2/$1
  32         local f2=$3/$1
  33
  34         if [[ ! -e $f1 ]]; then
  35                 [[ -d ${f1%/*}/. ]] || mkdir -p "${f1%/*}"
  36                 if [[ ! -s $f2 ]]; then
  37                         cat <<EOF
  38 --- $f1 (non-existant)
  39 +++ $f2 (empty)
  40 @@ -0,0 +0,0 @@
  41 EOF
  42                         return 0
  43                 fi
  44                 touch -t 197001010000.00 "$f1"
  45         fi
  46         diff -adup "$f1" "$f2"
  47         return $?
  48 }
  49
  50 set -A accounted
  51 set -A edit
  52
  53 TRANSFORM='sed s/[.+]/\\\\&/g'
  54 PATCHDIR=$CURDIR/patches
  55 EXTRADIR=$CURDIR/extra
  56
  57 mkdir -p "$PATCHDIR"
  58
  59 SUBDIST=${WRKDIST##${WRKDIR1}?(/)}
  60 if [[ -n $SUBDIST ]]; then
  61         mv "${WRKDIR1}.orig/${SUBDIST}" "${WRKDIR1}/${SUBDIST}.orig"
  62         D_BASE=${WRKDIR1}
  63         D_SUB=${SUBDIST}
  64 #       D_SUBP=$D_SUB
  65         D_SUBP='[^/]*'
  66         D_CMP=$D_SUBP
  67 else
  68         # WRKSRC == WRKDIR
  69         D_BASE=$(dirname "${WRKDIR1}")
  70         D_SUB=$(basename "${WRKDIR1}")
  71         D_SUBP=$D_SUB
  72         D_CMP=
  73 fi
  74 ORGDIST=${D_BASE}/${D_SUB}.orig
  75
  76 if [[ -e $WRKDIST/.patched-newfiles ]]; then
  77         touch "$ORGDIST/.patched-newfiles"
  78         patch_newfiles=1
  79 else
  80         patch_newfiles=0
  81 fi
  82
  83 if [[ -e $WRKDIST/../.autoreconf_done ]]; then
  84         touch "$ORGDIST/.autoreconf_done"
  85 fi
  86
  87 DIFF_FLAGS="-adu -I \"^--- $(print -r -- "$D_SUBP.orig/" | $TRANSFORM)@@        .*\""
  88 DIFF_FLAGS="$DIFF_FLAGS -I \"^\+\+\+ $(print -r -- "$D_SUBP/" | $TRANSFORM)@@   .*\""
  89
  90 (cd "${WRKDIST}"; find . -type f -print0) |&
  91 while IFS= read -p -d '' -r file; do
  92         file=${file#./}
  93         [[ ! -e $ORGDIST/$file && $patch_newfiles = 0 ]] && continue
  94         for i in $DIFF_IGNOREFILES; do
  95                 [[ $file = $i ]] && continue 2
  96         done
  97         cmp -s "$ORGDIST/$file" "$WRKDIST/$file" && continue
  98         print -ru2 -- "Processing ${file}..."
  99         # look in patchdir for an existing patchfile matching this
 100         cd "$PATCHDIR"
 101         for i in $PATCH_LIST; do
 102                 # Ignore non-files, or old backup
 103                 [[ ! -f $i || $i = *@(.orig|.rej|~) ]] && continue
 104
 105                 # Patch found. Is this the one?
 106                 if grep "^[+-][+-][+-] $D_CMP[^/]*/$file        " "$i" >/dev/null; then
 107                         # Multiple files in the diff?
 108                         if [[ $(grep -c "^--- $D_CMP" "$i") -gt 1 || \
 109                             $(grep -c "^+++ $D_CMP" "$i") -gt 1 ]]; then
 110                                 print -ru2 -- "Cannot process, $i contains patches"
 111                                 print -ru2 -- "to multiple files! Aborting."
 112                                 print -n 'FAIL\0'
 113                                 [[ -n $SUBDIST ]] && mv \
 114                                     "${WRKDIR1}/${SUBDIST}.orig" \
 115                                     "${WRKDIR1}.orig/${SUBDIST}"
 116                                 exit 0
 117                         fi
 118                         # Multiple diffs with this file?
 119                         let n=0
 120                         pflst=
 121                         for j in $PATCH_LIST; do
 122                                 [[ ! -f $j || $j = *@(.orig|.rej|~) ]] && \
 123                                     continue
 124                                 grep "^[+-][+-][+-] $D_CMP[^/]*/$file   " \
 125                                     "$j" >/dev/null || continue
 126                                 let n++
 127                                 pflst="$pflst '$j'"
 128                         done
 129                         if (( n != 1 )); then
 130                                 print -ru2 -- "Cannot process, file $file"
 131                                 print -ru2 -- "is contained in multiple patches:"
 132                                 print -ru2 -- "$pflst"
 133                                 print -n 'FAIL\0'
 134                                 [[ -n $SUBDIST ]] && mv \
 135                                     "${WRKDIR1}/${SUBDIST}.orig" \
 136                                     "${WRKDIR1}.orig/${SUBDIST}"
 137                                 exit 0
 138                         fi
 139                         # No, process this patch
 140
 141                         accounted+=("$i")
 142                         # found it, copy preamble before comparision
 143                         ( sed -e "/^--- /,\$d" <"$i"; \
 144                           cd "$D_BASE" && do_diff "$file" "$D_SUB.orig" "$D_SUB" \
 145                         ) >"$i.new"
 146                         # did it change? mark it as changed
 147                         tfile=$(print -r -- "$file" | $TRANSFORM)
 148                         if eval diff "$(print -r -- "${DIFF_FLAGS}" | sed \
 149                             "s#@@#${tfile}#g")" '"$i" "$i.new"' 1>&2; then
 150                                 rm "$i.new"
 151                         else
 152                                 print -ru2 -- "Patch $i for $file updated"
 153                                 mv "$i" "$i.orig"
 154                                 mv "$i.new" "$i"
 155                                 edit+=("$i")
 156                         fi
 157                         continue 2
 158                 fi
 159         done
 160
 161         # Build a sensible name for the new patch file
 162         patchname=patch-${file//[\/.\x01- ]/_}
 163         print -ru2 -- "No patch-* found for $file, creating $patchname"
 164         ( cd "$D_BASE" && do_diff "$file" "$D_SUB.orig" "$D_SUB" ) >"$patchname"
 165         edit+=("$patchname")
 166         accounted+=("$patchname")
 167 done
 168
 169 # Verify all patches accounted for
 170 cd "$PATCHDIR"
 171 for i in *; do
 172         [[ ! -f $i || $i = *@(.orig|.rej|~) ]] && continue
 173         grep '^\\ No newline at end of file' "$i" >/dev/null && \
 174             print -ru2 -- "*** Patch $i needs manual intervention"
 175         found=0
 176         for j in "${accounted[@]}"; do
 177                 [[ $i = "$j" ]] || continue
 178                 found=1
 179                 break
 180         done
 181         (( found )) || print -ru2 -- "*** Patch $i not accounted for"
 182 done
 183
 184 for i in "${edit[@]}"; do
 185         print -nr -- "$i"
 186         print -n '\0'
 187 done
 188 [[ -n $SUBDIST ]] && mv "${WRKDIR1}/${SUBDIST}.orig" "${WRKDIR1}.orig/${SUBDIST}"
 189 exit 0