package/kernel/mac80211/scripts/import-backports.sh

   1 #!/usr/bin/env bash
   2 BASE=$1; shift
   3
   4 usage() {
   5         echo "Usage: $0 NNN <file>..."
   6         exit 1
   7 }
   8
   9 check_number() {
  10         case "$1" in
  11                 [0-9][0-9][0-9]) return 0;;
  12         esac
  13         return 1;
  14 }
  15
  16 patch_header()
  17 {
  18         awk '
  19         /^(---|\*\*\*|Index:)[ \t][^ \t]|^diff -/ \
  20                 { exit }
  21                 { print }
  22         '
  23 }
  24
  25 strip_diffstat()
  26 {
  27         awk '
  28         /#? .* \| / \
  29                 { eat = eat $0 "\n"
  30                   next }
  31         /^#? .* files? changed(, .* insertions?\(\+\))?(, .* deletions?\(-\))?/ \
  32                 { eat = ""
  33                   next }
  34                 { print eat $0
  35                   eat = "" }
  36         '
  37 }
  38
  39 strip_trailing_whitespace() {
  40         sed -e 's:[ '$'\t'']*$::'
  41 }
  42
  43 fixup_header() {
  44         awk '
  45                 /^From / { next }
  46                 /^Subject: / {
  47                         sub("Subject: \\[[^\]]*\\]", "Subject: [PATCH]")
  48                 }
  49                 { print }
  50         '
  51 }
  52
  53 check_number "$BASE" || usage
  54
  55 quilt series > /dev/null || {
  56         echo "Not in quilt directory"
  57         exit 2
  58 }
  59
  60 get_next() {
  61         NEW=$BASE
  62         quilt series | while read CUR; do
  63                 [ -n "$CUR" ] || break
  64                 CUR=${CUR%%-*}
  65                 check_number "$CUR" || continue
  66                 [ "$CUR" -lt "$NEW" ] && continue
  67                 [ "$CUR" -ge "$(($BASE + 100))" ] && continue
  68                 NEW="$(($CUR + 1))"
  69                 echo $NEW
  70         done | tail -n1
  71 }
  72
  73 CUR=`get_next`
  74 CUR="${CUR:-$BASE}"
  75
  76 while [ -n "$1" ]; do
  77         FILE="$1"; shift
  78         NAME="$(basename $FILE)"
  79         NAME="${NAME#[0-9]*-}"
  80         echo -n "Processing patch $NAME: "
  81
  82         [ -e "$FILE" ] || {
  83                 echo "file $FILE not found"
  84                 exit 1
  85         }
  86
  87         grep -qE "$NAME$" patches/series && {
  88                 echo "already applied"
  89                 continue
  90         }
  91
  92         quilt new "$CUR-$NAME" || exit 1
  93         patch_header < "$FILE" |
  94                 strip_diffstat |
  95                 strip_trailing_whitespace |
  96                 fixup_header > "patches/$CUR-$NAME"
  97
  98         quilt fold < "$FILE" || {
  99                 cp "$FILE" ./cur_patch
 100                 echo "patch $FILE failed to apply, copied to ./cur_patch"
 101                 exit 1
 102         }
 103
 104         quilt refresh -p ab --no-index --no-timestamps
 105
 106         CUR="$(($CUR + 1))"
 107 done
 108
 109 exit 0