debian/scripts/misc/gen-auto-reconstruct

   1 #!/bin/bash
   2
   3 if [ "$#" -ne 3 ]; then
   4         echo "Usage: $0 <orig tag>|<base release> <reconstruct> <options>" 1>&2
   5         exit 1
   6 fi
   7 tag="$1"
   8 reconstruct="$2"
   9 options="$3"
  10
  11 case "$tag" in
  12 v*)     ;;
  13 *)      tag="v${tag%.*}" ;;
  14 esac
  15
  16 # Validate the tag.
  17 count=$( git tag -l "$tag" | wc -l )
  18 if [ "$count" != 1 ]; then
  19         echo "$0: $tag: tag invalid" 1>&2
  20         exit 1
  21 fi
  22
  23 #git ls-tree -r --full-tree HEAD | grep ^120 | \
  24 #while read mode type blobid name
  25
  26 (
  27         # Identify all new symlinks since the proffered tag.
  28         echo "# Recreate any symlinks created since the orig."
  29         git diff "$tag.." --raw --no-renames | awk '(/^:000000 120000/ && $5 == "A") { print $NF }' | \
  30         while read name
  31         do
  32                 link=$( readlink "$name" )
  33
  34                 echo "[ ! -L '$name' ] && ln -sf '$link' '$name'"
  35         done
  36
  37         # Identify all removed files since the proffered tag.
  38         echo "# Remove any files deleted from the orig."
  39         git diff "$tag.." --raw --no-renames | awk '(/^:/ && $5 == "D") { print $NF }' | \
  40         while read name
  41         do
  42                 echo "rm -f '$name'"
  43         done
  44
  45         # All done, make sure this does not complete in error.
  46         echo "exit 0"
  47 ) >"$reconstruct"
  48
  49 (
  50         # Identify all new symlinks since the proffered tag.
  51         echo "# Ignore any symlinks created since the orig which are rebuilt by reconstruct."
  52         git diff "$tag.." --raw --no-renames | awk '(/^:000000 120000/ && $5 == "A") { print $NF }' | \
  53         while read name
  54         do
  55                 echo "extend-diff-ignore=^$name\$"
  56         done
  57 ) >"$options.update"
  58
  59
  60 head='^## autoreconstruct -- begin$'
  61 foot='^## autoreconstruct -- end$'
  62 sed -i -e "
  63         /$head/,/$foot/{
  64                 /$head/{
  65                         p;
  66                         r $options.update
  67                 };
  68                 /$foot/p;
  69                 d
  70         }
  71 " "$options"
  72 rm -f "$options.update"