debian/scripts/import-upstream-tag

   1 #!/bin/bash
   2
   3 set -e
   4
   5 top=$(pwd)
   6
   7 # parameters
   8 kernel_submodule=
   9 kernel_patchdir=
  10 new_tag=
  11 rebase=
  12
  13 # generated based on new_tag
  14 pq_branch=
  15 # previously checked out in submodule
  16 old_ref=
  17
  18 function cleanup_pq_branch {
  19     if [[ -n $pq_branch ]]; then
  20         echo "cleaning up PQ branch '$pq_branch'"
  21         cd "${top}/${kernel_submodule}"
  22         git checkout --quiet $old_ref
  23         git reset --hard
  24         git branch -D "$pq_branch"
  25     fi
  26 }
  27
  28 function error_exit {
  29     echo "$1"
  30     set +e
  31
  32     cleanup_pq_branch
  33
  34     cd "${top}"
  35
  36     exit 1
  37 }
  38
  39 if [[ "$#" -lt 3 || "$#" -gt 4 ]]; then
  40     echo "USAGE: $0 submodule patchdir tag [rebase]"
  41     echo "\t fetches and checks out 'tag' in 'submodule'"
  42     echo "\t if 'rebase' is given, imports, rebases and exports patchqueue from 'patchdir' as well"
  43     exit 1
  44 fi
  45
  46 kernel_submodule=$1
  47 if [ ! -d "${kernel_submodule}" ]; then
  48     error_exit "'${kernel_submodule}' must be a directory!"
  49 fi
  50
  51 kernel_patchdir=$2
  52 if [ ! -d "${kernel_patchdir}" ]; then
  53     error_exit "'${kernel_patchdir}' must be a directory!"
  54 fi
  55
  56 new_tag=$3
  57 rebase=$4
  58
  59 if [[ -n $(git status --untracked-files=no --porcelain) ]]; then
  60     error_exit "working directory unclean, aborting"
  61 fi
  62
  63
  64 cd "${kernel_submodule}"
  65 ## check for tag and fetch if needed
  66 echo "checking for tag '${new_tag}'"
  67 if [[ -z $(git tag -l "${new_tag}") ]]; then
  68     echo "tag not found, fetching and retrying"
  69     git fetch --tags
  70 fi
  71 if [[ -z $(git tag -l "${new_tag}") ]]; then
  72     error_exit "tag not found, aborting"
  73 fi
  74 echo "tag found"
  75 cd "${top}"
  76
  77 if [[ -n "$rebase" ]]; then
  78     echo ""
  79     echo "automatic patchqueue rebase enabled"
  80     cd "${kernel_submodule}"
  81     ## preparing patch queue branch
  82     old_ref=$(git rev-parse HEAD)
  83     pq_branch="auto_pq/${new_tag}"
  84     cd "${top}"
  85
  86     echo "previous HEAD: ${old_ref}"
  87
  88     echo ""
  89     "${top}/debian/scripts/import-patchqueue" "${kernel_submodule}" "${kernel_patchdir}" "${pq_branch}" || error_exit "failed to import patchqueue"
  90
  91     cd "${kernel_submodule}"
  92     ## rebase patches
  93     echo ""
  94     echo "rebasing patchqueue on top of '${new_tag}'"
  95     git rebase "${new_tag}"
  96     cd "${top}"
  97
  98     ## regenerate exported patch queue
  99     echo ""
 100     "${top}/debian/scripts/export-patchqueue" "${kernel_submodule}" "${kernel_patchdir}" "${new_tag}" || error_exit "failed to export patchqueue"
 101
 102     cleanup_pq_branch
 103     cd "${top}"
 104     pq_branch=
 105 fi
 106
 107 cd "${kernel_submodule}"
 108 echo ""
 109 echo "checking out '${new_tag}' in submodule"
 110 git checkout --quiet "${new_tag}"
 111 cd "${top}"
 112
 113 echo ""
 114 echo "committing results"
 115 git commit --verbose -s -m "update sources to ${new_tag}" -m "(generated with debian/scripts/import-upstream-tag)" "${kernel_submodule}"
 116 if [[ -n "$rebase" ]]; then
 117     git add "${kernel_patchdir}"
 118     git commit --verbose -s -m "rebase patches on top of ${new_tag}" -m "(generated with debian/scripts/import-upstream-tag)" "${kernel_patchdir}"
 119 fi