admin/copyright.sh

   1 #!/bin/bash
   2 #
   3 # This file is part of the GROMACS molecular simulation package.
   4 #
   5 # Copyright (c) 2019, by the GROMACS development team, led by
   6 # Mark Abraham, David van der Spoel, Berk Hess, and Erik Lindahl,
   7 # and including many others, as listed in the AUTHORS file in the
   8 # top-level source directory and at http://www.gromacs.org.
   9 #
  10 # GROMACS is free software; you can redistribute it and/or
  11 # modify it under the terms of the GNU Lesser General Public License
  12 # as published by the Free Software Foundation; either version 2.1
  13 # of the License, or (at your option) any later version.
  14 #
  15 # GROMACS is distributed in the hope that it will be useful,
  16 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18 # Lesser General Public License for more details.
  19 #
  20 # You should have received a copy of the GNU Lesser General Public
  21 # License along with GROMACS; if not, see
  22 # http://www.gnu.org/licenses, or write to the Free Software Foundation,
  23 # Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA.
  24 #
  25 # If you want to redistribute modifications to GROMACS, please
  26 # consider that scientific software is very special. Version
  27 # control is crucial - bugs must be traceable. We will be happy to
  28 # consider code for inclusion in the official distribution, but
  29 # derived work must not be called official GROMACS. Details are found
  30 # in the README & COPYING files - if they are missing, get the
  31 # official version at http://www.gromacs.org.
  32 #
  33 # To help us fund GROMACS development, we humbly ask that you cite
  34 # the research papers on the package. Check out http://www.gromacs.org.
  35
  36 # This script runs copyright header checks on modified files and
  37 # reports/applies the necessary changes.
  38 #
  39 # See `copyright.sh -h` for a brief usage, and docs/dev-manual/code-formatting.rst
  40 # for more details.
  41
  42 # Parse command-line arguments
  43 function usage() {
  44     echo "usage: copyright.sh [-f|--force] [--rev=REV]"
  45     echo "           [--copyright=<cmode>]"
  46     echo "           [--warnings=<file>] [<action>]"
  47     echo "<action>: (check*|diff|update)[-(index|workdir*)] (*=default)"
  48     echo "<cmode>:  off|add|update*|replace|full"
  49 }
  50
  51 action="check-workdir"
  52 declare -a diffargs
  53 baserev="HEAD"
  54 force=
  55 copyright_mode=update
  56 warning_file=
  57 for arg in "$@" ; do
  58     if [[ "$arg" == "check-index" || "$arg" == "check-workdir" || \
  59           "$arg" == "diff-index" || "$arg" == "diff-workdir" || \
  60           "$arg" == "update-index" || "$arg" == "update-workdir" ]]
  61     then
  62         action=$arg
  63     elif [[ "$arg" == "check" || "$arg" == "diff" || "$arg" == "update" ]] ; then
  64         action=$arg-workdir
  65     elif [[ "$action" == diff-* ]] ; then
  66         diffargs+=("$arg")
  67     elif [[ "$arg" == --copyright=* ]] ; then
  68         copyright_mode=${arg#--copyright=}
  69     elif [[ "$arg" == "-f" || "$arg" == "--force" ]] ; then
  70         force=1
  71     elif [[ "$arg" == --rev=* ]] ; then
  72         baserev=${arg#--rev=}
  73     elif [[ "$arg" == --warnings=* ]] ; then
  74         warning_file=${arg#--warnings=}
  75     elif [[ "$arg" == "-h" || "$arg" == "--help" ]] ; then
  76         usage
  77         exit 0
  78     else
  79         echo "Unknown option: $arg"
  80         echo
  81         usage
  82         exit 2
  83     fi
  84 done
  85
  86 # Switch to the root of the source tree and check the config file
  87 srcdir=`git rev-parse --show-toplevel`
  88 pushd $srcdir >/dev/null
  89 admin_dir=$srcdir/admin
  90
  91 # Actual processing starts: create a temporary directory
  92 tmpdir=`mktemp -d -t gmxuncrust.XXXXXX`
  93
  94 # Produce a list of changed files
  95 # Only include files that have proper filter set in .gitattributes
  96 internal_diff_args=
  97 if [[ $action == *-index ]]
  98 then
  99     internal_diff_args="--cached"
 100 fi
 101 git diff-index $internal_diff_args --diff-filter=ACMR $baserev >$tmpdir/difflist
 102 cut -f2 <$tmpdir/difflist | \
 103     git check-attr --stdin filter | \
 104     sed -e 's/.*: filter: //' | \
 105     paste $tmpdir/difflist - | \
 106     grep -E '(complete_formatting|uncrustify|copyright|includesort)$' >$tmpdir/filtered
 107 cut -f2 <$tmpdir/filtered >$tmpdir/filelist_all
 108 grep -E '(complete_formatting|copyright)$' <$tmpdir/filtered | \
 109     cut -f2 >$tmpdir/filelist_copyright
 110 git diff-files --name-only | grep -Ff $tmpdir/filelist_all >$tmpdir/localmods
 111
 112 # Extract changed files to a temporary directory
 113 mkdir $tmpdir/org
 114 if [[ $action == *-index ]] ; then
 115     git checkout-index --prefix=$tmpdir/org/ --stdin <$tmpdir/filelist_all
 116 else
 117     rsync --files-from=$tmpdir/filelist_all $srcdir $tmpdir/org
 118 fi
 119 # Duplicate the original files to a separate directory, where all changes will
 120 # be made.
 121 cp -r $tmpdir/org $tmpdir/new
 122
 123 # Create output file for what was done (in case no messages get written)
 124 touch $tmpdir/messages
 125
 126 # Run uncrustify on the temporary directory
 127 cd $tmpdir/new
 128
 129 # Update the copyright headers using the requested mode
 130 if [[ $copyright_mode != "off" ]] ; then
 131     cpscript_args="--update-year"
 132     case "$copyright_mode" in
 133         year)
 134             ;;
 135         add)
 136             cpscript_args+=" --add-missing"
 137             ;;
 138         update)
 139             cpscript_args+=" --add-missing --update-header"
 140             ;;
 141         replace)
 142             cpscript_args+=" --replace-header"
 143             ;;
 144         full)
 145             cpscript_args+=" --add-missing --update-header --replace-header"
 146             ;;
 147         *)
 148             echo "Unknown copyright mode: $copyright_mode"
 149             exit 2
 150     esac
 151     if [[ $action == check-* ]] ; then
 152         cpscript_args+=" --check"
 153     fi
 154     # TODO: Probably better to invoke python explicitly through a customizable
 155     # variable.
 156     if ! $admin_dir/copyright.py -F $tmpdir/filelist_copyright $cpscript_args >>$tmpdir/messages
 157     then
 158         echo "Copyright checking failed!"
 159         rm -rf $tmpdir
 160         exit 2
 161     fi
 162 fi
 163
 164 cd $tmpdir
 165
 166 # If a diff was requested, show it and we are done
 167 if [[ $action == diff-* ]] ; then
 168     git diff --no-index --no-prefix "${diffargs[@]}" org/ new/
 169     rm -rf $tmpdir
 170     exit 0
 171 fi
 172
 173 # Find the changed files
 174 git diff --no-index --name-only --exit-code org/ new/ | \
 175     sed -e 's#new/##' > $tmpdir/changed
 176 changes=
 177 if [[ -s $tmpdir/changed ]]
 178 then
 179     changes=1
 180 fi
 181
 182 # Check if changed files have changed outside the index
 183 if grep -Ff $tmpdir/localmods $tmpdir/changed > $tmpdir/conflicts
 184 then
 185     awk '{print $0 ": has changes in work tree"}' $tmpdir/conflicts \
 186         >> $tmpdir/messages
 187     if [[ ! $force && $action == update-* ]] ; then
 188         echo "Modified files found in work tree, skipping update. Use -f to override."
 189         echo "The following would have been done:"
 190         sort $tmpdir/messages
 191         rm -rf $tmpdir
 192         exit 2
 193     fi
 194 fi
 195
 196 # Update the index/work tree if requested
 197 if [[ $action == update-index ]] ; then
 198     grep -Ff $tmpdir/changed $tmpdir/filtered > $tmpdir/tohash
 199     cd $tmpdir/new
 200     IFS='
 201 '
 202     for change in `cut -f2 $tmpdir/tohash | \
 203                    git --git-dir=$srcdir/.git hash-object -w --stdin-paths --no-filters | \
 204                    paste - $tmpdir/tohash`
 205     do
 206         # NOTE: the patterns below contain literal tabs
 207         sha1=${change%% *}
 208         rest=${change#* }
 209         mode=${rest:8:6}
 210         path=${rest#*   }
 211         path=${path%%   *}
 212         # Contains a literal tab
 213         echo "$mode $sha1       $path" >> $tmpdir/toindex
 214     done
 215     unset IFS
 216     git --git-dir=$srcdir/.git update-index --index-info < $tmpdir/toindex
 217 elif [[ $action == update-workdir ]] ; then
 218     rsync --files-from=$tmpdir/changed $tmpdir/new/ $srcdir/
 219 fi
 220
 221 # Get back to the original directory
 222 popd >/dev/null
 223
 224 # Report what was done
 225 sort $tmpdir/messages | tee $warning_file
 226
 227 rm -rf $tmpdir
 228 exit $changes