configure

#!/bin/sh -

# Heredoc script for pre-commit hook.
cat_script () {
cat > $1 <<'EndOfScriptBody'
#!/bin/sh

DESCRUPDT=$(git status | grep DESCRIPTION)
REVLINE=$(grep "^Revision:" DESCRIPTION)
if [ -n "$REVLINE" -a -n "${DESCRUPDT%%\?*}" ]; then
  cat <<NoCommit

  Cannot commit DESCRIPTION file with a Revision line.
  To be able to commit you must first delete the line.

  Revision was automatically added during R CMD INSTALL.
  For future installs use:

                 R CMD INSTALL --clean

NoCommit
  exit 1
fi
exit 0
EndOfScriptBody
return 0
}

# Check if repository is dirty.
CLEAN=$(git status | grep "working directory clean")
if [ -z "$CLEAN" ]; then
   echo "\nGit repository is dirty."
   echo "Commit or clean changes before install.\n"
   exit 1
fi

GIT=${GIT_DIR:-.git}
if [ -e "$GIT/hooks/pre-commit" ]; then
   HASSCRIPT=$(grep 'DESCRUPDT' .git/hooks/pre-commit)
   if [ -z "$HASSCRIPT" ]; then
      cp -p $GIT/hooks/pre-commit.sample $GIT/hooks/pre-commit.tmp
      echo "\nThere is already a pre-commit hoook in $GIT/hooks"
      echo "To install the package, you must insert the following"
      echo "lines in your current pre-commit hook (saved in file"
      echo "$GIT/hooks/pre-commit.tmp for your convenience):\n"
      cat_script $GIT/hooks/pre-commit.tmp
      cat $GIT/hooks/pre-commit.tmp
      exit 1
   fi
else
   # Create pre-commit from pre-commit.sample
   cp -p $GIT/hooks/pre-commit.sample $GIT/hooks/pre-commit
   cat_script $GIT/hooks/pre-commit
   echo "\nInstalled commit-lock safety to prevent"
   echo "commiting changes caused by install process."
   echo "Install package with R CMD INSTALL --clean"
   echo "to unlock the safety.\n"
fi

DESCRIBE=$(git describe)
# Example: "0.1-12-gbf0cb40"
DATE=$(git log --max-count=1 --date=iso HEAD | grep "^Date")
# Example: "Date: 2011-10-15 10:52:09 +0200"

sed -i /^Date:/d DESCRIPTION
echo "$DATE" >> DESCRIPTION
echo "Revision: $DESCRIBE" >> DESCRIPTION

exit 0