#!/bin/sh
#
# Copyright by The HDF Group.
# Copyright by the Board of Trustees of the University of Illinois.
# All rights reserved.
#

# Check that all the files in MANIFEST exist and that (if this is a
# SVN checkout) that all the SVN-managed files appear in the
# MANIFEST.

verbose=yes
MANIFEST=/tmp/HD_MANIFEST.$$
SVNENTRY=/tmp/HD_SVNENTRY.$$

# function definitions


# Main
test "$verbose" && echo "   Checking MANIFEST..." 1>&2
# clean up $MANIFEST file when exits
trap "rm -f $MANIFEST" 0

# First make sure i am in the directory in which there is an MANIFEST file
# and then do the checking from there.  Will try the following,
# current directory, parent directory, the directory this command resides.
if [ -f MANIFEST ]; then
    continue
elif [ -f ../MANIFEST ]; then
    cd ..
else
    commanddir=`dirname $0`
    if [ -d "$commanddir" -a -f $commanddir/MANIFEST ]; then
	cd $commanddir
	continue
    else
	echo MANIFEST file not found. Abort.
	exit 1
    fi
fi

# Check for duplicate entries.  This can be done at any time, but it may as
# well be sooner so that if something else fails the presence of duplicates
# will already be known.
errcode=0
DUPLICATES=`perl -ne 's/#.*//; next if /^\s*$/; if ($uniq{$_}++) { print $_; }' MANIFEST`
if [ "$DUPLICATES" ]; then
   cat 1>&2 <<EOF
These entries appear more than once in the MANIFEST:
$DUPLICATES
Please remove the duplicate lines and try again.

EOF
errcode=1
fi

# Copy the manifest file to get a list of file names.
grep '^\.' MANIFEST | expand | cut -f1 -d' ' >$MANIFEST

for file in `cat $MANIFEST`; do
    if [ ! -f $file ]; then
       echo "- $file"
       fail=yes
    fi
done


# Next check git ls-files, which gets a list of all files that are
# checked in and staged to be committed.
git_ls=`git ls-files`
for file in $git_ls; do
    path="./${file}"
    # Ignore directories
    if [ ! -d $path ]; then
        if (grep ^$path$ $MANIFEST >/dev/null); then
            :
        else
            echo "+ $path"
            fail=yes
        fi
    fi
done

if [ "X$fail" = "Xyes" ]; then
    cat 1>&2 <<EOF
The MANIFEST is out of date. Files marked with a minus sign (-) no
longer exist; files marked with a plus sign (+) are SVN-managed but do
not appear in the MANIFEST.  Please remedy the situation and try again.
EOF
    exit 1
fi

if [ $errcode -gt 0 ]; then
    exit $errcode
fi

test "$verbose" && echo "   The MANIFEST is up to date." 1>&2
exit 0