#!/bin/bash

#
# Category: Totally Free Stuff
# Author: Hannu E K Nevalainen, Mariefred, Sweden in September 2003
# 
# Verify the output of cygwin 'find'
# 
# Date        Version  Comment
# 2003-09-12  1.0      Made it be slightly more general than prior versions
# 2003-09-13	1.1			 $fn could end up with spaces in it, sed fixes that.


if [ -z "$1" ] ;then
  echo -e "
  use $0 DIRECTORY

    This will launch 'cmd /c dir.exe' -and- '/bin/find.exe' on
    DIRECTORY, performing the necesary conversion and then
    launching /bin/diff.exe on it.

    It creates a bunch of files in the current directory; names as in:
    FIND_TEST_<cygpath -u>.<cygwin1.dll-date>.<file spec>

    <file spec> is:
      (s)dir - (sorted) cmd /c dir.exe <arguments> output
      find   - output of find
      w      - find output, with MS-style paths
      sw     - .w contents sorted
      diff   - output of 'diff -iup' on sdir and sw files

    NOTE: sw and sdir files will ALWAYS have LF line endings."
  exit 1
fi


TESTP="`cygpath -wl \"$1\"`"
TESTPCYG="`cygpath -u ${TESTP}`"
P="`echo ${TESTPCYG} | sed -e 's./.-.g'`"

VOL="`cmd /c dir ${TESTP} | ( read Vol Vol Vol Vol Vol Vol ; echo $Vol )`"
SER="`cmd /c dir ${TESTP} | ( read Ser ; read Ser Ser Ser Ser Ser; echo $Ser )`"


echo "
About to check if 'C:DIR.EXE /AD' and '/BIN/FIND.EXE -TYPE D'
outputs match for ${TESTP} and ${TESTPCYG}
-------------------------------------------------------------"

echo "
*** Generating cygcheck output"
cygcheck -svr >c_svr-snap.txt

echo "
*** grep -i CYGWIN1 from cygcheck output"
grep -i cygwin1 c_svr-snap.txt
D=`grep -i ".bin.cygwin1.dll" c_svr-snap.txt | ( read size D scratch ; echo $D) | sed -e 's./.-.g'`

fn="`echo FIND_CHK.${P}-${VOL}-${SER}.${D} | sed -e 's. ._.g'`"

echo "
*** Generating DIR output"
cmd /c dir /ad /s /b "${TESTP}" >${fn}.dir
sort ${fn}.dir >${fn}.sdir

echo "
*** Generating find output"
find "${TESTPCYG}" -type d >${fn}.find

echo "
*** Converting find output to MS-style paths"
cat ${fn}.find | ( read line; while [ ! -z "$line" ]; \
 do cygpath -w "$line"; read line; done) >${fn}.w
sort ${fn}.w >${fn}.sw 

echo "
*** Generating diff output"
d2u ${fn}.sdir ${fn}.sw  >/dev/null 2>&1
diff -iup ${fn}.sw ${fn}.sdir >${fn}.diff
if [ `wc -l <${fn}.diff` -gt 30 ] ; then
  head -20 ${fn}.diff
  echo "
  <*** SNIP ***>
  "
  tail ${fn}.diff
  echo "
*** `wc -l <${fn}.diff` lines in ${fn}.diff"
else
  cat ${fn}.diff
fi

echo "
*** Counting lines"
wc -l ${fn}.sdir ${fn}.sw 

echo "
*** Remove FILES created of this run with:
 rm ${fn}.*
 
*** See full diff with:
 less ${fn}.diff
 
*** Compare dir/find output with:
 diff -y ${fn}.sw ${fn}.sdir | less"