| #------------------------------------------------------------------------------------------------------- |
| # Copyright (C) Microsoft. All rights reserved. |
| # Licensed under the MIT license. See LICENSE.txt file in the project root for full license information. |
| #------------------------------------------------------------------------------------------------------- |
| |
| # We will run dos2unix on the argument and make sure that it doesn't change. |
| # If it changes, that means someone introduced a CRLF by not setting core.autocrlf to true. |
| |
| ERRFILE=check_eol.sh.err |
| ERRFILETEMP=$ERRFILE.0 |
| |
| # display a helpful message for someone reading the log |
| echo "Check EOL > Checking $1" |
| |
| if [ ! -e $1 ]; then # the file wasn't present; not necessarily an error |
| echo "WARNING: file not found: $1" |
| exit 0 # don't report an error but don't run the rest of this file |
| fi |
| |
| # We can't rely on dos2unix being installed, so simply grep for the CR octet 0x0d via xxd. |
| # We don't want to simply detect a literal 0d in the file or output so configure xxd to emit |
| # octets in such a way that we can grep for the CR octet and not accidentally detect |
| # text of the file or 0d spanning 2 octets in xxd output (e.g. the 0d in 20d1) |
| xxd -i -c 16 $1 | grep '0x0d' > $ERRFILETEMP |
| if [ $? -eq 0 ]; then # grep found matches ($?==0), so we found CR (0x0d) in the file |
| echo "ERROR: CR (0x0d) was introduced in $1" >> $ERRFILE |
| |
| # Display a user-readable hex dump for context of the problem. |
| # Don't pollute the log with every single matching line, first 10 lines should be enough. |
| echo "Displaying first 10 lines of hex dump where CR (0x0d) was found:" >> $ERRFILE |
| xxd -g 1 $1 | grep -n '0d ' > $ERRFILETEMP |
| head -n 10 $ERRFILETEMP >> $ERRFILE |
| |
| # To help the user, display how many lines of hex output actually contained CR. |
| LINECOUNT=`python -c "file=open('$ERRFILETEMP', 'r'); print len(file.readlines())"` |
| echo "Total hex dump lines containing CR (0x0d): $LINECOUNT" >> $ERRFILE |
| echo "--------------" >> $ERRFILE # same length as '--- ERRORS ---' |
| fi |
| |
| # Check that each file ends in a newline character |
| tail -c1 $1 | od -x | grep '000a' > $ERRFILETEMP |
| if [ $? -ne 0 ]; then # last character is not a newline |
| echo "ERROR: $1 does not end in a new line" >> $ERRFILE |
| fi |
| |
| rm -f $ERRFILETEMP |