Over at Can you modify text files when committing to subversion? Grant suggested that I block commits instead.
However I don't know how to check a file ends with a newline. How can you detect that the file ends with a newline?
Worked for me:
tail -n 1 /path/to/newline_at_end.txt | wc --lines
# according to "man wc" : --lines - print the newline counts
So wc counts number of newline chars, which is good in our case. The oneliner prints either 0 or 1 according to presence of newline at the end of the file.
Using only bash:
x=`tail -n 1 your_textfile`
if [ "$x" == "" ]; then echo "empty line"; fi
(Take care to copy the whitespaces correctly!)
@grom:
tail does not return an empty line
Damn. My test file didn't end on \n but on \n\n. Apparently vim can't create files that don't end on \n (?). Anyway, as long as the “get last byte” option works, all's well.