src/usr.bin/diff/tests, branch releng/12.0

diff(1): Implement -B/--ignore-blank-lines

2018-08-19T03:57:20Z

As noted by cem in r338035, coccinelle invokes diff(1) with the -B flag. This was not previously implemented here, so one was forced to create a link for GNU diff to /usr/local/bin/diff Implement the -B flag and add some primitive tests for it. It is implemented in the same fashion that -I is implemented; each chunk's lines are scanned, and if a non-blank line is encountered then the chunk will be output. Otherwise, it's skipped. MFC after: 2 weeks

Improve --strip-trailing-cr handling:

2018-07-27T05:21:20Z

- Advance ctold for f1 and ctnew for f2 - ungetc() if the character is unexpected - Don't break early when we hit the combination on one side PR: 230049 Reported by: maskray Reviewed by: bapt, maskray MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D16451

DIRDEPS_BUILD: Connect new directories.

2017-10-31T00:04:07Z

Use more flexible expression for replacing t_diff in

2017-07-19T18:30:16Z

contrib/netbsd-tests/usr.bin/diff/t_diff.sh with the name of the script via `basename $0`. This was a change I forgot to port over from ^/head/gnu/usr.bin/diff/tests/Makefile@r272787.

Add tests that exercise -q, like -rq and add tests that test -q like -Nrq

2017-07-17T18:07:53Z

MFC after: 2 months MFC with: r321076, r321077, r321078

Add some tests for brief (--brief/-q) format

2017-07-17T17:50:50Z

MFC after: 2 months MFC with: r321076

Add some testcases for `diff --side-by-side` support

2017-06-12T05:11:43Z

These are were created proactively, in anticipation of the support being fully implemented sometime in the future. The tests currently fail on ^/head@r319845, however. Expect them to fail. PR: 219933 Tested with: gdiff

Implement a basic --changed-group-format

2017-04-20T14:22:33Z

etcupdate(8) requires that option, while GNU diff supports many more variation of that options, their behaviour beside the simple verion implemented here are quite inconsistent as such I do not plan to implement those. The only special keyword supported by this implementation are: %< and %> %= is not implemented as the documentation of GNU diff says: common lines, but it actually when tested print the changes from the first file

Add a regression test for diff -D

2017-04-20T11:32:18Z

diff: Show nanoseconds in -u/-c header line.

2017-03-26T19:47:43Z

Show nanoseconds in the -u/-c header line. The present portability conditionals cannot handle the POSIX standard st_mtim, so remove them and unconditionally use st_mtim. PR: 218018 Reported by: jbeich Reviewed by: bapt Differential Revision: https://reviews.freebsd.org/D10145