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f7f904e4fd
For a long time I've had this in my ~/.gitconfig:
[core]
whitespace = space-before-tab,indent-with-non-tab,trailing-space
which causes git to show me if I muck up and use spaces instead of
tabs, or leave in trailing whitespace. I find this really useful.
I recently proposed adding something like this to the .gitattributes
files for the GDB sub-directories (gdb, gdbsupport, and gdbserver)[1],
however, the question was asked - couldn't this be done at the top
level?
So, in this commit, I propose to update the top-level .gitattributes
file, after this commit, any git diff on a C, C++, Expect, or TCL
source file, will highlight the following whitespace errors:
(a) Use a space before a tab at the start of a line,
(b) Use of spaces where a tab could be used at the start of a line,
and
(c) Any trailing whitespace.
Errors are only highlighted in the diff on new or modified lines, so
you don't get spammed for errors on context lines that you haven't
modified.
The only downside I see to adding this at the top level is if there
are any sub-directories that don't follow the tabs/spaces indentation
rules very well already, in those directories you'll end up hitting
issues any time you edit a line. For GDB we're usually pretty good,
so having this highlighting isn't an issue.
[1] https://sourceware.org/pipermail/gdb-patches/2022-July/190843.html
README for GNU development tools This directory contains various GNU compilers, assemblers, linkers, debuggers, etc., plus their support routines, definitions, and documentation. If you are receiving this as part of a GDB release, see the file gdb/README. If with a binutils release, see binutils/README; if with a libg++ release, see libg++/README, etc. That'll give you info about this package -- supported targets, how to use it, how to report bugs, etc. It is now possible to automatically configure and build a variety of tools with one command. To build all of the tools contained herein, run the ``configure'' script here, e.g.: ./configure make To install them (by default in /usr/local/bin, /usr/local/lib, etc), then do: make install (If the configure script can't determine your type of computer, give it the name as an argument, for instance ``./configure sun4''. You can use the script ``config.sub'' to test whether a name is recognized; if it is, config.sub translates it to a triplet specifying CPU, vendor, and OS.) If you have more than one compiler on your system, it is often best to explicitly set CC in the environment before running configure, and to also set CC when running make. For example (assuming sh/bash/ksh): CC=gcc ./configure make A similar example using csh: setenv CC gcc ./configure make Much of the code and documentation enclosed is copyright by the Free Software Foundation, Inc. See the file COPYING or COPYING.LIB in the various directories, for a description of the GNU General Public License terms under which you can copy the files. REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info on where and how to report problems.