Re: [PATCH 1/2] git-gui: warn if the commit message contains lines longer than the set limit

[Bert Wesarg <bert.wesarg@googlemail.com>]

On Tue, Sep 10, 2019 at 6:50 PM Johannes Sixt <j6t@kdbg.org> wrote:
>
> Am 04.09.19 um 22:10 schrieb Bert Wesarg:
> > The commit message widget does not wrap the next and has a configurable
> > fixed width to avoid creating too wide commit messages. Though this was
> > only enforced in the GUI. Now we also check the commit message at commit
> > time for long lines and ask the author for confirmation if it exceeds the
> > configured line length.
> >
> > Needs Tcl 8.6 because of `lmap`.
> >
> > Signed-off-by: Bert Wesarg <bert.wesarg@googlemail.com>
> > ---
> >  git-gui.sh     |  4 ++--
> >  lib/commit.tcl | 10 ++++++++++
> >  2 files changed, 12 insertions(+), 2 deletions(-)
> >
> > diff --git a/git-gui.sh b/git-gui.sh
> > index 5bc21b8..a491085 100755
> > --- a/git-gui.sh
> > +++ b/git-gui.sh
> > @@ -31,8 +31,8 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA}]
> >  ##
> >  ## Tcl/Tk sanity check
> >
> > -if {[catch {package require Tcl 8.4} err]
> > - || [catch {package require Tk  8.4} err]
> > +if {[catch {package require Tcl 8.6} err]
> > + || [catch {package require Tk  8.6} err]
> >  } {
> >       catch {wm withdraw .}
> >       tk_messageBox \
> > diff --git a/lib/commit.tcl b/lib/commit.tcl
> > index 83620b7..fa9760b 100644
> > --- a/lib/commit.tcl
> > +++ b/lib/commit.tcl
> > @@ -215,6 +215,16 @@ A good commit message has the following format:
> >               unlock_index
> >               return
> >       }
> > +     if {[tcl::mathfunc::max {*}[lmap x [split $msg "\n"] {string length $x}]] >= $repo_config(gui.commitmsgwidth) \
>
> This has an off-by-one error: When I fill the edit box to the limit, but
> not beyond it, I get the warning popup. I guess this should be '>', not
> '>='.

Thanks. As Pratyush wont pull this one, I separated it and keep it in
a branch in my fork:

https://github.com/bertwesarg/git-gui/tree/bw/warn-wide-commit-message

Bert

>
> > +         && [ask_popup "Commit message contains lines longer than $repo_config(gui.commitmsgwidth) characters.
> > +
> > +You may change this limit in the options.
> > +
> > +Continue to commit?
> > +"] ne yes} {
> > +             unlock_index
> > +             return
> > +     }
> >
> >       # -- Build the message file.
> >       #
> >
>
> -- Hannes