# Re: [POC PATCH] diff options: Introduce --interactive 2 messages from 2009-03-30 to 2009-03-30. Participants: David Aguilar, Ping Yin. Thread: https://gitlist.dev/t/18636 ## David Aguilar, 2009-03-30 09:04 Subject: Re: [POC PATCH] diff options: Introduce --interactive Message-ID: <20090330090438.GA18953@gmail.com> URL: https://gitlist.dev/e/20090330090438.GA18953%40gmail.com In-Reply-To: <1238391670-4421-1-git-send-email-pkufranky@gmail.com> ``` On 0, Ping Yin wrote: > The new option --interactive introduces an interactive diff mode. Now we > can choose to see the diff for a selected file. I just tried it out. Very cool. It's exactly the functionality users have asked me about. I just sent a for-the-future patch that teaches difftool to tell difftool-helper that it shouldn't prompt when you're using --interactive. I noticed git-diff doesn't have a -i flag yet, perhaps it could be the shorthand for --interactive? (I'd have to change that for-the-future patch I just sent too since it also only checks for the long form...) I like it. > > This is a preparation to introduce the --tool option to launch the > external diff tool for a selected file. With both of our latest patches: git difftool --interactive does exactly what one would expect it to. How are you envisioning --tool? It'd be great if we didn't need the perl wrapper, though something does need to set GIT_EXTERNAL_DIFF/GIT_PAGER/etc... (that is, unless you have a better way =)) > >> When the user types a number, git-difftool-helper is launched to show > >> the diff for the corresponding file. > > > > Cool. > > I had two patches that I sent to the list for > > git-difftool.perl. If you're going to patch it then you might > > want to base it on top of those. > > > When i try to code on git-difftool.perl, i find it is more appropriate to add > the --interactive and then --tool options to git-diff itself. So here is a > proof of concept patch based on next. What we should do next is to try to > design a good UI. I'll see if I can come up with any suggestions. I liked it on the first test drive. -- David ``` ## Ping Yin, 2009-03-30 09:38 Subject: Re: [POC PATCH] diff options: Introduce --interactive Message-ID: <46dff0320903300238s425c4c35nc501b403b0bc3c87@mail.gmail.com> URL: https://gitlist.dev/e/46dff0320903300238s425c4c35nc501b403b0bc3c87%40mail.gmail.com In-Reply-To: <20090330090438.GA18953@gmail.com> ``` On Mon, Mar 30, 2009 at 5:04 PM, David Aguilar wrote: > On  0, Ping Yin wrote: >> The new option --interactive introduces an interactive diff mode. Now we >> can choose to see the diff for a selected file. > > I just tried it out.  Very cool. > It's exactly the functionality users have asked me about. > > I just sent a for-the-future patch that teaches difftool > to tell difftool-helper that it shouldn't prompt when > you're using --interactive. > > I noticed git-diff doesn't have a -i flag yet, > perhaps it could be the shorthand for --interactive? > > (I'd have to change that for-the-future patch I just sent >  too since it also only checks for the long form...) > > I like it. > >> >> This is a preparation to introduce the --tool option to launch the >> external diff tool for a selected file. > > With both of our latest patches: > >        git difftool --interactive > > does exactly what one would expect it to. > > > How are you envisioning --tool?  It'd be great if we didn't > need the perl wrapper, though something does need to set > GIT_EXTERNAL_DIFF/GIT_PAGER/etc... (that is, unless you have a > better way =)) These environment vars can be set in diff.c directly, by passing the git-difftool. So i think the difftool wrapper can be just removed once the --tool option is available > > >> >> When the user types a number,  git-difftool-helper is launched to show >> >> the diff for the corresponding file. >> > >> > Cool. >> > I had two patches that I sent to the list for >> > git-difftool.perl.  If you're going to patch it then you might >> > want to base it on top of those. >> > >> When i try to code on git-difftool.perl, i find it is more appropriate to add >> the --interactive and then --tool options to git-diff itself. So here is a >> proof of concept patch based on next. What we should do next is to try to >> design a good UI. > > I'll see if I can come up with any suggestions. > I liked it on the first test drive. > Here is the UI i am envisioning, although i am not a good ui designer 1. interactive diff $ git diff --interactive 1: M -10/+20 a.c 2: R -5 /+0 a1.c => a2.c 3: C -5 /+0 b1.c => b2.c [p] What now [,t?,p,t,p,q,?]? When hitting '?' - see diff of file in default mode p - see diff of file in patch mode t - see diff of file in tool mode p - change to patch diff mode t - change to tool diff mode q - quit this ineraction ? - print help When hitting 't' [t] What now [,t?,p,t,p,q,?]? 2. interactive diff with --tool if using "git diff --interactive --tool", then the default diff mode is tool $ git diff --interactive --tool 1: M -10/+20 a.c 2: R -5 /+0 a1.c => a2.c 3: C -5 /+0 b1.c => b2.c [t] What now [,t?,p,t,p,q,?]? 3. other considerations - --tool can imply --interactive - --interactive can imply -p - pager is disabled in interactive mode ```