Ævar Arnfjörð Bjarmason <[email protected]> wrote:
> On Mon, Dec 06 2021, Eric Wong wrote:
> > Ævar Arnfjörð Bjarmason <[email protected]> wrote:
> >> On Fri, Dec 03 2021, Konstantin Ryabitsev wrote:
> >> 
> >> > On Fri, Dec 03, 2021 at 09:02:48PM +0100, Ævar Arnfjörð Bjarmason wrote:
> >> >> When I've experienced delays (sometimes of half a day or more) both
> >> >> https://public-inbox.org/git/ and https://lore.kernel.org/git/ have been
> >> >> updated.
> >> >
> >> > Btw, you can source lore.kernel.org straight into your gmail inbox. :)
> >> >
> >> >     
> >> > https://people.kernel.org/monsieuricon/lore-lei-part-1-getting-started
> >> >     https://people.kernel.org/monsieuricon/lore-lei-part-2-now-with-imap
> >> >
> >> > Or, you can read it via nntp://nntp.lore.kernel.org/.
> >> 
> >> [CC'd [email protected], probably best to move this thread over
> >> there sooner than later, but CC'ing git@ still in case this is
> >> interesting to others]
> >> 
> >> I poked a bit at setting this up but couldn't find from building
> >> public-inbox.org & trying to page through the docs how I'd get from an
> >> existing public-inbox.org/git/ checkout to a local Maildir.
> >
> > Existing, public-inboxes can be set as "externals" and managed
> > via {add,forget,ls}-external sub-commands:
> >
> >     # for locally-cloned inboxes:
> >     public-inbox-index /path/to/existing/inbox
> >     lei add-external /path/to/existing/inbox
> >
> >     # relies on curl, memoizes data downloaded for each search:
> >     lei add-external https://yhbt.net/lore/git
> >
> > Local externals will be included by every "lei q" invocation;
> > HTTP(S) ones require "lei q --remote"
> >
> > If you only want to use an external as a one-off without adding
> > it, the -I/--include and -O/--only flags are useful:
> >
> >   lei q -O https://yhbt.net/lore/git -o /tmp/results SEARCH_TERMS
> >
> >> If you could share some recipe or a pointer to the right docs for that
> >> that would be much appreciated. Thanks!
> >
> > lei-overview(7) manpage documents some things, at least:
> > https://public-inbox.org/lei-overview.html  Patches welcome :>
> >
> > IMHO lei still kinda sucks, and I probably won't have time to
> > work on it for a bit :<
> 
> Thanks. I finally got around to setting this up.
> 
> The above instructions didn't quite work for me, but here's what I did
> (in the form of a script lifted from a screen(1) config I've
> got). Indented with un-indented comments. The "stuff" is screen's way of
> "run this command" (or well, input these characters):
> 
> I had a ~/g/git-ml clone already, but this makes one:
>     
>     stuff "cd ~/g/git-ml || git clone https://public-inbox.org/git 
> ~/g/git-ml^M"

Wait, lack of --mirror or --bare for git-clone on any
public-inbox is a big mistake in terms of inode+disk use

> The initial index:
> 
>     ## This will create a .git/publici-inbox in ~/g/git-ml. Takes a while
>     ## the first time.
>     stuff "time public-inbox-index -v \$PWD^M"
> 
> I fiddled with this for a bit because it refused to work, turns out it
> was missing the .git at the end, i.e. it expected a bare repo[1]:
> 
>     ## When we add the lei external it *must* have the ".git" part,
>     ## because it'll try to find the "public-inbox" folder at wherever we
>     ## point it.
>     stuff "test -d ~/.config/lei || lei add-external ~/g/git-ml/.git^M"

Yeah, public-inbox has never supported non-bare usage.

> A bit of a UX wart not to be able to specify no --limit, or maybe I'm
> missing a way:
> 
>     ## The one-off massive import of the Git ML. TODO: No way to specify
>     ## an infinite limit? Not --no-limit or --limit=0.
>     stuff "test -d ~/Maildir/lei-q-git-ml || time lei q --limit=999999999 -v 
> -o ~/Maildir/lei-q-git-ml l:git.vger.kernel.org^M"

Oops.  --no-limit or --limit=0 or --limit=-1 support will be
added at some point...

> The initial indexing:
> 
>     ## After the one-off import this will take forever *the first time*
>     ## (or around 20m), but subsequent invocations will be fast:
>     stuff "time lei up ~/Maildir/lei-q-git-ml^M"
> 
> Runs an ad-hoc script to keep it up-to-date, which is quoted below:
> 
>     ## Run it in a loop
>     stuff "public-inbox-lei-pull-index^M"
> 
> That script (which I whipped up just now. Is there a better/more
> standard way? to keep a public-inbox+lei pair up-to-date with
> sleep/backoff etc?

Not yet, unfortunately.  I would like to have some sort of
long-polling support (similar to IDLE in IMAP) because I hate
sleep/backoff.  But I don't think I'm physically nor mentally
capable of doing that or much of anything, anymore.

>       #!/bin/sh
>       set -xe
>       
>       repo=~/g/git-ml
>       while true
>       do
>               oid=$(git -C $repo rev-parse HEAD)
>               git -C $repo pull
>               noid=$(git -C $repo rev-parse HEAD)
>               if test "$oid" = "$noid"
>               then
>                       echo Nothing to update
>                       sleep 60
>                       continue
>               fi
>               (
>                       cd $repo &&
>                       public-inbox-index -v "$PWD"
>               )
>               lei up ~/Maildir/lei-q-git-ml
>               sleep 1
>       done
> 
> I use Emacs+mu4e for my E-Mail. And since I index ~/Maildir having these
> files dropped in there will be added to its index. Then I just changed
> my saved search to also look through that maildir (I guess the entire
> first condition could be dropped, but whatever):
> 
>     "(maildir:/personal-gmail/* OR maildir:/lei-q-git-ml/*) AND 
> list:git.vger.kernel.org OR recip:[email protected] OR 
> recip:[email protected]"
> 
> Because "mu" is generally good about de-duplicating stuff I've now got
> an inbox with mixed messages I can sync from GMail (including my "Sent"
> folder), and I get up-to-the-minute ML traffic now (it's bee 10hrs-4day
> delayed for 3-4 months at least).
> 
> So new messages are generally from the "lei" directory, but when I send
> one it'll be dropped in the personal-gmail.
> 
> I still need to check if it's doing the wrong thing with e.g. "read"
> flags if I read a mail synced via lei that later arrives in GMail. But I
> mostly don't use "read" statuses anyway...

lei can export flags from its internal DBs to IMAP via "lei export-kw"
see lei-mail-sync-overview(7) for some details, but usability is still
rough...

> 1.  Maybe this "I only tested if it complied" patch would make sense to catch 
> that?
> 
> diff --git a/lib/PublicInbox/LeiXSearch.pm b/lib/PublicInbox/LeiXSearch.pm
> index 2958d3f9..be49621f 100644
> --- a/lib/PublicInbox/LeiXSearch.pm
> +++ b/lib/PublicInbox/LeiXSearch.pm
> @@ -613,7 +613,7 @@ sub add_uri {
>       }
>  }
>  
> -sub prepare_external {
> +sub _prepare_external {
>       my ($self, $loc, $boost) = @_; # n.b. already ordered by boost
>       if (ref $loc) { # already a URI, or PublicInbox::Inbox-like object
>               return add_uri($self, $loc) if $loc->can('scheme');
> @@ -638,6 +638,14 @@ sub prepare_external {
>       push @{$self->{locals}}, $loc;
>  }
>  
> +sub prepare_external {
> +     my ($self, $loc, $boost) = @_;
> +     my $ret = _prepare_external($self, $loc, $boost);
> +     warn "W: we got nothing from $loc, did you mean $loc/.git?"
> +             if !$ret && -e "$loc/.git";
> +     return $ret;
> +}

Probably add a note saying non-bare repos are a terrible idea,
anyways, especially for v1 public-inboxes like public-inbox.org/git
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