From: Eric Wong <e@80x24.org>
To: meta@public-inbox.org
Subject: [PATCH 16/95] lei_mirror: consolidate clone process management
Date: Mon, 28 Nov 2022 05:31:13 +0000 [thread overview]
Message-ID: <20221128053232.291618-17-e@80x24.org> (raw)
In-Reply-To: <20221128053232.291618-1-e@80x24.org>
This simplifies our code by having fewer places check process
limits and perform reaping. We'll also print command names
immediately before executing, instead of right before waiting
for running processes.
---
lib/PublicInbox/LeiMirror.pm | 37 ++++++++++++++++--------------------
1 file changed, 16 insertions(+), 21 deletions(-)
diff --git a/lib/PublicInbox/LeiMirror.pm b/lib/PublicInbox/LeiMirror.pm
index eaffb8fa..8796951d 100644
--- a/lib/PublicInbox/LeiMirror.pm
+++ b/lib/PublicInbox/LeiMirror.pm
@@ -118,9 +118,9 @@ sub _get_txt_start { # non-fatal
my $cmd = $self->{curl}->for_uri($lei, $uri, qw(--compressed -R -o),
$ft->filename);
$self->{"-get_txt.$endpoint"} = [ $ft, $cmd, $uri ];
- $lei->qerr("# @$cmd");
my $jobs = $lei->{opt}->{jobs} // 1;
reap_live() while keys(%LIVE) >= $jobs;
+ $lei->qerr("# @$cmd");
$LIVE{spawn($cmd, undef, $opt)} =
[ \&_get_txt_done, $self, $endpoint, $fini ];
}
@@ -223,6 +223,14 @@ sub run_reap {
$ret;
}
+sub start_clone {
+ my ($self, $cmd, $opt, $fini) = @_;
+ my $jobs = $self->{lei}->{opt}->{jobs} // 1;
+ reap_live() while keys(%LIVE) >= $jobs;
+ $self->{lei}->qerr("# @$cmd");
+ $LIVE{spawn($cmd, undef, $opt)} = [ \&reap_clone, $self, $cmd, $fini ];
+}
+
sub clone_v1 {
my ($self, $nohang) = @_;
my $lei = $self->{lei};
@@ -233,11 +241,8 @@ sub clone_v1 {
my $pfx = $curl->torsocks($lei, $uri) or return;
my $dst = $self->{cur_dst} // $self->{dst};
my $fini = PublicInbox::OnDestroy->new($$, \&v1_done, $self);
- my $jobs = $self->{lei}->{opt}->{jobs} // 1;
my $cmd = [ @$pfx, clone_cmd($lei, my $opt = {}), "$uri", $dst ];
- $lei->qerr("# @$cmd");
- $LIVE{spawn($cmd, undef, $opt)} = [ \&reap_clone, $lei, $cmd, $fini ];
- reap_live() while keys(%LIVE) >= $jobs;
+ start_clone($self, $cmd, $opt, $fini);
_get_txt_start($self, '_/text/config/raw', $fini);
my $d = $self->{-ent} ? $self->{-ent}->{description} : undef;
@@ -309,12 +314,12 @@ EOM
}
sub reap_clone { # async, called via SIGCHLD
- my ($lei, $cmd) = @_;
+ my ($self, $cmd) = @_;
my $cerr = $?;
$? = 0; # don't let it influence normal exit
if ($cerr) {
kill('TERM', keys %LIVE);
- $lei->child_error($cerr, "@$cmd failed");
+ $self->{lei}->child_error($cerr, "@$cmd failed");
}
}
@@ -395,17 +400,10 @@ failed to extract epoch number from $src
$task->{-locked} = $lk->lock_for_scope($$);
my @cmd = clone_cmd($lei, my $opt = {});
- my $jobs = $self->{lei}->{opt}->{jobs} // 1;
- do {
- reap_live() while keys(%LIVE) >= $jobs;
- while (keys(%LIVE) < $jobs && @src_edst &&
- !$lei->{child_error}) {
- my $cmd = [ @$pfx, @cmd, splice(@src_edst, 0, 2) ];
- $lei->qerr("# @$cmd");
- $LIVE{spawn($cmd, undef, $opt)} = [ \&reap_clone,
- $lei, $cmd, $fini ];
- }
- } while (@src_edst && !$lei->{child_error});
+ while (@src_edst && !$lei->{child_error}) {
+ my $cmd = [ @$pfx, @cmd, splice(@src_edst, 0, 2) ];
+ start_clone($self, $cmd, $opt, $fini);
+ }
}
sub decode_manifest ($$$) {
@@ -508,7 +506,6 @@ sub try_manifest {
}
my ($path_pfx, $n, $multi) = multi_inbox($self, \$path, $m);
return $lei->child_error(1, $multi) if !ref($multi);
- my $jobs = $self->{lei}->{opt}->{jobs} // 1;
if (my $v2 = delete $multi->{v2}) {
for my $name (sort keys %$v2) {
my $epochs = delete $v2->{$name};
@@ -531,7 +528,6 @@ sub try_manifest {
E: `$self->{cur_dst}' must not contain newline
EOM
clone_v2($self, \%v2_epochs, $m);
- reap_live() while keys(%LIVE) >= $jobs;
return if $self->{lei}->{child_error};
}
}
@@ -540,7 +536,6 @@ EOM
chop($p) if substr($p, -1, 1) eq '/';
$uri->path($p);
for my $name (@$v1) {
- reap_live() while keys(%LIVE) >= $jobs;
return if $self->{lei}->{child_error};
my $task = bless { %$self }, __PACKAGE__;
next prev parent reply other threads:[~2022-11-28 5:32 UTC|newest]
Thread overview: 96+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-28 5:30 [PATCH 00/95] clone: multi-inbox/repo support Eric Wong
2022-11-28 5:30 ` [PATCH 01/95] clone: support multi-inbox clone Eric Wong
2022-11-28 5:30 ` [PATCH 02/95] clone: support --include and --exclude with multi-clone Eric Wong
2022-11-28 5:31 ` [PATCH 03/95] clone: parallelize v2 epoch clones Eric Wong
2022-11-28 5:31 ` [PATCH 04/95] lei_mirror: async config retrieval for v2 w/ manifest Eric Wong
2022-11-28 5:31 ` [PATCH 05/95] lei_mirror: rely on DESTROY to index v2 inbox Eric Wong
2022-11-28 5:31 ` [PATCH 06/95] lei_mirror: rely on global process reaper Eric Wong
2022-11-28 5:31 ` [PATCH 07/95] clone: support parallel v1 clones Eric Wong
2022-11-28 5:31 ` [PATCH 08/95] lei_mirror: default to single job by default Eric Wong
2022-11-28 5:31 ` [PATCH 09/95] lei_mirror: move directory creation to v2-only path Eric Wong
2022-11-28 5:31 ` [PATCH 10/95] lei_mirror: retrieve description text asynchronously, too Eric Wong
2022-11-28 5:31 ` [PATCH 11/95] switch inotify/kevent stuff to v5.12 Eric Wong
2022-11-28 5:31 ` [PATCH 12/95] manifest: update module blurb + v5.12 Eric Wong
2022-11-28 5:31 ` [PATCH 13/95] lei_mirror: simplify _get_txt_start callers Eric Wong
2022-11-28 5:31 ` [PATCH 14/95] lei_mirror: elide description retrieval for v1|coderepo Eric Wong
2022-11-28 5:31 ` [PATCH 15/95] lei_mirror: add a hint for skipped epoch permissions Eric Wong
2022-11-28 5:31 ` Eric Wong [this message]
2022-11-28 5:31 ` [PATCH 17/95] lei_mirror: load File::Path unconditionally Eric Wong
2022-11-28 5:31 ` [PATCH 18/95] lei_mirror: load most modules up-front Eric Wong
2022-11-28 5:31 ` [PATCH 19/95] lei_mirror: set gitweb.owner from manifest Eric Wong
2022-11-28 5:31 ` [PATCH 20/95] clone: support --dry-run / -n flag Eric Wong
2022-11-28 5:31 ` [PATCH 21/95] lei_mirror: initialize placeholders with "head" from manifest Eric Wong
2022-11-28 5:31 ` [PATCH 22/95] lei_mirror: support {reference} for v1 manifest clones Eric Wong
2022-11-28 5:31 ` [PATCH 23/95] lei_mirror: reduce noise on interrupted clones Eric Wong
2022-11-28 5:31 ` [PATCH 24/95] clone: support --inbox-config option Eric Wong
2022-11-28 5:31 ` [PATCH 25/95] lei_mirror: retrieve v2 description properly Eric Wong
2022-11-28 5:31 ` [PATCH 26/95] lei_mirror: reduce scope of v2 lock Eric Wong
2022-11-28 5:31 ` [PATCH 27/95] lei_mirror: allow --epoch on mixed v1/v2 clones Eric Wong
2022-11-28 5:31 ` [PATCH 28/95] lei_mirror: fix infinite loop in dependency resolution Eric Wong
2022-11-28 5:31 ` [PATCH 29/95] lei_mirror: defend against infinite loops Eric Wong
2022-11-28 5:31 ` [PATCH 30/95] lei_mirror: do not fetch descriptions if using manifest Eric Wong
2022-11-28 5:31 ` [PATCH 31/95] lei_mirror: require PublicInbox::Lock at use Eric Wong
2022-11-28 5:31 ` [PATCH 32/95] lei_mirror: fix glob semantics to match end-of-path Eric Wong
2022-11-28 5:31 ` [PATCH 33/95] lei_mirror: differentiate -entv vs -ent Eric Wong
2022-11-28 5:31 ` [PATCH 34/95] lei_mirror: support manifest {references} for v2 epochs Eric Wong
2022-11-28 5:31 ` [PATCH 35/95] lei_mirror: simplify v2 code paths Eric Wong
2022-11-28 5:31 ` [PATCH 36/95] clone: support --inbox-version Eric Wong
2022-11-28 5:31 ` [PATCH 37/95] lei_mirror: require Perl v5.12+ Eric Wong
2022-11-28 5:31 ` [PATCH 38/95] lei_mirror: ensure curl exits 22 on HTTP 404 responses Eric Wong
2022-11-28 5:31 ` [PATCH 39/95] lei_mirror: cleanup File::Temp OO usage Eric Wong
2022-11-28 5:31 ` [PATCH 40/95] lei_mirror: add `index' target to generated Makefile Eric Wong
2022-11-28 5:31 ` [PATCH 41/95] lei_mirror: do not write Makefile for --inbox-config=never Eric Wong
2022-11-28 5:31 ` [PATCH 42/95] lei_mirror: hoist out dump_manifest sub Eric Wong
2022-11-28 5:31 ` [PATCH 43/95] lei_mirror: avoid convoluted lazy_cb usage Eric Wong
2022-11-28 5:31 ` [PATCH 44/95] lei_mirror: simplify clone_v2_prep Eric Wong
2022-11-28 5:31 ` [PATCH 45/95] lei_mirror: support --objstore and forkgroups Eric Wong
2022-11-28 5:31 ` [PATCH 46/95] lei_mirror: cleanup process reaping logic Eric Wong
2022-11-28 5:31 ` [PATCH 47/95] lei_mirror: ensure git <1.8.5 fallback can use torsocks Eric Wong
2022-11-28 5:31 ` [PATCH 48/95] clone: flesh out --objstore behavior and document Eric Wong
2022-11-28 5:31 ` [PATCH 49/95] lei_mirror: always pack refs for coderepos Eric Wong
2022-11-28 5:31 ` [PATCH 50/95] lei_mirror: set description for non-inboxes, too Eric Wong
2022-11-28 5:31 ` [PATCH 51/95] lei_mirror: force --no-tags when fetching forkgroups Eric Wong
2022-11-28 5:31 ` [PATCH 52/95] lei_mirror: preserve permissions of existing alternates file Eric Wong
2022-11-28 5:31 ` [PATCH 53/95] lei_mirror: do not show ref updates w/o --verbose Eric Wong
2022-11-28 5:31 ` [PATCH 54/95] lei_mirror: drop git <1.8.5 support Eric Wong
2022-11-28 5:31 ` [PATCH 55/95] lei_mirror: make basename more descriptive Eric Wong
2022-11-28 5:31 ` [PATCH 56/95] lei_mirror: fix --dry-run for forkgroups Eric Wong
2022-11-28 5:31 ` [PATCH 57/95] lei_mirror: forkgroups use `git fetch --multiple' Eric Wong
2022-11-28 5:31 ` [PATCH 58/95] clone: move --dry-run handling to lei_mirror Eric Wong
2022-11-28 5:31 ` [PATCH 59/95] clone: drop unnecessary requires Eric Wong
2022-11-28 5:31 ` [PATCH 60/95] clone: use v5.12 Eric Wong
2022-11-28 5:31 ` [PATCH 61/95] clone: require `--objstore=' for default location Eric Wong
2022-11-28 5:31 ` [PATCH 62/95] lei_mirror: shorten remote names Eric Wong
2022-11-28 5:32 ` [PATCH 63/95] fetch: use v5.12 Eric Wong
2022-11-28 5:32 ` [PATCH 64/95] fetch: eliminate File::Temp->filename var Eric Wong
2022-11-28 5:32 ` [PATCH 65/95] lei_mirror: properly pack-refs in non-forkgroup repos Eric Wong
2022-11-28 5:32 ` [PATCH 66/95] lei_mirror: show child error error code Eric Wong
2022-11-28 5:32 ` [PATCH 67/95] on_destroy: support ->cancel callback Eric Wong
2022-11-28 5:32 ` [PATCH 68/95] lei_mirror: support resuming multi-repo clones Eric Wong
2022-11-28 5:32 ` [PATCH 69/95] lei_mirror: check fingerprints before fetching Eric Wong
2022-11-28 5:32 ` [PATCH 70/95] clone: support loading manifest.js.gz from destination Eric Wong
2022-11-28 5:32 ` [PATCH 71/95] lei_mirror: delay configuring forkgroups Eric Wong
2022-11-28 5:32 ` [PATCH 72/95] clone: canonicalize destination path from CLI Eric Wong
2022-11-28 5:32 ` [PATCH 73/95] clone|fetch: support passing --prune(-tags) to `git fetch' Eric Wong
2022-11-28 5:32 ` [PATCH 74/95] lei_mirror: avoid needless FD passing Eric Wong
2022-11-28 5:32 ` [PATCH 75/95] clone: support --keep-going/-k like make(1) Eric Wong
2022-11-28 5:32 ` [PATCH 76/95] lei_mirror: don't warn on missing manifest on initial clone Eric Wong
2022-11-28 5:32 ` [PATCH 77/95] lei_mirror: respect `./' and `../' prefixes for CLI args Eric Wong
2022-11-28 5:32 ` [PATCH 78/95] lei_mirror: --manifest= affects destination, too Eric Wong
2022-11-28 5:32 ` [PATCH 79/95] lei_mirror: update fingerprints when writing local manifest.js.gz Eric Wong
2022-11-28 5:32 ` [PATCH 80/95] lei_mirror: remove janky mirror.done stamp file Eric Wong
2022-11-28 5:32 ` [PATCH 81/95] lei_mirror: simplify most process spawning Eric Wong
2022-11-28 5:32 ` [PATCH 82/95] lei_mirror: run v1_done earlier on forkgroup done Eric Wong
2022-11-28 5:32 ` [PATCH 83/95] lei_mirror: simplify forkgroup-related subs Eric Wong
2022-11-28 5:32 ` [PATCH 84/95] lei_mirror: shorten scope mirror objects Eric Wong
2022-11-28 5:32 ` [PATCH 85/95] lei_mirror: set {head} from manifest Eric Wong
2022-11-28 5:32 ` [PATCH 86/95] lei_mirror: support {symlinks} " Eric Wong
2022-11-28 5:32 ` [PATCH 87/95] lei_mirror: eliminate circular references Eric Wong
2022-11-28 5:32 ` [PATCH 88/95] lei_mirror: use curl -z/--timecond if manifest exists Eric Wong
2022-11-28 5:32 ` [PATCH 89/95] lei_mirror: avoid redundant curl `-f' use Eric Wong
2022-11-28 5:32 ` [PATCH 90/95] lei_mirror: omit trailing slash for git remote.*.url Eric Wong
2022-11-28 5:32 ` [PATCH 91/95] lei_mirror: set info/web/last-modified from manifest Eric Wong
2022-11-28 5:32 ` [PATCH 92/95] lei_mirror: don't clobber inbox.config.example if it exists Eric Wong
2022-11-28 5:32 ` [PATCH 93/95] lei_mirror: break out of fgrp fetch iteration early Eric Wong
2022-11-28 5:32 ` [PATCH 94/95] clone: support --project-list= for cgit Eric Wong
2022-11-28 5:32 ` [PATCH 95/95] lei_mirror: handle forkgroup changes Eric Wong
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