* [PATCH 42/95] lei_mirror: hoist out dump_manifest sub
2022-11-28 5:30 7% [PATCH 00/95] clone: multi-inbox/repo support Eric Wong
@ 2022-11-28 5:31 6% ` Eric Wong
0 siblings, 0 replies; 2+ results
From: Eric Wong @ 2022-11-28 5:31 UTC (permalink / raw)
To: meta
We can reuse it in PublicInbox::Fetch, too.
---
lib/PublicInbox/Fetch.pm | 10 +---------
lib/PublicInbox/LeiMirror.pm | 27 +++++++++++++++------------
2 files changed, 16 insertions(+), 21 deletions(-)
diff --git a/lib/PublicInbox/Fetch.pm b/lib/PublicInbox/Fetch.pm
index 3b6aa389..06ed775f 100644
--- a/lib/PublicInbox/Fetch.pm
+++ b/lib/PublicInbox/Fetch.pm
@@ -12,8 +12,6 @@ use PublicInbox::LEI;
use PublicInbox::LeiCurl;
use PublicInbox::LeiMirror;
use File::Temp ();
-use PublicInbox::Config;
-use IO::Compress::Gzip qw(gzip $GzipError);
sub new { bless {}, __PACKAGE__ }
@@ -233,13 +231,7 @@ EOM
}
for my $i (@new_epoch) { $mg->epoch_cfg_set($i) }
if ($ft) {
- if ($mculled) {
- my $json = PublicInbox::Config->json->encode($m1);
- my $fn = $ft->filename;
- my $mtime = (stat($fn))[9];
- gzip(\$json => $fn) or die "gzip: $GzipError";
- utime($mtime, $mtime, $fn) or die "utime(..., $fn): $!";
- }
+ PublicInbox::LeiMirror::dump_manifest($m1 => $ft) if $mculled;
PublicInbox::LeiMirror::ft_rename($ft, $mf, 0666);
}
$lei->child_error($xit << 8) if $fp2 && $xit;
diff --git a/lib/PublicInbox/LeiMirror.pm b/lib/PublicInbox/LeiMirror.pm
index b0e6fa53..0df37724 100644
--- a/lib/PublicInbox/LeiMirror.pm
+++ b/lib/PublicInbox/LeiMirror.pm
@@ -595,6 +595,20 @@ EOM
reap_live() while keys(%$LIVE);
}
+sub dump_manifest ($$) {
+ my ($m, $ft) = @_;
+ # write the smaller manifest if epochs were skipped so
+ # users won't have to delete manifest if they +w an
+ # epoch they no longer want to skip
+ my $json = PublicInbox::Config->json->encode($m);
+ my $mtime = (stat($ft))[9];
+ seek($ft, SEEK_SET, 0) or die "seek($ft): $!";
+ truncate($ft, 0) or die "truncate($ft): $!";
+ gzip(\$json => $ft) or die "gzip($ft): $GzipError";
+ $ft->flush or die "flush($ft): $!";
+ utime($mtime, $mtime, "$ft") or die "utime(..., $ft): $!";
+}
+
# FIXME: this gets confused by single inbox instance w/ global manifest.js.gz
sub try_manifest {
my ($self) = @_;
@@ -675,18 +689,7 @@ EOM
return if $self->{lei}->{child_error} || $self->{dry_run};
# set by clone_v2_prep/-I/--exclude
- if (delete $self->{-culled_manifest}) {
- # write the smaller manifest if epochs were skipped so
- # users won't have to delete manifest if they +w an
- # epoch they no longer want to skip
- my $json = PublicInbox::Config->json->encode($m);
- my $mtime = (stat($ft))[9];
- seek($ft, SEEK_SET, 0) or die "seek($ft): $!";
- truncate($ft, 0) or die "truncate($ft): $!";
- gzip(\$json => $ft) or die "gzip($ft): $GzipError";
- $ft->flush or die "flush($ft): $!";
- utime($mtime, $mtime, "$ft") or die "utime(..., $ft): $!";
- }
+ dump_manifest($m => $ft) if delete $self->{-culled_manifest};
ft_rename($ft, "$self->{dst}/manifest.js.gz", 0666);
open my $x, '>', "$self->{dst}/mirror.done"; # for _wq_done_wait
}
^ permalink raw reply related [relevance 6%]
* [PATCH 00/95] clone: multi-inbox/repo support...
@ 2022-11-28 5:30 7% Eric Wong
2022-11-28 5:31 6% ` [PATCH 42/95] lei_mirror: hoist out dump_manifest sub Eric Wong
0 siblings, 1 reply; 2+ results
From: Eric Wong @ 2022-11-28 5:30 UTC (permalink / raw)
To: meta
A large patchset, and not done, yet :P It's only tested live,
but it seems to work reasonably well against live hosts...
Behavior changes to public-inbox-clone are NOT final; but
public-inbox-fetch|PublicInbox::Fetch will probably become
thin wrappers around LeiMirror.
--include=/--exclude= support now exists with glob support
--keep-going and --dry-run support added, too, since it's
make(1) influenced (more below)
It supports coderepos, too, using --inbox-config=never (default: always);
--project-list=, --manifest=, --objstore=, and --prune.
key differences from grok-pull (grokmirror) for coderepos:
* uses relative paths on the FS (dumb HTTP untested, but dumb
HTTP is a goal for memory-constrained hosts). This means
I can relocate coderepos freely within my FS or do sneakernet
transfers across machines without having to `perl -ipe s/x/y/'
on hundreds of info/alternates and config files.
* CLI-only, no extra config files (may generate a Makefile, like
individual inbox clones)
* objstore repos fetches from remotes directly
(does not need, use, nor benefit from hardlinks at all)
* no sleep states
It is not a full replacement for grokmirror
* reliant on default `git gc' behavior for repack. This is OK
since it's only one-way relationships between objstore and
non-objstore repos.
* no fsck support (probably will be in generated Makefile)
* doesn't generate forkgroups nor manifest.js.gz
(I may do this for coderepo Xapian indexing)
It relies on parallel git-fetch for objstores, so `-j $NUM'
calculations may end up being ($NUM * $NUM) in the worst case.
Not sure how to best approach this...
Maybe `-j $M,$N' similar to `lei q -j$M,$N` is a solution...
Design note:
This is an exercise in building make(1)-like parallelism using
->DESTROY callbacks for prerequisites; so it's a newish paradigm
for me. It forced me to fix a reference cycle, already.
TODO: repo|symlink pruning, --exit-code, retry/refetch, manpage updates
Eric Wong (95):
clone: support multi-inbox clone
clone: support --include and --exclude with multi-clone
clone: parallelize v2 epoch clones
lei_mirror: async config retrieval for v2 w/ manifest
lei_mirror: rely on DESTROY to index v2 inbox
lei_mirror: rely on global process reaper
clone: support parallel v1 clones
lei_mirror: default to single job by default
lei_mirror: move directory creation to v2-only path
lei_mirror: retrieve description text asynchronously, too
switch inotify/kevent stuff to v5.12
manifest: update module blurb + v5.12
lei_mirror: simplify _get_txt_start callers
lei_mirror: elide description retrieval for v1|coderepo
lei_mirror: add a hint for skipped epoch permissions
lei_mirror: consolidate clone process management
lei_mirror: load File::Path unconditionally
lei_mirror: load most modules up-front
lei_mirror: set gitweb.owner from manifest
clone: support --dry-run / -n flag
lei_mirror: initialize placeholders with "head" from manifest
lei_mirror: support {reference} for v1 manifest clones
lei_mirror: reduce noise on interrupted clones
clone: support --inbox-config option
lei_mirror: retrieve v2 description properly
lei_mirror: reduce scope of v2 lock
lei_mirror: allow --epoch on mixed v1/v2 clones
lei_mirror: fix infinite loop in dependency resolution
lei_mirror: defend against infinite loops
lei_mirror: do not fetch descriptions if using manifest
lei_mirror: require PublicInbox::Lock at use
lei_mirror: fix glob semantics to match end-of-path
lei_mirror: differentiate -entv vs -ent
lei_mirror: support manifest {references} for v2 epochs
lei_mirror: simplify v2 code paths
clone: support --inbox-version
lei_mirror: require Perl v5.12+
lei_mirror: ensure curl exits 22 on HTTP 404 responses
lei_mirror: cleanup File::Temp OO usage
lei_mirror: add `index' target to generated Makefile
lei_mirror: do not write Makefile for --inbox-config=never
lei_mirror: hoist out dump_manifest sub
lei_mirror: avoid convoluted lazy_cb usage
lei_mirror: simplify clone_v2_prep
lei_mirror: support --objstore and forkgroups
lei_mirror: cleanup process reaping logic
lei_mirror: ensure git <1.8.5 fallback can use torsocks
clone: flesh out --objstore behavior and document
lei_mirror: always pack refs for coderepos
lei_mirror: set description for non-inboxes, too
lei_mirror: force --no-tags when fetching forkgroups
lei_mirror: preserve permissions of existing alternates file
lei_mirror: do not show ref updates w/o --verbose
lei_mirror: drop git <1.8.5 support
lei_mirror: make basename more descriptive
lei_mirror: fix --dry-run for forkgroups
lei_mirror: forkgroups use `git fetch --multiple'
clone: move --dry-run handling to lei_mirror
clone: drop unnecessary requires
clone: use v5.12
clone: require `--objstore=' for default location
lei_mirror: shorten remote names
fetch: use v5.12
fetch: eliminate File::Temp->filename var
lei_mirror: properly pack-refs in non-forkgroup repos
lei_mirror: show child error error code
on_destroy: support ->cancel callback
lei_mirror: support resuming multi-repo clones
lei_mirror: check fingerprints before fetching
clone: support loading manifest.js.gz from destination
lei_mirror: delay configuring forkgroups
clone: canonicalize destination path from CLI
clone|fetch: support passing --prune(-tags) to `git fetch'
lei_mirror: avoid needless FD passing
clone: support --keep-going/-k like make(1)
lei_mirror: don't warn on missing manifest on initial clone
lei_mirror: respect `./' and `../' prefixes for CLI args
lei_mirror: --manifest= affects destination, too
lei_mirror: update fingerprints when writing local manifest.js.gz
lei_mirror: remove janky mirror.done stamp file
lei_mirror: simplify most process spawning
lei_mirror: run v1_done earlier on forkgroup done
lei_mirror: simplify forkgroup-related subs
lei_mirror: shorten scope mirror objects
lei_mirror: set {head} from manifest
lei_mirror: support {symlinks} from manifest
lei_mirror: eliminate circular references
lei_mirror: use curl -z/--timecond if manifest exists
lei_mirror: avoid redundant curl `-f' use
lei_mirror: omit trailing slash for git remote.*.url
lei_mirror: set info/web/last-modified from manifest
lei_mirror: don't clobber inbox.config.example if it exists
lei_mirror: break out of fgrp fetch iteration early
clone: support --project-list= for cgit
lei_mirror: handle forkgroup changes
Documentation/lei-add-external.pod | 4 +-
Documentation/public-inbox-clone.pod | 76 ++
Documentation/public-inbox-fetch.pod | 6 +
lib/PublicInbox/DSKQXS.pm | 5 +-
lib/PublicInbox/DirIdle.pm | 4 +-
lib/PublicInbox/FakeInotify.pm | 13 +-
lib/PublicInbox/Fetch.pm | 50 +-
lib/PublicInbox/In2Tie.pm | 4 +-
lib/PublicInbox/InboxIdle.pm | 2 +-
lib/PublicInbox/KQNotify.pm | 12 +-
lib/PublicInbox/LEI.pm | 5 +-
lib/PublicInbox/LeiMirror.pm | 1104 +++++++++++++++++++++-----
lib/PublicInbox/ManifestJsGz.pm | 8 +-
lib/PublicInbox/OnDestroy.pm | 5 +-
lib/PublicInbox/TestCommon.pm | 1 +
script/public-inbox-clone | 23 +-
script/public-inbox-fetch | 4 +-
t/on_destroy.t | 8 +-
t/www_listing.t | 71 +-
19 files changed, 1148 insertions(+), 257 deletions(-)
^ permalink raw reply [relevance 7%]
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2022-11-28 5:30 7% [PATCH 00/95] clone: multi-inbox/repo support Eric Wong
2022-11-28 5:31 6% ` [PATCH 42/95] lei_mirror: hoist out dump_manifest sub Eric Wong
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