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I didn't wait until September to do it, this year!
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The (currently undocumented) "--no-index" flag did not trigger
the V2Writable->done call necessary to make the import
successful.
Fixes: eea47b676127bcdb ("convert: preserve highwater mark from v1 msgmap")
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Relying on implicit "@_" for shift fails with
TestCommon::_run_sub iff GetOptions modifies @ARGV.
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Looking at git history, they were never used.
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If we're reusing the msgmap from a v1 inbox, we also need to
ensure the highwater mark doesn't get doubled in the v1->v2
conversion by internally triggering the equivalent of
"--reindex" on a fresh v2 inbox.
This was needed to convert an indexed v1 inbox which featured
messages with multiple Message-IDs in it. Fresh, unindexed
clones of v1 inboxes would not have been affected by this.
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This allows us to simplify version checking by avoiding
"//" or "||" operators sprinkled around.
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There's a bunch of leftover "require" and "use" statements we no
longer need and can get rid of, along with some excessive
imports via "use".
IO::Handle usage isn't always obvious, so add comments
describing why a package loads it. Along the same lines,
document the tmpdir support as the reason we depend on
File::Temp 0.19, even though every Perl 5.10.1+ user has it.
While we're at it, favor "use" over "require", since it it gives
us extra compile-time checking.
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We only need to parse the command-line once.
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"mainrepo" ws a bad name and artifact from the early days when I
intended for there to be a "spamrepo" (now just the
ENV{PI_EMERGENCY} Maildir). With v2, "mainrepo" can be
especially confusing, since v2 needs at least two git
repositories (epoch + all.git) to function and we shouldn't
confuse users by having them point to a git repository for v2.
Much of our documentation already references "INBOX_DIR" for
command-line arguments, so use "inboxdir" as the
git-config(1)-friendly variant for that.
"mainrepo" remains supported indefinitely for compatibility.
Users may need to revert to old versions, or may be referring
to old documentation and must not be forced to change config
files to account for this change.
So if you're using "mainrepo" today, I do NOT recommend changing
it right away because other bugs can lurk.
Link: https://public-inbox.org/meta/874l0ice8v.fsf@alyssa.is/
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While I don't expect git to suddenly start spewing non-ASCII
digits in places I'd expect ASCII, this would make things easier
for future hackers and reviewers.
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Some users may not have any public-inboxes configured, especially in
tests.
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I noticed I lost a $GIT_DIR/description in a conversion, so we
should preserve it. While we're at it, we ought to copy any
config in the old repo to the new one.
We will need to warn about cloneurl since it's unfortunately
not an automatic process to update. Oh well..
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public-inbox-convert ought to be 100% lossless, now
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This is important for people running mirrors via "git fetch",
as they need to be kept up-to-date. Purging is also now
supported in mirrors.
The short-lived "--regenerate" option is gone and is now
implicitly enabled as a result. It's still cheap when
article number regeneration is unnecessary, as we track
the range for each git repository.
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We need to ensure there is only one file in the top-level tree
at any commit so the "add; remove; add;" sequence on the same
message is detected properly.
Otherwise, git will not detect the second "add" unless
a second message is added to history.
Deletes are now stored in "d" (and not "D" or "_/D") at the
top-level, now. There's no need to have a "_" to reduce churn
as "m" and "d" should never co-exist. It's now lowercased to
make it easier-to-distinguish from "D" in git-log output.
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Ensure -convert and -compact do not make repositories
unreadable on live servers.
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This bug was hidden due to timing problems with eatmydata or
running with tmpfs for TMPDIR.
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This should make it easier to let users perform comparisons and
migrate to v2 if needed.
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