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memory-usage: fix `hg log --follow --rev R F` space complexity...
memory-usage: fix `hg log --follow --rev R F` space complexity When running `hg log --follow --rev REVS FILES`, the log code will walk the history of all FILES starting from the file revisions that exists in each REVS. Before doing so, it looks if the files actually exists in the target revisions. To do so, it opens the manifest of each revision in REVS to look up if we find the associated items in FILES. Before this changeset this was done in a way that created a changectx for each target revision, keeping them in memory while we look into each file. If the set of REVS is large, this means keeping the manifest for each entry in REVS in memory. That can be large… if REV is in the form `::X`, this can quickly become huge and saturate the memory. We have seen usage allocating 2GB per second until memory runs out. So this changeset invert the two loop so that only one revision is kept in memory during the operation. This solve the memory explosion issue.
Matt Harbison - - Load All Authors

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r47655:3d32b975 default
r50517:dcb2581e stable
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Augie Fackler
contrib: add new examples area and start it out with a config for `hg fix`...
 r43235 [fix]
Kyle Lippincott
fix: correct the clang-format example hgrc so that it actually works...
 r44460 clang-format:command = clang-format --style file
clang-format:pattern = set:(**.c or **.cc or **.h) and not "include:contrib/clang-format-ignorelist"
Augie Fackler
examples: add sample fix integration for `rustfmt`...
 r43236
Martin von Zweigbergk
examples: refer to nightly rustfmt in Windows-compatible way...
 r44562 rustfmt:command = rustfmt +nightly
Martin von Zweigbergk
rust: move rustfmt.toml to repo root so it can be used by `hg fix`...
 r46195 rustfmt:pattern = set:"**.rs" - "mercurial/thirdparty/**"
Augie Fackler
examples: include a sample of how to use black with fix...
 r43335
Matt Harbison
contrib: restore the `hg fix` configuration in the examples...
 r47655 black:command = black --config=pyproject.toml -
Gregory Szorc
python-zstandard: blacken at 80 characters...
 r44605 black:pattern = set:**.py - mercurial/thirdparty/**
Augie Fackler
examples: add an example configuration for go source files...
 r44373
# Mercurial doesn't have any Go code, but if we did this is how we
# would configure `hg fix` for Go:
go:command = gofmt
go:pattern = set:**.go