rev-branch-cache: reenable memory mapping of the revision data

Now that we are no longer truncating it, we can mmap it again.

This provide a sizeable speedup on repository with a very large amount of
revision for example for a mozilla-try clone with 5 793 383 revisions, this
provide a speedup of 5ms - 10ms. Since they happens within the "critical" locked
path during push. These miliseconds are important.

In addition, the v3 branchmap format is use the rev-branch-cache more than the
v2 branchmap cache so this will be important.

On smaller repository we consistently see an improvement of one or two percents,
but the gain in absolute time is usually < 10 ms.

#### benchmark.name                                 = hg.command.unbundle
   # benchmark.variants.issue6528                   = disabled
   # benchmark.variants.reuse-external-delta-parent = yes
   # benchmark.variants.revs                        = any-1-extra-rev
   # benchmark.variants.source                      = unbundle
   # benchmark.variants.verbosity                   = quiet

 ### data-env-vars.name = mozilla-try-2024-03-26-zstd-sparse-revlog
  ## bin-env-vars.hg.flavor = default
e51161b12c7e: 3.527923
ebdcfe85b070: 3.468178   (-1.69%, -0.06)
  ## bin-env-vars.hg.flavor = rust
e51161b12c7e: 3.580158
ebdcfe85b070: 3.480564   (-2.78%, -0.10)
 ### data-env-vars.name = mozilla-try-2024-03-26-ds2-pnm
  ## bin-env-vars.hg.flavor = rust
e51161b12c7e: 3.527923
ebdcfe85b070: 3.468178 (-1.69%, -0.06)

mercurial/configitems.toml

@@ -1,2982 +1,2982
 # configitems.toml - centralized declaration of configuration options
 #
 # This file contains declarations of the core Mercurial configuration options.
 #
 # # Structure
 #
 # items: array of config items
 # templates: mapping of template name to template declaration
 # template-applications: array of template applications
 #
 # # Elements
 #
 # ## Item
 #
 # Declares a core Mercurial option.
 #
 # - section: string (required)
 # - name: string (required)
 # - default-type: boolean, changes how `default` is read
 # - default: any
 # - generic: boolean
 # - priority: integer, only if `generic` is true
 # - alias: list of 2-tuples of strings
 # - experimental: boolean
 # - documentation: string
 # - in_core_extension: string
 #
 # ## Template
 #
 # Declares a group of options to be re-used for multiple sections.
 #
 # - all the same fields as `Item`, except `section` and `name`
 # - `suffix` (string, required)
 #
 # ## Template applications
 #
 # Uses a `Template` to instanciate its options in a given section.
 #
 # - template: string (required, must match a `Template` name)
 # - section: string (required)
 
 [[items]]
 section = "alias"
 name = ".*"
 default-type = "dynamic"
 generic = true
 
 [[items]]
 section = "auth"
 name = "cookiefile"
 
 # bookmarks.pushing: internal hack for discovery
 [[items]]
 section = "bookmarks"
 name = "pushing"
 default-type = "list_type"
 
 # bundle.mainreporoot: internal hack for bundlerepo
 [[items]]
 section = "bundle"
 name = "mainreporoot"
 default = ""
 
 [[items]]
 section = "censor"
 name = "policy"
 default = "abort"
 documentation="""Control how to react when accessing censored content.
 Accepted value: "abort", "ignore". Defaults to abort.
 
 A few informative commands such as ``hg grep`` will unconditionally ignore
 censored data and merely report that it was encountered.
 """
 
 
 [[items]]
 section = "chgserver"
 name = "idletimeout"
 default = 3600
 
 [[items]]
 section = "chgserver"
 name = "skiphash"
 default = false
 
 [[items]]
 section = "cmdserver"
 name = "log"
 
 [[items]]
 section = "cmdserver"
 name = "max-log-files"
 default = 7
 
 [[items]]
 section = "cmdserver"
 name = "max-log-size"
 default = "1 MB"
 
 [[items]]
 section = "cmdserver"
 name = "max-repo-cache"
 default = 0
 experimental = true
 
 [[items]]
 section = "cmdserver"
 name = "message-encodings"
 default-type = "list_type"
 
 [[items]]
 section = "cmdserver"
 name = "shutdown-on-interrupt"
 default = true
 
 [[items]]
 section = "cmdserver"
 name = "track-log"
 default-type = "lambda"
 default = [ "chgserver", "cmdserver", "repocache",]
 
 [[items]]
 section = "color"
 name = ".*"
 generic = true
 
 [[items]]
 section = "color"
 name = "mode"
 default = "auto"
 
 [[items]]
 section = "color"
 name = "pagermode"
 default-type = "dynamic"
 
 [[items]]
 section = "command-templates"
 name = "graphnode"
 alias = [["ui", "graphnodetemplate"]]
 
 [[items]]
 section = "command-templates"
 name = "log"
 alias = [["ui", "logtemplate"]]
 
 [[items]]
 section = "command-templates"
 name = "mergemarker"
 default = '{node|short} {ifeq(tags, "tip", "", ifeq(tags, "", "", "{tags} "))}{if(bookmarks, "{bookmarks} ")}{ifeq(branch, "default", "", "{branch} ")}- {author|user}: {desc|firstline}'
 alias = [["ui", "mergemarkertemplate"]]
 
 [[items]]
 section = "command-templates"
 name = "oneline-summary"
 
 [[items]]
 section = "command-templates"
 name = "oneline-summary.*"
 default-type = "dynamic"
 generic = true
 
 [[items]]
 section = "command-templates"
 name = "pre-merge-tool-output"
 alias = [["ui", "pre-merge-tool-output-template"]]
 
 [[items]]
 section = "commands"
 name = "commit.post-status"
 default = false
 
 [[items]]
 section = "commands"
 name = "grep.all-files"
 default = false
 experimental = true
 
 [[items]]
 section = "commands"
 name = "merge.require-rev"
 default = false
 
 [[items]]
 section = "commands"
 name = "push.require-revs"
 default = false
 
 # Rebase related configuration moved to core because other extension are doing
 # strange things. For example, shelve import the extensions to reuse some bit
 # without formally loading it.
 [[items]]
 section = "commands"
 name = "rebase.requiredest"
 default = false
 
 [[items]]
 section = "commands"
 name = "resolve.confirm"
 default = false
 
 [[items]]
 section = "commands"
 name = "resolve.explicit-re-merge"
 default = false
 
 [[items]]
 section = "commands"
 name = "resolve.mark-check"
 default = "none"
 
 [[items]]
 section = "commands"
 name = "show.aliasprefix"
 default-type = "list_type"
 
 [[items]]
 section = "commands"
 name = "status.relative"
 default = false
 
 [[items]]
 section = "commands"
 name = "status.skipstates"
 default = []
 experimental = true
 
 [[items]]
 section = "commands"
 name = "status.terse"
 default = ""
 
 [[items]]
 section = "commands"
 name = "status.verbose"
 default = false
 
 [[items]]
 section = "commands"
 name = "update.check"
 
 [[items]]
 section = "commands"
 name = "update.requiredest"
 default = false
 
 [[items]]
 section = "committemplate"
 name = ".*"
 generic = true
 
 [[items]]
 section = "convert"
 name = "bzr.saverev"
 default = true
 
 [[items]]
 section = "convert"
 name = "cvsps.cache"
 default = true
 
 [[items]]
 section = "convert"
 name = "cvsps.fuzz"
 default = 60
 
 [[items]]
 section = "convert"
 name = "cvsps.logencoding"
 
 [[items]]
 section = "convert"
 name = "cvsps.mergefrom"
 
 [[items]]
 section = "convert"
 name = "cvsps.mergeto"
 
 [[items]]
 section = "convert"
 name = "git.committeractions"
 default-type = "lambda"
 default = [ "messagedifferent",]
 
 [[items]]
 section = "convert"
 name = "git.extrakeys"
 default-type = "list_type"
 
 [[items]]
 section = "convert"
 name = "git.findcopiesharder"
 default = false
 
 [[items]]
 section = "convert"
 name = "git.remoteprefix"
 default = "remote"
 
 [[items]]
 section = "convert"
 name = "git.renamelimit"
 default = 400
 
 [[items]]
 section = "convert"
 name = "git.saverev"
 default = true
 
 [[items]]
 section = "convert"
 name = "git.similarity"
 default = 50
 
 [[items]]
 section = "convert"
 name = "git.skipsubmodules"
 default = false
 
 [[items]]
 section = "convert"
 name = "hg.clonebranches"
 default = false
 
 [[items]]
 section = "convert"
 name = "hg.ignoreerrors"
 default = false
 
 [[items]]
 section = "convert"
 name = "hg.preserve-hash"
 default = false
 
 [[items]]
 section = "convert"
 name = "hg.revs"
 
 [[items]]
 section = "convert"
 name = "hg.saverev"
 default = false
 
 [[items]]
 section = "convert"
 name = "hg.sourcename"
 
 [[items]]
 section = "convert"
 name = "hg.startrev"
 
 [[items]]
 section = "convert"
 name = "hg.tagsbranch"
 default = "default"
 
 [[items]]
 section = "convert"
 name = "hg.usebranchnames"
 default = true
 
 [[items]]
 section = "convert"
 name = "ignoreancestorcheck"
 default = false
 experimental = true
 
 [[items]]
 section = "convert"
 name = "localtimezone"
 default = false
 
 [[items]]
 section = "convert"
 name = "p4.encoding"
 default-type = "dynamic"
 
 [[items]]
 section = "convert"
 name = "p4.startrev"
 default = 0
 
 [[items]]
 section = "convert"
 name = "skiptags"
 default = false
 
 [[items]]
 section = "convert"
 name = "svn.branches"
 
 [[items]]
 section = "convert"
 name = "svn.dangerous-set-commit-dates"
 default = false
 
 [[items]]
 section = "convert"
 name = "svn.debugsvnlog"
 default = true
 
 [[items]]
 section = "convert"
 name = "svn.startrev"
 default = 0
 
 [[items]]
 section = "convert"
 name = "svn.tags"
 
 [[items]]
 section = "convert"
 name = "svn.trunk"
 
 [[items]]
 section = "debug"
 name = "bundling-stats"
 default = false
 documentation = "Display extra information about the bundling process."
 
 [[items]]
 section = "debug"
 name = "dirstate.delaywrite"
 default = 0
 
 [[items]]
 section = "debug"
 name = "revlog.debug-delta"
 default = false
 
 [[items]]
 section = "debug"
 name = "revlog.verifyposition.changelog"
 default = ""
 
 [[items]]
 section = "debug"
 name = "unbundling-stats"
 default = false
 documentation = "Display extra information about the unbundling process."
 
 [[items]]
 section = "defaults"
 name = ".*"
 generic = true
 
 [[items]]
 section = "devel"
 name = "all-warnings"
 default = false
 
 [[items]]
 section = "devel"
 name = "bundle.delta"
 default = ""
 
 [[items]]
 section = "devel"
 name = "bundle2.debug"
 default = false
 
 [[items]]
 section = "devel"
 name = "cache-vfs"
 
 [[items]]
 section = "devel"
 name = "check-locks"
 default = false
 
 [[items]]
 section = "devel"
 name = "check-relroot"
 default = false
 
 [[items]]
 section = "devel"
 name = "copy-tracing.multi-thread"
 default = true
 
 # Track copy information for all files, not just "added" ones (very slow)
 [[items]]
 section = "devel"
 name = "copy-tracing.trace-all-files"
 default = false
 
 [[items]]
 section = "devel"
 name = "debug.abort-update"
 default = false
 documentation = """If true, then any merge with the working copy, \
 e.g. [hg update], will be aborted after figuring out what needs to be done, \
 but before spawning the parallel worker."""
 
 [[items]]
 section = "devel"
 name = "debug.copies"
 default = false
 
 [[items]]
 section = "devel"
 name = "debug.extensions"
 default = false
 
 [[items]]
 section = "devel"
 name = "debug.peer-request"
 default = false
 
 [[items]]
 section = "devel"
 name = "debug.repo-filters"
 default = false
 
 [[items]]
 section = "devel"
 name = "default-date"
 
 [[items]]
 section = "devel"
 name = "deprec-warn"
 default = false
 
 # possible values:
 # - auto (the default)
 # - force-append
 # - force-new
 [[items]]
 section = "devel"
 name = "dirstate.v2.data_update_mode"
 default = "auto"
 
 [[items]]
 section = "devel"
 name = "disableloaddefaultcerts"
 default = false
 
 [[items]]
 section = "devel"
 name = "discovery.exchange-heads"
 default = true
 documentation = """If false, the discovery will not start with remote \
 head fetching and local head querying."""
 
 [[items]]
 section = "devel"
 name = "discovery.grow-sample"
 default = true
 documentation = """If false, the sample size used in set discovery \
 will not be increased through the process."""
 
 [[items]]
 section = "devel"
 name = "discovery.grow-sample.dynamic"
 default = true
 documentation = """If true, the default, the sample size is adapted to the shape \
 of the undecided set. It is set to the max of:
 `<target-size>, len(roots(undecided)), len(heads(undecided))`"""
 
 [[items]]
 section = "devel"
 name = "discovery.grow-sample.rate"
 default = 1.05
 documentation = "Controls the rate at which the sample grows."
 
 [[items]]
 section = "devel"
 name = "discovery.randomize"
 default = true
 documentation = """If false, random samplings during discovery are deterministic. \
 It is meant for integration tests."""
 
 [[items]]
 section = "devel"
 name = "discovery.sample-size"
 default = 200
 documentation = "Controls the initial size of the discovery sample."
 
 [[items]]
 section = "devel"
 name = "discovery.sample-size.initial"
 default = 100
 documentation = "Controls the initial size of the discovery for initial change."
 
 [[items]]
 section = "devel"
 name = "legacy.exchange"
 default-type = "list_type"
 
 [[items]]
 section = "devel"
 name = "lock-wait-sync-file"
 default = ""
 
 [[items]]
 section = "devel"
 name = "persistent-nodemap"
 default = false
 documentation = """When true, revlogs use a special reference version of the \
 nodemap, that is not performant but is "known" to behave properly."""
 
 [[items]]
 section = "devel"
 name = "server-insecure-exact-protocol"
 default = ""
 
 [[items]]
 section = "devel"
 name = "servercafile"
 default = ""
 
 [[items]]
 section = "devel"
 name = "serverexactprotocol"
 default = ""
 
 [[items]]
 section = "devel"
 name = "serverrequirecert"
 default = false
 
 [[items]]
 section = "devel"
 name = "strip-obsmarkers"
 default = true
 
 [[items]]
 section = 'devel'
 name = 'sync.status.pre-dirstate-write-file'
 documentation = """
 Makes the status algorithm wait for the existence of this file \
 (or until a timeout of `devel.sync.status.pre-dirstate-write-file-timeout` \
 seconds) before taking the lock and writing the dirstate. \
 Status signals that it's ready to wait by creating a file \
 with the same name + `.waiting`. \
 Useful when testing race conditions."""
 
 [[items]]
 section = 'devel'
 name = 'sync.status.pre-dirstate-write-file-timeout'
 default=2
 
 [[items]]
 section = 'devel'
 name = 'sync.dirstate.post-docket-read-file'
 
 [[items]]
 section = 'devel'
 name = 'sync.dirstate.post-docket-read-file-timeout'
 default=2
 
 [[items]]
 section = 'devel'
 name = 'sync.dirstate.pre-read-file'
 
 [[items]]
 section = 'devel'
 name = 'sync.dirstate.pre-read-file-timeout'
 default=2
 
 [[items]]
 section = "devel"
 name = "user.obsmarker"
 
 [[items]]
 section = "devel"
 name = "warn-config"
 
 [[items]]
 section = "devel"
 name = "warn-config-default"
 
 [[items]]
 section = "devel"
 name = "warn-config-unknown"
 
 [[items]]
 section = "devel"
 name = "warn-empty-changegroup"
 default = false
 
 [[items]]
 section = "diff"
 name = "merge"
 default = false
 experimental = true
 
 [[items]]
 section = "email"
 name = "bcc"
 
 [[items]]
 section = "email"
 name = "cc"
 
 [[items]]
 section = "email"
 name = "charsets"
 default-type = "list_type"
 
 [[items]]
 section = "email"
 name = "from"
 
 [[items]]
 section = "email"
 name = "method"
 default = "smtp"
 
 [[items]]
 section = "email"
 name = "reply-to"
 
 [[items]]
 section = "email"
 name = "to"
 
 [[items]]
 section = "experimental"
 name = "archivemetatemplate"
 default-type = "dynamic"
 
 [[items]]
 section = "experimental"
 name = "auto-publish"
 default = "publish"
 
 
 # The current implementation of the filtering/injecting of topological heads is
 # naive and need proper benchmark and optimisation because we can envision
 # moving the the v3 of the branch-cache format out of experimental
 [[items]]
 section = "experimental"
 name = "branch-cache-v3"
 default = false
 
 [[items]]
 section = "experimental"
 name = "bundle-phases"
 default = false
 
 [[items]]
 section = "experimental"
 name = "bundle2-advertise"
 default = true
 
 [[items]]
 section = "experimental"
 name = "bundle2-output-capture"
 default = false
 
 [[items]]
 section = "experimental"
 name = "bundle2.pushback"
 default = false
 
 [[items]]
 section = "experimental"
 name = "bundle2lazylocking"
 default = false
 
 [[items]]
 section = "experimental"
 name = "bundlecomplevel"
 
 [[items]]
 section = "experimental"
 name = "bundlecomplevel.bzip2"
 
 [[items]]
 section = "experimental"
 name = "bundlecomplevel.gzip"
 
 [[items]]
 section = "experimental"
 name = "bundlecomplevel.none"
 
 [[items]]
 section = "experimental"
 name = "bundlecomplevel.zstd"
 
 [[items]]
 section = "experimental"
 name = "bundlecompthreads"
 
 [[items]]
 section = "experimental"
 name = "bundlecompthreads.bzip2"
 
 [[items]]
 section = "experimental"
 name = "bundlecompthreads.gzip"
 
 [[items]]
 section = "experimental"
 name = "bundlecompthreads.none"
 
 [[items]]
 section = "experimental"
 name = "bundlecompthreads.zstd"
 
 [[items]]
 section = "experimental"
 name = "changegroup3"
 default = true
 
 [[items]]
 section = "experimental"
 name = "changegroup4"
 default = false
 
 # might remove rank configuration once the computation has no impact
 [[items]]
 section = "experimental"
 name = "changelog-v2.compute-rank"
 default = true
 
 [[items]]
 section = "experimental"
 name = "cleanup-as-archived"
 default = false
 
 [[items]]
 section = "experimental"
 name = "clientcompressionengines"
 default-type = "list_type"
 
 [[items]]
 section = "experimental"
 name = "copies.read-from"
 default = "filelog-only"
 
 [[items]]
 section = "experimental"
 name = "copies.write-to"
 default = "filelog-only"
 
 [[items]]
 section = "experimental"
 name = "copytrace"
 default = "on"
 
 [[items]]
 section = "experimental"
 name = "copytrace.movecandidateslimit"
 default = 100
 
 [[items]]
 section = "experimental"
 name = "copytrace.sourcecommitlimit"
 default = 100
 
 [[items]]
 section = "experimental"
 name = "crecordtest"
 
 [[items]]
 section = "experimental"
 name = "directaccess"
 default = false
 
 [[items]]
 section = "experimental"
 name = "directaccess.revnums"
 default = false
 
 [[items]]
 section = "experimental"
 name = "editortmpinhg"
 default = false
 
 [[items]]
 section = "experimental"
 name = "evolution"
 default-type = "list_type"
 
 [[items]]
 section = "experimental"
 name = "evolution.allowdivergence"
 default = false
 alias = [["experimental", "allowdivergence"]]
 
 [[items]]
 section = "experimental"
 name = "evolution.allowunstable"
 
 [[items]]
 section = "experimental"
 name = "evolution.bundle-obsmarker"
 default = false
 
 [[items]]
 section = "experimental"
 name = "evolution.bundle-obsmarker:mandatory"
 default = true
 
 [[items]]
 section = "experimental"
 name = "evolution.createmarkers"
 
 [[items]]
 section = "experimental"
 name = "evolution.effect-flags"
 default = true
 alias = [["experimental", "effect-flags"]]
 
 [[items]]
 section = "experimental"
 name = "evolution.exchange"
 
 [[items]]
 section = "experimental"
 name = "evolution.report-instabilities"
 default = true
 
 [[items]]
 section = "experimental"
 name = "evolution.track-operation"
 default = true
 
 [[items]]
 section = "experimental"
 name = "exportableenviron"
 default-type = "list_type"
 
 [[items]]
 section = "experimental"
 name = "extendedheader.index"
 
 [[items]]
 section = "experimental"
 name = "extendedheader.similarity"
 default = false
 
 [[items]]
 section = "experimental"
 name = "extra-filter-revs"
 documentation = """Repo-level config to prevent a revset from being visible.
 The target use case is to use `share` to expose different subsets of the same \
 repository, especially server side. See also `server.view`."""
 
 [[items]]
 section = "experimental"
 name = "graphshorten"
 default = false
 
 [[items]]
 section = "experimental"
 name = "graphstyle.grandparent"
 default-type = "dynamic"
 
 [[items]]
 section = "experimental"
 name = "graphstyle.missing"
 default-type = "dynamic"
 
 [[items]]
 section = "experimental"
 name = "graphstyle.parent"
 default-type = "dynamic"
 
 [[items]]
 section = "experimental"
 name = "hook-track-tags"
 default = false
 
 [[items]]
 section = "experimental"
 name = "httppostargs"
 default = false
 
 [[items]]
 section = "experimental"
 name = "log.topo"
 default = false
 
 [[items]]
 section = "experimental"
 name = "maxdeltachainspan"
 default = -1
 
 [[items]]
 section = "experimental"
 name = "merge-track-salvaged"
 default = false
 documentation = """Tracks files which were undeleted (merge might delete them \
 but we explicitly kept/undeleted them) and creates new filenodes for them."""
 
 [[items]]
 section = "experimental"
 name = "merge.checkpathconflicts"
 default = false
 
 [[items]]
 section = "experimental"
 name = "narrow"
 default = false
 
 [[items]]
 section = "experimental"
 name = "nointerrupt"
 default = false
 
 [[items]]
 section = "experimental"
 name = "nointerrupt-interactiveonly"
 default = true
 
 [[items]]
 section = "experimental"
 name = "nonnormalparanoidcheck"
 default = false
 
 [[items]]
 section = "experimental"
 name = "obsmarkers-exchange-debug"
 default = false
 
 [[items]]
 section = "experimental"
 name = "rebaseskipobsolete"
 default = true
 
 [[items]]
 section = "experimental"
 name = "remotenames"
 default = false
 
 [[items]]
 section = "experimental"
 name = "removeemptydirs"
 default = true
 
 [[items]]
 section = "experimental"
 name = "revert.interactive.select-to-keep"
 default = false
 
 [[items]]
 section = "experimental"
 name = "revisions.disambiguatewithin"
 
 [[items]]
 section = "experimental"
 name = "revisions.prefixhexnode"
 default = false
 
 # "out of experimental" todo list.
 #
 # * include management of a persistent nodemap in the main docket
 # * enforce a "no-truncate" policy for mmap safety
 #      - for censoring operation
 #      - for stripping operation
 #      - for rollback operation
 # * proper streaming (race free) of the docket file
 # * track garbage data to evemtually allow rewriting -existing- sidedata.
 # * Exchange-wise, we will also need to do something more efficient than
 #   keeping references to the affected revlogs, especially memory-wise when
 #   rewriting sidedata.
 # * introduce a proper solution to reduce the number of filelog related files.
 # * use caching for reading sidedata (similar to what we do for data).
 # * no longer set offset=0 if sidedata_size=0 (simplify cutoff computation).
 # * Improvement to consider
 #   - avoid compression header in chunk using the default compression?
 #   - forbid "inline" compression mode entirely?
 #   - split the data offset and flag field (the 2 bytes save are mostly trouble)
 #   - keep track of uncompressed -chunk- size (to preallocate memory better)
 #   - keep track of chain base or size (probably not that useful anymore)
 [[items]]
 section = "experimental"
 name = "revlogv2"
 
 [[items]]
 section = "experimental"
 name = "rust.index"
 default = false
 
 [[items]]
 section = "experimental"
 name = "server.allow-hidden-access"
 default-type = "list_type"
 
 [[items]]
 section = "experimental"
 name = "server.filesdata.recommended-batch-size"
 default = 50000
 
 [[items]]
 section = "experimental"
 name = "server.manifestdata.recommended-batch-size"
 default = 100000
 
 [[items]]
 section = "experimental"
 name = "server.stream-narrow-clones"
 default = false
 
 [[items]]
 section = "experimental"
 name = "single-head-per-branch"
 default = false
 
 [[items]]
 section = "experimental"
 name = "single-head-per-branch:account-closed-heads"
 default = false
 
 [[items]]
 section = "experimental"
 name = "single-head-per-branch:public-changes-only"
 default = false
 
 [[items]]
 section = "experimental"
 name = "sparse-read"
 default = false
 
 [[items]]
 section = "experimental"
 name = "sparse-read.density-threshold"
 default = 0.5
 
 [[items]]
 section = "experimental"
 name = "sparse-read.min-gap-size"
 default = "65K"
 
 [[items]]
 section = "experimental"
 name = "stream-v3"
 default = false
 
 [[items]]
 section = "experimental"
 name = "treemanifest"
 default = false
 
 [[items]]
 section = "experimental"
 name = "update.atomic-file"
 default = false
 
 [[items]]
 section = "experimental"
 name = "web.full-garbage-collection-rate"
 default = 1  # still forcing a full collection on each request
 
 [[items]]
 section = "experimental"
 name = "worker.repository-upgrade"
 default = false
 
 [[items]]
 section = "experimental"
 name = "worker.wdir-get-thread-safe"
 default = false
 
 [[items]]
 section = "experimental"
 name = "xdiff"
 default = false
 
 [[items]]
 section = "extdata"
 name = ".*"
 generic = true
 
 [[items]]
 section = "extensions"
 name = "[^:]*"
 generic = true
 
 [[items]]
 section = "extensions"
 name = "[^:]*:required"
 default = false
 generic = true
 
 
 # The format section is dedicated to control of the repository on disk format
 # and constraints.
 #
 # A format change affects which data is expected to be stored in the repository
 # and how. It impacts other client whichever their version are, format change
 # often comes with an associated entry in the requirements.
 #
 # The option are usually in the form `use-xxx-yyy` (with xxx-yy the feature name).
 #
 # To configure details of how the repository is accessed, without affect the
 # repository formats, see the `storage section`.
 
 [[items]]
 section = "format"
 name = "bookmarks-in-store"
 default = false
 
 [[items]]
 section = "format"
 name = "chunkcachesize"
 experimental = true
 
 [[items]]
 section = "format"
 name = "dotencode"
 default = true
 
 # The interaction between the archived phase and obsolescence markers needs to
 # be sorted out before wider usage of this are to be considered.
 #
 # At the time this message is written, behavior when archiving obsolete
 # changeset differ significantly from stripping. As part of stripping, we also
 # remove the obsolescence marker associated to the stripped changesets,
 # revealing the precedecessors changesets when applicable. When archiving, we
 # don't touch the obsolescence markers, keeping everything hidden. This can
 # result in quite confusing situation for people combining exchanging draft
 # with the archived phases. As some markers needed by others may be skipped
 # during exchange.
 [[items]]
 section = "format"
 name = "exp-archived-phase"
 default = false
 experimental = true
 
 # Experimental TODOs:
 #
 # * Same as for revlogv2 (but for the reduction of the number of files)
 # * Actually computing the rank of changesets
 # * Improvement to investigate
 #   - storing .hgtags fnode
 #   - storing branch related identifier
 [[items]]
 section = "format"
 name = "exp-use-changelog-v2"
 experimental = true
 
 [[items]]
 section = "format"
 name = "exp-use-copies-side-data-changeset"
 default = false
 experimental = true
 
 [[items]]
 section = "format"
 name = "generaldelta"
 default = false
 experimental = true
 
 [[items]]
 section = "format"
 name = "manifestcachesize"
 experimental = true
 
 [[items]]
 section = "format"
 name = "maxchainlen"
 default-type = "dynamic"
 experimental = true
 
 [[items]]
 section = "format"
 name = "obsstore-version"
 
 [[items]]
 section = "format"
 name = "revlog-compression"
 default-type = "lambda"
 alias = [["experimental", "format.compression"]]
 default = [ "zstd", "zlib",]
 
 [[items]]
 section = "format"
 name = "sparse-revlog"
 default = true
 
 [[items]]
 section = "format"
 name = "use-dirstate-tracked-hint"
 default = false
 experimental = true
 
 [[items]]
 section = "format"
 name = "use-dirstate-tracked-hint.automatic-upgrade-of-mismatching-repositories"
 default = false
 experimental = true
 
 [[items]]
 section = "format"
 name = "use-dirstate-tracked-hint.automatic-upgrade-of-mismatching-repositories:quiet"
 default = false
 experimental = true
 
 [[items]]
 section = "format"
 name = "use-dirstate-tracked-hint.version"
 default = 1
 experimental = true
 
 [[items]]
 section = "format"
 name = "use-dirstate-v2"
 default = false
 alias = [["format", "exp-rc-dirstate-v2"]]
 experimental = true
 documentation = """Enables dirstate-v2 format *when creating a new repository*.
 Which format to use for existing repos is controlled by `.hg/requires`."""
 
 [[items]]
 section = "format"
 name = "use-dirstate-v2.automatic-upgrade-of-mismatching-repositories"
 default = false
 experimental = true
 
 [[items]]
 section = "format"
 name = "use-dirstate-v2.automatic-upgrade-of-mismatching-repositories:quiet"
 default = false
 experimental = true
 
 # Having this on by default means we are confident about the scaling of phases.
 # This is not garanteed to be the case at the time this message is written.
 [[items]]
 section = "format"
 name = "use-internal-phase"
 default = false
 experimental = true
 
 [[items]]
 section = "format"
 name = "use-persistent-nodemap"
 default-type = "dynamic"
 
 [[items]]
 section = "format"
 name = "use-share-safe"
 default = true
 
 [[items]]
 section = "format"
 name = "use-share-safe.automatic-upgrade-of-mismatching-repositories"
 default = false
 experimental = true
 
 [[items]]
 section = "format"
 name = "use-share-safe.automatic-upgrade-of-mismatching-repositories:quiet"
 default = false
 experimental = true
 
 [[items]]
 section = "format"
 name = "usefncache"
 default = true
 
 [[items]]
 section = "format"
 name = "usegeneraldelta"
 default = true
 
 [[items]]
 section = "format"
 name = "usestore"
 default = true
 
 [[items]]
 section = "fsmonitor"
 name = "warn_update_file_count"
 default = 50000
 
 [[items]]
 section = "fsmonitor"
 name = "warn_update_file_count_rust"
 default = 400000
 
 [[items]]
 section = "fsmonitor"
 name = "warn_when_unused"
 default = true
 
 [[items]]
 section = "help"
 name = 'hidden-command\..*'
 default = false
 generic = true
 
 [[items]]
 section = "help"
 name = 'hidden-topic\..*'
 default = false
 generic = true
 
 [[items]]
 section = "hgweb-paths"
 name = ".*"
 default-type = "list_type"
 generic = true
 
 [[items]]
 section = "hooks"
 name = ".*:run-with-plain"
 default = true
 generic = true
 
 [[items]]
 section = "hooks"
 name = "[^:]*"
 default-type = "dynamic"
 generic = true
 
 [[items]]
 section = "hostfingerprints"
 name = ".*"
 default-type = "list_type"
 generic = true
 
 [[items]]
 section = "hostsecurity"
 name = ".*:ciphers$"
 default-type = "dynamic"
 generic = true
 
 [[items]]
 section = "hostsecurity"
 name = ".*:fingerprints$"
 default-type = "list_type"
 generic = true
 
 [[items]]
 section = "hostsecurity"
 name = ".*:minimumprotocol$"
 default-type = "dynamic"
 generic = true
 
 [[items]]
 section = "hostsecurity"
 name = ".*:verifycertsfile$"
 generic = true
 
 [[items]]
 section = "hostsecurity"
 name = "ciphers"
 
 [[items]]
 section = "hostsecurity"
 name = "minimumprotocol"
 default-type = "dynamic"
 
 [[items]]
 section = "http"
 name = "timeout"
 
 [[items]]
 section = "http_proxy"
 name = "always"
 default = false
 
 [[items]]
 section = "http_proxy"
 name = "host"
 
 [[items]]
 section = "http_proxy"
 name = "no"
 default-type = "list_type"
 
 [[items]]
 section = "http_proxy"
 name = "passwd"
 
 [[items]]
 section = "http_proxy"
 name = "user"
 
 [[items]]
 section = "logtoprocess"
 name = "command"
 
 [[items]]
 section = "logtoprocess"
 name = "commandexception"
 
 [[items]]
 section = "logtoprocess"
 name = "commandfinish"
 
 [[items]]
 section = "logtoprocess"
 name = "develwarn"
 
 [[items]]
 section = "logtoprocess"
 name = "uiblocked"
 
 [[items]]
 section = "merge"
 name = "checkignored"
 default = "abort"
 
 [[items]]
 section = "merge"
 name = "checkunknown"
 default = "abort"
 
 [[items]]
 section = "merge"
 name = "disable-partial-tools"
 default = false
 experimental = true
 
 [[items]]
 section = "merge"
 name = "followcopies"
 default = true
 
 [[items]]
 section = "merge"
 name = "on-failure"
 default = "continue"
 
 [[items]]
 section = "merge"
 name = "preferancestor"
 default-type = "lambda"
 default = ["*"]
 experimental = true
 
 [[items]]
 section = "merge"
 name = "strict-capability-check"
 default = false
 
 [[items]]
 section = "merge-tools"
 name = ".*"
 generic = true
 
 [[items]]
 section = "merge-tools"
 name = '.*\.args$'
 default = "$local $base $other"
 generic = true
 priority = -1
 
 [[items]]
 section = "merge-tools"
 name = '.*\.binary$'
 default = false
 generic = true
 priority = -1
 
 [[items]]
 section = "merge-tools"
 name = '.*\.check$'
 default-type = "list_type"
 generic = true
 priority = -1
 
 [[items]]
 section = "merge-tools"
 name = '.*\.checkchanged$'
 default = false
 generic = true
 priority = -1
 
 [[items]]
 section = "merge-tools"
 name = '.*\.executable$'
 default-type = "dynamic"
 generic = true
 priority = -1
 
 [[items]]
 section = "merge-tools"
 name = '.*\.fixeol$'
 default = false
 generic = true
 priority = -1
 
 [[items]]
 section = "merge-tools"
 name = '.*\.gui$'
 default = false
 generic = true
 priority = -1
 
 [[items]]
 section = "merge-tools"
 name = '.*\.mergemarkers$'
 default = "basic"
 generic = true
 priority = -1
 
 [[items]]
 section = "merge-tools"
 name = '.*\.mergemarkertemplate$'  # take from command-templates.mergemarker
 default-type = "dynamic"
 generic = true
 priority = -1
 
 [[items]]
 section = "merge-tools"
 name = '.*\.premerge$'
 default-type = "dynamic"
 generic = true
 priority = -1
 
 [[items]]
 section = "merge-tools"
 name = '.*\.priority$'
 default = 0
 generic = true
 priority = -1
 
 [[items]]
 section = "merge-tools"
 name = '.*\.regappend$'
 default = ""
 generic = true
 priority = -1
 
 [[items]]
 section = "merge-tools"
 name = '.*\.symlink$'
 default = false
 generic = true
 priority = -1
 
 [[items]]
 section = "pager"
 name = "attend-.*"
 default-type = "dynamic"
 generic = true
 
 [[items]]
 section = "pager"
 name = "ignore"
 default-type = "list_type"
 
 [[items]]
 section = "pager"
 name = "pager"
 default-type = "dynamic"
 
 [[items]]
 section = "partial-merge-tools"
 name = ".*"
 generic = true
 experimental = true
 
 [[items]]
 section = "partial-merge-tools"
 name = '.*\.args'
 default = "$local $base $other"
 generic = true
 priority = -1
 experimental = true
 
 [[items]]
 section = "partial-merge-tools"
 name = '.*\.disable'
 default = false
 generic = true
 priority = -1
 experimental = true
 
 [[items]]
 section = "partial-merge-tools"
 name = '.*\.executable$'
 default-type = "dynamic"
 generic = true
 priority = -1
 experimental = true
 
 [[items]]
 section = "partial-merge-tools"
 name = '.*\.order'
 default = 0
 generic = true
 priority = -1
 experimental = true
 
 [[items]]
 section = "partial-merge-tools"
 name = '.*\.patterns'
 default-type = "dynamic"
 generic = true
 priority = -1
 experimental = true
 
 [[items]]
 section = "patch"
 name = "eol"
 default = "strict"
 
 [[items]]
 section = "patch"
 name = "fuzz"
 default = 2
 
 [[items]]
 section = "paths"
 name = "[^:]*"
 generic = true
 
 [[items]]
 section = "paths"
 name = ".*:bookmarks.mode"
 default = "default"
 generic = true
 
 [[items]]
 section = "paths"
 name = ".*:multi-urls"
 default = false
 generic = true
 
 [[items]]
 section = "paths"
 name = ".*:pulled-delta-reuse-policy"
 generic = true
 
 [[items]]
 section = "paths"
 name = ".*:pushrev"
 generic = true
 
 [[items]]
 section = "paths"
 name = ".*:pushurl"
 generic = true
 
 [[items]]
 section = "paths"
 name = "default"
 
 [[items]]
 section = "paths"
 name = "default-push"
 
 [[items]]
 section = "phases"
 name = "checksubrepos"
 default = "follow"
 
 [[items]]
 section = "phases"
 name = "new-commit"
 default = "draft"
 
 [[items]]
 section = "phases"
 name = "publish"
 default = true
 
 [[items]]
 section = "profiling"
 name = "enabled"
 default = false
 
 [[items]]
 section = "profiling"
 name = "format"
 default = "text"
 
 [[items]]
 section = "profiling"
 name = "freq"
 default = 1000
 
 [[items]]
 section = "profiling"
 name = "limit"
 default = 30
 
 [[items]]
 section = "profiling"
 name = "nested"
 default = 0
 
 [[items]]
 section = "profiling"
 name = "output"
 
 [[items]]
 section = "profiling"
 name = "showmax"
 default = 0.999
 
 [[items]]
 section = "profiling"
 name = "showmin"
 default-type = "dynamic"
 
 [[items]]
 section = "profiling"
 name = "showtime"
 default = true
 
 [[items]]
 section = "profiling"
 name = "sort"
 default = "inlinetime"
 
 [[items]]
 section = "profiling"
 name = "statformat"
 default = "hotpath"
 
 [[items]]
 section = "profiling"
 name = "time-track"
 default-type = "dynamic"
 
 [[items]]
 section = "profiling"
 name = "type"
 default = "stat"
 
 [[items]]
 section = "profiling"
 name = "py-spy.exe"
 default = "py-spy"
 
 [[items]]
 section = "profiling"
 name = "py-spy.freq"
 default = 100
 
 [[items]]
 section = "profiling"
 name = "py-spy.format"
 
 [[items]]
 section = "progress"
 name = "assume-tty"
 default = false
 
 [[items]]
 section = "progress"
 name = "changedelay"
 default = 1
 
 [[items]]
 section = "progress"
 name = "clear-complete"
 default = true
 
 [[items]]
 section = "progress"
 name = "debug"
 default = false
 
 [[items]]
 section = "progress"
 name = "delay"
 default = 3
 
 [[items]]
 section = "progress"
 name = "disable"
 default = false
 
 [[items]]
 section = "progress"
 name = "estimateinterval"
 default = 60.0
 
 [[items]]
 section = "progress"
 name = "format"
 default-type = "lambda"
 default = [ "topic", "bar", "number", "estimate",]
 
 [[items]]
 section = "progress"
 name = "refresh"
 default = 0.1
 
 [[items]]
 section = "progress"
 name = "width"
 default-type = "dynamic"
 
 [[items]]
 section = "pull"
 name = "confirm"
 default = false
 
 [[items]]
 section = "push"
 name = "pushvars.server"
 default = false
 
 [[items]]
 section = "rebase"
 name = "experimental.inmemory"
 default = false
 
 [[items]]
 section = "rebase"
 name = "singletransaction"
 default = false
 
 [[items]]
 section = "rebase"
 name = "store-source"
 default = true
 experimental = true
 documentation = """Controls creation of a `rebase_source` extra field during rebase.
 When false, no such field is created. This is useful e.g. for incrementally \
 converting changesets and then rebasing them onto an existing repo.
 WARNING: this is an advanced setting reserved for people who know \
 exactly what they are doing. Misuse of this setting can easily \
 result in obsmarker cycles and a vivid headache."""
 
 [[items]]
 section = "rewrite"
 name = "backup-bundle"
 default = true
 alias = [["ui", "history-editing-backup"]]
 
 [[items]]
 section = "rewrite"
 name = "empty-successor"
 default = "skip"
 experimental = true
 
 [[items]]
 section = "rewrite"
 name = "update-timestamp"
 default = false
 
 [[items]]
 section = "rhg"
 name = "cat"
 default = true
 experimental = true
 documentation = """rhg cat has some quirks that need to be ironed out. \
 In particular, the `-r` argument accepts a partial hash, but does not \
 correctly resolve `abcdef` as a potential bookmark, tag or branch name."""
 
 [[items]]
 section = "rhg"
 name = "fallback-exectutable"
 experimental = true
 
 [[items]]
 section = "rhg"
 name = "fallback-immediately"
 default = false
 experimental = true
 
 [[items]]
 section = "rhg"
 name = "ignored-extensions"
 default-type = "list_type"
 experimental = true
 
 [[items]]
 section = "rhg"
 name = "on-unsupported"
 default = "abort"
 experimental = true
 
 [[items]]
 section = "server"
 name = "bookmarks-pushkey-compat"
 default = true
 
 [[items]]
 section = "server"
 name = "bundle1"
 default = true
 
 [[items]]
 section = "server"
 name = "bundle1.pull"
 
 [[items]]
 section = "server"
 name = "bundle1.push"
 
 [[items]]
 section = "server"
 name = "bundle1gd"
 
 [[items]]
 section = "server"
 name = "bundle1gd.pull"
 
 [[items]]
 section = "server"
 name = "bundle1gd.push"
 
 [[items]]
 section = "server"
 name = "bundle2.stream"
 default = true
 alias = [["experimental", "bundle2.stream"]]
 
 [[items]]
 section = "server"
 name = "compressionengines"
 default-type = "list_type"
 
 [[items]]
 section = "server"
 name = "concurrent-push-mode"
 default = "check-related"
 
 [[items]]
 section = "server"
 name = "disablefullbundle"
 default = false
 
 [[items]]
 section = "server"
 name = "maxhttpheaderlen"
 default = 1024
 
 [[items]]
 section = "server"
 name = "preferuncompressed"
 default = false
 
 [[items]]
 section = "server"
 name = "pullbundle"
 default = true
 
 [[items]]
 section = "server"
 name = "streamunbundle"
 default = false
 
 [[items]]
 section = "server"
 name = "uncompressed"
 default = true
 
 [[items]]
 section = "server"
 name = "uncompressedallowsecret"
 default = false
 
 [[items]]
 section = "server"
 name = "validate"
 default = false
 
 [[items]]
 section = "server"
 name = "view"
 default = "served"
 
 [[items]]
 section = "server"
 name = "zliblevel"
 default = -1
 
 [[items]]
 section = "server"
 name = "zstdlevel"
 default = 3
 
 [[items]]
 section = "share"
 name = "pool"
 
 [[items]]
 section = "share"
 name = "poolnaming"
 default = "identity"
 
 [[items]]
 section = "share"
 name = "safe-mismatch.source-not-safe"
 default = "abort"
 
 [[items]]
 section = "share"
 name = "safe-mismatch.source-not-safe.warn"
 default = true
 
 [[items]]
 section = "share"
 name = "safe-mismatch.source-not-safe:verbose-upgrade"
 default = true
 
 [[items]]
 section = "share"
 name = "safe-mismatch.source-safe"
 default = "abort"
 
 [[items]]
 section = "share"
 name = "safe-mismatch.source-safe.warn"
 default = true
 
 [[items]]
 section = "share"
 name = "safe-mismatch.source-safe:verbose-upgrade"
 default = true
 
 [[items]]
 section = "shelve"
 name = "maxbackups"
 default = 10
 
 [[items]]
 section = "shelve"
 name = "store"
 default = "internal"
 experimental = true
 
 [[items]]
 section = "smtp"
 name = "host"
 
 [[items]]
 section = "smtp"
 name = "local_hostname"
 
 [[items]]
 section = "smtp"
 name = "password"
 
 [[items]]
 section = "smtp"
 name = "port"
 default-type = "dynamic"
 
 [[items]]
 section = "smtp"
 name = "tls"
 default = "none"
 
 [[items]]
 section = "smtp"
 name = "username"
 
 [[items]]
 section = "sparse"
 name = "missingwarning"
 default = true
 experimental = true
 
 
 # The "storage" section house config options that change how the repository
 # data are accessed by  the current process but does not affects the on disk
 # format. They can also adjust how the storage is computed, but without affect
 # compatibility wither other clients.
 #
 # For deeper format change, see the `format` section.
 
 
 [[items]]
 section = "storage"
 name = "dirstate-v2.slow-path"
 default = "abort"
 experimental = true  # experimental as long as format.use-dirstate-v2 is.
 
 [[items]]
 section = "storage"
 name = "revbranchcache.mmap"
-default = false
+default = true
 
 [[items]]
 section = "storage"
 name = "new-repo-backend"
 default = "revlogv1"
 experimental = true
 
 [[items]]
 section = "storage"
 name = "revlog.delta-parent-search.candidate-group-chunk-size"
 default = 20
 
 [[items]]
 section = "storage"
 name = "revlog.issue6528.fix-incoming"
 default = true
 
 [[items]]
 section = "storage"
 name = "revlog.mmap.index"
 default-type = "dynamic"
 
 [[items]]
 section = "storage"
 name = "revlog.mmap.index:size-threshold"
 default = "1 MB"
 
 [[items]]
 section = "storage"
 name = "revlog.optimize-delta-parent-choice"
 default = true
 alias = [["format", "aggressivemergedeltas"]]
 
 [[items]]
 section = "storage"
 name = "revlog.persistent-nodemap.mmap"
 default = true
 
 [[items]]
 section = "storage"
 name = "revlog.persistent-nodemap.slow-path"
 default = "abort"
 
 [[items]]
 section = "storage"
 name = "revlog.reuse-external-delta"
 default = true
 
 [[items]]
 section = "storage"
 name = "revlog.reuse-external-delta-parent"
 documentation = """This option is true unless `format.generaldelta` is set."""
 
 [[items]]
 section = "storage"
 name = "revlog.zlib.level"
 
 [[items]]
 section = "storage"
 name = "revlog.zstd.level"
 
 [[items]]
 section = "subrepos"
 name = "allowed"
 default-type = "dynamic"  # to make backporting simpler
 
 [[items]]
 section = "subrepos"
 name = "git:allowed"
 default-type = "dynamic"
 
 [[items]]
 section = "subrepos"
 name = "hg:allowed"
 default-type = "dynamic"
 
 [[items]]
 section = "subrepos"
 name = "svn:allowed"
 default-type = "dynamic"
 
 [[items]]
 section = "templateconfig"
 name = ".*"
 default-type = "dynamic"
 generic = true
 
 [[items]]
 section = "templates"
 name = ".*"
 generic = true
 
 [[items]]
 section = "trusted"
 name = "groups"
 default-type = "list_type"
 
 [[items]]
 section = "trusted"
 name = "users"
 default-type = "list_type"
 
 [[items]]
 section = "ui"
 name = "_usedassubrepo"
 default = false
 
 [[items]]
 section = "ui"
 name = "allowemptycommit"
 default = false
 
 [[items]]
 section = "ui"
 name = "archivemeta"
 default = true
 
 [[items]]
 section = "ui"
 name = "askusername"
 default = false
 
 [[items]]
 section = "ui"
 name = "available-memory"
 
 [[items]]
 section = "ui"
 name = "clonebundlefallback"
 default = false
 
 [[items]]
 section = "ui"
 name = "clonebundleprefers"
 default-type = "list_type"
 
 [[items]]
 section = "ui"
 name = "clonebundles"
 default = true
 
 [[items]]
 section = "ui"
 name = "color"
 default = "auto"
 
 [[items]]
 section = "ui"
 name = "commitsubrepos"
 default = false
 
 [[items]]
 section = "ui"
 name = "debug"
 default = false
 
 [[items]]
 section = "ui"
 name = "debugger"
 
 [[items]]
 section = "ui"
 name = "detailed-exit-code"
 default = false
 experimental = true
 
 [[items]]
 section = "ui"
 name = "editor"
 default-type = "dynamic"
 
 [[items]]
 section = "ui"
 name = "fallbackencoding"
 
 [[items]]
 section = "ui"
 name = "forcecwd"
 
 [[items]]
 section = "ui"
 name = "forcemerge"
 
 [[items]]
 section = "ui"
 name = "formatdebug"
 default = false
 
 [[items]]
 section = "ui"
 name = "formatjson"
 default = false
 
 [[items]]
 section = "ui"
 name = "formatted"
 
 [[items]]
 section = "ui"
 name = "interactive"
 
 [[items]]
 section = "ui"
 name = "interface"
 
 [[items]]
 section = "ui"
 name = "interface.chunkselector"
 
 [[items]]
 section = "ui"
 name = "large-file-limit"
 default = 10485760
 
 [[items]]
 section = "ui"
 name = "logblockedtimes"
 default = false
 
 [[items]]
 section = "ui"
 name = "merge"
 
 [[items]]
 section = "ui"
 name = "mergemarkers"
 default = "basic"
 
 [[items]]
 section = "ui"
 name = "message-output"
 default = "stdio"
 
 [[items]]
 section = "ui"
 name = "nontty"
 default = false
 
 [[items]]
 section = "ui"
 name = "origbackuppath"
 
 [[items]]
 section = "ui"
 name = "paginate"
 default = true
 
 [[items]]
 section = "ui"
 name = "patch"
 
 [[items]]
 section = "ui"
 name = "portablefilenames"
 default = "warn"
 
 [[items]]
 section = "ui"
 name = "promptecho"
 default = false
 
 [[items]]
 section = "ui"
 name = "quiet"
 default = false
 
 [[items]]
 section = "ui"
 name = "quietbookmarkmove"
 default = false
 
 [[items]]
 section = "ui"
 name = "relative-paths"
 default = "legacy"
 
 [[items]]
 section = "ui"
 name = "remotecmd"
 default = "hg"
 
 [[items]]
 section = "ui"
 name = "report_untrusted"
 default = true
 
 [[items]]
 section = "ui"
 name = "rollback"
 default = true
 
 [[items]]
 section = "ui"
 name = "signal-safe-lock"
 default = true
 
 [[items]]
 section = "ui"
 name = "slash"
 default = false
 
 [[items]]
 section = "ui"
 name = "ssh"
 default = "ssh"
 
 [[items]]
 section = "ui"
 name = "ssherrorhint"
 
 [[items]]
 section = "ui"
 name = "statuscopies"
 default = false
 
 [[items]]
 section = "ui"
 name = "strict"
 default = false
 
 [[items]]
 section = "ui"
 name = "style"
 default = ""
 
 [[items]]
 section = "ui"
 name = "supportcontact"
 
 [[items]]
 section = "ui"
 name = "textwidth"
 default = 78
 
 [[items]]
 section = "ui"
 name = "timeout"
 default = "600"
 
 [[items]]
 section = "ui"
 name = "timeout.warn"
 default = 0
 
 [[items]]
 section = "ui"
 name = "timestamp-output"
 default = false
 
 [[items]]
 section = "ui"
 name = "traceback"
 default = false
 
 [[items]]
 section = "ui"
 name = "tweakdefaults"
 default = false
 
 [[items]]
 section = "ui"
 name = "username"
 alias = [["ui", "user"]]
 
 [[items]]
 section = "ui"
 name = "verbose"
 default = false
 
 [[items]]
 section = "usage"
 name = "repository-role"
 default = "default"
 documentation = """What this repository is used for.
 
 This is used to adjust behavior and performance to best fit the repository purpose.
 
 Currently recognised values are:
 - default: an all purpose repository
 """
 
 [[items]]
 section = "usage"
 name = "resources"
 default = "default"
 documentation = """How aggressive Mercurial can be with resource usage:
 
 Currently recognised values are:
 - default: the default value currently is equivalent to medium,
 - high:    allows for higher cpu, memory and disk-space usage to improve the performance of some operations.
 - medium:  aims at a moderate resource usage,
 - low:     reduces resources usage when possible, decreasing overall performance.
 
 For finer configuration, see also `usage.resources.cpu`,
 `usage.resources.disk` and `usage.resources.memory`.
 """
 
 [[items]]
 section = "usage"
 name = "resources.cpu"
 default = "default"
 documentation = """How aggressive Mercurial can be in terms of cpu usage:
 
 Currently recognised values are:
 - default: the default value, inherits the value from `usage.resources`,
 - high:    allows for more aggressive cpu usage, improving storage quality and
            the performance of some operations at the expense of machine load
 - medium:  aims at a moderate cpu usage,
 - low:     reduces cpu usage when possible, potentially at the expense of
            slower operations, increased storage and exchange payload.
 
 """
 
 [[items]]
 section = "usage"
 name = "resources.disk"
 default = "default"
 documentation = """How aggressive Mercurial can be in terms of disk usage:
 
 Currently recognised values are:
 - default: the default value, inherits the value from `usage.resources`,
 - high:    allows for more disk space usage where it can improve the performance,
 - medium:  aims at a moderate disk usage,
 - low:     reduces disk usage when possible, decreasing performance in some occasion.
 """
 
 [[items]]
 section = "usage"
 name = "resources.memory"
 default = "default"
 documentation = """How aggressive Mercurial can be in terms of memory usage:
 
 Currently recognised values are:
 - default: the default value, inherits the value from `usage.resources`,
 - high:    allows for more aggressive memory usage to improve overall performance,
 - medium:  aims at a moderate memory usage,
 - low:     reduces memory usage when possible at the cost of overall performance.
 """
 
 [[items]]
 section = "verify"
 name = "skipflags"
 default = 0
 
 [[items]]
 section = "web"
 name = "accesslog"
 default = "-"
 
 [[items]]
 section = "web"
 name = "address"
 default = ""
 
 [[items]]
 section = "web"
 name = "allow-archive"
 default-type = "list_type"
 alias = [["web", "allow_archive"]]
 
 [[items]]
 section = "web"
 name = "allow-pull"
 default = true
 alias = [["web", "allowpull"]]
 
 [[items]]
 section = "web"
 name = "allow-push"
 default-type = "list_type"
 alias = [["web", "allow_push"]]
 
 [[items]]
 section = "web"
 name = "allow_read"
 default-type = "list_type"
 
 [[items]]
 section = "web"
 name = "allowbz2"
 default = false
 
 [[items]]
 section = "web"
 name = "allowgz"
 default = false
 
 [[items]]
 section = "web"
 name = "allowzip"
 default = false
 
 [[items]]
 section = "web"
 name = "archivesubrepos"
 default = false
 
 [[items]]
 section = "web"
 name = "baseurl"
 
 [[items]]
 section = "web"
 name = "cacerts"
 
 [[items]]
 section = "web"
 name = "cache"
 default = true
 
 [[items]]
 section = "web"
 name = "certificate"
 
 [[items]]
 section = "web"
 name = "collapse"
 default = false
 
 [[items]]
 section = "web"
 name = "comparisoncontext"
 default = 5
 
 [[items]]
 section = "web"
 name = "contact"
 
 [[items]]
 section = "web"
 name = "csp"
 
 [[items]]
 section = "web"
 name = "deny_push"
 default-type = "list_type"
 
 [[items]]
 section = "web"
 name = "deny_read"
 default-type = "list_type"
 
 [[items]]
 section = "web"
 name = "descend"
 default = true
 
 [[items]]
 section = "web"
 name = "description"
 default = ""
 
 [[items]]
 section = "web"
 name = "encoding"
 default-type = "lazy_module"
 default = "encoding.encoding"
 
 [[items]]
 section = "web"
 name = "errorlog"
 default = "-"
 
 [[items]]
 section = "web"
 name = "guessmime"
 default = false
 
 [[items]]
 section = "web"
 name = "hidden"
 default = false
 
 [[items]]
 section = "web"
 name = "ipv6"
 default = false
 
 [[items]]
 section = "web"
 name = "labels"
 default-type = "list_type"
 
 [[items]]
 section = "web"
 name = "logoimg"
 default = "hglogo.png"
 
 [[items]]
 section = "web"
 name = "logourl"
 default = "https://mercurial-scm.org/"
 
 [[items]]
 section = "web"
 name = "maxchanges"
 default = 10
 
 [[items]]
 section = "web"
 name = "maxfiles"
 default = 10
 
 [[items]]
 section = "web"
 name = "maxshortchanges"
 default = 60
 
 [[items]]
 section = "web"
 name = "motd"
 default = ""
 
 [[items]]
 section = "web"
 name = "name"
 default-type = "dynamic"
 
 [[items]]
 section = "web"
 name = "port"
 default = 8000
 
 [[items]]
 section = "web"
 name = "prefix"
 default = ""
 
 [[items]]
 section = "web"
 name = "push_ssl"
 default = true
 
 [[items]]
 section = "web"
 name = "refreshinterval"
 default = 20
 
 [[items]]
 section = "web"
 name = "server-header"
 
 [[items]]
 section = "web"
 name = "static"
 
 [[items]]
 section = "web"
 name = "staticurl"
 
 [[items]]
 section = "web"
 name = "stripes"
 default = 1
 
 [[items]]
 section = "web"
 name = "style"
 default = "paper"
 
 [[items]]
 section = "web"
 name = "templates"
 
 [[items]]
 section = "web"
 name = "view"
 default = "served"
 experimental = true
 
 [[items]]
 section = "worker"
 name = "backgroundclose"
 default-type = "dynamic"
 
 [[items]]
 section = "worker"
 name = "backgroundclosemaxqueue"
 # Windows defaults to a limit of 512 open files. A buffer of 128
 # should give us enough headway.
 default = 384
 
 [[items]]
 section = "worker"
 name = "backgroundcloseminfilecount"
 default = 2048
 
 [[items]]
 section = "worker"
 name = "backgroundclosethreadcount"
 default = 4
 
 [[items]]
 section = "worker"
 name = "enabled"
 default = true
 
 [[items]]
 section = "worker"
 name = "numcpus"
 
 # Templates and template applications
 
 [[template-applications]]
 template = "diff-options"
 section = "annotate"
 
 [[template-applications]]
 template = "diff-options"
 section = "commands"
 prefix = "commit.interactive"
 
 [[template-applications]]
 template = "diff-options"
 section = "commands"
 prefix = "revert.interactive"
 
 [[template-applications]]
 template = "diff-options"
 section = "diff"
 
 [templates]
 [[templates.diff-options]]
 suffix = "nodates"
 default = false
 
 [[templates.diff-options]]
 suffix = "showfunc"
 default = false
 
 [[templates.diff-options]]
 suffix = "unified"
 
 [[templates.diff-options]]
 suffix = "git"
 default = false
 
 [[templates.diff-options]]
 suffix = "ignorews"
 default = false
 
 [[templates.diff-options]]
 suffix = "ignorewsamount"
 default = false
 
 [[templates.diff-options]]
 suffix = "ignoreblanklines"
 default = false
 
 [[templates.diff-options]]
 suffix = "ignorewseol"
 default = false
 
 [[templates.diff-options]]
 suffix = "nobinary"
 default = false
 
 [[templates.diff-options]]
 suffix = "noprefix"
 default = false
 
 [[templates.diff-options]]
 suffix = "word-diff"
 default = false
 
 # In-core extensions
 
 [[items]]
 section = "blackbox"
 name = "debug.to-stderr"
 default = false
 in_core_extension = "blackbox"
 
 [[items]]
 section = "blackbox"
 name = "dirty"
 default = false
 in_core_extension = "blackbox"
 
 [[items]]
 section = "blackbox"
 name = "maxsize"
 default = "1 MB"
 in_core_extension = "blackbox"
 
 [[items]]
 section = "blackbox"
 name = "logsource"
 default = false
 in_core_extension = "blackbox"
 
 [[items]]
 section = "blackbox"
 name = "maxfiles"
 default = 7
 in_core_extension = "blackbox"
 
 [[items]]
 section = "blackbox"
 name = "track"
 default-type = "lambda"
 default = ["*"]
 in_core_extension = "blackbox"
 
 [[items]]
 section = "blackbox"
 name = "ignore"
 default-type = "lambda"
 default = ["chgserver", "cmdserver", "extension"]
 in_core_extension = "blackbox"
 
 [[items]]
 section = "blackbox"
 name = "date-format"
 default = ""
 in_core_extension = "blackbox"