##// END OF EJS Templates
exchangev2: fetch manifest revisions...
exchangev2: fetch manifest revisions Now that the server has support for retrieving manifest data, we can implement the client bits to call it. We teach the changeset fetching code to capture the manifest revisions that are encountered on incoming changesets. We then feed this into a new function which filters out known manifests and then batches up manifest data requests to the server. This is different from the previous wire protocol in a few notable ways. First, the client fetches manifest data separately and explicitly. Before, we'd ask the server for data pertaining to some changesets (via a "getbundle" command) and manifests (and files) would be sent automatically. Providing an API for looking up just manifest data separately gives clients much more flexibility for manifest management. For example, a client may choose to only fetch manifest data on demand instead of prefetching it (i.e. partial clone). Second, we send N commands to the server for manifest retrieval instead of 1. This property has a few nice side-effects. One is that the deterministic nature of the requests lends itself to server-side caching. For example, say the remote has 50,000 manifests. If the server is configured to cache responses, each time a new commit arrives, you will have a cache miss and need to regenerate all outgoing data. But if you makes N requests requesting 10,000 manifests each, a new commit will still yield cache hits on the initial, unchanged manifest batches/requests. A derived benefit from these properties is that resumable clone is conceptually simpler to implement. When making a monolithic request for all of the repository data, recovering from an interrupted clone is hard because the server was in the driver's seat and was maintaining state about all the data that needed transferred. With the client driving fetching, the client can persist the set of unfetched entities and retry/resume a fetch if something goes wrong. Or we can fetch all data N changesets at a time and slowly build up a repository. This approach is drastically easier to implement when we have server APIs exposing low-level repository primitives (such as manifests and files). We don't yet support tree manifests. But it should be possible to implement that with the existing wire protocol command. Differential Revision: https://phab.mercurial-scm.org/D4489

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r39406:46f3ff64 default
r39674:d292328e default
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map-cmdline.default
91 lines | 3.5 KiB | text/plain | TextLexer
Jordi Gutiérrez Hermoso
log: rewrite default template to use labels (issue2866)...
r22766 # Base templates. Due to name clashes with existing keywords, we have
# to replace some keywords with 'lkeyword', for 'labelled keyword'
Yuya Nishihara
templater: load template fragments from [templates] section in map file...
r34715
[templates]
Yuya Nishihara
templates: rename "user" to "luser" defined in default map file (API)...
r38982 changeset = '{cset}{branches}{bookmarks}{tags}{parents}{luser}{ldate}{ltroubles}{lobsfate}{summary}\n'
Yuya Nishihara
templates: fix "log -q" output of default style...
r24304 changeset_quiet = '{lnode}'
Yuya Nishihara
templates: rename "user" to "luser" defined in default map file (API)...
r38982 changeset_verbose = '{cset}{branches}{bookmarks}{tags}{parents}{luser}{ldate}{ltroubles}{lobsfate}{lfiles}{lfile_copies_switch}{description}\n'
changeset_debug = '{fullcset}{branches}{bookmarks}{tags}{lphase}{parents}{manifest}{luser}{ldate}{ltroubles}{lobsfate}{lfile_mods}{lfile_adds}{lfile_dels}{lfile_copies_switch}{extras}{description}\n'
Jordi Gutiérrez Hermoso
log: rewrite default template to use labels (issue2866)...
r22766
# File templates
lfiles = '{if(files,
label("ui.note log.files",
"files: {files}\n"))}'
lfile_mods = '{if(file_mods,
label("ui.debug log.files",
"files: {file_mods}\n"))}'
lfile_adds = '{if(file_adds,
label("ui.debug log.files",
"files+: {file_adds}\n"))}'
lfile_dels = '{if(file_dels,
label("ui.debug log.files",
"files-: {file_dels}\n"))}'
lfile_copies_switch = '{if(file_copies_switch,
label("ui.note log.copies",
"copies: {file_copies_switch
% ' {name} ({source})'}\n"))}'
# General templates
Yuya Nishihara
templates: introduce labelcset() function in map-cmdline.default as example
r34717 cset = '{labelcset("changeset: {rev}:{node|short}")}\n'
fullcset = '{labelcset("changeset: {rev}:{node}")}\n'
Jordi Gutiérrez Hermoso
log: rewrite default template to use labels (issue2866)...
r22766
lphase = '{label("log.phase",
"phase: {phase}")}\n'
parent = '{label("log.parent changeset.{phase}",
"parent: {rev}:{node|formatnode}")}\n'
Yuya Nishihara
templates: fix "log -q" output of default style...
r24304 lnode = '{label("log.node",
Jordi Gutiérrez Hermoso
log: rewrite default template to use labels (issue2866)...
r22766 "{rev}:{node|short}")}\n'
manifest = '{label("ui.debug log.manifest",
"manifest: {rev}:{node}")}\n'
branch = '{label("log.branch",
"branch: {branch}")}\n'
tag = '{label("log.tag",
"tag: {tag}")}\n'
bookmark = '{label("log.bookmark",
"bookmark: {bookmark}")}\n'
Yuya Nishihara
templates: rename "user" to "luser" defined in default map file (API)...
r38982 luser = '{label("log.user",
"user: {author}")}\n'
Jordi Gutiérrez Hermoso
log: rewrite default template to use labels (issue2866)...
r22766
Yuya Nishihara
templates-default: do not show description or summary if empty...
r24637 summary = '{if(desc|strip, "{label('log.summary',
'summary: {desc|firstline}')}\n")}'
Jordi Gutiérrez Hermoso
log: rewrite default template to use labels (issue2866)...
r22766
ldate = '{label("log.date",
"date: {date|date}")}\n'
Boris Feld
label: rename log.trouble into log.instability...
r33778 ltroubles = '{if(instabilities, "{label('log.instability',
Boris Feld
template: rename troubles templatekw into instabilities...
r33675 'instability: {join(instabilities, ", ")}')}\n")}'
Denis Laxalde
templates: display evolution "troubles" in command line style
r30713
Jordi Gutiérrez Hermoso
log: rewrite default template to use labels (issue2866)...
r22766 extra = '{label("ui.debug log.extra",
"extra: {key}={value|stringescape}")}\n'
Yuya Nishihara
templates-default: do not show description or summary if empty...
r24637 description = '{if(desc|strip, "{label('ui.note log.description',
'description:')}
{label('ui.note log.description',
'{desc|strip}')}\n\n")}'
Matt Mackall
templates: add a default template style for status...
r25514
Yuya Nishihara
status: rename {copy} to {source} for compatibility with {file_copies} (BC)...
r39406 status = '{status} {path|relpath}\n{if(source, " {source|relpath}\n")}'
Yuya Nishihara
templates: introduce labelcset() function in map-cmdline.default as example
r34717
Boris Feld
obsfate: add obsfate to default mapfile...
r34854 # Obsfate templates, it would be removed once we introduce the obsfate
# template fragment
Boris Feld
obsfate: rename obsfate into obsolete in default mapfile...
r34902 lobsfate = '{if(obsfate, "{label('log.obsfate', '{obsfate % "obsolete: {fate}\n"}')}")}'
Boris Feld
obsfate: add obsfate to default mapfile...
r34854
Yuya Nishihara
templates: introduce labelcset() function in map-cmdline.default as example
r34717 [templatealias]
labelcset(expr) = label(separate(" ",
"log.changeset",
"changeset.{phase}",
if(obsolete, "changeset.obsolete"),
if(instabilities, "changeset.unstable"),
Yuya Nishihara
templates: fix missed space between instability labels
r34718 join(instabilities
% "instability.{instability}", " ")),
Yuya Nishihara
templates: introduce labelcset() function in map-cmdline.default as example
r34717 expr)