mirror of
https://github.com/facebook/sapling.git
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c058e72f48
Summary: A little step towards asyncifying the filestore. This is just mechanical, without removing clones. TBD: add a diff, which starts to actually use the benefits of new futures. Reviewed By: farnz Differential Revision: D20534272 fbshipit-source-id: a038e6f22b666f3f2c9782ee25c0c2582ddced6c
106 lines
2.9 KiB
Rust
106 lines
2.9 KiB
Rust
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This software may be used and distributed according to the terms of the
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* GNU General Public License version 2.
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*/
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#![deny(warnings)]
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use anyhow::{format_err, Error};
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use blobstore::Loadable;
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use clap::Arg;
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use cloned::cloned;
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use context::CoreContext;
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use fbinit::FacebookInit;
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use futures::{
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compat::Future01CompatExt,
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stream::{self, TryStreamExt},
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};
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use mercurial_types::{HgFileNodeId, HgNodeHash};
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use std::str::FromStr;
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use cmdlib::{args, helpers::block_execute};
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const NAME: &str = "rechunker";
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const DEFAULT_NUM_JOBS: usize = 10;
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#[fbinit::main]
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fn main(fb: FacebookInit) -> Result<(), Error> {
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let matches = args::MononokeApp::new(NAME)
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.with_advanced_args_hidden()
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.build()
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.version("0.0.0")
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.about("Rechunk blobs using the filestore")
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.arg(
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Arg::with_name("filenodes")
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.value_name("FILENODES")
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.takes_value(true)
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.required(true)
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.min_values(1)
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.help("filenode IDs for blobs to be rechunked"),
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)
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.arg(
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Arg::with_name("jobs")
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.short("j")
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.long("jobs")
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.value_name("JOBS")
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.takes_value(true)
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.help("The number of filenodes to rechunk in parallel"),
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)
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.get_matches();
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args::init_cachelib(fb, &matches, None);
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let logger = args::init_logging(fb, &matches);
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let ctx = CoreContext::new_with_logger(fb, logger.clone());
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let jobs: usize = matches
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.value_of("jobs")
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.map_or(Ok(DEFAULT_NUM_JOBS), |j| j.parse())
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.map_err(Error::from)?;
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let filenode_ids: Vec<_> = matches
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.values_of("filenodes")
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.unwrap()
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.into_iter()
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.map(|f| {
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HgNodeHash::from_str(f)
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.map(HgFileNodeId::new)
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.map_err(|e| format_err!("Invalid Sha1: {}", e))
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})
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.collect();
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let blobrepo = args::open_repo(fb, &logger, &matches);
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let rechunk = async move {
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let blobrepo = blobrepo.compat().await?;
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stream::iter(filenode_ids)
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.try_for_each_concurrent(jobs, |fid| {
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cloned!(blobrepo, ctx);
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async move {
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let env = fid.load(ctx.clone(), blobrepo.blobstore()).compat().await?;
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let content_id = env.content_id();
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filestore::force_rechunk(
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blobrepo.get_blobstore(),
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blobrepo.filestore_config().clone(),
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ctx,
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content_id,
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)
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.await
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.map(|_| ())
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}
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})
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.await
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};
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block_execute(
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rechunk,
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fb,
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"rechunker",
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&logger,
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&matches,
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cmdlib::monitoring::AliveService,
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)
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}
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