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Refactor: Extract new crate binstalk-fetchers (#1291)

Browse source 
To reduce `binstalk` codegen and enable better reuse.

Signed-off-by: Jiahao XU <Jiahao_XU@outlook.com>
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Jiahao XU 2023-08-14 13:20:34 +10:00 • committed by GitHub
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commit 76c72469eb
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19 changed files with 1008 additions and 122 deletions
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[package]
name = "binstalk-fetchers"
version = "0.0.0"
edition = "2021"
description = "The binstall fetchers"
repository = "https://github.com/cargo-bins/cargo-binstall"
documentation = "https://docs.rs/binstalk-fetchers"
rust-version = "1.65.0"
authors = ["Jiahao XU <Jiahao_XU@outlook.com>"]
license = "GPL-3.0-only"
[dependencies]
async-trait = "0.1.68"
binstalk-downloader = { version = "0.7.0", path = "../binstalk-downloader", default-features = false, features = ["gh-api-client"] }
binstalk-types = { version = "0.5.0", path = "../binstalk-types" }
compact_str = { version = "0.7.0" }
either = "1.8.1"
itertools = "0.11.0"
leon = { version = "2.0.1", path = "../leon", features = ["miette"] }
leon-macros = { version = "1.0.0", path = "../leon-macros" }
miette = "5.9.0"
once_cell = "1.18.0"
strum = "0.25.0"
thiserror = "1.0.40"
tokio = { version = "1.30.0", features = ["rt", "sync"], default-features = false }
tracing = "0.1.37"
url = "2.3.1"
[dev-dependencies]
binstalk-downloader = { version = "0.7.0", path = "../binstalk-downloader" }

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crates/binstalk-fetchers/LICENSE Normal file
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free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<https://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.

60
crates/binstalk-fetchers/src/common.rs Normal file
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use std::sync::{
atomic::{AtomicBool, Ordering::Relaxed},
Once,
};
use binstalk_downloader::gh_api_client::{GhReleaseArtifact, HasReleaseArtifact};
pub(super) use binstalk_downloader::{
download::{Download, ExtractedFiles},
gh_api_client::GhApiClient,
remote::{Client, Method, Url},
};
pub(super) use binstalk_types::cargo_toml_binstall::{PkgFmt, PkgMeta};
pub(super) use compact_str::CompactString;
pub(super) use tokio::task::JoinHandle;
pub(super) use tracing::{debug, instrument, warn};
use crate::FetchError;
/// This function returns a future where its size should be at most size of
/// 2-4 pointers.
pub(super) async fn does_url_exist(
client: Client,
gh_api_client: GhApiClient,
url: &Url,
) -> Result<bool, FetchError> {
static GH_API_CLIENT_FAILED: AtomicBool = AtomicBool::new(false);
static WARN_RATE_LIMIT_ONCE: Once = Once::new();
static WARN_UNAUTHORIZED_ONCE: Once = Once::new();
debug!("Checking for package at: '{url}'");
if !GH_API_CLIENT_FAILED.load(Relaxed) {
if let Some(artifact) = GhReleaseArtifact::try_extract_from_url(url) {
debug!("Using GitHub API to check for existence of artifact, which will also cache the API response");
// The future returned has the same size as a pointer
match gh_api_client.has_release_artifact(artifact).await? {
HasReleaseArtifact::Yes => return Ok(true),
HasReleaseArtifact::No | HasReleaseArtifact::NoSuchRelease => return Ok(false),
HasReleaseArtifact::RateLimit { retry_after } => {
WARN_RATE_LIMIT_ONCE.call_once(|| {
warn!("Your GitHub API token (if any) has reached its rate limit and cannot be used again until {retry_after:?}, so we will fallback to HEAD/GET on the url.");
warn!("If you did not supply a github token, consider doing so: GitHub limits unauthorized users to 60 requests per hour per origin IP address.");
});
}
HasReleaseArtifact::Unauthorized => {
WARN_UNAUTHORIZED_ONCE.call_once(|| {
warn!("GitHub API somehow requires a token for the API access, so we will fallback to HEAD/GET on the url.");
warn!("Please consider supplying a token to cargo-binstall to speedup resolution.");
});
}
}
GH_API_CLIENT_FAILED.store(true, Relaxed);
}
}
Ok(Box::pin(client.remote_gettable(url.clone())).await?)
}

76
crates/binstalk-fetchers/src/futures_resolver.rs Normal file
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use std::{future::Future, pin::Pin};
use tokio::sync::mpsc;
/// Given multiple futures with output = `Result<Option<T>, E>`,
/// returns the the first one that returns either `Err(_)` or
/// `Ok(Some(_))`.
pub struct FuturesResolver<T, E> {
rx: mpsc::Receiver<Result<T, E>>,
tx: mpsc::Sender<Result<T, E>>,
}
impl<T, E> Default for FuturesResolver<T, E> {
fn default() -> Self {
// We only need the first one, so the channel is of size 1.
let (tx, rx) = mpsc::channel(1);
Self { tx, rx }
}
}
impl<T: Send + 'static, E: Send + 'static> FuturesResolver<T, E> {
/// Insert new future into this resolver, they will start running
/// right away.
pub fn push<Fut>(&self, fut: Fut)
where
Fut: Future<Output = Result<Option<T>, E>> + Send + 'static,
{
let tx = self.tx.clone();
tokio::spawn(async move {
tokio::pin!(fut);
Self::spawn_inner(fut, tx).await;
});
}
async fn spawn_inner(
fut: Pin<&mut (dyn Future<Output = Result<Option<T>, E>> + Send)>,
tx: mpsc::Sender<Result<T, E>>,
) {
let res = tokio::select! {
biased;
_ = tx.closed() => return,
res = fut => res,
};
if let Some(res) = res.transpose() {
// try_send can only fail due to being full or being closed.
//
// In both cases, this could means some other future has
// completed first.
//
// For closed, it could additionally means that the task
// is cancelled.
tx.try_send(res).ok();
}
}
/// Insert multiple futures into this resolver, they will start running
/// right away.
pub fn extend<Fut, Iter>(&self, iter: Iter)
where
Fut: Future<Output = Result<Option<T>, E>> + Send + 'static,
Iter: IntoIterator<Item = Fut>,
{
iter.into_iter().for_each(|fut| self.push(fut));
}
/// Return the resolution.
pub fn resolve(self) -> impl Future<Output = Result<Option<T>, E>> {
let mut rx = self.rx;
drop(self.tx);
async move { rx.recv().await.transpose() }
}
}

543
crates/binstalk-fetchers/src/gh_crate_meta.rs Normal file
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use std::{borrow::Cow, fmt, iter, marker::PhantomData, path::Path, sync::Arc};
use compact_str::{CompactString, ToCompactString};
use either::Either;
use leon::Template;
use once_cell::sync::OnceCell;
use strum::IntoEnumIterator;
use tracing::{debug, warn};
use url::Url;
use crate::{
common::*, futures_resolver::FuturesResolver, Data, FetchError, InvalidPkgFmtError, RepoInfo,
TargetDataErased,
};
pub(crate) mod hosting;
pub struct GhCrateMeta {
client: Client,
gh_api_client: GhApiClient,
data: Arc<Data>,
target_data: Arc<TargetDataErased>,
resolution: OnceCell<(Url, PkgFmt)>,
}
impl GhCrateMeta {
fn launch_baseline_find_tasks(
&self,
futures_resolver: &FuturesResolver<(Url, PkgFmt), FetchError>,
pkg_fmt: PkgFmt,
pkg_url: &Template<'_>,
repo: Option<&str>,
subcrate: Option<&str>,
) {
let render_url = |ext| {
let ctx = Context::from_data_with_repo(
&self.data,
&self.target_data.target,
&self.target_data.target_related_info,
ext,
repo,
subcrate,
);
match ctx.render_url_with_compiled_tt(pkg_url) {
Ok(url) => Some(url),
Err(err) => {
warn!("Failed to render url for {ctx:#?}: {err}");
None
}
}
};
let is_windows = self.target_data.target.contains("windows");
let urls = if pkg_url.has_any_of_keys(&["format", "archive-format", "archive-suffix"]) {
// build up list of potential URLs
Either::Left(
pkg_fmt
.extensions(is_windows)
.iter()
.filter_map(|ext| render_url(Some(ext))),
)
} else {
Either::Right(render_url(None).into_iter())
};
// go check all potential URLs at once
futures_resolver.extend(urls.map(move |url| {
let client = self.client.clone();
let gh_api_client = self.gh_api_client.clone();
async move {
Ok(does_url_exist(client, gh_api_client, &url)
.await?
.then_some((url, pkg_fmt)))
}
}));
}
}
#[async_trait::async_trait]
impl super::Fetcher for GhCrateMeta {
fn new(
client: Client,
gh_api_client: GhApiClient,
data: Arc<Data>,
target_data: Arc<TargetDataErased>,
) -> Arc<dyn super::Fetcher> {
Arc::new(Self {
client,
gh_api_client,
data,
target_data,
resolution: OnceCell::new(),
})
}
fn find(self: Arc<Self>) -> JoinHandle<Result<bool, FetchError>> {
tokio::spawn(async move {
let info = self.data.get_repo_info(&self.client).await?.as_ref();
let repo = info.map(|info| &info.repo);
let subcrate = info.and_then(|info| info.subcrate.as_deref());
let mut pkg_fmt = self.target_data.meta.pkg_fmt;
let pkg_urls = if let Some(pkg_url) = self.target_data.meta.pkg_url.as_deref() {
let template = Template::parse(pkg_url)?;
if pkg_fmt.is_none()
&& !template.has_any_of_keys(&["format", "archive-format", "archive-suffix"])
{
// The crate does not specify the pkg-fmt, yet its pkg-url
// template doesn't contains format, archive-format or
// archive-suffix which is required for automatically
// deducing the pkg-fmt.
//
// We will attempt to guess the pkg-fmt there, but this is
// just a best-effort
pkg_fmt = PkgFmt::guess_pkg_format(pkg_url);
let crate_name = &self.data.name;
let version = &self.data.version;
let target = &self.target_data.target;
if pkg_fmt.is_none() {
return Err(InvalidPkgFmtError {
crate_name: crate_name.clone(),
version: version.clone(),
target: target.into(),
pkg_url: pkg_url.into(),
reason:
&"pkg-fmt is not specified, yet pkg-url does not contain format, \
archive-format or archive-suffix which is required for automatically deducing pkg-fmt",
}
.into());
}
warn!(
"Crate {crate_name}@{version} on target {target} does not specify pkg-fmt \
but its pkg-url also does not contain key format, archive-format or \
archive-suffix.\nbinstall was able to guess that from pkg-url, but \
just note that it could be wrong:\npkg-fmt=\"{pkg_fmt}\", pkg-url=\"{pkg_url}\"",
pkg_fmt = pkg_fmt.unwrap(),
);
}
Either::Left(iter::once(template))
} else if let Some(RepoInfo {
repo,
repository_host,
..
}) = info
{
if let Some(pkg_urls) = repository_host.get_default_pkg_url_template() {
let has_subcrate = subcrate.is_some();
Either::Right(
pkg_urls
.map(Template::cast)
// If subcrate is Some, then all templates will be included.
// Otherwise, only templates without key "subcrate" will be
// included.
.filter(move |template| has_subcrate || !template.has_key("subcrate")),
)
} else {
warn!(
concat!(
"Unknown repository {}, cargo-binstall cannot provide default pkg_url for it.\n",
"Please ask the upstream to provide it for target {}."
),
repo, self.target_data.target
);
return Ok(false);
}
} else {
warn!(
concat!(
"Package does not specify repository, cargo-binstall cannot provide default pkg_url for it.\n",
"Please ask the upstream to provide it for target {}."
),
self.target_data.target
);
return Ok(false);
};
// Convert Option<Url> to Option<String> to reduce size of future.
let repo = repo.map(|u| u.as_str().trim_end_matches('/'));
// Use reference to self to fix error of closure
// launch_baseline_find_tasks which moves `this`
let this = &self;
let pkg_fmts = if let Some(pkg_fmt) = pkg_fmt {
Either::Left(iter::once(pkg_fmt))
} else {
Either::Right(PkgFmt::iter())
};
let resolver = FuturesResolver::default();
// Iterate over pkg_urls first to avoid String::clone.
for pkg_url in pkg_urls {
// Clone iter pkg_fmts to ensure all pkg_fmts is
// iterated over for each pkg_url, which is
// basically cartesian product.
// |
for pkg_fmt in pkg_fmts.clone() {
this.launch_baseline_find_tasks(&resolver, pkg_fmt, &pkg_url, repo, subcrate);
}
}
if let Some((url, pkg_fmt)) = resolver.resolve().await? {
debug!("Winning URL is {url}, with pkg_fmt {pkg_fmt}");
self.resolution.set((url, pkg_fmt)).unwrap(); // find() is called first
Ok(true)
} else {
Ok(false)
}
})
}
async fn fetch_and_extract(&self, dst: &Path) -> Result<ExtractedFiles, FetchError> {
let (url, pkg_fmt) = self.resolution.get().unwrap(); // find() is called first
debug!(
"Downloading package from: '{url}' dst:{} fmt:{pkg_fmt:?}",
dst.display()
);
Ok(Download::new(self.client.clone(), url.clone())
.and_extract(*pkg_fmt, dst)
.await?)
}
fn pkg_fmt(&self) -> PkgFmt {
self.resolution.get().unwrap().1
}
fn target_meta(&self) -> PkgMeta {
let mut meta = self.target_data.meta.clone();
meta.pkg_fmt = Some(self.pkg_fmt());
meta
}
fn source_name(&self) -> CompactString {
self.resolution
.get()
.map(|(url, _pkg_fmt)| {
if let Some(domain) = url.domain() {
domain.to_compact_string()
} else if let Some(host) = url.host_str() {
host.to_compact_string()
} else {
url.to_compact_string()
}
})
.unwrap_or_else(|| "invalid url".into())
}
fn fetcher_name(&self) -> &'static str {
"GhCrateMeta"
}
fn is_third_party(&self) -> bool {
false
}
fn target(&self) -> &str {
&self.target_data.target
}
fn target_data(&self) -> &Arc<TargetDataErased> {
&self.target_data
}
}
/// Template for constructing download paths
#[derive(Clone)]
struct Context<'c> {
name: &'c str,
repo: Option<&'c str>,
target: &'c str,
version: &'c str,
/// Archive format e.g. tar.gz, zip
archive_format: Option<&'c str>,
archive_suffix: Option<&'c str>,
/// Filename extension on the binary, i.e. .exe on Windows, nothing otherwise
binary_ext: &'c str,
/// Workspace of the crate inside the repository.
subcrate: Option<&'c str>,
target_related_info: &'c dyn leon::Values,
}
impl fmt::Debug for Context<'_> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
#[allow(dead_code)]
#[derive(Debug)]
struct Context<'c> {
name: &'c str,
repo: Option<&'c str>,
target: &'c str,
version: &'c str,
archive_format: Option<&'c str>,
archive_suffix: Option<&'c str>,
binary_ext: &'c str,
subcrate: Option<&'c str>,
target_related_info: PhantomData<&'c dyn leon::Values>,
}
fmt::Debug::fmt(
&Context {
name: self.name,
repo: self.repo,
target: self.target,
version: self.version,
archive_format: self.archive_format,
archive_suffix: self.archive_suffix,
binary_ext: self.binary_ext,
subcrate: self.subcrate,
target_related_info: PhantomData,
},
f,
)
}
}
impl leon::Values for Context<'_> {
fn get_value<'s>(&'s self, key: &str) -> Option<Cow<'s, str>> {
match key {
"name" => Some(Cow::Borrowed(self.name)),
"repo" => self.repo.map(Cow::Borrowed),
"target" => Some(Cow::Borrowed(self.target)),
"version" => Some(Cow::Borrowed(self.version)),
"archive-format" => self.archive_format.map(Cow::Borrowed),
// Soft-deprecated alias for archive-format
"format" => self.archive_format.map(Cow::Borrowed),
"archive-suffix" => self.archive_suffix.map(Cow::Borrowed),
"binary-ext" => Some(Cow::Borrowed(self.binary_ext)),
"subcrate" => self.subcrate.map(Cow::Borrowed),
key => self.target_related_info.get_value(key),
}
}
}
impl<'c> Context<'c> {
fn from_data_with_repo(
data: &'c Data,
target: &'c str,
target_related_info: &'c dyn leon::Values,
archive_suffix: Option<&'c str>,
repo: Option<&'c str>,
subcrate: Option<&'c str>,
) -> Self {
let archive_format = archive_suffix.map(|archive_suffix| {
if archive_suffix.is_empty() {
// Empty archive_suffix means PkgFmt::Bin
"bin"
} else {
debug_assert!(archive_suffix.starts_with('.'), "{archive_suffix}");
&archive_suffix[1..]
}
});
Self {
name: &data.name,
repo,
target,
version: &data.version,
archive_format,
archive_suffix,
binary_ext: if target.contains("windows") {
".exe"
} else {
""
},
subcrate,
target_related_info,
}
}
/// * `tt` - must have added a template named "pkg_url".
fn render_url_with_compiled_tt(&self, tt: &Template<'_>) -> Result<Url, FetchError> {
debug!("Render {tt:#?} using context: {self:?}");
Ok(Url::parse(&tt.render(self)?)?)
}
#[cfg(test)]
fn render_url(&self, template: &str) -> Result<Url, FetchError> {
debug!("Render {template} using context in render_url: {self:?}");
let tt = Template::parse(template)?;
self.render_url_with_compiled_tt(&tt)
}
}
#[cfg(test)]
mod test {
use super::{super::Data, Context};
use compact_str::ToCompactString;
use url::Url;
const DEFAULT_PKG_URL: &str = "{ repo }/releases/download/v{ version }/{ name }-{ target }-v{ version }.{ archive-format }";
fn assert_context_rendering(
data: &Data,
target: &str,
archive_format: &str,
template: &str,
expected_url: &str,
) {
// The template provided doesn't need this, so just returning None
// is OK.
let target_info = leon::vals(|_| None);
let ctx = Context::from_data_with_repo(
data,
target,
&target_info,
Some(archive_format),
data.repo.as_deref(),
None,
);
let expected_url = Url::parse(expected_url).unwrap();
assert_eq!(ctx.render_url(template).unwrap(), expected_url);
}
#[test]
fn defaults() {
assert_context_rendering(
&Data::new(
"cargo-binstall".to_compact_string(),
"1.2.3".to_compact_string(),
Some("https://github.com/ryankurte/cargo-binstall".to_string()),
),
"x86_64-unknown-linux-gnu",
".tgz",
DEFAULT_PKG_URL,
"https://github.com/ryankurte/cargo-binstall/releases/download/v1.2.3/cargo-binstall-x86_64-unknown-linux-gnu-v1.2.3.tgz"
);
}
#[test]
fn no_repo_but_full_url() {
assert_context_rendering(
&Data::new(
"cargo-binstall".to_compact_string(),
"1.2.3".to_compact_string(),
None,
),
"x86_64-unknown-linux-gnu",
".tgz",
&format!("https://example.com{}", &DEFAULT_PKG_URL[8..]),
"https://example.com/releases/download/v1.2.3/cargo-binstall-x86_64-unknown-linux-gnu-v1.2.3.tgz"
);
}
#[test]
fn different_url() {
assert_context_rendering(
&Data::new(
"radio-sx128x".to_compact_string(),
"0.14.1-alpha.5".to_compact_string(),
Some("https://github.com/rust-iot/rust-radio-sx128x".to_string()),
),
"x86_64-unknown-linux-gnu",
".tgz",
"{ repo }/releases/download/v{ version }/sx128x-util-{ target }-v{ version }.{ archive-format }",
"https://github.com/rust-iot/rust-radio-sx128x/releases/download/v0.14.1-alpha.5/sx128x-util-x86_64-unknown-linux-gnu-v0.14.1-alpha.5.tgz"
);
}
#[test]
fn deprecated_format() {
assert_context_rendering(
&Data::new(
"radio-sx128x".to_compact_string(),
"0.14.1-alpha.5".to_compact_string(),
Some("https://github.com/rust-iot/rust-radio-sx128x".to_string()),
),
"x86_64-unknown-linux-gnu",
".tgz",
"{ repo }/releases/download/v{ version }/sx128x-util-{ target }-v{ version }.{ format }",
"https://github.com/rust-iot/rust-radio-sx128x/releases/download/v0.14.1-alpha.5/sx128x-util-x86_64-unknown-linux-gnu-v0.14.1-alpha.5.tgz"
);
}
#[test]
fn different_ext() {
assert_context_rendering(
&Data::new(
"cargo-watch".to_compact_string(),
"9.0.0".to_compact_string(),
Some("https://github.com/watchexec/cargo-watch".to_string()),
),
"aarch64-apple-darwin",
".txz",
"{ repo }/releases/download/v{ version }/{ name }-v{ version }-{ target }.tar.xz",
"https://github.com/watchexec/cargo-watch/releases/download/v9.0.0/cargo-watch-v9.0.0-aarch64-apple-darwin.tar.xz"
);
}
#[test]
fn no_archive() {
assert_context_rendering(
&Data::new(
"cargo-watch".to_compact_string(),
"9.0.0".to_compact_string(),
Some("https://github.com/watchexec/cargo-watch".to_string()),
),
"aarch64-pc-windows-msvc",
".bin",
"{ repo }/releases/download/v{ version }/{ name }-v{ version }-{ target }{ binary-ext }",
"https://github.com/watchexec/cargo-watch/releases/download/v9.0.0/cargo-watch-v9.0.0-aarch64-pc-windows-msvc.exe"
);
}
}

117
crates/binstalk-fetchers/src/gh_crate_meta/hosting.rs Normal file
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@ -0,0 +1,117 @@
use itertools::Itertools;
use leon::{Item, Template};
use leon_macros::template;
use url::Url;
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
pub enum RepositoryHost {
GitHub,
GitLab,
BitBucket,
SourceForge,
Unknown,
}
/// Make sure to update possible_dirs in `bins::infer_bin_dir_template`
/// if you modified FULL_FILENAMES or NOVERSION_FILENAMES.
pub const FULL_FILENAMES: &[Template<'_>] = &[
template!("/{ name }-{ target }-v{ version }{ archive-suffix }"),
template!("/{ name }-{ target }-{ version }{ archive-suffix }"),
template!("/{ name }-{ version }-{ target }{ archive-suffix }"),
template!("/{ name }-v{ version }-{ target }{ archive-suffix }"),
template!("/{ name }_{ target }_v{ version }{ archive-suffix }"),
template!("/{ name }_{ target }_{ version }{ archive-suffix }"),
template!("/{ name }_{ version }_{ target }{ archive-suffix }"),
template!("/{ name }_v{ version }_{ target }{ archive-suffix }"),
];
pub const NOVERSION_FILENAMES: &[Template<'_>] = &[
template!("/{ name }-{ target }{ archive-suffix }"),
template!("/{ name }_{ target }{ archive-suffix }"),
];
const GITHUB_RELEASE_PATHS: &[Template<'_>] = &[
template!("{ repo }/releases/download/{ version }"),
template!("{ repo }/releases/download/v{ version }"),
// %2F is escaped form of '/'
template!("{ repo }/releases/download/{ subcrate }%2F{ version }"),
template!("{ repo }/releases/download/{ subcrate }%2Fv{ version }"),
];
const GITLAB_RELEASE_PATHS: &[Template<'_>] = &[
template!("{ repo }/-/releases/{ version }/downloads/binaries"),
template!("{ repo }/-/releases/v{ version }/downloads/binaries"),
// %2F is escaped form of '/'
template!("{ repo }/-/releases/{ subcrate }%2F{ version }/downloads/binaries"),
template!("{ repo }/-/releases/{ subcrate }%2Fv{ version }/downloads/binaries"),
];
const BITBUCKET_RELEASE_PATHS: &[Template<'_>] = &[template!("{ repo }/downloads")];
const SOURCEFORGE_RELEASE_PATHS: &[Template<'_>] = &[
template!("{ repo }/files/binaries/{ version }"),
template!("{ repo }/files/binaries/v{ version }"),
// %2F is escaped form of '/'
template!("{ repo }/files/binaries/{ subcrate }%2F{ version }"),
template!("{ repo }/files/binaries/{ subcrate }%2Fv{ version }"),
];
impl RepositoryHost {
pub fn guess_git_hosting_services(repo: &Url) -> Self {
use RepositoryHost::*;
match repo.domain() {
Some(domain) if domain.starts_with("github") => GitHub,
Some(domain) if domain.starts_with("gitlab") => GitLab,
Some(domain) if domain == "bitbucket.org" => BitBucket,
Some(domain) if domain == "sourceforge.net" => SourceForge,
_ => Unknown,
}
}
pub fn get_default_pkg_url_template(
self,
) -> Option<impl Iterator<Item = Template<'static>> + Clone + 'static> {
use RepositoryHost::*;
match self {
GitHub => Some(apply_filenames_to_paths(
GITHUB_RELEASE_PATHS,
&[FULL_FILENAMES, NOVERSION_FILENAMES],
"",
)),
GitLab => Some(apply_filenames_to_paths(
GITLAB_RELEASE_PATHS,
&[FULL_FILENAMES, NOVERSION_FILENAMES],
"",
)),
BitBucket => Some(apply_filenames_to_paths(
BITBUCKET_RELEASE_PATHS,
&[FULL_FILENAMES],
"",
)),
SourceForge => Some(apply_filenames_to_paths(
SOURCEFORGE_RELEASE_PATHS,
&[FULL_FILENAMES, NOVERSION_FILENAMES],
"/download",
)),
Unknown => None,
}
}
}
fn apply_filenames_to_paths(
paths: &'static [Template<'static>],
filenames: &'static [&'static [Template<'static>]],
suffix: &'static str,
) -> impl Iterator<Item = Template<'static>> + Clone + 'static {
filenames
.iter()
.flat_map(|fs| fs.iter())
.cartesian_product(paths.iter())
.map(move |(filename, path)| {
let mut template = path.clone() + filename;
template += Item::Text(suffix);
template
})
}

324
crates/binstalk-fetchers/src/lib.rs Normal file
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use std::{path::Path, sync::Arc};
use binstalk_downloader::{
download::DownloadError, gh_api_client::GhApiError, remote::Error as RemoteError,
};
use thiserror::Error as ThisError;
use tokio::sync::OnceCell;
pub use url::ParseError as UrlParseError;
mod gh_crate_meta;
pub use gh_crate_meta::*;
mod quickinstall;
pub use quickinstall::*;
mod common;
use common::*;
mod futures_resolver;
use gh_crate_meta::hosting::RepositoryHost;
#[derive(Debug, ThisError)]
#[error("Invalid pkg-url {pkg_url} for {crate_name}@{version} on {target}: {reason}")]
pub struct InvalidPkgFmtError {
pub crate_name: CompactString,
pub version: CompactString,
pub target: CompactString,
pub pkg_url: Box<str>,
pub reason: &'static &'static str,
}
#[derive(Debug, ThisError, miette::Diagnostic)]
#[non_exhaustive]
#[cfg_attr(feature = "miette", derive(miette::Diagnostic))]
pub enum FetchError {
#[error(transparent)]
Download(#[from] DownloadError),
#[error("Failed to parse template: {0}")]
#[diagnostic(transparent)]
TemplateParse(#[from] leon::ParseError),
#[error("Failed to render template: {0}")]
#[diagnostic(transparent)]
TemplateRender(#[from] leon::RenderError),
#[error("Failed to render template: {0}")]
GhApi(#[from] GhApiError),
#[error(transparent)]
InvalidPkgFmt(Box<InvalidPkgFmtError>),
#[error("Failed to parse url: {0}")]
UrlParse(#[from] UrlParseError),
}
impl From<RemoteError> for FetchError {
fn from(e: RemoteError) -> Self {
DownloadError::from(e).into()
}
}
impl From<InvalidPkgFmtError> for FetchError {
fn from(e: InvalidPkgFmtError) -> Self {
Self::InvalidPkgFmt(Box::new(e))
}
}
#[async_trait::async_trait]
pub trait Fetcher: Send + Sync {
/// Create a new fetcher from some data
#[allow(clippy::new_ret_no_self)]
fn new(
client: Client,
gh_api_client: GhApiClient,
data: Arc<Data>,
target_data: Arc<TargetDataErased>,
) -> Arc<dyn Fetcher>
where
Self: Sized;
/// Fetch a package and extract
async fn fetch_and_extract(&self, dst: &Path) -> Result<ExtractedFiles, FetchError>;
/// Find the package, if it is available for download
///
/// This may look for multiple remote targets, but must write (using some form of interior
/// mutability) the best one to the implementing struct in some way so `fetch_and_extract` can
/// proceed without additional work.
///
/// Must return `true` if a package is available, `false` if none is, and reserve errors to
/// fatal conditions only.
fn find(self: Arc<Self>) -> JoinHandle<Result<bool, FetchError>>;
/// Report to upstream that cargo-binstall tries to use this fetcher.
/// Currently it is only overriden by [`quickinstall::QuickInstall`].
fn report_to_upstream(self: Arc<Self>) {}
/// Return the package format
fn pkg_fmt(&self) -> PkgFmt;
/// Return finalized target meta.
fn target_meta(&self) -> PkgMeta;
/// A short human-readable name or descriptor for the package source
fn source_name(&self) -> CompactString;
/// A short human-readable name, must contains only characters
/// and numbers and it also must be unique.
///
/// It is used to create a temporary dir where it is used for
/// [`Fetcher::fetch_and_extract`].
fn fetcher_name(&self) -> &'static str;
/// Should return true if the remote is from a third-party source
fn is_third_party(&self) -> bool;
/// Return the target for this fetcher
fn target(&self) -> &str;
fn target_data(&self) -> &Arc<TargetDataErased>;
}
#[derive(Clone, Debug)]
struct RepoInfo {
repo: Url,
repository_host: RepositoryHost,
subcrate: Option<CompactString>,
}
/// Data required to fetch a package
#[derive(Clone, Debug)]
pub struct Data {
name: CompactString,
version: CompactString,
repo: Option<String>,
repo_info: OnceCell<Option<RepoInfo>>,
}
impl Data {
pub fn new(name: CompactString, version: CompactString, repo: Option<String>) -> Self {
Self {
name,
version,
repo,
repo_info: OnceCell::new(),
}
}
#[instrument(level = "debug")]
async fn get_repo_info(&self, client: &Client) -> Result<&Option<RepoInfo>, FetchError> {
self.repo_info
.get_or_try_init(move || {
Box::pin(async move {
if let Some(repo) = self.repo.as_deref() {
let mut repo = client.get_redirected_final_url(Url::parse(repo)?).await?;
let repository_host = RepositoryHost::guess_git_hosting_services(&repo);
let repo_info = RepoInfo {
subcrate: RepoInfo::detect_subcrate(&mut repo, repository_host),
repo,
repository_host,
};
debug!("Resolved repo_info = {repo_info:#?}");
Ok(Some(repo_info))
} else {
Ok(None)
}
})
})
.await
}
}
impl RepoInfo {
/// If `repo` contains a subcrate, then extracts and returns it.
/// It will also remove that subcrate path from `repo` to match
/// `scheme:/{repo_owner}/{repo_name}`
fn detect_subcrate(repo: &mut Url, repository_host: RepositoryHost) -> Option<CompactString> {
match repository_host {
RepositoryHost::GitHub => Self::detect_subcrate_common(repo, &["tree"]),
RepositoryHost::GitLab => Self::detect_subcrate_common(repo, &["-", "blob"]),
_ => None,
}
}
fn detect_subcrate_common(repo: &mut Url, seps: &[&str]) -> Option<CompactString> {
let mut path_segments = repo.path_segments()?;
let _repo_owner = path_segments.next()?;
let _repo_name = path_segments.next()?;
// Skip separators
for sep in seps.iter().copied() {
if path_segments.next()? != sep {
return None;
}
}
// Skip branch name
let _branch_name = path_segments.next()?;
let (subcrate, is_crate_present) = match path_segments.next()? {
// subcrate url is of path /crates/$subcrate_name, e.g. wasm-bindgen-cli
"crates" => (path_segments.next()?, true),
// subcrate url is of path $subcrate_name, e.g. cargo-audit
subcrate => (subcrate, false),
};
if path_segments.next().is_some() {
// A subcrate url should not contain anything more.
None
} else {
let subcrate = subcrate.into();
// Pop subcrate path to match regular repo style:
//
// scheme:/{addr}/{repo_owner}/{repo_name}
//
// path_segments() succeeds, so path_segments_mut()
// must also succeeds.
let mut paths = repo.path_segments_mut().unwrap();
paths.pop(); // pop subcrate
if is_crate_present {
paths.pop(); // pop crate
}
paths.pop(); // pop branch name
seps.iter().for_each(|_| {
paths.pop();
}); // pop separators
Some(subcrate)
}
}
}
/// Target specific data required to fetch a package
#[derive(Clone, Debug)]
pub struct TargetData<T: leon::Values + ?Sized> {
pub target: String,
pub meta: PkgMeta,
/// More target related info, it's recommend to provide the following keys:
/// - target_family,
/// - target_arch
/// - target_libc
/// - target_vendor
pub target_related_info: T,
}
pub type TargetDataErased = TargetData<dyn leon::Values + Send + Sync + 'static>;
#[cfg(test)]
mod test {
use super::*;
#[test]
fn test_detect_subcrate_github() {
// cargo-audit
let urls = [
"https://github.com/RustSec/rustsec/tree/main/cargo-audit",
"https://github.com/RustSec/rustsec/tree/master/cargo-audit",
];
for url in urls {
let mut repo = Url::parse(url).unwrap();
let repository_host = RepositoryHost::guess_git_hosting_services(&repo);
assert_eq!(repository_host, RepositoryHost::GitHub);
let subcrate_prefix = RepoInfo::detect_subcrate(&mut repo, repository_host).unwrap();
assert_eq!(subcrate_prefix, "cargo-audit");
assert_eq!(
repo,
Url::parse("https://github.com/RustSec/rustsec").unwrap()
);
}
// wasm-bindgen-cli
let urls = [
"https://github.com/rustwasm/wasm-bindgen/tree/main/crates/cli",
"https://github.com/rustwasm/wasm-bindgen/tree/master/crates/cli",
];
for url in urls {
let mut repo = Url::parse(url).unwrap();
let repository_host = RepositoryHost::guess_git_hosting_services(&repo);
assert_eq!(repository_host, RepositoryHost::GitHub);
let subcrate_prefix = RepoInfo::detect_subcrate(&mut repo, repository_host).unwrap();
assert_eq!(subcrate_prefix, "cli");
assert_eq!(
repo,
Url::parse("https://github.com/rustwasm/wasm-bindgen").unwrap()
);
}
}
#[test]
fn test_detect_subcrate_gitlab() {
let urls = [
"https://gitlab.kitware.com/NobodyXu/hello/-/blob/main/cargo-binstall",
"https://gitlab.kitware.com/NobodyXu/hello/-/blob/master/cargo-binstall",
];
for url in urls {
let mut repo = Url::parse(url).unwrap();
let repository_host = RepositoryHost::guess_git_hosting_services(&repo);
assert_eq!(repository_host, RepositoryHost::GitLab);
let subcrate_prefix = RepoInfo::detect_subcrate(&mut repo, repository_host).unwrap();
assert_eq!(subcrate_prefix, "cargo-binstall");
assert_eq!(
repo,
Url::parse("https://gitlab.kitware.com/NobodyXu/hello").unwrap()
);
}
}
}

242
crates/binstalk-fetchers/src/quickinstall.rs Normal file
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use std::{path::Path, sync::Arc};
use binstalk_types::cargo_toml_binstall::{PkgFmt, PkgMeta};
use tokio::sync::OnceCell;
use url::Url;
use crate::{common::*, Data, FetchError, TargetDataErased};
const BASE_URL: &str = "https://github.com/cargo-bins/cargo-quickinstall/releases/download";
const STATS_URL: &str = "https://warehouse-clerk-tmp.vercel.app/api/crate";
const QUICKINSTALL_SUPPORTED_TARGETS_URL: &str =
"https://raw.githubusercontent.com/cargo-bins/cargo-quickinstall/main/supported-targets";
fn is_universal_macos(target: &str) -> bool {
["universal-apple-darwin", "universal2-apple-darwin"].contains(&target)
}
async fn get_quickinstall_supported_targets(
client: &Client,
) -> Result<&'static [CompactString], FetchError> {
static SUPPORTED_TARGETS: OnceCell<Box<[CompactString]>> = OnceCell::const_new();
SUPPORTED_TARGETS
.get_or_try_init(|| async {
let bytes = client
.get(Url::parse(QUICKINSTALL_SUPPORTED_TARGETS_URL)?)
.send(true)
.await?
.bytes()
.await?;
let mut v: Vec<CompactString> = String::from_utf8_lossy(&bytes)
.split_whitespace()
.map(CompactString::new)
.collect();
v.sort_unstable();
v.dedup();
Ok(v.into())
})
.await
.map(Box::as_ref)
}
pub struct QuickInstall {
client: Client,
gh_api_client: GhApiClient,
is_supported_v: OnceCell<bool>,
package: String,
package_url: Url,
stats_url: Url,
target_data: Arc<TargetDataErased>,
}
impl QuickInstall {
async fn is_supported(&self) -> Result<bool, FetchError> {
self.is_supported_v
.get_or_try_init(|| async {
Ok(get_quickinstall_supported_targets(&self.client)
.await?
.binary_search(&CompactString::new(&self.target_data.target))
.is_ok())
})
.await
.copied()
}
}
#[async_trait::async_trait]
impl super::Fetcher for QuickInstall {
fn new(
client: Client,
gh_api_client: GhApiClient,
data: Arc<Data>,
target_data: Arc<TargetDataErased>,
) -> Arc<dyn super::Fetcher> {
let crate_name = &data.name;
let version = &data.version;
let target = &target_data.target;
let package = format!("{crate_name}-{version}-{target}");
Arc::new(Self {
client,
gh_api_client,
is_supported_v: OnceCell::new(),
package_url: Url::parse(&format!(
"{BASE_URL}/{crate_name}-{version}/{package}.tar.gz",
))
.expect("package_url is pre-generated and should never be invalid url"),
stats_url: Url::parse(&format!("{STATS_URL}/{package}.tar.gz",))
.expect("stats_url is pre-generated and should never be invalid url"),
package,
target_data,
})
}
fn find(self: Arc<Self>) -> JoinHandle<Result<bool, FetchError>> {
tokio::spawn(async move {
if !self.is_supported().await? {
return Ok(false);
}
does_url_exist(
self.client.clone(),
self.gh_api_client.clone(),
&self.package_url,
)
.await
})
}
fn report_to_upstream(self: Arc<Self>) {
if cfg!(debug_assertions) {
debug!("Not sending quickinstall report in debug mode");
} else if is_universal_macos(&self.target_data.target) {
debug!(
r#"Not sending quickinstall report for universal-apple-darwin
and universal2-apple-darwin.
Quickinstall does not support these targets, it only supports targets supported
by rust officially."#,
);
} else if self.is_supported_v.get().copied() != Some(false) {
tokio::spawn(async move {
if let Err(err) = self.report().await {
warn!(
"Failed to send quickinstall report for package {}: {err}",
self.package
)
}
});
}
}
async fn fetch_and_extract(&self, dst: &Path) -> Result<ExtractedFiles, FetchError> {
let url = &self.package_url;
debug!("Downloading package from: '{url}'");
Ok(Download::new(self.client.clone(), url.clone())
.and_extract(self.pkg_fmt(), dst)
.await?)
}
fn pkg_fmt(&self) -> PkgFmt {
PkgFmt::Tgz
}
fn target_meta(&self) -> PkgMeta {
let mut meta = self.target_data.meta.clone();
meta.pkg_fmt = Some(self.pkg_fmt());
meta.bin_dir = Some("{ bin }{ binary-ext }".to_string());
meta
}
fn source_name(&self) -> CompactString {
CompactString::from("QuickInstall")
}
fn fetcher_name(&self) -> &'static str {
"QuickInstall"
}
fn is_third_party(&self) -> bool {
true
}
fn target(&self) -> &str {
&self.target_data.target
}
fn target_data(&self) -> &Arc<TargetDataErased> {
&self.target_data
}
}
impl QuickInstall {
pub async fn report(&self) -> Result<(), FetchError> {
if !self.is_supported().await? {
debug!(
"Not sending quickinstall report for {} since Quickinstall does not support these targets.",
self.target_data.target
);
return Ok(());
}
let url = self.stats_url.clone();
debug!("Sending installation report to quickinstall ({url})");
self.client.request(Method::HEAD, url).send(true).await?;
Ok(())
}
}
#[cfg(test)]
mod test {
use super::{get_quickinstall_supported_targets, Client, CompactString};
use std::num::NonZeroU16;
/// Mark this as an async fn so that you won't accidentally use it in
/// sync context.
async fn create_client() -> Client {
Client::new(
concat!(env!("CARGO_PKG_NAME"), "/", env!("CARGO_PKG_VERSION")),
None,
NonZeroU16::new(10).unwrap(),
1.try_into().unwrap(),
[],
)
.unwrap()
}
#[tokio::test]
async fn test_get_quickinstall_supported_targets() {
let supported_targets = get_quickinstall_supported_targets(&create_client().await)
.await
.unwrap();
[
"x86_64-pc-windows-msvc",
"x86_64-apple-darwin",
"aarch64-apple-darwin",
"x86_64-unknown-linux-gnu",
"x86_64-unknown-linux-musl",
"aarch64-unknown-linux-gnu",
"aarch64-unknown-linux-musl",
"aarch64-pc-windows-msvc",
"armv7-unknown-linux-musleabihf",
"armv7-unknown-linux-gnueabihf",
]
.into_iter()
.for_each(|known_supported_target| {
supported_targets
.binary_search(&CompactString::new(known_supported_target))
.unwrap();
});
}
}