( )⚙ D10101 rhg: Fall back to Python on --repository with an URL

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Differential D10101

rhg: Fall back to Python on --repository with an URL
ClosedPublic

Authored by SimonSapin on Mar 3 2021, 1:24 PM.

Details

Reviewers
marmoute
Group Reviewers
hg-reviewers
Commits
rHG6cd9f53aaed8: rhg: Fall back to Python on --repository with an URL
Summary

A low-hanging fruit to improve on this would be to properly parse
and handle file: URLs. But other Python-based hg supports
some other URL schemes for features that rhg does not support yet.

Diff Detail

Repository
rHG Mercurial
Lint
Automatic diff as part of commit; lint not applicable.
Unit
Automatic diff as part of commit; unit tests not applicable.

Event Timeline

SimonSapin created this revision.Mar 3 2021, 1:24 PM
baymax updated this revision to Diff 26075.Mar 4 2021, 8:00 AM

✅ refresh by Heptapod after a successful CI run (🐙 💚)

Alphare added a subscriber: Alphare.Mar 5 2021, 4:00 AM

Maybe I'm trying too hard, but is looking for : in the repo bytes too wide to detect an URL? I know actual URL parsing is out of the question right now, but maybe we can do a little bit more since : is allowed in filenames on many platforms. What do you think?

SimonSapin updated this revision to Diff 26168.Mar 9 2021, 4:39 AM
SimonSapin added a comment.Mar 9 2021, 8:04 AM

I’ve switched to using a regex that the Python code uses to find an URL’s "scheme".

baymax updated this revision to Diff 26186.Mar 9 2021, 8:39 AM

✅ refresh by Heptapod after a successful CI run (🐙 💚)

marmoute accepted this revision.Mar 9 2021, 1:06 PM
SimonSapin edited the summary of this revision. (Show Details)Mar 12 2021, 5:06 PM
SimonSapin updated this revision to Diff 26288.
SimonSapin added a commit: rHG6cd9f53aaed8: rhg: Fall back to Python on --repository with an URL.Mar 16 2021, 5:44 PM
This revision was not accepted when it landed; it landed in state Needs Review.
Closed by commit rHG6cd9f53aaed8: rhg: Fall back to Python on --repository with an URL (authored by SimonSapin). · Explain Why
This revision was automatically updated to reflect the committed changes.

Revision Contents
Changeset List

PathPackages
Mrust/Cargo.lock (2 lines)
Mrust/rhg/Cargo.toml (2 lines)
Mrust/rhg/src/main.rs (19 lines)

Diff 26410

rust/Cargo.lock

version = "0.1.0" version = "0.1.0"
dependencies = [ dependencies = [
"chrono", "chrono",
"clap", "clap",
"derive_more", "derive_more",
"env_logger", "env_logger",
"format-bytes", "format-bytes",
"hg-core", "hg-core",
"lazy_static",
"log", "log",
"micro-timer", "micro-timer",
"regex",
"users", "users",
] ]
[[package]] [[package]]
name = "rust-crypto" name = "rust-crypto"
version = "0.2.36" version = "0.2.36"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f76d05d3993fd5f4af9434e8e436db163a12a9d40e1a58a726f27a01dfd12a2a" checksum = "f76d05d3993fd5f4af9434e8e436db163a12a9d40e1a58a726f27a01dfd12a2a"

rust/rhg/Cargo.toml

[package] [package]
name = "rhg" name = "rhg"
version = "0.1.0" version = "0.1.0"
authors = [ authors = [
"Antoine Cezar <antoine.cezar@octobus.net>", "Antoine Cezar <antoine.cezar@octobus.net>",
"Raphaël Gomès <raphael.gomes@octobus.net>", "Raphaël Gomès <raphael.gomes@octobus.net>",
] ]
edition = "2018" edition = "2018"
[dependencies] [dependencies]
hg-core = { path = "../hg-core"} hg-core = { path = "../hg-core"}
chrono = "0.4.19" chrono = "0.4.19"
clap = "2.33.1" clap = "2.33.1"
derive_more = "0.99" derive_more = "0.99"
lazy_static = "1.4.0"
log = "0.4.11" log = "0.4.11"
micro-timer = "0.3.1" micro-timer = "0.3.1"
regex = "1.3.9"
env_logger = "0.7.1" env_logger = "0.7.1"
format-bytes = "0.2.0" format-bytes = "0.2.0"
users = "0.11.0" users = "0.11.0"

rust/rhg/src/main.rs

// Normally this is decided based on config, but we don’t have that // Normally this is decided based on config, but we don’t have that
// available. As of this writing config loading never returns an // available. As of this writing config loading never returns an
// "unsupported" error but that is not enforced by the type system. // "unsupported" error but that is not enforced by the type system.
let on_unsupported = OnUnsupported::Abort; let on_unsupported = OnUnsupported::Abort;
exit(&ui, on_unsupported, Err(error.into())) exit(&ui, on_unsupported, Err(error.into()))
}); });
if let Some(repo_path_bytes) = &early_args.repo {
lazy_static::lazy_static! {
static ref SCHEME_RE: regex::bytes::Regex =
// Same as `_matchscheme` in `mercurial/util.py`
regex::bytes::Regex::new("^[a-zA-Z0-9+.\\-]+:").unwrap();
}
if SCHEME_RE.is_match(&repo_path_bytes) {
exit(
&ui,
OnUnsupported::from_config(&non_repo_config),
Err(CommandError::UnsupportedFeature {
message: format_bytes!(
b"URL-like --repository {}",
repo_path_bytes
),
}),
)
}
}
let repo_path = early_args.repo.as_deref().map(get_path_from_bytes); let repo_path = early_args.repo.as_deref().map(get_path_from_bytes);
let repo_result = match Repo::find(&non_repo_config, repo_path) { let repo_result = match Repo::find(&non_repo_config, repo_path) {
Ok(repo) => Ok(repo), Ok(repo) => Ok(repo),
Err(RepoError::NotFound { at }) if repo_path.is_none() => { Err(RepoError::NotFound { at }) if repo_path.is_none() => {
// Not finding a repo is not fatal yet, if `-R` was not given // Not finding a repo is not fatal yet, if `-R` was not given
Err(NoRepoInCwdError { cwd: at }) Err(NoRepoInCwdError { cwd: at })
} }
Err(error) => exit( Err(error) => exit(