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// SPDX-License-Identifier: AGPL-3.0-or-later WITH GPL-3.0-linking-exception
// SPDX-FileCopyrightText: 2021 Alyssa Ross <hi@alyssa.is>
// SPDX-FileCopyrightText: 2022 Arnout Engelen <arnout@bzzt.net>
use std::borrow::Cow;
use std::collections::BTreeMap;
use once_cell::sync::Lazy;
use regex::{Regex, RegexSet};
const NEXT_BRANCH_TABLE: [(&str, &str); 10] = [
(r"\Astaging\z", "staging-next"),
(r"\Astaging-next\z", "master"),
(r"\Astaging-next-([\d.]+)\z", "release-$1"),
(r"\Amaster\z", "nixpkgs-unstable"),
(r"\Amaster\z", "nixos-unstable-small"),
(r"\Anixos-(.*)-small\z", "nixos-$1"),
(r"\Arelease-([\d.]+)\z", "nixpkgs-$1-darwin"),
(r"\Arelease-([\d.]+)\z", "nixos-$1-small"),
(r"\Astaging-((1.|20)\.\d{2})\z", "release-$1"),
(r"\Astaging-((2[1-9]|[3-90].)\.\d{2})\z", "staging-next-$1"),
];
static BRANCH_NEXTS: Lazy<BTreeMap<&str, Vec<&str>>> = Lazy::new(|| {
NEXT_BRANCH_TABLE
.iter()
.fold(BTreeMap::new(), |mut map, (pattern, next)| {
map.entry(pattern).or_insert_with(Vec::new).push(next);
map
})
});
static BRANCH_NEXTS_BY_INDEX: Lazy<Vec<&Vec<&str>>> = Lazy::new(|| BRANCH_NEXTS.values().collect());
static BRANCH_PATTERNS: Lazy<Vec<Regex>> = Lazy::new(|| {
BRANCH_NEXTS
.keys()
.copied()
.map(Regex::new)
.map(Result::unwrap)
.collect()
});
static BRANCH_REGEXES: Lazy<RegexSet> = Lazy::new(|| RegexSet::new(BRANCH_NEXTS.keys()).unwrap());
pub fn next_branches(branch: &str) -> Vec<Cow<str>> {
BRANCH_REGEXES
.matches(branch)
.iter()
.flat_map(|index| {
let regex = BRANCH_PATTERNS.get(index).unwrap();
BRANCH_NEXTS_BY_INDEX
.get(index)
.unwrap()
.iter()
.map(move |next| regex.replace(branch, *next))
})
.collect()
}
const BRANCH_HYDRA_LINK_TABLE: [(&str, &str); 4] = [
(r"\Anixpkgs-unstable\z", "nixpkgs/trunk/unstable"),
(r"\Anixos-unstable-small\z", "nixos/unstable-small/tested"),
(r"\Anixos-unstable\z", "nixos/trunk-combined/tested"),
(r"\Anixos-(\d.*)\z", "nixos/release-$1/tested"),
];
static BRANCH_HYDRA_LINK_PATTERNS: Lazy<Vec<Regex>> = Lazy::new(|| {
BRANCH_HYDRA_LINKS
.keys()
.copied()
.map(Regex::new)
.map(Result::unwrap)
.collect()
});
static BRANCH_HYDRA_LINKS: Lazy<BTreeMap<&str, &str>> = Lazy::new(|| {
BRANCH_HYDRA_LINK_TABLE
.iter()
.fold(BTreeMap::new(), |mut map, (pattern, next)| {
// TODO throw an error when this does not return None?
map.insert(pattern, next);
map
})
});
static BRANCH_HYDRA_LINKS_BY_INDEX: Lazy<Vec<&str>> =
Lazy::new(|| BRANCH_HYDRA_LINKS.values().cloned().collect());
static BRANCH_HYDRA_LINK_REGEXES: Lazy<RegexSet> =
Lazy::new(|| RegexSet::new(BRANCH_HYDRA_LINKS.keys()).unwrap());
pub fn branch_hydra_link(branch: &str) -> Option<String> {
BRANCH_HYDRA_LINK_REGEXES
.matches(branch)
.iter()
.next()
.map(|index| {
let regex = BRANCH_HYDRA_LINK_PATTERNS.get(index).unwrap();
BRANCH_HYDRA_LINKS_BY_INDEX
.get(index)
.map(move |link| regex.replace(branch, *link))
.map(move |l| format!("https://hydra.nixos.org/job/{}#tabs-constituents", l))
})
.flatten()
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn staging_18_03() {
let branch = "staging-18.03";
let next = next_branches(branch);
assert_eq!(next, vec!["release-18.03"]);
let link = branch_hydra_link(branch);
assert_eq!(link, None);
}
#[test]
fn staging_20_09() {
let res = next_branches("staging-20.09");
assert_eq!(res, vec!["release-20.09"]);
}
#[test]
fn staging_21_05() {
let res = next_branches("staging-21.05");
assert_eq!(res, vec!["staging-next-21.05"]);
}
#[test]
fn staging_30_05() {
let res = next_branches("staging-30.05");
assert_eq!(res, vec!["staging-next-30.05"]);
}
#[test]
fn staging_00_11() {
let res = next_branches("staging-00.11");
assert_eq!(res, vec!["staging-next-00.11"]);
}
#[test]
fn staging_next_21_05() {
let res = next_branches("staging-next-21.05");
assert_eq!(res, vec!["release-21.05"]);
}
#[test]
fn release_20_09() {
let res = next_branches("release-20.09");
assert_eq!(res, vec!["nixpkgs-20.09-darwin", "nixos-20.09-small"]);
}
#[test]
fn nixpkgs_unstable() {
let branch = "nixpkgs-unstable";
let next = next_branches(branch);
assert!(next.is_empty());
let link = branch_hydra_link(branch);
let expected = "https://hydra.nixos.org/job/nixpkgs/trunk/unstable#tabs-constituents";
assert_eq!(link.unwrap(), expected);
}
#[test]
fn nixos_unstable_small() {
let branch = "nixos-unstable-small";
let next = next_branches(branch);
assert_eq!(next, vec!["nixos-unstable"]);
let link = branch_hydra_link(branch);
let expected = "https://hydra.nixos.org/job/nixos/unstable-small/tested#tabs-constituents";
assert_eq!(link.unwrap(), expected);
}
#[test]
fn nixos_unstable() {
let branch = "nixos-unstable";
let next = next_branches(branch);
assert_eq!(next.len(), 0);
let link = branch_hydra_link(branch);
let expected = "https://hydra.nixos.org/job/nixos/trunk-combined/tested#tabs-constituents";
assert_eq!(link.unwrap(), expected);
}
}
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