add support for perfile checksum files

Author: passcod

generator/src/config.rs

@@ -20,6 +20,8 @@ pub struct Config {
 	pub triples: IndexMap<Glob, Cat>,
 	pub formats: IndexMap<Glob, Format>,
 	pub checksums: HashMap<SumAlgo, ChecksumDetail>,
+	#[serde(default)]
+	pub perfile_checksums: IndexMap<Glob, SumAlgo>,
 	pub maintainers: Vec<Maintainer>,
 }
 
@@ -358,6 +360,13 @@ impl Config {
 		Ok(app)
 	}
 
+	pub fn match_perfile_checksum(&self, filename: &str) -> Option<(SumAlgo, &str)> {
+		self.perfile_checksums
+			.iter()
+			.find(|(glob, _)| glob.compile_matcher().is_match(filename))
+			.map(|(glob, algo)| (*algo, glob.glob().trim_start_matches('*')))
+	}
+
 	pub fn match_format(&self, filename: &str) -> Result<&Format> {
 		self.formats
 			.iter()

generator/src/main.rs

@@ -156,6 +156,7 @@ async fn main() -> Result<()> {
 			context.try_insert("genver", &env!("CARGO_PKG_VERSION"))?;
 			context.try_insert("meta", &meta)?;
 			context.try_insert("tag", &app.tag(&meta.version)?)?;
+			context.try_insert("has_checksum_files", &meta.downloads.iter().any(|d| !d.checksum_files.is_empty()))?;
 			let page = tera.render("release.md", &context)?;
 
 			let dirpath = app.dir(&meta.version);

generator/src/meta.rs

@@ -56,6 +56,14 @@ pub struct Download {
 	pub format: Format,
 	pub sums: Vec<DownloadSum>,
 	pub cats: (String, String, Option<String>),
+	#[serde(default)]
+	pub checksum_files: Vec<DownloadChecksumFile>,
+}
+
+#[derive(Clone, Debug, Deserialize, Serialize, PartialEq, Eq, PartialOrd, Ord, Hash)]
+pub struct DownloadChecksumFile {
+	pub algo: SumAlgo,
+	pub url: Url,
 }
 
 #[derive(Clone, Debug, Deserialize, Serialize, PartialEq, Eq, PartialOrd, Ord, Hash)]
@@ -95,6 +103,7 @@ impl Download {
 			format: config.match_format(&filename)?.clone(),
 			sums: Vec::new(),
 			cats: (os, arch, variant),
+			checksum_files: Vec::new(),
 		})
 	}
 }

generator/src/release.rs

@@ -11,7 +11,7 @@ use semver::Version;
 use url::Url;
 
 use crate::config::{App, Config, SumAlgo};
-use crate::meta::{Download, DownloadSum, Meta, Sign, SignedSum};
+use crate::meta::{Download, DownloadChecksumFile, DownloadSum, Meta, Sign, SignedSum};
 
 pub async fn get_meta(config: Config, app: App, version: Version) -> Result<Meta> {
 	let release = octocrab::instance()
@@ -22,6 +22,7 @@ pub async fn get_meta(config: Config, app: App, version: Version) -> Result<Meta
 
 	let mut downloads = Vec::new();
 	let mut sums = Vec::new();
+	let mut perfile_checksum_assets: Vec<(_, url::Url, String)> = Vec::new();
 	'assets: for asset in &release.assets {
 		let url = &asset.browser_download_url;
 		let filename = url
@@ -36,6 +37,13 @@ pub async fn get_meta(config: Config, app: App, version: Version) -> Result<Meta
 			}
 		}
 
+		if let Some((algo, suffix)) = config.match_perfile_checksum(filename) {
+			if let Some(base) = filename.strip_suffix(suffix) {
+				perfile_checksum_assets.push((algo, url.clone(), base.to_string()));
+			}
+			continue 'assets;
+		}
+
 		match Download::new(&config, url, filename, asset.size.try_into()?) {
 			Ok(dl) => downloads.push(dl),
 			Err(err) => eprintln!("warning: {}", err),
@@ -75,6 +83,17 @@ pub async fn get_meta(config: Config, app: App, version: Version) -> Result<Meta
 		})
 		.finish();
 
+	for (algo, url, base) in perfile_checksum_assets {
+		for dl in &mut downloads {
+			if dl.filename == base {
+				dl.checksum_files.push(DownloadChecksumFile { algo, url: url.clone() });
+			}
+		}
+	}
+	for dl in &mut downloads {
+		dl.checksum_files.sort();
+	}
+
 	let http = HttpClientBuilder::new()
 		.redirect_policy(RedirectPolicy::Follow)
 		.build()?;

generator/templates/release.md

@@ -6,7 +6,7 @@
 
 ## Packages
 
-{{ tables::downloads(downloads=meta.downloads, sums=[]) }}
+{{ tables::downloads(downloads=meta.downloads, sums=[], has_checksum_files=has_checksum_files) }}
 
 View release [on GitHub](https://github.com/{{ app.repo.owner }}/{{ app.repo.repo }}/releases/{{ tag }}).
 

generator/templates/tables.md.j2

@@ -6,7 +6,7 @@
 {%- endif -%}
 {% endmacro notes %}
 
-{% macro downloads(downloads, sums) %}
+{% macro downloads(downloads, sums, has_checksum_files=false) %}
 {%- set has_sums = 0 < sums | length -%}
 <table class="downloads">
 <thead>
@@ -16,6 +16,7 @@
 <th>Variant</th>
 <th>Download</th>
 {% if has_sums %}<th>BLAKE3 checksum</th>{% endif %}
+{% if has_checksum_files %}<th>Checksums</th>{% endif %}
 </tr>
 </thead>
 <tbody>
@@ -44,6 +45,11 @@
 							{%- else -%}
 <em class="missing-checksum">missing checksum</em>
 							{%- endif -%}
+</td>{% endif %}
+						{% if has_checksum_files %}<td>
+							{%- for cf in dl.checksum_files -%}
+<small><a href="{{ cf.url }}">{{ cf.algo }}</a></small>{% if not loop.last %} {% endif %}
+							{%- endfor -%}
 </td>{% endif %}
 </tr>
 					{% endfor %}

generators.yml

@@ -101,6 +101,11 @@ checksums:
     tool: sha512sum
     url: https://en.wikipedia.org/wiki/SHA-2
 
+perfile_checksums:
+  "*.b3": BLAKE3
+  "*.sha256": SHA256
+  "*.sha512": SHA512
+
 maintainers:
   - username: passcod
     name: Félix