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Support cosign

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Taiki Endo
2026-04-08 00:10:16 +09:00
parent fbe29f7fa6
commit 0486bdd90e
6 changed files with 335 additions and 6 deletions
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34
tools/codegen/base/cosign.json Normal file
View File

@@ -0,0 +1,34 @@
{
"repository": "https://github.com/sigstore/cosign",
"tag_prefix": "v",
"version_range": ">= 3.0.0",
"signing": {
"kind": "custom"
},
"platform": {
"x86_64_linux_musl": {
"asset_name": "${package}-linux-amd64"
},
"x86_64_macos": {
"asset_name": "${package}-darwin-amd64"
},
"x86_64_windows": {
"asset_name": "${package}-windows-amd64.exe"
},
"aarch64_linux_musl": {
"asset_name": "${package}-linux-arm64"
},
"aarch64_macos": {
"asset_name": "${package}-darwin-arm64"
},
"powerpc64le_linux_musl": {
"asset_name": "${package}-linux-ppc64le"
},
"riscv64_linux_musl": {
"asset_name": "${package}-linux-riscv64"
},
"s390x_linux_musl": {
"asset_name": "${package}-linux-s390x"
}
}
}

57
tools/codegen/src/main.rs
View File

@@ -385,6 +385,58 @@ fn main() {
);
eprintln!("done");
}
"cosign" => {
let [checksum, bundle] =
["cosign_checksums.txt", "cosign_checksums.txt.sigstore.json"].map(
|f| {
let asset = release
.assets
.iter()
.find(|asset| asset.name.ends_with(f))
.unwrap();
let download_cache =
download_cache_dir.join(format!("{version}-{f}"));
let url = &asset.browser_download_url;
eprint!(
"downloading {url} for signature verification ... "
);
if download_cache.is_file() {
eprintln!("already downloaded");
} else {
download_to_buf(url, &mut buf);
eprintln!("download complete");
fs::write(&download_cache, &buf).unwrap();
buf.clear();
}
download_cache
},
);
eprint!("verifying checksum file for {package}@{version} ... ");
cmd!(
"cosign",
"verify-blob",
&checksum,
"--bundle",
bundle,
"--certificate-identity",
"keyless@projectsigstore.iam.gserviceaccount.com",
"--certificate-oidc-issuer",
"https://accounts.google.com"
)
.run()
.unwrap();
verified_checksum = Some(
fs::read_to_string(checksum)
.unwrap()
.lines()
.filter_map(|l| l.split_once(" "))
.map(|(h, f)| {
(f.trim_ascii().to_owned(), h.trim_ascii().to_owned())
})
.collect(),
);
eprintln!("done");
}
"syft" => {
// Refs: https://oss.anchore.com/docs/installation/verification/
let [checksum, certificate, signature] =
@@ -572,10 +624,7 @@ fn main() {
);
};
let url = url.clone() + ".sig";
let sig_download_cache = &download_cache.with_extension(format!(
"{}.sig",
download_cache.extension().unwrap_or_default().to_str().unwrap()
));
let sig_download_cache = &download_cache.with_added_extension("sig");
eprint!("downloading {url} for signature validation ... ");
let sig = if sig_download_cache.is_file() {
eprintln!("already downloaded");