feat(tvix/store): From<&nix_compat::...::NarInfo<'_>> for PathInfo r/7029

This allows converting from the NarInfo falling out of the NarInfo
parser (which is a bit annoying to handle due to lifetimes) to the
PathInfo proto struct.

The narinfo field, containing most of the data from the original
NARInfo file, as well as the references (bytes) are populated.
The node field is not populated, because it requires ingesting the NAR
itself to describe the root node.

Change-Id: I9c04dd6ad4cae556b455188a4255e34b4f6443c5
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10067
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>

1 files changed, 110 insertions, 1 deletions

diff --git a/tvix/store/src/proto/tests/pathinfo.rs b/tvix/store/src/proto/tests/pathinfo.rs
index c296512f66cd..31f4790b73ee 100644
--- a/tvix/store/src/proto/tests/pathinfo.rs
+++ b/tvix/store/src/proto/tests/pathinfo.rs
@@ -1,6 +1,8 @@
-use crate::proto::{PathInfo, ValidatePathInfoError};
+use crate::proto::{nar_info::Signature, NarInfo, PathInfo, ValidatePathInfoError};
 use crate::tests::fixtures::*;
 use bytes::Bytes;
+use data_encoding::BASE64;
+use nix_compat::nixbase32;
 use nix_compat::store_path::{self, StorePath};
 use std::str::FromStr;
 use test_case::test_case;
@@ -295,3 +297,110 @@ fn validate_invalid_deriver() {
         e => panic!("unexpected error: {:?}", e),
     }
 }
+
+#[test]
+fn from_nixcompat_narinfo() {
+    let narinfo_parsed = nix_compat::narinfo::NarInfo::parse(
+        r#"StorePath: /nix/store/s66mzxpvicwk07gjbjfw9izjfa797vsw-hello-2.12.1
+URL: nar/1nhgq6wcggx0plpy4991h3ginj6hipsdslv4fd4zml1n707j26yq.nar.xz
+Compression: xz
+FileHash: sha256:1nhgq6wcggx0plpy4991h3ginj6hipsdslv4fd4zml1n707j26yq
+FileSize: 50088
+NarHash: sha256:0yzhigwjl6bws649vcs2asa4lbs8hg93hyix187gc7s7a74w5h80
+NarSize: 226488
+References: 3n58xw4373jp0ljirf06d8077j15pc4j-glibc-2.37-8 s66mzxpvicwk07gjbjfw9izjfa797vsw-hello-2.12.1
+Deriver: ib3sh3pcz10wsmavxvkdbayhqivbghlq-hello-2.12.1.drv
+Sig: cache.nixos.org-1:8ijECciSFzWHwwGVOIVYdp2fOIOJAfmzGHPQVwpktfTQJF6kMPPDre7UtFw3o+VqenC5P8RikKOAAfN7CvPEAg=="#).expect("must parse");
+
+    assert_eq!(
+        PathInfo {
+            node: None,
+            references: vec![
+                Bytes::copy_from_slice(&nixbase32::decode_fixed::<20>("3n58xw4373jp0ljirf06d8077j15pc4j").unwrap()),
+                Bytes::copy_from_slice(&nixbase32::decode_fixed::<20>("s66mzxpvicwk07gjbjfw9izjfa797vsw").unwrap()),
+            ],
+            narinfo: Some(
+                NarInfo {
+                    nar_size: 226488,
+                    nar_sha256: Bytes::copy_from_slice(
+                        &nixbase32::decode_fixed::<32>("0yzhigwjl6bws649vcs2asa4lbs8hg93hyix187gc7s7a74w5h80".as_bytes())
+                            .unwrap()
+                    ),
+                    signatures: vec![Signature {
+                        name: "cache.nixos.org-1".to_string(),
+                        data: BASE64.decode("8ijECciSFzWHwwGVOIVYdp2fOIOJAfmzGHPQVwpktfTQJF6kMPPDre7UtFw3o+VqenC5P8RikKOAAfN7CvPEAg==".as_bytes()).unwrap().into(),
+                    }],
+                    reference_names: vec![
+                        "3n58xw4373jp0ljirf06d8077j15pc4j-glibc-2.37-8".to_string(),
+                        "s66mzxpvicwk07gjbjfw9izjfa797vsw-hello-2.12.1".to_string()
+                    ],
+                    deriver: Some(crate::proto::StorePath {
+                        digest: Bytes::copy_from_slice(&nixbase32::decode_fixed::<20>("ib3sh3pcz10wsmavxvkdbayhqivbghlq").unwrap()),
+                        name: "hello-2.12.1".to_string(),
+                     }),
+                    ca: None,
+                }
+            )
+        },
+        (&narinfo_parsed).into(),
+    );
+}
+
+#[test]
+fn from_nixcompat_narinfo_fod() {
+    let narinfo_parsed = nix_compat::narinfo::NarInfo::parse(
+        r#"StorePath: /nix/store/pa10z4ngm0g83kx9mssrqzz30s84vq7k-hello-2.12.1.tar.gz
+URL: nar/1zjrhzhaizsrlsvdkqfl073vivmxcqnzkff4s50i0cdf541ary1r.nar.xz
+Compression: xz
+FileHash: sha256:1zjrhzhaizsrlsvdkqfl073vivmxcqnzkff4s50i0cdf541ary1r
+FileSize: 1033524
+NarHash: sha256:1lvqpbk2k1sb39z8jfxixf7p7v8sj4z6mmpa44nnmff3w1y6h8lh
+NarSize: 1033416
+References: 
+Deriver: dyivpmlaq2km6c11i0s6bi6mbsx0ylqf-hello-2.12.1.tar.gz.drv
+Sig: cache.nixos.org-1:ywnIG629nQZQhEr6/HLDrLT/mUEp5J1LC6NmWSlJRWL/nM7oGItJQUYWGLvYGhSQvHrhIuvMpjNmBNh/WWqCDg==
+CA: fixed:sha256:086vqwk2wl8zfs47sq2xpjc9k066ilmb8z6dn0q6ymwjzlm196cd"#
+    ).expect("must parse");
+
+    assert_eq!(
+        PathInfo {
+            node: None,
+            references: vec![],
+            narinfo: Some(
+                NarInfo {
+                    nar_size: 1033416,
+                    nar_sha256: Bytes::copy_from_slice(
+                        &nixbase32::decode_fixed::<32>(
+                            "1lvqpbk2k1sb39z8jfxixf7p7v8sj4z6mmpa44nnmff3w1y6h8lh"
+                        )
+                        .unwrap()
+                    ),
+                    signatures: vec![Signature {
+                        name: "cache.nixos.org-1".to_string(),
+                        data: BASE64
+                            .decode("ywnIG629nQZQhEr6/HLDrLT/mUEp5J1LC6NmWSlJRWL/nM7oGItJQUYWGLvYGhSQvHrhIuvMpjNmBNh/WWqCDg==".as_bytes())
+                            .unwrap()
+                            .into(),
+                    }],
+                    reference_names: vec![],
+                    deriver: Some(crate::proto::StorePath {
+                        digest: Bytes::copy_from_slice(
+                            &nixbase32::decode_fixed::<20>("dyivpmlaq2km6c11i0s6bi6mbsx0ylqf").unwrap()
+                        ),
+                        name: "hello-2.12.1.tar.gz".to_string(),
+                    }),
+                    ca: Some(crate::proto::nar_info::Ca {
+                        r#type: crate::proto::nar_info::ca::Hash::FlatSha256.into(),
+                        digest: Bytes::copy_from_slice(
+                            &nixbase32::decode_fixed::<32>(
+                                "086vqwk2wl8zfs47sq2xpjc9k066ilmb8z6dn0q6ymwjzlm196cd"
+                            )
+                            .unwrap()
+                        )
+                    }),
+                }
+            ),
+        },
+        (&narinfo_parsed).into()
+    );
+}