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-rw-r--r--tvix/Cargo.lock268
-rw-r--r--tvix/Cargo.nix885
-rw-r--r--tvix/Cargo.toml1
-rw-r--r--tvix/nar-bridge/Cargo.toml40
-rw-r--r--tvix/nar-bridge/default.nix11
-rw-r--r--tvix/nar-bridge/src/bin/nar-bridge.rs84
-rw-r--r--tvix/nar-bridge/src/lib.rs50
-rw-r--r--tvix/nar-bridge/src/nar.rs77
-rw-r--r--tvix/nar-bridge/src/narinfo.rs131
9 files changed, 1460 insertions, 87 deletions
diff --git a/tvix/Cargo.lock b/tvix/Cargo.lock
index 7939383353bb..9e58235fae35 100644
--- a/tvix/Cargo.lock
+++ b/tvix/Cargo.lock
@@ -310,13 +310,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3b829e4e32b91e643de6eafe82b1d90675f5874230191a4ffbc1b336dec4d6bf"
 dependencies = [
  "async-trait",
- "axum-core",
+ "axum-core 0.3.4",
  "bitflags 1.3.2",
  "bytes",
  "futures-util",
- "http",
- "http-body",
- "hyper",
+ "http 0.2.11",
+ "http-body 0.4.6",
+ "hyper 0.14.28",
  "itoa",
  "matchit",
  "memchr",
@@ -325,13 +325,47 @@ dependencies = [
  "pin-project-lite",
  "rustversion",
  "serde",
- "sync_wrapper",
+ "sync_wrapper 0.1.2",
  "tower",
  "tower-layer",
  "tower-service",
 ]
 
 [[package]]
+name = "axum"
+version = "0.7.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3a6c9af12842a67734c9a2e355436e5d03b22383ed60cf13cd0c18fbfe3dcbcf"
+dependencies = [
+ "async-trait",
+ "axum-core 0.4.3",
+ "bytes",
+ "futures-util",
+ "http 1.1.0",
+ "http-body 1.0.0",
+ "http-body-util",
+ "hyper 1.3.1",
+ "hyper-util",
+ "itoa",
+ "matchit",
+ "memchr",
+ "mime",
+ "percent-encoding",
+ "pin-project-lite",
+ "rustversion",
+ "serde",
+ "serde_json",
+ "serde_path_to_error",
+ "serde_urlencoded",
+ "sync_wrapper 1.0.1",
+ "tokio",
+ "tower",
+ "tower-layer",
+ "tower-service",
+ "tracing",
+]
+
+[[package]]
 name = "axum-core"
 version = "0.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -340,8 +374,8 @@ dependencies = [
  "async-trait",
  "bytes",
  "futures-util",
- "http",
- "http-body",
+ "http 0.2.11",
+ "http-body 0.4.6",
  "mime",
  "rustversion",
  "tower-layer",
@@ -349,6 +383,27 @@ dependencies = [
 ]
 
 [[package]]
+name = "axum-core"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a15c63fd72d41492dc4f497196f5da1fb04fb7529e631d73630d1b491e47a2e3"
+dependencies = [
+ "async-trait",
+ "bytes",
+ "futures-util",
+ "http 1.1.0",
+ "http-body 1.0.0",
+ "http-body-util",
+ "mime",
+ "pin-project-lite",
+ "rustversion",
+ "sync_wrapper 0.1.2",
+ "tower-layer",
+ "tower-service",
+ "tracing",
+]
+
+[[package]]
 name = "backtrace"
 version = "0.3.69"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -382,7 +437,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "12ccba0acd0a82afb2b1fe89181b0776ff18aef5e355030631fe534c8ae8ec73"
 dependencies = [
  "gcp_auth",
- "http",
+ "http 0.2.11",
  "log",
  "prost",
  "prost-build",
@@ -1388,7 +1443,7 @@ dependencies = [
  "base64",
  "chrono",
  "home",
- "hyper",
+ "hyper 0.14.28",
  "hyper-rustls",
  "ring",
  "rustls 0.21.12",
@@ -1478,7 +1533,26 @@ dependencies = [
  "futures-core",
  "futures-sink",
  "futures-util",
- "http",
+ "http 0.2.11",
+ "indexmap 2.1.0",
+ "slab",
+ "tokio",
+ "tokio-util",
+ "tracing",
+]
+
+[[package]]
+name = "h2"
+version = "0.4.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "816ec7294445779408f36fe57bc5b7fc1cf59664059096c65f905c1c61f58069"
+dependencies = [
+ "bytes",
+ "fnv",
+ "futures-core",
+ "futures-sink",
+ "futures-util",
+ "http 1.1.0",
  "indexmap 2.1.0",
  "slab",
  "tokio",
@@ -1553,13 +1627,47 @@ dependencies = [
 ]
 
 [[package]]
+name = "http"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "21b9ddb458710bc376481b842f5da65cdf31522de232c1ca8146abce2a358258"
+dependencies = [
+ "bytes",
+ "fnv",
+ "itoa",
+]
+
+[[package]]
 name = "http-body"
 version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7ceab25649e9960c0311ea418d17bee82c0dcec1bd053b5f9a66e265a693bed2"
 dependencies = [
  "bytes",
- "http",
+ "http 0.2.11",
+ "pin-project-lite",
+]
+
+[[package]]
+name = "http-body"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1cac85db508abc24a2e48553ba12a996e87244a0395ce011e62b37158745d643"
+dependencies = [
+ "bytes",
+ "http 1.1.0",
+]
+
+[[package]]
+name = "http-body-util"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0475f8b2ac86659c21b64320d5d653f9efe42acd2a4e560073ec61a155a34f1d"
+dependencies = [
+ "bytes",
+ "futures-core",
+ "http 1.1.0",
+ "http-body 1.0.0",
  "pin-project-lite",
 ]
 
@@ -1597,9 +1705,9 @@ dependencies = [
  "futures-channel",
  "futures-core",
  "futures-util",
- "h2",
- "http",
- "http-body",
+ "h2 0.3.26",
+ "http 0.2.11",
+ "http-body 0.4.6",
  "httparse",
  "httpdate",
  "itoa",
@@ -1612,14 +1720,34 @@ dependencies = [
 ]
 
 [[package]]
+name = "hyper"
+version = "1.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fe575dd17d0862a9a33781c8c4696a55c320909004a67a00fb286ba8b1bc496d"
+dependencies = [
+ "bytes",
+ "futures-channel",
+ "futures-util",
+ "h2 0.4.4",
+ "http 1.1.0",
+ "http-body 1.0.0",
+ "httparse",
+ "httpdate",
+ "itoa",
+ "pin-project-lite",
+ "smallvec",
+ "tokio",
+]
+
+[[package]]
 name = "hyper-rustls"
 version = "0.24.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ec3efd23720e2049821a693cbc7e65ea87c72f1c58ff2f9522ff332b1491e590"
 dependencies = [
  "futures-util",
- "http",
- "hyper",
+ "http 0.2.11",
+ "hyper 0.14.28",
  "rustls 0.21.12",
  "rustls-native-certs 0.6.3",
  "tokio",
@@ -1632,13 +1760,29 @@ version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bbb958482e8c7be4bc3cf272a766a2b0bf1a6755e7a6ae777f017a31d11b13b1"
 dependencies = [
- "hyper",
+ "hyper 0.14.28",
  "pin-project-lite",
  "tokio",
  "tokio-io-timeout",
 ]
 
 [[package]]
+name = "hyper-util"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca38ef113da30126bbff9cd1705f9273e15d45498615d138b0c20279ac7a76aa"
+dependencies = [
+ "bytes",
+ "futures-util",
+ "http 1.1.0",
+ "http-body 1.0.0",
+ "hyper 1.3.1",
+ "pin-project-lite",
+ "socket2",
+ "tokio",
+]
+
+[[package]]
 name = "iana-time-zone"
 version = "0.1.60"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -2095,6 +2239,35 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e5ce46fe64a9d73be07dcbe690a38ce1b293be448fd8ce1e6c1b8062c9f72c6a"
 
 [[package]]
+name = "nar-bridge"
+version = "0.1.0"
+dependencies = [
+ "axum 0.7.5",
+ "bytes",
+ "clap",
+ "data-encoding",
+ "hex-literal",
+ "itertools 0.12.0",
+ "nix-compat",
+ "prost",
+ "prost-build",
+ "rstest",
+ "serde",
+ "thiserror",
+ "tokio",
+ "tokio-listener",
+ "tokio-util",
+ "tonic",
+ "tonic-build",
+ "tracing",
+ "tracing-subscriber",
+ "tvix-castore",
+ "tvix-store",
+ "tvix-tracing",
+ "url",
+]
+
+[[package]]
 name = "nibble_vec"
 version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -2260,7 +2433,7 @@ dependencies = [
  "chrono",
  "futures",
  "humantime",
- "hyper",
+ "hyper 0.14.28",
  "itertools 0.12.0",
  "md-5",
  "parking_lot 0.12.2",
@@ -2320,7 +2493,7 @@ checksum = "7690dc77bf776713848c4faa6501157469017eaf332baccd4eb1cea928743d94"
 dependencies = [
  "async-trait",
  "bytes",
- "http",
+ "http 0.2.11",
  "opentelemetry",
 ]
 
@@ -2332,7 +2505,7 @@ checksum = "1a016b8d9495c639af2145ac22387dcb88e44118e45320d9238fbf4e7889abcb"
 dependencies = [
  "async-trait",
  "futures-core",
- "http",
+ "http 0.2.11",
  "opentelemetry",
  "opentelemetry-proto",
  "opentelemetry-semantic-conventions",
@@ -2981,10 +3154,10 @@ dependencies = [
  "encoding_rs",
  "futures-core",
  "futures-util",
- "h2",
- "http",
- "http-body",
- "hyper",
+ "h2 0.3.26",
+ "http 0.2.11",
+ "http-body 0.4.6",
+ "hyper 0.14.28",
  "hyper-rustls",
  "ipnet",
  "js-sys",
@@ -3021,7 +3194,7 @@ checksum = "5a735987236a8e238bf0296c7e351b999c188ccc11477f311b82b55c93984216"
 dependencies = [
  "anyhow",
  "async-trait",
- "http",
+ "http 0.2.11",
  "reqwest",
  "serde",
  "task-local-extensions",
@@ -3372,18 +3545,18 @@ checksum = "b97ed7a9823b74f99c7742f5336af7be5ecd3eeafcb1507d1fa93347b1d589b0"
 
 [[package]]
 name = "serde"
-version = "1.0.197"
+version = "1.0.204"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3fb1c873e1b9b056a4dc4c0c198b24c3ffa059243875552b2bd0933b1aee4ce2"
+checksum = "bc76f558e0cbb2a839d37354c575f1dc3fdc6546b5be373ba43d95f231bf7c12"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.197"
+version = "1.0.204"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7eb0b34b42edc17f6b7cac84a52a1c5f0e1bb2227e997ca9011ea3dd34e8610b"
+checksum = "e0cd7e117be63d3c3678776753929474f3b04a43a080c744d6b0ae2a8c28e222"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -3402,6 +3575,16 @@ dependencies = [
 ]
 
 [[package]]
+name = "serde_path_to_error"
+version = "0.1.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "af99884400da37c88f5e9146b7f1fd0fbcae8f6eec4e9da38b67d05486f814a6"
+dependencies = [
+ "itoa",
+ "serde",
+]
+
+[[package]]
 name = "serde_qs"
 version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -3686,6 +3869,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2047c6ded9c721764247e62cd3b03c09ffc529b2ba5b10ec482ae507a4a70160"
 
 [[package]]
+name = "sync_wrapper"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a7065abeca94b6a8a577f9bd45aa0867a2238b74e8eb67cf10d492bc39351394"
+
+[[package]]
 name = "system-configuration"
 version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -3913,16 +4102,21 @@ version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4134661e12ec11c6276be73544a43144a357b08dfab5c41fd226e15b5bc9a6b2"
 dependencies = [
+ "axum 0.7.5",
  "clap",
  "document-features",
  "futures-core",
  "futures-util",
+ "hyper 1.3.1",
+ "hyper-util",
  "nix 0.26.4",
  "pin-project",
  "socket2",
  "tokio",
  "tokio-util",
  "tonic",
+ "tower",
+ "tower-service",
  "tracing",
 ]
 
@@ -4065,13 +4259,13 @@ checksum = "76c4eb7a4e9ef9d4763600161f12f5070b92a578e1b634db88a6887844c91a13"
 dependencies = [
  "async-stream",
  "async-trait",
- "axum",
+ "axum 0.6.20",
  "base64",
  "bytes",
- "h2",
- "http",
- "http-body",
- "hyper",
+ "h2 0.3.26",
+ "http 0.2.11",
+ "http-body 0.4.6",
+ "hyper 0.14.28",
  "hyper-timeout",
  "percent-encoding",
  "pin-project",
@@ -4144,8 +4338,8 @@ dependencies = [
  "bytes",
  "futures-core",
  "futures-util",
- "http",
- "http-body",
+ "http 0.2.11",
+ "http-body 0.4.6",
  "http-range-header",
  "pin-project-lite",
  "tower-layer",
@@ -4571,7 +4765,7 @@ dependencies = [
 name = "tvix-tracing"
 version = "0.1.0"
 dependencies = [
- "http",
+ "http 0.2.11",
  "indicatif",
  "lazy_static",
  "opentelemetry",
diff --git a/tvix/Cargo.nix b/tvix/Cargo.nix
index 8a52332aba20..221211c1c842 100644
--- a/tvix/Cargo.nix
+++ b/tvix/Cargo.nix
@@ -35,6 +35,16 @@ rec {
   # You can override the features with
   # workspaceMembers."${crateName}".build.override { features = [ "default" "feature1" ... ]; }.
   workspaceMembers = {
+    "nar-bridge" = rec {
+      packageId = "nar-bridge";
+      build = internal.buildRustCrateWithFeatures {
+        packageId = "nar-bridge";
+      };
+
+      # Debug support which might change between releases.
+      # File a bug if you depend on any for non-debug work!
+      debug = internal.debugCrate { inherit packageId; };
+    };
     "nix-compat" = rec {
       packageId = "nix-compat";
       build = internal.buildRustCrateWithFeatures {
@@ -1006,7 +1016,7 @@ rec {
         ];
 
       };
-      "axum" = rec {
+      "axum 0.6.20" = rec {
         crateName = "axum";
         version = "0.6.20";
         edition = "2021";
@@ -1018,7 +1028,7 @@ rec {
           }
           {
             name = "axum-core";
-            packageId = "axum-core";
+            packageId = "axum-core 0.3.4";
           }
           {
             name = "bitflags";
@@ -1036,15 +1046,15 @@ rec {
           }
           {
             name = "http";
-            packageId = "http";
+            packageId = "http 0.2.11";
           }
           {
             name = "http-body";
-            packageId = "http-body";
+            packageId = "http-body 0.4.6";
           }
           {
             name = "hyper";
-            packageId = "hyper";
+            packageId = "hyper 0.14.28";
             features = [ "stream" ];
           }
           {
@@ -1077,7 +1087,7 @@ rec {
           }
           {
             name = "sync_wrapper";
-            packageId = "sync_wrapper";
+            packageId = "sync_wrapper 0.1.2";
           }
           {
             name = "tower";
@@ -1134,7 +1144,184 @@ rec {
           "ws" = [ "tokio" "dep:tokio-tungstenite" "dep:sha1" "dep:base64" ];
         };
       };
-      "axum-core" = rec {
+      "axum 0.7.5" = rec {
+        crateName = "axum";
+        version = "0.7.5";
+        edition = "2021";
+        sha256 = "1kyb7pzgn60crl9wyq7dhciv40sxdr1mbqx2r4s7g9j253qrlv1s";
+        dependencies = [
+          {
+            name = "async-trait";
+            packageId = "async-trait";
+          }
+          {
+            name = "axum-core";
+            packageId = "axum-core 0.4.3";
+          }
+          {
+            name = "bytes";
+            packageId = "bytes";
+          }
+          {
+            name = "futures-util";
+            packageId = "futures-util";
+            usesDefaultFeatures = false;
+            features = [ "alloc" ];
+          }
+          {
+            name = "http";
+            packageId = "http 1.1.0";
+          }
+          {
+            name = "http-body";
+            packageId = "http-body 1.0.0";
+          }
+          {
+            name = "http-body-util";
+            packageId = "http-body-util";
+          }
+          {
+            name = "hyper";
+            packageId = "hyper 1.3.1";
+            optional = true;
+          }
+          {
+            name = "hyper-util";
+            packageId = "hyper-util";
+            optional = true;
+            features = [ "tokio" "server" ];
+          }
+          {
+            name = "itoa";
+            packageId = "itoa";
+          }
+          {
+            name = "matchit";
+            packageId = "matchit";
+          }
+          {
+            name = "memchr";
+            packageId = "memchr";
+          }
+          {
+            name = "mime";
+            packageId = "mime";
+          }
+          {
+            name = "percent-encoding";
+            packageId = "percent-encoding";
+          }
+          {
+            name = "pin-project-lite";
+            packageId = "pin-project-lite";
+          }
+          {
+            name = "serde";
+            packageId = "serde";
+          }
+          {
+            name = "serde_json";
+            packageId = "serde_json";
+            optional = true;
+            features = [ "raw_value" ];
+          }
+          {
+            name = "serde_path_to_error";
+            packageId = "serde_path_to_error";
+            optional = true;
+          }
+          {
+            name = "serde_urlencoded";
+            packageId = "serde_urlencoded";
+            optional = true;
+          }
+          {
+            name = "sync_wrapper";
+            packageId = "sync_wrapper 1.0.1";
+          }
+          {
+            name = "tokio";
+            packageId = "tokio";
+            rename = "tokio";
+            optional = true;
+            features = [ "time" ];
+          }
+          {
+            name = "tower";
+            packageId = "tower";
+            usesDefaultFeatures = false;
+            features = [ "util" ];
+          }
+          {
+            name = "tower-layer";
+            packageId = "tower-layer";
+          }
+          {
+            name = "tower-service";
+            packageId = "tower-service";
+          }
+          {
+            name = "tracing";
+            packageId = "tracing";
+            optional = true;
+            usesDefaultFeatures = false;
+          }
+        ];
+        buildDependencies = [
+          {
+            name = "rustversion";
+            packageId = "rustversion";
+          }
+        ];
+        devDependencies = [
+          {
+            name = "rustversion";
+            packageId = "rustversion";
+          }
+          {
+            name = "serde";
+            packageId = "serde";
+            features = [ "derive" ];
+          }
+          {
+            name = "serde_json";
+            packageId = "serde_json";
+          }
+          {
+            name = "tokio";
+            packageId = "tokio";
+            rename = "tokio";
+            features = [ "macros" "rt" "rt-multi-thread" "net" "test-util" ];
+          }
+          {
+            name = "tower";
+            packageId = "tower";
+            rename = "tower";
+            features = [ "util" "timeout" "limit" "load-shed" "steer" "filter" ];
+          }
+          {
+            name = "tracing";
+            packageId = "tracing";
+          }
+        ];
+        features = {
+          "__private_docs" = [ "tower/full" "dep:tower-http" ];
+          "default" = [ "form" "http1" "json" "matched-path" "original-uri" "query" "tokio" "tower-log" "tracing" ];
+          "form" = [ "dep:serde_urlencoded" ];
+          "http1" = [ "dep:hyper" "hyper?/http1" "hyper-util?/http1" ];
+          "http2" = [ "dep:hyper" "hyper?/http2" "hyper-util?/http2" ];
+          "json" = [ "dep:serde_json" "dep:serde_path_to_error" ];
+          "macros" = [ "dep:axum-macros" ];
+          "multipart" = [ "dep:multer" ];
+          "query" = [ "dep:serde_urlencoded" ];
+          "tokio" = [ "dep:hyper-util" "dep:tokio" "tokio/net" "tokio/rt" "tower/make" "tokio/macros" ];
+          "tower-log" = [ "tower/log" ];
+          "tracing" = [ "dep:tracing" "axum-core/tracing" ];
+          "ws" = [ "dep:hyper" "tokio" "dep:tokio-tungstenite" "dep:sha1" "dep:base64" ];
+        };
+        resolvedDefaultFeatures = [ "default" "form" "http1" "http2" "json" "matched-path" "original-uri" "query" "tokio" "tower-log" "tracing" ];
+      };
+      "axum-core 0.3.4" = rec {
         crateName = "axum-core";
         version = "0.3.4";
         edition = "2021";
@@ -1156,11 +1343,11 @@ rec {
           }
           {
             name = "http";
-            packageId = "http";
+            packageId = "http 0.2.11";
           }
           {
             name = "http-body";
-            packageId = "http-body";
+            packageId = "http-body 0.4.6";
           }
           {
             name = "mime";
@@ -1194,6 +1381,85 @@ rec {
           "tracing" = [ "dep:tracing" ];
         };
       };
+      "axum-core 0.4.3" = rec {
+        crateName = "axum-core";
+        version = "0.4.3";
+        edition = "2021";
+        sha256 = "1qx28wg4j6qdcdrisqwyaavlzc0zvbsrcwa99zf9456lfbyn6p51";
+        dependencies = [
+          {
+            name = "async-trait";
+            packageId = "async-trait";
+          }
+          {
+            name = "bytes";
+            packageId = "bytes";
+          }
+          {
+            name = "futures-util";
+            packageId = "futures-util";
+            usesDefaultFeatures = false;
+            features = [ "alloc" ];
+          }
+          {
+            name = "http";
+            packageId = "http 1.1.0";
+          }
+          {
+            name = "http-body";
+            packageId = "http-body 1.0.0";
+          }
+          {
+            name = "http-body-util";
+            packageId = "http-body-util";
+          }
+          {
+            name = "mime";
+            packageId = "mime";
+          }
+          {
+            name = "pin-project-lite";
+            packageId = "pin-project-lite";
+          }
+          {
+            name = "sync_wrapper";
+            packageId = "sync_wrapper 0.1.2";
+          }
+          {
+            name = "tower-layer";
+            packageId = "tower-layer";
+          }
+          {
+            name = "tower-service";
+            packageId = "tower-service";
+          }
+          {
+            name = "tracing";
+            packageId = "tracing";
+            optional = true;
+            usesDefaultFeatures = false;
+          }
+        ];
+        buildDependencies = [
+          {
+            name = "rustversion";
+            packageId = "rustversion";
+          }
+        ];
+        devDependencies = [
+          {
+            name = "futures-util";
+            packageId = "futures-util";
+            usesDefaultFeatures = false;
+            features = [ "alloc" ];
+          }
+        ];
+        features = {
+          "__private_docs" = [ "dep:tower-http" ];
+          "tracing" = [ "dep:tracing" ];
+        };
+        resolvedDefaultFeatures = [ "tracing" ];
+      };
       "backtrace" = rec {
         crateName = "backtrace";
         version = "0.3.69";
@@ -1298,7 +1564,7 @@ rec {
           }
           {
             name = "http";
-            packageId = "http";
+            packageId = "http 0.2.11";
           }
           {
             name = "log";
@@ -4176,7 +4442,7 @@ rec {
           }
           {
             name = "hyper";
-            packageId = "hyper";
+            packageId = "hyper 0.14.28";
             features = [ "client" "runtime" "http2" ];
           }
           {
@@ -4423,7 +4689,7 @@ rec {
         ];
 
       };
-      "h2" = rec {
+      "h2 0.3.26" = rec {
         crateName = "h2";
         version = "0.3.26";
         edition = "2018";
@@ -4458,7 +4724,79 @@ rec {
           }
           {
             name = "http";
-            packageId = "http";
+            packageId = "http 0.2.11";
+          }
+          {
+            name = "indexmap";
+            packageId = "indexmap 2.1.0";
+            features = [ "std" ];
+          }
+          {
+            name = "slab";
+            packageId = "slab";
+          }
+          {
+            name = "tokio";
+            packageId = "tokio";
+            features = [ "io-util" ];
+          }
+          {
+            name = "tokio-util";
+            packageId = "tokio-util";
+            features = [ "codec" "io" ];
+          }
+          {
+            name = "tracing";
+            packageId = "tracing";
+            usesDefaultFeatures = false;
+            features = [ "std" ];
+          }
+        ];
+        devDependencies = [
+          {
+            name = "tokio";
+            packageId = "tokio";
+            features = [ "rt-multi-thread" "macros" "sync" "net" ];
+          }
+        ];
+        features = { };
+      };
+      "h2 0.4.4" = rec {
+        crateName = "h2";
+        version = "0.4.4";
+        edition = "2021";
+        sha256 = "0sc0ymhiqp4hbz39d405cjbga77wnz2pprbgyc498xs58hlwfvl1";
+        authors = [
+          "Carl Lerche <me@carllerche.com>"
+          "Sean McArthur <sean@seanmonstar.com>"
+        ];
+        dependencies = [
+          {
+            name = "bytes";
+            packageId = "bytes";
+          }
+          {
+            name = "fnv";
+            packageId = "fnv";
+          }
+          {
+            name = "futures-core";
+            packageId = "futures-core";
+            usesDefaultFeatures = false;
+          }
+          {
+            name = "futures-sink";
+            packageId = "futures-sink";
+            usesDefaultFeatures = false;
+          }
+          {
+            name = "futures-util";
+            packageId = "futures-util";
+            usesDefaultFeatures = false;
+          }
+          {
+            name = "http";
+            packageId = "http 1.1.0";
           }
           {
             name = "indexmap";
@@ -4646,7 +4984,7 @@ rec {
         ];
 
       };
-      "http" = rec {
+      "http 0.2.11" = rec {
         crateName = "http";
         version = "0.2.11";
         edition = "2018";
@@ -4672,7 +5010,36 @@ rec {
         ];
 
       };
-      "http-body" = rec {
+      "http 1.1.0" = rec {
+        crateName = "http";
+        version = "1.1.0";
+        edition = "2018";
+        sha256 = "0n426lmcxas6h75c2cp25m933pswlrfjz10v91vc62vib2sdvf91";
+        authors = [
+          "Alex Crichton <alex@alexcrichton.com>"
+          "Carl Lerche <me@carllerche.com>"
+          "Sean McArthur <sean@seanmonstar.com>"
+        ];
+        dependencies = [
+          {
+            name = "bytes";
+            packageId = "bytes";
+          }
+          {
+            name = "fnv";
+            packageId = "fnv";
+          }
+          {
+            name = "itoa";
+            packageId = "itoa";
+          }
+        ];
+        features = {
+          "default" = [ "std" ];
+        };
+        resolvedDefaultFeatures = [ "default" "std" ];
+      };
+      "http-body 0.4.6" = rec {
         crateName = "http-body";
         version = "0.4.6";
         edition = "2018";
@@ -4689,7 +5056,63 @@ rec {
           }
           {
             name = "http";
-            packageId = "http";
+            packageId = "http 0.2.11";
+          }
+          {
+            name = "pin-project-lite";
+            packageId = "pin-project-lite";
+          }
+        ];
+
+      };
+      "http-body 1.0.0" = rec {
+        crateName = "http-body";
+        version = "1.0.0";
+        edition = "2018";
+        sha256 = "0hyn8n3iadrbwq8y0p1rl1275s4nm49bllw5wji29g4aa3dqbb0w";
+        authors = [
+          "Carl Lerche <me@carllerche.com>"
+          "Lucio Franco <luciofranco14@gmail.com>"
+          "Sean McArthur <sean@seanmonstar.com>"
+        ];
+        dependencies = [
+          {
+            name = "bytes";
+            packageId = "bytes";
+          }
+          {
+            name = "http";
+            packageId = "http 1.1.0";
+          }
+        ];
+
+      };
+      "http-body-util" = rec {
+        crateName = "http-body-util";
+        version = "0.1.1";
+        edition = "2018";
+        sha256 = "07agldas2qgcfc05ckiarlmf9vzragbda823nqhrqrc6mjrghx84";
+        authors = [
+          "Carl Lerche <me@carllerche.com>"
+          "Lucio Franco <luciofranco14@gmail.com>"
+          "Sean McArthur <sean@seanmonstar.com>"
+        ];
+        dependencies = [
+          {
+            name = "bytes";
+            packageId = "bytes";
+          }
+          {
+            name = "futures-core";
+            packageId = "futures-core";
+          }
+          {
+            name = "http";
+            packageId = "http 1.1.0";
+          }
+          {
+            name = "http-body";
+            packageId = "http-body 1.0.0";
           }
           {
             name = "pin-project-lite";
@@ -4738,7 +5161,7 @@ rec {
         ];
 
       };
-      "hyper" = rec {
+      "hyper 0.14.28" = rec {
         crateName = "hyper";
         version = "0.14.28";
         edition = "2018";
@@ -4767,16 +5190,16 @@ rec {
           }
           {
             name = "h2";
-            packageId = "h2";
+            packageId = "h2 0.3.26";
             optional = true;
           }
           {
             name = "http";
-            packageId = "http";
+            packageId = "http 0.2.11";
           }
           {
             name = "http-body";
-            packageId = "http-body";
+            packageId = "http-body 0.4.6";
           }
           {
             name = "httparse";
@@ -4845,6 +5268,104 @@ rec {
         };
         resolvedDefaultFeatures = [ "client" "default" "full" "h2" "http1" "http2" "runtime" "server" "socket2" "stream" "tcp" ];
       };
+      "hyper 1.3.1" = rec {
+        crateName = "hyper";
+        version = "1.3.1";
+        edition = "2021";
+        sha256 = "0va9pjqshsr8zc07m9h4j2821hsmd9lw9j416yisjqh8gp8msmzy";
+        authors = [
+          "Sean McArthur <sean@seanmonstar.com>"
+        ];
+        dependencies = [
+          {
+            name = "bytes";
+            packageId = "bytes";
+          }
+          {
+            name = "futures-channel";
+            packageId = "futures-channel";
+            optional = true;
+          }
+          {
+            name = "futures-util";
+            packageId = "futures-util";
+            optional = true;
+            usesDefaultFeatures = false;
+          }
+          {
+            name = "h2";
+            packageId = "h2 0.4.4";
+            optional = true;
+          }
+          {
+            name = "http";
+            packageId = "http 1.1.0";
+          }
+          {
+            name = "http-body";
+            packageId = "http-body 1.0.0";
+          }
+          {
+            name = "httparse";
+            packageId = "httparse";
+            optional = true;
+          }
+          {
+            name = "httpdate";
+            packageId = "httpdate";
+            optional = true;
+          }
+          {
+            name = "itoa";
+            packageId = "itoa";
+            optional = true;
+          }
+          {
+            name = "pin-project-lite";
+            packageId = "pin-project-lite";
+            optional = true;
+          }
+          {
+            name = "smallvec";
+            packageId = "smallvec";
+            optional = true;
+            features = [ "const_generics" "const_new" ];
+          }
+          {
+            name = "tokio";
+            packageId = "tokio";
+            features = [ "sync" ];
+          }
+        ];
+        devDependencies = [
+          {
+            name = "futures-channel";
+            packageId = "futures-channel";
+            features = [ "sink" ];
+          }
+          {
+            name = "futures-util";
+            packageId = "futures-util";
+            usesDefaultFeatures = false;
+            features = [ "alloc" "sink" ];
+          }
+          {
+            name = "tokio";
+            packageId = "tokio";
+            features = [ "fs" "macros" "net" "io-std" "io-util" "rt" "rt-multi-thread" "sync" "time" "test-util" ];
+          }
+        ];
+        features = {
+          "client" = [ "dep:want" "dep:pin-project-lite" "dep:smallvec" ];
+          "ffi" = [ "dep:libc" "dep:http-body-util" "futures-util?/alloc" ];
+          "full" = [ "client" "http1" "http2" "server" ];
+          "http1" = [ "dep:futures-channel" "dep:futures-util" "dep:httparse" "dep:itoa" ];
+          "http2" = [ "dep:futures-channel" "dep:futures-util" "dep:h2" ];
+          "server" = [ "dep:httpdate" "dep:pin-project-lite" "dep:smallvec" ];
+          "tracing" = [ "dep:tracing" ];
+        };
+        resolvedDefaultFeatures = [ "default" "http1" "http2" "server" ];
+      };
       "hyper-rustls" = rec {
         crateName = "hyper-rustls";
         version = "0.24.2";
@@ -4858,11 +5379,11 @@ rec {
           }
           {
             name = "http";
-            packageId = "http";
+            packageId = "http 0.2.11";
           }
           {
             name = "hyper";
-            packageId = "hyper";
+            packageId = "hyper 0.14.28";
             usesDefaultFeatures = false;
             features = [ "client" ];
           }
@@ -4889,7 +5410,7 @@ rec {
         devDependencies = [
           {
             name = "hyper";
-            packageId = "hyper";
+            packageId = "hyper 0.14.28";
             features = [ "full" ];
           }
           {
@@ -4931,7 +5452,7 @@ rec {
         dependencies = [
           {
             name = "hyper";
-            packageId = "hyper";
+            packageId = "hyper 0.14.28";
             features = [ "client" ];
           }
           {
@@ -4950,7 +5471,7 @@ rec {
         devDependencies = [
           {
             name = "hyper";
-            packageId = "hyper";
+            packageId = "hyper 0.14.28";
             features = [ "client" "http1" "tcp" ];
           }
           {
@@ -4961,6 +5482,82 @@ rec {
         ];
 
       };
+      "hyper-util" = rec {
+        crateName = "hyper-util";
+        version = "0.1.3";
+        edition = "2021";
+        sha256 = "1akngan7j0n2n0wd25c6952mvqbkj9gp1lcwzyxjc0d37l8yyf6a";
+        authors = [
+          "Sean McArthur <sean@seanmonstar.com>"
+        ];
+        dependencies = [
+          {
+            name = "bytes";
+            packageId = "bytes";
+          }
+          {
+            name = "futures-util";
+            packageId = "futures-util";
+            usesDefaultFeatures = false;
+          }
+          {
+            name = "http";
+            packageId = "http 1.1.0";
+          }
+          {
+            name = "http-body";
+            packageId = "http-body 1.0.0";
+          }
+          {
+            name = "hyper";
+            packageId = "hyper 1.3.1";
+          }
+          {
+            name = "pin-project-lite";
+            packageId = "pin-project-lite";
+          }
+          {
+            name = "socket2";
+            packageId = "socket2";
+            optional = true;
+            features = [ "all" ];
+          }
+          {
+            name = "tokio";
+            packageId = "tokio";
+            optional = true;
+            features = [ "net" "rt" "time" ];
+          }
+        ];
+        devDependencies = [
+          {
+            name = "bytes";
+            packageId = "bytes";
+          }
+          {
+            name = "hyper";
+            packageId = "hyper 1.3.1";
+            features = [ "full" ];
+          }
+          {
+            name = "tokio";
+            packageId = "tokio";
+            features = [ "macros" "test-util" ];
+          }
+        ];
+        features = {
+          "client" = [ "hyper/client" "dep:tracing" "dep:futures-channel" "dep:tower" "dep:tower-service" ];
+          "client-legacy" = [ "client" ];
+          "full" = [ "client" "client-legacy" "server" "server-auto" "service" "http1" "http2" "tokio" ];
+          "http1" = [ "hyper/http1" ];
+          "http2" = [ "hyper/http2" ];
+          "server" = [ "hyper/server" ];
+          "server-auto" = [ "server" "http1" "http2" ];
+          "service" = [ "dep:tower" "dep:tower-service" ];
+          "tokio" = [ "dep:tokio" "dep:socket2" ];
+        };
+        resolvedDefaultFeatures = [ "default" "http1" "http2" "server" "server-auto" "tokio" ];
+      };
       "iana-time-zone" = rec {
         crateName = "iana-time-zone";
         version = "0.1.60";
@@ -6260,6 +6857,130 @@ rec {
           "serde_impl" = [ "serde" ];
         };
       };
+      "nar-bridge" = rec {
+        crateName = "nar-bridge";
+        version = "0.1.0";
+        edition = "2021";
+        crateBin = [
+          {
+            name = "nar-bridge";
+            path = "src/bin/nar-bridge.rs";
+            requiredFeatures = [ ];
+          }
+        ];
+        src = lib.cleanSourceWith { filter = sourceFilter; src = ./nar-bridge; };
+        dependencies = [
+          {
+            name = "axum";
+            packageId = "axum 0.7.5";
+            features = [ "http2" ];
+          }
+          {
+            name = "bytes";
+            packageId = "bytes";
+          }
+          {
+            name = "clap";
+            packageId = "clap";
+            features = [ "derive" "env" ];
+          }
+          {
+            name = "data-encoding";
+            packageId = "data-encoding";
+          }
+          {
+            name = "itertools";
+            packageId = "itertools 0.12.0";
+          }
+          {
+            name = "nix-compat";
+            packageId = "nix-compat";
+            features = [ "async" ];
+          }
+          {
+            name = "prost";
+            packageId = "prost";
+          }
+          {
+            name = "serde";
+            packageId = "serde";
+            features = [ "derive" ];
+          }
+          {
+            name = "thiserror";
+            packageId = "thiserror";
+          }
+          {
+            name = "tokio";
+            packageId = "tokio";
+          }
+          {
+            name = "tokio-listener";
+            packageId = "tokio-listener";
+            features = [ "axum07" "clap" "multi-listener" "sd_listen" ];
+          }
+          {
+            name = "tokio-util";
+            packageId = "tokio-util";
+            features = [ "io" "io-util" "compat" ];
+          }
+          {
+            name = "tonic";
+            packageId = "tonic";
+            features = [ "tls" "tls-roots" ];
+          }
+          {
+            name = "tracing";
+            packageId = "tracing";
+          }
+          {
+            name = "tracing-subscriber";
+            packageId = "tracing-subscriber";
+          }
+          {
+            name = "tvix-castore";
+            packageId = "tvix-castore";
+          }
+          {
+            name = "tvix-store";
+            packageId = "tvix-store";
+          }
+          {
+            name = "tvix-tracing";
+            packageId = "tvix-tracing";
+            features = [ "tonic" ];
+          }
+          {
+            name = "url";
+            packageId = "url";
+          }
+        ];
+        buildDependencies = [
+          {
+            name = "prost-build";
+            packageId = "prost-build";
+          }
+          {
+            name = "tonic-build";
+            packageId = "tonic-build";
+          }
+        ];
+        devDependencies = [
+          {
+            name = "hex-literal";
+            packageId = "hex-literal";
+          }
+          {
+            name = "rstest";
+            packageId = "rstest";
+          }
+        ];
+        features = {
+          "default" = [ "otlp" ];
+          "otlp" = [ "tvix-tracing/otlp" ];
+        };
+        resolvedDefaultFeatures = [ "default" "otlp" ];
+      };
       "nibble_vec" = rec {
         crateName = "nibble_vec";
         version = "0.1.0";
@@ -6796,7 +7517,7 @@ rec {
           }
           {
             name = "hyper";
-            packageId = "hyper";
+            packageId = "hyper 0.14.28";
             optional = true;
             usesDefaultFeatures = false;
           }
@@ -6890,7 +7611,7 @@ rec {
         devDependencies = [
           {
             name = "hyper";
-            packageId = "hyper";
+            packageId = "hyper 0.14.28";
             features = [ "server" ];
           }
           {
@@ -7020,7 +7741,7 @@ rec {
           }
           {
             name = "http";
-            packageId = "http";
+            packageId = "http 0.2.11";
             usesDefaultFeatures = false;
           }
           {
@@ -7053,7 +7774,7 @@ rec {
           }
           {
             name = "http";
-            packageId = "http";
+            packageId = "http 0.2.11";
             optional = true;
             usesDefaultFeatures = false;
           }
@@ -9022,21 +9743,21 @@ rec {
           }
           {
             name = "h2";
-            packageId = "h2";
+            packageId = "h2 0.3.26";
             target = { target, features }: (!("wasm32" == target."arch" or null));
           }
           {
             name = "http";
-            packageId = "http";
+            packageId = "http 0.2.11";
           }
           {
             name = "http-body";
-            packageId = "http-body";
+            packageId = "http-body 0.4.6";
             target = { target, features }: (!("wasm32" == target."arch" or null));
           }
           {
             name = "hyper";
-            packageId = "hyper";
+            packageId = "hyper 0.14.28";
             usesDefaultFeatures = false;
             target = { target, features }: (!("wasm32" == target."arch" or null));
             features = [ "tcp" "http1" "http2" "client" "runtime" ];
@@ -9191,7 +9912,7 @@ rec {
         devDependencies = [
           {
             name = "hyper";
-            packageId = "hyper";
+            packageId = "hyper 0.14.28";
             usesDefaultFeatures = false;
             target = { target, features }: (!("wasm32" == target."arch" or null));
             features = [ "tcp" "stream" "http1" "http2" "client" "server" "runtime" ];
@@ -9282,7 +10003,7 @@ rec {
           }
           {
             name = "http";
-            packageId = "http";
+            packageId = "http 0.2.11";
           }
           {
             name = "reqwest";
@@ -10378,9 +11099,9 @@ rec {
       };
       "serde" = rec {
         crateName = "serde";
-        version = "1.0.197";
+        version = "1.0.204";
         edition = "2018";
-        sha256 = "1qjcxqd3p4yh5cmmax9q4ics1zy34j5ij32cvjj5dc5rw5rwic9z";
+        sha256 = "04kwpwqz559xlhxkggmm8rjxqgywy5swam3kscwsicnbw1cgaxmw";
         authors = [
           "Erick Tryzelaar <erick.tryzelaar@gmail.com>"
           "David Tolnay <dtolnay@gmail.com>"
@@ -10412,9 +11133,9 @@ rec {
       };
       "serde_derive" = rec {
         crateName = "serde_derive";
-        version = "1.0.197";
+        version = "1.0.204";
         edition = "2015";
-        sha256 = "02v1x0sdv8qy06lpr6by4ar1n3jz3hmab15cgimpzhgd895v7c3y";
+        sha256 = "08p25262mbmhsr2cg0508d5b1wvljj956rvpg0v3qgg6gc8pxkg0";
         procMacro = true;
         authors = [
           "Erick Tryzelaar <erick.tryzelaar@gmail.com>"
@@ -10481,7 +11202,27 @@ rec {
           "preserve_order" = [ "indexmap" "std" ];
           "std" = [ "serde/std" ];
         };
-        resolvedDefaultFeatures = [ "alloc" "default" "std" ];
+        resolvedDefaultFeatures = [ "alloc" "default" "raw_value" "std" ];
+      };
+      "serde_path_to_error" = rec {
+        crateName = "serde_path_to_error";
+        version = "0.1.16";
+        edition = "2021";
+        sha256 = "19hlz2359l37ifirskpcds7sxg0gzpqvfilibs7whdys0128i6dg";
+        authors = [
+          "David Tolnay <dtolnay@gmail.com>"
+        ];
+        dependencies = [
+          {
+            name = "itoa";
+            packageId = "itoa";
+          }
+          {
+            name = "serde";
+            packageId = "serde";
+          }
+        ];
+
       };
       "serde_qs" = rec {
         crateName = "serde_qs";
@@ -10970,6 +11711,7 @@ rec {
           "drain_keep_rest" = [ "drain_filter" ];
           "serde" = [ "dep:serde" ];
         };
+        resolvedDefaultFeatures = [ "const_generics" "const_new" ];
       };
       "smol_str" = rec {
         crateName = "smol_str";
@@ -11332,7 +12074,7 @@ rec {
         };
         resolvedDefaultFeatures = [ "clone-impls" "default" "derive" "extra-traits" "full" "parsing" "printing" "proc-macro" "quote" "visit" "visit-mut" ];
       };
-      "sync_wrapper" = rec {
+      "sync_wrapper 0.1.2" = rec {
         crateName = "sync_wrapper";
         version = "0.1.2";
         edition = "2018";
@@ -11345,6 +12087,19 @@ rec {
           "futures-core" = [ "dep:futures-core" ];
         };
       };
+      "sync_wrapper 1.0.1" = rec {
+        crateName = "sync_wrapper";
+        version = "1.0.1";
+        edition = "2018";
+        sha256 = "150k6lwvr4nl237ngsz8fj5j78k712m4bggrfyjsidllraz5l1m7";
+        authors = [
+          "Actyx AG <developer@actyx.io>"
+        ];
+        features = {
+          "futures" = [ "futures-core" ];
+          "futures-core" = [ "dep:futures-core" ];
+        };
+      };
       "system-configuration" = rec {
         crateName = "system-configuration";
         version = "0.5.1";
@@ -11979,6 +12734,12 @@ rec {
         sha256 = "1cm6r5dmpq96s8gw9dgsinq5g8s466j48dg7dckwc4gc28g6cd21";
         dependencies = [
           {
+            name = "axum";
+            packageId = "axum 0.7.5";
+            rename = "axum07";
+            optional = true;
+          }
+          {
             name = "clap";
             packageId = "clap";
             optional = true;
@@ -11999,6 +12760,19 @@ rec {
             optional = true;
           }
           {
+            name = "hyper";
+            packageId = "hyper 1.3.1";
+            rename = "hyper1";
+            optional = true;
+            features = [ "server" ];
+          }
+          {
+            name = "hyper-util";
+            packageId = "hyper-util";
+            optional = true;
+            features = [ "server" "server-auto" ];
+          }
+          {
             name = "nix";
             packageId = "nix 0.26.4";
             optional = true;
@@ -12034,6 +12808,17 @@ rec {
             optional = true;
           }
           {
+            name = "tower";
+            packageId = "tower";
+            optional = true;
+            features = [ "util" ];
+          }
+          {
+            name = "tower-service";
+            packageId = "tower-service";
+            optional = true;
+          }
+          {
             name = "tracing";
             packageId = "tracing";
           }
@@ -12069,7 +12854,7 @@ rec {
           "unix_path_tools" = [ "nix" ];
           "user_facing_default" = [ "inetd" "unix" "unix_path_tools" "sd_listen" "socket_options" ];
         };
-        resolvedDefaultFeatures = [ "clap" "default" "inetd" "multi-listener" "nix" "sd_listen" "socket2" "socket_options" "tokio-util" "tonic011" "unix" "unix_path_tools" "user_facing_default" ];
+        resolvedDefaultFeatures = [ "axum07" "clap" "default" "inetd" "multi-listener" "nix" "sd_listen" "socket2" "socket_options" "tokio-util" "tonic011" "unix" "unix_path_tools" "user_facing_default" ];
       };
       "tokio-macros" = rec {
         crateName = "tokio-macros";
@@ -12534,7 +13319,7 @@ rec {
           }
           {
             name = "axum";
-            packageId = "axum";
+            packageId = "axum 0.6.20";
             optional = true;
             usesDefaultFeatures = false;
           }
@@ -12548,20 +13333,20 @@ rec {
           }
           {
             name = "h2";
-            packageId = "h2";
+            packageId = "h2 0.3.26";
             optional = true;
           }
           {
             name = "http";
-            packageId = "http";
+            packageId = "http 0.2.11";
           }
           {
             name = "http-body";
-            packageId = "http-body";
+            packageId = "http-body 0.4.6";
           }
           {
             name = "hyper";
-            packageId = "hyper";
+            packageId = "hyper 0.14.28";
             optional = true;
             features = [ "full" ];
           }
@@ -12900,11 +13685,11 @@ rec {
           }
           {
             name = "http";
-            packageId = "http";
+            packageId = "http 0.2.11";
           }
           {
             name = "http-body";
-            packageId = "http-body";
+            packageId = "http-body 0.4.6";
           }
           {
             name = "http-range-header";
@@ -14618,7 +15403,7 @@ rec {
         dependencies = [
           {
             name = "http";
-            packageId = "http";
+            packageId = "http 0.2.11";
             optional = true;
           }
           {
diff --git a/tvix/Cargo.toml b/tvix/Cargo.toml
index ed5c6d0d8b5c..53b9134a567b 100644
--- a/tvix/Cargo.toml
+++ b/tvix/Cargo.toml
@@ -25,6 +25,7 @@ members = [
   "eval",
   "eval/builtin-macros",
   "glue",
+  "nar-bridge",
   "nix-compat",
   "serde",
   "store",
diff --git a/tvix/nar-bridge/Cargo.toml b/tvix/nar-bridge/Cargo.toml
new file mode 100644
index 000000000000..920b81c45cbe
--- /dev/null
+++ b/tvix/nar-bridge/Cargo.toml
@@ -0,0 +1,40 @@
+[package]
+name = "nar-bridge"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+axum = { version = "0.7.5", features = ["http2"] }
+bytes = "1.4.0"
+clap = { version = "4.0", features = ["derive", "env"] }
+data-encoding = "2.3.3"
+itertools = "0.12.0"
+prost = "0.12.1"
+nix-compat = { path = "../nix-compat", features = ["async"] }
+thiserror = "1.0.56"
+tokio = { version = "1.32.0" }
+tokio-listener = { version = "0.4.2", features = [ "axum07", "clap", "multi-listener", "sd_listen" ] }
+tokio-util = { version = "0.7.9", features = ["io", "io-util", "compat"] }
+tonic = { version = "0.11.0", features = ["tls", "tls-roots"] }
+tvix-castore = { path = "../castore" }
+tvix-store = { path = "../store" }
+tvix-tracing = { path = "../tracing", features = ["tonic"] }
+tracing = "0.1.37"
+tracing-subscriber = "0.3.16"
+url = "2.4.0"
+serde = { version = "1.0.204", features = ["derive"] }
+
+[build-dependencies]
+prost-build = "0.12.1"
+tonic-build = "0.11.0"
+
+[features]
+default = ["otlp"]
+otlp = ["tvix-tracing/otlp"]
+
+[dev-dependencies]
+hex-literal = "0.4.1"
+rstest = "0.19.0"
+
+[lints]
+workspace = true
diff --git a/tvix/nar-bridge/default.nix b/tvix/nar-bridge/default.nix
new file mode 100644
index 000000000000..3e116a1fc02b
--- /dev/null
+++ b/tvix/nar-bridge/default.nix
@@ -0,0 +1,11 @@
+{ depot, lib, ... }:
+
+(depot.tvix.crates.workspaceMembers.nar-bridge.build.override {
+  runTests = true;
+}).overrideAttrs (old: rec {
+  meta.ci.targets = lib.filter (x: lib.hasPrefix "with-features" x || x == "no-features") (lib.attrNames passthru);
+  passthru = (depot.tvix.utils.mkFeaturePowerset {
+    inherit (old) crateName;
+    features = [ "otlp" ];
+  });
+})
diff --git a/tvix/nar-bridge/src/bin/nar-bridge.rs b/tvix/nar-bridge/src/bin/nar-bridge.rs
new file mode 100644
index 000000000000..e24068ca2300
--- /dev/null
+++ b/tvix/nar-bridge/src/bin/nar-bridge.rs
@@ -0,0 +1,84 @@
+use clap::Parser;
+use nar_bridge::AppState;
+use tracing::info;
+
+/// Expose the Nix HTTP Binary Cache protocol for a tvix-store.
+#[derive(Parser)]
+#[command(author, version, about, long_about = None)]
+struct Cli {
+    #[arg(long, env, default_value = "grpc+http://[::1]:8000")]
+    blob_service_addr: String,
+
+    #[arg(long, env, default_value = "grpc+http://[::1]:8000")]
+    directory_service_addr: String,
+
+    #[arg(long, env, default_value = "grpc+http://[::1]:8000")]
+    path_info_service_addr: String,
+
+    /// The priority to announce at the `nix-cache-info` endpoint.
+    /// A lower number means it's *more preferred.
+    #[arg(long, env, default_value_t = 39)]
+    priority: u64,
+
+    /// The address to listen on.
+    #[clap(flatten)]
+    listen_args: tokio_listener::ListenerAddressLFlag,
+
+    #[cfg(feature = "otlp")]
+    /// Whether to configure OTLP. Set --otlp=false to disable.
+    #[arg(long, default_missing_value = "true", default_value = "true", num_args(0..=1), require_equals(true), action(clap::ArgAction::Set))]
+    otlp: bool,
+}
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
+    let cli = Cli::parse();
+
+    let _tracing_handle = {
+        #[allow(unused_mut)]
+        let mut builder = tvix_tracing::TracingBuilder::default();
+        #[cfg(feature = "otlp")]
+        {
+            if cli.otlp {
+                builder = builder.enable_otlp("tvix.store");
+            }
+        }
+        builder.build()?
+    };
+
+    // initialize stores
+    let (blob_service, directory_service, path_info_service, _nar_calculation_service) =
+        tvix_store::utils::construct_services(
+            cli.blob_service_addr,
+            cli.directory_service_addr,
+            cli.path_info_service_addr,
+        )
+        .await?;
+
+    let state = AppState::new(blob_service, directory_service, path_info_service.into());
+
+    let app = nar_bridge::gen_router(cli.priority).with_state(state);
+
+    let listen_address = &cli.listen_args.listen_address.unwrap_or_else(|| {
+        "[::]:8000"
+            .parse()
+            .expect("invalid fallback listen address")
+    });
+
+    let listener = tokio_listener::Listener::bind(
+        listen_address,
+        &Default::default(),
+        &cli.listen_args.listener_options,
+    )
+    .await?;
+
+    info!(listen_address=%listen_address, "starting daemon");
+
+    tokio_listener::axum07::serve(
+        listener,
+        app.into_make_service_with_connect_info::<tokio_listener::SomeSocketAddrClonable>(),
+    )
+    .await?;
+
+    Ok(())
+}
diff --git a/tvix/nar-bridge/src/lib.rs b/tvix/nar-bridge/src/lib.rs
new file mode 100644
index 000000000000..5d9ec43c1cde
--- /dev/null
+++ b/tvix/nar-bridge/src/lib.rs
@@ -0,0 +1,50 @@
+use axum::routing::head;
+use axum::{routing::get, Router};
+use std::sync::Arc;
+use tvix_castore::blobservice::BlobService;
+use tvix_castore::directoryservice::DirectoryService;
+use tvix_store::pathinfoservice::PathInfoService;
+
+mod nar;
+mod narinfo;
+
+#[derive(Clone)]
+pub struct AppState {
+    blob_service: Arc<dyn BlobService>,
+    directory_service: Arc<dyn DirectoryService>,
+    path_info_service: Arc<dyn PathInfoService>,
+}
+
+impl AppState {
+    pub fn new(
+        blob_service: Arc<dyn BlobService>,
+        directory_service: Arc<dyn DirectoryService>,
+        path_info_service: Arc<dyn PathInfoService>,
+    ) -> Self {
+        Self {
+            blob_service,
+            directory_service,
+            path_info_service,
+        }
+    }
+}
+
+pub fn gen_router(priority: u64) -> Router<AppState> {
+    Router::new()
+        .route("/", get(root))
+        .route("/nar/tvix-castore/:root_node_enc", get(nar::get))
+        .route("/:narinfo_str", get(narinfo::get))
+        .route("/:narinfo_str", head(narinfo::head))
+        .route("/nix-cache-info", get(move || nix_cache_info(priority)))
+}
+
+async fn root() -> &'static str {
+    "Hello from nar-bridge"
+}
+
+async fn nix_cache_info(priority: u64) -> String {
+    format!(
+        "StoreDir: /nix/store\nWantMassQuery: 1\nPriority: {}\n",
+        priority
+    )
+}
diff --git a/tvix/nar-bridge/src/nar.rs b/tvix/nar-bridge/src/nar.rs
new file mode 100644
index 000000000000..63cd86e49969
--- /dev/null
+++ b/tvix/nar-bridge/src/nar.rs
@@ -0,0 +1,77 @@
+use axum::body::Body;
+use axum::extract::Query;
+use axum::http::StatusCode;
+use axum::response::Response;
+use bytes::Bytes;
+use data_encoding::BASE64URL_NOPAD;
+use serde::Deserialize;
+use tokio_util::io::ReaderStream;
+use tracing::{instrument, warn};
+
+use crate::AppState;
+
+#[derive(Debug, Deserialize)]
+pub(crate) struct GetNARParams {
+    #[serde(rename = "narsize")]
+    nar_size: u64,
+}
+
+#[instrument(skip(blob_service, directory_service))]
+pub async fn get(
+    axum::extract::Path(root_node_enc): axum::extract::Path<String>,
+    axum::extract::Query(GetNARParams { nar_size }): Query<GetNARParams>,
+    axum::extract::State(AppState {
+        blob_service,
+        directory_service,
+        ..
+    }): axum::extract::State<AppState>,
+) -> Result<Response, StatusCode> {
+    use prost::Message;
+    // b64decode the root node passed *by the user*
+    let root_node_proto = BASE64URL_NOPAD
+        .decode(root_node_enc.as_bytes())
+        .map_err(|e| {
+            warn!(err=%e, "unable to decode root node b64");
+            StatusCode::NOT_FOUND
+        })?;
+
+    // check the proto size to be somewhat reasonable before parsing it.
+    if root_node_proto.len() > 4096 {
+        warn!("rejected too large root node");
+        return Err(StatusCode::BAD_REQUEST);
+    }
+
+    // parse the proto
+    let root_node: tvix_castore::proto::Node = Message::decode(Bytes::from(root_node_enc))
+        .map_err(|e| {
+            warn!(err=%e, "unable to decode root node proto");
+            StatusCode::NOT_FOUND
+        })?;
+
+    // validate it.
+    let root_node = root_node
+        .validate()
+        .map_err(|e| {
+            warn!(err=%e, "root node validation failed");
+            StatusCode::BAD_REQUEST
+        })?
+        .to_owned();
+
+    let (w, r) = tokio::io::duplex(1024 * 8);
+
+    // spawn a task rendering the NAR to the client
+    tokio::spawn(async move {
+        if let Err(e) =
+            tvix_store::nar::write_nar(w, &root_node, blob_service, directory_service).await
+        {
+            warn!(err=%e, "failed to write out NAR");
+        }
+    });
+
+    Ok(Response::builder()
+        .status(StatusCode::OK)
+        .header("cache-control", "max-age=31536000, immutable")
+        .header("content-length", nar_size)
+        .body(Body::from_stream(ReaderStream::new(r)))
+        .unwrap())
+}
diff --git a/tvix/nar-bridge/src/narinfo.rs b/tvix/nar-bridge/src/narinfo.rs
new file mode 100644
index 000000000000..7b6c1bdfdccf
--- /dev/null
+++ b/tvix/nar-bridge/src/narinfo.rs
@@ -0,0 +1,131 @@
+use axum::http::StatusCode;
+use nix_compat::nixbase32;
+use tracing::{instrument, warn, Span};
+use tvix_castore::proto::node::Node;
+
+use crate::AppState;
+
+#[instrument(skip(path_info_service))]
+pub async fn head(
+    axum::extract::Path(narinfo_str): axum::extract::Path<String>,
+    axum::extract::State(AppState {
+        path_info_service, ..
+    }): axum::extract::State<AppState>,
+) -> Result<&'static str, StatusCode> {
+    let digest = parse_narinfo_str(&narinfo_str)?;
+    Span::current().record("path_info.digest", &narinfo_str[0..32]);
+
+    if path_info_service
+        .get(digest)
+        .await
+        .map_err(|e| {
+            warn!(err=%e, "failed to get PathInfo");
+            StatusCode::INTERNAL_SERVER_ERROR
+        })?
+        .is_some()
+    {
+        Ok("")
+    } else {
+        warn!("PathInfo not found");
+        Err(StatusCode::NOT_FOUND)
+    }
+}
+
+#[instrument(skip(path_info_service))]
+pub async fn get(
+    axum::extract::Path(narinfo_str): axum::extract::Path<String>,
+    axum::extract::State(AppState {
+        path_info_service, ..
+    }): axum::extract::State<AppState>,
+) -> Result<String, StatusCode> {
+    let digest = parse_narinfo_str(&narinfo_str)?;
+    Span::current().record("path_info.digest", &narinfo_str[0..32]);
+
+    // fetch the PathInfo
+    let path_info = path_info_service
+        .get(digest)
+        .await
+        .map_err(|e| {
+            warn!(err=%e, "failed to get PathInfo");
+            StatusCode::INTERNAL_SERVER_ERROR
+        })?
+        .ok_or(StatusCode::NOT_FOUND)?;
+
+    let store_path = path_info.validate().map_err(|e| {
+        warn!(err=%e, "invalid PathInfo");
+        StatusCode::INTERNAL_SERVER_ERROR
+    })?;
+
+    let mut narinfo = path_info.to_narinfo(store_path).ok_or_else(|| {
+        warn!(path_info=?path_info, "PathInfo contained no NAR data");
+        StatusCode::INTERNAL_SERVER_ERROR
+    })?;
+
+    // encode the (unnamed) root node in the NAR url itself.
+    let root_node = path_info
+        .node
+        .as_ref()
+        .and_then(|n| n.node.as_ref())
+        .expect("root node must not be none")
+        .clone()
+        .rename("".into());
+
+    let mut buf = Vec::new();
+    Node::encode(&root_node, &mut buf);
+
+    let url = format!(
+        "nar/tvix-castore/{}?narsize={}",
+        data_encoding::BASE64URL_NOPAD.encode(&buf),
+        narinfo.nar_size,
+    );
+
+    narinfo.url = &url;
+
+    Ok(narinfo.to_string())
+}
+
+/// Parses a `3mzh8lvgbynm9daj7c82k2sfsfhrsfsy.narinfo` string and returns the
+/// nixbase32-decoded digest.
+fn parse_narinfo_str(s: &str) -> Result<[u8; 20], StatusCode> {
+    if !s.is_char_boundary(32) {
+        warn!("invalid string, no char boundary at 32");
+        return Err(StatusCode::NOT_FOUND);
+    }
+
+    Ok(match s.split_at(32) {
+        (hash_str, ".narinfo") => {
+            // we know this is 32 bytes
+            let hash_str_fixed: [u8; 32] = hash_str.as_bytes().try_into().unwrap();
+            nixbase32::decode_fixed(hash_str_fixed).map_err(|e| {
+                warn!(err=%e, "invalid digest");
+                StatusCode::NOT_FOUND
+            })?
+        }
+        _ => {
+            warn!("invalid string");
+            return Err(StatusCode::NOT_FOUND);
+        }
+    })
+}
+
+#[cfg(test)]
+mod test {
+    use super::parse_narinfo_str;
+    use hex_literal::hex;
+
+    #[test]
+    fn success() {
+        assert_eq!(
+            hex!("8a12321522fd91efbd60ebb2481af88580f61600"),
+            parse_narinfo_str("00bgd045z0d4icpbc2yyz4gx48ak44la.narinfo").unwrap()
+        );
+    }
+
+    #[test]
+    fn failure() {
+        assert!(parse_narinfo_str("00bgd045z0d4icpbc2yyz4gx48ak44la").is_err());
+        assert!(parse_narinfo_str("/00bgd045z0d4icpbc2yyz4gx48ak44la").is_err());
+        assert!(parse_narinfo_str("000000").is_err());
+        assert!(parse_narinfo_str("00bgd045z0d4icpbc2yyz4gx48ak44l🦊.narinfo").is_err());
+    }
+}
generated by cgit-pink 1.4.1 (git 2.44.2) at 2024-11-26T03·59+0000