chore(tvix/proto): drop evaluator.proto r/7157

This only contained the (unused) evaluator.proto file.

Considering we're less likely to have the CLI talk to a long-running
evaluator, but instead embed the evaluator inside the CLI, remove this.

If we add a RPC to speak to an evaluator, we can resurrect this from
git history.

Change-Id: I2196aade55221660330dfd32dc3e52c39ec6ed43
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10241
Reviewed-by: Adam Joseph <adam@westernsemico.com>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI

2 files changed, 0 insertions, 165 deletions

diff --git a/tvix/proto/LICENSE b/tvix/proto/LICENSE
deleted file mode 100644
index 2034ada6fd9a..000000000000
--- a/tvix/proto/LICENSE
+++ /dev/null
@@ -1,21 +0,0 @@
-Copyright © The Tvix Authors
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-“Software”), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
-CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
diff --git a/tvix/proto/evaluator.proto b/tvix/proto/evaluator.proto
deleted file mode 100644
index 96431a0b3bfb..000000000000
--- a/tvix/proto/evaluator.proto
+++ /dev/null
@@ -1,144 +0,0 @@
-// SPDX-License-Identifier: MIT
-// Copyright © 2021 The Tvix Authors
-syntax = "proto3";
-
-package tvix.proto.v1;
-
-service EvaluatorService {
-  rpc Evaluate(stream EvaluateRequest) returns (stream EvaluateResponse) {}
-}
-
-//
-// Message types for EvaluateRequest
-//
-
-message EvaluateFile {
-  // Absolute path at which the evaluator can find the file to be
-  // evaluated.
-  string file_path = 1;
-
-  // Optional attribute that should be evaluated within the file,
-  // assuming that the value it evaluates to is an attribute set.
-  optional string attribute = 2;
-
-  // Additional arguments to pass into the evaluation, with which the
-  // file's top-level function will be auto-called.
-  map<string, NixValue> arguments = 3;
-}
-
-message EvaluateExpression {
-  // Literal Nix expression to evaluate.
-  string expression = 1;
-
-  // Working directory in which the expression should be evaluated.
-  string working_directory = 2;
-}
-
-message BuildResultChunk {
-  string drv_hash = 1;
-  string output = 2;
-  bytes data = 3;
-
-  // This field may be set on the first build result chunk returned
-  // to the evaluator, indicating the total size of the output that
-  // is going to be streamed in bytes.
-  //
-  // If set, the evaluator can use this to appropriately allocate a
-  // buffer for the output.
-  optional int64 output_size = 4;
-}
-
-// Indicates that a single build has completed successfully. In case
-// that the build outputs were required by the evaluator this also
-// indicates that the output has been returned completely.
-message BuildSuccess {
-  string drv_hash = 1;
-  string output = 2;
-}
-
-// Describes an error that occured during a single build.
-//
-// TODO: We might want a more sophisticated error type.
-message BuildError {
-  string drv_hash = 1;
-  string output = 2;
-  string error = 3;
-}
-
-message BuildResult {
-  oneof build_result {
-    BuildSuccess build_success = 1;
-    BuildError build_error = 2;
-  }
-}
-
-
-/// Messages sent to the evaluator by the build coordinator.
-message EvaluateRequest {
-  oneof message {
-    // Ask the evaluator to evaluate the specified file, and
-    // optionally attribute within that file. Must be the first
-    // message.
-    EvaluateFile evaluate_file = 1;
-
-    // Ask the evaluator to evaluate the specified Nix expression.
-    // Must be the first message.
-    EvaluateExpression evaluate_expression = 2;
-
-    // Send the chunks of a build result, in response to a
-    // BuildRequest.
-    //
-    // Note: This message might change as the store protocol is
-    // designed, as it is possible that mechanisms for transferring
-    // files might be reused between the protocols.
-    BuildResultChunk build_result_chunk = 3;
-
-    // Indicate the result of a single build. See the documentation
-    // for the message types defined above for semantic details.
-    BuildResult build_result = 4;
-  }
-}
-
-//
-// Message types for EvaluateResponse
-//
-
-// TODO: Placeholder type.
-message Derivation {
-  string drv = 1;
-}
-
-// TODO: Placeholder type.
-message NixValue {
-  string value = 1;
-}
-
-// TODO: Placeholder type.
-message NixError {
-  string value = 1;
-}
-
-message BuildRequest {
-  Derivation drv = 1;
-  string output = 2;
-}
-
-// Messages returned to the coordinator by the evaluator.
-message EvaluateResponse {
-  oneof message {
-    // A derivation that was instantiated while reducing the graph,
-    // and whose output is not required by the evaluator.
-    Derivation derivation = 1;
-
-    // A derivation that was instantiated while reducing the graph,
-    // and whose output is required by the evaluator (IFD).
-    BuildRequest build_request = 2;
-
-    // The final value yielded by the evaluation. Stream is closed
-    // after this.
-    NixValue done = 3;
-
-    // Evaluation error. Stream is closed after this.
-    NixError error = 4;
-  }
-}