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chore(tvix/proto): drop evaluator.proto

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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
This commit is contained in:
Florian Klink 2023-12-09 15:51:15 +02:00 committed by clbot
parent 1cc3e9c1a8
commit 6025be423a
2 changed files with 0 additions and 165 deletions
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21
tvix/proto/LICENSE
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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.

144
tvix/proto/evaluator.proto
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// 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;
}
}