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-rw-r--r--tvix/build-go/build.pb.go16
-rw-r--r--tvix/build/protos/build.proto16
2 files changed, 28 insertions, 4 deletions
diff --git a/tvix/build-go/build.pb.go b/tvix/build-go/build.pb.go
index acd58b37375c..96fc09d3640f 100644
--- a/tvix/build-go/build.pb.go
+++ b/tvix/build-go/build.pb.go
@@ -68,7 +68,7 @@ type BuildRequest struct {
 	// time of the build.
 	// As root nodes are content-addressed, no additional signatures are needed
 	// to substitute / make these available in the build environment.
-	// Inputs are sorted by their names.
+	// Inputs MUST be sorted by their names.
 	Inputs []*castore_go.Node `protobuf:"bytes,1,rep,name=inputs,proto3" json:"inputs,omitempty"`
 	// The command (and its args) executed as the build script.
 	// In the case of a Nix derivation, this is usually
@@ -76,19 +76,26 @@ type BuildRequest struct {
 	CommandArgs []string `protobuf:"bytes,2,rep,name=command_args,json=commandArgs,proto3" json:"command_args,omitempty"`
 	// The working dir of the command, relative to the build root.
 	// "build", in the case of Nix.
+	// This MUST be a clean relative path, without any ".", "..", or superfluous
+	// slashes.
 	WorkingDir string `protobuf:"bytes,3,opt,name=working_dir,json=workingDir,proto3" json:"working_dir,omitempty"`
 	// A list of "scratch" paths, relative to the build root.
 	// These will be write-able during the build.
 	// [build, nix/store] in the case of Nix.
+	// These MUST be clean relative paths, without any ".", "..", or superfluous
+	// slashes, and sorted.
 	ScratchPaths []string `protobuf:"bytes,4,rep,name=scratch_paths,json=scratchPaths,proto3" json:"scratch_paths,omitempty"`
 	// The path where the castore input nodes will be located at,
 	// "/nix/store" in case of Nix.
 	// Builds might also write into here (Nix builds do that).
+	// This MUST be a clean relative path, without any ".", "..", or superfluous
+	// slashes.
 	InputsDir string `protobuf:"bytes,5,opt,name=inputs_dir,json=inputsDir,proto3" json:"inputs_dir,omitempty"`
 	// The list of output paths the build is expected to produce,
 	// relative to the root.
 	// If the path is not produced, the build is considered to have failed.
-	// Outputs are sorted.
+	// These MUST be clean relative paths, without any ".", "..", or superfluous
+	// slashes, and sorted.
 	Outputs []string `protobuf:"bytes,6,rep,name=outputs,proto3" json:"outputs,omitempty"`
 	// The list of environment variables and their values that should be set
 	// inside the build environment.
@@ -269,6 +276,7 @@ type BuildRequest_EnvVar struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
+	// name of the environment variable. Must not contain =.
 	Key   string `protobuf:"bytes,1,opt,name=key,proto3" json:"key,omitempty"`
 	Value []byte `protobuf:"bytes,2,opt,name=value,proto3" json:"value,omitempty"`
 }
@@ -330,12 +338,16 @@ type BuildRequest_BuildConstraints struct {
 	unknownFields protoimpl.UnknownFields
 
 	// The system that's needed to execute the build.
+	// Must not be empty.
 	System string `protobuf:"bytes,1,opt,name=system,proto3" json:"system,omitempty"`
 	// The amount of memory required to be available for the build, in bytes.
 	MinMemory uint64 `protobuf:"varint,2,opt,name=min_memory,json=minMemory,proto3" json:"min_memory,omitempty"`
 	// A list of (absolute) paths that need to be available in the build
 	// environment, like `/dev/kvm`.
 	// This is distinct from the castore nodes in inputs.
+	// TODO: check if these should be individual constraints instead.
+	// These MUST be clean absolute paths, without any ".", "..", or superfluous
+	// slashes, and sorted.
 	AvailableRoPaths []string `protobuf:"bytes,3,rep,name=available_ro_paths,json=availableRoPaths,proto3" json:"available_ro_paths,omitempty"`
 	// Whether the build should be able to access the network,
 	NetworkAccess bool `protobuf:"varint,4,opt,name=network_access,json=networkAccess,proto3" json:"network_access,omitempty"`
diff --git a/tvix/build/protos/build.proto b/tvix/build/protos/build.proto
index f6c62b877431..733636d2221c 100644
--- a/tvix/build/protos/build.proto
+++ b/tvix/build/protos/build.proto
@@ -49,7 +49,7 @@ message BuildRequest {
   // time of the build.
   // As root nodes are content-addressed, no additional signatures are needed
   // to substitute / make these available in the build environment.
-  // Inputs are sorted by their names.
+  // Inputs MUST be sorted by their names.
   repeated tvix.castore.v1.Node inputs = 1;
 
   // The command (and its args) executed as the build script.
@@ -59,22 +59,29 @@ message BuildRequest {
 
   // The working dir of the command, relative to the build root.
   // "build", in the case of Nix.
+  // This MUST be a clean relative path, without any ".", "..", or superfluous
+  // slashes.
   string working_dir = 3;
 
   // A list of "scratch" paths, relative to the build root.
   // These will be write-able during the build.
   // [build, nix/store] in the case of Nix.
+  // These MUST be clean relative paths, without any ".", "..", or superfluous
+  // slashes, and sorted.
   repeated string scratch_paths = 4;
 
   // The path where the castore input nodes will be located at,
   // "/nix/store" in case of Nix.
   // Builds might also write into here (Nix builds do that).
+  // This MUST be a clean relative path, without any ".", "..", or superfluous
+  // slashes.
   string inputs_dir = 5;
 
   // The list of output paths the build is expected to produce,
   // relative to the root.
   // If the path is not produced, the build is considered to have failed.
-  // Outputs are sorted.
+  // These MUST be clean relative paths, without any ".", "..", or superfluous
+  // slashes, and sorted.
   repeated string outputs = 6;
 
   // The list of environment variables and their values that should be set
@@ -90,6 +97,7 @@ message BuildRequest {
   repeated EnvVar environment_vars = 7;
 
   message EnvVar {
+    // name of the environment variable. Must not contain =.
     string key = 1;
     bytes value = 2;
   }
@@ -105,6 +113,7 @@ message BuildRequest {
   // wouldn't be hermetic enough - see the comment around inputs too.
   message BuildConstraints {
     // The system that's needed to execute the build.
+    // Must not be empty.
     string system = 1;
 
     // The amount of memory required to be available for the build, in bytes.
@@ -113,6 +122,9 @@ message BuildRequest {
     // A list of (absolute) paths that need to be available in the build
     // environment, like `/dev/kvm`.
     // This is distinct from the castore nodes in inputs.
+    // TODO: check if these should be individual constraints instead.
+    // These MUST be clean absolute paths, without any ".", "..", or superfluous
+    // slashes, and sorted.
     repeated string available_ro_paths = 3;
 
     // Whether the build should be able to access the network,