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AD-324: Switch RO-Crate provenance export to a PROV-shaped model#262

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arjlai221 wants to merge 17 commits intomainfrom
AD-324-ro-create-mods-for-naerm-data-team
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AD-324: Switch RO-Crate provenance export to a PROV-shaped model#262
arjlai221 wants to merge 17 commits intomainfrom
AD-324-ro-create-mods-for-naerm-data-team

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@arjlai221 arjlai221 commented Apr 9, 2026

Torc RO-Crate Provenance Change Rationale

Decision

Torc now uses a PROV-shaped RO-Crate format as the canonical export and generation
model. I chose the breaking-change path because the assignment explicitly allowed it and because a
translation layer would have kept two provenance models alive at once.

That would have increased long-term cost in three ways:

  • every generator change would need a matching mapper change
  • every export/import path would need dual-format tests
  • provenance bugs would become harder to diagnose because the stored model and exported model would
    differ

Using the target model directly keeps Torc's stored entities, auto-generated metadata, and exported
ro-crate-metadata.json aligned.

Core Modifications

1. File provenance now uses the PROV-facing shape

Generated file entities now use:

  • @type: ["File", "prov:Entity"]
  • prov:wasGeneratedBy
  • prov:wasAttributedTo
  • prov:wasDerivedFrom

Removed torc:run_id because it was Torc-specific bookkeeping, not a provenance relationship in
the requested model.

2. Job provenance is modeled as PROV activities

Generated job entities now use:

  • @type: ["CreateAction", "prov:Activity"]
  • prov:hadPlan
  • isPartOf
  • prov:used
  • prov:wasAssociatedWith

This makes job execution records describe both the workflow plan they follow and the inputs they
consume, instead of only pointing at outputs.

3. Workflow-level provenance entities were added

Torc now creates:

  • #torc-workflow
  • #torc-run-{run_id}

These entities are necessary because the requested model refers to a workflow plan and a workflow
run explicitly. Without them, prov:hadPlan and run attribution would point to synthetic IDs that
did not exist as entities.

4. Software entities were aligned with the target model

Torc software records now use:

  • @type: ["SoftwareApplication", "prov:SoftwareAgent"]

That keeps Torc's own binaries compatible with both RO-Crate consumers and the data team's PROV
interpretation.

5. Export now preserves the richer stored metadata

The exporter no longer flattens stored metadata back to Torc's older shape. It now:

  • preserves stored @type arrays
  • keeps stored @id values when present
  • synthesizes #torc-workflow and #torc-run-{run_id} if older records do not already have them
  • adds localEvidenceGraph
  • emits a prov namespace in @context

This was important because switching the generators alone would not have been enough. The exported
crate had to look like the data team's example even when some metadata was entered manually or came
from older workflows.

6. Workflow export/import remapping still works

The import/export ID remapping logic was updated so job provenance references continue to remap when
entity IDs change. The key case here was switching from wasGeneratedBy to
prov:wasGeneratedBy.

Assumptions

These choices were made explicitly:

  • file lineage is derived from a job's declared input_file_ids
  • run attribution should be represented by #torc-run-{run_id}
  • the current Torc run_id is the right identifier to use for workflow-run provenance
  • workflow/run provenance entities should be created eagerly during input-file initialization and
    again during output generation so they stay present and current
  • software provenance should keep using Torc's existing binary discovery logic instead of adding a
    larger agent-model redesign

Why I Did Not Add a Mapping Layer

I did not keep the old storage model and export through a conversion layer because that would have
preserved internal semantics the data team explicitly does not want. A mapper would be useful only
if Torc still needed to support both formats as first-class outputs. That was not the assignment's
bias.

Why I Did Not Change the Database Schema

The database already stores RO-Crate metadata as JSON strings plus a few indexing fields
(workflow_id, file_id, entity_id, entity_type). That was already flexible enough for the
new model.

Changing the schema would not have improved provenance quality. It would only have increased risk
and migration cost for no practical gain.

Validation Status

Validated directly:

  • RO-Crate generator unit tests for file entities and CreateAction entities
  • workflow export/import unit tests for job-ID remapping
  • WSL build for the client/default-feature path

Partially blocked in this worktree:

  • full server-feature integration validation
  • end-to-end RO-Crate integration tests that require the feature-gated server binary path

Those failures were not caused by the RO-Crate logic itself. This workspace already has unrelated
server-feature build issues and test-harness assumptions about feature-gated binaries.

Known Follow-Ups

If this needs to be production-hardened further, the next useful follow-ups are:

  • decide whether workflow plan typing should remain SoftwareApplication + prov:Plan or move to a
    more domain-specific plan entity later
  • decide whether script-level agents should be auto-generated beyond Torc's own binaries

lai25 and others added 2 commits April 9, 2026 08:38
Adopt the data team's PROV-shaped RO-Crate metadata as Torc's
canonical generation and export format.

Update file, job, software, workflow, and run provenance entities to
use the new relationships and type arrays. Adjust export/import
remapping, refresh the RO-Crate docs, and add a rationale document
covering the design choices and assumptions behind the change.
@arjlai221 arjlai221 requested a review from daniel-thom April 9, 2026 16:43
@arjlai221 arjlai221 changed the title Ad 324 ro create mods for naerm data team AD-324: Switch RO-Crate provenance export to a PROV-shaped model Apr 13, 2026
lai25 added 3 commits April 13, 2026 11:09
Remove the accidentally committed tmp workspace files from the index
while keeping them on disk locally.

Keep /tmp in .gitignore so future scratch notes and examples stay
untracked by default.
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Pull request overview

This PR switches Torc’s RO-Crate provenance generation/export to a PROV-shaped model so stored metadata and exported ro-crate-metadata.json align with the requested PROV interpretation.

Changes:

  • Update generated File/CreateAction/Software entities to use PROV properties and @type arrays (e.g., prov:wasGeneratedBy, prov:Activity, prov:SoftwareAgent).
  • Add workflow-level provenance entities (#torc-workflow, #torc-run-{run_id}) and ensure export can synthesize them when missing.
  • Update tests and documentation to reflect the PROV-shaped RO-Crate output and access-group naming changes.

Reviewed changes

Copilot reviewed 14 out of 15 changed files in this pull request and generated 4 comments.

Show a summary per file
File Description
tests/test_workflow_export.rs Updates job-id remapping test to use prov:wasGeneratedBy and PROV @type arrays.
tests/test_auto_ro_crate.rs Adjusts auto-generation assertions for PROV-shaped metadata and synthetic workflow/run entities.
tests/test_access_groups.rs Renames “data-team” to “analytics-team” in tests and helper setup.
tests/common.rs Updates access-control fixture docs to reflect “Analytics team” naming.
src/server/api/ro_crate.rs Updates server-side input-file entity generation to PROV @type arrays and adds hashing/size fields; adds workflow provenance entity upsert logic.
src/client/workflow_manager.rs Creates workflow provenance entities during input-file initialization path.
src/client/ro_crate_utils.rs Shifts client-side entity builders to PROV shape; adds workflow plan/run entity builders and provenance links (prov:used, prov:wasDerivedFrom, etc.).
src/client/commands/workflow_export.rs Updates ID remapping tests/docs to remap prov:wasGeneratedBy.
src/client/commands/ro_crate.rs Changes export assembly to preserve stored @id/@type, synthesize workflow/run entities, add localEvidenceGraph, and emit PROV context.
docs/src/specialized/admin/access-groups-tutorial.md Renames “Data Team” to “Analytics Team” in the tutorial examples.
docs/src/core/how-to/ro-crate-metadata.md Updates how-to to describe PROV-shaped export and context array.
docs/src/core/concepts/ro-crate.md Updates conceptual docs for PROV-shaped entities and new provenance relationships.
.gitignore Ignores /tmp.
.github/workflows/lint.yml Ensures DATABASE_URL is set for the OpenAPI codegen parity test step.

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Comment thread src/server/api/ro_crate.rs Outdated
Comment on lines +215 to +222
if let Ok(meta) = std::fs::metadata(&file.path) {
metadata["contentSize"] = serde_json::json!(meta.len());
}

if let Some(hash) = compute_file_sha256(&file.path) {
metadata["sha256"] = serde_json::json!(hash);
}

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compute_file_sha256(&file.path) performs synchronous file I/O (open/read loop) inside an async server API method. For large inputs or slow storage this can block the async executor thread and impact request latency for other endpoints. Consider moving hashing (and possibly std::fs::metadata) into tokio::task::spawn_blocking, or making hashing optional / deferred so the API remains non-blocking.

Suggested change
if let Ok(meta) = std::fs::metadata(&file.path) {
metadata["contentSize"] = serde_json::json!(meta.len());
}
if let Some(hash) = compute_file_sha256(&file.path) {
metadata["sha256"] = serde_json::json!(hash);
}
let file_path = file.path.clone();
match tokio::task::spawn_blocking(move || {
let content_size = std::fs::metadata(&file_path).ok().map(|meta| meta.len());
let sha256 = compute_file_sha256(&file_path);
(content_size, sha256)
})
.await
{
Ok((Some(content_size), sha256)) => {
metadata["contentSize"] = serde_json::json!(content_size);
if let Some(hash) = sha256 {
metadata["sha256"] = serde_json::json!(hash);
}
}
Ok((None, sha256)) => {
if let Some(hash) = sha256 {
metadata["sha256"] = serde_json::json!(hash);
}
}
Err(e) => {
log::warn!(
"Failed to collect file metadata for '{}': {}",
file.path,
e
);
}
}

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This should be fixed.

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Actually, this is entirely invalid. The server does not have access to files. The client provides this information.

Comment on lines +331 to +343
pub fn find_entity_by_entity_id(
config: &Configuration,
workflow_id: i64,
entity_id: &str,
) -> Option<RoCrateEntityModel> {
match apis::ro_crate_entities_api::list_ro_crate_entities(
config,
workflow_id,
None,
None,
None,
None,
) {
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find_entity_by_entity_id calls list_ro_crate_entities and then scans the returned page for a match. Because this is used by create_or_update_entity_by_entity_id (and is called for every provenance entity upsert), it can fetch and deserialize up to MAX_RECORD_TRANSFER_COUNT entities repeatedly, which is expensive for workflows with many entities. Consider adding a server-side endpoint/query parameter to fetch by entity_id, or at least request a stable sort and paginate until the target is found so you can stop early.

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Tracked by #201 already.

Comment on lines +408 to +410
let run_entity =
build_workflow_run_entity(workflow_id, run_id, workflow_name, Utc::now(), None);
create_or_update_entity_by_entity_id(config, workflow_id, run_entity);
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create_workflow_provenance_entities always builds the run entity with Utc::now() as startTime and then updates the existing #torc-run-{run_id} entity if present. Since this function is called more than once (e.g., from job completion), the run's startTime will drift forward over time and no longer represent when the run actually started. Preserve an existing startTime on update (only set it when inserting), or pass an explicit run start timestamp captured once at run start.

Suggested change
let run_entity =
build_workflow_run_entity(workflow_id, run_id, workflow_name, Utc::now(), None);
create_or_update_entity_by_entity_id(config, workflow_id, run_entity);
let run_entity_id = format!("#torc-run-{}", run_id);
if find_entity_by_entity_id(config, workflow_id, &run_entity_id).is_none() {
let run_entity =
build_workflow_run_entity(workflow_id, run_id, workflow_name, Utc::now(), None);
create_or_update_entity_by_entity_id(config, workflow_id, run_entity);
}

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Comment thread src/client/commands/ro_crate.rs Outdated
"@context": [
"https://w3id.org/ro/crate/1.1/context",
{"torc": "https://github.com/NatLabRockies/torc/terms/"}
{"prov": "http://www.w3.org/ns/prov#"}
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The exported RO-Crate still includes Torc-specific terms in stored metadata (e.g., torc:git_hash from software entities), but @context no longer declares the torc prefix. This makes the JSON-LD context incomplete and can break consumers that expand/validate the graph. Include both prov and torc namespace mappings in @context (or remove/fully-qualify all torc: properties in emitted metadata).

Suggested change
{"prov": "http://www.w3.org/ns/prov#"}
{
"prov": "http://www.w3.org/ns/prov#",
"torc": "https://torc.dev/ns#"
}

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Comment thread src/client/job_runner.rs
Comment thread src/client/job_runner.rs
Comment on lines +1448 to +1458
crate::client::ro_crate_utils::create_workflow_provenance_entities(
&self.config,
self.workflow_id,
self.run_id,
&self.workflow.name,
);
crate::client::ro_crate_utils::create_software_entities(
&self.config,
self.workflow_id,
self.run_id,
);
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Can you explain what's happening here? You appear to be calling workflow-specific methods whenever individual jobs complete.

Comment thread src/server/api/ro_crate.rs Outdated
/// Creates or updates:
/// - `#torc-workflow` as the workflow plan entity
/// - `#torc-run-{run_id}` as the run activity entity
pub async fn create_workflow_provenance_entities(
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This function is never called.

Comment thread src/server/api/ro_crate.rs Outdated
Comment on lines +215 to +222
if let Ok(meta) = std::fs::metadata(&file.path) {
metadata["contentSize"] = serde_json::json!(meta.len());
}

if let Some(hash) = compute_file_sha256(&file.path) {
metadata["sha256"] = serde_json::json!(hash);
}

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Actually, this is entirely invalid. The server does not have access to files. The client provides this information.

Comment thread src/client/commands/ro_crate.rs Outdated
@@ -408,53 +419,130 @@ fn handle_export(
return;
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Do we need to reconsider returning here? We won't include all the info you're adding below.

Comment thread src/client/commands/ro_crate.rs Outdated
"@type": "Dataset",
"name": workflow_name,
"hasPart": has_part,
"localEvidenceGraph": { "@id": "provenance-graph.html" }
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What is this file?

Comment thread src/client/commands/ro_crate.rs Outdated
Some(current_min) if current_min <= start_time => Some(current_min),
_ => Some(start_time),
};
run_end_time = match run_end_time {
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The workflow run time will include all runs, including dead time. This could be confusing. I'm not sure that it provides value.

Comment thread src/client/commands/ro_crate.rs Outdated
.with_run_id(run_id)
.with_all_runs(true),
)
.unwrap_or_default();
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What happens on failure?


- **ML Team**: Alice and Bob work on machine learning workflows
- **Data Team**: Carol and Dave work on data processing workflows
- **Analytics Team**: Carol and Dave work on data processing workflows
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Why was this file changed?

Comment thread src/client/ro_crate_utils.rs Outdated
pub fn build_file_entity(
workflow_id: i64,
run_id: i64,
_run_id: i64,
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Should this parameter be removed?

@@ -0,0 +1,171 @@
# PR 262 Comment Response Report
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Doesn't belong in the repo.

@arjlai221 arjlai221 force-pushed the AD-324-ro-create-mods-for-naerm-data-team branch from 19fb680 to 0581f58 Compare April 21, 2026 01:22
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Pull request overview

Copilot reviewed 16 out of 17 changed files in this pull request and generated 3 comments.


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Comment thread tests/common.rs
Comment on lines +246 to +250
let status = Command::new("cargo")
.arg("build")
.arg("--workspace")
.status()
.expect("Failed to execute cargo build");
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cargo build --workspace here does not enable the server-bin and slurm-runner features, so the feature-gated binaries this test harness later spawns/validates (torc-server, torc-htpasswd, torc-slurm-job-runner) will not be built (see Cargo.toml [[bin]] required-features). Build with --features server-bin,slurm-runner (and ideally --bins) or reuse build_test_binaries()/ensure_test_binaries_built() to keep the binary build logic consistent.

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Why did you make this change? I agree with Copilot...reverting is better.

Comment thread tests/common.rs
build_test_binaries();
let status = Command::new("cargo")
.arg("build")
.arg("--workspace")
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Same issue as start_process: this cargo build --workspace invocation does not enable server-bin/slurm-runner, so ./target/debug/torc-server and ./target/debug/torc-htpasswd may not exist when the fixture tries to spawn them. Use cargo build --workspace --features server-bin,slurm-runner (optionally --bins) or call the shared build_test_binaries() helper.

Suggested change
.arg("--workspace")
.arg("--workspace")
.arg("--features")
.arg("server-bin,slurm-runner")

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Ditto

Comment thread tests/common.rs
Comment on lines 1546 to 1554
// Create each user with a strong password using torc-htpasswd add
// Use cost 4 (minimum) for fast test execution - cost 12 default takes ~250ms per hash
for user in users.iter() {
let status = Command::new(get_exe_path("./target/debug/torc-htpasswd"))
.arg("add")
.arg("--file")
.arg(&htpasswd_path)
.arg("--password")
.arg("correct horse battery staple")
.arg("--cost")
.arg("4")
.arg(user)
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torc-htpasswd add defaults to bcrypt cost 12 (per src/bin/torc-htpasswd.rs), which is intentionally slow and can add noticeable latency to access-control tests that create many users. Consider passing --cost 4 here (or another low test-only cost) to keep the integration suite fast.

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Why did you change this? I agree with Copilot. This needs to be reverted.

Comment thread src/client/default_api.rs
//! resource-specific modules, so this module preserves the old surface by
//! re-exporting the commonly used functions.

pub use crate::client::apis::access_control_api::{
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What are these changes for?

Comment thread tests/common.rs
Comment on lines +246 to +250
let status = Command::new("cargo")
.arg("build")
.arg("--workspace")
.status()
.expect("Failed to execute cargo build");
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Why did you make this change? I agree with Copilot...reverting is better.

Comment thread tests/common.rs
let created_workflow = apis::workflows_api::create_workflow(config, workflow)
.expect("Failed to create test workflow");
let created_workflow =
default_api::create_workflow(config, workflow).expect("Failed to create test workflow");
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I think the original is more clear. I don't want to have to import all new methods into default_api going forward.

Comment thread tests/common.rs
Comment on lines 1546 to 1554
// Create each user with a strong password using torc-htpasswd add
// Use cost 4 (minimum) for fast test execution - cost 12 default takes ~250ms per hash
for user in users.iter() {
let status = Command::new(get_exe_path("./target/debug/torc-htpasswd"))
.arg("add")
.arg("--file")
.arg(&htpasswd_path)
.arg("--password")
.arg("correct horse battery staple")
.arg("--cost")
.arg("4")
.arg(user)
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Why did you change this? I agree with Copilot. This needs to be reverted.

Comment thread tests/common.rs
build_test_binaries();
let status = Command::new("cargo")
.arg("build")
.arg("--workspace")
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Ditto

// =========================================================================

// Test status command - this should work for authorized users
let report_output = run_cli_command_with_auth(
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Why did you delete this?


use rstest::rstest;
use torc::client::{Configuration, apis};
use torc::client::{Configuration, default_api};
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Did you need to change this file for the RO-crate spec change?

let owner_config = config_with_auth(config, "some_owner");
let workflow_name = format!("revoke-test-workflow-{}", unique_suffix());
let workflow = create_workflow_with_user(&owner_config, &workflow_name, "some_owner");
let workflow = create_workflow_with_user(&owner_config, "revoke-test-workflow", "some_owner");
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The original code used unique_suffix to ensure uniqueness. Why did you change it?

Comment thread .gitignore
.mcp.json
.dprint-cache/
/tmp
/reviews No newline at end of file
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All files must end with a newline character. Not sure why there isn't linting guard...please fix and ensure your editor is configured to do that.

serde_json::json!({ "@id": id.as_ref() })
}

fn typed_entity(primary_type: &str, prov_type: &str) -> serde_json::Value {
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This is duplicated in src/server/api/ro_crate.rs

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3 participants