liboxen 0.9.4-beta3

Oxen is a fast, unstructured data version control, to help version datasets, written in Rust.
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use std::collections::HashMap;
use std::path::{Path, PathBuf};

use crate::api;

use crate::core::index::SchemaReader;
use crate::error::OxenError;
use crate::model::{LocalRepository, Schema};

pub fn list(
    repo: &LocalRepository,
    commit_id: Option<&str>,
) -> Result<HashMap<PathBuf, Schema>, OxenError> {
    if let Some(commit_id) = commit_id {
        if let Some(commit) = api::local::commits::commit_from_branch_or_commit_id(repo, commit_id)?
        {
            let schema_reader = SchemaReader::new(repo, &commit.id)?;
            schema_reader.list_schemas()
        } else {
            Err(OxenError::commit_id_does_not_exist(commit_id))
        }
    } else {
        let head_commit = api::local::commits::head_commit(repo)?;
        let schema_reader = SchemaReader::new(repo, &head_commit.id)?;
        schema_reader.list_schemas()
    }
}

pub fn list_from_ref(
    repo: &LocalRepository,
    revision: impl AsRef<str>,
    schema_ref: impl AsRef<str>,
) -> Result<HashMap<PathBuf, Schema>, OxenError> {
    let revision = revision.as_ref();
    let schema_ref = schema_ref.as_ref();
    if let Some(commit) = api::local::revisions::get(repo, revision)? {
        let schema_reader = SchemaReader::new(repo, &commit.id)?;
        schema_reader.list_schemas_for_ref(schema_ref)
    } else {
        Err(OxenError::revision_not_found(revision.into()))
    }
}

pub fn get_by_path(
    repo: &LocalRepository,
    path: impl AsRef<Path>,
) -> Result<Option<Schema>, OxenError> {
    let path = path.as_ref();
    let commit = api::local::commits::head_commit(repo)?;
    let schema_reader = SchemaReader::new(repo, &commit.id)?;
    schema_reader.get_schema_for_file(path)
}

/// Get a schema for a specific revision
pub fn get_by_path_from_ref(
    repo: &LocalRepository,
    revision: impl AsRef<str>,
    path: impl AsRef<Path>,
) -> Result<Option<Schema>, OxenError> {
    let revision = revision.as_ref();
    let path = path.as_ref();
    log::debug!("Getting schema for {:?} at revision {}", path, revision);
    if let Some(commit) = api::local::revisions::get(repo, revision)? {
        log::debug!("Got commit {:?} at revision {}", commit.id, revision);
        let schema_reader = SchemaReader::new(repo, &commit.id)?;
        schema_reader.get_schema_for_file(path)
    } else {
        Err(OxenError::revision_not_found(revision.into()))
    }
}