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Make CSV parsing and polars optional (but default) #1

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Make CSV parsing and polars optional (but default) #1

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31b5392
Make CSV parsing and polars optional (but default)
cgevans Apr 20, 2026
6fdcd67
Bump ndarray to 0.17
cgevans Apr 20, 2026
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8 changes: 6 additions & 2 deletions crates/coffee/Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -3,10 +3,14 @@ name = "coffee"
version = "0.1.0"
edition = "2021"

[features]
default = ["file-input"]
file-input = ["dep:polars"]

[dependencies]
ndarray = { version = "0.16.1", features = ["rayon"] }
ndarray = { version = "0.17", features = ["rayon"] }
csv = "1.1.6"
polars = { version = "0.23.2", features = ["csv-file"] }
polars = { version = "0.23.2", features = ["csv-file"], optional = true }
nalgebra = "0.33.2"
chrono = "0.4"
approx = "0.5.1"
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15 changes: 15 additions & 0 deletions crates/coffee/src/lib.rs
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Original file line number Diff line number Diff line change
@@ -1,24 +1,37 @@
pub mod extras;
#[cfg(feature = "file-input")]
pub mod fileparse;
pub mod format;
pub mod optimize;
pub mod steihaug;

#[cfg(feature = "file-input")]
use std::fs::File;
#[cfg(feature = "file-input")]
use std::io::Read;

#[cfg(feature = "file-input")]
use extras::{OptimizerArgs, OptimizerResults};
#[cfg(feature = "file-input")]
use fileparse::{parse_float, read_inputs_to_dataframe};
#[cfg(feature = "file-input")]
use format::results_message;
#[cfg(feature = "file-input")]
use ndarray::{Array1, Array2};
#[cfg(feature = "file-input")]
use optimize::Optimizer;

#[cfg(feature = "file-input")]
use core::result::Result;
#[cfg(feature = "file-input")]
use std::error::Error;
#[cfg(feature = "file-input")]
use std::io::Write;

#[cfg(feature = "file-input")]
use polars::prelude::DataType;

#[cfg(feature = "file-input")]
fn run_coffee_computation(
cfe_bytes: &[u8],
con_bytes: &[u8],
Expand Down Expand Up @@ -78,6 +91,7 @@ fn run_coffee_computation(
Ok(optimizer.get_results())
}

#[cfg(feature = "file-input")]
pub fn run_coffee_server(cfe_bytes: &[u8], con_bytes: &[u8]) -> Result<String, Box<dyn Error>> {
let args = OptimizerArgs {
use_terminal: true, // print to logs for websocket version
Expand All @@ -95,6 +109,7 @@ pub fn run_coffee_server(cfe_bytes: &[u8], con_bytes: &[u8]) -> Result<String, B
Ok(results_message(&optimizer_results))
}

#[cfg(feature = "file-input")]
pub fn run_coffee(
file_path_cfe: &str,
file_path_con: &str,
Expand Down