Struct FilePatch 

pub struct FilePatch {
    filename: String,
    header_row: Option<Vec<String>>,
    replacement_content: Option<String>,
    to_delete: IndexSet<Vec<String>>,
    to_add: IndexSet<Vec<String>>,
}

Structure to hold patches for a model csv file.

Fields

filename: String

The file that this patch applies to (e.g. “agents.csv”)

header_row: Option<Vec<String>>

The header row (optional). If None, the header is not checked against base files.

replacement_content: Option<String>

Full replacement content for this file (optional)

to_delete: IndexSet<Vec<String>>

Rows to delete (each row is a vector of fields)

to_add: IndexSet<Vec<String>>

Rows to add (each row is a vector of fields)

Implementations

impl FilePatch

pub fn new(filename: impl Into<String>) -> Self

Create a new empty Patch for the given file.

pub fn with_header(self, header: impl Into<String>) -> Self

Set the header row for this patch (header should be a comma-joined string, e.g. “a,b,c”).

pub fn with_replacement(self, lines: &[&str]) -> Self

Set full replacement content for this file from a slice of lines.

Each line is joined with newlines, and a trailing newline is added. All lines must have the same number of columns (commas). Example: with_replacement(&["header1,header2", "value1,value2"])

pub fn with_addition(self, row: impl Into<String>) -> Self

Add a row to the patch (row should be a comma-joined string, e.g. “a,b,c”).

pub fn with_deletion(self, row: impl Into<String>) -> Self

Mark a row for deletion from the base (row should be a comma-joined string, e.g. “a,b,c”).

fn apply(&self, base_model_dir: &Path) -> Result<String>

Apply this patch to a base model and return the modified CSV as a string.

pub fn apply_and_save( &self, base_model_dir: &Path, out_model_dir: &Path, ) -> Result<()>

Apply this patch to a base model and save the modified CSV to another directory.

Trait Implementations

impl Clone for FilePatch

fn clone(&self) -> FilePatch

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.