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Variables: an import or library load that changes nothing adds no undo step

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dataset.import and variable.loadLibrary added an undo step, cleared Redo
and marked a saved document modified even when the variables and data
sets came out as they were, such as the same CSV or library loaded
again. Both now build the new variables on a copy and record a step only
when it differs. variable.loadLibrary's params text and docs/mcp.md say
so.
This commit is contained in:
dotCooCoo
2026-11-02 12:03:45 +07:00
committed by bflatastic
parent d0749dde41
commit a6ce22da5c
5 changed files with 89 additions and 24 deletions
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crates/engine/src/cmd/variablecmds/csv.rs
+19 -14
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@@ -324,21 +324,26 @@ pub(super) fn dataset_import(s: &mut Session, p: &Value) -> Result<Value> {
}
let names: Vec<String> = parsed.iter().map(|d| d.name.clone()).collect();
let new_variables: Vec<String> = defined.iter().map(|v| v.name.clone()).collect();
let (imported, updated) = s.edit("Import Data Sets", |d, _| {
d.variables.variables.extend(defined);
let mut imported = 0usize;
let mut updated = 0usize;
for row in parsed {
if let Some(existing) = d.variables.datasets.iter_mut().find(|x| x.name == row.name) {
*existing = row;
updated += 1;
} else {
d.variables.datasets.push(row);
imported += 1;
}
let mut vars = s.doc()?.doc.variables.clone();
vars.variables.extend(defined);
let (mut imported, mut updated) = (0usize, 0usize);
for row in parsed {
if let Some(existing) = vars.datasets.iter_mut().find(|x| x.name == row.name) {
*existing = row;
updated += 1;
} else {
vars.datasets.push(row);
imported += 1;
}
Ok((imported, updated))
})?;
}
// The import is one undo step, and an import that leaves the variables and data sets as they
// were adds none.
if vars != s.doc()?.doc.variables {
s.edit("Import Data Sets", |d, _| {
d.variables = vars;
Ok(())
})?;
}
Ok(json!({"imported": imported, "updated": updated, "names": names, "defined": new_variables}))
}