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conflicts: use an early return to reduce indentation

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Thanks to @ilyagr for the suggestion.
This commit is contained in:
Martin von Zweigbergk 2023-06-03 20:26:53 -07:00 committed by Martin von Zweigbergk
parent f4499aa65e
commit 9907cccf37
1 changed files with 74 additions and 69 deletions
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143
lib/src/conflicts.rs
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@ -464,77 +464,82 @@ pub fn update_conflict_from_content(
// further down.
let mut removed_content = vec![vec![]; conflict.removes().len()];
let mut added_content = vec![vec![]; conflict.adds().len()];
if let Some(hunks) = parse_conflict(content, conflict.removes().len(), conflict.adds().len()) {
for hunk in hunks {
match hunk {
MergeHunk::Resolved(slice) => {
for buf in &mut removed_content {
buf.extend_from_slice(&slice);
}
for buf in &mut added_content {
buf.extend_from_slice(&slice);
}
}
MergeHunk::Conflict(ConflictHunk { removes, adds }) => {
for (i, buf) in removes.iter().enumerate() {
removed_content[i].extend_from_slice(buf);
}
for (i, buf) in adds.iter().enumerate() {
added_content[i].extend_from_slice(buf);
}
}
}
}
// Now write the new files contents we found by parsing the file
// with conflict markers. Update the Conflict object with the new
// FileIds.
for (i, buf) in removed_content.iter().enumerate() {
match &conflict.removes()[i] {
Some(TreeValue::File { id: _, executable }) => {
let file_id = store.write_file(path, &mut buf.as_slice())?;
let new_value = TreeValue::File {
id: file_id,
executable: *executable,
};
conflict.set_remove(i, Some(new_value));
}
None if buf.is_empty() => {
// The missing side of a conflict is still represented by
// the empty string we materialized it as => nothing to do
}
_ => {
// The user edited a non-file side. This should never happen. We consider the
// conflict resolved for now.
return Ok(None);
}
}
}
for (i, buf) in added_content.iter().enumerate() {
match &conflict.adds()[i] {
Some(TreeValue::File { id: _, executable }) => {
let file_id = store.write_file(path, &mut buf.as_slice())?;
let new_value = TreeValue::File {
id: file_id,
executable: *executable,
};
conflict.set_add(i, Some(new_value));
}
None if buf.is_empty() => {
// The missing side of a conflict is still represented by
// the empty string we materialized it as => nothing to do
}
_ => {
// The user edited a non-file side. This should never happen. We consider the
// conflict resolved for now.
return Ok(None);
}
}
}
let new_conflict_id = store.write_conflict(path, &conflict.to_backend_conflict())?;
Ok(Some(new_conflict_id))
// TODO: Change to let-else once our MSRV is above 1.65
let hunks = if let Some(hunks) =
parse_conflict(content, conflict.removes().len(), conflict.adds().len())
{
hunks
} else {
Ok(None)
// Either there are no conflict markers of they don't have the expected arity
return Ok(None);
};
for hunk in hunks {
match hunk {
MergeHunk::Resolved(slice) => {
for buf in &mut removed_content {
buf.extend_from_slice(&slice);
}
for buf in &mut added_content {
buf.extend_from_slice(&slice);
}
}
MergeHunk::Conflict(ConflictHunk { removes, adds }) => {
for (i, buf) in removes.iter().enumerate() {
removed_content[i].extend_from_slice(buf);
}
for (i, buf) in adds.iter().enumerate() {
added_content[i].extend_from_slice(buf);
}
}
}
}
// Now write the new files contents we found by parsing the file
// with conflict markers. Update the Conflict object with the new
// FileIds.
for (i, buf) in removed_content.iter().enumerate() {
match &conflict.removes()[i] {
Some(TreeValue::File { id: _, executable }) => {
let file_id = store.write_file(path, &mut buf.as_slice())?;
let new_value = TreeValue::File {
id: file_id,
executable: *executable,
};
conflict.set_remove(i, Some(new_value));
}
None if buf.is_empty() => {
// The missing side of a conflict is still represented by
// the empty string we materialized it as => nothing to do
}
_ => {
// The user edited a non-file side. This should never happen. We consider the
// conflict resolved for now.
return Ok(None);
}
}
}
for (i, buf) in added_content.iter().enumerate() {
match &conflict.adds()[i] {
Some(TreeValue::File { id: _, executable }) => {
let file_id = store.write_file(path, &mut buf.as_slice())?;
let new_value = TreeValue::File {
id: file_id,
executable: *executable,
};
conflict.set_add(i, Some(new_value));
}
None if buf.is_empty() => {
// The missing side of a conflict is still represented by
// the empty string we materialized it as => nothing to do
}
_ => {
// The user edited a non-file side. This should never happen. We consider the
// conflict resolved for now.
return Ok(None);
}
}
}
let new_conflict_id = store.write_conflict(path, &conflict.to_backend_conflict())?;
Ok(Some(new_conflict_id))
}
#[cfg(test)]