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cli: make condition for committing working copy slightly smarter

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Before this patch, `jj log` would always commit the working copy and
most other commands would commit the working copy only if they were
passed a revset of exactly "@". This patch makes it so they all commit
the working copy unless they are passed just a symbol other than "@"
(typically a commit id). That means that we will not commit the
working copy if the user does `jj diff -r abc123`, but we will if they
do `jj diff -r :abc123`. It's clearly unnecessary in both those cases,
and we should fix, but this is probably good enough for now.
This commit is contained in:
Martin von Zweigbergk 2021-05-28 10:12:53 -07:00
parent 440a423b54
commit 11005ae9b8
1 changed files with 14 additions and 14 deletions
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28
src/commands.rs
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@ -259,22 +259,27 @@ impl RepoCommandHelper {
}
fn parse_revset(&mut self, revision_str: &str) -> Result<RevsetExpression, CommandError> {
// If we're looking up the working copy commit ("@"), make sure that it is up to
// date (the lib crate only looks at the checkout in the view).
// TODO: How do we generally figure out if a revset needs to commit the working
// copy? For example, ":@" should ideally not result in a new working copy
// commit, but "::@" should. "foo::" is probably also should, since we would
let expression = revset::parse(revision_str)?;
// If the revset is exactly "@", then we need to commit the working copy. If
// it's another symbol, then we don't. If it's more complex, then we do
// (just to be safe). TODO: Maybe make this smarter. How do we generally
// figure out if a revset needs to commit the working copy? For example,
// ":@" should perhaps not result in a new working copy commit, but
// "::@" should. "foo::" is probably also should, since we would
// otherwise need to evaluate the revset and see if "foo::" includes the
// parent of the current checkout. Other interesting cases include some kind of
// reference pointing to the working copy commit. If it's a
// type of reference that would get updated when the commit gets rewritten, then
// we probably should create a new working copy commit.
if revision_str == "@" && !self.working_copy_committed {
let mentions_checkout = match &expression {
RevsetExpression::Symbol(name) => name == "@",
_ => true,
};
if mentions_checkout && !self.working_copy_committed {
self.working_copy_committed = true;
self.commit_working_copy();
}
Ok(revset::parse(revision_str)?)
Ok(expression)
}
fn check_rewriteable(&self, commit: &Commit) -> Result<(), CommandError> {
@ -1217,18 +1222,13 @@ fn cmd_log(
) -> Result<(), CommandError> {
let mut repo_command = command.repo_helper(ui)?;
let use_graph = !sub_matches.is_present("no-graph");
if use_graph {
// Commit so the latest working copy is reflected in the view's checkout and
// visible heads
repo_command.commit_working_copy();
}
let revset_expression =
repo_command.parse_revset(sub_matches.value_of("revisions").unwrap())?;
let repo = repo_command.repo();
let revset = revset_expression.evaluate(repo.as_repo_ref())?;
let store = repo.store();
let use_graph = !sub_matches.is_present("no-graph");
let template_string = match sub_matches.value_of("template") {
Some(value) => value.to_string(),
None => {