Do not panic when looking for prettier (#3182)

Fixes
https://zed-industries.slack.com/archives/C04S6T1T7TQ/p1698655595438009

Instead of checking FS, derive the prettier path needed and let prettier
invocation fail in logs instead.
This commit is contained in:
Kirill Bulatov 2023-10-30 12:58:47 +02:00 committed by GitHub
commit 6aca2289eb
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@ -67,91 +67,39 @@ impl Prettier {
starting_path: Option<LocateStart>,
fs: Arc<dyn Fs>,
) -> anyhow::Result<PathBuf> {
fn is_node_modules(path_component: &std::path::Component<'_>) -> bool {
path_component.as_os_str().to_string_lossy() == "node_modules"
}
let paths_to_check = match starting_path.as_ref() {
Some(starting_path) => {
let worktree_root = starting_path
.worktree_root_path
.components()
.into_iter()
.take_while(|path_component| {
path_component.as_os_str().to_string_lossy() != "node_modules"
})
.take_while(|path_component| !is_node_modules(path_component))
.collect::<PathBuf>();
if worktree_root != starting_path.worktree_root_path.as_ref() {
vec![worktree_root]
} else {
let (worktree_root_metadata, start_path_metadata) = if starting_path
.starting_path
.as_ref()
== Path::new("")
{
let worktree_root_data =
fs.metadata(&worktree_root).await.with_context(|| {
format!(
"FS metadata fetch for worktree root path {worktree_root:?}",
)
})?;
(worktree_root_data.unwrap_or_else(|| {
panic!("cannot query prettier for non existing worktree root at {worktree_root:?}")
}), None)
if starting_path.starting_path.as_ref() == Path::new("") {
worktree_root
.parent()
.map(|path| vec![path.to_path_buf()])
.unwrap_or_default()
} else {
let full_starting_path = worktree_root.join(&starting_path.starting_path);
let (worktree_root_data, start_path_data) = futures::try_join!(
fs.metadata(&worktree_root),
fs.metadata(&full_starting_path),
)
.with_context(|| {
format!("FS metadata fetch for starting path {full_starting_path:?}",)
})?;
(
worktree_root_data.unwrap_or_else(|| {
panic!("cannot query prettier for non existing worktree root at {worktree_root:?}")
}),
start_path_data,
)
};
match start_path_metadata {
Some(start_path_metadata) => {
anyhow::ensure!(worktree_root_metadata.is_dir,
"For non-empty start path, worktree root {starting_path:?} should be a directory");
anyhow::ensure!(
!start_path_metadata.is_dir,
"For non-empty start path, it should not be a directory {starting_path:?}"
);
anyhow::ensure!(
!start_path_metadata.is_symlink,
"For non-empty start path, it should not be a symlink {starting_path:?}"
);
let file_to_format = starting_path.starting_path.as_ref();
let mut paths_to_check = VecDeque::from(vec![worktree_root.clone()]);
let mut current_path = worktree_root;
for path_component in file_to_format.components().into_iter() {
current_path = current_path.join(path_component);
paths_to_check.push_front(current_path.clone());
if path_component.as_os_str().to_string_lossy() == "node_modules" {
break;
}
let file_to_format = starting_path.starting_path.as_ref();
let mut paths_to_check = VecDeque::new();
let mut current_path = worktree_root;
for path_component in file_to_format.components().into_iter() {
let new_path = current_path.join(path_component);
let old_path = std::mem::replace(&mut current_path, new_path);
paths_to_check.push_front(old_path);
if is_node_modules(&path_component) {
break;
}
paths_to_check.pop_front(); // last one is the file itself or node_modules, skip it
Vec::from(paths_to_check)
}
None => {
anyhow::ensure!(
!worktree_root_metadata.is_dir,
"For empty start path, worktree root should not be a directory {starting_path:?}"
);
anyhow::ensure!(
!worktree_root_metadata.is_symlink,
"For empty start path, worktree root should not be a symlink {starting_path:?}"
);
worktree_root
.parent()
.map(|path| vec![path.to_path_buf()])
.unwrap_or_default()
}
Vec::from(paths_to_check)
}
}
}