Use anyhow more idiomatically (#31052)

https://github.com/zed-industries/zed/issues/30972 brought up another
case where our context is not enough to track the actual source of the
issue: we get a general top-level error without inner error.

The reason for this was `.ok_or_else(|| anyhow!("failed to read HEAD
SHA"))?; ` on the top level.

The PR finally reworks the way we use anyhow to reduce such issues (or
at least make it simpler to bubble them up later in a fix).
On top of that, uses a few more anyhow methods for better readability.

* `.ok_or_else(|| anyhow!("..."))`, `map_err` and other similar error
conversion/option reporting cases are replaced with `context` and
`with_context` calls
* in addition to that, various `anyhow!("failed to do ...")` are
stripped with `.context("Doing ...")` messages instead to remove the
parasitic `failed to` text
* `anyhow::ensure!` is used instead of `if ... { return Err(...); }`
calls
* `anyhow::bail!` is used instead of `return Err(anyhow!(...));`

Release Notes:

- N/A
This commit is contained in:
Kirill Bulatov 2025-05-21 02:06:07 +03:00 committed by GitHub
parent 1e51a7ac44
commit 16366cf9f2
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
294 changed files with 2037 additions and 2610 deletions

View file

@ -3,7 +3,7 @@ use std::sync::Arc;
use std::sync::atomic::AtomicBool;
use std::time::Duration;
use anyhow::{Result, anyhow, bail};
use anyhow::{Context as _, Result, anyhow, bail};
use assistant_slash_command::{
ArgumentCompletion, SlashCommand, SlashCommandOutput, SlashCommandOutputSection,
SlashCommandResult,
@ -52,15 +52,16 @@ impl DocsSlashCommand {
.is_none()
{
let index_provider_deps = maybe!({
let workspace = workspace.clone().ok_or_else(|| anyhow!("no workspace"))?;
let workspace = workspace
.as_ref()
.context("no workspace")?
.upgrade()
.ok_or_else(|| anyhow!("workspace was dropped"))?;
.context("workspace dropped")?;
let project = workspace.read(cx).project().clone();
let fs = project.read(cx).fs().clone();
let cargo_workspace_root = Self::path_to_cargo_toml(project, cx)
.and_then(|path| path.parent().map(|path| path.to_path_buf()))
.ok_or_else(|| anyhow!("no Cargo workspace root found"))?;
.context("no Cargo workspace root found")?;
anyhow::Ok((fs, cargo_workspace_root))
});
@ -78,10 +79,11 @@ impl DocsSlashCommand {
.is_none()
{
let http_client = maybe!({
let workspace = workspace.ok_or_else(|| anyhow!("no workspace"))?;
let workspace = workspace
.as_ref()
.context("no workspace")?
.upgrade()
.ok_or_else(|| anyhow!("workspace was dropped"))?;
.context("workspace was dropped")?;
let project = workspace.read(cx).project().clone();
anyhow::Ok(project.read(cx).client().http_client())
});
@ -174,7 +176,7 @@ impl SlashCommand for DocsSlashCommand {
let args = DocsSlashCommandArgs::parse(arguments);
let store = args
.provider()
.ok_or_else(|| anyhow!("no docs provider specified"))
.context("no docs provider specified")
.and_then(|provider| IndexedDocsStore::try_global(provider, cx));
cx.background_spawn(async move {
fn build_completions(items: Vec<String>) -> Vec<ArgumentCompletion> {
@ -287,7 +289,7 @@ impl SlashCommand for DocsSlashCommand {
let task = cx.background_spawn({
let store = args
.provider()
.ok_or_else(|| anyhow!("no docs provider specified"))
.context("no docs provider specified")
.and_then(|provider| IndexedDocsStore::try_global(provider, cx));
async move {
let (provider, key) = match args.clone() {