vscode: add linting diagnostics (#571)

Author: sbdchd

Cargo.lock

@@ -36,6 +36,8 @@ rowan = "0.15.15"
 smol_str = "0.3.2"
 enum-iterator = "2.1.0"
 line-index = "0.1.2"
+lsp-server = "0.7.8"
+lsp-types = "0.95"
 serde-wasm-bindgen = "0.6.5"
 wasm-bindgen = "0.2.100"
 wasm-bindgen-test = "0.3.34"
@@ -57,6 +59,7 @@ squawk_lexer = { version = "0.0.0", path = "./crates/squawk_lexer" }
 squawk_parser = { version = "0.0.0", path = "./crates/squawk_parser" }
 squawk_syntax = { version = "0.0.0", path = "./crates/squawk_syntax" }
 squawk_linter = { version = "0.0.0", path = "./crates/squawk_linter" }
+squawk_server = { version = "0.0.0", path = "./crates/squawk_server" }
 
 [workspace.lints.clippy]
 collapsible_else_if = "allow"

Cargo.toml

@@ -30,11 +30,14 @@ squawk_syntax.workspace = true
 squawk_linter.workspace = true
 squawk_lexer.workspace = true
 squawk_github.workspace = true
+squawk_server.workspace = true
 toml.workspace = true
 glob.workspace = true
 anyhow.workspace = true
 annotate-snippets.workspace = true
 line-index.workspace = true
+lsp-server.workspace = true
+lsp-types.workspace = true
 
 [dev-dependencies]
 insta.workspace = true

crates/squawk/Cargo.toml

@@ -1,4 +1,4 @@
-use crate::Command;
+use crate::UploadToGithubArgs;
 use crate::config::Config;
 use crate::reporter::{CheckReport, fmt_tty_violation};
 use crate::{file_finding::find_paths, reporter::check_files};
@@ -69,7 +69,7 @@ fn create_gh_app(
 const COMMENT_HEADER: &str = "# Squawk Report";
 
 pub fn check_and_comment_on_pr(
-    cmd: Command,
+    args: UploadToGithubArgs,
     cfg: &Config,
     is_stdin: bool,
     stdin_path: Option<String>,
@@ -78,7 +78,7 @@ pub fn check_and_comment_on_pr(
     pg_version: Option<Version>,
     assume_in_transaction: bool,
 ) -> Result<()> {
-    let Command::UploadToGithub {
+    let UploadToGithubArgs {
         paths,
         fail_on_violations,
         github_private_key,
@@ -89,7 +89,7 @@ pub fn check_and_comment_on_pr(
         github_repo_name,
         github_pr_number,
         github_private_key_base64,
-    } = cmd;
+    } = args;
 
     let fail_on_violations =
         if let Some(fail_on_violations_cfg) = cfg.upload_to_github.fail_on_violations {