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VSCode: Add
Scarb class and move Scarb's LS discovery there
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,94 @@ | ||
| import { spawn } from "child_process"; | ||
| import * as vscode from "vscode"; | ||
| import * as lc from "vscode-languageclient/node"; | ||
| import type { Context } from "./context"; | ||
|
|
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| let globalExecId = 0; | ||
|
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| export class Scarb { | ||
| public constructor( | ||
| /** | ||
| * The path to the Scarb binary on the local filesystem. | ||
| */ | ||
| public readonly path: string, | ||
| /** | ||
| * The exact Scarb binary used can vary depending on workspace configs, | ||
| * hence we associate workspace folder reference with the Scarb instance. | ||
| */ | ||
| public readonly workspaceFolder?: vscode.WorkspaceFolder | undefined, | ||
| ) {} | ||
|
|
||
| public languageServerExecutable(): lc.Executable { | ||
| const exec: lc.Executable = { | ||
| command: this.path, | ||
| args: ["cairo-language-server"], | ||
| }; | ||
|
|
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| const cwd = this.workspaceFolder?.uri.fsPath; | ||
| if (cwd != undefined) { | ||
| exec.options ??= {}; | ||
| exec.options.cwd = cwd; | ||
| } | ||
|
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| return exec; | ||
| } | ||
|
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| public hasCairoLS(ctx: Context): Promise<boolean> { | ||
| return this.hasCommand("cairo-language-server", ctx); | ||
| } | ||
|
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| private async hasCommand(command: string, ctx: Context): Promise<boolean> { | ||
| const output = await this.execWithOutput(["--json", "commands"], ctx); | ||
|
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| if (!output) { | ||
| return false; | ||
| } | ||
|
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| return output | ||
| .split("\n") | ||
| .map((v) => v.trim()) | ||
| .filter((v) => !!v) | ||
| .map((v) => JSON.parse(v)) | ||
| .some((commands: Record<string, unknown>) => !!commands[command]); | ||
| } | ||
|
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| private async execWithOutput( | ||
| args: readonly string[], | ||
| ctx: Context, | ||
| ): Promise<string> { | ||
| const execId = globalExecId++; | ||
|
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| ctx.log.trace(`scarb[${execId}]: ${this.path} ${args.join(" ")}`.trimEnd()); | ||
|
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| const child = spawn(this.path, args, { | ||
| stdio: "pipe", | ||
| cwd: this.workspaceFolder?.uri.fsPath, | ||
| }); | ||
|
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| let stdout = ""; | ||
| for await (const chunk of child.stdout) { | ||
| stdout += chunk; | ||
| } | ||
|
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| if (ctx.log.logLevel <= vscode.LogLevel.Trace) { | ||
| if (stdout.length > 0) { | ||
| for (const line of stdout.trimEnd().split("\n")) { | ||
| ctx.log.trace(`scarb[${execId}]:stdout: ${line}`); | ||
| } | ||
| } | ||
|
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| let stderr = ""; | ||
| for await (const chunk of child.stderr) { | ||
| stderr += chunk; | ||
| } | ||
|
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| if (stderr.length > 0) { | ||
| for (const line of stderr.trimEnd().split("\n")) { | ||
| ctx.log.trace(`scarb[${execId}]:stderr: ${line}`); | ||
| } | ||
| } | ||
| } | ||
|
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||
| return stdout; | ||
| } | ||
| } |