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https://github.com/stablyai/orca.git
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Jinjing
256e0ef81a
- Gracefully fall back to file-name summaries when staged diffs exceed node/ssh execution maxBuffer limits, preventing generation failures. - Split oversized diffs by file and allocate budget via water-filling, ensuring single huge files do not starve smaller human changes. - Clip truncated diff sections on line boundaries to avoid half-lines.
84 lines
2.7 KiB
TypeScript
84 lines
2.7 KiB
TypeScript
import { cleanGeneratedCommitMessage, truncateDiffForPrompt } from './commit-message-prompt'
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import type { TuiAgent } from './types'
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export type CommitMessageDraftAgent = TuiAgent | 'custom'
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export type CommitMessageDraftContext = {
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branch: string | null
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stagedSummary: string
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stagedPatch: string
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}
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export type CommitMessageDraftOptions = {
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agentId: CommitMessageDraftAgent
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model: string
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thinkingLevel?: string
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customPrompt?: string
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customAgentCommand?: string
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}
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export type GeneratedCommitMessage = {
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subject: string
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body: string
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message: string
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}
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function limitSection(value: string, maxChars: number): string {
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if (value.length <= maxChars) {
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return value
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}
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const omitted = value.length - maxChars
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return `${value.slice(0, maxChars)}\n\n[truncated: ${omitted} characters omitted]`
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}
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export function buildCommitMessagePrompt(
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context: CommitMessageDraftContext,
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customPrompt: string
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): string {
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// Why: the staged patch is dropped when it's too large to read, so fall back to
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// the file summary and tell the agent why the diff is missing.
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const patch = context.stagedPatch.trim()
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? truncateDiffForPrompt(context.stagedPatch)
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: '(diff omitted — too large to read; infer the change from the staged file list above)'
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const base = [
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'You are generating a single git commit message.',
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'Return only the commit message text. Do not include a preamble, quotes, or code fences.',
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'',
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'Rules:',
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'- First line: imperative mood, <= 72 chars, no trailing period.',
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'- Optional body: blank line, then short wrapped bullet points or prose explaining WHY.',
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'- Capture the primary user-visible or developer-visible change.',
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'- Use only the staged changes below as context.',
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'- Do not include "Co-authored-by" or other git trailers.',
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'',
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`Branch: ${context.branch ?? '(detached)'}`,
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'',
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'Staged files:',
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limitSection(context.stagedSummary, 6_000),
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'',
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'Staged patch:',
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'```diff',
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patch,
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'```'
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].join('\n')
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const trimmedPrompt = customPrompt.trim()
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if (!trimmedPrompt) {
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return base
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}
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return [base, '', 'Additional user prompt:', limitSection(trimmedPrompt, 4_000)].join('\n')
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}
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export function splitGeneratedCommitMessage(message: string): GeneratedCommitMessage {
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const normalized = cleanGeneratedCommitMessage(message)
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const [subjectLine = '', ...bodyLines] = normalized.split('\n')
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const subject = subjectLine.trim().replace(/[.]+$/g, '').slice(0, 72).trimEnd()
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const body = bodyLines.join('\n').trim()
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const safeSubject = subject.length > 0 ? subject : 'Update project files'
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return {
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subject: safeSubject,
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body,
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message: body.length > 0 ? `${safeSubject}\n\n${body}` : safeSubject
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}
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}
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