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feat: add base_branch input to specify source branch for new Claude branches (#72)

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* feat: add base_branch input to specify source branch for new Claude branches

- Add base_branch input parameter to action.yml allowing users to specify which branch to use as source
- Update setupBranch function to accept and use the base branch parameter  
- Defaults to repository default branch if no base branch is specified
- Addresses issue #62 for better branch control

Co-authored-by: ashwin-ant <ashwin-ant@users.noreply.github.com>

* perf: optimize setupBranch to avoid unnecessary default branch fetch

Only fetch repository default branch when actually needed:
- Skip initial fetch when baseBranch is provided
- Fetch default branch at end only for return value and GitHub Actions output
- Eliminates unnecessary API call when users specify base branch

Co-authored-by: ashwin-ant <ashwin-ant@users.noreply.github.com>

* fix: properly handle base branch throughout the action workflow

- Fix TypeScript error where defaultBranch was used before being assigned
- Replace DEFAULT_BRANCH with BASE_BRANCH in subsequent workflow steps
- Update PR creation and branch comparison to use the actual base branch
- Ensure custom base_branch input is respected in all operations

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

* refactor: move BASE_BRANCH env reading into parseGitHubContext

- Move BASE_BRANCH environment variable reading into parseGitHubContext for consistency
- Update setupBranch to use context.inputs.baseBranch instead of process.env
- Fix test descriptions to correctly reference BASE_BRANCH instead of DEFAULT_BRANCH
- Update test environment setup to use BASE_BRANCH

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

---------

Co-authored-by: claude[bot] <209825114+claude[bot]@users.noreply.github.com>
Co-authored-by: ashwin-ant <ashwin-ant@users.noreply.github.com>
Co-authored-by: Claude <noreply@anthropic.com>
This commit is contained in:
Ashwin Bhat
2025-05-29 10:08:00 -07:00
committed by GitHub
parent 03e5dcc3a1
commit fcbdac91f2
10 changed files with 92 additions and 73 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
src/create-prompt/index.ts
View File

@@ -86,7 +86,7 @@ export function buildDisallowedToolsString(
export function prepareContext(
context: ParsedGitHubContext,
claudeCommentId: string,
defaultBranch?: string,
baseBranch?: string,
claudeBranch?: string,
): PreparedContext {
const repository = context.repository.full_name;
@@ -164,7 +164,7 @@ export function prepareContext(
...(commentId && { commentId }),
commentBody,
...(claudeBranch && { claudeBranch }),
...(defaultBranch && { defaultBranch }),
...(baseBranch && { baseBranch }),
};
break;
@@ -186,7 +186,7 @@ export function prepareContext(
prNumber,
commentBody,
...(claudeBranch && { claudeBranch }),
...(defaultBranch && { defaultBranch }),
...(baseBranch && { baseBranch }),
};
break;
@@ -211,13 +211,13 @@ export function prepareContext(
prNumber,
commentBody,
...(claudeBranch && { claudeBranch }),
...(defaultBranch && { defaultBranch }),
...(baseBranch && { baseBranch }),
};
break;
} else if (!claudeBranch) {
throw new Error("CLAUDE_BRANCH is required for issue_comment event");
} else if (!defaultBranch) {
throw new Error("DEFAULT_BRANCH is required for issue_comment event");
} else if (!baseBranch) {
throw new Error("BASE_BRANCH is required for issue_comment event");
} else if (!issueNumber) {
throw new Error(
"ISSUE_NUMBER is required for issue_comment event for issues",
@@ -229,7 +229,7 @@ export function prepareContext(
commentId,
isPR: false,
claudeBranch: claudeBranch,
defaultBranch,
baseBranch,
issueNumber,
commentBody,
};
@@ -245,8 +245,8 @@ export function prepareContext(
if (isPR) {
throw new Error("IS_PR must be false for issues event");
}
if (!defaultBranch) {
throw new Error("DEFAULT_BRANCH is required for issues event");
if (!baseBranch) {
throw new Error("BASE_BRANCH is required for issues event");
}
if (!claudeBranch) {
throw new Error("CLAUDE_BRANCH is required for issues event");
@@ -263,7 +263,7 @@ export function prepareContext(
eventAction: "assigned",
isPR: false,
issueNumber,
defaultBranch,
baseBranch,
claudeBranch,
assigneeTrigger,
};
@@ -273,7 +273,7 @@ export function prepareContext(
eventAction: "opened",
isPR: false,
issueNumber,
defaultBranch,
baseBranch,
claudeBranch,
};
} else {
@@ -294,7 +294,7 @@ export function prepareContext(
isPR: true,
prNumber,
...(claudeBranch && { claudeBranch }),
...(defaultBranch && { defaultBranch }),
...(baseBranch && { baseBranch }),
};
break;
@@ -541,13 +541,13 @@ ${context.directPrompt ? ` - DIRECT INSTRUCTION: A direct instruction was prov
${
eventData.claudeBranch
? `- Provide a URL to create a PR manually in this format:
[Create a PR](${GITHUB_SERVER_URL}/${context.repository}/compare/${eventData.defaultBranch}...<branch-name>?quick_pull=1&title=<url-encoded-title>&body=<url-encoded-body>)
[Create a PR](${GITHUB_SERVER_URL}/${context.repository}/compare/${eventData.baseBranch}...<branch-name>?quick_pull=1&title=<url-encoded-title>&body=<url-encoded-body>)
- IMPORTANT: Use THREE dots (...) between branch names, not two (..)
Example: ${GITHUB_SERVER_URL}/${context.repository}/compare/main...feature-branch (correct)
NOT: ${GITHUB_SERVER_URL}/${context.repository}/compare/main..feature-branch (incorrect)
- IMPORTANT: Ensure all URL parameters are properly encoded - spaces should be encoded as %20, not left as spaces
Example: Instead of "fix: update welcome message", use "fix%3A%20update%20welcome%20message"
- The target-branch should be '${eventData.defaultBranch}'.
- The target-branch should be '${eventData.baseBranch}'.
- The branch-name is the current branch: ${eventData.claudeBranch}
- The body should include:
- A clear description of the changes
@@ -632,7 +632,7 @@ f. If you are unable to complete certain steps, such as running a linter or test
export async function createPrompt(
claudeCommentId: number,
defaultBranch: string | undefined,
baseBranch: string | undefined,
claudeBranch: string | undefined,
githubData: FetchDataResult,
context: ParsedGitHubContext,
@@ -641,7 +641,7 @@ export async function createPrompt(
const preparedContext = prepareContext(
context,
claudeCommentId.toString(),
defaultBranch,
baseBranch,
claudeBranch,
);

14
src/create-prompt/types.ts
View File

@@ -16,7 +16,7 @@ type PullRequestReviewCommentEvent = {
commentId?: string; // May be present for review comments
commentBody: string;
claudeBranch?: string;
defaultBranch?: string;
baseBranch?: string;
};
type PullRequestReviewEvent = {
@@ -25,7 +25,7 @@ type PullRequestReviewEvent = {
prNumber: string;
commentBody: string;
claudeBranch?: string;
defaultBranch?: string;
baseBranch?: string;
};
type IssueCommentEvent = {
@@ -33,7 +33,7 @@ type IssueCommentEvent = {
commentId: string;
issueNumber: string;
isPR: false;
defaultBranch: string;
baseBranch: string;
claudeBranch: string;
commentBody: string;
};
@@ -46,7 +46,7 @@ type PullRequestCommentEvent = {
isPR: true;
commentBody: string;
claudeBranch?: string;
defaultBranch?: string;
baseBranch?: string;
};
type IssueOpenedEvent = {
@@ -54,7 +54,7 @@ type IssueOpenedEvent = {
eventAction: "opened";
isPR: false;
issueNumber: string;
defaultBranch: string;
baseBranch: string;
claudeBranch: string;
};
@@ -63,7 +63,7 @@ type IssueAssignedEvent = {
eventAction: "assigned";
isPR: false;
issueNumber: string;
defaultBranch: string;
baseBranch: string;
claudeBranch: string;
assigneeTrigger: string;
};
@@ -74,7 +74,7 @@ type PullRequestEvent = {
isPR: true;
prNumber: string;
claudeBranch?: string;
defaultBranch?: string;
baseBranch?: string;
};
// Union type for all possible event types