feat(git): update --include-logs to optionally pack git commit history with graphs, metadata, and diffs/patches

[ahundt]

Choose which to pack: commit graphs, metadata, and diffs to analyze changes

Enhances --include-logs to include structured git commit data with optional diff/patch content, using orthogonal flags that mirror git log's own options (prefixed with --git- to avoid namespace conflicts).

Why

To evaluate repository history for cleanup, review, or AI analysis, info is needed beyond commit messages:

1. Diffs — diff content shows exactly what lines were added/removed
2. Commit Dependencies — parent hashes reveal commit relationships
3. How work was integrated — branch/merge topology shows integration points
4. Where releases are — tag mappings identify version boundaries

This adds these capabilities through flags that match git log's parameter structure.

Features

Graph Visualization (--git-graph) — NEW

• ASCII graph: same format as git log --graph --oneline --all
• Mermaid diagram: renders in GitHub, GitLab, documentation sites
• Shows branch connections within the specified commit range

Commit Metadata

With --include-logs (existing): date, message, files

Add any output verbosity/graph option (--git-graph/--git-stat/--git-patch/--git-summary/etc.) for NEW fields:

• Hashes: full SHA and abbreviated for referencing
• Parents: merge commits show 2+ parents
• Author: name, email, timestamp — who wrote the code
• Committer: name, email, timestamp — may differ in cherry-picks, rebases
• Body: full commit message body

Patch/Diff Content (--git-patch, --git-stat, etc.) — NEW

Include actual code changes — see exactly what lines were added, removed, or modified per commit. Choose detail level with diff format options.

Tag Mapping (--git-graph) — NEW

Maps git tags to commit hashes for identifying release boundaries. Included with graph visualization.

CLI Options

repomix --include-logs [--commit-range <range>] [--git-stat|--git-patch|...] [--git-graph] [path/to/repo]

Diff Format Options (mutually exclusive, mirrors git log):

Option	Git Equivalent	What it does	Why you'd use it
--git-name-only	--name-only	Filenames only	Default — see what files changed
--git-stat	--stat	Per-file change counts	See scope without full diffs
--git-patch	--patch	Line-by-line diffs	Evaluate actual code changes
--git-numstat	--numstat	Machine-readable +/-	Programmatic analysis
--git-shortstat	--shortstat	One-line summary	Quick overview
--git-dirstat	--dirstat	Directory percentages	See which areas changed most
--git-name-status	--name-status	Filenames with A/M/D/R	Track adds, mods, deletes, renames
--git-raw	--raw	Low-level with blob SHAs	Detailed analysis

Output Verbosity & Graph Options (combinable with diff format):

Option	Git Equivalent	What it does	Default
--git-graph	--graph --all	ASCII + Mermaid graphs	off
--git-summary	--summary	File operations (create/delete/rename)	off
--commit-range <range>	<range>	Specify commit range	HEAD~50..HEAD
--include-logs-count <n>	-n	Limit commits	50

Usage Examples

# Full diffs for code review
repomix --include-logs --git-patch

# Analyze release range with graph
repomix --include-logs --commit-range v1.0..v2.0 --git-stat --git-graph

# Review feature branch
repomix --include-logs --commit-range main..feature --git-stat --git-graph

# Quick scope overview
repomix --include-logs --git-shortstat

Performance

Measured over 10 runs each on repomix repo (median with min-max range, lower duration is better):

Test Suite Comparison:

Metric	Main (a63546b)	This PR (586d3ae)	Change	Notes
Total Duration	3.58s (3.57-3.73s)	3.62s (3.57-3.71s)	✅ +1.1%	Within variance
Test Files	96	97	✅ +1	New gitHistory.test.ts
Test Count	852	884	✅ +32	+3.8% coverage

gitLogHandle.test.ts (10 runs each, tests the changed code, lower duration is better):

Metric	Main (a63546b)	This PR (586d3ae)	Change
Median	344ms	255ms	🚀 -26%
Min	278ms	249ms	🚀 -10%
Max	896ms	296ms	🚀 -67%
Range	618ms	47ms	🚀 -92%

Repomix Execution (repomix --include-logs on repomix repo, 10 runs each, lower duration is better):

Metric	Main (a63546b)	This PR (586d3ae)	Change	Notes
Execution time	10.83s (10.69-10.99s)	10.39s (10.00-10.75s)	🚀 -4%	Faster with more features

Backwards Compatibility

Preserved:

• All existing CLI arguments (--include-logs, --include-logs-count, --include-diffs) remain unchanged;
• Core XML structure: <git_logs>, <git_log_commit>, <date>, <message>, <files>
• Default behavior with --include-logs alone produces equivalent output
• New fields are optional and only appear when new flags are used

Changed (Minor):

• Date format: 2025-11-20 23:12:33 +0900 → 2025-11-26T04:30:33-05:00 (strict ISO 8601)
  • More parseable format using git's %aI instead of %ad with --date=iso
  • Both are ISO 8601 variants; the new format includes T separator and colon in timezone
  • This is a minor format change that improves parseability for automated tools
• All new flags (--git-stat, --git-patch, --git-graph, --git-summary, --commit-range, etc.) are purely additive.

New optional sections (only when using enhancement flags):

• <hash>, <author>, <committer>, <parents>, <body>, <patch> per commit
• <summary> section with commit counts and range info
• <commit_graph> section with ASCII and Mermaid visualizations

Output Structure

GitLogCommit with progressive fields:

interface GitLogCommit {
  date: string;
  message: string;
  files: string[];
  // Extended (with --git-graph, --git-stat, --git-patch, --git-summary, etc.):
  hash?: string;
  abbreviatedHash?: string;
  author?: { name: string; email: string; date: string };
  committer?: { name: string; email: string; date: string };
  parents?: string[];
  body?: string;
  patch?: string;
}

Checklist

• npm run test — 1136 tests (1134 pass, 2 pre-existing failures in packageJsonParse.test.ts also fail on main at 72d53a4a)
• npm run lint — 0 errors, 0 warnings
• Documentation updated
• Backward compatible (--include-logs behavior preserved)

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📝 Walkthrough

Walkthrough

This PR adds comprehensive Git commit history analysis capabilities to Repomix, introducing CLI flags (--patch, --stat, --graph, --summary, --commit-range) and configuration options to retrieve, parse, and render structured commit metadata, patches, ASCII/Mermaid graphs, and tags. The implementation spans CLI parsing, config schema, core git parsing utilities, output generation, and documentation.

Changes

Cohort / File(s)	Summary
CLI Options & Configuration src/cli/types.ts, src/cli/cliRun.ts, src/cli/actions/defaultAction.ts	Adds new CliOptions fields (commitRange, stat, patch, numstat, shortstat, dirstat, nameOnly, nameStatus, raw, graph, summary); registers CLI flags with grouping (Git Log Diff Format Options, Git Log Output Verbosity & Graph Options); wires flags into cliConfig with mutual-exclusion validation and commitPatchDetail derivation.
Config Schema src/config/configSchema.ts	Extends git output config with commitRange (default 'HEAD~50..HEAD'), commitPatchDetail (default 'name-only'), includeCommitGraph, includeSummary, includeGitTags, includeCommitPatches fields in both base and default schemas.
Git History Core src/core/git/gitCommand.ts, src/core/git/gitHistory.ts, src/core/git/gitLogHandle.ts	Introduces structured git output parsing layer with NUL delimiters; adds CommitMetadata, CommitGraph, ParsedCommitRange interfaces; implements parseCommitRange, getCommitMetadata, getCommitGraph, getTags, getCommitPatch, generateMermaidGraph functions; refactors git log handling to two-pass structured parsing with optional patches and graph.
Output Generation src/core/output/outputGeneratorTypes.ts, src/core/output/outputGenerate.ts, src/core/output/outputStyles/markdownStyle.ts, src/core/output/outputStyles/xmlStyle.ts	Extends RenderContext with gitCommitHistorySummary and gitCommitGraph; updates markdown/XML output templates to render commit history sections (graph, summary, commits with metadata, patches, tags).
Integration src/core/packager.ts, src/core/metrics/calculateGitLogMetrics.ts, src/core/security/securityCheck.ts	Updates GitLogCommit shape to include optional hash, abbreviatedHash, author, committer, parents, body, patch fields; adjusts metrics calculation and security checks to consume new logCommits structure instead of logContent.
Tests — Config & Metrics tests/config/configSchema.test.ts, tests/core/metrics/calculateGitDiffMetrics.test.ts, tests/core/metrics/calculateGitLogMetrics.test.ts	Extends mock RepomixConfig with new git fields; updates GitLogResult shape expectations to use logCommits array instead of logContent/commits.
Tests — Git & Output tests/core/git/gitHistory.test.ts, tests/core/git/gitLogHandle.test.ts, tests/core/output/outputGenerate.test.ts, tests/core/output/outputGenerateDiffs.test.ts, tests/core/output/outputGenerateMarkdownStyle.test.ts, tests/core/output/outputGenerateXmlStyle.test.ts	Adds comprehensive test suite for gitHistory functions (parseCommitRange, getCommitMetadata, getTags, getCommitPatch, getCommitGraph); refactors gitLogHandle tests to mock structured output and NUL-separated parsing; extends output tests to verify new git history rendering across markdown/XML/JSON.
Tests — Utilities tests/cli/actions/workers/defaultActionWorker.test.ts, tests/core/output/flagFullDirectoryStructure.test.ts, tests/core/output/outputStyles/jsonStyle.test.ts	Updates mock RepomixConfigMerged.git with new fields (commitRange, commitPatchDetail, includeCommitGraph, includeSummary, includeGitTags, includeCommitPatches).
Documentation — English README.md, llms-install.md, website/client/src/en/guide/command-line-options.md, website/client/src/en/guide/configuration.md, website/client/src/en/guide/output.md, website/client/src/en/guide/usage.md, website/client/src/en/guide/tips/git-commit-history.md	Adds sections documenting Git Commit History Analysis feature: CLI options (diff format flags, output detail/graph options, commit-range syntax), configuration defaults, output components (metadata, ASCII/Mermaid graphs, tags, patches), and usage examples/workflows.
Documentation — Translations website/client/src/*/guide/command-line-options.md (de, es, fr, hi, id, ja, ko, pt-br, vi, zh-cn, zh-tw)	Adds translated Git Commit History Options sections describing orthogonal diff flags and output options; consistent content across languages with some duplication within files.
Documentation — Navigation & Other website/client/.vitepress/config/configEnUs.ts, .gitignore	Adds sidebar navigation entry for Git Commit History Analysis guide; adds .claude to gitignore.

Sequence Diagram(s)

sequenceDiagram
    participant CLI as CLI<br/>(cliRun.ts)
    participant Action as Action<br/>(defaultAction.ts)
    participant GitCmd as Git Commands<br/>(gitCommand.ts)
    participant GitHist as Git History<br/>(gitHistory.ts)
    participant GitLog as Git Log Handle<br/>(gitLogHandle.ts)
    participant Output as Output Generate<br/>(outputGenerate.ts)
    participant Render as Render Styles<br/>(markdown/xml/json)

    CLI->>Action: Parse flags (--patch, --graph, --summary, --commit-range)
    Action->>Action: Validate mutual exclusion, derive commitPatchDetail
    Action->>Action: Augment cliConfig with git options
    
    Action->>GitLog: getGitLogs(config, deps)
    
    GitLog->>GitCmd: execGitLogStructured(range, maxCommits)
    GitCmd-->>GitLog: NUL-delimited structured metadata
    
    GitLog->>GitHist: parseCommitRange(range)
    GitHist-->>GitLog: { from, to, raw }
    
    alt includeCommitPatches
        GitLog->>GitCmd: execGitLogTextBlob(range, patchDetail)
        GitCmd-->>GitLog: patch/stat/diff text blobs
    end
    
    alt includeCommitGraph
        GitLog->>GitCmd: execGitGraph(range)
        GitCmd-->>GitLog: git log --graph output
        GitLog->>GitHist: generateMermaidGraph(commits, tags)
        GitHist-->>GitLog: Mermaid diagram string
    end
    
    GitLog->>GitHist: getTags(directory)
    GitHist-->>GitLog: tag→hash map
    
    GitLog-->>Action: GitLogResult { logCommits[], graph?, summary? }
    
    Action->>Output: generateOutput(context, gitLogResult)
    Output->>Output: Build RenderContext with gitCommitHistorySummary, gitCommitGraph
    Output->>Render: Render git history section
    Render->>Render: Format commits, patches, graph, tags per style
    Render-->>Output: Rendered markdown/XML/JSON
    Output-->>Action: Final output string

Loading

Estimated code review effort

🎯 4 (Complex) | ⏱️ ~60 minutes

• gitCommand.ts & gitHistory.ts (~25 min): Multi-pass git command architecture with structured NUL-delimited parsing requires careful review of delimiter handling, regex patterns, and error paths. Note: gitCommand.ts contains apparent duplicate declarations of NUL, METADATA_FORMAT, GitLogStructuredOptions, GitLogTextBlobOptions, execGitLogStructured, execGitLogTextBlob, execGitGraph—confirm if intentional or merge artifact.
• gitLogHandle.ts refactor (~20 min): Significant restructuring from simple text parsing to two-pass structured approach; parseStructuredOutput helper regex patterns and Mermaid graph generation logic need verification for correctness and edge cases.
• CLI integration & config wiring (~10 min): Multiple touch points (cliRun.ts, defaultAction.ts, configSchema.ts) require tracing flag→config→output flow to ensure mutual-exclusion validation and commitPatchDetail derivation work correctly.
• Output generation complexity (~10 min): RenderContext changes, optional field rendering across markdown/XML/JSON styles, and new data shape (logCommits vs. logContent) must be validated for consistency.
• Test coverage (~5 min): Extensive test additions are largely straightforward mock-based tests, though gitLogHandle.test.ts refactor adds structured parsing expectations that should be spot-checked.

Areas requiring extra attention:

• Duplicate code block in src/core/git/gitCommand.ts (lines near end of file repeating NUL constant, METADATA_FORMAT, and all three exec* functions)
• NUL delimiter parsing robustness for edge cases (empty output, incomplete records, special characters in commit messages)
• Mermaid graph generation for complex merge scenarios and tag escaping
• Integration with existing packager/metrics/security flows to ensure logCommits structure properly replaces logContent
• Semantic consistency between CliOptions (snake_case: nameOnly, nameStatus) and command-line flags (kebab-case: --name-only, --name-status)

Possibly related issues

• Add --include-logs option to include git log --name-status output #540: Main implementation of Git commit history analysis feature with CLI flags, config schema, and git log collection—this PR appears to be a complete realization of that feature proposal.

Possibly related PRs

• Improve CLI help text clarity and accuracy #831: Modifies CLI option definitions and help text in src/cli/cliRun.ts; directly overlaps with new git-log-related flag additions in this PR.
• Add comprehensive JSON output format support #837: Updates output generation (src/core/output/outputGenerate.ts) to add enriched git-log data to render context and JSON parsable output; directly conflicts with RenderContext changes here.
• feat(cli): Add --include-logs option for git commit history #793: Implements Git commit-history features (CLI, config, git handling, output templates); substantial overlap in modified modules (src/core/git/, src/cli/, src/core/output/*).

Suggested labels

enhancement, git, feature

Suggested reviewers

• yamadashy

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and specifically summarizes the main change: enhancing --include-logs to pack git commit history with graphs, metadata, and diffs/patches. It is concise, related to the primary objective, and conveys meaningful information.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Description check	✅ Passed	The PR description is comprehensive and well-structured, covering motivation, features, CLI options, usage examples, performance data, backwards compatibility, and output structure.

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[gemini-code-assist]

Summary of Changes

Hello @ahundt, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request significantly enhances the repomix tool by introducing a robust Git commit history analysis feature. This allows AI systems to gain a deeper understanding of code evolution, development patterns, and contextual information beyond just current file contents. By providing detailed commit metadata, visual graphs, and configurable patch levels, the tool now offers richer insights crucial for advanced AI-driven code analysis and understanding.

Highlights

• Comprehensive Git Commit History Analysis: Introduced a new feature to analyze and include detailed Git commit history in the output, providing rich metadata, visual graphs (ASCII and Mermaid), and configurable patch details for AI systems.
• New CLI Options and Configuration: Added six new CLI options (--include-commit-history, --commit-range, --commit-patch-detail, --no-commit-graph, --no-git-tags, --no-commit-patches) and corresponding configuration schema updates to give users fine-grained control over Git history extraction.
• Enhanced Output Formats: Integrated the new Git commit history data into both Markdown and XML output styles, ensuring structured and comprehensive presentation for downstream AI analysis.
• New Core Modules for Git Operations: Developed dedicated core modules (src/core/git/gitHistory.ts and src/core/git/gitHistoryHandle.ts) to manage Git command execution, parse commit data, and orchestrate the history collection process.
• Extensive Documentation and Testing: Updated README.md, llms-install.md, and the project website with new guides and examples for the Git commit history feature, complemented by 871 new unit and integration tests to ensure reliability.

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[ahundt]

Hey, I addressed the ai-generated review feedback in the latest commit:

Fixed:

• Body/file parsing now uses %x00 null byte delimiter instead of the fragile heuristic. Null bytes can't appear in commit messages or file paths, so this reliably separates them.
• Mermaid gitGraph syntax corrected. Was using invalid merge <hash>, now uses proper commit id: "..." tag: "..." type: HIGHLIGHT.
• Added git_history section to parsable XML output to match JSON structure.
• Added includeCommitPatches to configuration docs.
• Added files list to XML (<files>) and Markdown (**Files Changed**) templates.

Kept as-is:

• --all flag stays. It's git's standard flag for showing branch topology within the specified range. Documented this behavior.

Out of scope:

• CDATA wrapping: The existing XML templates don't use it, so adding it just for commit history would be inconsistent. Parsable XML uses XMLBuilder which escapes automatically.
• Parallel patch fetching: Overkill for this functionality. Sequential is simpler and avoids spawning many git processes.

894 tests passing, lint clean. Let me know if you'd like any changes! Thanks for the useful tool!

[ahundt]

@yamadashy this seems to be in reasonably good shape now if you're up for giving it a look! The summary at the very top should be up to date now.

/gemini review

@coderabbitai full review

[coderabbitai]

@ahundt, thank you for the comprehensive updates and for addressing the previous feedback! I can see you've made thoughtful improvements:

✅ Robust parsing with null byte delimiters
✅ Correct Mermaid syntax for git graphs
✅ Complete XML/JSON parity with the new git_history section
✅ Enhanced documentation and template coverage
✅ Strong test coverage (894 tests passing, lint clean)

Your decisions on keeping --all and deferring CDATA/parallel fetching are reasonable given the context and consistency with the existing codebase.

I'll perform a full review of the entire PR now to provide comprehensive feedback on the implementation.

✅ Actions performed

Full review triggered.

[gemini-code-assist]

Hello @ahundt,

Thank you for the detailed update and for addressing the feedback from the previous review. I appreciate the thoroughness of your changes and the clear explanations for the decisions made.

I've reviewed the latest commit, and the fixes you've implemented are excellent:

• Null Byte Delimiter: The adoption of %x00 for robust parsing of commit metadata and file lists is a significant improvement. This eliminates the fragility of previous heuristics and ensures reliable data extraction, even with unusual commit messages or file paths.
• Mermaid GitGraph Syntax: The correction to use commit id: "..." tag: "..." type: HIGHLIGHT is spot on. This ensures compatibility with Mermaid and correctly visualizes merge commits and tags.
• XML Output Structure: The git_history section has been correctly integrated into the parsable XML output, aligning it with the JSON structure and providing a consistent, rich data representation.
• Configuration Documentation: includeCommitPatches is now properly documented in llms-install.md and website/client/src/en/guide/configuration.md.
• Files List in Templates: The inclusion of the files list in both XML and Markdown templates for commit history is a valuable addition, providing a complete picture of each commit's changes.

Your decision to keep the --all flag for git log and to document its behavior is reasonable, as it aligns with standard Git functionality for showing branch topology. Similarly, your rationale for not implementing CDATA wrapping (due to existing XML templates and automatic escaping) and parallel patch fetching (for simplicity and avoiding process overhead) is well-justified.

The new two-pass architecture for Git log parsing, along with the dedicated modules for Git operations (gitCommand.ts, gitHistory.ts, gitLogHandle.ts), significantly enhances the robustness, maintainability, and flexibility of the Git history feature. The comprehensive test suite, especially gitHistory.test.ts, demonstrates a strong commitment to quality and covers various scenarios and edge cases.

Overall, this is a very well-executed enhancement. Great work!

I will now proceed with a full review as requested by /gemini review.

[yamadashy]

Hi @ahundt!
Thank you for this PR!

I've been thinking about extending the git history-related features, so the direction looks good to me.

I'd like to take some time to think about the option design. I don't have time to review the code in detail right now, but I'll take a closer look later!

[ahundt]

Ok I stuck to your existing pattern and it is essentially a pass through of the existing git commands which I view as one of the the likeliest paths users and tools like ais will be able to run with existing knowledge, and thus a reasonable choice. It is dramatically simplified from the initial commit.

[yamadashy]

@ahundt
I've thought about the option design. The idea of mirroring git log options is great - it makes the CLI intuitive for users familiar with git.

Here are my thoughts:

Option naming

• I'd prefer --git- prefix (e.g., --git-stat, --git-patch)
• It may seem redundant since they're used with --include-logs, but for example, if we want to add other graph-related features in the future, --include-logs --graph could conflict
• Adding the prefix now avoids namespace issues later

Design concerns

• --patch fails with stdout maxBuffer length exceeded on this repository
• includeLogsCount seems ignored when using --patch, --graph, etc.
• Relationship between commitRange and includeLogsCount is unclear

Scope

• Many options are added at once. Starting with a minimal set (e.g., --git-patch, --git-stat) might be easier to review and iterate on

What do you think?

[ahundt]

I'm actually using all the params, they are helpful for inspecting and diagnosing good commits and bad commits in a messy history.

Also if it were instead set up as commands and/or ordered params the ambiguity would go away.

like how there is git rm, not git --rm; and then git rm can itself have params/flags, and those params/flags can also (potentially) work for git log, for example.

even if the --include-logs was kept, there could still be ordering to disambiguate. But I don't care that much if you want --git-patch, it is a bit redundant but not the end of the world it would get the job done.

[ahundt]

Just following up!

[devin-ai-integration]

Devin Review found 3 new potential issues.

View 10 additional findings in Devin Review.

[devin-ai-integration]

🟡 New file gitHistory.ts exceeds 250-line limit from AGENTS.md

The new file src/core/git/gitHistory.ts is 402 lines, far exceeding the 250-line limit specified in AGENTS.md: "If a file exceeds 250 lines, then the assistant shall split it into multiple files based on functionality." The file contains several distinct functional areas (commit range parsing, commit metadata fetching, commit graph generation, tag fetching, patch retrieval, and Mermaid graph generation) that could be split into separate modules.

Prompt for agents

Split src/core/git/gitHistory.ts (402 lines) into smaller files to comply with the 250-line limit in AGENTS.md. Suggested split:

1. src/core/git/gitCommitRange.ts - parseCommitRange function and ParsedCommitRange interface (~30 lines)
2. src/core/git/gitCommitMetadata.ts - getCommitMetadata, CommitMetadata interface (~90 lines)
3. src/core/git/gitCommitGraph.ts - getCommitGraph, CommitGraph interface, generateMermaidGraph, escapeMermaidString (~120 lines)
4. src/core/git/gitTags.ts - getTags function (~30 lines)
5. src/core/git/gitCommitPatch.ts - getCommitPatch, PatchDetailLevel type (~70 lines)

Each file should export its public types and functions, and the current gitHistory.ts can become a barrel file re-exporting everything for backward compatibility.

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[devin-ai-integration]

🟡 Modified file gitLogHandle.ts exceeds 250-line limit from AGENTS.md

The file src/core/git/gitLogHandle.ts grew from 113 lines to 322 lines in this PR, exceeding the 250-line limit specified in AGENTS.md: "If a file exceeds 250 lines, then the assistant shall split it into multiple files based on functionality." The file contains the two-pass parser (parseStructuredOutput with helper functions), type definitions, and the public API (getGitLog, getGitLogs) which could be split.

Prompt for agents

Split src/core/git/gitLogHandle.ts (322 lines) into smaller files to comply with the 250-line limit in AGENTS.md. Suggested split:

1. src/core/git/gitLogParser.ts - Move the parseStructuredOutput function along with ParsedCommit interface, HASH_REGEX, ABBREV_HASH_REGEX, isHash, isAbbrevOf helper functions (lines 76-197, ~120 lines)
2. src/core/git/gitLogHandle.ts - Keep the type definitions (GitLogResult, GitLogCommit, HistorySummary), public API functions (getGitLog, getGitLogs), and constants (~130 lines)

The parser module would export parseStructuredOutput which gitLogHandle.ts imports.

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[ahundt]

@yamadashy Thanks for the feedback on the option design! I've pushed a commit addressing all the points you raised, plus the bugs found by Devin and CodeRabbit.

PR #968 Issue Resolution Summary

yamadashy (maintainer) feedback, all 3 addressed:

Issue	Status	Evidence
Rename CLI flags to --git- prefix	Fixed	10 flags renamed in types.ts, cliRun.ts, defaultAction.ts, + 17 doc files
--patch crashes with stdout maxBuffer exceeded	Fixed	GIT_LOG_MAX_BUFFER (50MB) added to all 7 execFileAsync calls
includeLogsCount ignored with --patch/--graph	Fixed	Changed if/else if to two independent if blocks in 3 functions

Devin AI review bugs, all 3 addressed:

Issue	Status	Evidence
Three-dot range parsing (main...feature broken)	Fixed	parseCommitRange checks ... before .., preserves separator field
Missing name-only/name-status in patchTypes	Fixed	Array now has all 8 entries at gitLogHandle.ts:242
--commit-range silently ignored without other flags	Fixed	hasExplicitRange check at gitLogHandle.ts:239

CodeRabbit review, all addressed:

Issue	Status	Evidence
GitLogTextBlobOptions.patchDetail enum incomplete	Fixed	Now includes all 8 values at gitCommand.ts:217
commitPatchDetail default wrong in llms-install.md	Already fixed	Shows 'name-only' matching schema
Missing patchTypes entries	Fixed	Same as Devin BUG_0002

Capability Regression Check, no regressions:

• All exported functions/interfaces in gitHistory.ts, gitCommand.ts, gitLogHandle.ts preserved
• All 8 config schema git fields preserved (configSchema.ts:50-59, 118-127)
• All output templates (markdownStyle, xmlStyle, outputGenerate) unchanged
• All 10 CLI flags preserved (renamed with --git- prefix)
• --commit-range preserved as-is (already namespaced)
• 1134/1136 tests pass. The 2 failing tests (tests/core/file/packageJsonParse.test.ts: getVersion and getVersion should handle missing version) are a pre-existing upstream issue that also fails on main at commit 72d53a4a with vi.mocked(url.fileURLToPath).mockReturnValue is not a function. This branch does not modify packageJsonParse.test.ts or its source file.

Happy to make any further adjustments. Thanks again for the great tool!

[devin-ai-integration]

Devin Review found 2 new potential issues.

⚠️ 1 issue in files not directly in the diff

⚠️ Plain text template not updated with new git commit history fields (src/core/output/outputStyles/plainStyle.ts:80-96)

The plain text output template (src/core/output/outputStyles/plainStyle.ts) was not updated to render any of the new git commit history fields (hash, author, committer, parents, body, patch, graph, summary). Both the XML template (xmlStyle.ts) and Markdown template (markdownStyle.ts) were updated with these new fields, but the plain text template still only renders the basic date, message, and files fields. This means users selecting --style plain with --git-graph, --git-patch, etc. will silently lose the enhanced data they requested.

View 11 additional findings in Devin Review.

[devin-ai-integration]

🟡 Annotated git tags never match commits due to %(objectname) returning tag object hash instead of commit hash

The getTags function at src/core/git/gitHistory.ts:275 uses %(objectname) in the --format string. For lightweight tags, %(objectname) correctly returns the commit hash. However, for annotated tags (created with git tag -a), %(objectname) returns the tag object hash, not the underlying commit hash. This means that when generateMermaidGraph at src/core/git/gitHistory.ts:388 tries to match tags to commits via hash === commit.hash, annotated tags will never match because the tag object hash differs from the commit hash. Annotated tags are very common (e.g., GitHub release tags are annotated). The result is that annotated tags won't appear as markers on the Mermaid graph, and the tags section in the output will list incorrect hashes (tag object hashes instead of commit hashes).

The fix is to use %(*objectname) (the dereferenced/peeled hash) for annotated tags, falling back to %(objectname) for lightweight tags.

Suggested change

	'--format=%(refname:short) %(objectname)',
	'--format=%(refname:short) %(if)%(*objectname)%(then)%(*objectname)%(else)%(objectname)%(end)',

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