git

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 Go to latest Published: Feb 17, 2026 License: MIT Imports: 11 Imported by: 0

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Constants

This section is empty.

Variables

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var ErrNotARepo = errors.New("not a git repository")

ErrNotARepo is returned when the path is not inside a Git repository.

Functions

func LogFormatFlag 

func LogFormatFlag() string

LogFormatFlag returns the --format flag for git log.

Types

type Branch 

type Branch struct {
	Name      string
	IsCurrent bool
	IsRemote  bool
	Upstream  string
	Hash      string
	Subject   string
	Ahead     int
	Behind    int
}

Branch represents a local or remote branch.

func ParseBranchOutput 

func ParseBranchOutput(out string) []Branch

ParseBranchOutput parses `git branch -a --format=...`.

type CLIService 

type CLIService struct {
	// contains filtered or unexported fields
}

CLIService implements Service by shelling out to the git CLI. Optimised for large monorepos:

  • GIT_OPTIONAL_LOCKS=0 env var on all read commands (no lock contention)
  • Context-based timeouts prevent hangs
  • Stdout/Stderr separated — stderr noise doesn't corrupt output

func NewCLIService 

func NewCLIService(path string) (*CLIService, error)

NewCLIService opens a Git repository at the given path.

func (*CLIService) AheadBehind 

func (s *CLIService) AheadBehind() (int, int, error)

AheadBehind returns how many commits ahead/behind the upstream.

func (*CLIService) BisectBad 

func (s *CLIService) BisectBad() error

BisectBad marks the current commit as bad.

func (*CLIService) BisectGood 

func (s *CLIService) BisectGood() error

BisectGood marks the current commit as good.

func (*CLIService) BisectLog 

func (s *CLIService) BisectLog() (string, error)

BisectLog returns the bisect log.

func (*CLIService) BisectReset 

func (s *CLIService) BisectReset() error

BisectReset resets the bisect session.

func (*CLIService) BisectStart 

func (s *CLIService) BisectStart(bad, good string) error

BisectStart starts a git bisect.

func (*CLIService) Branches 

func (s *CLIService) Branches() ([]Branch, error)

Branches returns all branches.

func (*CLIService) Commit 

func (s *CLIService) Commit(message string) error

Commit creates a new commit with the given message.

func (*CLIService) CommitAmend 

func (s *CLIService) CommitAmend(message string) error

CommitAmend amends the last commit with the given message.

func (*CLIService) ConflictFiles 

func (s *CLIService) ConflictFiles() ([]string, error)

ConflictFiles returns paths with merge conflicts.

func (*CLIService) CreateBranch 

func (s *CLIService) CreateBranch(name string) error

CreateBranch creates a new branch.

func (*CLIService) DeleteBranch 

func (s *CLIService) DeleteBranch(name string, force bool) error

DeleteBranch deletes the given branch.

func (*CLIService) Diff 

func (s *CLIService) Diff(staged bool, path string) (string, error)

Diff returns the diff for a path.

func (*CLIService) DiffRange 

func (s *CLIService) DiffRange(from, to string) (string, error)

DiffRange returns the diff between two refs.

func (*CLIService) Discard 

func (s *CLIService) Discard(paths ...string) error

Discard discards changes for the given paths.

func (*CLIService) Fetch 

func (s *CLIService) Fetch(remote string) error

Fetch fetches from the given remote.

func (*CLIService) GitDir 

func (s *CLIService) GitDir() string

GitDir returns the path to the .git directory.

func (*CLIService) Head 

func (s *CLIService) Head() (string, error)

Head returns the current HEAD ref.

func (*CLIService) IsClean 

func (s *CLIService) IsClean() (bool, error)

IsClean reports whether the worktree is clean.

func (*CLIService) IsMerging 

func (s *CLIService) IsMerging() bool

IsMerging reports whether a merge is in progress.

func (*CLIService) IsRebasing 

func (s *CLIService) IsRebasing() bool

IsRebasing reports whether a rebase is in progress.

func (*CLIService) Log 

func (s *CLIService) Log(limit int, args ...string) ([]Commit, error)

Log returns the commit log.

func (*CLIService) LogGraph 

func (s *CLIService) LogGraph(limit int) ([]GraphEntry, error)

LogGraph returns the commit log with ASCII graph.

func (*CLIService) MarkResolved 

func (s *CLIService) MarkResolved(path string) error

MarkResolved marks a conflict as resolved.

func (*CLIService) MergeBranch 

func (s *CLIService) MergeBranch(name string) error

MergeBranch merges the given branch into the current branch.

func (*CLIService) Pull 

func (s *CLIService) Pull(remote, branch string) error

Pull pulls from the given remote and branch.

func (*CLIService) Push 

func (s *CLIService) Push(remote, branch string, force bool) error

Push pushes to the given remote and branch.

func (*CLIService) RebaseAbort 

func (s *CLIService) RebaseAbort() error

RebaseAbort aborts a rebase in progress.

func (*CLIService) RebaseContinue 

func (s *CLIService) RebaseContinue() error

RebaseContinue continues a rebase in progress.

func (*CLIService) RebaseInteractive 

func (s *CLIService) RebaseInteractive(onto string) error

RebaseInteractive starts an interactive rebase.

func (*CLIService) Remotes 

func (s *CLIService) Remotes() ([]Remote, error)

Remotes returns all configured remotes.

func (*CLIService) RenameBranch 

func (s *CLIService) RenameBranch(oldName, newName string) error

RenameBranch renames a branch.

func (*CLIService) RepoRoot 

func (s *CLIService) RepoRoot() string

RepoRoot returns the repository root path.

func (*CLIService) Show 

func (s *CLIService) Show(hash string) (*Commit, string, error)

Show returns the commit details and diff for a given hash.

func (*CLIService) Stage 

func (s *CLIService) Stage(paths ...string) error

Stage stages the given paths.

func (*CLIService) StageAll 

func (s *CLIService) StageAll() error

StageAll stages all changes.

func (*CLIService) StashApply 

func (s *CLIService) StashApply(index int) error

StashApply applies the stash at the given index.

func (*CLIService) StashDrop 

func (s *CLIService) StashDrop(index int) error

StashDrop drops the stash at the given index.

func (*CLIService) StashList 

func (s *CLIService) StashList() ([]StashEntry, error)

StashList returns stash entries.

func (*CLIService) StashPop 

func (s *CLIService) StashPop(index int) error

StashPop pops the stash at the given index.

func (*CLIService) StashSave 

func (s *CLIService) StashSave(message string) error

StashSave saves a new stash entry.

func (*CLIService) StashShow 

func (s *CLIService) StashShow(index int) (string, error)

StashShow shows the diff for a stash entry.

func (*CLIService) Status 

func (s *CLIService) Status() (*StatusResult, error)

Status returns the current working tree status.

func (*CLIService) SwitchBranch 

func (s *CLIService) SwitchBranch(name string) error

SwitchBranch switches to the given branch.

func (*CLIService) Unstage 

func (s *CLIService) Unstage(paths ...string) error

Unstage unstages the given paths.

func (*CLIService) UnstageAll 

func (s *CLIService) UnstageAll() error

UnstageAll unstages all changes.

func (*CLIService) Upstream 

func (s *CLIService) Upstream() string

Upstream returns the upstream tracking branch name.

func (*CLIService) WorktreeAdd 

func (s *CLIService) WorktreeAdd(path, branch string) error

WorktreeAdd adds a new worktree.

func (*CLIService) WorktreeList 

func (s *CLIService) WorktreeList() ([]Worktree, error)

WorktreeList returns all worktrees.

func (*CLIService) WorktreeRemove 

func (s *CLIService) WorktreeRemove(path string) error

WorktreeRemove removes a worktree.

type CachedService 

type CachedService struct {
	// contains filtered or unexported fields
}

CachedService wraps a Service implementation with a TTL-based cache for expensive read operations. Write operations (Stage, Commit, etc.) automatically invalidate the cache so the next read is fresh.

This is critical for monorepo performance: multiple views and the status bar all request overlapping data (Status, Head, AheadBehind, etc.) within the same refresh cycle. Without caching, a single refresh event could spawn 15+ git subprocesses. With caching, it spawns ~5.

The cache is bounded by maxCacheEntries to prevent unbounded memory growth across long-running sessions or multiple instances.

func NewCachedService 

func NewCachedService(inner Service, ttl time.Duration) *CachedService

NewCachedService wraps an existing Service with a TTL cache. Recommended TTL: 1-2 seconds. This ensures that within a single refresh cycle (which triggers multiple git queries), each query only hits git once.

func (*CachedService) AheadBehind 

func (c *CachedService) AheadBehind() (int, int, error)

AheadBehind delegates to the inner service (cached).

func (*CachedService) BisectBad 

func (c *CachedService) BisectBad() error

BisectBad marks current commit as bad and invalidates the cache.

func (*CachedService) BisectGood 

func (c *CachedService) BisectGood() error

BisectGood marks current commit as good and invalidates the cache.

func (*CachedService) BisectLog 

func (c *CachedService) BisectLog() (string, error)

BisectLog delegates to the inner service (not cached).

func (*CachedService) BisectReset 

func (c *CachedService) BisectReset() error

BisectReset resets bisect and invalidates the cache.

func (*CachedService) BisectStart 

func (c *CachedService) BisectStart(bad, good string) error

BisectStart starts bisect and invalidates the cache.

func (*CachedService) Branches 

func (c *CachedService) Branches() ([]Branch, error)

Branches delegates to the inner service (cached).

func (*CachedService) Commit 

func (c *CachedService) Commit(message string) error

Commit creates a commit and invalidates the cache.

func (*CachedService) CommitAmend 

func (c *CachedService) CommitAmend(message string) error

CommitAmend amends the last commit and invalidates the cache.

func (*CachedService) ConflictFiles 

func (c *CachedService) ConflictFiles() ([]string, error)

ConflictFiles delegates to the inner service (cached).

func (*CachedService) CreateBranch 

func (c *CachedService) CreateBranch(name string) error

CreateBranch creates a branch and invalidates the cache.

func (*CachedService) DeleteBranch 

func (c *CachedService) DeleteBranch(name string, force bool) error

DeleteBranch deletes a branch and invalidates the cache.

func (*CachedService) Diff 

func (c *CachedService) Diff(staged bool, path string) (string, error)

Diff delegates to the inner service (not cached).

func (*CachedService) DiffRange 

func (c *CachedService) DiffRange(from, to string) (string, error)

DiffRange delegates to the inner service (not cached).

func (*CachedService) Discard 

func (c *CachedService) Discard(paths ...string) error

Discard discards changes in paths and invalidates the cache.

func (*CachedService) Fetch 

func (c *CachedService) Fetch(remote string) error

Fetch fetches from remote and invalidates the cache.

func (*CachedService) GitDir 

func (c *CachedService) GitDir() string

GitDir delegates to the inner service.

func (*CachedService) Head 

func (c *CachedService) Head() (string, error)

Head returns the current HEAD ref (cached).

func (*CachedService) Invalidate 

func (c *CachedService) Invalidate()

Invalidate clears all cached entries. Called after any write operation.

func (*CachedService) IsClean 

func (c *CachedService) IsClean() (bool, error)

IsClean reports whether the worktree is clean (cached).

func (*CachedService) IsMerging 

func (c *CachedService) IsMerging() bool

IsMerging delegates to the inner service (cached).

func (*CachedService) IsRebasing 

func (c *CachedService) IsRebasing() bool

IsRebasing delegates to the inner service (cached).

func (*CachedService) Log 

func (c *CachedService) Log(limit int, args ...string) ([]Commit, error)

Log delegates to the inner service (not cached).

func (*CachedService) LogGraph 

func (c *CachedService) LogGraph(limit int) ([]GraphEntry, error)

LogGraph delegates to the inner service (not cached).

func (*CachedService) MarkResolved 

func (c *CachedService) MarkResolved(path string) error

MarkResolved marks a conflict as resolved and invalidates the cache.

func (*CachedService) MergeBranch 

func (c *CachedService) MergeBranch(name string) error

MergeBranch merges a branch and invalidates the cache.

func (*CachedService) Pull 

func (c *CachedService) Pull(remote, branch string) error

Pull pulls from remote and invalidates the cache.

func (*CachedService) Push 

func (c *CachedService) Push(remote, branch string, force bool) error

Push pushes to remote and invalidates the cache.

func (*CachedService) RebaseAbort 

func (c *CachedService) RebaseAbort() error

RebaseAbort aborts rebase and invalidates the cache.

func (*CachedService) RebaseContinue 

func (c *CachedService) RebaseContinue() error

RebaseContinue continues rebase and invalidates the cache.

func (*CachedService) RebaseInteractive 

func (c *CachedService) RebaseInteractive(onto string) error

RebaseInteractive starts interactive rebase and invalidates the cache.

func (*CachedService) Remotes 

func (c *CachedService) Remotes() ([]Remote, error)

Remotes delegates to the inner service (cached).

func (*CachedService) RenameBranch 

func (c *CachedService) RenameBranch(oldName, newName string) error

RenameBranch renames a branch and invalidates the cache.

func (*CachedService) RepoRoot 

func (c *CachedService) RepoRoot() string

RepoRoot delegates to the inner service.

func (*CachedService) Show 

func (c *CachedService) Show(hash string) (*Commit, string, error)

Show delegates to the inner service (not cached).

func (*CachedService) Stage 

func (c *CachedService) Stage(paths ...string) error

Stage stages paths and invalidates the cache.

func (*CachedService) StageAll 

func (c *CachedService) StageAll() error

StageAll stages all changes and invalidates the cache.

func (*CachedService) StashApply 

func (c *CachedService) StashApply(index int) error

StashApply applies a stash entry and invalidates the cache.

func (*CachedService) StashDrop 

func (c *CachedService) StashDrop(index int) error

StashDrop drops a stash entry and invalidates the cache.

func (*CachedService) StashList 

func (c *CachedService) StashList() ([]StashEntry, error)

StashList delegates to the inner service (cached).

func (*CachedService) StashPop 

func (c *CachedService) StashPop(index int) error

StashPop pops a stash entry and invalidates the cache.

func (*CachedService) StashSave 

func (c *CachedService) StashSave(message string) error

StashSave saves to stash and invalidates the cache.

func (*CachedService) StashShow 

func (c *CachedService) StashShow(index int) (string, error)

StashShow delegates to the inner service (not cached).

func (*CachedService) Status 

func (c *CachedService) Status() (*StatusResult, error)

Status delegates to the inner service (cached).

func (*CachedService) SwitchBranch 

func (c *CachedService) SwitchBranch(name string) error

SwitchBranch switches to a branch and invalidates the cache.

func (*CachedService) Unstage 

func (c *CachedService) Unstage(paths ...string) error

Unstage unstages paths and invalidates the cache.

func (*CachedService) UnstageAll 

func (c *CachedService) UnstageAll() error

UnstageAll unstages all paths and invalidates the cache.

func (*CachedService) Upstream 

func (c *CachedService) Upstream() string

Upstream delegates to the inner service (cached).

func (*CachedService) WorktreeAdd 

func (c *CachedService) WorktreeAdd(path, branch string) error

WorktreeAdd adds a worktree and invalidates the cache.

func (*CachedService) WorktreeList 

func (c *CachedService) WorktreeList() ([]Worktree, error)

WorktreeList delegates to the inner service (cached).

func (*CachedService) WorktreeRemove 

func (c *CachedService) WorktreeRemove(path string) error

WorktreeRemove removes a worktree and invalidates the cache.

type Commit 

type Commit struct {
	Hash        string
	ShortHash   string
	Author      string
	AuthorEmail string
	Date        time.Time
	RelDate     string
	Subject     string
	Body        string
	Parents     []string
	Refs        []Ref
}

Commit represents a single Git commit.

func ParseLogOutput 

func ParseLogOutput(out string) []Commit

ParseLogOutput parses the raw output of git log using our custom format. Optimised: uses IndexByte scanning instead of Split to avoid allocating a large []string for repos with thousands of commits.

type FileStatus 

type FileStatus struct {
	Staging  StatusCode
	Worktree StatusCode
	Path     string
	OrigPath string // Only set for renames/copies.
	IsStaged bool
}

FileStatus represents the status of a single file in the working tree or index.

type GraphEntry 

type GraphEntry struct {
	Graph  string  // e.g. "* ", "| * "
	Commit *Commit // nil for graph-only lines (merge lines, etc.)
}

GraphEntry pairs a commit with its ASCII graph decoration.

func ParseGraphOutput 

func ParseGraphOutput(out string) []GraphEntry

ParseGraphOutput parses `git log --graph` with our custom format.

type Ref 

type Ref struct {
	Name   string
	Type   RefType
	Remote string
}

Ref is a Git reference (branch, tag, HEAD, etc.).

func ParseRefs 

func ParseRefs(raw string) []Ref

ParseRefs parses the %D decoration string into typed Ref values.

type RefType 

type RefType int

RefType classifies a Git reference. 

const (
	RefBranch RefType = iota
	RefRemoteBranch
	RefTag
	RefHead
	RefStash
)

Git reference types.

type Remote 

type Remote struct {
	Name     string
	FetchURL string
	PushURL  string
}

Remote represents a configured Git remote.

func ParseRemoteOutput 

func ParseRemoteOutput(out string) []Remote

ParseRemoteOutput parses `git remote -v`.

type Service 

type Service interface {
	// ── Repository info ──────────────────────────────────────────────
	RepoRoot() string
	GitDir() string
	Head() (string, error)
	IsClean() (bool, error)
	IsMerging() bool
	IsRebasing() bool
	AheadBehind() (ahead, behind int, err error)
	Upstream() string

	// ── Status & staging ─────────────────────────────────────────────
	Status() (*StatusResult, error)
	Stage(paths ...string) error
	StageAll() error
	Unstage(paths ...string) error
	UnstageAll() error
	Discard(paths ...string) error

	// ── Commits ──────────────────────────────────────────────────────
	Commit(message string) error
	CommitAmend(message string) error
	Log(limit int, args ...string) ([]Commit, error)
	LogGraph(limit int) ([]GraphEntry, error)
	Show(hash string) (*Commit, string, error)

	// ── Diff ─────────────────────────────────────────────────────────
	Diff(staged bool, path string) (string, error)
	DiffRange(from, to string) (string, error)

	// ── Branches ─────────────────────────────────────────────────────
	Branches() ([]Branch, error)
	CreateBranch(name string) error
	SwitchBranch(name string) error
	DeleteBranch(name string, force bool) error
	MergeBranch(name string) error
	RenameBranch(oldName, newName string) error

	// ── Stash ────────────────────────────────────────────────────────
	StashList() ([]StashEntry, error)
	StashSave(message string) error
	StashPop(index int) error
	StashApply(index int) error
	StashDrop(index int) error
	StashShow(index int) (string, error)

	// ── Remotes ──────────────────────────────────────────────────────
	Remotes() ([]Remote, error)
	Fetch(remote string) error
	Pull(remote, branch string) error
	Push(remote, branch string, force bool) error

	// ── Worktrees ────────────────────────────────────────────────────
	WorktreeList() ([]Worktree, error)
	WorktreeAdd(path, branch string) error
	WorktreeRemove(path string) error

	// ── Rebase ───────────────────────────────────────────────────────
	RebaseInteractive(onto string) error
	RebaseContinue() error
	RebaseAbort() error

	// ── Bisect ───────────────────────────────────────────────────────
	BisectStart(bad, good string) error
	BisectGood() error
	BisectBad() error
	BisectReset() error
	BisectLog() (string, error)

	// ── Conflict resolution ──────────────────────────────────────────
	ConflictFiles() ([]string, error)
	MarkResolved(path string) error
}

Service defines the contract for all Git operations. Every TUI view depends on this interface, never on exec.Command directly. This makes the application testable via mock implementations.

type StashEntry 

type StashEntry struct {
	Index   int
	Message string
	Branch  string
}

StashEntry represents a single stash entry.

func ParseStashList 

func ParseStashList(out string) []StashEntry

ParseStashList parses `git stash list`.

type StatusCode 

type StatusCode byte

StatusCode represents a single-character Git status indicator. 

const (
	StatusUnmodified  StatusCode = ' '
	StatusModified    StatusCode = 'M'
	StatusTypeChanged StatusCode = 'T'
	StatusAdded       StatusCode = 'A'
	StatusDeleted     StatusCode = 'D'
	StatusRenamed     StatusCode = 'R'
	StatusCopied      StatusCode = 'C'
	StatusUnmerged    StatusCode = 'U'
	StatusUntracked   StatusCode = '?'
	StatusIgnored     StatusCode = '!'
)

Git status codes as single-byte indicators.

func (StatusCode) Label 

func (s StatusCode) Label() string

Label returns a human-readable description of the status.

func (StatusCode) String 

func (s StatusCode) String() string

String returns the single-character representation.

type StatusResult 

type StatusResult struct {
	Staged    []FileStatus
	Unstaged  []FileStatus
	Untracked []FileStatus
	Conflicts []FileStatus
}

StatusResult holds the categorised status of the entire repository.

func ParseStatusOutput 

func ParseStatusOutput(out string) *StatusResult

ParseStatusOutput parses `git status --porcelain=v1 -z`. NUL-delimited scanning avoids allocating a massive []string for repos with thousands of changed files.

func (*StatusResult) TotalCount 

func (sr *StatusResult) TotalCount() int

TotalCount returns the total number of files across all categories.

type Worktree 

type Worktree struct {
	Path   string
	Head   string
	Branch string
	Bare   bool
}

Worktree represents a linked working tree.

func ParseWorktreeList 

func ParseWorktreeList(out string) []Worktree

ParseWorktreeList parses `git worktree list --porcelain`.

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