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Artifact [1ed5c9576e]

Check-ins Using Download Hex

Artifact 1ed5c9576eb96a17e21d934809d22e8380ed664756a7d5e555bc0204c253aed5:

package checkout

import (
	"time"

	"github.com/danmestas/go-libfossil/internal/cone"
	libfossil "github.com/danmestas/go-libfossil/internal/fsltype"
	"github.com/danmestas/go-libfossil/internal/vfile"
	"github.com/danmestas/go-libfossil/simio"
)

// VFileChange — vfile.chnged column values (matches Fossil's vfile states)
type VFileChange int

const (
	VFileNone       VFileChange = 0 // unchanged
	VFileMod        VFileChange = 1 // modified
	VFileMergeMod   VFileChange = 2 // modified via merge
	VFileMergeAdd   VFileChange = 3 // added via merge
	VFileIntMod     VFileChange = 4 // modified via integrate
	VFileIntAdd     VFileChange = 5 // added via integrate
	VFileIsExec     VFileChange = 6 // became executable
	VFileBecameLink VFileChange = 7 // became symlink
	VFileNotExec    VFileChange = 8 // lost executable
	VFileNotLink    VFileChange = 9 // lost symlink
)

// FileChange — checkout-level change types (maps to fsl_ckout_change_e).
// Package vfile owns their meaning; these names keep the checkout API.
type FileChange = vfile.Change

const (
	ChangeNone     = vfile.ChangeNone
	ChangeAdded    = vfile.ChangeAdded
	ChangeRemoved  = vfile.ChangeRemoved
	ChangeMissing  = vfile.ChangeMissing
	ChangeRenamed  = vfile.ChangeRenamed
	ChangeModified = vfile.ChangeModified

	ChangeExecutable = vfile.ChangeExecutable
	ChangeSymlink    = vfile.ChangeSymlink
	ChangeUnexec     = vfile.ChangeUnexec
	ChangeUnlink     = vfile.ChangeUnlink
)

// UpdateChange — file states during extract/update (maps to fsl_ckup_fchange_e)
type UpdateChange int

const (
	UpdateNone UpdateChange = iota
	UpdateAdded
	UpdateAddPropagated
	UpdateRemoved
	UpdateRmPropagated
	UpdateUpdated
	UpdateUpdatedBinary
	UpdateMerged
	UpdateConflictMerged
	UpdateConflictAdded
	UpdateConflictUnmanaged
	UpdateConflictRm
	UpdateConflictSymlink
	UpdateConflictBinary
	UpdateRenamed
	UpdateEdited
)

// RevertChange — revert operation types (maps to fsl_ckout_revert_e)
type RevertChange int

const (
	RevertNone RevertChange = iota
	RevertUnmanage
	RevertRemove
	RevertRename
	RevertPermissions
	RevertContents
)

// ScanFlags — controls ScanChanges behavior
type ScanFlags uint32

const (
	ScanHash       ScanFlags = 1 << iota // hash file content (not just mtime)
	ScanENotFile                         // refuse non-regular files (fossil's CKSIG_ENOTFILE)
	ScanSetMTime                         // update mtime in vfile
	ScanKeepOthers                       // keep other version entries
)

// ManifestFlags — controls WriteManifest behavior
type ManifestFlags int

const (
	ManifestMain ManifestFlags = 1 << iota // write manifest file
	ManifestUUID                           // write manifest.uuid file
)

// OpenOpts configures opening an existing checkout.
type OpenOpts struct {
	Env           *simio.Env // nil → RealEnv
	Observer      Observer   // nil → nopObserver
	SearchParents bool       // search parent dirs for .fslckout
}

// CreateOpts configures creating a new checkout from a repo.
type CreateOpts struct {
	Env      *simio.Env // nil → RealEnv
	Observer Observer   // nil → nopObserver
	// Cone makes the checkout sparse (draft-fossil-sparse-cone-00 §4): only
	// the files it covers are materialized and managed. nil is dense.
	Cone *cone.Cone
}

// ExtractOpts configures file extraction from a checkin.
type ExtractOpts struct {
	Callback func(name string, change UpdateChange) error // per-file notification
	SetMTime bool                                         // as fossil's --setmtime: each file's last check-in time
	DryRun   bool
	Force    bool // overwrite locally modified files
	// Warn receives what fossil's checkout prints as a warning and proceeds
	// past, such as a present R card disagreeing with the manifest's files.
	// nil discards warnings; they never fail the extract.
	Warn func(message string)
}

// UpdateOpts configures updating to a new version with merge.
type UpdateOpts struct {
	TargetRID libfossil.FslID // 0 → auto-calculate via CalcUpdateVersion
	Callback  func(name string, change UpdateChange) error
	SetMTime  bool // as fossil's --setmtime: each file's last check-in time
	DryRun    bool
}

// UpdateResult reports what Update actually did. Paths, not counts: a
// caller needs to know which files to show a user, not merely how many
// changed. All four slices are sorted (sort.Strings) before Update
// returns, so the order is deterministic and safe to compare with
// reflect.DeepEqual — it does not depend on Go's randomized map iteration.
//
// Conflicted is non-empty when three-way merge could not resolve a file
// cleanly and wrote "<<<<<<<"-style conflict markers into it on disk. That
// is a successful update, not a failure — Update still returns a nil error
// in that case. A caller that only checks the error gets today's behavior;
// a caller that wants to detect marker text in the working tree must
// inspect Conflicted. Every path in Conflicted also appears in
// FilesWritten: the marker text is what was written there.
//
// Unmerged lists the files fossil's update also counts as conflicts but
// that hold no markers, left for the caller to reconcile:
//   - a file edited locally that the target deletes: kept on disk as it
//     was, no longer tracked;
//   - a file added locally that the target also adds: the local file kept,
//     now tracked as the target's file, so it shows as edited;
//   - a binary file both the working copy and the target changed: the
//     target's content written (so also in FilesWritten), the working
//     copy saved beside it as NAME-original.
//   - a file edited locally that the target renamed without changing it:
//     left under its old name, untracked, the new name not written (as
//     fossil does; the new name shows as missing).
type UpdateResult struct {
	FilesWritten []string // paths written (added, updated, or merged, clean or not); includes every Conflicted path
	FilesRemoved []string // paths deleted from the working tree
	Conflicted   []string // paths that now contain conflict markers; also present in FilesWritten
	Unmerged     []string // paths left to reconcile without markers (see above)
	// OutOfCone counts the changes a sparse checkout's update applied to
	// files outside its cone: recorded, never written to disk
	// (draft-fossil-sparse-cone-00 §4.4).
	OutOfCone int
}

// ManageOpts configures adding files to tracking.
type ManageOpts struct {
	Paths    []string
	Callback func(name string, added bool) error
}

// ManageCounts reports the result of a Manage operation.
type ManageCounts struct {
	Added, Updated, Skipped int
}

// UnmanageOpts configures removing files from tracking.
type UnmanageOpts struct {
	Paths    []string          // pathnames to unmanage
	VFileIDs []libfossil.FslID // alternative: pass IDs directly
	Callback func(name string) error
}

// EnqueueOpts configures staging files for commit.
type EnqueueOpts struct {
	Paths    []string
	Callback func(name string) error
}

// DequeueOpts configures unstaging files.
type DequeueOpts struct {
	Paths []string // empty → dequeue all
}

// CommitOpts configures creating a checkin from staged files.
type CommitOpts struct {
	Message        string
	User           string
	Branch         string   // empty → current branch
	Tags           []string // additional T-cards
	Delta          bool
	Time           time.Time    // zero → env.Clock.Now()
	PreCommitCheck func() error // nil = no check; non-nil error aborts commit
	AllowConflict  bool         // commit files that hold merge conflict markers
	AllowEmpty     bool         // commit even when nothing changed
}

// RevertOpts configures reverting file changes.
type RevertOpts struct {
	Paths    []string // empty → revert all
	Callback func(name string, change RevertChange) error
}

// RenameOpts configures renaming a tracked file.
type RenameOpts struct {
	From, To string
	DoFsMove bool // also move on filesystem via Storage
	Callback func(from, to string) error
}

// ChangeEntry describes a single file change in the checkout.
type ChangeEntry struct {
	Name     string
	Change   FileChange
	VFileID  libfossil.FslID
	IsExec   bool
	IsLink   bool
	OrigName string // non-empty if renamed
}

// ChangeVisitor is called for each changed file during VisitChanges.
type ChangeVisitor func(entry ChangeEntry) error