refactor!: return sets of git type flags instead of integers

lib/src/git_types.dart

@@ -1,121 +1,173 @@
 /// Basic type of any Git reference.
 class ReferenceType {
-  const ReferenceType._(this._value);
+  const ReferenceType._(this._value, this._name);
   final int _value;
+  final String _name;
 
   /// Invalid reference.
-  static const invalid = ReferenceType._(0);
+  static const invalid = ReferenceType._(0, 'invalid');
 
   /// A reference that points at an object id.
-  static const direct = ReferenceType._(1);
+  static const direct = ReferenceType._(1, 'direct');
 
   /// A reference that points at another reference.
-  static const symbolic = ReferenceType._(2);
+  static const symbolic = ReferenceType._(2, 'symbolic');
 
-  static const all = ReferenceType._(3);
+  static const all = ReferenceType._(3, 'all');
+
+  static const List<ReferenceType> values = [invalid, direct, symbolic, all];
 
   int get value => _value;
+
+  @override
+  String toString() => 'ReferenceType.$_name';
 }
 
 /// Valid modes for index and tree entries.
 class GitFilemode {
-  const GitFilemode._(this._value);
+  const GitFilemode._(this._value, this._name);
   final int _value;
+  final String _name;
 
-  static const unreadable = GitFilemode._(0);
+  static const unreadable = GitFilemode._(0, 'unreadable');
-  static const tree = GitFilemode._(16384);
+  static const tree = GitFilemode._(16384, 'tree');
-  static const blob = GitFilemode._(33188);
+  static const blob = GitFilemode._(33188, 'blob');
-  static const blobExecutable = GitFilemode._(33261);
+  static const blobExecutable = GitFilemode._(33261, 'blobExecutable');
-  static const link = GitFilemode._(40960);
+  static const link = GitFilemode._(40960, 'link');
-  static const commit = GitFilemode._(57344);
+  static const commit = GitFilemode._(57344, 'commit');
+
+  static const List<GitFilemode> values = [
+    unreadable,
+    tree,
+    blob,
+    blobExecutable,
+    link,
+    commit,
+  ];
 
   int get value => _value;
+
+  @override
+  String toString() => 'GitFilemode.$_name';
 }
 
 /// Flags to specify the sorting which a revwalk should perform.
 class GitSort {
-  const GitSort._(this._value);
+  const GitSort._(this._value, this._name);
   final int _value;
+  final String _name;
 
   /// Sort the output with the same default method from `git`: reverse
   /// chronological order. This is the default sorting for new walkers.
-  static const none = GitSort._(0);
+  static const none = GitSort._(0, 'none');
 
   /// Sort the repository contents in topological order (no parents before
   /// all of its children are shown); this sorting mode can be combined
   /// with time sorting to produce `git`'s `--date-order``.
-  static const topological = GitSort._(1);
+  static const topological = GitSort._(1, 'topological');
 
   /// Sort the repository contents by commit time;
   /// this sorting mode can be combined with topological sorting.
-  static const time = GitSort._(2);
+  static const time = GitSort._(2, 'time');
 
   /// Iterate through the repository contents in reverse order; this sorting mode
   /// can be combined with any of the above.
-  static const reverse = GitSort._(4);
+  static const reverse = GitSort._(4, 'reverse');
+
+  static const List<GitSort> values = [none, topological, time, reverse];
 
   int get value => _value;
+
+  @override
+  String toString() => 'GitSort.$_name';
 }
 
 /// Basic type (loose or packed) of any Git object.
 class GitObject {
-  const GitObject._(this._value);
+  const GitObject._(this._value, this._name);
   final int _value;
+  final String _name;
 
   /// Object can be any of the following.
-  static const any = GitObject._(-2);
+  static const any = GitObject._(-2, 'any');
 
   /// Object is invalid.
-  static const invalid = GitObject._(-1);
+  static const invalid = GitObject._(-1, 'invalid');
 
   /// A commit object.
-  static const commit = GitObject._(1);
+  static const commit = GitObject._(1, 'commit');
 
   /// A tree (directory listing) object.
-  static const tree = GitObject._(2);
+  static const tree = GitObject._(2, 'tree');
 
   /// A file revision object.
-  static const blob = GitObject._(3);
+  static const blob = GitObject._(3, 'blob');
 
   /// An annotated tag object.
-  static const tag = GitObject._(4);
+  static const tag = GitObject._(4, 'tag');
 
   /// A delta, base is given by an offset.
-  static const offsetDelta = GitObject._(6);
+  static const offsetDelta = GitObject._(6, 'offsetDelta');
 
   /// A delta, base is given by object id.
-  static const refDelta = GitObject._(7);
+  static const refDelta = GitObject._(7, 'refDelta');
+
+  static const List<GitObject> values = [
+    any,
+    invalid,
+    commit,
+    tree,
+    blob,
+    tag,
+    offsetDelta,
+    refDelta,
+  ];
 
   int get value => _value;
+
+  @override
+  String toString() => 'GitObject.$_name';
 }
 
 /// Revparse flags, indicate the intended behavior of the spec.
 class GitRevParse {
-  const GitRevParse._(this._value);
+  const GitRevParse._(this._value, this._name);
   final int _value;
+  final String _name;
 
   /// The spec targeted a single object.
-  static const single = GitRevParse._(1);
+  static const single = GitRevParse._(1, 'single');
 
   /// The spec targeted a range of commits.
-  static const range = GitRevParse._(2);
+  static const range = GitRevParse._(2, 'range');
 
   /// The spec used the '...' operator, which invokes special semantics.
-  static const mergeBase = GitRevParse._(4);
+  static const mergeBase = GitRevParse._(4, 'mergeBase');
+
+  static const List<GitRevParse> values = [single, range, mergeBase];
 
   int get value => _value;
+
+  @override
+  String toString() => 'GitRevParse.$_name';
 }
 
 /// Basic type of any Git branch.
 class GitBranch {
-  const GitBranch._(this._value);
+  const GitBranch._(this._value, this._name);
   final int _value;
+  final String _name;
 
-  static const local = GitBranch._(1);
+  static const local = GitBranch._(1, 'local');
-  static const remote = GitBranch._(2);
+  static const remote = GitBranch._(2, 'remote');
-  static const all = GitBranch._(3);
+  static const all = GitBranch._(3, 'all');
+
+  static const List<GitBranch> values = [local, remote, all];
 
   int get value => _value;
+
+  @override
+  String toString() => 'GitBranch.$_name';
 }
 
 /// Status flags for a single file.
@@ -127,73 +179,115 @@ class GitBranch {
 /// `GitStatus.wt` set of flags represent the status of the file in the
 /// working directory relative to the index.
 class GitStatus {
-  const GitStatus._(this._value);
+  const GitStatus._(this._value, this._name);
   final int _value;
+  final String _name;
 
-  static const current = GitStatus._(0);
+  static const current = GitStatus._(0, 'current');
-  static const indexNew = GitStatus._(1);
+  static const indexNew = GitStatus._(1, 'indexNew');
-  static const indexModified = GitStatus._(2);
+  static const indexModified = GitStatus._(2, 'indexModified');
-  static const indexDeleted = GitStatus._(4);
+  static const indexDeleted = GitStatus._(4, 'indexDeleted');
-  static const indexRenamed = GitStatus._(8);
+  static const indexRenamed = GitStatus._(8, 'indexRenamed');
-  static const indexTypeChange = GitStatus._(16);
+  static const indexTypeChange = GitStatus._(16, 'indexTypeChange');
-  static const wtNew = GitStatus._(128);
+  static const wtNew = GitStatus._(128, 'wtNew');
-  static const wtModified = GitStatus._(256);
+  static const wtModified = GitStatus._(256, 'wtModified');
-  static const wtDeleted = GitStatus._(512);
+  static const wtDeleted = GitStatus._(512, 'wtDeleted');
-  static const wtTypeChange = GitStatus._(1024);
+  static const wtTypeChange = GitStatus._(1024, 'wtTypeChange');
-  static const wtRenamed = GitStatus._(2048);
+  static const wtRenamed = GitStatus._(2048, 'wtRenamed');
-  static const wtUnreadable = GitStatus._(4096);
+  static const wtUnreadable = GitStatus._(4096, 'wtUnreadable');
-  static const ignored = GitStatus._(16384);
+  static const ignored = GitStatus._(16384, 'ignored');
-  static const conflicted = GitStatus._(32768);
+  static const conflicted = GitStatus._(32768, 'conflicted');
+
+  static const List<GitStatus> values = [
+    current,
+    indexNew,
+    indexModified,
+    indexDeleted,
+    indexRenamed,
+    indexTypeChange,
+    wtNew,
+    wtModified,
+    wtDeleted,
+    wtTypeChange,
+    wtRenamed,
+    wtUnreadable,
+    ignored,
+    conflicted,
+  ];
 
   int get value => _value;
+
+  @override
+  String toString() => 'GitStatus.$_name';
 }
 
 /// The results of `mergeAnalysis` indicate the merge opportunities.
 class GitMergeAnalysis {
-  const GitMergeAnalysis._(this._value);
+  const GitMergeAnalysis._(this._value, this._name);
   final int _value;
+  final String _name;
 
   /// No merge is possible (unused).
-  static const none = GitMergeAnalysis._(0);
+  static const none = GitMergeAnalysis._(0, 'none');
 
   /// A "normal" merge; both HEAD and the given merge input have diverged
-  /// from their common ancestor.  The divergent commits must be merged.
+  /// from their common ancestor. The divergent commits must be merged.
-  static const normal = GitMergeAnalysis._(1);
+  static const normal = GitMergeAnalysis._(1, 'normal');
 
   /// All given merge inputs are reachable from HEAD, meaning the
   /// repository is up-to-date and no merge needs to be performed.
-  static const upToDate = GitMergeAnalysis._(2);
+  static const upToDate = GitMergeAnalysis._(2, 'upToDate');
 
   /// The given merge input is a fast-forward from HEAD and no merge
-  /// needs to be performed.  Instead, the client can check out the
+  /// needs to be performed. Instead, the client can check out the
   /// given merge input.
-  static const fastForward = GitMergeAnalysis._(4);
+  static const fastForward = GitMergeAnalysis._(4, 'fastForward');
 
   /// The HEAD of the current repository is "unborn" and does not point to
-  /// a valid commit.  No merge can be performed, but the caller may wish
+  /// a valid commit. No merge can be performed, but the caller may wish
   /// to simply set HEAD to the target commit(s).
-  static const unborn = GitMergeAnalysis._(8);
+  static const unborn = GitMergeAnalysis._(8, 'unborn');
+
+  static const List<GitMergeAnalysis> values = [
+    normal,
+    upToDate,
+    fastForward,
+    unborn,
+  ];
 
   int get value => _value;
+
+  @override
+  String toString() => 'GitMergeAnalysis.$_name';
 }
 
 /// The user's stated preference for merges.
 class GitMergePreference {
-  const GitMergePreference._(this._value);
+  const GitMergePreference._(this._value, this._name);
   final int _value;
+  final String _name;
 
   /// No configuration was found that suggests a preferred behavior for merge.
-  static const none = GitMergePreference._(0);
+  static const none = GitMergePreference._(0, 'none');
 
   /// There is a `merge.ff=false` configuration setting, suggesting that
   /// the user does not want to allow a fast-forward merge.
-  static const noFastForward = GitMergePreference._(1);
+  static const noFastForward = GitMergePreference._(1, 'noFastForward');
 
   /// There is a `merge.ff=only` configuration setting, suggesting that
   /// the user only wants fast-forward merges.
-  static const fastForwardOnly = GitMergePreference._(2);
+  static const fastForwardOnly = GitMergePreference._(2, 'fastForwardOnly');
+
+  static const List<GitMergePreference> values = [
+    none,
+    noFastForward,
+    fastForwardOnly,
+  ];
 
   int get value => _value;
+
+  @override
+  String toString() => 'GitMergePreference.$_name';
 }
 
 /// Repository state.
@@ -201,113 +295,174 @@ class GitMergePreference {
 /// These values represent possible states for the repository to be in,
 /// based on the current operation which is ongoing.
 class GitRepositoryState {
-  const GitRepositoryState._(this._value);
+  const GitRepositoryState._(this._value, this._name);
   final int _value;
+  final String _name;
 
-  static const none = GitRepositoryState._(0);
+  static const none = GitRepositoryState._(0, 'none');
-  static const merge = GitRepositoryState._(1);
+  static const merge = GitRepositoryState._(1, 'merge');
-  static const revert = GitRepositoryState._(2);
+  static const revert = GitRepositoryState._(2, 'revert');
-  static const reverSequence = GitRepositoryState._(3);
+  static const revertSequence = GitRepositoryState._(3, 'revertSequence');
-  static const cherrypick = GitRepositoryState._(4);
+  static const cherrypick = GitRepositoryState._(4, 'cherrypick');
-  static const cherrypickSequence = GitRepositoryState._(5);
+  static const cherrypickSequence =
-  static const bisect = GitRepositoryState._(6);
+      GitRepositoryState._(5, 'cherrypickSequence');
-  static const rebase = GitRepositoryState._(7);
+  static const bisect = GitRepositoryState._(6, 'bisect');
-  static const rebaseInteractive = GitRepositoryState._(8);
+  static const rebase = GitRepositoryState._(7, 'rebase');
-  static const rebaseMerge = GitRepositoryState._(9);
+  static const rebaseInteractive = GitRepositoryState._(8, 'rebaseInteractive');
-  static const applyMailbox = GitRepositoryState._(10);
+  static const rebaseMerge = GitRepositoryState._(9, 'rebaseMerge');
-  static const applyMailboxOrRebase = GitRepositoryState._(11);
+  static const applyMailbox = GitRepositoryState._(10, 'applyMailbox');
+  static const applyMailboxOrRebase =
+      GitRepositoryState._(11, 'applyMailboxOrRebase');
+
+  static const List<GitRepositoryState> values = [
+    none,
+    merge,
+    revert,
+    revertSequence,
+    cherrypick,
+    cherrypickSequence,
+    bisect,
+    rebase,
+    rebaseInteractive,
+    rebaseMerge,
+    applyMailbox,
+    applyMailboxOrRebase,
+  ];
 
   int get value => _value;
+
+  @override
+  String toString() => 'GitRepositoryState.$_name';
 }
 
 /// Flags for merge options.
 class GitMergeFlag {
-  const GitMergeFlag._(this._value);
+  const GitMergeFlag._(this._value, this._name);
   final int _value;
+  final String _name;
 
   /// Detect renames that occur between the common ancestor and the "ours"
   /// side or the common ancestor and the "theirs" side.  This will enable
   /// the ability to merge between a modified and renamed file.
-  static const findRenames = GitMergeFlag._(1);
+  static const findRenames = GitMergeFlag._(1, 'findRenames');
 
   /// If a conflict occurs, exit immediately instead of attempting to
   /// continue resolving conflicts.  The merge operation will fail with
   /// and no index will be returned.
-  static const failOnConflict = GitMergeFlag._(2);
+  static const failOnConflict = GitMergeFlag._(2, 'failOnConflict');
 
   /// Do not write the REUC extension on the generated index.
-  static const skipREUC = GitMergeFlag._(4);
+  static const skipREUC = GitMergeFlag._(4, 'skipREUC');
 
   /// If the commits being merged have multiple merge bases, do not build
   /// a recursive merge base (by merging the multiple merge bases),
   /// instead simply use the first base.
-  static const noRecursive = GitMergeFlag._(8);
+  static const noRecursive = GitMergeFlag._(8, 'noRecursive');
+
+  static const List<GitMergeFlag> values = [
+    findRenames,
+    failOnConflict,
+    skipREUC,
+    noRecursive,
+  ];
 
   int get value => _value;
+
+  @override
+  String toString() => 'GitMergeFlag.$_name';
 }
 
 /// Merge file favor options to instruct the file-level merging functionality
 /// on how to deal with conflicting regions of the files.
 class GitMergeFileFavor {
-  const GitMergeFileFavor._(this._value);
+  const GitMergeFileFavor._(this._value, this._name);
   final int _value;
+  final String _name;
 
   /// When a region of a file is changed in both branches, a conflict
   /// will be recorded in the index. This is the default.
-  static const normal = GitMergeFileFavor._(0);
+  static const normal = GitMergeFileFavor._(0, 'normal');
 
   /// When a region of a file is changed in both branches, the file
   /// created in the index will contain the "ours" side of any conflicting
   /// region. The index will not record a conflict.
-  static const ours = GitMergeFileFavor._(1);
+  static const ours = GitMergeFileFavor._(1, 'ours');
 
   /// When a region of a file is changed in both branches, the file
   /// created in the index will contain the "theirs" side of any conflicting
   /// region. The index will not record a conflict.
-  static const theirs = GitMergeFileFavor._(2);
+  static const theirs = GitMergeFileFavor._(2, 'theirs');
 
   /// When a region of a file is changed in both branches, the file
   /// created in the index will contain each unique line from each side,
   /// which has the result of combining both files. The index will not
   /// record a conflict.
-  static const union = GitMergeFileFavor._(3);
+  static const union = GitMergeFileFavor._(3, 'union');
+
+  static const List<GitMergeFileFavor> values = [
+    normal,
+    ours,
+    theirs,
+    union,
+  ];
 
   int get value => _value;
+
+  @override
+  String toString() => 'GitMergeFileFavor.$_name';
 }
 
 /// File merging flags.
 class GitMergeFileFlag {
-  const GitMergeFileFlag._(this._value);
+  const GitMergeFileFlag._(this._value, this._name);
   final int _value;
+  final String _name;
 
   /// Defaults.
-  static const defaults = GitMergeFileFlag._(0);
+  static const defaults = GitMergeFileFlag._(0, 'defaults');
 
   /// Create standard conflicted merge files.
-  static const styleMerge = GitMergeFileFlag._(1);
+  static const styleMerge = GitMergeFileFlag._(1, 'styleMerge');
 
   /// Create diff3-style files.
-  static const styleDiff3 = GitMergeFileFlag._(2);
+  static const styleDiff3 = GitMergeFileFlag._(2, 'styleDiff3');
 
   /// Condense non-alphanumeric regions for simplified diff file.
-  static const simplifyAlnum = GitMergeFileFlag._(4);
+  static const simplifyAlnum = GitMergeFileFlag._(4, 'simplifyAlnum');
 
   /// Ignore all whitespace.
-  static const ignoreWhitespace = GitMergeFileFlag._(8);
+  static const ignoreWhitespace = GitMergeFileFlag._(8, 'ignoreWhitespace');
 
   /// Ignore changes in amount of whitespace.
-  static const ignoreWhitespaceChange = GitMergeFileFlag._(16);
+  static const ignoreWhitespaceChange =
+      GitMergeFileFlag._(16, 'ignoreWhitespaceChange');
 
   /// Ignore whitespace at end of line.
-  static const ignoreWhitespaceEOL = GitMergeFileFlag._(32);
+  static const ignoreWhitespaceEOL =
+      GitMergeFileFlag._(32, 'ignoreWhitespaceEOL');
 
   /// Use the "patience diff" algorithm.
-  static const diffPatience = GitMergeFileFlag._(64);
+  static const diffPatience = GitMergeFileFlag._(64, 'diffPatience');
 
   /// Take extra time to find minimal diff.
-  static const diffMinimal = GitMergeFileFlag._(128);
+  static const diffMinimal = GitMergeFileFlag._(128, 'diffMinimal');
+
+  static const List<GitMergeFileFlag> values = [
+    defaults,
+    styleMerge,
+    styleDiff3,
+    simplifyAlnum,
+    ignoreWhitespace,
+    ignoreWhitespaceChange,
+    ignoreWhitespaceEOL,
+    diffPatience,
+    diffMinimal,
+  ];
 
   int get value => _value;
+
+  @override
+  String toString() => 'GitMergeFileFlag.$_name';
 }
 
 /// Checkout behavior flags.
@@ -316,11 +471,12 @@ class GitMergeFileFlag {
 /// to match a target tree.  Unlike git checkout, it does not move the HEAD
 /// commit for you - use `setHead` or the like to do that.
 class GitCheckout {
-  const GitCheckout._(this._value);
+  const GitCheckout._(this._value, this._name);
   final int _value;
+  final String _name;
 
   /// Default is a dry run, no actual updates.
-  static const none = GitCheckout._(0);
+  static const none = GitCheckout._(0, 'none');
 
   /// Allow safe updates that cannot overwrite uncommitted data.
   /// If the uncommitted changes don't conflict with the checked out files,
@@ -328,65 +484,97 @@ class GitCheckout {
   ///
   /// Mutually exclusive with [GitCheckout.force].
   /// [GitCheckout.force] takes precedence over [GitCheckout.safe].
-  static const safe = GitCheckout._(1);
+  static const safe = GitCheckout._(1, 'safe');
 
   /// Allow all updates to force working directory to look like index.
   ///
   /// Mutually exclusive with [GitCheckout.safe].
   /// [GitCheckout.force] takes precedence over [GitCheckout.safe].
-  static const force = GitCheckout._(2);
+  static const force = GitCheckout._(2, 'force');
 
   /// Allow checkout to recreate missing files.
-  static const recreateMissing = GitCheckout._(4);
+  static const recreateMissing = GitCheckout._(4, 'recreateMissing');
 
   /// Allow checkout to make safe updates even if conflicts are found.
-  static const allowConflicts = GitCheckout._(16);
+  static const allowConflicts = GitCheckout._(16, 'allowConflicts');
 
   /// Remove untracked files not in index (that are not ignored).
-  static const removeUntracked = GitCheckout._(32);
+  static const removeUntracked = GitCheckout._(32, 'removeUntracked');
 
   /// Remove ignored files not in index.
-  static const removeIgnored = GitCheckout._(64);
+  static const removeIgnored = GitCheckout._(64, 'removeIgnored');
 
   /// Only update existing files, don't create new ones.
-  static const updateOnly = GitCheckout._(128);
+  static const updateOnly = GitCheckout._(128, 'updateOnly');
 
   /// Normally checkout updates index entries as it goes; this stops that.
   /// Implies [GitCheckout.dontWriteIndex].
-  static const dontUpdateIndex = GitCheckout._(256);
+  static const dontUpdateIndex = GitCheckout._(256, 'dontUpdateIndex');
 
   /// Don't refresh index/config/etc before doing checkout.
-  static const noRefresh = GitCheckout._(512);
+  static const noRefresh = GitCheckout._(512, 'noRefresh');
 
   /// Allow checkout to skip unmerged files.
-  static const skipUnmerged = GitCheckout._(1024);
+  static const skipUnmerged = GitCheckout._(1024, 'skipUnmerged');
 
   /// For unmerged files, checkout stage 2 from index.
-  static const useOurs = GitCheckout._(2048);
+  static const useOurs = GitCheckout._(2048, 'useOurs');
 
   /// For unmerged files, checkout stage 3 from index.
-  static const useTheirs = GitCheckout._(4096);
+  static const useTheirs = GitCheckout._(4096, 'useTheirs');
 
   /// Treat pathspec as simple list of exact match file paths.
-  static const disablePathspecMatch = GitCheckout._(8192);
+  static const disablePathspecMatch =
+      GitCheckout._(8192, 'disablePathspecMatch');
 
   /// Ignore directories in use, they will be left empty.
-  static const skipLockedDirectories = GitCheckout._(262144);
+  static const skipLockedDirectories =
+      GitCheckout._(262144, 'skipLockedDirectories');
 
   /// Don't overwrite ignored files that exist in the checkout target.
-  static const dontOverwriteIgnored = GitCheckout._(524288);
+  static const dontOverwriteIgnored =
+      GitCheckout._(524288, 'dontOverwriteIgnored');
 
   /// Write normal merge files for conflicts.
-  static const conflictStyleMerge = GitCheckout._(1048576);
+  static const conflictStyleMerge =
+      GitCheckout._(1048576, 'conflictStyleMerge');
 
   /// Include common ancestor data in diff3 format files for conflicts.
-  static const conflictStyleDiff3 = GitCheckout._(2097152);
+  static const conflictStyleDiff3 =
+      GitCheckout._(2097152, 'conflictStyleDiff3');
 
   /// Don't overwrite existing files or folders.
-  static const dontRemoveExisting = GitCheckout._(4194304);
+  static const dontRemoveExisting =
+      GitCheckout._(4194304, 'dontRemoveExisting');
 
   /// Normally checkout writes the index upon completion; this prevents that.
-  static const dontWriteIndex = GitCheckout._(8388608);
+  static const dontWriteIndex = GitCheckout._(8388608, 'dontWriteIndex');
+
+  static const List<GitCheckout> values = [
+    none,
+    safe,
+    force,
+    recreateMissing,
+    allowConflicts,
+    removeUntracked,
+    removeIgnored,
+    updateOnly,
+    dontUpdateIndex,
+    noRefresh,
+    skipUnmerged,
+    useOurs,
+    useTheirs,
+    disablePathspecMatch,
+    skipLockedDirectories,
+    dontOverwriteIgnored,
+    conflictStyleMerge,
+    conflictStyleDiff3,
+    dontRemoveExisting,
+    dontWriteIndex,
+  ];
 
   int get value => _value;
+
+  @override
+  String toString() => 'GitCheckout.$_name';
 }

lib/src/index.dart

@@ -208,7 +208,10 @@ class IndexEntry {
   String get sha => _oidToHex(_indexEntryPointer.ref.id);
 
   /// Returns the UNIX file attributes of a index entry.
-  GitFilemode get mode => intToGitFilemode(_indexEntryPointer.ref.mode);
+  GitFilemode get mode {
+    final modeInt = _indexEntryPointer.ref.mode;
+    return GitFilemode.values.singleWhere((mode) => modeInt == mode.value);
+  }
 
   /// Sets the UNIX file attributes of a index entry.
   set mode(GitFilemode mode) => _indexEntryPointer.ref.mode = mode.value;

lib/src/repository.dart

@@ -194,7 +194,11 @@ class Repository {
 
   /// Returns the status of a git repository - ie, whether an operation
   /// (merge, cherry-pick, etc) is in progress.
-  int get state => bindings.state(_repoPointer);
+  GitRepositoryState get state {
+    final stateInt = bindings.state(_repoPointer);
+    return GitRepositoryState.values
+        .singleWhere((flag) => stateInt == flag.value);
+  }
 
   /// Removes all the metadata associated with an ongoing command like
   /// merge, revert, cherry-pick, etc. For example: MERGE_HEAD, MERGE_MSG, etc.
@@ -357,7 +361,7 @@ class Repository {
   /// Returns the list of commits starting from provided [sha] hex string.
   ///
   /// If [sorting] isn't provided default will be used (reverse chronological order, like in git).
-  List<Commit> log(String sha, [List<GitSort> sorting = const [GitSort.none]]) {
+  List<Commit> log(String sha, [Set<GitSort> sorting = const {GitSort.none}]) {
     final oid = Oid.fromSHA(this, sha);
     final walker = RevWalk(this);
 
@@ -454,8 +458,8 @@ class Repository {
   /// Checks status of the repository and returns map of file paths and their statuses.
   ///
   /// Returns empty map if there are no changes in statuses.
-  Map<String, int> get status {
+  Map<String, Set<GitStatus>> get status {
-    var result = <String, int>{};
+    var result = <String, Set<GitStatus>>{};
     var list = status_bindings.listNew(_repoPointer);
     var count = status_bindings.listEntryCount(list);
 
@@ -471,7 +475,15 @@ class Repository {
             .cast<Utf8>()
             .toDartString();
       }
-      result[path] = entry.ref.status;
+      var statuses = <GitStatus>{};
+      // Skipping GitStatus.current because entry that is in the list can't be without changes
+      // but `&` on `0` value falsly adds it to the set of flags
+      for (var flag in GitStatus.values.skip(1)) {
+        if (entry.ref.status & flag.value == flag.value) {
+          statuses.add(flag);
+        }
+      }
+      result[path] = statuses;
     }
 
     status_bindings.listFree(list);
@@ -487,7 +499,23 @@ class Repository {
   /// through looking for the path that you are interested in.
   ///
   /// Throws a [LibGit2Error] if error occured.
-  int statusFile(String path) => status_bindings.file(_repoPointer, path);
+  Set<GitStatus> statusFile(String path) {
+    final statusInt = status_bindings.file(_repoPointer, path);
+    var statuses = <GitStatus>{};
+
+    if (statusInt == GitStatus.current.value) {
+      statuses.add(GitStatus.current);
+    } else {
+      // Skipping GitStatus.current because `&` on `0` value falsly adds it to the set of flags
+      for (var flag in GitStatus.values.skip(1)) {
+        if (statusInt & flag.value == flag.value) {
+          statuses.add(flag);
+        }
+      }
+    }
+
+    return statuses;
+  }
 
   /// Finds a merge base between two commits.
   ///
@@ -509,14 +537,30 @@ class Repository {
   /// respectively.
   ///
   /// Throws a [LibGit2Error] if error occured.
-  List<int> mergeAnalysis(Oid theirHead, [String ourRef = 'HEAD']) {
+  List<Set<dynamic>> mergeAnalysis(Oid theirHead, [String ourRef = 'HEAD']) {
     final ref = references[ourRef];
     final head = commit_bindings.annotatedLookup(
       _repoPointer,
       theirHead.pointer,
     );
 
-    final result = merge_bindings.analysis(_repoPointer, ref.pointer, head, 1);
+    var result = <Set<dynamic>>[];
+    var analysisSet = <GitMergeAnalysis>{};
+    final analysisInt = merge_bindings.analysis(
+      _repoPointer,
+      ref.pointer,
+      head,
+      1,
+    );
+    for (var analysis in GitMergeAnalysis.values) {
+      if (analysisInt[0] & analysis.value == analysis.value) {
+        analysisSet.add(analysis);
+      }
+    }
+    result.add(analysisSet);
+    result.add(
+      {GitMergePreference.values.singleWhere((e) => analysisInt[1] == e.value)},
+    );
 
     commit_bindings.annotatedFree(head.value);
     ref.free();
@@ -553,19 +597,15 @@ class Repository {
     required Commit ourCommit,
     required Commit theirCommit,
     GitMergeFileFavor favor = GitMergeFileFavor.normal,
-    List<GitMergeFlag> mergeFlags = const [GitMergeFlag.findRenames],
+    Set<GitMergeFlag> mergeFlags = const {GitMergeFlag.findRenames},
-    List<GitMergeFileFlag> fileFlags = const [GitMergeFileFlag.defaults],
+    Set<GitMergeFileFlag> fileFlags = const {GitMergeFileFlag.defaults},
   }) {
     var opts = <String, int>{};
     opts['favor'] = favor.value;
-    opts['mergeFlags'] = mergeFlags.fold(
+    opts['mergeFlags'] =
-      0,
+        mergeFlags.fold(0, (previousValue, e) => previousValue | e.value);
-      (previousValue, element) => previousValue + element.value,
+    opts['fileFlags'] =
-    );
+        fileFlags.fold(0, (previousValue, e) => previousValue | e.value);
-    opts['fileFlags'] = fileFlags.fold(
-      0,
-      (previousValue, element) => previousValue + element.value,
-    );
 
     final result = merge_bindings.mergeCommits(
       _repoPointer,
@@ -638,17 +678,15 @@ class Repository {
   /// HEAD will not be set to the reference [refName].
   void checkout({
     String refName = '',
-    List<GitCheckout> strategy = const [
+    Set<GitCheckout> strategy = const {
       GitCheckout.safe,
       GitCheckout.recreateMissing
-    ],
+    },
     String? directory,
     List<String>? paths,
   }) {
-    final int strat = strategy.fold(
+    final int strat =
-      0,
+        strategy.fold(0, (previousValue, e) => previousValue | e.value);
-      (previousValue, element) => previousValue + element.value,
-    );
 
     if (refName.isEmpty) {
       checkout_bindings.index(_repoPointer, strat, directory, paths);

lib/src/revparse.dart

@@ -78,14 +78,14 @@ class RevSpec {
   }
 
   /// The intent of the revspec.
-  GitRevParse get flags {
+  Set<GitRevParse> get flags {
-    final flag = _revSpecPointer.ref.flags;
+    final flagInt = _revSpecPointer.ref.flags;
-    if (flag == 1) {
+    var flags = <GitRevParse>{};
-      return GitRevParse.single;
+    for (var flag in GitRevParse.values) {
-    } else if (flag == 2) {
+      if (flagInt & flag.value == flag.value) {
-      return GitRevParse.range;
+        flags.add(flag);
-    } else {
+      }
-      return GitRevParse.mergeBase;
     }
+    return flags;
   }
 }

lib/src/revwalk.dart

@@ -36,8 +36,11 @@ class RevWalk {
   /// Changing the sorting mode resets the walker.
   ///
   /// Throws a [LibGit2Error] if error occured.
-  void sorting(List<GitSort> sorting) {
+  void sorting(Set<GitSort> sorting) {
-    final sort = sorting.fold(0, (previousValue, e) => e.value);
+    final int sort = sorting.fold(
+      0,
+      (previousValue, e) => previousValue | e.value,
+    );
     bindings.sorting(_revWalkPointer, sort);
   }
 

lib/src/tree.dart

@@ -86,7 +86,8 @@ class TreeEntry {
 
   /// Returns the UNIX file attributes of a tree entry.
   GitFilemode get filemode {
-    return intToGitFilemode(bindings.entryFilemode(_treeEntryPointer));
+    final modeInt = bindings.entryFilemode(_treeEntryPointer);
+    return GitFilemode.values.singleWhere((mode) => modeInt == mode.value);
   }
 
   @override

lib/src/util.dart

@@ -1,7 +1,6 @@
 import 'dart:io';
 import 'dart:ffi';
 import 'bindings/libgit2_bindings.dart';
-import 'git_types.dart';
 
 DynamicLibrary loadLibrary() {
   if (Platform.isLinux || Platform.isAndroid || Platform.isFuchsia) {
@@ -26,22 +25,3 @@ bool isValidShaHex(String str) {
   return hexRegExp.hasMatch(str) &&
       (GIT_OID_MINPREFIXLEN <= str.length && GIT_OID_HEXSZ >= str.length);
 }
-
-GitFilemode intToGitFilemode(int i) {
-  switch (i) {
-    case 0:
-      return GitFilemode.unreadable;
-    case 16384:
-      return GitFilemode.tree;
-    case 33188:
-      return GitFilemode.blob;
-    case 33261:
-      return GitFilemode.blobExecutable;
-    case 40960:
-      return GitFilemode.link;
-    case 57344:
-      return GitFilemode.commit;
-    default:
-      return GitFilemode.unreadable;
-  }
-}

test/checkout_test.dart

@@ -29,7 +29,7 @@ void main() {
       File('${tmpDir}feature_file').writeAsStringSync('edit');
       expect(repo.status, contains('feature_file'));
 
-      repo.checkout(refName: 'HEAD', strategy: [GitCheckout.force]);
+      repo.checkout(refName: 'HEAD', strategy: {GitCheckout.force});
       expect(repo.status, isEmpty);
     });
 
@@ -37,7 +37,10 @@ void main() {
       File('${repo.workdir}feature_file').writeAsStringSync('edit');
       expect(repo.status, contains('feature_file'));
 
-      repo.checkout(strategy: [GitCheckout.force]);
+      repo.checkout(strategy: {
+        GitCheckout.force,
+        GitCheckout.conflictStyleMerge,
+      });
       expect(repo.status, isEmpty);
     });
 
@@ -90,7 +93,12 @@ void main() {
         refName: 'refs/heads/feature',
         paths: ['another_feature_file'],
       );
-      expect(repo.status, {'another_feature_file': GitStatus.indexNew.value});
+      expect(
+        repo.status,
+        {
+          'another_feature_file': {GitStatus.indexNew}
+        },
+      );
     });
   });
 }

test/merge_test.dart

@@ -31,7 +31,8 @@ void main() {
             repo['c68ff54aabf660fcdd9a2838d401583fe31249e3'] as Commit;
 
         final result = repo.mergeAnalysis(commit.id);
-        expect(result[0], GitMergeAnalysis.upToDate.value);
+        expect(result[0], {GitMergeAnalysis.upToDate});
+        expect(result[1], {GitMergePreference.none});
         expect(repo.status, isEmpty);
 
         commit.free();
@@ -42,7 +43,7 @@ void main() {
             repo['c68ff54aabf660fcdd9a2838d401583fe31249e3'] as Commit;
 
         final result = repo.mergeAnalysis(commit.id, 'refs/tags/v0.1');
-        expect(result[0], GitMergeAnalysis.upToDate.value);
+        expect(result[0], {GitMergeAnalysis.upToDate});
         expect(repo.status, isEmpty);
 
         commit.free();
@@ -61,7 +62,7 @@ void main() {
         final result = repo.mergeAnalysis(theirHead.id, ffBranch.name);
         expect(
           result[0],
-          GitMergeAnalysis.fastForward.value + GitMergeAnalysis.normal.value,
+          {GitMergeAnalysis.fastForward, GitMergeAnalysis.normal},
         );
         expect(repo.status, isEmpty);
 
@@ -75,7 +76,7 @@ void main() {
             repo['5aecfa0fb97eadaac050ccb99f03c3fb65460ad4'] as Commit;
 
         final result = repo.mergeAnalysis(commit.id);
-        expect(result[0], GitMergeAnalysis.normal.value);
+        expect(result[0], {GitMergeAnalysis.normal});
         expect(repo.status, isEmpty);
 
         commit.free();
@@ -87,13 +88,18 @@ void main() {
       final index = repo.index;
 
       final result = repo.mergeAnalysis(conflictBranch.target);
-      expect(result[0], GitMergeAnalysis.normal.value);
+      expect(result[0], {GitMergeAnalysis.normal});
 
       repo.merge(conflictBranch.target);
       expect(index.hasConflicts, true);
       expect(index.conflicts.length, 1);
-      expect(repo.state, GitRepositoryState.merge.value);
+      expect(repo.state, GitRepositoryState.merge);
-      expect(repo.status, {'conflict_file': GitStatus.conflicted.value});
+      expect(
+        repo.status,
+        {
+          'conflict_file': {GitStatus.conflicted}
+        },
+      );
 
       final conflictedFile = index.conflicts['conflict_file']!;
       expect(conflictedFile.ancestor, null);
@@ -104,7 +110,12 @@ void main() {
       index.write();
       expect(index.hasConflicts, false);
       expect(index.conflicts, isEmpty);
-      expect(repo.status, {'conflict_file': GitStatus.indexModified.value});
+      expect(
+        repo.status,
+        {
+          'conflict_file': {GitStatus.indexModified}
+        },
+      );
 
       index.free();
       conflictBranch.free();
@@ -172,6 +183,32 @@ void main() {
         ourCommit.free();
         theirCommit.free();
       });
+
+      test('successfully merges with provided merge and file flags', () {
+        final theirCommit =
+            repo['5aecfa0fb97eadaac050ccb99f03c3fb65460ad4'] as Commit;
+        final ourCommit =
+            repo['14905459d775f3f56a39ebc2ff081163f7da3529'] as Commit;
+
+        final mergeIndex = repo.mergeCommits(
+          ourCommit: ourCommit,
+          theirCommit: theirCommit,
+          mergeFlags: {
+            GitMergeFlag.findRenames,
+            GitMergeFlag.noRecursive,
+          },
+          fileFlags: {
+            GitMergeFileFlag.ignoreWhitespace,
+            GitMergeFileFlag.ignoreWhitespaceEOL,
+            GitMergeFileFlag.styleMerge,
+          },
+        );
+        expect(mergeIndex.conflicts, isEmpty);
+
+        mergeIndex.free();
+        ourCommit.free();
+        theirCommit.free();
+      });
     });
 
     group('merge trees', () {
@@ -246,7 +283,7 @@ void main() {
     test('successfully cherry-picks commit', () {
       final cherry = repo['5aecfa0fb97eadaac050ccb99f03c3fb65460ad4'] as Commit;
       repo.cherryPick(cherry);
-      expect(repo.state, GitRepositoryState.cherrypick.value);
+      expect(repo.state, GitRepositoryState.cherrypick);
       expect(repo.message, 'add another feature file\n');
       final index = repo.index;
       expect(index.conflicts, isEmpty);

test/repository_test.dart

@@ -343,7 +343,13 @@ void main() {
         final index = repo.index;
         index.remove('file');
         index.add('new_file.txt');
-        expect(repo.status, {'file': 132, 'new_file.txt': 1});
+        expect(
+          repo.status,
+          {
+            'file': {GitStatus.indexDeleted, GitStatus.wtNew},
+            'new_file.txt': {GitStatus.indexNew}
+          },
+        );
 
         index.free();
       });
@@ -351,7 +357,11 @@ void main() {
       test('returns status of a single file for provided path', () {
         final index = repo.index;
         index.remove('file');
-        expect(repo.statusFile('file'), 132);
+        expect(
+          repo.statusFile('file'),
+          {GitStatus.indexDeleted, GitStatus.wtNew},
+        );
+        expect(repo.statusFile('.gitignore'), {GitStatus.current});
 
         index.free();
       });

test/revparse_test.dart

@@ -81,7 +81,7 @@ void main() {
 
       expect(revspec.from.id.sha, headSHA);
       expect(revspec.to, isNull);
-      expect(revspec.flags, GitRevParse.single);
+      expect(revspec.flags, {GitRevParse.single});
 
       revspec.from.free();
 
@@ -89,7 +89,7 @@ void main() {
 
       expect(revspec.from.id.sha, parentSHA);
       expect(revspec.to?.id.sha, '5aecfa0fb97eadaac050ccb99f03c3fb65460ad4');
-      expect(revspec.flags, GitRevParse.range);
+      expect(revspec.flags, {GitRevParse.range});
 
       revspec.from.free();
       revspec.to?.free();
@@ -98,7 +98,7 @@ void main() {
 
       expect(revspec.from.id.sha, headSHA);
       expect(revspec.to?.id.sha, '5aecfa0fb97eadaac050ccb99f03c3fb65460ad4');
-      expect(revspec.flags, GitRevParse.mergeBase);
+      expect(revspec.flags, {GitRevParse.range, GitRevParse.mergeBase});
       expect(
         repo.mergeBase(revspec.from.id.sha, revspec.to!.id.sha),
         isA<Oid>(),

test/revwalk_test.dart

@@ -53,7 +53,7 @@ void main() {
       final start = Oid.fromSHA(repo, log.first);
 
       walker.push(start);
-      walker.sorting([GitSort.reverse]);
+      walker.sorting({GitSort.reverse});
       final commits = walker.walk();
 
       for (var i = 0; i < commits.length; i++) {
@@ -77,7 +77,7 @@ void main() {
         expect(timeSortedCommits[i].id.sha, log[i]);
       }
 
-      walker.sorting([GitSort.time, GitSort.reverse]);
+      walker.sorting({GitSort.time, GitSort.reverse});
       final reverseSortedCommits = walker.walk();
       for (var i = 0; i < reverseSortedCommits.length; i++) {
         expect(reverseSortedCommits[i].id.sha, log.reversed.toList()[i]);