class Rugged::Tree

Tree

Attributes

owner[R]
repo[R]

Public Class Methods

diff(repo, tree, diffable[, options]) → diff click to toggle source

Returns a diff between the `tree` and the diffable object that was given. diffable can either be a Rugged::Commit, a Rugged::Tree, a Rugged::Index, or nil.

The tree object will be used as the “old file” side of the diff, while the parent tree or the diffable object will be used for the “new file” side.

If tree or diffable are nil, they will be treated as an empty tree. Passing both as `nil` will raise an exception.

The following options can be passed in the options Hash:

:paths

An array of paths / fnmatch patterns to constrain the diff to a specific set of files. Also see :disable_pathspec_match.

:max_size

An integer specifying the maximum byte size of a file before a it will be treated as binary. The default value is 512MB.

:context_lines

The number of unchanged lines that define the boundary of a hunk (and to display before and after the actual changes). The default is 3.

:interhunk_lines

The maximum number of unchanged lines between hunk boundaries before the hunks will be merged into a one. The default is 0.

:old_prefix

The virtual “directory” to prefix to old filenames in hunk headers. The default is “a”.

:new_prefix

The virtual “directory” to prefix to new filenames in hunk headers. The default is “b”.

:reverse

If true, the sides of the diff will be reversed.

:force_text

If true, all files will be treated as text, disabling binary attributes & detection.

:ignore_whitespace

If true, all whitespace will be ignored.

:ignore_whitespace_change

If true, changes in amount of whitespace will be ignored.

:ignore_whitespace_eol

If true, whitespace at end of line will be ignored.

:ignore_submodules

if true, submodules will be excluded from the diff completely.

:patience

If true, the “patience diff” algorithm will be used (currenlty unimplemented).

:include_ignored

If true, ignored files will be included in the diff.

:include_untracked

If true, untracked files will be included in the diff.

:include_unmodified

If true, unmodified files will be included in the diff.

:recurse_untracked_dirs

Even if :include_untracked is true, untracked directories will only be marked with a single entry in the diff. If this flag is set to true, all files under ignored directories will be included in the diff, too.

:disable_pathspec_match

If true, the given :paths will be applied as exact matches, instead of as fnmatch patterns.

:deltas_are_icase

If true, filename comparisons will be made with case-insensitivity.

:include_untracked_content

if true, untracked content will be contained in the the diff patch text.

:skip_binary_check

If true, diff deltas will be generated without spending time on binary detection. This is useful to improve performance in cases where the actual file content difference is not needed.

:include_typechange

If true, type changes for files will not be interpreted as deletion of the “old file” and addition of the “new file”, but will generate typechange records.

:include_typechange_trees

Even if :include_typechange is true, blob -> tree changes will still usually be handled as a deletion of the blob. If this flag is set to true, blob -> tree changes will be marked as typechanges.

:ignore_filemode

If true, file mode changes will be ignored.

:recurse_ignored_dirs

Even if :include_ignored is true, ignored directories will only be marked with a single entry in the diff. If this flag is set to true, all files under ignored directories will be included in the diff, too.

Examples:

# Emulating `git diff <treeish>`
tree = Rugged::Tree.lookup(repo, "d70d245ed97ed2aa596dd1af6536e4bfdb047b69")
diff = tree.diff(repo.index)
diff.merge!(tree.diff)

# Tree-to-Tree Diff
tree = Rugged::Tree.lookup(repo, "d70d245ed97ed2aa596dd1af6536e4bfdb047b69")
other_tree = Rugged::Tree.lookup(repo, "7a9e0b02e63179929fed24f0a3e0f19168114d10")
diff = tree.diff(other_tree)
static VALUE rb_git_tree_diff_(int argc, VALUE *argv, VALUE self)
{
        git_tree *tree = NULL;
        git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
        git_repository *repo = NULL;
        git_diff *diff = NULL;
        VALUE rb_self, rb_repo, rb_other, rb_options;
        int error;

        rb_scan_args(argc, argv, "22", &rb_repo, &rb_self, &rb_other, &rb_options);
        rugged_parse_diff_options(&opts, rb_options);

        Data_Get_Struct(rb_repo, git_repository, repo);

        if (!NIL_P(rb_self)) {
                if (!rb_obj_is_kind_of(rb_self, rb_cRuggedTree))
                        rb_raise(rb_eTypeError,
                                "At least a Rugged::Tree object is required for diffing");

                Data_Get_Struct(rb_self, git_tree, tree);
        }

        if (NIL_P(rb_other)) {
                if (tree == NULL) {
                        xfree(opts.pathspec.strings);
                        rb_raise(rb_eTypeError, "Need 'old' or 'new' for diffing");
                }

                error = git_diff_tree_to_tree(&diff, repo, tree, NULL, &opts);
        } else {
                if (TYPE(rb_other) == T_STRING)
                        rb_other = rugged_object_rev_parse(rb_repo, rb_other, 1);

                if (rb_obj_is_kind_of(rb_other, rb_cRuggedCommit)) {
                        git_tree *other_tree;
                        git_commit *commit;

                        Data_Get_Struct(rb_other, git_commit, commit);
                        error = git_commit_tree(&other_tree, commit);

                        if (!error) {
                                error = git_diff_tree_to_tree(&diff, repo, tree, other_tree, &opts);
                                git_tree_free(other_tree);
                        }
                } else if (rb_obj_is_kind_of(rb_other, rb_cRuggedTree)) {
                        git_tree *other_tree;

                        Data_Get_Struct(rb_other, git_tree, other_tree);
                        error = git_diff_tree_to_tree(&diff, repo, tree, other_tree, &opts);
                } else if (rb_obj_is_kind_of(rb_other, rb_cRuggedIndex)) {
                        git_index *index;
                        Data_Get_Struct(rb_other, git_index, index);
                        error = git_diff_tree_to_index(&diff, repo, tree, index, &opts);
                } else {
                        xfree(opts.pathspec.strings);
                        rb_raise(rb_eTypeError, "A Rugged::Commit, Rugged::Tree or Rugged::Index instance is required");
                }
        }

        xfree(opts.pathspec.strings);
        rugged_exception_check(error);

        return rugged_diff_new(rb_cRuggedDiff, rb_repo, diff);
}

Public Instance Methods

tree[e] → entry click to toggle source

Return one of the entries from a tree as a Hash. If e is a number, the +e+nth entry from the tree will be returned. If e is a string, the entry with that name will be returned.

If the entry doesn't exist, nil will be returned.

tree[3] #=> {:name => "foo.txt", :type => :blob, :oid => "d8786bfc97485e8d7b19b21fb88c8ef1f199fc3f", :filemode => 0}
tree['bar.txt'] #=> {:name => "bar.txt", :type => :blob, :oid => "de5ba987198bcf2518885f0fc1350e5172cded78", :filemode => 0}
tree['baz.txt'] #=> nil
static VALUE rb_git_tree_get_entry(VALUE self, VALUE entry_id)
{
        git_tree *tree;
        Data_Get_Struct(self, git_tree, tree);

        if (TYPE(entry_id) == T_FIXNUM)
                return rb_git_treeentry_fromC(git_tree_entry_byindex(tree, FIX2INT(entry_id)));

        else if (TYPE(entry_id) == T_STRING)
                return rb_git_treeentry_fromC(git_tree_entry_byname(tree, StringValueCStr(entry_id)));

        else
                rb_raise(rb_eTypeError, "entry_id must be either an index or a filename");
}
count → count click to toggle source

Return the number of entries contained in the tree.

Note that this only applies to entries in the root of the tree, not any other entries contained in sub-folders.

static VALUE rb_git_tree_entrycount(VALUE self)
{
        git_tree *tree;
        Data_Get_Struct(self, git_tree, tree);

        return INT2FIX(git_tree_entrycount(tree));
}
count_recursive(limit=nil) → count click to toggle source

`limit` - The maximum number of blobs to the count in the repository. Rugged will stop walking the tree after `limit` items to avoid long execution times.

Return the number of blobs (up to the limit) contained in the tree and all subtrees.

static VALUE rb_git_tree_entrycount_recursive(int argc, VALUE* argv, VALUE self)
{
        git_tree *tree;
        int error;
        struct rugged_treecount_cb_payload payload;
        VALUE rb_limit;

        Data_Get_Struct(self, git_tree, tree);

        rb_scan_args(argc, argv, "01", &rb_limit);

        payload.limit = -1;
        payload.count = 0;

        if (!NIL_P(rb_limit)) {
                Check_Type(rb_limit, T_FIXNUM);
                payload.limit = FIX2INT(rb_limit);
        }


        error = git_tree_walk(tree, GIT_TREEWALK_PRE, &rugged__treecount_cb, (void *)&payload);

        if (error && giterr_last()->klass == GITERR_CALLBACK) {
                giterr_clear();
                error = 0;
        }

        rugged_exception_check(error);

        return INT2FIX(payload.count);
}
diff(other = nil, options = nil) click to toggle source
# File lib/rugged/tree.rb, line 8
def diff(other = nil, options = nil)
  Tree.diff(repo, self, other, options)
end
diff_workdir([options]) → diff click to toggle source

Returns a diff between a tree and the current workdir.

The tree object will be used as the “old file” side of the diff, while the content of the current workdir will be used for the “new file” side.

See #diff for a list of options that can be passed.

static VALUE rb_git_tree_diff_workdir(int argc, VALUE *argv, VALUE self)
{
        git_tree *tree;
        git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
        git_repository *repo;
        git_diff *diff;
        VALUE owner, rb_options;
        int error;

        rb_scan_args(argc, argv, "00:", &rb_options);
        rugged_parse_diff_options(&opts, rb_options);

        Data_Get_Struct(self, git_tree, tree);
        owner = rugged_owner(self);
        Data_Get_Struct(owner, git_repository, repo);

        error = git_diff_tree_to_workdir(&diff, repo, tree, &opts);

        xfree(opts.pathspec.strings);
        rugged_exception_check(error);

        return rugged_diff_new(rb_cRuggedDiff, owner, diff);
}
each { |entry| block } click to toggle source
each → enumerator

Call block with each of the entries of the subtree as a Hash. If no block is given, an enumerator is returned instead.

Note that only the entries in the root of the tree are yielded; if you need to list also entries in subfolders, use tree.walk instead.

tree.each { |entry| puts entry.inspect }

generates:

{:name => "foo.txt", :type => :blob, :oid => "d8786bfc97485e8d7b19b21fb88c8ef1f199fc3f", :filemode => 0}
{:name => "bar.txt", :type => :blob, :oid => "de5ba987198bcf2518885f0fc1350e5172cded78", :filemode => 0}
...
static VALUE rb_git_tree_each(VALUE self)
{
        git_tree *tree;
        size_t i, count;
        Data_Get_Struct(self, git_tree, tree);

        if (!rb_block_given_p())
                return rb_funcall(self, rb_intern("to_enum"), 0);

        count = git_tree_entrycount(tree);

        for (i = 0; i < count; ++i) {
                const git_tree_entry *entry = git_tree_entry_byindex(tree, i);
                rb_yield(rb_git_treeentry_fromC(entry));
        }

        return Qnil;
}
each_blob() { || ... } click to toggle source

Iterate over the blobs in this tree

# File lib/rugged/tree.rb, line 29
def each_blob
  self.each { |e| yield e if e[:type] == :blob }
end
each_tree() { || ... } click to toggle source

Iterat over the subtrees in this tree

# File lib/rugged/tree.rb, line 34
def each_tree
  self.each { |e| yield e if e[:type] == :tree }
end
get_entry(e) → entry click to toggle source

Return one of the entries from a tree as a Hash. If e is a number, the +e+nth entry from the tree will be returned. If e is a string, the entry with that name will be returned.

If the entry doesn't exist, nil will be returned.

tree[3] #=> {:name => "foo.txt", :type => :blob, :oid => "d8786bfc97485e8d7b19b21fb88c8ef1f199fc3f", :filemode => 0}
tree['bar.txt'] #=> {:name => "bar.txt", :type => :blob, :oid => "de5ba987198bcf2518885f0fc1350e5172cded78", :filemode => 0}
tree['baz.txt'] #=> nil
static VALUE rb_git_tree_get_entry(VALUE self, VALUE entry_id)
{
        git_tree *tree;
        Data_Get_Struct(self, git_tree, tree);

        if (TYPE(entry_id) == T_FIXNUM)
                return rb_git_treeentry_fromC(git_tree_entry_byindex(tree, FIX2INT(entry_id)));

        else if (TYPE(entry_id) == T_STRING)
                return rb_git_treeentry_fromC(git_tree_entry_byname(tree, StringValueCStr(entry_id)));

        else
                rb_raise(rb_eTypeError, "entry_id must be either an index or a filename");
}
get_entry_by_oid(rb_oid) → entry click to toggle source

Return one of the entries from a tree as a Hash, based off the oid SHA.

If the entry doesn't exist, nil will be returned.

This does a full traversal of the every element in the tree, so this method is not especially fast.

tree.get_entry_by_oid("d8786bfc97485e8d7b19b21fb88c8ef1f199fc3f")
#=> {:name => "foo.txt", :type => :blob, :oid => "d8786bfc97485e8d7b19b21fb88c8ef1f199fc3f", :filemode => 0}
static VALUE rb_git_tree_get_entry_by_oid(VALUE self, VALUE rb_oid)
{
        git_tree *tree;
        git_oid oid;
        Data_Get_Struct(self, git_tree, tree);

        Check_Type(rb_oid, T_STRING);
        rugged_exception_check(git_oid_fromstr(&oid, StringValueCStr(rb_oid)));

        return rb_git_treeentry_fromC(git_tree_entry_byid(tree, &oid));
}
inspect() click to toggle source
# File lib/rugged/tree.rb, line 12
def inspect
  data = "#<Rugged::Tree:#{object_id} {oid: #{oid}}>\n"
  self.each { |e| data << "  <\"#{e[:name]}\" #{e[:oid]}>\n" }
  data
end
length → count click to toggle source

Return the number of entries contained in the tree.

Note that this only applies to entries in the root of the tree, not any other entries contained in sub-folders.

static VALUE rb_git_tree_entrycount(VALUE self)
{
        git_tree *tree;
        Data_Get_Struct(self, git_tree, tree);

        return INT2FIX(git_tree_entrycount(tree));
}
merge(p1, p2 = v2, p3 = v3) click to toggle source

tree.merge(other_tree[, ancestor_tree[, options]]) -> Rugged::Index tree.merge(other_tree[, options]) -> Rugged::Index

Merges two trees and returns the a Rugged::Index object that reflects the result of the merge.

The following options can be passed in the options Hash:

:renames

If true, looking for renames will be enabled (`–find-renames`).

:rename_threshold

An integer specifying the minimum similarity of a file to be seen as an eligible rename source (default 50).

:target_limit

An integer specifying the maximum byte size of a file before a it will be treated as binary. The default value is 512MB.

:favor

Specifies how and if conflicts are auto-resolved by favoring a specific file output. Can be one of `:normal`, `:ours`, `:theirs` or `:union`.

static VALUE rb_git_tree_merge(int argc, VALUE *argv, VALUE self)
{
        VALUE rb_other_tree, rb_ancestor_tree, rb_options;
        VALUE rb_repo = rugged_owner(self);

        git_tree *tree, *other_tree, *ancestor_tree;
        git_repository *repo;
        git_index *index;
        git_merge_options opts = GIT_MERGE_OPTIONS_INIT;
        int error;

        if (rb_scan_args(argc, argv, "12", &rb_other_tree, &rb_ancestor_tree, &rb_options) == 2) {
                if (TYPE(rb_ancestor_tree) == T_HASH) {
                        rb_options = rb_ancestor_tree;
                        rb_ancestor_tree = Qnil;
                }
        }

        if (!NIL_P(rb_options)) {
                Check_Type(rb_options, T_HASH);
                rugged_parse_merge_options(&opts, rb_options);
        }

        if (!rb_obj_is_kind_of(rb_other_tree, rb_cRuggedTree))
                rb_raise(rb_eTypeError, "Expecting a Rugged::Tree instance");
        else if (!NIL_P(rb_ancestor_tree) && !rb_obj_is_kind_of(rb_ancestor_tree, rb_cRuggedTree))
                rb_raise(rb_eTypeError, "Expecting a Rugged::Tree instance");

        Data_Get_Struct(self, git_tree, tree);
        Data_Get_Struct(rb_repo, git_repository, repo);
        Data_Get_Struct(rb_other_tree, git_tree, other_tree);

        if (!NIL_P(rb_ancestor_tree))
                Data_Get_Struct(rb_ancestor_tree, git_tree, ancestor_tree);
        else
                ancestor_tree = NULL;

        error = git_merge_trees(&index, repo, ancestor_tree, tree, other_tree, &opts);
        if (error == GIT_EMERGECONFLICT)
                return Qnil;

        rugged_exception_check(error);

        return rugged_index_new(rb_cRuggedIndex, rb_repo, index);
}
path(path) → entry click to toggle source

Retrieve and return a tree entry by its relative path.

static VALUE rb_git_tree_path(VALUE self, VALUE rb_path)
{
        int error;
        git_tree *tree;
        git_tree_entry *entry;
        VALUE rb_entry;
        Data_Get_Struct(self, git_tree, tree);
        Check_Type(rb_path, T_STRING);

        error = git_tree_entry_bypath(&entry, tree, StringValueCStr(rb_path));
        rugged_exception_check(error);

        rb_entry = rb_git_treeentry_fromC(entry);
        git_tree_entry_free(entry);

        return rb_entry;
}
walk(mode) { |root, entry| block } click to toggle source
walk(mode) → Iterator

Walk tree with the given mode (either :preorder or :postorder) and yield to block every entry in tree and all its subtrees, as a Hash. The block also takes a root, the relative path in the traversal, starting from the root of the original tree.

If the block returns a falsy value, that entry and its sub-entries (in the case of a folder) will be skipped for the iteration.

If no block is given, an Iterator is returned instead.

tree.walk(:postorder) { |root, entry| puts "#{root}#{entry[:name]} [#{entry[:oid]}]" }

generates:

USAGE.rb [02bae86c91f96b5fdb6b1cf06f5aa3612139e318]
ext [23f135b3c576b6ac4785821888991d7089f35db1]
ext/rugged [25c88faa9302e34e16664eb9c990deb2bcf77849]
ext/rugged/extconf.rb [40c1aa8a8cec8ca444ed5758e3f00ecff093070a]
...
static VALUE rb_git_tree_walk(VALUE self, VALUE rb_mode)
{
        git_tree *tree;
        int error, mode = 0, exception = 0;
        ID id_mode;

        Data_Get_Struct(self, git_tree, tree);

        if (!rb_block_given_p())
                return rb_funcall(self, rb_intern("to_enum"), 2, CSTR2SYM("walk"), rb_mode);

        Check_Type(rb_mode, T_SYMBOL);
        id_mode = SYM2ID(rb_mode);

        if (id_mode == rb_intern("preorder"))
                mode = GIT_TREEWALK_PRE;
        else if (id_mode == rb_intern("postorder"))
                mode = GIT_TREEWALK_POST;
        else
                rb_raise(rb_eTypeError,
                                "Invalid iteration mode. Expected `:preorder` or `:postorder`");

        error = git_tree_walk(tree, mode, &rugged__treewalk_cb, (void *)&exception);

        if (exception)
                rb_jump_tag(exception);

        rugged_exception_check(error);

        return Qnil;
}
walk_blobs(mode=:postorder) { |root, e| ... } click to toggle source

Walks the tree but only yields blobs

# File lib/rugged/tree.rb, line 19
def walk_blobs(mode=:postorder)
  self.walk(mode) { |root, e| yield root, e if e[:type] == :blob }
end
walk_trees(mode=:postorder) { |root, e| ... } click to toggle source

Walks the tree but only yields subtrees

# File lib/rugged/tree.rb, line 24
def walk_trees(mode=:postorder)
  self.walk(mode) { |root, e| yield root, e if e[:type] == :tree }
end