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rugged_branch.c
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rugged_branch.c
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/*
* The MIT License
*
* Copyright (c) 2013 GitHub, Inc
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "rugged.h"
extern VALUE rb_mRugged;
extern VALUE rb_cRuggedRepo;
extern VALUE rb_cRuggedObject;
extern VALUE rb_cRuggedReference;
VALUE rb_cRuggedBranch;
static inline VALUE rugged_branch_new(VALUE owner, git_reference *ref)
{
return rugged_ref_new(rb_cRuggedBranch, owner, ref);
}
static int parse_branch_type(VALUE rb_filter)
{
ID id_filter;
Check_Type(rb_filter, T_SYMBOL);
id_filter = SYM2ID(rb_filter);
if (id_filter == rb_intern("local")) {
return GIT_BRANCH_LOCAL;
} else if (id_filter == rb_intern("remote")) {
return GIT_BRANCH_REMOTE;
} else {
rb_raise(rb_eTypeError,
"Invalid branch filter. Expected `:remote`, `:local` or `nil`");
}
}
/*
* call-seq:
* Branch.create(repository, name, target, force = false) -> branch
*
* Create a new branch in +repository+, with the given +name+, and pointing
* to the +target+.
*
* +name+ needs to be a branch name, not an absolute reference path
* (e.g. 'development' instead of '/refs/heads/development')
*
* +target+ needs to be an existing commit in the given +repository+.
*
* If +force+ is +true+, any existing branches will be overwritten.
*
* Returns a Rugged::Branch object with the newly created branch.
*/
static VALUE rb_git_branch_create(int argc, VALUE *argv, VALUE self)
{
git_reference *branch;
git_commit *target = NULL;
git_repository *repo = NULL;
int error, force = 0;
VALUE rb_repo, rb_name, rb_target, rb_force;
rb_scan_args(argc, argv, "31", &rb_repo, &rb_name, &rb_target, &rb_force);
if (!rb_obj_is_kind_of(rb_repo, rb_cRuggedRepo)) {
rb_raise(rb_eTypeError, "Expecting a Rugged::Repository instance");
}
Data_Get_Struct(rb_repo, git_repository, repo);
Check_Type(rb_name, T_STRING);
target = (git_commit *)rugged_object_get(repo, rb_target, GIT_OBJ_COMMIT);
if (!NIL_P(rb_force)) {
force = rugged_parse_bool(rb_force);
}
error = git_branch_create(&branch, repo, StringValueCStr(rb_name), target, force);
git_commit_free(target);
rugged_exception_check(error);
return rugged_branch_new(rb_repo, branch);
}
/*
* call-seq:
* Branch.lookup(repository, name, branch_type = :local) -> branch
*
* Lookup a branch in +repository+, with the given +name+.
*
* +name+ needs to be a branch name, not an absolute reference path
* (e.g. 'development' instead of '/refs/heads/development')
*
* +branch_type+ specifies whether the looked up branch is a local branch
* or a remote one. It defaults to looking up local branches.
*
* Returns the looked up branch, or +nil+ if the branch doesn't exist.
*/
static VALUE rb_git_branch_lookup(int argc, VALUE *argv, VALUE self)
{
git_reference *branch;
git_repository *repo;
VALUE rb_repo, rb_name, rb_type;
int error;
int branch_type = GIT_BRANCH_LOCAL;
rb_scan_args(argc, argv, "21", &rb_repo, &rb_name, &rb_type);
if (!rb_obj_is_kind_of(rb_repo, rb_cRuggedRepo)) {
rb_raise(rb_eTypeError, "Expecting a Rugged::Repository instance");
}
Data_Get_Struct(rb_repo, git_repository, repo);
Check_Type(rb_name, T_STRING);
if (!NIL_P(rb_type))
branch_type = parse_branch_type(rb_type);
error = git_branch_lookup(&branch, repo, StringValueCStr(rb_name), branch_type);
if (error == GIT_ENOTFOUND)
return Qnil;
rugged_exception_check(error);
return rugged_branch_new(rb_repo, branch);
}
/*
* call-seq:
* branch.delete!
*
* Remove a branch from the repository. The branch object will become invalidated
* and won't be able to be used for any other operations.
*/
static VALUE rb_git_branch_delete(VALUE self)
{
git_reference *branch = NULL;
Data_Get_Struct(self, git_reference, branch);
rugged_exception_check(
git_branch_delete(branch)
);
return Qnil;
}
static int cb_branch__each_name(const char *branch_name, git_branch_t branch_type, void *payload)
{
rb_yield(rugged_str_new2(branch_name, rb_utf8_encoding()));
return GIT_OK;
}
static int cb_branch__each_obj(const char *branch_name, git_branch_t branch_type, void *payload)
{
VALUE rb_repo = (VALUE)payload;
git_reference *branch;
git_repository *repo;
Data_Get_Struct(rb_repo, git_repository, repo);
rugged_exception_check(
git_branch_lookup(&branch, repo, branch_name, branch_type)
);
rb_yield(rugged_branch_new(rb_repo, branch));
return 0;
}
static VALUE each_branch(int argc, VALUE *argv, VALUE self, int branch_names_only)
{
VALUE rb_repo, rb_filter;
git_repository *repo;
int error;
int filter = (GIT_BRANCH_LOCAL | GIT_BRANCH_REMOTE);
rb_scan_args(argc, argv, "11", &rb_repo, &rb_filter);
if (!rb_block_given_p()) {
VALUE symbol = branch_names_only ? CSTR2SYM("each_name") : CSTR2SYM("each");
return rb_funcall(self, rb_intern("to_enum"), 3, symbol, rb_repo, rb_filter);
}
if (!rb_obj_is_kind_of(rb_repo, rb_cRuggedRepo)) {
rb_raise(rb_eTypeError, "Expecting a Rugged::Repository instance");
}
if (!NIL_P(rb_filter))
filter = parse_branch_type(rb_filter);
Data_Get_Struct(rb_repo, git_repository, repo);
if (branch_names_only) {
error = git_branch_foreach(repo, filter, &cb_branch__each_name, NULL);
} else {
error = git_branch_foreach(repo, filter, &cb_branch__each_obj, (void *)rb_repo);
}
rugged_exception_check(error);
return Qnil;
}
/*
* call-seq:
* Branch.each_name(repository, filter = :all) { |branch_name| block }
* Branch.each_name(repository, filter = :all) -> Iterator
*
* Iterate through the names of the branches in +repository+. Iteration can be
* optionally filtered to yield only +:local+ or +:remote+ branches.
*
* The given block will be called once with the name of each branch as a +String+.
* If no block is given, an iterator will be returned.
*/
static VALUE rb_git_branch_each_name(int argc, VALUE *argv, VALUE self)
{
return each_branch(argc, argv, self, 1);
}
/*
* call-seq:
* Branch.each(repository, filter = :all) { |branch| block }
* Branch.each(repository, filter = :all) -> Iterator
*
* Iterate through the branches in +repository+. Iteration can be
* optionally filtered to yield only +:local+ or +:remote+ branches.
*
* The given block will be called once with a +Rugged::Branch+ object
* for each branch in the repository. If no block is given, an iterator
* will be returned.
*/
static VALUE rb_git_branch_each(int argc, VALUE *argv, VALUE self)
{
return each_branch(argc, argv, self, 0);
}
/*
* call-seq:
* branch.move(new_name, force = false)
* branch.rename(new_name, force = false)
*
* Rename a branch to +new_name+.
*
* +new_name+ needs to be a branch name, not an absolute reference path
* (e.g. 'development' instead of '/refs/heads/development')
*
* If +force+ is +true+, the branch will be renamed even if a branch
* with +new_name+ already exists.
*/
static VALUE rb_git_branch_move(int argc, VALUE *argv, VALUE self)
{
VALUE rb_new_branch_name, rb_force;
git_reference *old_branch = NULL, *new_branch = NULL;
int error, force = 0;
rb_scan_args(argc, argv, "11", &rb_new_branch_name, &rb_force);
Data_Get_Struct(self, git_reference, old_branch);
Check_Type(rb_new_branch_name, T_STRING);
if (!NIL_P(rb_force))
force = rugged_parse_bool(rb_force);
error = git_branch_move(&new_branch, old_branch, StringValueCStr(rb_new_branch_name), force);
rugged_exception_check(error);
return rugged_branch_new(rugged_owner(self), new_branch);
}
void Init_rugged_branch()
{
rb_cRuggedBranch = rb_define_class_under(rb_mRugged, "Branch", rb_cRuggedReference);
rb_define_singleton_method(rb_cRuggedBranch, "create", rb_git_branch_create, -1);
rb_define_singleton_method(rb_cRuggedBranch, "lookup", rb_git_branch_lookup, -1);
rb_define_singleton_method(rb_cRuggedBranch, "each_name", rb_git_branch_each_name, -1);
rb_define_singleton_method(rb_cRuggedBranch, "each", rb_git_branch_each, -1);
rb_define_method(rb_cRuggedBranch, "delete!", rb_git_branch_delete, 0);
rb_define_method(rb_cRuggedBranch, "rename", rb_git_branch_move, -1);
rb_define_method(rb_cRuggedBranch, "move", rb_git_branch_move, -1);
}