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Split TreeEntry's equality and sorting #488

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Merged
jdavid merged 1 commit into from
Mar 16, 2015
Merged

Split TreeEntry's equality and sorting #488

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20 changes: 18 additions & 2 deletions src/tree.c
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Original file line number Diff line number Diff line change
Expand Up @@ -87,10 +87,20 @@ TreeEntry_oid__get__(TreeEntry *self)
return TreeEntry_id__get__(self);
}

static int
compare_ids(TreeEntry *a, TreeEntry *b)
{
const git_oid *id_a, *id_b;
id_a = git_tree_entry_id(a->entry);
id_b = git_tree_entry_id(b->entry);
return git_oid_cmp(id_a, id_b);
}

PyObject *
TreeEntry_richcompare(PyObject *a, PyObject *b, int op)
{
PyObject *res;
TreeEntry *ta, *tb;
int cmp;

/* We only support comparing to another tree entry */
Expand All @@ -99,7 +109,14 @@ TreeEntry_richcompare(PyObject *a, PyObject *b, int op)
return Py_NotImplemented;
}

cmp =git_tree_entry_cmp(((TreeEntry*)a)->entry, ((TreeEntry*)b)->entry);
ta = (TreeEntry *) a;
tb = (TreeEntry *) b;

/* This is sorting order, if they sort equally, we still need to compare the ids */
cmp = git_tree_entry_cmp(ta->entry, tb->entry);
if (cmp == 0)
cmp = compare_ids(ta, tb);

switch (op) {
case Py_LT:
res = (cmp <= 0) ? Py_True: Py_False;
Expand Down Expand Up @@ -147,7 +164,6 @@ PyGetSetDef TreeEntry_getseters[] = {
{NULL}
};


PyDoc_STRVAR(TreeEntry__doc__, "TreeEntry objects.");

PyTypeObject TreeEntryType = {
Expand Down
13 changes: 13 additions & 0 deletions test/test_tree.py
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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,7 @@
import operator
import unittest

from pygit2 import TreeEntry
from . import utils


Expand Down Expand Up @@ -71,6 +72,18 @@ def test_read_tree(self):
self.assertTreeEntryEqual(tree['c/d'], sha, 'd', 0o0100644)
self.assertRaisesWithArg(KeyError, 'ab/cd', lambda: tree['ab/cd'])

def test_equality(self):
tree_a = self.repo['18e2d2e9db075f9eb43bcb2daa65a2867d29a15e']
tree_b = self.repo['2ad1d3456c5c4a1c9e40aeeddb9cd20b409623c8']

self.assertNotEqual(tree_a['a'], tree_b['a'])
self.assertNotEqual(tree_a['a'], tree_b['b'])
self.assertEqual(tree_a['b'], tree_b['b'])

def test_sorting(self):
tree_a = self.repo['18e2d2e9db075f9eb43bcb2daa65a2867d29a15e']
self.assertEqual(list(tree_a), sorted(reversed(list(tree_a))))
self.assertNotEqual(list(tree_a), reversed(list(tree_a)))

def test_read_subtree(self):
tree = self.repo[TREE_SHA]
Expand Down