1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
|
package packfile
import (
"bytes"
"encoding/base64"
"fmt"
"os"
"runtime"
"testing"
"time"
"gopkg.in/src-d/go-git.v4/core"
"gopkg.in/src-d/go-git.v4/storage/memory"
"github.com/dustin/go-humanize"
. "gopkg.in/check.v1"
)
func Test(t *testing.T) { TestingT(t) }
type ReaderSuite struct{}
var _ = Suite(&ReaderSuite{})
var packFileWithEmptyObjects = "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"
func (s *ReaderSuite) TestReadPackfile(c *C) {
data, _ := base64.StdEncoding.DecodeString(packFileWithEmptyObjects)
f := bytes.NewReader(data)
r := NewStream(f)
d := NewDecoder(r)
sto := memory.NewObjectStorage()
err := d.Decode(sto)
c.Assert(err, IsNil)
AssertObjects(c, sto, []string{
"778c85ff95b5514fea0ba4c7b6a029d32e2c3b96",
"db4002e880a08bf6cc7217512ad937f1ac8824a2",
"551fe11a9ef992763b7e0be4500cf7169f2f8575",
"3d8d2705c6b936ceff0020989eca90db7a372609",
"af01d4cac3441bba4bdd4574938e1d231ee5d45e",
"e69de29bb2d1d6434b8b29ae775ad8c2e48c5391",
"85553e8dc42a79b8a483904dcfcdb048fc004055",
"a028c5b32117ed11bd310a61d50ca10827d853f1",
"c6b65deb8be57436ceaf920b82d51a3fc59830bd",
"90b451628d8449f4c47e627eb1392672e5ccec98",
"496d6428b9cf92981dc9495211e6e1120fb6f2ba",
})
}
func (s *ReaderSuite) TestReadPackfileOFSDelta(c *C) {
s.testReadPackfileGitFixture(c, "fixtures/git-fixture.ofs-delta", OFSDeltaFormat)
}
func (s *ReaderSuite) TestReadPackfileREFDelta(c *C) {
s.testReadPackfileGitFixture(c, "fixtures/git-fixture.ref-delta", REFDeltaFormat)
}
func (s *ReaderSuite) testReadPackfileGitFixture(c *C, file string, format Format) {
f, err := os.Open(file)
c.Assert(err, IsNil)
r := NewSeekable(f)
d := NewDecoder(r)
sto := memory.NewObjectStorage()
err = d.Decode(sto)
c.Assert(err, IsNil)
AssertObjects(c, sto, []string{
"918c48b83bd081e863dbe1b80f8998f058cd8294",
"af2d6a6954d532f8ffb47615169c8fdf9d383a1a",
"1669dce138d9b841a518c64b10914d88f5e488ea",
"a5b8b09e2f8fcb0bb99d3ccb0958157b40890d69",
"b8e471f58bcbca63b07bda20e428190409c2db47",
"35e85108805c84807bc66a02d91535e1e24b38b9",
"b029517f6300c2da0f4b651b8642506cd6aaf45d",
"32858aad3c383ed1ff0a0f9bdf231d54a00c9e88",
"d3ff53e0564a9f87d8e84b6e28e5060e517008aa",
"c192bd6a24ea1ab01d78686e417c8bdc7c3d197f",
"d5c0f4ab811897cadf03aec358ae60d21f91c50d",
"49c6bb89b17060d7b4deacb7b338fcc6ea2352a9",
"cf4aa3b38974fb7d81f367c0830f7d78d65ab86b",
"9dea2395f5403188298c1dabe8bdafe562c491e3",
"586af567d0bb5e771e49bdd9434f5e0fb76d25fa",
"9a48f23120e880dfbe41f7c9b7b708e9ee62a492",
"5a877e6a906a2743ad6e45d99c1793642aaf8eda",
"c8f1d8c61f9da76f4cb49fd86322b6e685dba956",
"a8d315b2b1c615d43042c3a62402b8a54288cf5c",
"a39771a7651f97faf5c72e08224d857fc35133db",
"880cd14280f4b9b6ed3986d6671f907d7cc2a198",
"fb72698cab7617ac416264415f13224dfd7a165e",
"4d081c50e250fa32ea8b1313cf8bb7c2ad7627fd",
"eba74343e2f15d62adedfd8c883ee0262b5c8021",
"c2d30fa8ef288618f65f6eed6e168e0d514886f4",
"8dcef98b1d52143e1e2dbc458ffe38f925786bf2",
"aa9b383c260e1d05fbbf6b30a02914555e20c725",
"6ecf0ef2c2dffb796033e5a02219af86ec6584e5",
})
}
func AssertObjects(c *C, s *memory.ObjectStorage, expects []string) {
c.Assert(len(expects), Equals, len(s.Objects))
for _, exp := range expects {
obt, err := s.Get(core.NewHash(exp))
c.Assert(err, IsNil)
c.Assert(obt.Hash().String(), Equals, exp)
}
}
func (s *ReaderSuite) BenchmarkFixtureRef(c *C) {
for i := 0; i < c.N; i++ {
readFromFile(c, "fixtures/git-fixture.ref-delta", REFDeltaFormat)
}
}
func (s *ReaderSuite) BenchmarkFixtureOfs(c *C) {
for i := 0; i < c.N; i++ {
readFromFile(c, "fixtures/git-fixture.ofs-delta", OFSDeltaFormat)
}
}
func (s *ReaderSuite) BenchmarkCandyJS(c *C) {
for i := 0; i < c.N; i++ {
readFromFile(c, "/tmp/go-candyjs", REFDeltaFormat)
}
}
func (s *ReaderSuite) BenchmarkSymfony(c *C) {
for i := 0; i < c.N; i++ {
readFromFile(c, "/tmp/symonfy", REFDeltaFormat)
}
}
func (s *ReaderSuite) BenchmarkGit(c *C) {
for i := 0; i < c.N; i++ {
readFromFile(c, "/tmp/git", REFDeltaFormat)
}
}
func (s *ReaderSuite) _testMemory(c *C, format Format) {
var b, a runtime.MemStats
start := time.Now()
runtime.ReadMemStats(&b)
p := readFromFile(c, "/tmp/symfony.ofs-delta", format)
runtime.ReadMemStats(&a)
fmt.Println("OFS--->")
fmt.Println("Alloc", a.Alloc-b.Alloc, humanize.Bytes(a.Alloc-b.Alloc))
fmt.Println("TotalAlloc", a.TotalAlloc-b.TotalAlloc, humanize.Bytes(a.TotalAlloc-b.TotalAlloc))
fmt.Println("HeapAlloc", a.HeapAlloc-b.HeapAlloc, humanize.Bytes(a.HeapAlloc-b.HeapAlloc))
fmt.Println("HeapSys", a.HeapSys, humanize.Bytes(a.HeapSys-b.HeapSys))
fmt.Println("objects", len(p.Objects))
fmt.Println("time", time.Since(start))
}
func (s *ReaderSuite) _TestMemoryOFS(c *C) {
s._testMemory(c, OFSDeltaFormat)
}
func (s *ReaderSuite) _TestMemoryREF(c *C) {
s._testMemory(c, REFDeltaFormat)
}
func readFromFile(c *C, file string, format Format) *memory.ObjectStorage {
f, err := os.Open(file)
c.Assert(err, IsNil)
r := NewSeekable(f)
d := NewDecoder(r)
sto := memory.NewObjectStorage()
err = d.Decode(sto)
c.Assert(err, IsNil)
return sto
}
|
