Documentation
¶
Overview ¶
Package ulreq implements encoding and decoding upload-request messages from a git-upload-pack command.
Index ¶
Examples ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
This section is empty.
Types ¶
type Decoder ¶
type Decoder struct {
// contains filtered or unexported fields
}
A Decoder reads and decodes AdvRef values from an input stream.
func NewDecoder ¶
NewDecoder returns a new decoder that reads from r.
Will not read more data from r than necessary.
func (*Decoder) Decode ¶
Decode reads the next upload-request form its input and stores it in the value pointed to by v.
Example ¶
// Here is a raw advertised-ref message.
raw := "" +
"005bwant 1111111111111111111111111111111111111111 ofs-delta sysref=HEAD:/refs/heads/master\n" +
"0032want 2222222222222222222222222222222222222222\n" +
"0032want 3333333333333333333333333333333333333333\n" +
"0035shallow aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n" +
"0035shallow bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" +
"001cdeepen-since 1420167845\n" + // 2015-01-02 03:04:05 +0000 UTC
pktline.FlushString
// Use the raw message as our input.
input := strings.NewReader(raw)
// Create the Decoder reading from our input.
d := NewDecoder(input)
// Decode the input into a newly allocated UlReq value.
ur := New()
_ = d.Decode(ur) // error check ignored for brevity
// Do something interesting with the UlReq, e.g. print its contents.
fmt.Println("capabilities =", ur.Capabilities.String())
fmt.Println("wants =", ur.Wants)
fmt.Println("shallows =", ur.Shallows)
switch depth := ur.Depth.(type) {
case DepthCommits:
fmt.Println("depth =", int(depth))
case DepthSince:
fmt.Println("depth =", time.Time(depth))
case DepthReference:
fmt.Println("depth =", string(depth))
}
Output: capabilities = ofs-delta sysref=HEAD:/refs/heads/master wants = [1111111111111111111111111111111111111111 2222222222222222222222222222222222222222 3333333333333333333333333333333333333333] shallows = [aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb] depth = 2015-01-02 03:04:05 +0000 UTC
type Depth ¶
type Depth interface {
// contains filtered or unexported methods
}
Depth values stores the desired depth of the requested packfile: see DepthCommit, DepthSince and DepthReference.
type DepthCommits ¶
type DepthCommits int
DepthCommits values stores the maximum number of requested commits in the packfile. Zero means infinite. A negative value will have undefined consecuences.
type DepthReference ¶
type DepthReference string
DepthReference requests only commits not to found in the specified reference.
type DepthSince ¶
DepthSince values requests only commits newer than the specified time.
type Encoder ¶
type Encoder struct {
// contains filtered or unexported fields
}
An Encoder writes UlReq values to an output stream.
func NewEncoder ¶
NewEncoder returns a new encoder that writes to w.
func (*Encoder) Encode ¶
Encode writes the UlReq encoding of v to the stream.
All the payloads will end with a newline character. Wants and shallows are sorted alphabetically. A depth of 0 means no depth request is sent.
Example ¶
// Create an empty UlReq with the contents you want...
ur := New()
// Add a couple of wants
ur.Wants = append(ur.Wants, core.NewHash("3333333333333333333333333333333333333333"))
ur.Wants = append(ur.Wants, core.NewHash("1111111111111111111111111111111111111111"))
ur.Wants = append(ur.Wants, core.NewHash("2222222222222222222222222222222222222222"))
// And some capabilities you will like the server to use
ur.Capabilities.Add("sysref", "HEAD:/refs/heads/master")
ur.Capabilities.Add("ofs-delta")
// Add a couple of shallows
ur.Shallows = append(ur.Shallows, core.NewHash("bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"))
ur.Shallows = append(ur.Shallows, core.NewHash("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"))
// And retrict the answer of the server to commits newer than "2015-01-02 03:04:05 UTC"
since := time.Date(2015, time.January, 2, 3, 4, 5, 0, time.UTC)
ur.Depth = DepthSince(since)
// Create a new Encode for the stdout...
e := NewEncoder(os.Stdout)
// ...and encode the upload-request to it.
_ = e.Encode(ur) // ignoring errors for brevity
Output: 005bwant 1111111111111111111111111111111111111111 ofs-delta sysref=HEAD:/refs/heads/master 0032want 2222222222222222222222222222222222222222 0032want 3333333333333333333333333333333333333333 0035shallow aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 0035shallow bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb 001cdeepen-since 1420167845 0000
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