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Add global and system support
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Closes #760

Signed-off-by: Dj Gilcrease <d.gilcrease@f5.com>
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Dj Gilcrease committed Nov 15, 2019
1 parent 1a7db85 commit 33edb07
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Showing 22 changed files with 1,417 additions and 1,321 deletions.
25 changes: 25 additions & 0 deletions config/config.go
Original file line number Diff line number Diff line change
Expand Up @@ -62,6 +62,7 @@ type Config struct {
// Branches list of branches, the key is the branch name and should
// equal Branch.Name
Branches map[string]*Branch
User *User
// Raw contains the raw information of a config file. The main goal is
// preserve the parsed information from the original format, to avoid
// dropping unsupported fields.
Expand All @@ -74,6 +75,7 @@ func NewConfig() *Config {
Remotes: make(map[string]*RemoteConfig),
Submodules: make(map[string]*Submodule),
Branches: make(map[string]*Branch),
User: new(User),
Raw: format.New(),
}

Expand Down Expand Up @@ -121,6 +123,9 @@ const (
windowKey = "window"
mergeKey = "merge"
rebaseKey = "rebase"
userSection = "user"
nameKey = "name"
emailKey = "email"

// DefaultPackWindow holds the number of previous objects used to
// generate deltas. The value 10 is the same used by git command.
Expand All @@ -138,6 +143,7 @@ func (c *Config) Unmarshal(b []byte) error {
}

c.unmarshalCore()
c.unmarshalUser()
if err := c.unmarshalPack(); err != nil {
return err
}
Expand All @@ -160,6 +166,16 @@ func (c *Config) unmarshalCore() {
c.Core.CommentChar = s.Options.Get(commentCharKey)
}

func (c *Config) unmarshalUser() {
s := c.Raw.Section(userSection)
if name := s.Options.Get(nameKey); name != "" {
c.User.Name = name
}
if email := s.Options.Get(emailKey); email != "" {
c.User.Email = email
}
}

func (c *Config) unmarshalPack() error {
s := c.Raw.Section(packSection)
window := s.Options.Get(windowKey)
Expand Down Expand Up @@ -224,6 +240,7 @@ func (c *Config) Marshal() ([]byte, error) {
c.marshalRemotes()
c.marshalSubmodules()
c.marshalBranches()
c.marshalUser()

buf := bytes.NewBuffer(nil)
if err := format.NewEncoder(buf).Encode(c.Raw); err != nil {
Expand All @@ -242,6 +259,14 @@ func (c *Config) marshalCore() {
}
}

func (c *Config) marshalUser() {
if c.User.Name != "" || c.User.Email != "" {
s := c.Raw.Section(userSection)
s.SetOption(nameKey, c.User.Name)
s.SetOption(emailKey, c.User.Email)
}
}

func (c *Config) marshalPack() {
s := c.Raw.Section(packSection)
if c.Pack.Window != DefaultPackWindow {
Expand Down
14 changes: 13 additions & 1 deletion config/config_test.go
Original file line number Diff line number Diff line change
Expand Up @@ -33,6 +33,9 @@ func (s *ConfigSuite) TestUnmarshal(c *C) {
[branch "master"]
remote = origin
merge = refs/heads/master
[user]
name = Soandso
email = soandso@example.com
`)

cfg := NewConfig()
Expand All @@ -58,6 +61,8 @@ func (s *ConfigSuite) TestUnmarshal(c *C) {
c.Assert(cfg.Submodules["qux"].Branch, Equals, "bar")
c.Assert(cfg.Branches["master"].Remote, Equals, "origin")
c.Assert(cfg.Branches["master"].Merge, Equals, plumbing.ReferenceName("refs/heads/master"))
c.Assert(cfg.User.Name, Equals, "Soandso")
c.Assert(cfg.User.Email, Equals, "soandso@example.com")
}

func (s *ConfigSuite) TestMarshal(c *C) {
Expand All @@ -80,6 +85,9 @@ func (s *ConfigSuite) TestMarshal(c *C) {
[branch "master"]
remote = origin
merge = refs/heads/master
[user]
name = Soandso
email = soandso@example.com
`)

cfg := NewConfig()
Expand Down Expand Up @@ -112,10 +120,11 @@ func (s *ConfigSuite) TestMarshal(c *C) {
Remote: "origin",
Merge: "refs/heads/master",
}
cfg.User.Name = "Soandso"
cfg.User.Email = "soandso@example.com"

b, err := cfg.Marshal()
c.Assert(err, IsNil)

c.Assert(string(b), Equals, string(output))
}

Expand All @@ -135,6 +144,9 @@ func (s *ConfigSuite) TestUnmarshalMarshal(c *C) {
[branch "master"]
remote = origin
merge = refs/heads/master
[user]
name = Soandso
email = soandso@example.com
`)

cfg := NewConfig()
Expand Down
6 changes: 6 additions & 0 deletions config/user.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,6 @@
package config

type User struct {
Name string
Email string
}
14 changes: 8 additions & 6 deletions go.mod
Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@ require (
github.com/alcortesm/tgz v0.0.0-20161220082320-9c5fe88206d7 // indirect
github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239 // indirect
github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5
github.com/davecgh/go-spew v1.1.1 // indirect
github.com/emirpasic/gods v1.12.0
github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568 // indirect
github.com/gliderlabs/ssh v0.2.2
Expand All @@ -12,18 +13,19 @@ require (
github.com/jessevdk/go-flags v1.4.0
github.com/kevinburke/ssh_config v0.0.0-20190725054713-01f96b0aa0cd
github.com/mitchellh/go-homedir v1.1.0
github.com/pelletier/go-buffruneio v0.2.0 // indirect
github.com/pkg/errors v0.8.1 // indirect
github.com/sergi/go-diff v1.0.0
github.com/src-d/gcfg v1.4.0
github.com/stretchr/objx v0.2.0 // indirect
github.com/stretchr/testify v1.3.0 // indirect
github.com/xanzy/ssh-agent v0.2.1
golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4
golang.org/x/net v0.0.0-20190724013045-ca1201d0de80
golang.org/x/crypto v0.0.0-20191112222119-e1110fd1c708
golang.org/x/net v0.0.0-20191112182307-2180aed22343
golang.org/x/sys v0.0.0-20191113165036-4c7a9d0fe056 // indirect
golang.org/x/text v0.3.2
golang.org/x/tools v0.0.0-20190729092621-ff9f1409240a // indirect
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15
gopkg.in/src-d/go-billy.v4 v4.3.2
gopkg.in/src-d/go-git-fixtures.v3 v3.5.0
gopkg.in/warnings.v0 v0.1.2 // indirect
)

go 1.13
38 changes: 10 additions & 28 deletions go.sum
Original file line number Diff line number Diff line change
Expand Up @@ -12,19 +12,14 @@ github.com/emirpasic/gods v1.12.0 h1:QAUIPSaCu4G+POclxeqb3F+WPpdKqFGlw36+yOzGlrg
github.com/emirpasic/gods v1.12.0/go.mod h1:YfzfFFoVP/catgzJb4IKIqXjX78Ha8FMSDh3ymbK86o=
github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568 h1:BHsljHzVlRcyQhjrss6TZTdY2VfCqZPbv5k3iBFa2ZQ=
github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568/go.mod h1:xEzjJPgXI435gkrCt3MPfRiAkVrwSbHsst4LCFVfpJc=
github.com/gliderlabs/ssh v0.1.3 h1:cBU46h1lYQk5f2Z+jZbewFKy+1zzE2aUX/ilcPDAm9M=
github.com/gliderlabs/ssh v0.1.3/go.mod h1:U7qILu1NlMHj9FlMhZLlkCdDnU1DBEAqr0aevW3Awn0=
github.com/gliderlabs/ssh v0.2.2 h1:6zsha5zo/TWhRhwqCD3+EarCAgZ2yN28ipRnGPnwkI0=
github.com/gliderlabs/ssh v0.2.2/go.mod h1:U7qILu1NlMHj9FlMhZLlkCdDnU1DBEAqr0aevW3Awn0=
github.com/google/go-cmp v0.2.0 h1:+dTQ8DZQJz0Mb/HjFlkptS1FeQ4cWSnN941F8aEG4SQ=
github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
github.com/google/go-cmp v0.3.0 h1:crn/baboCvb5fXaQ0IJ1SGTsTVrWpDsCWC8EGETZijY=
github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 h1:BQSFePA1RWJOlocH6Fxy8MmwDt+yVQYULKfN0RoTN8A=
github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99/go.mod h1:1lJo3i6rXxKeerYnT8Nvf0QmHCRC1n8sfWVwXF2Frvo=
github.com/jessevdk/go-flags v1.4.0 h1:4IU2WS7AumrZ/40jfhf4QVDMsQwqA7VEHozFRrGARJA=
github.com/jessevdk/go-flags v1.4.0/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
github.com/kevinburke/ssh_config v0.0.0-20180830205328-81db2a75821e h1:RgQk53JHp/Cjunrr1WlsXSZpqXn+uREuHvUVcK82CV8=
github.com/kevinburke/ssh_config v0.0.0-20180830205328-81db2a75821e/go.mod h1:CT57kijsi8u/K/BOFA39wgDQJ9CxiF4nAY/ojJ6r6mM=
github.com/kevinburke/ssh_config v0.0.0-20190725054713-01f96b0aa0cd h1:Coekwdh0v2wtGp9Gmz1Ze3eVRAWJMLokvN3QjdzCHLY=
github.com/kevinburke/ssh_config v0.0.0-20190725054713-01f96b0aa0cd/go.mod h1:CT57kijsi8u/K/BOFA39wgDQJ9CxiF4nAY/ojJ6r6mM=
github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
Expand All @@ -35,8 +30,6 @@ github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG+4E0Y=
github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
github.com/pelletier/go-buffruneio v0.2.0 h1:U4t4R6YkofJ5xHm3dJzuRpPZ0mr5MMCoAWooScCR7aA=
github.com/pelletier/go-buffruneio v0.2.0/go.mod h1:JkE26KsDizTr40EUHkXVtNPvgGtbSNq5BcowyYOWdKo=
github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
Expand All @@ -46,44 +39,33 @@ github.com/sergi/go-diff v1.0.0/go.mod h1:0CfEIISq7TuYL3j771MWULgwwjU+GofnZX9QAm
github.com/src-d/gcfg v1.4.0 h1:xXbNR5AlLSA315x2UO+fTSSAXCDf+Ar38/6oyGbDKQ4=
github.com/src-d/gcfg v1.4.0/go.mod h1:p/UMsR43ujA89BJY9duynAwIpvqEujIH/jFlfL7jWoI=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/objx v0.2.0/go.mod h1:qt09Ya8vawLte6SNmTgCsAVtYtaKzEcn8ATUoHMkEqE=
github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
github.com/xanzy/ssh-agent v0.2.1 h1:TCbipTQL2JiiCprBWx9frJ2eJlCYT00NmctrHxVAr70=
github.com/xanzy/ssh-agent v0.2.1/go.mod h1:mLlQY/MoOhWBj+gOGMQkOeiEvkx+8pJSI+0Bx9h2kr4=
golang.org/x/crypto v0.0.0-20190219172222-a4c6cb3142f2/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20190422183909-d864b10871cd h1:sMHc2rZHuzQmrbVoSpt9HgerkXPyIeCSO6k0zUMGfFk=
golang.org/x/crypto v0.0.0-20190422183909-d864b10871cd/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4 h1:HuIa8hRrWRSrqYzx1qI49NNxhdi2PrY7gxVSq1JjLDc=
golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20191112222119-e1110fd1c708 h1:pXVtWnwHkrWD9ru3sDxY/qFK/bfc0egRovX91EjWjf4=
golang.org/x/crypto v0.0.0-20191112222119-e1110fd1c708/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190420063019-afa5a82059c6 h1:HdqqaWmYAUI7/dmByKKEw+yxDksGSo+9GjkUc9Zp34E=
golang.org/x/net v0.0.0-20190420063019-afa5a82059c6/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190502183928-7f726cade0ab h1:9RfW3ktsOZxgo9YNbBAjq1FWzc/igwEcUzZz8IXgSbk=
golang.org/x/net v0.0.0-20190502183928-7f726cade0ab/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20190724013045-ca1201d0de80 h1:Ao/3l156eZf2AW5wK8a7/smtodRU+gha3+BeqJ69lRk=
golang.org/x/net v0.0.0-20190724013045-ca1201d0de80/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sys v0.0.0-20180903190138-2b024373dcd9 h1:lkiLiLBHGoH3XnqSLUIaBsilGMUjI+Uy2Xu2JLUtTas=
golang.org/x/sys v0.0.0-20180903190138-2b024373dcd9/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/net v0.0.0-20191112182307-2180aed22343 h1:00ohfJ4K98s3m6BGUoBd8nyfp4Yl0GoIKvw5abItTjI=
golang.org/x/net v0.0.0-20191112182307-2180aed22343/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190221075227-b4e8571b14e0/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190422165155-953cdadca894 h1:Cz4ceDQGXuKRnVBDTS23GTn/pU5OE2C0WrNTOYK1Uuc=
golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e h1:D5TXcfTk7xF7hvieo4QErS3qqCB4teTffacDWr7CI+0=
golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20191113165036-4c7a9d0fe056 h1:dHtDnRWQtSx0Hjq9kvKFpBh9uPPKfQN70NZZmvssGwk=
golang.org/x/sys v0.0.0-20191113165036-4c7a9d0fe056/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20190729092621-ff9f1409240a/go.mod h1:jcCCGcm9btYwXyDqrUWc6MKQKKGJCWEQ3AfLSRIbEuI=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/src-d/go-billy.v4 v4.3.0 h1:KtlZ4c1OWbIs4jCv5ZXrTqG8EQocr0g/d4DjNg70aek=
gopkg.in/src-d/go-billy.v4 v4.3.0/go.mod h1:tm33zBoOwxjYHZIE+OV8bxTWFMJLrconzFMd38aARFk=
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/src-d/go-billy.v4 v4.3.2 h1:0SQA1pRztfTFx2miS8sA97XvooFeNOmvUenF4o0EcVg=
gopkg.in/src-d/go-billy.v4 v4.3.2/go.mod h1:nDjArDMp+XMs1aFAESLRjfGSgfvoYN0hDfzEk0GjC98=
gopkg.in/src-d/go-git-fixtures.v3 v3.5.0 h1:ivZFOIltbce2Mo8IjzUHAFoq/IylO9WHhNOAJK+LsJg=
Expand Down
16 changes: 8 additions & 8 deletions internal/revision/parser_test.go
Original file line number Diff line number Diff line change
Expand Up @@ -96,8 +96,8 @@ func (s *ParserSuite) TestParseWithValidExpression(c *C) {
TildePath{3},
},
"@{2016-12-16T21:42:47Z}": []Revisioner{AtDate{tim}},
"@{1}": []Revisioner{AtReflog{1}},
"@{-1}": []Revisioner{AtCheckout{1}},
"@{1}": []Revisioner{AtReflog{1}},
"@{-1}": []Revisioner{AtCheckout{1}},
"master@{upstream}": []Revisioner{
Ref("master"),
AtUpstream{},
Expand Down Expand Up @@ -211,12 +211,12 @@ func (s *ParserSuite) TestParseAtWithValidExpression(c *C) {
tim, _ := time.Parse("2006-01-02T15:04:05Z", "2016-12-16T21:42:47Z")

datas := map[string]Revisioner{
"": Ref("HEAD"),
"{1}": AtReflog{1},
"{-1}": AtCheckout{1},
"{push}": AtPush{},
"{upstream}": AtUpstream{},
"{u}": AtUpstream{},
"": Ref("HEAD"),
"{1}": AtReflog{1},
"{-1}": AtCheckout{1},
"{push}": AtPush{},
"{upstream}": AtUpstream{},
"{u}": AtUpstream{},
"{2016-12-16T21:42:47Z}": AtDate{tim},
}

Expand Down
70 changes: 35 additions & 35 deletions plumbing/format/commitgraph/commitgraph.go
Original file line number Diff line number Diff line change
@@ -1,35 +1,35 @@
package commitgraph

import (
"time"

"gopkg.in/src-d/go-git.v4/plumbing"
)

// CommitData is a reduced representation of Commit as presented in the commit graph
// file. It is merely useful as an optimization for walking the commit graphs.
type CommitData struct {
// TreeHash is the hash of the root tree of the commit.
TreeHash plumbing.Hash
// ParentIndexes are the indexes of the parent commits of the commit.
ParentIndexes []int
// ParentHashes are the hashes of the parent commits of the commit.
ParentHashes []plumbing.Hash
// Generation number is the pre-computed generation in the commit graph
// or zero if not available
Generation int
// When is the timestamp of the commit.
When time.Time
}

// Index represents a representation of commit graph that allows indexed
// access to the nodes using commit object hash
type Index interface {
// GetIndexByHash gets the index in the commit graph from commit hash, if available
GetIndexByHash(h plumbing.Hash) (int, error)
// GetNodeByIndex gets the commit node from the commit graph using index
// obtained from child node, if available
GetCommitDataByIndex(i int) (*CommitData, error)
// Hashes returns all the hashes that are available in the index
Hashes() []plumbing.Hash
}
package commitgraph

import (
"time"

"gopkg.in/src-d/go-git.v4/plumbing"
)

// CommitData is a reduced representation of Commit as presented in the commit graph
// file. It is merely useful as an optimization for walking the commit graphs.
type CommitData struct {
// TreeHash is the hash of the root tree of the commit.
TreeHash plumbing.Hash
// ParentIndexes are the indexes of the parent commits of the commit.
ParentIndexes []int
// ParentHashes are the hashes of the parent commits of the commit.
ParentHashes []plumbing.Hash
// Generation number is the pre-computed generation in the commit graph
// or zero if not available
Generation int
// When is the timestamp of the commit.
When time.Time
}

// Index represents a representation of commit graph that allows indexed
// access to the nodes using commit object hash
type Index interface {
// GetIndexByHash gets the index in the commit graph from commit hash, if available
GetIndexByHash(h plumbing.Hash) (int, error)
// GetNodeByIndex gets the commit node from the commit graph using index
// obtained from child node, if available
GetCommitDataByIndex(i int) (*CommitData, error)
// Hashes returns all the hashes that are available in the index
Hashes() []plumbing.Hash
}
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