[blame] Remove redundant commit hash from results

Signed-off-by: Juanjo Alvarez <juanjo@sourced.tech>

Author: Juanjo Alvarez

docs/using-gitbase/examples.md

@@ -204,7 +204,6 @@ The output will be similar to this:
 
 ```sql
 SELECT repository_id,
-       JSON_UNQUOTE(JSON_EXTRACT(bl, "$.commit")),
        JSON_UNQUOTE(JSON_EXTRACT(bl, "$.file")),
        JSON_UNQUOTE(JSON_EXTRACT(bl, "$.linenum")),
        JSON_UNQUOTE(JSON_EXTRACT(bl, "$.author")),

go.sum

@@ -246,6 +246,7 @@ 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/src-d/go-borges v0.1.1 h1:URkX6ycDzodt5n6mAF54cdjmmAMSWIyuL12ga/E5/sM=
 github.com/src-d/go-borges v0.1.1/go.mod h1:q/ufK0FXUS0ngH1Crd1TyirdtUM4dl/5ky2Oxiaw4YA=
+github.com/src-d/go-borges v0.1.3 h1:EgNqVy6Mw6wT3mx5AIUWjOAJJJQ6yuiDimi8JV/R2hE=
 github.com/src-d/go-borges v0.1.3/go.mod h1:2lbHENELjpD+6bTOOnrnGEpVPMmO+wBGtYwzvQdr/Zc=
 github.com/src-d/go-git v4.7.0+incompatible h1:IYSSnbAHeKmsfbQFi9ozbid+KNh0bKjlorMfQehQbcE=
 github.com/src-d/go-git v4.7.0+incompatible/go.mod h1:1bQciz+hn0jzPQNsYj0hDFZHLJBdV7gXE2mWhC7EkFk=
@@ -334,6 +335,7 @@ golang.org/x/sys v0.0.0-20190520201301-c432e742b0af/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20190609082536-301114b31cce/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190618155005-516e3c20635f h1:dHNZYIYdq2QuU6w73vZ/DzesPbVlZVYZTtTZmrnsbQ8=
 golang.org/x/sys v0.0.0-20190618155005-516e3c20635f/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/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
@@ -368,10 +370,12 @@ gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMy
 gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2/go.mod h1:Xk6kEKp8OKb+X14hQBKWaSkCsqBpgog8nAV2xsGOxlo=
 gopkg.in/src-d/go-billy-siva.v4 v4.5.1 h1:+UdpGGmJjANhXwg6TCcTVbACUqsbtX19QvJ9AdeX4ts=
 gopkg.in/src-d/go-billy-siva.v4 v4.5.1/go.mod h1:4wKeCzOCSsdyFeM5+58M6ObU6FM+lZT12p7zm7A+9n0=
+gopkg.in/src-d/go-billy-siva.v4 v4.6.0 h1:HO5m7lqYewIZ3Otay3IkQg3gFznW8Gy9HIbHWm1mYX0=
 gopkg.in/src-d/go-billy-siva.v4 v4.6.0/go.mod h1:EcgzPxovlWGD+lZFFriUleL3EVZ/SPs6CH2FOE/eooI=
 gopkg.in/src-d/go-billy.v4 v4.2.1/go.mod h1:tm33zBoOwxjYHZIE+OV8bxTWFMJLrconzFMd38aARFk=
 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/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-errors.v1 v1.0.0 h1:cooGdZnCjYbeS1zb1s6pVAAimTdKceRrpn7aKOnNIfc=
 gopkg.in/src-d/go-errors.v1 v1.0.0/go.mod h1:q1cBlomlw2FnDBDNGlnh6X0jPihy+QxZfMMNxPCbdYg=
@@ -384,6 +388,7 @@ gopkg.in/src-d/go-git.v4 v4.12.0/go.mod h1:zjlNnzc1Wjn43v3Mtii7RVxiReNP0fIu9npcX
 gopkg.in/src-d/go-log.v1 v1.0.2/go.mod h1:GN34hKP0g305ysm2/hctJ0Y8nWP3zxXXJ8GFabTyABE=
 gopkg.in/src-d/go-siva.v1 v1.5.0 h1:WowvbZTlz0SPoV7WNCGktPSi2yRK78HPyXl7wYqDeHE=
 gopkg.in/src-d/go-siva.v1 v1.5.0/go.mod h1:tk1jnIXawd/PTlRNWdr5V5lC0PttNJmu1fv7wt7IZlw=
+gopkg.in/src-d/go-siva.v1 v1.7.0 h1:igjgSEFweZ2kEfRlGEJH767o8GJRiPWp8JmHDCe0Vdk=
 gopkg.in/src-d/go-siva.v1 v1.7.0/go.mod h1:ChxMHSRkICHZ9IbTlG3ihkuG7gc2RZPsIYh7OaXYvic=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
 gopkg.in/toqueteos/substring.v1 v1.0.2 h1:urLqCeMm6x/eTuQa1oZerNw8N1KNOIp5hD5kGL7lFsE=

internal/function/blame.go

@@ -54,7 +54,6 @@ func (g *BlameGenerator) Next() (interface{}, error) {
 
 	l := g.lines[g.curLine]
 	b := BlameLine{
-		Commit:  g.commit.Hash.String(),
 		File:    g.curFile.Name,
 		LineNum: g.curLine,
 		Author:  l.Author,
@@ -80,7 +79,6 @@ type (
 
 	// BlameLine represents each line of git blame's output
 	BlameLine struct {
-		Commit  string `json:"commit"`
 		File    string `json:"file"`
 		LineNum int    `json:"linenum"`
 		Author  string `json:"author"`

internal/function/blame_test.go

@@ -42,7 +42,6 @@ func TestBlameEval(t *testing.T) {
 			testedLine: 0,
 			lineCount:  12,
 			expected: BlameLine{
-				"b029517f6300c2da0f4b651b8642506cd6aaf45d",
 				".gitignore",
 				0,
 				"mcuadros@gmail.com",
@@ -58,7 +57,6 @@ func TestBlameEval(t *testing.T) {
 			testedLine: 0,
 			lineCount:  1,
 			expected: BlameLine{
-				"b8e471f58bcbca63b07bda20e428190409c2db47",
 				"CHANGELOG",
 				0,
 				"daniel@lordran.local",