fix: add file header check (siderolabs#131)

Signed-off-by: Andrew Rynhard <andrew@andrewrynhard.com>

go.mod

@@ -6,9 +6,9 @@ require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/deckarep/golang-set v1.7.1 // indirect
 	github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568 // indirect
-	github.com/fsnotify/fsnotify v1.4.2 // indirect
+	github.com/fsnotify/fsnotify v1.4.7 // indirect
 	github.com/gliderlabs/ssh v0.1.1 // indirect
-	github.com/google/go-cmp v0.2.0 // indirect
+	github.com/google/go-cmp v0.3.0 // indirect
 	github.com/google/go-github v17.0.0+incompatible
 	github.com/google/go-querystring v1.0.0 // indirect
 	github.com/hashicorp/hcl v0.0.0-20170509225359-392dba7d905e // indirect
@@ -24,22 +24,22 @@ require (
 	github.com/neurosnap/sentences v1.0.6 // indirect
 	github.com/pelletier/go-buffruneio v0.2.0 // indirect
 	github.com/pelletier/go-toml v1.0.0 // indirect
-	github.com/pkg/errors v0.8.0
-	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/pkg/errors v0.8.1
 	github.com/sergi/go-diff v0.0.0-20170409071739-feef008d51ad // indirect
-	github.com/spf13/afero v0.0.0-20170217164146-9be650865eab // indirect
+	github.com/spf13/afero v1.2.0 // indirect
 	github.com/spf13/cast v1.1.0 // indirect
-	github.com/spf13/cobra v0.0.0-20170629105234-8c6fa02d2225
+	github.com/spf13/cobra v0.0.3
 	github.com/spf13/jwalterweatherman v0.0.0-20170523133247-0efa5202c046 // indirect
-	github.com/spf13/pflag v1.0.0 // indirect
+	github.com/spf13/pflag v1.0.3 // indirect
 	github.com/spf13/viper v0.0.0-20170619124313-c1de95864d73
 	github.com/src-d/gcfg v1.3.0 // indirect
-	github.com/stretchr/testify v1.2.2 // indirect
+	github.com/stretchr/testify v1.3.0 // indirect
 	github.com/xanzy/ssh-agent v0.1.0 // indirect
-	golang.org/x/crypto v0.0.0-20170703161049-69be088f8606 // indirect
-	golang.org/x/net v0.0.0-20170629171032-1f9224279e98 // indirect
-	golang.org/x/sys v0.0.0-20170703210155-94b76065f2d2 // indirect
-	golang.org/x/text v0.0.0-20170630100924-2bf8f2a19ec0 // indirect
+	golang.org/x/crypto v0.0.0-20190506204251-e1dfcc566284 // indirect
+	golang.org/x/exp v0.0.0-20190121172915-509febef88a4 // indirect
+	golang.org/x/net v0.0.0-20190503192946-f4e77d36d62c // indirect
+	golang.org/x/sys v0.0.0-20190508220229-2d0786266e9c // indirect
+	golang.org/x/text v0.3.2 // indirect
 	gonum.org/v1/gonum v0.0.0-20190119014124-d54847ab4dca // indirect
 	gonum.org/v1/netlib v0.0.0-20190119082159-9be13e02fd56 // indirect
 	gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 // indirect
@@ -49,5 +49,5 @@ require (
 	gopkg.in/src-d/go-git-fixtures.v3 v3.1.1 // indirect
 	gopkg.in/src-d/go-git.v4 v4.0.0
 	gopkg.in/warnings.v0 v0.1.1 // indirect
-	gopkg.in/yaml.v2 v2.0.0-20170407172122-cd8b52f8269e
+	gopkg.in/yaml.v2 v2.2.2
 )

go.sum

@@ -2,18 +2,19 @@ github.com/alcortesm/tgz v0.0.0-20161220082320-9c5fe88206d7 h1:uSoVVbwJiQipAclBb
 github.com/alcortesm/tgz v0.0.0-20161220082320-9c5fe88206d7/go.mod h1:6zEj6s6u/ghQa61ZWa/C2Aw3RkjiTBOix7dkqa1VLIs=
 github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239 h1:kFOfPq6dUM1hTo4JG6LR5AXSUEsOjtdm0kw0FtQtMJA=
 github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239/go.mod h1:2FmKhYUyUczH0OGQWaF5ceTx0UBShxjsH6f8oGKYe2c=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/deckarep/golang-set v1.7.1 h1:SCQV0S6gTtp6itiFrTqI+pfmJ4LN85S1YzhDf9rTHJQ=
 github.com/deckarep/golang-set v1.7.1/go.mod h1:93vsz/8Wt4joVM7c2AVqh+YRMiUSc14yDtF28KmMOgQ=
 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/fsnotify/fsnotify v1.4.2 h1:v5tKwtf2hNhBV24eNYfQ5UmvFOGlOCmRqk7/P1olxtk=
-github.com/fsnotify/fsnotify v1.4.2/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
+github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I=
+github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/gliderlabs/ssh v0.1.1 h1:j3L6gSLQalDETeEg/Jg0mGY0/y/N6zI2xX1978P0Uqw=
 github.com/gliderlabs/ssh v0.1.1/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/google/go-github v17.0.0+incompatible h1:N0LgJ1j65A7kfXrZnUDaYCs/Sf4rEjNlfyDHW9dolSY=
 github.com/google/go-github v17.0.0+incompatible/go.mod h1:zLgOLi98H3fifZn+44m+umXrS52loVEgC2AApnigrVQ=
 github.com/google/go-querystring v1.0.0 h1:Xkwi/a1rcvNg1PPYe5vI8GbeBY/jrVuDX5ASuANWTrk=
@@ -47,45 +48,55 @@ github.com/pelletier/go-buffruneio v0.2.0 h1:U4t4R6YkofJ5xHm3dJzuRpPZ0mr5MMCoAWo
 github.com/pelletier/go-buffruneio v0.2.0/go.mod h1:JkE26KsDizTr40EUHkXVtNPvgGtbSNq5BcowyYOWdKo=
 github.com/pelletier/go-toml v1.0.0 h1:QFDlmAXZrfPXEF6c9+15fMqhQIS3O0pxszhnk936vg4=
 github.com/pelletier/go-toml v1.0.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
-github.com/pkg/errors v0.8.0 h1:WdK/asTD0HN+q6hsWO3/vpuAkAr+tw6aNJNDFFf0+qw=
-github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+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=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/sergi/go-diff v0.0.0-20170409071739-feef008d51ad h1:tSFsPEWlyDYLf376k3+aunLH2qE7TMd/8arj5jZtqg8=
 github.com/sergi/go-diff v0.0.0-20170409071739-feef008d51ad/go.mod h1:0CfEIISq7TuYL3j771MWULgwwjU+GofnZX9QAmXWZgo=
-github.com/spf13/afero v0.0.0-20170217164146-9be650865eab h1:IVAbBHQR8rXL2Fc8Zba/lMF7KOnTi70lqdx91UTuAwQ=
-github.com/spf13/afero v0.0.0-20170217164146-9be650865eab/go.mod h1:j4pytiNVoe2o6bmDsKpLACNPDBIoEAkihy7loJ1B0CQ=
+github.com/spf13/afero v1.2.0 h1:O9FblXGxoTc51M+cqr74Bm2Tmt4PvkA5iu/j8HrkNuY=
+github.com/spf13/afero v1.2.0/go.mod h1:9ZxEEn6pIJ8Rxe320qSDBk6AsU0r9pR7Q4OcevTdifk=
 github.com/spf13/cast v1.1.0 h1:0Rhw4d6C8J9VPu6cjZLIhZ8+aAOHcDvGeKn+cq5Aq3k=
 github.com/spf13/cast v1.1.0/go.mod h1:r2rcYCSwa1IExKTDiTfzaxqT2FNHs8hODu4LnUfgKEg=
-github.com/spf13/cobra v0.0.0-20170629105234-8c6fa02d2225 h1:q3+5ddm9WXXqHG+6uw1mo2su75ES27vhNCqi/xflZY0=
-github.com/spf13/cobra v0.0.0-20170629105234-8c6fa02d2225/go.mod h1:1l0Ry5zgKvJasoi3XT1TypsSe7PqH0Sj9dhYf7v3XqQ=
+github.com/spf13/cobra v0.0.3 h1:ZlrZ4XsMRm04Fr5pSFxBgfND2EBVa1nLpiy1stUsX/8=
+github.com/spf13/cobra v0.0.3/go.mod h1:1l0Ry5zgKvJasoi3XT1TypsSe7PqH0Sj9dhYf7v3XqQ=
 github.com/spf13/jwalterweatherman v0.0.0-20170523133247-0efa5202c046 h1:RpxSq53NruItMGgp6q5MsDYoZynisJgEpisQdWJ7PyM=
 github.com/spf13/jwalterweatherman v0.0.0-20170523133247-0efa5202c046/go.mod h1:cQK4TGJAtQXfYWX+Ddv3mKDzgVb68N+wFjFa4jdeBTo=
-github.com/spf13/pflag v1.0.0 h1:oaPbdDe/x0UncahuwiPxW1GYJyilRAdsPnq3e1yaPcI=
-github.com/spf13/pflag v1.0.0/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
+github.com/spf13/pflag v1.0.3 h1:zPAT6CGy6wXeQ7NtTnaTerfKOsV6V6F8agHXFiazDkg=
+github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
 github.com/spf13/viper v0.0.0-20170619124313-c1de95864d73 h1:qJXvCTq/ZNWp7kk3MGbyDByJaCWFLT7uXIbksXFxITQ=
 github.com/spf13/viper v0.0.0-20170619124313-c1de95864d73/go.mod h1:A8kyI5cUJhb8N+3pkfONlcEcZbueH6nhAm0Fq7SrnBM=
 github.com/src-d/gcfg v1.3.0 h1:2BEDr8r0I0b8h/fOqwtxCEiq2HJu8n2JGZJQFGXWLjg=
 github.com/src-d/gcfg v1.3.0/go.mod h1:p/UMsR43ujA89BJY9duynAwIpvqEujIH/jFlfL7jWoI=
-github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
-github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+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 v0.1.0 h1:lOhdXLxtmYjaHc76ZtNmJWPg948y/RnT+3N3cvKWFzY=
 github.com/xanzy/ssh-agent v0.1.0/go.mod h1:0NyE30eGUDliuLEHJgYte/zncp2zdTStcOnWhgSqHD8=
-golang.org/x/crypto v0.0.0-20170703161049-69be088f8606 h1:i72l9b8scUpp6IdZyG/amRbdITs8cYMY5HnSypqSt5I=
-golang.org/x/crypto v0.0.0-20170703161049-69be088f8606/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20190506204251-e1dfcc566284 h1:rlLehGeYg6jfoyz/eDqDU1iRXLKfR42nnNh57ytKEWo=
+golang.org/x/crypto v0.0.0-20190506204251-e1dfcc566284/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/exp v0.0.0-20180321215751-8460e604b9de h1:xSjD6HQTqT0H/k60N5yYBtnN1OEkVy7WIo/DYyxKRO0=
 golang.org/x/exp v0.0.0-20180321215751-8460e604b9de/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
-golang.org/x/net v0.0.0-20170629171032-1f9224279e98 h1:7wZTjEl3uuLKP9GWY+XYHTXYLUtBChvsVHCNZBouFMA=
-golang.org/x/net v0.0.0-20170629171032-1f9224279e98/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
-golang.org/x/sys v0.0.0-20170703210155-94b76065f2d2 h1:t5pPVtKY5FQGuFxgVhQzf4GN4yt7pMhcjKkJ6NIB5Ec=
-golang.org/x/sys v0.0.0-20170703210155-94b76065f2d2/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/text v0.0.0-20170630100924-2bf8f2a19ec0 h1:M4kywXOhV3F38kTr0IZZYueKhR5dVnpaVmGSeYrklJY=
-golang.org/x/text v0.0.0-20170630100924-2bf8f2a19ec0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/exp v0.0.0-20190121172915-509febef88a4 h1:c2HOrn5iMezYjSlGPncknSEr/8x5LELb/ilJbXi9DEA=
+golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
+golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20190503192946-f4e77d36d62c h1:uOCk1iQW6Vc18bnC13MfzScl+wdKBmM9Y9kU7Z83/lw=
+golang.org/x/net v0.0.0-20190503192946-f4e77d36d62c/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190508220229-2d0786266e9c h1:hDn6jm7snBX2O7+EeTk6Q4WXJfKt7MWgtiCCRi1rBoY=
+golang.org/x/sys v0.0.0-20190508220229-2d0786266e9c/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=
+golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
 golang.org/x/tools v0.0.0-20180525024113-a5b4c53f6e8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 gonum.org/v1/gonum v0.0.0-20190119014124-d54847ab4dca h1:n0S76j3sXlixKdU/XYIBVb1s3hPsZCiZ+oQmPH+r3gQ=
 gonum.org/v1/gonum v0.0.0-20190119014124-d54847ab4dca/go.mod h1:Y+Yx5eoAFn32cQvJDxZx5Dpnq+c3wtXuadVZAcxbbBo=
 gonum.org/v1/netlib v0.0.0-20190119082159-9be13e02fd56 h1:sWo7pRubEwovyVnbgs3VJpe4ppUGSLbu/zNPyCBXtHE=
 gonum.org/v1/netlib v0.0.0-20190119082159-9be13e02fd56/go.mod h1:wa6Ws7BG/ESfp6dHfk7C6KdzKA7wR7u/rKwOGE66zvw=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 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/jdkato/prose.v2 v2.0.0-20180825173540-767a23049b9e h1:yDDVJ347kU7Ro+H2CRgKmAEbFXfHwjyPuXgVd6H+3N8=
@@ -100,5 +111,5 @@ gopkg.in/src-d/go-git.v4 v4.0.0 h1:9ZRNKHuhaTaJRGcGaH6Qg7uUORO2X0MNB5WL/CDdqto=
 gopkg.in/src-d/go-git.v4 v4.0.0/go.mod h1:CzbUWqMn4pvmvndg3gnh5iZFmSsbhyhUWdI0IQ60AQo=
 gopkg.in/warnings.v0 v0.1.1 h1:XM28wIgFzaBmeZ5dNHIpWLQpt/9DGKxk+rCg/22nnYE=
 gopkg.in/warnings.v0 v0.1.1/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI=
-gopkg.in/yaml.v2 v2.0.0-20170407172122-cd8b52f8269e h1:o/mfNjxpTLivuKEfxzzwrJ8PmulH2wEp7t713uMwKAA=
-gopkg.in/yaml.v2 v2.0.0-20170407172122-cd8b52f8269e/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
+gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

internal/policy/license/license.go

@@ -36,6 +36,8 @@ type License struct {
 func (l *License) Compliance(options *policy.Options) (*policy.Report, error) {
 	report := &policy.Report{}
 
+	report.AddCheck(l.ValidateLicenseHeader())
+
 	return report, nil
 }
 
@@ -46,7 +48,7 @@ type HeaderCheck struct {
 
 // Name returns the name of the check.
 func (l HeaderCheck) Name() string {
-	return "file license header"
+	return "File Header"
 }
 
 // Message returns to check message.
@@ -65,12 +67,13 @@ func (l HeaderCheck) Errors() []error {
 // ValidateLicenseHeader checks the header of a file and ensures it contains the
 // provided value.
 // nolint: gocyclo
-func (l License) ValidateLicenseHeader(report *policy.Report, name string, contents, value []byte) policy.Check {
+func (l License) ValidateLicenseHeader() policy.Check {
 	check := HeaderCheck{}
 	if l.Header == "" {
 		check.errors = append(check.errors, errors.New("Header is not defined"))
 		return check
 	}
+	value := []byte(l.Header)
 	err := filepath.Walk(".", func(path string, info os.FileInfo, err error) error {
 		if err != nil {
 			return err
@@ -116,7 +119,7 @@ func (l License) ValidateLicenseHeader(report *policy.Report, name string, conte
 					if bytes.HasPrefix(contents, value) {
 						continue
 					}
-					check.errors = append(check.errors, errors.Errorf("File %s does not contain a license header", name))
+					check.errors = append(check.errors, errors.Errorf("File %s does not contain a license header", info.Name()))
 				}
 			}
 		}

internal/summarizer/summarizer.go

@@ -1,3 +1,7 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
 package summarizer
 
 import (