license: add bill of materials.
This commit is contained in:
Diego Pontoriero
parent
9d4b1041bd
commit
6d4fef4b9a
6 changed files with 1041 additions and 3 deletions
6
Makefile
6
Makefile
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@ -33,9 +33,10 @@ release-binary:
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@go build -o /go/bin/dex -v -ldflags $(LD_FLAGS) $(REPO_PATH)/cmd/dex
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.PHONY: revendor
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revendor:
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revendor: bin/license-bill-of-materials
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@glide up -v
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@glide-vc --use-lock-file --no-tests --only-code
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@./bin/license-bill-of-materials ./cmd/dex ./cmd/example-app > bill-of-materials.json
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test:
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@go test -v -i $(shell go list ./... | grep -v '/vendor/')
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@ -75,6 +76,9 @@ bin/protoc: scripts/get-protoc
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bin/protoc-gen-go:
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@go install -v $(REPO_PATH)/vendor/github.com/golang/protobuf/protoc-gen-go
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bin/license-bill-of-materials:
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@CGO_ENABLED=1 go install -v $(REPO_PATH)/vendor/github.com/coreos/license-bill-of-materials
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.PHONY: check-go-version
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check-go-version:
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@./scripts/check-go-version
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276
bill-of-materials.json
Normal file
276
bill-of-materials.json
Normal file
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@ -0,0 +1,276 @@
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[
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{
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"project": "github.com/beevik/etree",
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"licenses": [
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{
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"type": "BSD 2-clause \"Simplified\" License",
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"confidence": 0.9658536585365853
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}
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]
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},
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{
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"project": "github.com/cockroachdb/cockroach-go/crdb",
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"licenses": [
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{
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"type": "Apache License 2.0",
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"confidence": 0.9988925802879292
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}
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]
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},
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{
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"project": "github.com/coreos/dex",
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"licenses": [
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{
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"type": "Apache License 2.0",
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"confidence": 1
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}
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]
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},
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{
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"project": "github.com/coreos/etcd",
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"licenses": [
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{
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"type": "Apache License 2.0",
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"confidence": 1
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}
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]
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},
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{
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"project": "github.com/coreos/go-oidc",
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"licenses": [
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{
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"type": "Apache License 2.0",
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"confidence": 1
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}
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]
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},
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{
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"project": "github.com/ghodss/yaml",
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"licenses": [
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{
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"type": "BSD 3-clause \"New\" or \"Revised\" License",
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"confidence": 0.8357142857142857
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}
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]
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},
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{
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"project": "github.com/go-sql-driver/mysql",
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"licenses": [
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{
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"type": "Mozilla Public License 2.0",
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"confidence": 1
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}
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]
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},
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{
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"project": "github.com/golang/protobuf",
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"licenses": [
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{
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"type": "BSD 3-clause \"New\" or \"Revised\" License",
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"confidence": 0.92
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}
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]
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},
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{
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"project": "github.com/gorilla/handlers",
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"licenses": [
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{
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"type": "BSD 2-clause \"Simplified\" License",
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"confidence": 0.9852216748768473
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}
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]
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},
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{
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"project": "github.com/gorilla/mux",
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"licenses": [
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{
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"type": "BSD 3-clause \"New\" or \"Revised\" License",
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"confidence": 0.9663865546218487
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}
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]
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},
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{
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"project": "github.com/gtank/cryptopasta",
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"licenses": [
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{
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"type": "Creative Commons Zero v1.0 Universal",
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"confidence": 0.9642857142857143
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}
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]
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},
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{
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"project": "github.com/jonboulle/clockwork",
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"licenses": [
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{
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"type": "Apache License 2.0",
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"confidence": 1
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}
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]
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},
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{
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"project": "github.com/lib/pq",
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"licenses": [
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{
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"type": "MIT License",
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"confidence": 0.9891304347826086
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}
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]
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},
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{
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"project": "github.com/mattn/go-sqlite3",
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"licenses": [
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{
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"type": "MIT License",
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"confidence": 1
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}
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]
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},
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{
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"project": "github.com/pquerna/cachecontrol",
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"licenses": [
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{
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"type": "Apache License 2.0",
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"confidence": 1
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}
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]
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},
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{
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"project": "github.com/russellhaering/goxmldsig",
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"licenses": [
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{
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"type": "Apache License 2.0",
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"confidence": 0.9573241061130334
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}
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]
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},
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{
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"project": "github.com/sirupsen/logrus",
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"licenses": [
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{
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"type": "MIT License",
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"confidence": 1
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}
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]
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},
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{
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"project": "github.com/spf13/cobra",
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"licenses": [
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{
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"type": "Apache License 2.0",
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"confidence": 0.9573241061130334
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}
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]
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},
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{
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"project": "github.com/spf13/pflag",
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"licenses": [
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{
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"type": "BSD 3-clause \"New\" or \"Revised\" License",
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"confidence": 0.9663865546218487
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}
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]
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},
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{
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"project": "golang.org/x/crypto",
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"licenses": [
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{
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"type": "BSD 3-clause \"New\" or \"Revised\" License",
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"confidence": 0.9663865546218487
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}
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]
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},
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{
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"project": "golang.org/x/net",
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"licenses": [
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{
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"type": "BSD 3-clause \"New\" or \"Revised\" License",
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"confidence": 0.9663865546218487
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}
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]
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},
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{
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"project": "golang.org/x/oauth2",
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"licenses": [
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{
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"type": "BSD 3-clause \"New\" or \"Revised\" License",
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"confidence": 0.9663865546218487
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}
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]
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},
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{
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"project": "golang.org/x/text",
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"licenses": [
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{
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"type": "BSD 3-clause \"New\" or \"Revised\" License",
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"confidence": 0.9663865546218487
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}
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]
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},
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{
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"project": "google.golang.org/genproto/googleapis/rpc/status",
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"licenses": [
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{
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"type": "Apache License 2.0",
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"confidence": 1
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}
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]
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},
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{
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"project": "google.golang.org/grpc",
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"licenses": [
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{
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"type": "BSD 3-clause \"New\" or \"Revised\" License",
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"confidence": 0.979253112033195
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}
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]
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},
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{
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"project": "gopkg.in/asn1-ber.v1",
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"licenses": [
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{
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"type": "BSD 3-clause \"New\" or \"Revised\" License",
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"confidence": 0.9663865546218487
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}
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]
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},
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{
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"project": "gopkg.in/ldap.v2",
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"licenses": [
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{
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"type": "BSD 3-clause \"New\" or \"Revised\" License",
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"confidence": 0.9663865546218487
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}
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]
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},
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{
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"project": "gopkg.in/square/go-jose.v2",
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"licenses": [
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{
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"type": "Apache License 2.0",
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"confidence": 1
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}
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]
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},
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{
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"project": "gopkg.in/square/go-jose.v2/json",
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"licenses": [
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{
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"type": "BSD 3-clause \"New\" or \"Revised\" License",
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"confidence": 0.9663865546218487
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}
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]
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},
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{
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"project": "gopkg.in/yaml.v2",
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"licenses": [
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{
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"type": "GNU Lesser General Public License v3.0",
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"confidence": 0.9528301886792453
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},
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{
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"type": "MIT License",
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"confidence": 0.8975609756097561
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}
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]
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}
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]
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6
glide.lock
generated
6
glide.lock
generated
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@ -1,5 +1,5 @@
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hash: aa8fb290b0e14af4bf4d4cae250ce66561c819a9cdd6447a0432de26f9216318
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updated: 2017-11-30T16:40:26.928155912-08:00
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hash: dda54feb39d5947ad20e9d583ccad9be02343dac0f52752944b7cd39668af7a4
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updated: 2017-12-19T10:23:03.503553615-08:00
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imports:
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- name: github.com/beevik/etree
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version: 4cd0dd976db869f817248477718071a28e978df0
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@ -20,6 +20,8 @@ imports:
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- pkg/transport
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- name: github.com/coreos/go-oidc
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version: be73733bb8cc830d0205609b95d125215f8e9c70
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- name: github.com/coreos/license-bill-of-materials
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version: d70207c33a3c79a1c0479b208f8b7ab6215144c7
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- name: github.com/ghodss/yaml
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version: bea76d6a4713e18b7f5321a2b020738552def3ea
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- name: github.com/go-sql-driver/mysql
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@ -154,3 +154,7 @@ import:
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version: 4cd0dd976db869f817248477718071a28e978df0
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- package: github.com/jonboulle/clockwork
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version: bcac9884e7502bb2b474c0339d889cb981a2f27f
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# License bill of materials generator.
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- package: github.com/coreos/license-bill-of-materials
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version: d70207c33a3c79a1c0479b208f8b7ab6215144c7
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19
vendor/github.com/coreos/license-bill-of-materials/LICENSE
generated
vendored
Normal file
19
vendor/github.com/coreos/license-bill-of-materials/LICENSE
generated
vendored
Normal file
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@ -0,0 +1,19 @@
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Copyright (c) 2015 Patrick Mézard
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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733
vendor/github.com/coreos/license-bill-of-materials/license-bill-of-materials.go
generated
vendored
Normal file
733
vendor/github.com/coreos/license-bill-of-materials/license-bill-of-materials.go
generated
vendored
Normal file
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@ -0,0 +1,733 @@
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package main
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import (
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"bufio"
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"bytes"
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"encoding/json"
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"flag"
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"fmt"
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"io/ioutil"
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"log"
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"os"
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"os/exec"
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"path/filepath"
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"regexp"
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"sort"
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"strconv"
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"strings"
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"github.com/coreos/license-bill-of-materials/assets"
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)
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// Template holds pre-constructed license template info
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type Template struct {
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Title string
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Nickname string
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Words map[string]int
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}
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func parseTemplate(content string) (*Template, error) {
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t := Template{}
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text := []byte{}
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state := 0
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scanner := bufio.NewScanner(strings.NewReader(content))
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for scanner.Scan() {
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line := strings.TrimSpace(scanner.Text())
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if state == 0 {
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if line == "---" {
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state = 1
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}
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} else if state == 1 {
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if line == "---" {
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state = 2
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} else {
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if strings.HasPrefix(line, "title:") {
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t.Title = strings.TrimSpace(line[len("title:"):])
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} else if strings.HasPrefix(line, "nickname:") {
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t.Nickname = strings.TrimSpace(line[len("nickname:"):])
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}
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}
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} else if state == 2 {
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text = append(text, scanner.Bytes()...)
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text = append(text, []byte("\n")...)
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}
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}
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t.Words = makeWordSet(text)
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return &t, scanner.Err()
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}
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func loadTemplates() ([]*Template, error) {
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templates := []*Template{}
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for _, a := range assets.Assets {
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templ, err := parseTemplate(a.Content)
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if err != nil {
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return nil, err
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}
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templates = append(templates, templ)
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}
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return templates, nil
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}
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var (
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reWords = regexp.MustCompile(`[\w']+`)
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reCopyright = regexp.MustCompile(
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`(?i)\s*Copyright (?:©|\(c\)|\xC2\xA9)?\s*(?:\d{4}|\[year\]).*`)
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)
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func cleanLicenseData(data []byte) []byte {
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data = bytes.ToLower(data)
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data = reCopyright.ReplaceAll(data, nil)
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return data
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}
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func makeWordSet(data []byte) map[string]int {
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words := map[string]int{}
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data = cleanLicenseData(data)
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matches := reWords.FindAll(data, -1)
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for i, m := range matches {
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s := string(m)
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if _, ok := words[s]; !ok {
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// Non-matching words are likely in the license header, to mention
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// copyrights and authors. Try to preserve the initial sequences,
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// to display them later.
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words[s] = i
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}
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}
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return words
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}
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// Word holds word and word position in a license
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type Word struct {
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Text string
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Pos int
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}
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type sortedWords []Word
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func (s sortedWords) Len() int {
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return len(s)
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}
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func (s sortedWords) Swap(i, j int) {
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s[i], s[j] = s[j], s[i]
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}
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func (s sortedWords) Less(i, j int) bool {
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return s[i].Pos < s[j].Pos
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}
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// MatchResult represents a matched template and matching metrics
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type MatchResult struct {
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Template *Template
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Score float64
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ExtraWords []string
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MissingWords []string
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}
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func sortAndReturnWords(words []Word) []string {
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sort.Sort(sortedWords(words))
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tokens := []string{}
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for _, w := range words {
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tokens = append(tokens, w.Text)
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}
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return tokens
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}
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// matchTemplates returns the best license template matching supplied data,
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// its score between 0 and 1 and the list of words appearing in license but not
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// in the matched template.
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func matchTemplates(license []byte, templates []*Template) MatchResult {
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bestScore := float64(-1)
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var bestTemplate *Template
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bestExtra := []Word{}
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bestMissing := []Word{}
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words := makeWordSet(license)
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for _, t := range templates {
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extra := []Word{}
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missing := []Word{}
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common := 0
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for w, pos := range words {
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_, ok := t.Words[w]
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if ok {
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common++
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} else {
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extra = append(extra, Word{
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Text: w,
|
||||
Pos: pos,
|
||||
})
|
||||
}
|
||||
}
|
||||
for w, pos := range t.Words {
|
||||
if _, ok := words[w]; !ok {
|
||||
missing = append(missing, Word{
|
||||
Text: w,
|
||||
Pos: pos,
|
||||
})
|
||||
}
|
||||
}
|
||||
score := 2 * float64(common) / (float64(len(words)) + float64(len(t.Words)))
|
||||
if score > bestScore {
|
||||
bestScore = score
|
||||
bestTemplate = t
|
||||
bestMissing = missing
|
||||
bestExtra = extra
|
||||
}
|
||||
}
|
||||
return MatchResult{
|
||||
Template: bestTemplate,
|
||||
Score: bestScore,
|
||||
ExtraWords: sortAndReturnWords(bestExtra),
|
||||
MissingWords: sortAndReturnWords(bestMissing),
|
||||
}
|
||||
}
|
||||
|
||||
// fixEnv returns a copy of the process environment where GOPATH is adjusted to
|
||||
// supplied value. It returns nil if gopath is empty.
|
||||
func fixEnv(gopath string) []string {
|
||||
if gopath == "" {
|
||||
return nil
|
||||
}
|
||||
kept := []string{
|
||||
"GOPATH=" + gopath,
|
||||
}
|
||||
for _, env := range os.Environ() {
|
||||
if !strings.HasPrefix(env, "GOPATH=") {
|
||||
kept = append(kept, env)
|
||||
}
|
||||
}
|
||||
return kept
|
||||
}
|
||||
|
||||
// MissingError reports on missing licenses
|
||||
type MissingError struct {
|
||||
Err string
|
||||
}
|
||||
|
||||
func (err *MissingError) Error() string {
|
||||
return err.Err
|
||||
}
|
||||
|
||||
// expandPackages takes a list of package or package expressions and invoke go
|
||||
// list to expand them to packages. In particular, it handles things like "..."
|
||||
// and ".".
|
||||
func expandPackages(gopath string, pkgs []string) ([]string, error) {
|
||||
args := []string{"list"}
|
||||
args = append(args, pkgs...)
|
||||
cmd := exec.Command("go", args...)
|
||||
cmd.Env = fixEnv(gopath)
|
||||
out, err := cmd.CombinedOutput()
|
||||
if err != nil {
|
||||
output := string(out)
|
||||
if strings.Contains(output, "cannot find package") ||
|
||||
strings.Contains(output, "no buildable Go source files") {
|
||||
return nil, &MissingError{Err: output}
|
||||
}
|
||||
return nil, fmt.Errorf("'go %s' failed with:\n%s",
|
||||
strings.Join(args, " "), output)
|
||||
}
|
||||
names := []string{}
|
||||
for _, s := range strings.Split(string(out), "\n") {
|
||||
s = strings.TrimSpace(s)
|
||||
if s != "" {
|
||||
names = append(names, s)
|
||||
}
|
||||
}
|
||||
return names, nil
|
||||
}
|
||||
|
||||
func listPackagesAndDeps(gopath string, pkgs []string) ([]string, error) {
|
||||
pkgs, err := expandPackages(gopath, pkgs)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
args := []string{"list", "-f", "{{range .Deps}}{{.}}|{{end}}"}
|
||||
args = append(args, pkgs...)
|
||||
cmd := exec.Command("go", args...)
|
||||
cmd.Env = fixEnv(gopath)
|
||||
out, err := cmd.CombinedOutput()
|
||||
if err != nil {
|
||||
output := string(out)
|
||||
if strings.Contains(output, "cannot find package") ||
|
||||
strings.Contains(output, "no buildable Go source files") {
|
||||
return nil, &MissingError{Err: output}
|
||||
}
|
||||
return nil, fmt.Errorf("'go %s' failed with:\n%s",
|
||||
strings.Join(args, " "), output)
|
||||
}
|
||||
deps := []string{}
|
||||
seen := map[string]bool{}
|
||||
for _, s := range strings.Split(string(out), "|") {
|
||||
s = strings.TrimSpace(s)
|
||||
if s != "" && !seen[s] {
|
||||
deps = append(deps, s)
|
||||
seen[s] = true
|
||||
}
|
||||
}
|
||||
for _, pkg := range pkgs {
|
||||
if !seen[pkg] {
|
||||
seen[pkg] = true
|
||||
deps = append(deps, pkg)
|
||||
}
|
||||
}
|
||||
sort.Strings(deps)
|
||||
return deps, nil
|
||||
}
|
||||
|
||||
func listStandardPackages(gopath string) ([]string, error) {
|
||||
return expandPackages(gopath, []string{"std", "cmd"})
|
||||
}
|
||||
|
||||
// PkgError reports on missing packages
|
||||
type PkgError struct {
|
||||
Err string
|
||||
}
|
||||
|
||||
// PkgInfo holds identifying package info
|
||||
type PkgInfo struct {
|
||||
Name string
|
||||
Dir string
|
||||
Root string
|
||||
ImportPath string
|
||||
Error *PkgError
|
||||
}
|
||||
|
||||
func getPackagesInfo(gopath string, pkgs []string) ([]*PkgInfo, error) {
|
||||
args := []string{"list", "-e", "-json"}
|
||||
// TODO: split the list for platforms which do not support massive argument
|
||||
// lists.
|
||||
args = append(args, pkgs...)
|
||||
cmd := exec.Command("go", args...)
|
||||
cmd.Env = fixEnv(gopath)
|
||||
out, err := cmd.CombinedOutput()
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("go %s failed with:\n%s",
|
||||
strings.Join(args, " "), string(out))
|
||||
}
|
||||
infos := make([]*PkgInfo, 0, len(pkgs))
|
||||
decoder := json.NewDecoder(bytes.NewBuffer(out))
|
||||
var derr error
|
||||
for _, pkg := range pkgs {
|
||||
info := &PkgInfo{}
|
||||
derr = decoder.Decode(info)
|
||||
if derr != nil {
|
||||
return nil, fmt.Errorf("could not retrieve package information for %s", pkg)
|
||||
}
|
||||
if pkg != info.ImportPath {
|
||||
return nil, fmt.Errorf("package information mismatch: asked for %s, got %s",
|
||||
pkg, info.ImportPath)
|
||||
}
|
||||
if info.Error != nil && info.Name == "" {
|
||||
info.Name = info.ImportPath
|
||||
}
|
||||
infos = append(infos, info)
|
||||
}
|
||||
return infos, err
|
||||
}
|
||||
|
||||
var (
|
||||
reLicense = regexp.MustCompile(`(?i)^(?:` +
|
||||
`((?:un)?licen[sc]e(?:\.[^.]+)?)|` +
|
||||
`(copy(?:ing|right)(?:\.[^.]+)?)|` +
|
||||
`)$`)
|
||||
)
|
||||
|
||||
// scoreLicenseName returns a factor between 0 and 1 weighting how likely
|
||||
// supplied filename is a license file.
|
||||
func scoreLicenseName(name string) int8 {
|
||||
m := reLicense.FindStringSubmatch(name)
|
||||
switch {
|
||||
case m == nil:
|
||||
break
|
||||
case m[1] != "" || m[2] != "":
|
||||
return 1
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
// findLicenses looks for license files in package import path, and down to
|
||||
// parent directories until a file is found or $GOPATH/src is reached. It
|
||||
// returns a slice of paths all viable files, or a slice containing one empty
|
||||
// string if none were found.
|
||||
func findLicenses(info *PkgInfo) ([]string, error) {
|
||||
path := info.ImportPath
|
||||
for ; path != "."; path = filepath.Dir(path) {
|
||||
fis, err := ioutil.ReadDir(filepath.Join(info.Root, "src", path))
|
||||
if err != nil {
|
||||
return []string{""}, err
|
||||
}
|
||||
allViableNames := make([]string, 0)
|
||||
for _, fi := range fis {
|
||||
if !fi.Mode().IsRegular() {
|
||||
continue
|
||||
}
|
||||
score := scoreLicenseName(fi.Name())
|
||||
if score == 1 {
|
||||
allViableNames = append(allViableNames, filepath.Join(path, fi.Name()))
|
||||
}
|
||||
}
|
||||
if len(allViableNames) > 0 {
|
||||
return allViableNames, nil
|
||||
}
|
||||
}
|
||||
return []string{""}, nil
|
||||
}
|
||||
|
||||
// GoPackage represents a top-level package, ex. colors/blue
|
||||
type GoPackage struct {
|
||||
PackageName string
|
||||
RawLicenses []*RawLicense
|
||||
Err string
|
||||
}
|
||||
|
||||
// RawLicense holds template-matched file data
|
||||
type RawLicense struct {
|
||||
Path string
|
||||
Score float64
|
||||
Template *Template
|
||||
ExtraWords []string
|
||||
MissingWords []string
|
||||
}
|
||||
|
||||
func listPackagesWithLicenses(gopath string, pkgs []string) ([]GoPackage, error) {
|
||||
templates, err := loadTemplates()
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
deps, err := listPackagesAndDeps(gopath, pkgs)
|
||||
if err != nil {
|
||||
if _, ok := err.(*MissingError); ok {
|
||||
return nil, err
|
||||
}
|
||||
return nil, fmt.Errorf("could not list %s dependencies: %s",
|
||||
strings.Join(pkgs, " "), err)
|
||||
}
|
||||
std, err := listStandardPackages(gopath)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("could not list standard packages: %s", err)
|
||||
}
|
||||
stdSet := map[string]bool{}
|
||||
for _, n := range std {
|
||||
stdSet[n] = true
|
||||
}
|
||||
infos, err := getPackagesInfo(gopath, deps)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// Cache matched licenses by path. Useful for package with a lot of
|
||||
// subpackages like bleve.
|
||||
matched := map[string]MatchResult{}
|
||||
|
||||
gPackages := []GoPackage{}
|
||||
for _, info := range infos {
|
||||
if info.Error != nil {
|
||||
gPackages = append(gPackages, GoPackage{
|
||||
PackageName: info.Name,
|
||||
Err: info.Error.Err,
|
||||
RawLicenses: []*RawLicense{{Path: ""}},
|
||||
})
|
||||
continue
|
||||
}
|
||||
if stdSet[info.ImportPath] {
|
||||
continue
|
||||
}
|
||||
paths, err := findLicenses(info)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
rawLicenseInfos := []*RawLicense{}
|
||||
gPackage := GoPackage{PackageName: info.ImportPath}
|
||||
for _, path := range paths {
|
||||
rl := RawLicense{Path: path}
|
||||
if path != "" {
|
||||
fpath := filepath.Join(info.Root, "src", path)
|
||||
m, ok := matched[fpath]
|
||||
if !ok {
|
||||
data, err := ioutil.ReadFile(fpath)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
m = matchTemplates(data, templates)
|
||||
matched[fpath] = m
|
||||
}
|
||||
rl.Score = m.Score
|
||||
rl.Template = m.Template
|
||||
rl.ExtraWords = m.ExtraWords
|
||||
rl.MissingWords = m.MissingWords
|
||||
}
|
||||
rawLicenseInfos = append(rawLicenseInfos, &rl)
|
||||
}
|
||||
gPackage.RawLicenses = rawLicenseInfos
|
||||
gPackages = append(gPackages, gPackage)
|
||||
}
|
||||
return gPackages, nil
|
||||
}
|
||||
|
||||
// longestCommonPrefix returns the longest common prefix over import path
|
||||
// components of supplied licenses.
|
||||
func longestCommonPrefix(gPackages []GoPackage) string {
|
||||
type Node struct {
|
||||
Name string
|
||||
Children map[string]*Node
|
||||
Shared int
|
||||
}
|
||||
// Build a prefix tree. Not super efficient, but easy to do.
|
||||
root := &Node{
|
||||
Children: map[string]*Node{},
|
||||
Shared: len(gPackages),
|
||||
}
|
||||
for _, l := range gPackages {
|
||||
n := root
|
||||
for _, part := range strings.Split(l.PackageName, "/") {
|
||||
c := n.Children[part]
|
||||
if c == nil {
|
||||
c = &Node{
|
||||
Name: part,
|
||||
Children: map[string]*Node{},
|
||||
}
|
||||
n.Children[part] = c
|
||||
}
|
||||
c.Shared++
|
||||
n = c
|
||||
}
|
||||
}
|
||||
n := root
|
||||
prefix := []string{}
|
||||
for {
|
||||
if len(n.Children) != 1 {
|
||||
break
|
||||
}
|
||||
for _, c := range n.Children {
|
||||
if c.Shared == len(gPackages) {
|
||||
// Handle case where there are subpackages:
|
||||
// prometheus/procfs
|
||||
// prometheus/procfs/xfs
|
||||
prefix = append(prefix, c.Name)
|
||||
}
|
||||
n = c
|
||||
break
|
||||
}
|
||||
}
|
||||
return strings.Join(prefix, "/")
|
||||
}
|
||||
|
||||
// groupPackagesByLicense returns the input packages after grouping them by license
|
||||
// path and find their longest import path common prefix. Entries with empty
|
||||
// paths are left unchanged.
|
||||
func groupPackagesByLicense(gPackages []GoPackage) ([]GoPackage, error) {
|
||||
paths := map[string][]GoPackage{}
|
||||
for _, gp := range gPackages {
|
||||
for _, rl := range gp.RawLicenses {
|
||||
if rl.Path == "" {
|
||||
continue
|
||||
}
|
||||
paths[rl.Path] = append(paths[rl.Path], gp)
|
||||
}
|
||||
}
|
||||
for k, v := range paths {
|
||||
if len(v) <= 1 {
|
||||
continue
|
||||
}
|
||||
prefix := longestCommonPrefix(v)
|
||||
if prefix == "" {
|
||||
return nil, fmt.Errorf(
|
||||
"packages share the same license but not common prefix: %v", v)
|
||||
}
|
||||
gp := v[0]
|
||||
gp.PackageName = prefix
|
||||
paths[k] = []GoPackage{gp}
|
||||
}
|
||||
kept := []GoPackage{}
|
||||
// Ensures only one package with multiple licenses is appended to the list of
|
||||
// kept packages
|
||||
seen := make(map[string]bool)
|
||||
for _, gp := range gPackages {
|
||||
if len(gp.RawLicenses) == 0 {
|
||||
kept = append(kept, gp)
|
||||
continue
|
||||
}
|
||||
for _, rl := range gp.RawLicenses {
|
||||
if rl.Path == "" {
|
||||
kept = append(kept, gp)
|
||||
continue
|
||||
}
|
||||
if v, ok := paths[rl.Path]; ok {
|
||||
if _, ok := seen[v[0].PackageName]; !ok {
|
||||
kept = append(kept, v[0])
|
||||
delete(paths, rl.Path)
|
||||
seen[v[0].PackageName] = true
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
return kept, nil
|
||||
}
|
||||
|
||||
type projectAndLicenses struct {
|
||||
Project string `json:"project"`
|
||||
Licenses []license `json:"licenses,omitempty"`
|
||||
Error string `json:"error,omitempty"`
|
||||
}
|
||||
|
||||
type license struct {
|
||||
Type string `json:"type,omitempty"`
|
||||
Confidence float64 `json:"confidence,omitempty"`
|
||||
}
|
||||
|
||||
func licensesToProjectAndLicenses(gPackages []GoPackage) (c []projectAndLicenses, e []projectAndLicenses) {
|
||||
for _, gp := range gPackages {
|
||||
if gp.Err != "" {
|
||||
e = append(e, projectAndLicenses{
|
||||
Project: removeVendor(gp.PackageName),
|
||||
Error: gp.Err,
|
||||
})
|
||||
continue
|
||||
}
|
||||
nt := 0
|
||||
for _, rl := range gp.RawLicenses {
|
||||
if rl.Template == nil {
|
||||
nt++
|
||||
}
|
||||
}
|
||||
if len(gp.RawLicenses) == nt {
|
||||
e = append(e, projectAndLicenses{
|
||||
Project: removeVendor(gp.PackageName),
|
||||
Error: "No license detected",
|
||||
})
|
||||
continue
|
||||
}
|
||||
ls := []license{}
|
||||
for _, rl := range gp.RawLicenses {
|
||||
if rl.Template.Title != "" {
|
||||
ls = append(ls, license{
|
||||
Type: rl.Template.Title,
|
||||
Confidence: rl.Score,
|
||||
})
|
||||
}
|
||||
}
|
||||
c = append(c, projectAndLicenses{
|
||||
Project: removeVendor(gp.PackageName),
|
||||
Licenses: ls,
|
||||
})
|
||||
}
|
||||
return c, e
|
||||
}
|
||||
|
||||
func removeVendor(s string) string {
|
||||
v := "/vendor/"
|
||||
i := strings.Index(s, v)
|
||||
if i == -1 {
|
||||
return s
|
||||
}
|
||||
return s[i+len(v):]
|
||||
}
|
||||
|
||||
func truncateFloat(f float64) float64 {
|
||||
nf := fmt.Sprintf("%.3f", f)
|
||||
|
||||
var err error
|
||||
f, err = strconv.ParseFloat(nf, 64)
|
||||
if err != nil {
|
||||
panic("unexpected parse float error")
|
||||
}
|
||||
return f
|
||||
}
|
||||
|
||||
func pkgsToLicenses(pkgs []string, overrides string) (pls []projectAndLicenses, ne []projectAndLicenses) {
|
||||
fplm := make(map[string][]string)
|
||||
if err := json.Unmarshal([]byte(overrides), &pls); err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
for _, pl := range pls {
|
||||
for _, l := range pl.Licenses {
|
||||
fplm[pl.Project] = append(fplm[pl.Project], l.Type)
|
||||
}
|
||||
}
|
||||
|
||||
licenses, err := listPackagesWithLicenses("", pkgs)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
if licenses, err = groupPackagesByLicense(licenses); err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
c, e := licensesToProjectAndLicenses(licenses)
|
||||
|
||||
// detected licenses
|
||||
pls = nil
|
||||
ls := []license{}
|
||||
for _, pl := range c {
|
||||
if fl, ok := fplm[pl.Project]; ok {
|
||||
for _, l := range fl {
|
||||
ls = append(ls, license{
|
||||
Type: l,
|
||||
Confidence: 1.0,
|
||||
})
|
||||
}
|
||||
pl = projectAndLicenses{
|
||||
Project: pl.Project,
|
||||
Licenses: ls,
|
||||
}
|
||||
delete(fplm, pl.Project)
|
||||
}
|
||||
pls = append(pls, pl)
|
||||
}
|
||||
// force add undetected licenses given by overrides
|
||||
ls = nil
|
||||
for proj, fl := range fplm {
|
||||
for _, l := range fl {
|
||||
ls = append(ls, license{
|
||||
Type: l,
|
||||
Confidence: 1.0,
|
||||
})
|
||||
}
|
||||
pls = append(pls, projectAndLicenses{
|
||||
Project: proj,
|
||||
Licenses: ls,
|
||||
})
|
||||
}
|
||||
// missing / error license
|
||||
for _, pl := range e {
|
||||
if _, ok := fplm[pl.Project]; !ok {
|
||||
ne = append(ne, pl)
|
||||
}
|
||||
}
|
||||
|
||||
sort.Slice(pls, func(i, j int) bool { return pls[i].Project < pls[j].Project })
|
||||
sort.Slice(ne, func(i, j int) bool { return ne[i].Project < ne[j].Project })
|
||||
return pls, ne
|
||||
}
|
||||
|
||||
func main() {
|
||||
of := flag.String("override-file", "", "a file to overwrite licenses")
|
||||
flag.Parse()
|
||||
if flag.NArg() < 1 {
|
||||
log.Fatal("expect at least one package argument")
|
||||
}
|
||||
|
||||
overrides := "[]"
|
||||
if len(*of) != 0 {
|
||||
b, err := ioutil.ReadFile(*of)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
overrides = string(b)
|
||||
}
|
||||
|
||||
c, ne := pkgsToLicenses(flag.Args(), overrides)
|
||||
b, err := json.MarshalIndent(c, "", " ")
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
fmt.Println(string(b))
|
||||
|
||||
if len(ne) != 0 {
|
||||
fmt.Println("")
|
||||
b, err := json.MarshalIndent(ne, "", " ")
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
fmt.Println(string(b))
|
||||
os.Exit(1)
|
||||
}
|
||||
}
|
||||
Reference in a new issue