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Posted to commits@skywalking.apache.org by ke...@apache.org on 2020/12/27 09:06:53 UTC

[skywalking-eyes] branch main updated: Add feature to resolve dependencies' licenses, GoLang as an example (#14)

This is an automated email from the ASF dual-hosted git repository.

kezhenxu94 pushed a commit to branch main
in repository https://gitbox.apache.org/repos/asf/skywalking-eyes.git


The following commit(s) were added to refs/heads/main by this push:
     new 038d724  Add feature to resolve dependencies' licenses, GoLang as an example (#14)
038d724 is described below

commit 038d724e60b25f1a521c314b61a2767f35321d5f
Author: Zhenxu Ke <ke...@apache.org>
AuthorDate: Sun Dec 27 17:06:48 2020 +0800

    Add feature to resolve dependencies' licenses, GoLang as an example (#14)
---
 .licenserc.yaml                                    |   5 +
 action.yml                                         |   2 +
 license-eye/Dockerfile                             |  10 +-
 license-eye/Makefile                               |  12 +-
 license-eye/README.adoc                            |  51 +++++-
 .../Apache-2.0-ASF.txt                             |   0
 .../Apache-2.0.txt                                 |   0
 license-eye/assets/lcs-templates/Apache-2.0.txt    | 181 +++++++++++++++++++--
 license-eye/assets/lcs-templates/BSD-3-Clause.txt  |  27 +++
 license-eye/assets/lcs-templates/MIT.txt           |  19 +++
 license-eye/commands/{header/header.go => deps.go} |  23 +--
 .../commands/{header/header.go => deps_resolve.go} |  46 ++++--
 license-eye/commands/{header => }/header.go        |   8 +-
 .../commands/{header/check.go => header_check.go}  |  17 +-
 .../commands/{header/fix.go => header_fix.go}      |  15 +-
 license-eye/commands/root.go                       |  25 ++-
 license-eye/go.mod                                 |   2 +
 license-eye/go.sum                                 |  12 ++
 license-eye/pkg/config/config.go                   |   6 +
 license-eye/pkg/{config => deps}/config.go         |  29 ++--
 license-eye/pkg/deps/golang.go                     | 166 +++++++++++++++++++
 .../header/header.go => pkg/deps/resolve.go}       |  40 +++--
 license-eye/pkg/deps/result.go                     |  82 ++++++++++
 license-eye/pkg/header/check.go                    |   9 +-
 license-eye/pkg/header/check_test.go               |   9 +-
 license-eye/pkg/header/config.go                   |   4 +-
 license-eye/pkg/header/fix.go                      |   7 +-
 license-eye/pkg/{ => header}/result.go             |   2 +-
 .../{config/config.go => license/identifier.go}    |  44 ++---
 license-eye/pkg/license/norm.go                    |  39 +++++
 license-eye/pkg/review/header.go                   |  13 +-
 .../test/testdata/.licenserc_for_test_check.yaml   |   4 +
 32 files changed, 742 insertions(+), 167 deletions(-)

diff --git a/.licenserc.yaml b/.licenserc.yaml
index 5b6a539..db09875 100644
--- a/.licenserc.yaml
+++ b/.licenserc.yaml
@@ -69,8 +69,13 @@ header: # `header` section is configurations for source codes license header.
     - '**/go.sum'
     - 'LICENSE'
     - 'NOTICE'
+    - '**/assets/header-templates/**'
     - '**/assets/lcs-templates/**'
     - '**/assets/languages.yaml'
     - '**/assets/assets.gen.go'
 
   comment: on-failure # on what condition license-eye will comment on the pull request, `on-failure`, `always`, `never`.
+
+dependency:
+  files:
+    - license-eye/go.mod
diff --git a/action.yml b/action.yml
index 23fe862..fe7cbd3 100644
--- a/action.yml
+++ b/action.yml
@@ -23,3 +23,5 @@ branding:
 runs:
   using: docker
   image: license-eye/Dockerfile
+  args:
+    - header check
diff --git a/license-eye/Dockerfile b/license-eye/Dockerfile
index d4073c6..f7090f6 100644
--- a/license-eye/Dockerfile
+++ b/license-eye/Dockerfile
@@ -22,12 +22,18 @@ WORKDIR /license-eye
 
 COPY . .
 
-RUN apk add make curl && make build
+RUN apk add --no-cache make curl && make build
 
 FROM alpine:3 AS bin
 
 COPY --from=build /license-eye/bin/linux/license-eye /bin/license-eye
 
+# Go
+COPY --from=build /usr/local/go/ /usr/local/go/
+ENV PATH="/usr/local/go/bin:$PATH"
+RUN apk add --no-cache gcc musl-dev
+# Go
+
 WORKDIR /github/workspace/
 
-ENTRYPOINT /bin/license-eye header check -v debug
+ENTRYPOINT ["/bin/license-eye", "-v", "debug"]
diff --git a/license-eye/Makefile b/license-eye/Makefile
index e11f136..41e914b 100644
--- a/license-eye/Makefile
+++ b/license-eye/Makefile
@@ -27,7 +27,7 @@ GO_PATH = $(shell $(GO) env GOPATH)
 GO_BUILD = $(GO) build
 GO_TEST = $(GO) test
 GO_LINT = $(GO_PATH)/bin/golangci-lint
-GO_BUILD_LDFLAGS = -X github.com/apache/skywalking-eyes/license-eye/commands.version=$(VERSION)
+GO_BUILD_LDFLAGS = -X github.com/apache/skywalking-eyes/$(PROJECT)/commands.version=$(VERSION)
 
 GO_BINDATA = $(GO_PATH)/bin/go-bindata
 
@@ -35,8 +35,8 @@ PLATFORMS := windows linux darwin
 os = $(word 1, $@)
 ARCH = amd64
 
-RELEASE_BIN = skywalking-license-eye-$(VERSION)-bin
-RELEASE_SRC = skywalking-license-eye-$(VERSION)-src
+RELEASE_BIN = skywalking-$(PROJECT)-$(VERSION)-bin
+RELEASE_SRC = skywalking-$(PROJECT)-$(VERSION)-src
 
 all: clean lint license test build
 
@@ -51,7 +51,7 @@ fix-lint:
 
 .PHONY: license
 license: clean codegen
-	$(GO) run cmd/license-eye/main.go header check -c ../.licenserc.yaml
+	$(GO) run cmd/$(PROJECT)/main.go header check -c ../.licenserc.yaml
 
 .PHONY: codegen
 codegen: clean
@@ -66,14 +66,14 @@ test: clean codegen
 .PHONY: $(PLATFORMS)
 $(PLATFORMS):
 	mkdir -p $(OUT_DIR)
-	GOOS=$(os) GOARCH=$(ARCH) $(GO_BUILD) $(GO_BUILD_FLAGS) -ldflags "$(GO_BUILD_LDFLAGS)" -o $(OUT_DIR)/$(os)/$(PROJECT) cmd/license-eye/main.go
+	GOOS=$(os) GOARCH=$(ARCH) $(GO_BUILD) $(GO_BUILD_FLAGS) -ldflags "$(GO_BUILD_LDFLAGS)" -o $(OUT_DIR)/$(os)/$(PROJECT) cmd/$(PROJECT)/main.go
 
 .PHONY: build
 build: codegen windows linux darwin
 
 .PHONY: docker
 docker:
-	docker build . -t license-eye:latest
+	docker build . -t $(PROJECT):$(VERSION)
 
 .PHONY: clean
 clean:
diff --git a/license-eye/README.adoc b/license-eye/README.adoc
index d22ade3..11e2707 100644
--- a/license-eye/README.adoc
+++ b/license-eye/README.adoc
@@ -100,6 +100,49 @@ INFO Loading configuration from file: test/testdata/.licenserc_for_test_fix.yaml
 INFO Totally checked 16 files, valid: 7, invalid: 8, ignored: 1, fixed: 8
 ----
 
+==== Resolve Dependencies' licenses
+
+[source,bash]
+----
+$ bin/darwin/license-eye -c test/testdata/.licenserc_for_test_check.yaml dep resolve
+INFO GITHUB_TOKEN is not set, license-eye won't comment on the pull request
+INFO Loading configuration from file: test/testdata/.licenserc_for_test_check.yaml
+WARNING Failed to resolve the license of dependency: gopkg.in/yaml.v3 cannot identify license content
+Dependency                                  |      License
+------------------------------------------- | ------------
+github.com/bmatcuk/doublestar/v2            |          MIT
+github.com/sirupsen/logrus                  |          MIT
+golang.org/x/sys/unix                       | BSD-3-Clause
+github.com/spf13/cobra                      |   Apache-2.0
+github.com/spf13/pflag                      | BSD-3-Clause
+vendor/golang.org/x/net/dns/dnsmessage      | BSD-3-Clause
+vendor/golang.org/x/net/route               | BSD-3-Clause
+golang.org/x/oauth2                         | BSD-3-Clause
+golang.org/x/oauth2/internal                | BSD-3-Clause
+vendor/golang.org/x/crypto/cryptobyte       | BSD-3-Clause
+vendor/golang.org/x/crypto/cryptobyte/asn1  | BSD-3-Clause
+golang.org/x/net/context/ctxhttp            | BSD-3-Clause
+vendor/golang.org/x/crypto/chacha20poly1305 | BSD-3-Clause
+vendor/golang.org/x/crypto/chacha20         | BSD-3-Clause
+vendor/golang.org/x/crypto/internal/subtle  | BSD-3-Clause
+vendor/golang.org/x/crypto/poly1305         | BSD-3-Clause
+vendor/golang.org/x/sys/cpu                 | BSD-3-Clause
+vendor/golang.org/x/crypto/curve25519       | BSD-3-Clause
+vendor/golang.org/x/crypto/hkdf             | BSD-3-Clause
+vendor/golang.org/x/net/http/httpguts       | BSD-3-Clause
+vendor/golang.org/x/net/idna                | BSD-3-Clause
+vendor/golang.org/x/text/secure/bidirule    | BSD-3-Clause
+vendor/golang.org/x/text/transform          | BSD-3-Clause
+vendor/golang.org/x/text/unicode/bidi       | BSD-3-Clause
+vendor/golang.org/x/text/unicode/norm       | BSD-3-Clause
+vendor/golang.org/x/net/http/httpproxy      | BSD-3-Clause
+vendor/golang.org/x/net/http2/hpack         | BSD-3-Clause
+gopkg.in/yaml.v3                            |      Unknown
+
+ERROR failed to identify the licenses of following packages:
+gopkg.in/yaml.v3
+----
+
 == Configurations
 
 [source,yaml]
@@ -160,6 +203,10 @@ header: # <1>
     - '**/assets/assets.gen.go'
 
   comment: on-failure # <8>
+
+dependency: # <9>
+  files: # <10>
+    - go.mod
 ----
 <1> `header` section is configurations for source codes license header.
 <2> The link:https://spdx.org/licenses/[SPDX ID] of the license, it's convenient when your license is standard SPDX license, so that you can simply specify this identifier without copying the whole license `content` or `pattern`. This will be used as the content when `fix` command needs to insert a license header.
@@ -169,6 +216,8 @@ header: # <1>
 <6> `paths` are the path list that will be checked (and fixed) by license-eye, default is `['++**++']`. Formats like `++**/*.md++` and `++**/bin/**++` are supported.
 <7> `paths-ignore` are the path list that will be ignored by license-eye. By default, `.git` and the content in `.gitignore` will be inflated into the `paths-ignore` list.
 <8> On what condition {name} will comment the check results on the pull request, `on-failure`, `always`, `never`. Options other than `never` require the environment variable `GITHUB_TOKEN` to be set.
+<9> `dependency` section is configurations for resolving dependencies' licenses.
+<10> `files` are the files that declare the dependencies of a project, typically, `go.mo` in Go project, `pom.xml` in maven project, and `package.json` in NodeJS project. If it's a relative path, it's relative to the `.licenserc.yaml`.
 
 NOTE: When the `SPDX-ID` is Apache-2.0 and the owner is Apache Software foundation, the content would be link:https://www.apache.org/legal/src-headers.html#headers[a dedicated license] link:https://www.apache.org/foundation/license-faq.html#Apply-My-Software[specified by the ASF], otherwise, the license would be link:https://www.apache.org/foundation/license-faq.html#Apply-My-Software[the standard one].
 
@@ -195,7 +244,7 @@ include::assets/styles.yaml[tags=SlashAsterisk]
 == Contribution
 
 - If you find any file type should be supported by the aforementioned configurations but is not listed there, feel free to link:https://github.com/apache/skywalking-eyes/pulls[open a pull request] to add the configuration into the 2 files.
-- If you find the license template of an SPDX ID is not supported, feel free to link:https://github.com/apache/skywalking-eyes/pulls[open a pull request] to add it into link:assets/lcs-templates[the template folder].
+- If you find the license template of an SPDX ID is not supported, feel free to link:https://github.com/apache/skywalking-eyes/pulls[open a pull request] to add it into link:assets/header-templates[the template folder].
 
 == License
 
diff --git a/license-eye/assets/lcs-templates/Apache-2.0-ASF.txt b/license-eye/assets/header-templates/Apache-2.0-ASF.txt
similarity index 100%
rename from license-eye/assets/lcs-templates/Apache-2.0-ASF.txt
rename to license-eye/assets/header-templates/Apache-2.0-ASF.txt
diff --git a/license-eye/assets/lcs-templates/Apache-2.0.txt b/license-eye/assets/header-templates/Apache-2.0.txt
similarity index 100%
copy from license-eye/assets/lcs-templates/Apache-2.0.txt
copy to license-eye/assets/header-templates/Apache-2.0.txt
diff --git a/license-eye/assets/lcs-templates/Apache-2.0.txt b/license-eye/assets/lcs-templates/Apache-2.0.txt
index 83cfa23..dd5b3a5 100644
--- a/license-eye/assets/lcs-templates/Apache-2.0.txt
+++ b/license-eye/assets/lcs-templates/Apache-2.0.txt
@@ -1,13 +1,174 @@
-Copyright [year] [owner]
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
 
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
 
-http://www.apache.org/licenses/LICENSE-2.0
+   1. Definitions.
 
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
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+      transformation or translation of a Source form, including but
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+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
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+      the original version of the Work and any modifications or additions
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+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
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+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
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+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
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+      appropriateness of using or redistributing the Work and assume any
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+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
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+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
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+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
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+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
diff --git a/license-eye/assets/lcs-templates/BSD-3-Clause.txt b/license-eye/assets/lcs-templates/BSD-3-Clause.txt
new file mode 100644
index 0000000..3d387bc
--- /dev/null
+++ b/license-eye/assets/lcs-templates/BSD-3-Clause.txt
@@ -0,0 +1,27 @@
+Copyright (c) [year] [owner]. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of the copyright holder nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/license-eye/assets/lcs-templates/MIT.txt b/license-eye/assets/lcs-templates/MIT.txt
new file mode 100644
index 0000000..a45b07f
--- /dev/null
+++ b/license-eye/assets/lcs-templates/MIT.txt
@@ -0,0 +1,19 @@
+Copyright (c) [year] [owner]
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice (including the next paragraph)
+shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/license-eye/commands/header/header.go b/license-eye/commands/deps.go
similarity index 61%
copy from license-eye/commands/header/header.go
copy to license-eye/commands/deps.go
index 8786217..cac7d08 100644
--- a/license-eye/commands/header/header.go
+++ b/license-eye/commands/deps.go
@@ -1,3 +1,4 @@
+//
 // Licensed to Apache Software Foundation (ASF) under one or more contributor
 // license agreements. See the NOTICE file distributed with
 // this work for additional information regarding copyright
@@ -14,27 +15,19 @@
 // KIND, either express or implied.  See the License for the
 // specific language governing permissions and limitations
 // under the License.
-//
-package header
+package commands
 
 import (
 	"github.com/spf13/cobra"
 )
 
-var (
-	// cfgFile is the config path to the config file of header command.
-	cfgFile string
-)
-
-var Header = &cobra.Command{
-	Use:     "header",
-	Aliases: []string{"h"},
-	Short:   "License header related commands; e.g. check, fix, etc.",
-	Long:    "`header` command walks the specified paths recursively and checks if the specified files have the license header in the config file.",
+var Deps = &cobra.Command{
+	Use:     "dependency",
+	Aliases: []string{"d", "deps", "dep", "dependencies"},
+	Short:   "Dependencies related commands; e.g. check, etc.",
+	Long:    "deps command checks all dependencies of a module and their transitive dependencies.",
 }
 
 func init() {
-	Header.PersistentFlags().StringVarP(&cfgFile, "config", "c", ".licenserc.yaml", "the config file")
-	Header.AddCommand(CheckCommand)
-	Header.AddCommand(FixCommand)
+	Deps.AddCommand(ResolveCommand)
 }
diff --git a/license-eye/commands/header/header.go b/license-eye/commands/deps_resolve.go
similarity index 53%
copy from license-eye/commands/header/header.go
copy to license-eye/commands/deps_resolve.go
index 8786217..4969da7 100644
--- a/license-eye/commands/header/header.go
+++ b/license-eye/commands/deps_resolve.go
@@ -1,3 +1,4 @@
+//
 // Licensed to Apache Software Foundation (ASF) under one or more contributor
 // license agreements. See the NOTICE file distributed with
 // this work for additional information regarding copyright
@@ -14,27 +15,40 @@
 // KIND, either express or implied.  See the License for the
 // specific language governing permissions and limitations
 // under the License.
-//
-package header
+package commands
 
 import (
+	"fmt"
+	"strings"
+
+	"github.com/apache/skywalking-eyes/license-eye/pkg/deps"
 	"github.com/spf13/cobra"
 )
 
-var (
-	// cfgFile is the config path to the config file of header command.
-	cfgFile string
-)
+var ResolveCommand = &cobra.Command{
+	Use:     "resolve",
+	Aliases: []string{"r"},
+	Long:    "resolves all dependencies of a module and their transitive dependencies",
+	RunE: func(cmd *cobra.Command, args []string) error {
+		report := deps.Report{}
 
-var Header = &cobra.Command{
-	Use:     "header",
-	Aliases: []string{"h"},
-	Short:   "License header related commands; e.g. check, fix, etc.",
-	Long:    "`header` command walks the specified paths recursively and checks if the specified files have the license header in the config file.",
-}
+		if err := deps.Resolve(&Config.Deps, &report); err != nil {
+			return err
+		}
+
+		fmt.Println(report.String())
+
+		if skipped := len(report.Skipped); skipped > 0 {
+			pkgs := make([]string, skipped)
+			for i, s := range report.Skipped {
+				pkgs[i] = s.Dependency
+			}
+			return fmt.Errorf(
+				"failed to identify the licenses of following packages:\n%s",
+				strings.Join(pkgs, "\n"),
+			)
+		}
 
-func init() {
-	Header.PersistentFlags().StringVarP(&cfgFile, "config", "c", ".licenserc.yaml", "the config file")
-	Header.AddCommand(CheckCommand)
-	Header.AddCommand(FixCommand)
+		return nil
+	},
 }
diff --git a/license-eye/commands/header/header.go b/license-eye/commands/header.go
similarity index 85%
copy from license-eye/commands/header/header.go
copy to license-eye/commands/header.go
index 8786217..aec10de 100644
--- a/license-eye/commands/header/header.go
+++ b/license-eye/commands/header.go
@@ -15,17 +15,12 @@
 // specific language governing permissions and limitations
 // under the License.
 //
-package header
+package commands
 
 import (
 	"github.com/spf13/cobra"
 )
 
-var (
-	// cfgFile is the config path to the config file of header command.
-	cfgFile string
-)
-
 var Header = &cobra.Command{
 	Use:     "header",
 	Aliases: []string{"h"},
@@ -34,7 +29,6 @@ var Header = &cobra.Command{
 }
 
 func init() {
-	Header.PersistentFlags().StringVarP(&cfgFile, "config", "c", ".licenserc.yaml", "the config file")
 	Header.AddCommand(CheckCommand)
 	Header.AddCommand(FixCommand)
 }
diff --git a/license-eye/commands/header/check.go b/license-eye/commands/header_check.go
similarity index 80%
rename from license-eye/commands/header/check.go
rename to license-eye/commands/header_check.go
index 6f9e76f..e721eb1 100644
--- a/license-eye/commands/header/check.go
+++ b/license-eye/commands/header_check.go
@@ -15,12 +15,10 @@
 // specific language governing permissions and limitations
 // under the License.
 //
-package header
+package commands
 
 import (
 	"github.com/apache/skywalking-eyes/license-eye/internal/logger"
-	"github.com/apache/skywalking-eyes/license-eye/pkg"
-	"github.com/apache/skywalking-eyes/license-eye/pkg/config"
 	"github.com/apache/skywalking-eyes/license-eye/pkg/header"
 	"github.com/apache/skywalking-eyes/license-eye/pkg/review"
 
@@ -32,26 +30,21 @@ var CheckCommand = &cobra.Command{
 	Aliases: []string{"c"},
 	Long:    "check command walks the specified paths recursively and checks if the specified files have the license header in the config file.",
 	RunE: func(cmd *cobra.Command, args []string) error {
-		var config config.Config
-		var result pkg.Result
-
-		if err := config.Parse(cfgFile); err != nil {
-			return err
-		}
+		var result header.Result
 
 		if len(args) > 0 {
 			logger.Log.Debugln("Overriding paths with command line args.")
-			config.Header.Paths = args
+			Config.Header.Paths = args
 		}
 
-		if err := header.Check(&config.Header, &result); err != nil {
+		if err := header.Check(&Config.Header, &result); err != nil {
 			return err
 		}
 
 		logger.Log.Infoln(result.String())
 
 		if result.HasFailure() {
-			if err := review.Header(&result, &config); err != nil {
+			if err := review.Header(&result, &Config); err != nil {
 				logger.Log.Warnln("Failed to create review comments", err)
 			}
 			return result.Error()
diff --git a/license-eye/commands/header/fix.go b/license-eye/commands/header_fix.go
similarity index 80%
rename from license-eye/commands/header/fix.go
rename to license-eye/commands/header_fix.go
index 4fbba48..4f1e50f 100644
--- a/license-eye/commands/header/fix.go
+++ b/license-eye/commands/header_fix.go
@@ -16,15 +16,13 @@
 // specific language governing permissions and limitations
 // under the License.
 //
-package header
+package commands
 
 import (
 	"fmt"
 	"strings"
 
 	"github.com/apache/skywalking-eyes/license-eye/internal/logger"
-	"github.com/apache/skywalking-eyes/license-eye/pkg"
-	"github.com/apache/skywalking-eyes/license-eye/pkg/config"
 	"github.com/apache/skywalking-eyes/license-eye/pkg/header"
 	"github.com/spf13/cobra"
 )
@@ -34,20 +32,15 @@ var FixCommand = &cobra.Command{
 	Aliases: []string{"f"},
 	Long:    "fix command walks the specified paths recursively and fix the license header if the specified files don't have the license header.",
 	RunE: func(cmd *cobra.Command, args []string) error {
-		var config config.Config
-		var result pkg.Result
+		var result header.Result
 
-		if err := config.Parse(cfgFile); err != nil {
-			return err
-		}
-
-		if err := header.Check(&config.Header, &result); err != nil {
+		if err := header.Check(&Config.Header, &result); err != nil {
 			return err
 		}
 
 		var errors []string
 		for _, file := range result.Failure {
-			if err := header.Fix(file, &config.Header, &result); err != nil {
+			if err := header.Fix(file, &Config.Header, &result); err != nil {
 				errors = append(errors, err.Error())
 			}
 		}
diff --git a/license-eye/commands/root.go b/license-eye/commands/root.go
index ab16bf8..fbe6b01 100644
--- a/license-eye/commands/root.go
+++ b/license-eye/commands/root.go
@@ -18,19 +18,21 @@
 package commands
 
 import (
-	headercommand "github.com/apache/skywalking-eyes/license-eye/commands/header"
 	"github.com/apache/skywalking-eyes/license-eye/internal/logger"
+	"github.com/apache/skywalking-eyes/license-eye/pkg/config"
 
 	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 )
 
 var (
-	verbosity string
+	verbosity  string
+	configFile string
+	Config     config.Config
 )
 
-// Root represents the base command when called without any subcommands
-var Root = &cobra.Command{
+// root represents the base command when called without any subcommands
+var root = &cobra.Command{
 	Use:           "license-eye command [flags]",
 	Long:          "A full-featured license guard to check and fix license headers and dependencies' licenses",
 	SilenceUsage:  true,
@@ -41,17 +43,24 @@ var Root = &cobra.Command{
 			return err
 		}
 		logger.Log.SetLevel(level)
+
+		if err := Config.Parse(configFile); err != nil {
+			return err
+		}
+
 		return nil
 	},
 	Version: version,
 }
 
 // Execute sets flags to the root command appropriately.
-// This is called by main.main(). It only needs to happen once to the Root.
+// This is called by main.main(). It only needs to happen once to the root.
 func Execute() error {
-	Root.PersistentFlags().StringVarP(&verbosity, "verbosity", "v", logrus.InfoLevel.String(), "log level (debug, info, warn, error, fatal, panic")
+	root.PersistentFlags().StringVarP(&verbosity, "verbosity", "v", logrus.InfoLevel.String(), "log level (debug, info, warn, error, fatal, panic")
+	root.PersistentFlags().StringVarP(&configFile, "config", "c", ".licenserc.yaml", "the config file")
 
-	Root.AddCommand(headercommand.Header)
+	root.AddCommand(Header)
+	root.AddCommand(Deps)
 
-	return Root.Execute()
+	return root.Execute()
 }
diff --git a/license-eye/go.mod b/license-eye/go.mod
index 096d2fb..c66062d 100644
--- a/license-eye/go.mod
+++ b/license-eye/go.mod
@@ -7,6 +7,8 @@ require (
 	github.com/google/go-github/v33 v33.0.0
 	github.com/sirupsen/logrus v1.7.0
 	github.com/spf13/cobra v1.1.1
+	golang.org/x/mod v0.4.0
 	golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45
+	golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e
 	gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776
 )
diff --git a/license-eye/go.sum b/license-eye/go.sum
index b1a492f..2da1b0f 100644
--- a/license-eye/go.sum
+++ b/license-eye/go.sum
@@ -16,6 +16,7 @@ github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
+github.com/apache/skywalking-eyes v0.0.0-20201226021955-d798d4f56aa5 h1:cMn7kz937Lz92NBpMXbawQlizM4qe3LYMil+DWQxznE=
 github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
 github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
 github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
@@ -199,6 +200,8 @@ golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACk
 golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5 h1:58fnuSXlxZmFdJyvtTFVmVhcMLU6v5fEb/ok4wyqtNU=
 golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
+golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550 h1:ObdrDkeb4kJdCP557AjRjq69pTHfNouLtWZG7j9rPN8=
+golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
@@ -216,7 +219,10 @@ golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHl
 golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE=
 golang.org/x/mobile v0.0.0-20190719004257-d2bd2a29d028/go.mod h1:E/iHnbuqvinMTCcRqshq8CkpyQDoeVncDDYHnLhea+o=
 golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKGUJ2LatrhH/nqhxcFungHvyanc=
+golang.org/x/mod v0.1.0 h1:sfUMP1Gu8qASkorDVjnMuvgJzwFbTZSeXFiGBYAVdl4=
 golang.org/x/mod v0.1.0/go.mod h1:0QHyrYULN0/3qlju5TqG8bIK38QM8yzMo5ekMj3DlcY=
+golang.org/x/mod v0.4.0 h1:8pl+sMODzuvGJkmj2W4kZihvVb5mKm8pB/X44PIQHv8=
+golang.org/x/mod v0.4.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20181023162649-9b4f9f5ad519/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -281,7 +287,13 @@ golang.org/x/tools v0.0.0-20190911174233-4f2ddba30aff/go.mod h1:b+2E5dAYhXwXZwtn
 golang.org/x/tools v0.0.0-20191012152004-8de300cfc20a/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191112195655-aa38f8e97acc h1:NCy3Ohtk6Iny5V/reW2Ktypo4zIpWBdRJ1uFMjBxdg8=
 golang.org/x/tools v0.0.0-20191112195655-aa38f8e97acc/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e h1:aZzprAO9/8oim3qStq3wc1Xuxx4QmAGriC4VU4ojemQ=
+golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20201224043029-2b0845dc783e h1:4nW4NLDYnU28ojHaHO8OVxFHk/aQ33U01a9cjED+pzE=
+golang.org/x/tools v0.0.0-20201226215659-b1c90890d22a h1:pdfjQ7VswBeGam3EpuEJ4e8EAb7JgaubV570LO/SIQM=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898 h1:/atklqdjdhuosWIl6AIbOeHJjicWYPqR9bpxqxYG2pA=
+golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/api v0.4.0/go.mod h1:8k5glujaEP+g9n7WNsDg8QP6cUVNI86fCNMcbazEtwE=
 google.golang.org/api v0.7.0/go.mod h1:WtwebWUNSVBH/HAw79HIFXZNqEvBhG+Ra+ax0hx3E3M=
 google.golang.org/api v0.8.0/go.mod h1:o4eAsZoiT+ibD93RtjEohWalFOjRDx6CVaqeizhEnKg=
diff --git a/license-eye/pkg/config/config.go b/license-eye/pkg/config/config.go
index 3b7c417..6db18be 100644
--- a/license-eye/pkg/config/config.go
+++ b/license-eye/pkg/config/config.go
@@ -21,6 +21,7 @@ import (
 	"io/ioutil"
 
 	"github.com/apache/skywalking-eyes/license-eye/internal/logger"
+	"github.com/apache/skywalking-eyes/license-eye/pkg/deps"
 	"github.com/apache/skywalking-eyes/license-eye/pkg/header"
 
 	"gopkg.in/yaml.v3"
@@ -28,6 +29,7 @@ import (
 
 type Config struct {
 	Header header.ConfigHeader `yaml:"header"`
+	Deps   deps.ConfigDeps     `yaml:"dependency"`
 }
 
 // Parse reads and parses the header check configurations in config file.
@@ -44,5 +46,9 @@ func (config *Config) Parse(file string) error {
 		return err
 	}
 
+	if err := config.Deps.Finalize(file); err != nil {
+		return err
+	}
+
 	return nil
 }
diff --git a/license-eye/pkg/config/config.go b/license-eye/pkg/deps/config.go
similarity index 58%
copy from license-eye/pkg/config/config.go
copy to license-eye/pkg/deps/config.go
index 3b7c417..b682aa4 100644
--- a/license-eye/pkg/config/config.go
+++ b/license-eye/pkg/deps/config.go
@@ -1,3 +1,4 @@
+//
 // Licensed to Apache Software Foundation (ASF) under one or more contributor
 // license agreements. See the NOTICE file distributed with
 // this work for additional information regarding copyright
@@ -14,34 +15,24 @@
 // KIND, either express or implied.  See the License for the
 // specific language governing permissions and limitations
 // under the License.
-//
-package config
+package deps
 
 import (
-	"io/ioutil"
-
-	"github.com/apache/skywalking-eyes/license-eye/internal/logger"
-	"github.com/apache/skywalking-eyes/license-eye/pkg/header"
-
-	"gopkg.in/yaml.v3"
+	"path/filepath"
 )
 
-type Config struct {
-	Header header.ConfigHeader `yaml:"header"`
+type ConfigDeps struct {
+	Files []string `yaml:"files"`
 }
 
-// Parse reads and parses the header check configurations in config file.
-func (config *Config) Parse(file string) error {
-	logger.Log.Infoln("Loading configuration from file:", file)
-
-	if bytes, err := ioutil.ReadFile(file); err != nil {
-		return err
-	} else if err := yaml.Unmarshal(bytes, config); err != nil {
+func (config *ConfigDeps) Finalize(configFile string) error {
+	configFileAbsPath, err := filepath.Abs(configFile)
+	if err != nil {
 		return err
 	}
 
-	if err := config.Header.Finalize(); err != nil {
-		return err
+	for i, file := range config.Files {
+		config.Files[i] = filepath.Join(filepath.Dir(configFileAbsPath), file)
 	}
 
 	return nil
diff --git a/license-eye/pkg/deps/golang.go b/license-eye/pkg/deps/golang.go
new file mode 100644
index 0000000..c198373
--- /dev/null
+++ b/license-eye/pkg/deps/golang.go
@@ -0,0 +1,166 @@
+//
+// Licensed to Apache Software Foundation (ASF) under one or more contributor
+// license agreements. See the NOTICE file distributed with
+// this work for additional information regarding copyright
+// ownership. Apache Software Foundation (ASF) licenses this file to you under
+// the Apache License, Version 2.0 (the "License"); you may
+// not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+package deps
+
+import (
+	"context"
+	"fmt"
+	"go/build"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"regexp"
+
+	"github.com/apache/skywalking-eyes/license-eye/internal/logger"
+	"github.com/apache/skywalking-eyes/license-eye/pkg/license"
+	"golang.org/x/mod/modfile"
+	"golang.org/x/tools/go/packages"
+)
+
+type GoModeResolver struct {
+	Resolver
+}
+
+func (resolver *GoModeResolver) CanResolve(file string) bool {
+	base := filepath.Base(file)
+	logger.Log.Debugln("Base name:", base)
+	return base == "go.mod"
+}
+
+// Resolve resolves licenses of all dependencies declared in the go.mod file.
+func (resolver *GoModeResolver) Resolve(goModFile string, report *Report) error {
+	content, err := ioutil.ReadFile(goModFile)
+	if err != nil {
+		return err
+	}
+
+	file, err := modfile.Parse(goModFile, content, nil)
+	if err != nil {
+		return err
+	}
+
+	logger.Log.Debugln("Resolving module:", file.Module.Mod)
+
+	if err := os.Chdir(filepath.Dir(goModFile)); err != nil {
+		return err
+	}
+
+	requiredPkgNames := make([]string, len(file.Require))
+	for i, require := range file.Require {
+		requiredPkgNames[i] = require.Mod.Path
+	}
+
+	logger.Log.Debugln("Required packages:", requiredPkgNames)
+
+	if err := resolver.ResolvePackages(requiredPkgNames, report); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// ResolvePackages resolves the licenses of the given packages.
+func (resolver *GoModeResolver) ResolvePackages(pkgNames []string, report *Report) error {
+	requiredPkgs, err := packages.Load(&packages.Config{
+		Context: context.Background(),
+		Mode:    packages.NeedName | packages.NeedFiles | packages.NeedCompiledGoFiles | packages.NeedImports | packages.NeedDeps,
+	}, pkgNames...)
+
+	if err != nil {
+		return err
+	}
+
+	packages.Visit(requiredPkgs, func(p *packages.Package) bool {
+		err := resolver.ResolvePackageLicense(p, report)
+		if err != nil {
+			logger.Log.Warnln("Failed to resolve the license of dependency:", p.PkgPath, err)
+			report.Skip(&Result{
+				Dependency:    p.PkgPath,
+				LicenseSpdxID: []string{Unknown},
+			})
+		}
+		return true
+	}, nil)
+
+	return nil
+}
+
+var possibleLicenseFileName = regexp.MustCompile(`(?i)^LICENSE|LICENCE(\.txt)?$`)
+
+func (resolver *GoModeResolver) ResolvePackageLicense(p *packages.Package, report *Report) error {
+	var filesInPkg []string
+	if len(p.GoFiles) > 0 {
+		filesInPkg = p.GoFiles
+	} else if len(p.CompiledGoFiles) > 0 {
+		filesInPkg = p.CompiledGoFiles
+	} else if len(p.OtherFiles) > 0 {
+		filesInPkg = p.OtherFiles
+	}
+
+	if len(filesInPkg) == 0 {
+		return fmt.Errorf("empty package")
+	}
+
+	absPath, err := filepath.Abs(filesInPkg[0])
+	if err != nil {
+		return err
+	}
+	dir := filepath.Dir(absPath)
+
+	for {
+		files, err := ioutil.ReadDir(dir)
+		if err != nil {
+			return err
+		}
+		for _, info := range files {
+			if !possibleLicenseFileName.MatchString(info.Name()) {
+				continue
+			}
+			licenseFilePath := filepath.Join(dir, info.Name())
+			content, err := ioutil.ReadFile(licenseFilePath)
+			if err != nil {
+				return err
+			}
+			identifier, err := license.Identify(string(content))
+			if err != nil {
+				return err
+			}
+			report.Resolve(&Result{
+				Dependency:      p.PkgPath,
+				LicenseFilePath: licenseFilePath,
+				LicenseContent:  string(content),
+				LicenseSpdxID:   []string{identifier},
+			})
+			return nil
+		}
+		if resolver.shouldStopAt(dir) {
+			break
+		}
+		dir = filepath.Dir(dir)
+	}
+	return nil
+}
+
+func (resolver *GoModeResolver) shouldStopAt(dir string) bool {
+	for _, srcDir := range build.Default.SrcDirs() {
+		if srcDir == dir {
+			return true
+		}
+	}
+	return false
+}
diff --git a/license-eye/commands/header/header.go b/license-eye/pkg/deps/resolve.go
similarity index 58%
rename from license-eye/commands/header/header.go
rename to license-eye/pkg/deps/resolve.go
index 8786217..86fbe96 100644
--- a/license-eye/commands/header/header.go
+++ b/license-eye/pkg/deps/resolve.go
@@ -1,3 +1,4 @@
+//
 // Licensed to Apache Software Foundation (ASF) under one or more contributor
 // license agreements. See the NOTICE file distributed with
 // this work for additional information regarding copyright
@@ -14,27 +15,34 @@
 // KIND, either express or implied.  See the License for the
 // specific language governing permissions and limitations
 // under the License.
-//
-package header
+package deps
 
 import (
-	"github.com/spf13/cobra"
+	"fmt"
 )
 
-var (
-	// cfgFile is the config path to the config file of header command.
-	cfgFile string
-)
+type Resolver interface {
+	CanResolve(string) bool
+	Resolve(string, *Report) error
+}
 
-var Header = &cobra.Command{
-	Use:     "header",
-	Aliases: []string{"h"},
-	Short:   "License header related commands; e.g. check, fix, etc.",
-	Long:    "`header` command walks the specified paths recursively and checks if the specified files have the license header in the config file.",
+var Resolvers = []Resolver{
+	new(GoModeResolver),
 }
 
-func init() {
-	Header.PersistentFlags().StringVarP(&cfgFile, "config", "c", ".licenserc.yaml", "the config file")
-	Header.AddCommand(CheckCommand)
-	Header.AddCommand(FixCommand)
+func Resolve(config *ConfigDeps, report *Report) error {
+	for _, file := range config.Files {
+		for _, resolver := range Resolvers {
+			if !resolver.CanResolve(file) {
+				continue
+			}
+			if err := resolver.Resolve(file, report); err != nil {
+				return err
+			}
+			return nil
+		}
+		return fmt.Errorf("unable to find a resolver to resolve dependency declaration file: %v", file)
+	}
+
+	return nil
 }
diff --git a/license-eye/pkg/deps/result.go b/license-eye/pkg/deps/result.go
new file mode 100644
index 0000000..5ab00d6
--- /dev/null
+++ b/license-eye/pkg/deps/result.go
@@ -0,0 +1,82 @@
+//
+// Licensed to Apache Software Foundation (ASF) under one or more contributor
+// license agreements. See the NOTICE file distributed with
+// this work for additional information regarding copyright
+// ownership. Apache Software Foundation (ASF) licenses this file to you under
+// the Apache License, Version 2.0 (the "License"); you may
+// not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+package deps
+
+import (
+	"fmt"
+	"math"
+	"strings"
+)
+
+type SpdxID string
+
+const (
+	Unknown string = "Unknown"
+)
+
+// Result is a single item that represents a resolved dependency license.
+type Result struct {
+	Dependency      string
+	LicenseFilePath string
+	LicenseContent  string
+	LicenseSpdxID   []string
+}
+
+// Report is a collection of resolved Result.
+type Report struct {
+	Resolved []*Result
+	Skipped  []*Result
+}
+
+// Resolve marks the dependency's license is resolved.
+func (report *Report) Resolve(result *Result) {
+	report.Resolved = append(report.Resolved, result)
+}
+
+// Skip marks the dependency's license is skipped for some reasons.
+func (report *Report) Skip(result *Result) {
+	report.Skipped = append(report.Skipped, result)
+}
+
+func (report *Report) String() string {
+	dWidth, lWidth := .0, .0
+	for _, r := range report.Skipped {
+		dWidth = math.Max(float64(len(r.Dependency)), dWidth)
+		for _, s := range r.LicenseSpdxID {
+			lWidth = math.Max(float64(len(s)), lWidth)
+		}
+	}
+	for _, r := range report.Resolved {
+		dWidth = math.Max(float64(len(r.Dependency)), dWidth)
+		for _, s := range r.LicenseSpdxID {
+			lWidth = math.Max(float64(len(s)), lWidth)
+		}
+	}
+
+	rowTemplate := fmt.Sprintf("%%-%dv | %%%dv\n", int(dWidth), int(lWidth))
+	s := fmt.Sprintf(rowTemplate, "Dependency", "License")
+	s += fmt.Sprintf(rowTemplate, strings.Repeat("-", int(dWidth)), strings.Repeat("-", int(lWidth)))
+	for _, r := range report.Resolved {
+		s += fmt.Sprintf(rowTemplate, r.Dependency, strings.Join(r.LicenseSpdxID, ","))
+	}
+	for _, r := range report.Skipped {
+		s += fmt.Sprintf(rowTemplate, r.Dependency, Unknown)
+	}
+
+	return s
+}
diff --git a/license-eye/pkg/header/check.go b/license-eye/pkg/header/check.go
index ff59b34..0bdccb5 100644
--- a/license-eye/pkg/header/check.go
+++ b/license-eye/pkg/header/check.go
@@ -26,7 +26,6 @@ import (
 	"strings"
 
 	"github.com/apache/skywalking-eyes/license-eye/internal/logger"
-	"github.com/apache/skywalking-eyes/license-eye/pkg"
 	lcs "github.com/apache/skywalking-eyes/license-eye/pkg/license"
 
 	"github.com/bmatcuk/doublestar/v2"
@@ -39,7 +38,7 @@ var (
 )
 
 // Check checks the license headers of the specified paths/globs.
-func Check(config *ConfigHeader, result *pkg.Result) error {
+func Check(config *ConfigHeader, result *Result) error {
 	for _, pattern := range config.Paths {
 		if err := checkPattern(pattern, result, config); err != nil {
 			return err
@@ -51,7 +50,7 @@ func Check(config *ConfigHeader, result *pkg.Result) error {
 
 var seen = make(map[string]bool)
 
-func checkPattern(pattern string, result *pkg.Result, config *ConfigHeader) error {
+func checkPattern(pattern string, result *Result, config *ConfigHeader) error {
 	paths, err := doublestar.Glob(pattern)
 
 	if err != nil {
@@ -72,7 +71,7 @@ func checkPattern(pattern string, result *pkg.Result, config *ConfigHeader) erro
 	return nil
 }
 
-func checkPath(path string, result *pkg.Result, config *ConfigHeader) error {
+func checkPath(path string, result *Result, config *ConfigHeader) error {
 	defer func() { seen[path] = true }()
 
 	if yes, err := config.ShouldIgnore(path); yes || seen[path] || err != nil {
@@ -105,7 +104,7 @@ func checkPath(path string, result *pkg.Result, config *ConfigHeader) error {
 }
 
 // CheckFile checks whether or not the file contains the configured license header.
-func CheckFile(file string, config *ConfigHeader, result *pkg.Result) error {
+func CheckFile(file string, config *ConfigHeader, result *Result) error {
 	if yes, err := config.ShouldIgnore(file); yes || err != nil {
 		if !seen[file] {
 			result.Ignore(file)
diff --git a/license-eye/pkg/header/check_test.go b/license-eye/pkg/header/check_test.go
index cbd898b..b5e8148 100644
--- a/license-eye/pkg/header/check_test.go
+++ b/license-eye/pkg/header/check_test.go
@@ -24,7 +24,6 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/apache/skywalking-eyes/license-eye/pkg"
 	"gopkg.in/yaml.v3"
 )
 
@@ -49,7 +48,7 @@ func TestCheckFile(t *testing.T) {
 	type args struct {
 		name       string
 		file       string
-		result     *pkg.Result
+		result     *Result
 		wantErr    bool
 		hasFailure bool
 	}
@@ -65,7 +64,7 @@ func TestCheckFile(t *testing.T) {
 			cases = append(cases, args{
 				name:       file,
 				file:       file,
-				result:     &pkg.Result{},
+				result:     &Result{},
 				wantErr:    false,
 				hasFailure: false,
 			})
@@ -100,7 +99,7 @@ func TestCheckFileFailure(t *testing.T) {
 	type args struct {
 		name       string
 		file       string
-		result     *pkg.Result
+		result     *Result
 		wantErr    bool
 		hasFailure bool
 	}
@@ -116,7 +115,7 @@ func TestCheckFileFailure(t *testing.T) {
 			cases = append(cases, args{
 				name:       file,
 				file:       file,
-				result:     &pkg.Result{},
+				result:     &Result{},
 				wantErr:    false,
 				hasFailure: true,
 			})
diff --git a/license-eye/pkg/header/config.go b/license-eye/pkg/header/config.go
index df2d630..219a388 100644
--- a/license-eye/pkg/header/config.go
+++ b/license-eye/pkg/header/config.go
@@ -137,12 +137,12 @@ func (config *ConfigHeader) GetLicenseContent() string {
 
 func readLicenseFromSpdx(config *ConfigHeader) (string, error) {
 	spdxID, owner := config.License.SpdxID, config.License.CopyrightOwner
-	filename := fmt.Sprintf("assets/lcs-templates/%v.txt", spdxID)
+	filename := fmt.Sprintf("assets/header-templates/%v.txt", spdxID)
 
 	if spdxID == "Apache-2.0" && ASFNames.MatchString(owner) {
 		// Note that the Apache Software Foundation uses a different source header that is related to our use of a CLA.
 		// Our instructions for our project's source headers are here (https://www.apache.org/legal/src-headers.html#headers).
-		filename = "assets/lcs-templates/Apache-2.0-ASF.txt"
+		filename = "assets/header-templates/Apache-2.0-ASF.txt"
 	}
 
 	content, err := assets.Asset(filename)
diff --git a/license-eye/pkg/header/fix.go b/license-eye/pkg/header/fix.go
index fb8413c..7e6d776 100644
--- a/license-eye/pkg/header/fix.go
+++ b/license-eye/pkg/header/fix.go
@@ -26,13 +26,12 @@ import (
 	"strings"
 
 	"github.com/apache/skywalking-eyes/license-eye/internal/logger"
-	"github.com/apache/skywalking-eyes/license-eye/pkg"
 	"github.com/apache/skywalking-eyes/license-eye/pkg/comments"
 )
 
 // Fix adds the configured license header to the given file.
-func Fix(file string, config *ConfigHeader, result *pkg.Result) error {
-	var r pkg.Result
+func Fix(file string, config *ConfigHeader, result *Result) error {
+	var r Result
 	if err := CheckFile(file, config, &r); err != nil || !r.HasFailure() {
 		logger.Log.Warnln("Try to fix a valid file, do nothing:", file)
 		return err
@@ -51,7 +50,7 @@ func Fix(file string, config *ConfigHeader, result *pkg.Result) error {
 	return nil
 }
 
-func InsertComment(file string, style *comments.CommentStyle, config *ConfigHeader, result *pkg.Result) error {
+func InsertComment(file string, style *comments.CommentStyle, config *ConfigHeader, result *Result) error {
 	stat, err := os.Stat(file)
 	if err != nil {
 		return err
diff --git a/license-eye/pkg/result.go b/license-eye/pkg/header/result.go
similarity index 99%
rename from license-eye/pkg/result.go
rename to license-eye/pkg/header/result.go
index 9333671..068fe75 100644
--- a/license-eye/pkg/result.go
+++ b/license-eye/pkg/header/result.go
@@ -15,7 +15,7 @@
 // specific language governing permissions and limitations
 // under the License.
 //
-package pkg
+package header
 
 import (
 	"fmt"
diff --git a/license-eye/pkg/config/config.go b/license-eye/pkg/license/identifier.go
similarity index 53%
copy from license-eye/pkg/config/config.go
copy to license-eye/pkg/license/identifier.go
index 3b7c417..a20a729 100644
--- a/license-eye/pkg/config/config.go
+++ b/license-eye/pkg/license/identifier.go
@@ -1,3 +1,4 @@
+//
 // Licensed to Apache Software Foundation (ASF) under one or more contributor
 // license agreements. See the NOTICE file distributed with
 // this work for additional information regarding copyright
@@ -14,35 +15,38 @@
 // KIND, either express or implied.  See the License for the
 // specific language governing permissions and limitations
 // under the License.
-//
-package config
+package license
 
 import (
-	"io/ioutil"
+	"fmt"
+	"path/filepath"
+	"strings"
 
-	"github.com/apache/skywalking-eyes/license-eye/internal/logger"
-	"github.com/apache/skywalking-eyes/license-eye/pkg/header"
-
-	"gopkg.in/yaml.v3"
+	"github.com/apache/skywalking-eyes/license-eye/assets"
 )
 
-type Config struct {
-	Header header.ConfigHeader `yaml:"header"`
-}
+const templatesDir = "assets/lcs-templates"
 
-// Parse reads and parses the header check configurations in config file.
-func (config *Config) Parse(file string) error {
-	logger.Log.Infoln("Loading configuration from file:", file)
+// Identify identifies the Spdx ID of the given license content
+func Identify(content string) (string, error) {
+	content = Normalize(content)
 
-	if bytes, err := ioutil.ReadFile(file); err != nil {
-		return err
-	} else if err := yaml.Unmarshal(bytes, config); err != nil {
-		return err
+	templates, err := assets.AssetDir(templatesDir)
+	if err != nil {
+		return "", err
 	}
 
-	if err := config.Header.Finalize(); err != nil {
-		return err
+	for _, template := range templates {
+		t, err := assets.Asset(filepath.Join(templatesDir, template))
+		if err != nil {
+			return "", err
+		}
+		license := string(t)
+		license = Normalize(license)
+		if license == content {
+			return strings.TrimSuffix(template, filepath.Ext(template)), nil
+		}
 	}
 
-	return nil
+	return "", fmt.Errorf("cannot identify license content")
 }
diff --git a/license-eye/pkg/license/norm.go b/license-eye/pkg/license/norm.go
index 6cd5612..1e723f3 100644
--- a/license-eye/pkg/license/norm.go
+++ b/license-eye/pkg/license/norm.go
@@ -30,9 +30,11 @@ var (
 	// meanings, according to the matching guide in https://spdx.dev/license-list/matching-guidelines.
 	// The order matters.
 	normalizers = []Normalizer{
+		VariablesNormalizer,
 		OneLineNormalizer,
 		FlattenSpaceNormalizer,
 		SubstantiveTextsNormalizer,
+		FlattenSpaceNormalizer,
 		strings.ToLower,
 		strings.TrimSpace,
 	}
@@ -116,6 +118,34 @@ var (
 
 		{regexp.MustCompile(`(?i)\b(the )?Apache Software Foundation( \(ASF\))?`), "the ASF"},
 	}
+
+	variables = []struct {
+		regexp      *regexp.Regexp
+		replacement string
+	}{
+		// BSD-3-Clause
+		{
+			regexp.MustCompile(`(?im)(^(Copyright \(c\)) (\d{4}) (.+?) (All rights reserved\.)?$\n?)+`),
+			"$2 [year] [owner]. $5",
+		},
+		{
+			regexp.MustCompile(`(?i)(neither the name of) (.+?) (nor the names of)`),
+			"$1 the copyright holder $3",
+		},
+		// MIT
+		{ // remove optional header
+			regexp.MustCompile(`(?im)^The MIT License \(MIT\)$`),
+			"",
+		},
+		{
+			regexp.MustCompile(`(?im)^(Copyright \(c\)) (\d{4}) (.+?)$`),
+			"$1 [year] [owner]",
+		},
+		{
+			regexp.MustCompile(`(?im)\(including the next paragraph\)`),
+			"",
+		},
+	}
 )
 
 // NormalizePattern applies a chain of Normalizers to the license pattern to make it cleaner for identification.
@@ -169,3 +199,12 @@ func CommentIndicatorNormalizer(text string) string {
 func FlattenSpaceNormalizer(text string) string {
 	return flattenSpace.ReplaceAllString(text, " ")
 }
+
+// VariablesNormalizer replace the variables actual value into variable name.
+func VariablesNormalizer(text string) string {
+	for _, v := range variables {
+		text = v.regexp.ReplaceAllString(text, v.replacement)
+	}
+
+	return text
+}
diff --git a/license-eye/pkg/review/header.go b/license-eye/pkg/review/header.go
index 4ad84e7..b43cfaa 100644
--- a/license-eye/pkg/review/header.go
+++ b/license-eye/pkg/review/header.go
@@ -30,7 +30,6 @@ import (
 	"strings"
 
 	"github.com/apache/skywalking-eyes/license-eye/internal/logger"
-	"github.com/apache/skywalking-eyes/license-eye/pkg"
 	comments2 "github.com/apache/skywalking-eyes/license-eye/pkg/comments"
 	config2 "github.com/apache/skywalking-eyes/license-eye/pkg/config"
 	header2 "github.com/apache/skywalking-eyes/license-eye/pkg/header"
@@ -59,8 +58,8 @@ var (
 )
 
 func init() {
-	if os.Getenv("GITHUB_TOKEN") == "" {
-		logger.Log.Warnln("GITHUB_TOKEN is not set, license-eye won't comment on the pull request")
+	if os.Getenv("INPUT_GITHUB_TOKEN") == "" {
+		logger.Log.Infoln("GITHUB_TOKEN is not set, license-eye won't comment on the pull request")
 		return
 	}
 
@@ -110,7 +109,7 @@ func init() {
 }
 
 // Header reviews the license header, including suggestions on the pull request and an overview of the checks.
-func Header(result *pkg.Result, config *config2.Config) error {
+func Header(result *header2.Result, config *config2.Config) error {
 	if !result.HasFailure() || !IsPR() || gh == nil || config.Header.Comment == header2.Never {
 		return nil
 	}
@@ -171,7 +170,7 @@ func Header(result *pkg.Result, config *config2.Config) error {
 	return nil
 }
 
-func tryReview(result *pkg.Result, config *config2.Config, comments []*github.DraftReviewComment) error {
+func tryReview(result *header2.Result, config *config2.Config, comments []*github.DraftReviewComment) error {
 	tryBestEffortToComment := func() error {
 		if err := doReview(result, comments); err != nil {
 			logger.Log.Warnln("Failed to create review comment, fallback to a plain comment:", err)
@@ -193,7 +192,7 @@ func tryReview(result *pkg.Result, config *config2.Config, comments []*github.Dr
 	return nil
 }
 
-func doReview(result *pkg.Result, comments []*github.DraftReviewComment) error {
+func doReview(result *header2.Result, comments []*github.DraftReviewComment) error {
 	logger.Log.Debugln("Comments:", comments)
 
 	c := Markdown(result)
@@ -257,7 +256,7 @@ func IsPR() bool {
 }
 
 // TODO add fixing guide
-func Markdown(result *pkg.Result) string {
+func Markdown(result *header2.Result) string {
 	return fmt.Sprintf(`
 <!-- %s -->
 [license-eye](https://github.com/apache/skywalking-eyes/tree/main/license-eye) has totally checked %d files.
diff --git a/license-eye/test/testdata/.licenserc_for_test_check.yaml b/license-eye/test/testdata/.licenserc_for_test_check.yaml
index d5cdec0..2821cbe 100644
--- a/license-eye/test/testdata/.licenserc_for_test_check.yaml
+++ b/license-eye/test/testdata/.licenserc_for_test_check.yaml
@@ -25,3 +25,7 @@ header:
     - '**/.DS_Store'
     - '**/.json'
     - '**/exclude_test/**'
+
+dependency:
+  files:
+    - ../../go.mod