analyzer: Add a generic SPDX-document-based "fake" package manager

See spdx/spdx-spec#439 for details.

Signed-off-by: Sebastian Schuberth <sebastian.schuberth@bosch.io>

analyzer/src/funTest/assets/projects/synthetic/spdx-project-expected-output.yml

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+---
+project:
+  id: "SpdxDocumentFile::xyz:0.1.0"
+  definition_file_path: "analyzer/src/funTest/assets/projects/synthetic/spdx/project/project.spdx.yml"
+  declared_licenses:
+  - "Apache-2.0 AND curl AND LicenseRef-Proprietary-ExampleInc"
+  declared_licenses_processed:
+    spdx_expression: "Apache-2.0 AND curl AND LicenseRef-Proprietary-ExampleInc"
+  vcs:
+    type: ""
+    url: ""
+    revision: ""
+    path: ""
+  vcs_processed:
+    type: "Git"
+    url: "<REPLACE_URL_PROCESSED>"
+    revision: "<REPLACE_REVISION>"
+    path: "analyzer/src/funTest/assets/projects/synthetic/spdx/project"
+  homepage_url: "https://example.com/products/xyz"
+  scopes:
+  - name: "default"
+    dependencies:
+    - id: "SpdxDocumentFile::curl:7.70.0"
+    - id: "SpdxDocumentFile::openssl:1.1.1g"
+packages:
+- package:
+    id: "SpdxDocumentFile::curl:7.70.0"
+    purl: "pkg:spdxdocumentfile/curl@7.70.0"
+    declared_licenses:
+    - "curl"
+    declared_licenses_processed:
+      spdx_expression: "curl"
+    concluded_license: "NOASSERTION"
+    description: "A command line tool and library for transferring data with URL syntax,\
+      \ supporting HTTP, HTTPS, FTP, FTPS, GOPHER, TFTP, SCP, SFTP, SMB, TELNET, DICT,\
+      \ LDAP, LDAPS, MQTT, FILE, IMAP, SMTP, POP3, RTSP and RTMP. libcurl offers a\
+      \ myriad of powerful features."
+    homepage_url: "https://curl.haxx.se/"
+    binary_artifact:
+      url: ""
+      hash:
+        value: ""
+        algorithm: ""
+    source_artifact:
+      url: ""
+      hash:
+        value: ""
+        algorithm: ""
+    vcs:
+      type: "Git"
+      url: "<REPLACE_URL>"
+      revision: "<REPLACE_REVISION>"
+      path: "analyzer/src/funTest/assets/projects/synthetic/spdx/project/libs/curl"
+    vcs_processed:
+      type: "Git"
+      url: "<REPLACE_URL_PROCESSED>"
+      revision: "<REPLACE_REVISION>"
+      path: "analyzer/src/funTest/assets/projects/synthetic/spdx/project/libs/curl"
+  curations: []
+- package:
+    id: "SpdxDocumentFile::openssl:1.1.1g"
+    purl: "pkg:spdxdocumentfile/openssl@1.1.1g"
+    declared_licenses:
+    - "Apache-2.0"
+    declared_licenses_processed:
+      spdx_expression: "Apache-2.0"
+    concluded_license: "NOASSERTION"
+    description: "OpenSSL is a robust, commercial-grade, full-featured Open Source\
+      \ Toolkit for the Transport Layer Security (TLS) protocol formerly known as\
+      \ the Secure Sockets Layer (SSL) protocol. The protocol implementation is based\
+      \ on a full-strength general purpose cryptographic library, which can also be\
+      \ used stand-alone."
+    homepage_url: "https://www.openssl.org/"
+    binary_artifact:
+      url: ""
+      hash:
+        value: ""
+        algorithm: ""
+    source_artifact:
+      url: ""
+      hash:
+        value: ""
+        algorithm: ""
+    vcs:
+      type: "Git"
+      url: "<REPLACE_URL>"
+      revision: "<REPLACE_REVISION>"
+      path: "analyzer/src/funTest/assets/projects/synthetic/spdx/project/libs/openssl"
+    vcs_processed:
+      type: "Git"
+      url: "<REPLACE_URL_PROCESSED>"
+      revision: "<REPLACE_REVISION>"
+      path: "analyzer/src/funTest/assets/projects/synthetic/spdx/project/libs/openssl"
+  curations: []

analyzer/src/funTest/assets/projects/synthetic/spdx/package/README.md

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+This is the root of a project that stores `package.spdx.yml` files in the directories of its dependencies (one file per
+dependency package).

analyzer/src/funTest/assets/projects/synthetic/spdx/package/libs/curl/README.md

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+This directory contains the source code of the `curl` dependency.

analyzer/src/funTest/assets/projects/synthetic/spdx/package/libs/curl/package.spdx.yml

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+SPDXID: "SPDXRef-DOCUMENT"
+spdxVersion: "SPDX-2.2"
+creationInfo:
+  created: "2020-07-23T18:30:22Z"
+  creators:
+  - "Organization: Example Inc."
+  - "Person: Thomas Steenbergen"
+  licenseListVersion: "3.9"
+name: "curl-7.70.0"
+dataLicense: "CC0-1.0"
+documentNamespace: "http://spdx.org/spdxdocs/spdx-document-curl"
+documentDescribes:
+- "SPDXRef-Package-curl"
+packages:
+- SPDXID: "SPDXRef-Package-curl"
+  comment: "A command line tool and library for transferring data with URL syntax, supporting \
+     HTTP, HTTPS, FTP, FTPS, GOPHER, TFTP, SCP, SFTP, SMB, TELNET, DICT, LDAP, LDAPS, MQTT, FILE, \
+     IMAP, SMTP, POP3, RTSP and RTMP. libcurl offers a myriad of powerful features."
+  copyrightText: "Copyright (c) 1996 - 2020, Daniel Stenberg, <daniel@haxx.se>, and many
+    contributors, see the THANKS file."
+  downloadLocation: "git+github.com:curl/curl.git@53cdc2c963e33bc0cc1a51ad2df79396202e07f8"
+  filesAnalyzed: false
+  homepage: "https://curl.haxx.se/"
+  licenseConcluded: "NOASSERTION"
+  licenseDeclared: "curl"
+  name: "curl"
+  versionInfo: "7.70.0"

analyzer/src/funTest/assets/projects/synthetic/spdx/project/README.md

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+This a project that stores `project.spdx.yml` at its root which describes its dependencies contained in sub-directories
+(one file per project package).

analyzer/src/funTest/assets/projects/synthetic/spdx/project/libs/curl/README.md

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+This directory contains the source code of the `curl` dependency.

analyzer/src/funTest/assets/projects/synthetic/spdx/project/libs/openssl/README.md

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+This directory contains the source code of the `openssl` dependency.

analyzer/src/funTest/assets/projects/synthetic/spdx/project/libs/xyz/README.md

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+This directory contains the source code of the `xyz` dependency.

analyzer/src/funTest/assets/projects/synthetic/spdx/project/project.spdx.yml

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+SPDXID: "SPDXRef-DOCUMENT"
+spdxVersion: "SPDX-2.2"
+creationInfo:
+  created: "2020-07-23T18:30:22Z"
+  creators:
+  - "Organization: Example Inc."
+  - "Person: Thomas Steenbergen"
+  licenseListVersion: "3.9"
+name: "xyz-0.1.0"
+dataLicense: "CC0-1.0"
+documentNamespace: "http://spdx.org/spdxdocs/spdx-document-xyz"
+documentDescribes:
+- "SPDXRef-Package-xyz"
+packages:
+- SPDXID: "SPDXRef-Package-xyz"
+  comment: "Awesome product created by Example Inc."
+  copyrightText: "Copyright (C) 2020 Example Inc."
+  downloadLocation: "git+ssh://gitlab.example.com:3389/products/xyz.git@b2c358080011af6a366d2512a25a379fbe7b1f78"
+  filesAnalyzed: false
+  homepage: "https://example.com/products/xyz"
+  licenseConcluded:  "NOASSERTION"
+  licenseDeclared: "Apache-2.0 AND curl AND LicenseRef-Proprietary-ExampleInc"
+  name: "xyz"
+  versionInfo: "0.1.0"
+- SPDXID: "SPDXRef-Package-curl"
+  comment: "A command line tool and library for transferring data with URL syntax, supporting \
+     HTTP, HTTPS, FTP, FTPS, GOPHER, TFTP, SCP, SFTP, SMB, TELNET, DICT, LDAP, LDAPS, MQTT, FILE, \
+     IMAP, SMTP, POP3, RTSP and RTMP. libcurl offers a myriad of powerful features."
+  copyrightText: "Copyright (c) 1996 - 2020, Daniel Stenberg, <daniel@haxx.se>, and many
+    contributors, see the THANKS file."
+  downloadLocation: "https://github.com/curl/curl/releases/download/curl-7_70_0/curl-7.70.0.tar.gz"
+  filesAnalyzed: false
+  homepage: "https://curl.haxx.se/"
+  licenseConcluded: "NOASSERTION"
+  licenseDeclared: "curl"
+  name: "curl"
+  packageFileName: "./libs/curl"
+  versionInfo: "7.70.0"
+- SPDXID: "SPDXRef-Package-openssl"
+  comment: "OpenSSL is a robust, commercial-grade, full-featured Open Source Toolkit for the Transport Layer Security (TLS) protocol formerly known as the Secure Sockets Layer (SSL) protocol. The protocol implementation is based on a full-strength general purpose cryptographic library, which can also be used stand-alone."
+  copyrightText: "copyright 2004-2020 The OpenSSL Project Authors. All Rights Reserved."
+  downloadLocation: "git+ssh://github.com:openssl/openssl.git@e2e09d9fba1187f8d6aafaa34d4172f56f1ffb72"
+  filesAnalyzed: false
+  homepage: "https://www.openssl.org/"
+  licenseConcluded: "NOASSERTION"
+  licenseDeclared: "Apache-2.0"
+  packageFileName: "./libs/openssl"
+  name: "openssl"
+  versionInfo: "1.1.1g"
+relationships:
+- spdxElementId: "SPDXRef-Package-xyz"
+  relatedSpdxElement: "SPDXRef-Package-curl"
+  relationshipType: "DEPENDS_ON"
+- spdxElementId: "SPDXRef-Package-xyz"
+  relatedSpdxElement: "SPDXRef-Package-openssl"
+  relationshipType: "DEPENDS_ON"

analyzer/src/funTest/kotlin/managers/SpdxDocumentFileTest.kt

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+/*
+ * Copyright (C) 2020 Bosch.IO GmbH
+ *
+ * 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
+ *
+ *     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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * License-Filename: LICENSE
+ */
+
+package org.ossreviewtoolkit.analyzer.managers
+
+import io.kotest.core.spec.style.StringSpec
+import io.kotest.matchers.shouldBe
+
+import java.io.File
+
+import org.ossreviewtoolkit.downloader.VersionControlSystem
+import org.ossreviewtoolkit.utils.normalizeVcsUrl
+import org.ossreviewtoolkit.utils.test.DEFAULT_ANALYZER_CONFIGURATION
+import org.ossreviewtoolkit.utils.test.DEFAULT_REPOSITORY_CONFIGURATION
+import org.ossreviewtoolkit.utils.test.USER_DIR
+import org.ossreviewtoolkit.utils.test.patchExpectedResult
+
+class SpdxDocumentFileTest : StringSpec() {
+    private val projectDir = File("src/funTest/assets/projects/synthetic/spdx").absoluteFile
+    private val vcsDir = VersionControlSystem.forDirectory(projectDir)!!
+    private val vcsUrl = vcsDir.getRemoteUrl()
+    private val vcsRevision = vcsDir.getRevision()
+
+    init {
+        "Project dependencies are detected correctly" {
+            val expectedResult = patchExpectedResult(
+                File(projectDir.parentFile, "spdx-project-expected-output.yml"),
+                url = vcsUrl,
+                urlProcessed = normalizeVcsUrl(vcsUrl),
+                revision = vcsRevision
+            )
+
+            val definitionFile = File(projectDir, "project/project.spdx.yml")
+            val actualResult = createSpdxDocumentFile().resolveSingleProject(definitionFile).toYaml()
+
+            actualResult shouldBe expectedResult
+        }
+    }
+
+    private fun createSpdxDocumentFile() =
+        SpdxDocumentFile(
+            "SpdxDocumentFile",
+            USER_DIR,
+            DEFAULT_ANALYZER_CONFIGURATION,
+            DEFAULT_REPOSITORY_CONFIGURATION
+        )
+}