Adds globs for .egg-info file for python detection as well as tests (#296)

* Adds globs for .egg-info file for python detection as well as tests

Signed-off-by: Zach Hill <zach@anchore.com>

* Fix lint error

Signed-off-by: Dan Luhring <dan.luhring@anchore.com>

Co-authored-by: Dan Luhring <dan.luhring@anchore.com>

syft/cataloger/python/package_cataloger.go

@@ -11,8 +11,9 @@ import (
 )
 
 const (
-	eggMetadataGlob   = "**/*egg-info/PKG-INFO"
+	eggMetadataGlob     = "**/*egg-info/PKG-INFO"
-	wheelMetadataGlob = "**/*dist-info/METADATA"
+	eggFileMetadataGlob = "**/*.egg-info"
+	wheelMetadataGlob   = "**/*dist-info/METADATA"
 )
 
 type PackageCataloger struct{}
@@ -53,7 +54,7 @@ func (c *PackageCataloger) getPackageEntries(resolver source.Resolver) ([]*packa
 	var metadataLocations []source.Location
 
 	// find all primary record paths
-	matches, err := resolver.FilesByGlob(eggMetadataGlob, wheelMetadataGlob)
+	matches, err := resolver.FilesByGlob(eggMetadataGlob, eggFileMetadataGlob, wheelMetadataGlob)
 	if err != nil {
 		return nil, fmt.Errorf("failed to find files by glob: %w", err)
 	}

syft/cataloger/python/package_cataloger_test.go

@@ -230,6 +230,27 @@ func TestPythonPackageWheelCataloger(t *testing.T) {
 				},
 			},
 		},
+		{
+			MetadataFixture: "test-fixtures/test.egg-info",
+			ExpectedPackage: pkg.Package{
+				Name:         "requests",
+				Version:      "2.22.0",
+				Type:         pkg.PythonPkg,
+				Language:     pkg.Python,
+				Licenses:     []string{"Apache 2.0"},
+				FoundBy:      "python-package-cataloger",
+				MetadataType: pkg.PythonPackageMetadataType,
+				Metadata: pkg.PythonPackageMetadata{
+					Name:                 "requests",
+					Version:              "2.22.0",
+					License:              "Apache 2.0",
+					Platform:             "UNKNOWN",
+					Author:               "Kenneth Reitz",
+					AuthorEmail:          "me@kennethreitz.org",
+					SitePackagesRootPath: "test-fixtures",
+				},
+			},
+		},
 	}
 
 	for _, test := range tests {

syft/cataloger/python/test-fixtures/test.egg-info

@@ -0,0 +1,134 @@
+Metadata-Version: 2.1
+Name: requests
+Version: 2.22.0
+Summary: Python HTTP for Humans.
+Home-page: http://python-requests.org
+Author: Kenneth Reitz
+Author-email: me@kennethreitz.org
+License: Apache 2.0
+Description: Requests: HTTP for Humans™
+        ==========================
+        
+        [![image](https://img.shields.io/pypi/v/requests.svg)](https://pypi.org/project/requests/)
+        [![image](https://img.shields.io/pypi/l/requests.svg)](https://pypi.org/project/requests/)
+        [![image](https://img.shields.io/pypi/pyversions/requests.svg)](https://pypi.org/project/requests/)
+        [![codecov.io](https://codecov.io/github/requests/requests/coverage.svg?branch=master)](https://codecov.io/github/requests/requests)
+        [![image](https://img.shields.io/github/contributors/requests/requests.svg)](https://github.com/requests/requests/graphs/contributors)
+        [![image](https://img.shields.io/badge/Say%20Thanks-!-1EAEDB.svg)](https://saythanks.io/to/kennethreitz)
+        
+        Requests is the only *Non-GMO* HTTP library for Python, safe for human
+        consumption.
+        
+        ![image](https://farm5.staticflickr.com/4317/35198386374_1939af3de6_k_d.jpg)
+        
+        Behold, the power of Requests:
+        
+        ``` {.sourceCode .python}
+        >>> import requests
+        >>> r = requests.get('https://api.github.com/user', auth=('user', 'pass'))
+        >>> r.status_code
+        200
+        >>> r.headers['content-type']
+        'application/json; charset=utf8'
+        >>> r.encoding
+        'utf-8'
+        >>> r.text
+        u'{"type":"User"...'
+        >>> r.json()
+        {u'disk_usage': 368627, u'private_gists': 484, ...}
+        ```
+        
+        See [the similar code, sans Requests](https://gist.github.com/973705).
+        
+        [![image](https://raw.githubusercontent.com/requests/requests/master/docs/_static/requests-logo-small.png)](http://docs.python-requests.org/)
+        
+        Requests allows you to send *organic, grass-fed* HTTP/1.1 requests,
+        without the need for manual labor. There's no need to manually add query
+        strings to your URLs, or to form-encode your POST data. Keep-alive and
+        HTTP connection pooling are 100% automatic, thanks to
+        [urllib3](https://github.com/shazow/urllib3).
+        
+        Besides, all the cool kids are doing it. Requests is one of the most
+        downloaded Python packages of all time, pulling in over 11,000,000
+        downloads every month. You don't want to be left out!
+        
+        Feature Support
+        ---------------
+        
+        Requests is ready for today's web.
+        
+        -   International Domains and URLs
+        -   Keep-Alive & Connection Pooling
+        -   Sessions with Cookie Persistence
+        -   Browser-style SSL Verification
+        -   Basic/Digest Authentication
+        -   Elegant Key/Value Cookies
+        -   Automatic Decompression
+        -   Automatic Content Decoding
+        -   Unicode Response Bodies
+        -   Multipart File Uploads
+        -   HTTP(S) Proxy Support
+        -   Connection Timeouts
+        -   Streaming Downloads
+        -   `.netrc` Support
+        -   Chunked Requests
+        
+        Requests officially supports Python 2.7 & 3.4–3.7, and runs great on
+        PyPy.
+        
+        Installation
+        ------------
+        
+        To install Requests, simply use [pipenv](http://pipenv.org/) (or pip, of
+        course):
+        
+        ``` {.sourceCode .bash}
+        $ pipenv install requests
+        ✨🍰✨
+        ```
+        
+        Satisfaction guaranteed.
+        
+        Documentation
+        -------------
+        
+        Fantastic documentation is available at
+        <http://docs.python-requests.org/>, for a limited time only.
+        
+        How to Contribute
+        -----------------
+        
+        1.  Become more familiar with the project by reading our [Contributor's Guide](http://docs.python-requests.org/en/latest/dev/contributing/) and our [development philosophy](http://docs.python-requests.org/en/latest/dev/philosophy/).
+        2.  Check for open issues or open a fresh issue to start a discussion
+            around a feature idea or a bug. There is a [Contributor
+            Friendly](https://github.com/requests/requests/issues?direction=desc&labels=Contributor+Friendly&page=1&sort=updated&state=open)
+            tag for issues that should be ideal for people who are not very
+            familiar with the codebase yet.
+        3.  Fork [the repository](https://github.com/requests/requests) on
+            GitHub to start making your changes to the **master** branch (or
+            branch off of it).
+        4.  Write a test which shows that the bug was fixed or that the feature
+            works as expected.
+        5.  Send a pull request and bug the maintainer until it gets merged and
+            published. :) Make sure to add yourself to
+            [AUTHORS](https://github.com/requests/requests/blob/master/AUTHORS.rst).
+        
+        
+Platform: UNKNOWN
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Intended Audience :: Developers
+Classifier: Natural Language :: English
+Classifier: License :: OSI Approved :: Apache Software License
+Classifier: Programming Language :: Python
+Classifier: Programming Language :: Python :: 2
+Classifier: Programming Language :: Python :: 2.7
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3.5
+Classifier: Programming Language :: Python :: 3.6
+Classifier: Programming Language :: Python :: 3.7
+Classifier: Programming Language :: Python :: Implementation :: CPython
+Classifier: Programming Language :: Python :: Implementation :: PyPy
+Requires-Python: >=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*
+Description-Content-Type: text/markdown
+Provides-Extra: security
+Provides-Extra: socks