Fix the cargo purl bug (#260)

* Fix the cargo purl bug
* Update the requirements.txt

---------

Signed-off-by: 석지영/책임연구원/SW공학(연)Open Source TP <[email protected]>

Author: dd-jy

requirements.txt

@@ -4,7 +4,7 @@ lxml
 virtualenv
 pyyaml
 lastversion
-fosslight_util>=2.1.6
+fosslight_util>=2.1.18
 PyGithub
 requirements-parser
 defusedxml

src/fosslight_dependency/_package_manager.py

@@ -277,6 +277,8 @@ def get_url_to_purl(url, pkg_manager, oss_name='', oss_version=''):
                         purl = f'{purl}#{match.group(2)}'
                 elif pkg_manager == 'go':
                     purl = f'{purl_prefix}lang/{match.group(1)}@{match.group(2)}'
+                elif pkg_manager == 'cargo':
+                    purl = f'{purl_prefix}/{oss_name}@{oss_version}'
             else:
                 if pkg_manager == 'swift':
                     if oss_version:
@@ -286,8 +288,6 @@ def get_url_to_purl(url, pkg_manager, oss_name='', oss_version=''):
                 elif pkg_manager == 'carthage':
                     if oss_version:
                         purl = f'{purl}@{oss_version}'
-                elif pkg_manager == 'cargo':
-                    purl = f'{purl_prefix}/{oss_name}@{oss_version}'
         except Exception:
             logger.debug('Fail to get purl. So use the link purl({purl}).')
     return purl