具有 3 个选项的重新模式匹配

Question

这是当前的代码，我正在尝试围绕替代方案进行思考：目前我们有：URL_PREFIX = "http://ourrepo:8081/artifactory"pattern = re.compile(r'^.*-(ngwebui|nodeservice).*$')if pattern.match(artifact):    return URL_PREFIX + "/npm-local/region/%s/-/region/%s-%s" % (artifact, artifact, version)else:    return URL_PREFIX + "/libs-releases-local/org/region/%s/%s/%s-%s" % (artifact, version, artifact, version)我想做的是将另一种称为“dockerservice”的类型合并到其中，其URL_PREFIX值通过URL_PREFIX + "/docker-dev-local/%s-%s" % (artifact, artifact, version)用 ？if ngwebui|nodeservice URL_PREFIX, dockerservice URL_PREFIX, else URL_PREFIX:

Answer 1

一个简单的方法是使用第二个条件：

URL_PREFIX = "http://ourrepo:8081/artifactory"

nodePattern = re.compile(r'^.*-(ngwebui|nodeservice).*$')

dockerPattern = re.compile(r'patternForDocker')

if nodePattern.match(artifact):

    return URL_PREFIX + "/npm-local/region/%s/-/region/%s-%s" % (artifact, artifact, version)

elif dockerPattern.match(artifact):

    return URL_PREFIX + "docker/path/..."

else:

    return URL_PREFIX + "/libs-releases-local/org/region/%s/%s/%s-%s" % (artifact, version, artifact, version)

但一种更具可扩展性的方法是创建模式和路径的映射：

URL_PREFIX = "http://ourrepo:8081/artifactory"

PATHS = {

  '^.*-(ngwebui|nodeservice).*$': "/npm-local/region/%s/-/region/%s-%s" % (artifact, artifact, version),

  '^patternForDocker$': "docker/path/...",

  # other pairs

}

for pattern, path in PATHS.items():

  compiled = re.compile(pattern)

  if compiled.match(artifact):

    return URL_PREFIX + path

return URL_PREFIX + "/libs-releases-local/org/region/%s/%s/%s-%s" % (artifact, version, artifact, version)