new file that get changed files of gerrit change

gerrit/gerrit_get_files_from_change.py

@@ -0,0 +1,90 @@
+'''
+find all changed files of every changes in gerrit
+
+author: s1mple-child
+'''
+import json
+import sys
+import requests
+
+
+# find changed files via gerrit REST API
+def get_changed_files(gerrit_ip, project_name, branch_name, change_id, revision_id):
+    """
+    get changed files from change in gerrit
+    :param gerrit_ip: gerrit ip address
+    :param project_name: project name of change
+    :param branch_name: target branch name of change
+    :param change_id: change id
+    :param revision_id: revision of change 
+    """
+    files_list = []
+    # create http request session
+    http_session = create_access_session(gerrit_ip)
+    # set gerrit port
+    gerrit_port = set_gerrit_port(gerrit_ip)
+
+    # replace '/' in project_name for http request
+    if '/' in project_name:
+        project_name = project_name.replace('/', '%2F')
+    files_finding_response = http_session.get('http://' + gerrit_ip + ':' + gerrit_port + '/a/changes/' 
+    + project_name + '~' + branch_name + '~' + change_id + '/revisions/' + revision_id 
+    + '/files/').text.replace(')]}\'', '')
+    for key in json.loads(files_finding_response):
+        files_list.append(key)
+
+    print(files_list)
+
+
+# create http access session in gerrit
+def create_access_session(gerrit_ip):
+    """
+    create http access session for http request in gerrit
+    :param gerrit_ip: gerrit ip address
+    :return: session: a session to request with gerrit admin username and http credential
+    """
+    # set admin username and http credential in gerrit with different gerrit instances
+    gerrit_admin_username, gerrit_admin_http_cred = set_admin_username_n_http_cred(gerrit_ip)
+    # create session
+    session = requests.Session()
+    session.auth = (gerrit_admin_username, gerrit_admin_http_cred)
+
+    return session
+
+# in my use case, gerrit always have diffenent ports after deployed
+# set port number with given gerrit ip address
+def set_gerrit_port(gerrit_ip):
+    """
+    set gerrit port with given gerrit ip address
+    :param gerrit_ip: gerrit ip address
+    :return: gerrit_port: port number of gerrit
+    """
+    gerrit_port = ''
+    if gerrit_ip == 'gerrit.ip.addr.1':
+        gerrit_port = '1111'
+    elif gerrit_ip == 'gerrit.ip.addr.2':
+        gerrit_port = '2222'
+    return gerrit_port
+
+
+# set admin user name and http credential
+def set_admin_username_n_http_cred(gerrit_ip):
+    """
+    set gerrit system administrator username and http credential
+    :param gerrit_ip: gerrit ip address
+    :return: admin_user_name: username of gerrit system administrator
+    :return: admin_http_cred: http credential of this gerrit administrator
+    """
+    admin_user_name = ''
+    admin_http_cred = ''
+    if gerrit_ip == 'gerrit.ip.addr.1':
+        admin_user_name = 'user1'
+        admin_http_cred = 'http_cred1'
+    elif gerrit_ip == 'gerrit.ip.addr.2':
+        admin_user_name = 'user2'
+        admin_http_cred = 'http_cred2'
+
+    return admin_user_name, admin_http_cred
+
+
+get_changed_files(sys.argv[1], sys.argv[2], sys.argv[3], sys.argv[4], sys.argv[5])