hi, I found an interesting thing about the naming style of current command arguments. it is a little difference across different components. you can see nova/quantum/swift/keystone are using both dash '-' and underline '_'. Only keystone is mixed with two style: --xx_yyy_zzz --xx-yyy-zzz And glance use the --xx-yyy-zzz style which only contains dash '-'. IMO, it's better to be consisitent in naming style for all core components, including the usage text. secondly, avoid using same argument name with different meanings or different argument name for the same meaning. Thirdly, keep it simple as possible, don't use unnecessary symbols.
----------------------------------------------
project\style --xx_yyy_zzz --xx-yyy-zzz
----------------------------------------------
nova Yes No
quantum Yes No
swift Yes No
keystone Yes Yes
glance No Yes
----------------------------------------------
usage: nova [--debug] [--no_cache] [--timings] [--os_username OS_USERNAME]
[--os_password OS_PASSWORD] [--os_tenant_name OS_TENANT_NAME]
[--os_auth_url OS_AUTH_URL] [--os_region_name OS_REGION_NAME]
[--service_type SERVICE_TYPE] [--service_name SERVICE_NAME]
[--volume_service_name VOLUME_SERVICE_NAME]
[--endpoint_type ENDPOINT_TYPE]
[--os_compute_api_version OS_COMPUTE_API_VERSION]
[--username USERNAME] [--region_name REGION_NAME]
[--apikey APIKEY] [--projectid PROJECTID] [--url URL]
[--bypass_url BYPASS_URL]
<subcommand> ...
usage: quantum [--version] [-v] [-q] [-h] [--debug]
[--os_auth_strategy <auth_strategy>] [--os_auth_url
<auth_url>]
[--os_tenant_name <auth_tenant_name>]
[--os_username <auth_username>] [--os_password
<auth_password>]
[--os_region_name <auth_region_name>] [--os_token <token>]
[--os_url <url>]
swift
Options:
--version show program's version number and exit
-h, --help show this help message and exit
-s, --snet Use SERVICENET internal network
-v, --verbose Print more info
-q, --quiet Suppress status output
-A AUTH, --auth=AUTH URL for obtaining an auth token
-V AUTH_VERSION, --auth-version=AUTH_VERSION
Specify a version for authentication(default: 1.0)
-U USER, --user=USER User name for obtaining an auth token
-K KEY, --key=KEY Key for obtaining an auth token
--os_auth_url=OS_AUTH_URL
Openstack auth URL. Defaults to env[OS_AUTH_URL].
--os_username=OS_USERNAME
Openstack username. Defaults to env[OS_USERNAME].
--os_tenant_name=OS_TENANT_NAME
Openstack tenant name.Defaults to env
[OS_TENANT_NAME].
--os_password=OS_PASSWORD
Openstack password. Defaults to env[OS_PASSWORD].
usage: keystone [--os-username <auth-user-name>]
[--os-password <auth-password>]
[--os-tenant-name <auth-tenant-name>]
[--os-tenant-id <tenant-id>] [--os-auth-url <auth-url>]
[--os-region-name <region-name>]
[--os-identity-api-version <identity-api-version>]
[--token <service-token>] [--endpoint <service-endpoint>]
[--os_cacert <ca-certificate>] [--os_cert <certificate>]
[--os_key <key>] [--username <auth-user-name>]
[--password <auth-password>] [--tenant_name <tenant-name>]
[--auth_url <auth-url>] [--region_name <region-name>]
<subcommand> ...
usage: glance [--os-username OS_USERNAME] [--os-password OS_PASSWORD]
[--os-tenant-id OS_TENANT_ID] [--os-tenant-name
OS_TENANT_NAME]
[--os-auth-url OS_AUTH_URL] [--os-region-name OS_REGION_NAME]
[--os-auth-token OS_AUTH_TOKEN] [--os-image-url OS_IMAGE_URL]
[--os-image-api-version OS_IMAGE_API_VERSION]
[--os-service-type OS_SERVICE_TYPE]
<subcommand> ...
Best Regards,
Edward Zhang(张华) 地址:北京市海淀区东北旺西路8号 中关村
Staff Software Engineer 软件园28号楼 环宇大厦3层 邮编：100193
Travel&Transportation Standards Address: 3F Ring, Building 28
Emerging Technology Institute(ETI) Zhongguancun Software Park, 8
IBM China Software Development Lab Dongbeiwang West Road, Haidian
e-mail: zhu...@cn.ibm.com District, Beijing, P.R.C.100193
Notes ID: Hua ZZ Zhang/China/IBM
Tel: 86-10-82450483
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