CLI flags broken after kingpin migration
pgollangi opened this issue · 1 comments
Describe the bug
All nginx-prometheus-exporter
supposed to work with single hyphen, for example -nginx.scrape-uri=http://localhost:8080/metrics
as it was the case with GoLang flags.
However this is no longer the case after migrating CLI parser to alecthomas/kingpin.
CLI flags with single hyphens considered as short flags and reporting errors.
For example following command giving error:
$ nginx-prometheus-exporter -nginx.scrape-uri=http://localhost:8080/metrics
nginx-prometheus-exporter: error: unknown short flag '-n', try --help
To reproduce
Steps to reproduce the behavior:
- Run
nginx-prometheus-exporter
from source or build CLI binary from main branch and runnginx-prometheus-exporter
Expected behavior
nginx-prometheus-exporter
should accept long flags with single hyphens
Your environment
- Version of the Prometheus exporter - revision
3d70ede5acc92bb50dd0fc9caab80cdf1a83082e
- Version of Docker/Kubernetes: 1.24
- [if applicable] Kubernetes platform: GKE
- Using NGINX or NGINX Plus: NGINX
Hi @pgollangi
we haven't released a new version with those changes yet and the plan was to have a breaking change release (bump to v1.0.0
) because of that and other changes.
We could actually add a function to transform the single dash to a double and maybe add a warning that the single one is being deprecated 🤔