This macro takes an issue pattern and an optional 'reason'.
When the `BLOCKED_GITHUB_API_KEY` environment variable is found, or a CI env is detected, this macro will attempt to find the status of the referenced issue.
If the issue has been closed blocked will emit a warning containing the optional 'reason'.
Because this requires network access, it is recommended this is only run in CI builds so as to not slow down the edit-run-debug cycle.
```
// An attribute-like procedural macro is on the todo-list
#![feature(proc_macro_hygiene)]
use blocked::blocked;
# fn hacky_workaround() {}
# fn main() {
blocked!("1", "This code can be removed when the issue is closed");
hacky_workaround();
// The reason is optional
blocked!("1");
# }
```
# Issue patterns
The following issue specifiers are supported (Github only for now)
* `#423` or `423`. Repository and organisation are pulled from the upstream or origin remote if they exist.
* `serde#423` or `serde/423` Organisation is pulled from upstream or origin remote if they exist.
* `serde-rs/serde#423` or `serde-rs/serde/423`
* `http(s)://github.com/serde-rs/serde/issues/423`