Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

fix: Find substrate port on different log lines #536

Merged
merged 2 commits into from
May 12, 2022
Merged

fix: Find substrate port on different log lines #536

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
f3c9b83
Find substrate port on different log lines
lexnv May 12, 2022
b61e489
Simplify node_proc line logic
lexnv May 12, 2022
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
20 changes: 11 additions & 9 deletions integration-tests/src/utils/node_proc.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -168,22 +168,24 @@ fn find_substrate_port_from_output(r: impl Read + Send + 'static) -> u16 {
BufReader::new(r)
.lines()
.find_map(|line| {
let line = line
.expect("failed to obtain next line from stdout for port discovery");
let line =
Copy link
Collaborator

@jsdw jsdw May 12, 2022 •
edited
Loading

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I think you could simplify this matching code to be:

// does the line contain our port (we expect this specific output from substrate).
let line_end = line
    .rsplit_once("Listening for new connections on 127.0.0.1:")
    .or_else(|| line.rsplit_once("Running JSON-RPC WS server: addr=127.0.0.1:"))
    .map(|(_,port_str)| port_str)?;

line.expect("failed to obtain next line from stdout for port discovery");

// does the line contain our port (we expect this specific output from substrate).
let line_end = match line.rsplit_once("Listening for new connections on 127.0.0.1:") {
None => return None,
Some((_, after)) => after
};
let line_end = line
.rsplit_once("Listening for new connections on 127.0.0.1:")
.or_else(|| {
line.rsplit_once("Running JSON-RPC WS server: addr=127.0.0.1:")
})
.map(|(_, port_str)| port_str)?;

// trim non-numeric chars from the end of the port part of the line.
let port_str = line_end.trim_end_matches(|b| !('0'..='9').contains(&b));

// expect to have a number here (the chars after '127.0.0.1:') and parse them into a u16.
let port_num = port_str
.parse()
.unwrap_or_else(|_| panic!("valid port expected on 'Listening for new connections' line, got '{port_str}'"));
let port_num = port_str.parse().unwrap_or_else(|_| {
panic!("valid port expected for log line, got '{port_str}'")
});

Some(port_num)
})
Expand Down