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Disable color output when redirecting stderr (#742)

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I'm still confused about it, but this seems to do the right thing?

`HierarchicalLayer` internally has [`let ansi =
io::stderr().is_terminal();`](fcd9eed252/src/lib.rs (L74)),
so the logging itself is already correctly uncolored, but errors in the
log weren't.

Test command, ran with network deactivated:

```shell
RUST_LOG=debug cargo run --bin puffin -- pip-compile -v ./scripts/popular_packages/pypi_8k_downloads.txt 2> log.txt
```

**Before**

```
error: Request error: error sending request for url (https://pypi.org/simple/apache-airflow-providers-dbt-cloud/): error trying to connect: dns error: failed to lookup address information: Temporary failure in name resolution
  Caused by: error sending request for url (https://pypi.org/simple/apache-airflow-providers-dbt-cloud/): error trying to connect: dns error: failed to lookup address information: Temporary failure in name resolution
  Caused by: error trying to connect: dns error: failed to lookup address information: Temporary failure in name resolution
  Caused by: dns error: failed to lookup address information: Temporary failure in name resolution
  Caused by: failed to lookup address information: Temporary failure in name resolution
  ```

  **After**

  ```
  error: Request error: error sending request for url (https://pypi.org/simple/fissix/): error trying to connect: dns error: failed to lookup address information: Temporary failure in name resolution
    Caused by: error sending request for url (https://pypi.org/simple/fissix/): error trying to connect: dns error: failed to lookup address information: Temporary failure in name resolution
    Caused by: error trying to connect: dns error: failed to lookup address information: Temporary failure in name resolution
    Caused by: dns error: failed to lookup address information: Temporary failure in name resolution
    Caused by: failed to lookup address information: Temporary failure in name resolution
```
This commit is contained in:
konsti 2024-01-04 16:43:44 +01:00 • committed by GitHub
parent 92c780ec2f
commit 9b77a8873e
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5
crates/puffin-cli/src/logging.rs
View file

@ -1,3 +1,4 @@
use std::io::IsTerminal;
use tracing::level_filters::LevelFilter;
use tracing_subscriber::layer::SubscriberExt;
use tracing_subscriber::util::SubscriberInitExt;
@ -21,6 +22,10 @@ pub(crate) enum Level {
/// environment variable) along with the formatting of the output. For example, [`Level::Verbose`]
/// includes targets and timestamps, along with all `puffin=debug` messages by default.
pub(crate) fn setup_logging(level: Level) {
if !std::io::stderr().is_terminal() {
colored::control::set_override(false);
}
match level {
Level::Default => {
// Show nothing, but allow `RUST_LOG` to override.