Use wget instead of curl in otel-dotnet-auto-install.sh

[codefromthecrypt]

Feature Request

I'd like otel-dotnet-auto-install.sh to use wget instead of curl

Is your feature request related to a problem? Please describe.

.net has an alpine runtime image, and I'd prefer to not install any packages to get otel-dotnet-auto-install.sh to complete

Describe the solution you'd like

otel-dotnet-auto-install.sh should be possible to change to wget and in doing so make it zero hassle. that or check which is present and use wget when curl isn't.

Describe alternatives you've considered

right now, I temporarily install curl

Additional context

nope

[Kielek]

As I remember, you cannot use wget on Windows, curl is available.
I am not sure what is the perspective of other @open-telemetry/dotnet-instrumentation-approvers, but we could consider checking availability of curl, if it not available, we could fallback to wget.

[pellared]

but we could consider checking availability of curl, if it not available, we could fallback to wget.

IMO this is the way. See https://stackoverflow.com/a/677212

[codefromthecrypt]

Good idea on SO, I smashed the question into a prompt ;)

Grok 3 think mode came up with this. It is simpler than defining a shell function, which is how I usually do it.

#!/bin/sh

Detect the downloader once

if command -v curl > /dev/null 2>&1; then
DOWNLOADER="curl -s -o"
elif command -v wget > /dev/null 2>&1; then
DOWNLOADER="wget -q -O"
else
echo "Error: Neither curl nor wget is available." >&2
exit 1
fi

Get URL and output file from arguments

url="$1"
output_file="$2"

Perform the download

$DOWNLOADER "$output_file" "$url"

[codefromthecrypt]

Fwiw I haven't used 'command' before for detection.. usually i dutifully look up the version flag and use that and if it fails assume the binary isn't in the path. I think this 'command' route is more suitable and probably will change some of my scripts ;)

[Kielek]

@codefromthecrypt, would you like to prepare PR with the enhancement?

[codefromthecrypt]

Sure why not!

[codefromthecrypt]

#4076