Note
This does not exist, I am sketching out a design idea.
The go keyword accepts a call expression, evaluates all the terms of the expression up to the point of the call itself, then issues the call inside a newly-created goroutine.
By analogy, the call keyword accepts a call expression and generates a function literal that evalutes that expression.
Although this convention is quite old, I only learned of it fairly recently. One way to pick a "memorable" port number is to use a telephone-style encoding of the digits to their corresponding letters on a (QWERTY) keyboard. So, just as one might spell 364-9255 as "DOG-WALK", you can do the same trick with the keyboard letters.
In tabular format, that is:
1 2 3 4 5 6 7 8 9 0
Q W E R T Y U I O P
A S D F G H J K L ?
Most requests go to https://www.reddit.com[/path], where paths are either /api/... or /r/subreddit/... or similar, depending on the method. API docs give the details.
Many APIs permit unauthenticated access, but Reddit imposes rate limits and—perhaps more annoyingly—blocks various IP ranges (notably a bunch of AWS). Their support does not respond to tickets unless you embarrass them publicly. I lack both the ability and the desire to do that, so I needed another way.
So anyway, the recommended way to talk to the API is using OAuth, which is annoying if all you wanted to do was grab a few stats about your subreddits. Fortunately, they have a lighter-weight auth flow you can use, described in https://github.com/reddit-archive/reddit/wiki/OAuth2#application-only-oauth
In summary:
| #!/usr/bin/env bash | |
| # | |
| # Update the installed version of the AWS CLI on Linux. | |
| # | |
| set -euo pipefail | |
| : ${TMPDIR:=/tmp} | |
| tmp="$(mktemp -d $TMPDIR/awscli.XXXXXXXXXX)" | |
| trap "rm -fr -- '$tmp'" EXIT |
| #!/usr/bin/env bash | |
| # | |
| # Usage: remove-taint.sh <filename> | |
| # | |
| # Remove the annoying mark-of-the-web taint xattrs from a file. | |
| # For some reason macOS ignores a removexattr for these attributes, | |
| # but the taint does not survive a pipe copy and rename. | |
| # | |
| set -euo pipefail |
(see also: https://github.com/creachadair/tlsutil)
A "CA" certificate is basically just a self-signed certificate that someone has blessed. There are a few pedantic details you have to get right in the cert settings if you want a browser to accept it (particularly an older browser), but CLI tools seem to be less picky.
(see also: https://github.com/creachadair/misctools/blob/main/scripts/install-go.sh)
Go allows the definition of named, [experimental features][xpkg], which are established by setting GOEXPERIMENT in the environment. While some of these features are [available at runtime][xrun], some must be enabled when building the toolchain itself. An example of the latter is the [cacheprog experiment][xcp] (as of August 2024).
To enable such an experiment:
cd go/src.
Sometimes you want your Go function to accept either a string or a slice of bytes, at which point the user then has to convert whichever one they have to the version you chose:
func Process(s string) { /* … do stuff with s … */ }
// …
var someBytes = []byte(/* … */)
pkg.Process(string(someBytes))
| #!/usr/bin/env bash | |
| # | |
| # Usage: vm-shutdown.sh [--check|--cancel|--help] | |
| # | |
| # Schedule a shutdown of the system at a time in the future. | |
| # With --check, do not schedule a shutdown, just print the scheduled time. | |
| # With --cancel, cancel a pending shutdown. | |
| # | |
| # Installation: | |
| # |