guitarrapc

bases:
  - ../../agones/overlays/dev
  - ../../configmap/overlays/dev

configurations:
  - nameref.yaml

guitarrapc

public static class TaskExtentions
{
    public static Task<TResult[]> WhenAllFailFast<TResult>(IEnumerable<Task<TResult>> tasks)
    {
        return WhenAllFailFast(tasks.ToArray());
    }
    public static Task<TResult[]> WhenAllFailFast<TResult>(params Task<TResult>[] tasks)
    {
        if (tasks is null) throw new ArgumentNullException(nameof(tasks));
        if (tasks.Length == 0) return Task.FromResult(new TResult[0]);

guitarrapc

// cancel on Source CancellationTokenSource
async Task Main()
{
    using var cts = new CancellationTokenSource();
    var ct = cts.Token;
    var task = FooAsync(ct);
    await Task.Delay(TimeSpan.FromSeconds(3));
    cts.Cancel();
    cts.Dump("cts"); // IsCancellationRequested	True
}

guitarrapc

# run on host...
docker run -it --entrypoint /bin/bash redis
# run inside docker...
apt-get update
apt-get install -y stunnel net-tools 
cat <<EOF > /etc/stunnel/redis-cli.conf
fips = no
setuid = root
setgid = root
pid = /var/run/stunnel.pid

guitarrapc

サブモジュールごと clone したい

git clone https://example.com/repo-with-sub-modules --recursive

サブモジュールのファイルを取得したい

git submodule update --init --recursive

guitarrapc

$ openssl s_client -servername token.actions.githubusercontent.com -showcerts -connect token.actions.githubusercontent.com:443 < /dev/null 2>/dev/null | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' | sed "0,/-END CERTIFICATE-/d" > certificate.crt
$ openssl x509 -in certificate.crt -fingerprint -noout | cut -f2 -d'=' | tr -d ':' | tr '[:upper:]' '[:lower:]'
6938fd4d98bab03faadb97b34396831e3780aea1

guitarrapc

name: dotnet lint

on:
  workflow_dispatch:
  schedule:
    - cron: 0 1 * * 1 # At AM10:00 JST on Monday

env:
  DOTNET_SKIP_FIRST_TIME_EXPERIENCE: 1
  DOTNET_NOLOGO: true

guitarrapc

<Main>g__Operator|4_0 (String, String)
L0000	jmp	System.String.Equals(System.String, System.String)

<Main>g__Equals|4_1 (String, String)
L0000	mov	rax, 0x7fff58527b68
L000a	mov	rax, [rax]
L000d	cmp	[rcx], ecx
L000f	jmp	rax

<Main>g__EqualsComparer|4_2<T> (T, T)

guitarrapc

var profile = "YOUR_PROFILE_NAME";
var credentials = LoadSsoCredentials(profile);

// any operation you want to do with sso credentials.
var s3client = new AmazonS3Client(credentials, RegionEndpoint.APNortheast1);
var buckets = await s3client.ListBucketsAsync();
buckets.Dump();

static AWSCredentials LoadSsoCredentials(string profileName)
{

guitarrapc

// before .NET 5: Array Bound Check emitted. (BAD)
// after .NET 6: Array Bound Check removed. (GOOD)
void A(int[] a)
{
    if (a.Length > 3)
    {
        a[0] = 1;
        a[1] = 2;
        a[2] = 3;
    }