itchyny

#!/bin/bash
set -euo pipefail

echo "Checking zsh installed by Homebrew ..."
if version="$(brew list --versions zsh)"; then
  echo "Found: $version"
else
  echo "Could not find zsh installed by Homebrew"
  exit 1
fi

itchyny

#!/bin/zsh

if [[ "$MACKEREL_AGENT_PLUGIN_META" == 1 ]]; then
  cat <<EOF
# mackerel-agent-plugin
{
  "graphs": {
    "filecount.#": {
      "label": "File count",
      "unit": "integer",

itchyny

#!/bin/bash
set -euo pipefail

cmdname="${BASH_SOURCE[0]##*/}"

temp=$(mktemp -t "$cmdname")
trap 'unlink "$temp"' EXIT
go test -cover -coverprofile="$temp" "$@"
go tool cover -html="$temp"

itchyny

package main

import (
	"fmt"
	"os"
	"sync"
	"sync/atomic"
	"time"
)

itchyny

package main

import (
	"bytes"
	"strings"
)

func main() {}

func JoinPlus(xs []string, sep string) string {

itchyny

#!/bin/bash
set -euo pipefail

git status >/dev/null || exit 1

err=
error_message() {
  printf '%s\n\n' "$*" >&2
  err=1
}

itchyny

#!/bin/bash
set -euxo pipefail

git clone https://github.com/vim/vim.git /tmp/vim
cd /tmp/vim

BACKUP_DIR=/tmp/vim-backup
mkdir -p "$BACKUP_DIR"

while true; do

itchyny

type Xs struct {
	xs  []*X
	idx int
}

func (xs *Xs) prepend(x *X) *Xs {
	if xs.idx == 0 {
		ys := make([]*X, (len(xs.xs)+1)*2)
		xs.idx = len(xs.xs) + 1
		copy(ys[xs.idx+1:], xs.xs)

itchyny

const opt = (s) => `${group(s)}?`;
const chars = (s) => `[${s}]`;
const group = (s) => /^\[[^\]]+\][*+]$/.test(s) ? s : `(?:${s})`;
const or = (...xs) => xs.join('|');
const many = (s) => group(`${s}*`);
const many1 = (s) => group(`${s}+`);
const integer = or('0', `[1-9]${many('[0-9]')}`);
const name = (n, s) => `(?<${n}>${s})`;

itchyny

Go 1.14 の主なregressionです。1.14.1で修正されると思われます。

• runtime: mlock of signal stack failed: 12 #37436
  • 現象: mlockに失敗した時にメッセージ (increase the mlock limit (ulimit -l) or update your kernel to 5.3.15+, 5.4.2+, or 5.5+) を表示してpanicする
  • 根本原因: Linuxカーネルのバグ (https://bugzilla.kernel.org/show_bug.cgi?id=205663)
  • 影響範囲: Linux 5.2.x, 5.3.0-5.3.14, 5.4.0-5.4.1
  • Go側の原因: golang/go#35777 https://go-review.googlesource.com/c/go/+/209899/ https://go-review.googlesource.com/c/go/+/210098
  • 修正: mlockで失敗したらwiki page (https://golang.org/wiki/LinuxKernelSignalVectorBug) へのリンクを表示して継続する、予期しないSIGSEGV, SIGBUGを受けてmlockに失敗していたらstack traceにwiki pageへのリンクを表示する https://go-review.googlesource.com/c/go/+/223417 golang/go#37436 (comment)
  • Go 1.14.1で修正されました