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Automated go-redis v8 -> v9 migration

About v8 -> v9

https://redis.com/blog/go-redis-official-redis-client/

Usage:

curl https://gist.githubusercontent.com/dolmen/9f5b4b1892588a5a8948a7c8e116660b/raw/dafeeb86c5c1c1fe80499b0c652f218c3c69aebd/migrate-go-redis-v9.sh | bash

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/*
kh-to-hashcat allows to convert an OpenSSH known_hosts hashed file to a
format that can be used with hashcat to recover hosts.

Note that as the know_hosts file usually contains multiple keys for each host
it is wise to filter the file to a single key type to filter redundant hashes.
Check this stat:

	perl -nE '$c{$1}++ if /^\|1\|[^ ]+ ([^ ]+)/;END{say "$_: $c{$_}" for keys %c}' ~/.ssh/known_hosts

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Advent Of Code 2022

Day 1

Go template

• @dolmen
  • Part 1 (Go): https://go.dev/play/p/C7hbiSq5Hcj
  • Part 2 (Go): https://go.dev/play/p/_O5Uamo34hG
• Part 2 (Go, v2 storing only top 3 loads): https://go.dev/play/p/XG2fDnGtVD-

dolmen

Go text/template hacks

Hacks below use goproc to experiment with Go templates from the command-line.

Convert bool to int

$ echo false | goproc -e '{{.}} => {{index "....\001\000" (len (print .))}}{{"\n"}}'
false => 0
$ echo true | goproc -e '{{.}} => {{index "....\001\000" (len (print .))}}{{"\n"}}'

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github-go-version

Usage

github-go-version <owner>/<repo> <commit>

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# git go-version: shows the Go-modules versionning formatting of a Git commit
git config --global alias.go-version '!f(){ cd -- "${GIT_PREFIX:-.}"; TZ=UTC git log -1 '\''--date=format-local:%Y%m%d%H%M%S'\'' --abbrev=12 '\''--pretty=tformat:v0.0.0-%cd-%h'\'' "$@" ;};f'
# git go-get: shows the command to run on another Go project to upgrade this module
git config --global alias.go-get '!f(){ cd -- "${GIT_PREFIX:-.}"; TZ=UTC git log -1 '\''--date=format-local:%Y%m%d%H%M%S'\'' --abbrev=12 '\''--pretty=tformat:go get '\''"$(go list -m)"'\''@v0.0.0-%cd-%h'\'' "$@" ;};f'
# git go-shorlog: shows the 10 commits in Go-modules versionning style
git config --global alias.go-shortlog '!f(){ cd -- "${GIT_PREFIX:-.}"; TZ=UTC git log -10 '\''--date=format-local:%Y%m%d%H%M%S'\'' --abbrev=12 '\''--pretty=tformat:v0.0.0-%cd-%h %s'\'' "$@" ;};f'

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// Fix (some kinds of) malformed URLs

package main

import (
	"fmt"
	"log"
	"net/url"
)

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go-bin-upgrade

Rebuild the binaries you have built in Go module mode installed in $GOPATH/bin.

Usage: go-bin-upgrade [-n] [-v] bin1 [bin2]...

Examples:

• go-bin-upgrade -n godoc
• (cd ~/go/bin ; go-bin-upgrade * )

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#!/usr/bin/env perl

# Install as a Nautilus script:
#   perl export-400px.pl --install
#
# Install dependencies:
#   sudo aptitude install libimage-exiftool-perl libpath-tiny-perl imagemagick zenity
#
# Author: Olivier Mengué
# Created: Sun Feb 28 20:30:55 2016 +0100

dolmen

package main_test

import (
    "encoding/json"
    "reflect"
)

func checkJSONRoundtrip(t *testing.T, value interface{}, expectedJSON json.RawMessage) bool {
	b, err := json.Marshal(value)
	if err != nil {