arnehormann’s gists

arnehormann / test-rand.go

Last active August 26, 2015 17:49

benchmarks for possible implementations for github.com/golang/go/issues/6721

	package main

	import (
	"math"
	"testing"
	)

	const bits32 = 24
	const step32 float32 = 1 / (1 << bits32)
	const mask32 uint32 = (1 << bits32) - 1

arnehormann / compress.go

Last active August 29, 2015 14:26

Check speed and compression of `compress/flate` and `compress/gzip` against the `github.com/klauspost/compress` variants. Please read the comment below!

	package main

	import (
	"encoding/binary"
	"flag"
	"fmt"
	"io"
	"os"
	"runtime"
	"sort"

arnehormann / sqlassist.go

Last active August 29, 2015 14:11

go sql helper

	import (
	"database/sql"
	"fmt"
	"reflect"
	)

	type Field interface {
	Name() string
	Ptr() interface{}
	Tags() string

arnehormann / int-ranges.go

Created December 4, 2014 09:26

Support code for tests in confactor/envflags

	package main

	import (
	"fmt"
	"io"
	"math/big"
	"os"
	)

	func generateIntBounds(w io.Writer) {

arnehormann / envflag-example.go

Last active August 29, 2015 14:10

Just an example for envflag (soon to be expanded at github.com/confactor/envflag)

	// see http://godoc.org/github.com/arnehormann/goof/envflag
	package main

	import (
	"fmt"
	"io"
	"os"
	"sort"
	"strings"
	"text/tabwriter"

arnehormann / static-nginx.sh

Last active August 5, 2019 13:10

	#!/bin/bash

	### build nginx/openresty as a static binary with most recent libraries.
	### apart from build tools, this script depends on sha256sum, tar, curl.

	# features
	ENABLE_MAIL="${ENABLE_EMAIL:-true}"
	ENABLE_MEDIA="${ENABLE_MEDIA:-true}"
	ENABLE_WEBDAV="${ENABLE_WEBDAV:-true}"

arnehormann / restart.go

Created September 17, 2014 11:51

	package main

	import (
	"errors"
	"fmt"
	"os"
	"time"

	pipe "gopkg.in/pipe.v2"
	)

arnehormann / repostats.sh

Created June 13, 2014 09:42

count LOC in .git folders per language

	#!/bin/bash
	set -e -u -o pipefail # -x
	echo $'Project\tCommit\tBranch\tFiletype\tLines'
	for dir in *.git; do
	export GIT_DIR="$dir"
	export PREFIX=$(git for-each-ref --count=1 --sort=committerdate --format=$'%(objectname)\t%(refname)')
	export BRANCH=$(echo -e "${PREFIX}" \| cut -d $'\t' -f 1)
	##### from these filetypes #####
	for filetype in java cs rb go py as php html htm css js json xml conf cnf; do
	echo -n -e "${dir}\t${PREFIX}\t${filetype}\t"

arnehormann / mysql12f.sh

Last active August 29, 2015 14:02

Startup MySQL

	#!/bin/bash

	set -e -u -o pipefail

	PWD=`pwd`
	WHOAMI=`whoami`

	BASEDIR=${MYSQL_SERVER_BASEDIR?missing MYSQL_SERVER_BASEDIR}

	# default directories are subdirectories of where this script was run from

arnehormann / reflect-path.go

Created May 28, 2014 15:42

	func Path(v interface{}, ks ...interface{}) (reflect.Value, error) {
	val := reflect.ValueOf(v)
	for i, k := range ks {
	switch key := k.(type) {
	case string: // struct field
	if val.Kind() != reflect.Struct {
	return reflect.ValueOf(nil), fmt.Errorf("Error at %v[%d]: must be struct", ks, i)
	}
	val = val.FieldByName(key)
	case reflect.Kind: // type

Arne Hormann arnehormann