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  • analytics
    • convert json perline to panads data frame
    • hierarchical data format
    • pandas format custom date in data frame
  • bash
    • bash forloop
    • parameter expansion
    • prompt confirmation in bash
  • db
    • disabling foreign key when importing dump
    • postgres add object to jsonb array from the same column
    • postgres audit log trigger
    • postgres naming trigger
    • postgres rename enum
    • postgres reset sequence after import
    • postgres skip table from restore
    • set a column with value from different table
  • dgraph
    • dgraph docker compose whitelist ip
  • docker
    • docker compose make sure postgres is ready before starting other service
  • fish
    • edit last command in editor
  • git
    • checkout last branch
    • different between two dots and three
    • force fail commit on master
    • git finish helper script delete current branch and update master
    • git mergetool and diff with p4merge
    • global gitignore file
    • intellij as diff and mergetool
    • push only current branch
    • reset email multiple commit
    • sign commit with pgp
    • worktree switching branch without stash
  • go
    • default math.rand.source is thread save while rand.new source is not
    • deploying go to a vpn ubuntu server with github and ssl
  • k8s
    • copy file to pod
    • getting cpu and memory usage for container
    • how cert manager and letsencrypt challenge works
    • kubernetes resource short name
    • scale deployment
    • view secret
  • linux
    • boot zfs root filesystem on grub
    • clearing up swap space
    • connect bluetooth device from cli
    • get full argument from a process
    • merge multiple pdf into a single file
    • removing old kernel
    • symbolic vs hard link
    • zfs auto snapshot
    • zfs external backup drive with snapshot and encryption
  • net
    • dnssec
    • html form submit to different action depending on properties
    • ldap list users
  • osx
    • checksum a file from a url
    • cluster ssh in iterm2 with i2cssh
    • list open port
    • manage clipboard easily with jumpcut
    • pipe output to clipboard with pbcopy and pbpaste
    • show hidden file
    • sign application with self certificate
    • starting program on startup with login items
  • python
    • count frequency with lambda
    • dijkstra algorithm shortest path
    • double slash arithmetic operator
    • min and max of dict values
    • python3 match case
    • reduce and opeator
  • react
    • react named export vs default export
    • react useeffect
    • react.useref
  • unix
    • bulk renaming multiple file
    • convert pdf to text using ocr
    • diff output of 2 command
    • encryption with gpg
    • extend letsencrypt certificate with dns challenge
    • ffmpeg monitor and restart stream when it hung or stall
    • file size older than x days
    • filtering json with jq
    • find lines that matches on 2 different sorted file
    • find out what is using swap
    • fish environment variables from 1password
    • fix gpg warning unsafe permissions on homedir
    • formatting or parse json in command line
    • get all line except n last one
    • grep print only matched
    • grep using input file as pattern to search other file
    • jq counting lenght of an array
    • jq extracting properties to arrays from json row line
    • keep n recent item in folder
    • open last command in the editor with fc
    • parsing epoch timestamp to date
    • pbcopy alternative for copying to clipboard
    • process pipe operator
    • record a web stream to youtube
    • regex for validating password
    • rename tmux window
    • repeat content of text x time
    • replacing last command and execute it
    • reusing last command argument
    • send slack message from command line
    • sending curl post with file
    • sort file inline
    • specify compression level in tar gzip
    • zsh ctrl p same behavior as up arrow
  • vim
    • paste yanked text on command buffer
  • web
    • this article is published to dev to with github action
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  1. git

force fail commit on master

Previousdifferent between two dots and threeNextgit finish helper script delete current branch and update master

Last updated 3 years ago

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Most of the time, you want to fail if you mistakenly commit to master. This is if you normally work with feature branch. This script can make git commit fail if the branch is master

add to .git/hooks/pre-commit

 current_branch=$(git symbolic-ref HEAD | sed -e 's,.*/\(.*\),\1,')
 if [ "$current_branch" == "master" ]
 then
   echo "Should not commit on master branch. Use 'git commit -n' to override"
   exit 1
 fi

or you can check out a framework to manage your git commit scripts

pre-commit