Bill Howe wdhowe

Clojurescript Hello World

A hello world with Clojurescript+shadow-cljs+reagent.

shadow-cljs: A developer tool that provides development builds, hot loading dev web server, and more.
reagent: An interface to react. Create complicated react components with less verbosity and using mostly just Clojurescript functions.

Pre-reqs

Git: Pull Request CLI

Some github cli example commands to open pull requests.

Remove --dry-run to create.

With a Template

Opens a pull reqest to merge SOURCEBRANCH into DESTBRANCH, using a markdown formatted template for the body.

Git: Checkout a single directory from a git repo

Setup Directory

mkdir myrepo && cd myrepo
git init

Configure Repo

Git: Move files and history from oldrepo to newrepo

Example commands show moving the "data" directory from oldrepo to newrepo and includes all history.

oldrepo (the source)

Clone a fresh copy of oldrepo.

git clone [email protected]:USERHERE/oldrepo.git

Analyze Clojure Docs Locally

Analyzing your project via the cljdoc-analyzer locally will ensure that when your project is pushed to clojars, the API docs will have a much better chance of successfully generating.

Install the cljdoc-analyzer.

clojure -Ttools install io.github.cljdoc/cljdoc-analyzer '{:git/tag "RELEASE"}' :as cljdoc

Extend your GPG key expiry

Find the ID of the expiring key. Note your key ID.
```
gpg --list-secret-keys
```
Start editing the key.

Git Commands Cheat Sheet

Configuration

List Current Global Settings

git config --global --list

	DO $$
	DECLARE
	i TEXT;
	BEGIN
	FOR i IN (
	SELECT 'SELECT SETVAL('
	\|\| quote_literal(quote_ident(PGT.schemaname) \|\| '.' \|\| quote_ident(S.relname))
	\|\| ', COALESCE(MAX(' \|\|quote_ident(C.attname)\|\| '), 1) ) FROM '
	\|\| quote_ident(PGT.schemaname)\|\| '.'\|\|quote_ident(T.relname)\|\| ';'
	FROM pg_class AS S,

	-- List all sequences and their current values, excluding system schemas
	SELECT
	n.nspname as schema,
	s.relname as sequence_name,
	t.relname as table_name,
	a.attname as column_name,
	pg_sequence_last_value(s.oid) as last_value
	FROM pg_class s
	JOIN pg_namespace n ON n.oid = s.relnamespace
	JOIN pg_depend d ON d.objid = s.oid

	parse_git_branch() {
	git branch 2> /dev/null \| sed -e '/^[^]/d' -e 's/ \(.*\)/(\1)/'
	}

	# color prompt example: "user@host:~/path(git-branch)$"
	PS1='\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\[\e[91m\]$(parse_git_branch)\[\e[00m\]\$'