SQL Aide (SQLa) Typescript template literals optimized for emitting SQL

SQL Aide (SQLa) is a suite of Deno TypeScript modules which use the power of JavaScript functions and Template literals (Template strings) to prepare SQL components as composable building blocks ("SQL partials"). SQLa is like a static site generator but instead of generating HTML, it generates SQL files and other database artifacts for SQL-heavy apps and services.

SQLa targets services or applications that must assemble and load SQL into in a deterministically reproducible manner. SQLa is an aide which helps prepare, organize, assemble, load, and revision manage type-safe, deterministically reproducible, SQL code.

Instead of inventing yet another template language, SQLa uses a set of naming conventions plus the full power of JavaScript (and TypeScript) template strings to prepare the final SQL that will be assembled and loaded into (mostly) relational databases.

Init after clone

This repo uses git hooks for maintenance, after cloning the repo in your sandbox please do the following:

deno task init

Check for missing deps

deno task doctor

You should see something like this:

Git dependencies
  🆗 .githooks/pre-commit
  🆗 .githooks/pre-push
  🆗 .githooks/prepare-commit-msg
Runtime dependencies
  🆗 deno 1.34.0 (release, x86_64-unknown-linux-gnu)
Build dependencies
  🆗 dot - graphviz version 2.43.0 (0)
  🆗 java 17 2021-09-14 LTS
  🆗 PlantUML version 1.2022.6 (Tue Jun 21 13:34:49 EDT 2022)

Doctor task legend:

• 🚫 is used to indicate a warning or error and should be corrected
• 💡 is used to indicate an (optional) suggestion
• 🆗 is used to indicate success

If you get any error messages for dot, Java, or PlantUML then you will not get auto-generated entity relationship diagrams (ERDs).

Maintain Deno dependencies

You can check which deps need to be updated:

find . -name 'deps*.ts' -type f -not -path "./support/*" -exec udd --dry-run {} \;   # check first
find . -name 'deps*.ts' -type f -not -path "./support/*" -exec udd {} \;             # update deps

Documentation

SQLa documentation is available at https://netspective-labs.github.io/sql-aide/.

Local Documentation Server

If you're modifying the documenation or would like to use it locally without Internet access, start the server and launch the site:

cd support/docs-nextra
pnpm install    # first time or whenever you do a pull
pnpm next       # docs are available at http://localhost:3000

We use Nextra as document publishing framework.

Unit Testing

deno test

Tagging and pushing commits

When you're ready to push code:

deno task git-hook-pre-commit   # run all tests/validation that will be run by Git commit hook so there are no surprises
git commit -m ...               # commit your if the above shows no errors
deno task prepare-publish       # bump the version tag and prepare for push
git push                        # push the code with the bumped version

Visualizing Entity-Relationship Diagrams (ERDs) using PlantUML in VS Code

To preview *.puml PlantUML-based Information Engineering (IE) ERDs in VS Code, you'll need to:

• Install the PlantUML VS Code (jebbs.plantuml) extension
• Install Graphviz dot executable
• Install Java JRE

To setup Graphviz on a Debian-based distro:

sudo apt-get update && sudo apt-get install graphviz

To install Java (you can use any version, below are just examples):

asdf plugin add java
asdf install java oracle-17
asdf global java oracle-17
whereis java

Add the following to your bash_profile and restart VS Code so that it will pick up the location of Java and any other ASDF-based executables:

export PATH=$PATH:$HOME/.asdf/shims

NPM Packaging

We are experimenting with taking the Deno code and producing NPM packages. This doesnt work for the pattern or examples directories but the core SQLa render package should work.

Build the NPM package

deno task prepare-npm

Publish the NPM package

deno task publish-npm

To publish this package, you will need the necessary permissions. Please contact the netspective-labs organization to obtain the required permissions if you don't have them yet.