102 lines
3.6 KiB
Markdown
102 lines
3.6 KiB
Markdown
# yammat
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Yet Another MateMAT
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## Introduction
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This project aims to be an implementation for a trust based POS for hackerspaces.
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## Installation
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### Dependencies
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#### Environment dependencies
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A working Haskell capable environment. For that you will need `haskell-stack`, which can be installed
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with:
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```bash
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sudo apt-get install haskell-stack
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```
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In case you can't find this package in your repositories, get `stack` from [stackage][stackage].
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After you installed `stack`, let it make itself comfortable in your system with
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```bash
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stack setup
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```
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This might, depending on your system setup, take some time. Brew yourself some tea.
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#### Build dependencies
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Now that your Haskell environment is set up, you need to install the dependencies for building and running yammat, which are:
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* alex
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* happy
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* libpq-dev
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* postgresql
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Install all of them through your package management system.
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### Building
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To build this project enter `stack build` into your command line.
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Everything else should be done automagically.
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This will take a long time, so go on a quest to find some cookies to go with the tea.
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## Deployment
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Create a directory outside of the project directory, where you want to actually run the application.
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Copy or link the executable `yammat` from `.stack-work/dist/<arch>/Cabal-<version>/build/eidolon/`,
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where `<arch>` is your systems architecture and `<version>` the version of your `cabal` library,
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to your desired run location alongside with the folders `static` and `config` and their contenst.
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The Folders should be copied, or you will get problems with your git pulls.
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## Configuration
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Let's leave the project directory and enter your desired run location.
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Check the configuration File `config/settings.yml` and alter its content to your liking.
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Most of these settings normally don't need to be altered much, except for `approot`.
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Change this setting to the root address with which you want to connect to the application,
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including the scheme (http or https).
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Additionally edit the settings `email`, `currency` and `cash_charge`.
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* `email` is the email address, which will receive notifications from yammat, should the stock run low.
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* `currency` is your currency sign or shorthand, which will be used when displaying prices.
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* `cash_charge` is the extra you want to charge your users, who pay cash.
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* *Note:* The value of this setting is in hundredths of your currency denomination.
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`cash_charge` is effectively a "guest tax". Setting it to `0` is perfectly fine, if you don't want that.
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Create a Postgresql User and Database according to the settings in the settings file
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and grant the user all privileges on the database.
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## Lift-Off
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Run `./yammat config/settings.yml` in your desired run location. Finally point a reverse-proxy
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(something like nginx) at `http://localhost:3000` or any other port you configured in
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`config/settings.yml`.
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For better control You can wrap an systemd unit file around this.
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How to do this is described [in my blog][blog].
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## Migrations
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### 0.0.0-0.0.1
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* Delete column `alt_time` from table `avatar` in your Database with
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`alter table "avatar" drop column "alt_time";`
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* Start yammat normally to fill database with dummy data and stop it again
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* Run migration script
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* if you have built yammat with a sandbox, run
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`runghc -package-db/full/path/to/sandbox(XXX-ghc-version-packages.conf.d
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/path/to/yammat/Migration/0.0.0-0.0.1/Migration.hs`
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* Note: No space between the option `-package-db` and its argument
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* without sandbox: `runghc /path/to/yammat/Migration/0.0.0-0.0.1/Migration.hs`
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* Enjoy your freshly migrated Matemat
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[stackage]: http://www.stackage.org/
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[blog]: https://nek0.eu/posts/2015-08-28-Daemonize-a-Yesod-application-systemd-style.html
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