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updated readme due to stackification

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#yammat
# yammat
Yet Another MateMAT
##Introduction
## Introduction
This project aims to be an implementation for a trust based POS for hackerspaces.
##Dependencies
## Installation
###External dependencies
### Dependencies
In order to build yammat you need the packages `cabal-install`, `ghc`, `libmagick++-dev` and `postgresql`. Furthermore you need the Haskell packages `alex` and `happy`. To install these enter `cabal install alex happy` into your command line.
#### Environment dependencies
###Internal dependencies
A working Haskell capable environment. For that you will need `haskell-stack`, which can be installed
with:
Before installing the internal dependencies it is best practice to put the project into a sandbox with `cabal sandbox init`.
```bash
sudo apt-get install haskell-stack
```
All internal dependencies are in the file `yammat.cabal` and will be installed automagically with the command `cabal install --only-dependencies`.
In case you can't find this package in your repositories, get `stack` from [stackage][stackage].
##Building
After you installed `stack`, let it make itself comfortable in your system with
To build this project enter `cabal configure && cabal build exe:yammat` into your command line
```bash
stack setup
```
##Deployment
This might, depending on your system setup, take some time. Brew yourself some tea.
Copy or link the executable `dist/build/yammat/yammat` to your desired run location alongside with the folders `static` and `config`. The Folders should be copied, or you will get problems with your git pulls.
#### Build dependencies
##Configuration
Now that your Haskell environment is set up, you need to install the dependencies for building and running yammat, which are:
Check the configuration File `config/settings.yml`. Create Postgresql Databases according to these settings.
* alex
* happy
* libpq-dev
* postgresql
##Lift-Off
Install all of them through your package management system.
Run `./yammat config/settings.yml` in your desired run location. Finally point a reverse-proxy (something like nginx) at `http://localhost:3000` or any other port you configured in `config/settings.yml`.
### Building
For better control You can wrap an init script around this. How to do this is described [in my blog][blog].
To build this project enter `stack build` into your command line.
Everything else should be done automagically.
[blog]: http://nek0.eu/posts/2014-10-23-Daemonize-a-yesod-app.html
This will take a long time, so go on a quest to find some cookies to go with the tea.
##Migrations
## Deployment
###0.0.0-0.0.1
Create a directory outside of the project directory, where you want to actually run the application.
Copy or link the executable `yammat` from `.stack-work/dist/<arch>/Cabal-<version>/build/eidolon/`,
where `<arch>` is your systems architecture and `<version>` the version of your `cabal` library,
to your desired run location alongside with the folders `static` and `config` and their contenst.
The Folders should be copied, or you will get problems with your git pulls.
* Delete column `alt_time` from table `avatar` in your Database with `alter table "avatar" drop column "alt_time";`
## Configuration
Let's leave the project directory and enter your desired run location.
Check the configuration File `config/settings.yml` and alter its content to your liking.
Most of these settings normally don't need to be altered much, except for `approot`.
Change this setting to the root address with which you want to connect to the application,
including the scheme (http or https).
Additionally edit the settings `email`, `currency` and `cash_charge`.
* `email` is the email address, which will receive notifications from yammat, should the stock run low.
* `currency` is your currency sign or shorthand, which will be used when displaying prices.
* `cash_charge` is the extra you want to charge your users, who pay cash.
* *Note:* The value of this setting is in hundredths of your currency denomination.
`cash_charge` is effectively a "guest tax". Setting it to `0` is perfectly fine, if you don't want that.
Create a Postgresql User and Database according to the settings in the settings file
and grant the user all privileges on the database.
## Lift-Off
Run `./yammat config/settings.yml` in your desired run location. Finally point a reverse-proxy
(something like nginx) at `http://localhost:3000` or any other port you configured in
`config/settings.yml`.
For better control You can wrap an systemd unit file around this.
How to do this is described [in my blog][blog].
## Migrations
### 0.0.0-0.0.1
* Delete column `alt_time` from table `avatar` in your Database with
`alter table "avatar" drop column "alt_time";`
* Start yammat normally to fill database with dummy data and stop it again
* Run migration script
* if you have built yammat with a sandbox, run `runghc -package-db/full/path/to/sandbox(XXX-ghc-version-packages.conf.d /path/to/yammat/Migration/0.0.0-0.0.1/Migration.hs`
* if you have built yammat with a sandbox, run
`runghc -package-db/full/path/to/sandbox(XXX-ghc-version-packages.conf.d
/path/to/yammat/Migration/0.0.0-0.0.1/Migration.hs`
* Note: No space between the option `-package-db` and its argument
* without sandbox: `runghc /path/to/yammat/Migration/0.0.0-0.0.1/Migration.hs`
* Enjoy your freshly migrated Matemat
[stackage]: http://www.stackage.org/
[blog]: https://nek0.eu/posts/2015-08-28-Daemonize-a-Yesod-application-systemd-style.html