115 lines
3.6 KiB
Markdown
Executable file
115 lines
3.6 KiB
Markdown
Executable file
#eidolon
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##Introduction
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A image gallery service written in Haskell as a yesod webapp.
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Visit the test instance at [eidolon.nek0.eu][eidolon]
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##Installation
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###Dependencies
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A working Haskell capable environment. For that you will need `haskell-stack` and `cabal-install`, which you can install with:
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```bash
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sudo apt-get install haskell-stack cabal-install
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```
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Shouldn't stack be available through your package repositories you can get it [here][stack].
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Now you can set up your stack with `stack setup` and follow its instructions. This will install the latest GHC Haskell compiler on your system.
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update your package list with
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```bash
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cabal update
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```
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and upgrade `cabal-install`, if necessary with the command
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```bash
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cabal install cabal-install
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```
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Now you should add `~/.cabal/bin` to your `PATH` environment variable.
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Additionally to Haskell and its dependencies you will need the following software and libraries:
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* alex
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* happy
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* libmagick++-dev
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which can be installed through
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```bash
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cabal install alex happy
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sudo apt-get install libmagick++-dev
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```
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###Building
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get the source with
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```bash
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git clone https://github.com/nek0/eidolon.git
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```
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It's generally a good idea to create a sandbox for compiling. To do so `cd` into the project directory and invoke
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```bash
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cabal sandbox init
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```
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If the sandbox generation fails, please make sure, you are using the latest version of `cabal istall`.
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Then install all dependencies with the following command. This may lead you into dependency hell, as I am working with very new libraries. I am trying my best to avoid this.
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```bash
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cabal install --only-dependencies
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```
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After installing all dependencies you can configure and build the software with
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```bash
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cabal configure
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cabal build
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```
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##Deploying
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After compiling you will find an executable called `eidolon` in `dist/build/eidolon/`. Copy or link it anywhere you want. The executable needs to be accompanied by the folders `config` and `static` and their contents. It's best to copy them to your desired destination.
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Also check `config/settings.yml` and set the values there accrding to your configuration.
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It may also be necessery to create a reverse proxy to your gallery. I would recommend using [nginx](http://nginx.org/).
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##Customizing
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Unfortunately the gallery is not highly customizable, but you can change most of its appearance by changing the files `static/css/static-*.css`. Especially the default background image can be changed by replacing `static/css/img/bg.jpg`.
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##Starting
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You can start the gallery now by running the executable. You need to provide a settings file, normally found in `config/settings.yml`
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Since eidolon will block your console, I recommend wrapping a init-script around it. how you can do that is written in my [blog](http://nek0.eu/posts/2014-10-23-Daemonize-a-yesod-app.html).
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##Migrations
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###0.0.3-0.0.4
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* do not start or restart your eidolon service before migration
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* run migration script from your run location (where your `static` folder with all the images is located)
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* if you are building in a sandbox run `runghc -package-db/full/path/to/sandbox/XXX-ghc-version-packages.conf.d /path/to/eidolon/Migrations/0.0.3-0.0.4/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/eidolon/Migrations/0.0.3-0.0.4/Migration.hs`
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* start or restart your eidolon service
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##Acknowledgements:
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* This software uses the web Framework "Yesod" by Michael Snoyman. See more at: <http://www.yesodweb.com/>
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* This software uses parts of the template "Parallelism" by n33co. see more at: <http://html5up.net/>
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[eidolon]: http://eidolon.nek0.eu
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[stack]: https://github.com/commercialhaskell/stack/releases
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