# Caps Lock as Escape on Ubuntu

The default UI lacks a convenient way to set this, but you can modify the following `dconf` setting:  

```
dconf read /org/gnome/desktop/input-sources/xkb-options
```

```
dconf write /org/gnome/desktop/input-sources/xkb-options "['compose:menu', 'caps:escape']"
```

See the [xkeyboard-config](https://www.mankier.com/7/xkeyboard-config) man page for more options.

----
# PyCharm for grognards

Initial setup:

* `charm` opening script: `~/.local/bin/charm` (manually expand `~` first)

Important shortcuts:

* https://www.jetbrains.com/pycharm/help/keyboard-shortcuts-you-cannot-miss.html
* Gnome keymap is probably better than the default X11, to reduce conflicts with the window manager.

Settings:

* Disable unused plugins, for simplicity.
* Editor → General → Other: Always write EOL, and strip spaces
* For Python projects: set virtualenv under "Project Interpreter"

To configure Vim or such as external editor, see [here](https://confluence.jetbrains.com/display/PYH/Using+Emacs+as+an+external+editor). PyCharm's line and column can be passed like `-c "call cursor($LineNumber$, $ColumnNumber$)"` (must be double-quotes; single-quotes don't work)

Example:

* Program: `gvim`
* Parameters: `-c "call cursor($LineNumber$, $ColumnNumber$)" $FilePathRelativeToSourcepath$`
* Working directory: `$SourcepathEntry$`


----
# SpatiaLite on Ubuntu

Django 1.9 docs: [Installing Spatialite](https://docs.djangoproject.com/en/1.9/ref/contrib/gis/install/spatialite/)

Spatialite packages:

* `spatialite-bin`

Header  packages:

* GEOS: `libgeos-dev` `libgeos++-dev`
* PROJ.4: `libproj-dev`
* GDAL: `libgdal-dev`

To initialise a SpatiaLite DB:

```
spatialite foo.sqlite3 "SELECT InitSpatialMetaData();"
```

(Since Django 1.8, `django-admin` will do this automatically.)

----
# Building Pillow on Ubuntu 15.10

Upstream docs: [Building on Linux](https://pillow.readthedocs.org/en/latest/installation.html#building-on-linux)

You'll need these header packages, depending on what features you want:

* ZLIB (PNG/ZIP): `zlib1g-dev`
* JPEG: `libjpeg-dev`
* WEBP / WEBPMUX: `libwebp-dev`
* LITTLECMS2: `liblcms2-dev`
* FREETYPE2: `libfreetype6-dev`
* LIBTIFF: `libtiff5-dev`
* OPENJPEG (JPEG2000): `libopenjpeg-dev`


----
# npm

npm defaults to putting stuff in slightly silly places (see [npm-folders](https://docs.npmjs.com/files/folders)).

To save more reasonable paths in `~/.npmrc`:

```
npm config set prefix ~/.local
npm config set cache ~/.cache/npm
```

This makes `npm install -g` user-local, and keeps its cache in the default XDG cache directory.