I've recently rebuilt an old laptop to use Fedora 24, installing the MATE desktop rather than using GNOME 3 (I really can't get to grips with it, and want my desktop to look like Windows circa 1996).
This all works really nicely, but Pluma, the default text editor in MATE, insists on showing you the most-recently used files in its file chooser. It took me ages to figure out how to fix this, so I'm posting it here now I've worked it out, for future reference.
Change the settings for the file chooser to open at the user's current working directory by running this on the command line:
dconf write /org/gtk/settings/file-chooser/startup-mode \"cwd\"
If you want to permanently disable recent files altogether, edit (or create) the file
~/.config/gtk-3.0/settings.ini with this content:
I've finally given up on the idea of making my blog a "social" site, and have turned off comments. The amount of spam I was getting on every article was absolutely ridiculous and took about 2 hours to clean up every time I got round to doing it.
I've now cleaned up all the spam (apologies if I removed any legitimate comments that anyone actually cared about). From now on will be turning off comments for every blog post and article (not many, given that I rarely update my blog these days).
Anyone who really want to get in touch with me can track me down via @townxelliot on Twitter.
I read 19 books in 2015:
I read 67 books in 2014:
I read 36 books in 2013. Here's the list:
I had a Galaxy S2 for a couple of years, which was a brilliant phone. It's Android, so you are spoilt for choice as far as apps go: my main use of the device was for multimedia, watching Netflix, iPlayer, stuff on my NAS drive (via BubbleUPnp, the best Android UPnP client, by the way), Sky Go (it's one of a handful of compatible devices), listening to music and radio shows. Using the excellent SwiftKey virtual keyboard, typing was fast and easy, so I also used it for personal email, Twitter, Facebook etc. The camera was great; so good that I'd stopped using our digital camera in favour of the S2.
But problems started a few months back. The microSD card somehow got corrupted, so I lost a load of photos. The USB port (or the system's detection of it) got flaky, so sometimes it continued to behave as if it was charging, even when unplugged. I couldn't reliably connect the USB to download files from it. I couldn't update the operating system, so more and more apps were becoming incompatible.
Eventually I realised I was going to need a new phone, contract-free (I use giffgaff). Because I like a challenge, and I work in open source, and some of my friends and old colleagues work on it, and because it uses HTML5 for its whole UI, I went for a SIM-free ZTE Open running Firefox OS (£60 on eBay).
On paper, Firefox OS sounds like a great concept: fully open source, most of the userland apps in HTML5, extensive web APIs for third party developers to interact with system services. However, my disappointment on first trying the phone was almost palpable. In fact, my first impressions were so very bad that I contemplated selling it on eBay within about an hour of unwrapping it. I was going to write a thorough review explaining why, but then this Phones Show video summed it up. As a phone, this device is barely adequate, for all the reasons explained there. I'll summarise the salient points:
Within a few days of purchasing it, I realised it just wasn't going to do for general day-to-day use. I actually forked out for a very cheap (£50) Android (Jelly Bean) tablet from Amazon (I think I should have spent a bit more money, as the web browsing on it is a bit crap, but games and multimedia work fine; the screen is only adequate; and the system clock drifts incessantly, which is irritating).
Having said all this, the good points of the ZTE Open are:
It's also worth bearing in mind the context for the device. It's not a "first world smart phone", more a "developing markets first smart phone". In that context, it's great. I imagine even having internet access on a phone would be a massive boon in some countries (I remember how exciting it was when I got my first hand-me-down HTC phone a few years ago). Data usage monitoring is key in countries where phone companies are still developing infrastructure, and contracts are likely to be capped.
And, this isn't the end of the story from my point of view. Once I got over the initial disappointment of how incomplete, inadequate and substandard this device is as a phone, and ordered an Android tablet to take up the slack, the "pressure" was off the ZTE Open. I could lower my expectations because I didn't need it to be anything more than a phone. Any functionality on top of that was a bonus. With this new (more realistic) perspective, I could more easily see the possibilities. Here was a phone which I could develop apps for, using my existing skills and toolchain, without having to run cumbersome SDKs and emulators (I have tried Android development in the past, but it's not really my thing).
Recently, I've been downloading radio shows and podcasts, and listening to them while walking around, after dropping the kids off at school, picking them up, shopping etc. Firefox OS has a music player, which is OK though basic. But this app, like most other music apps, is focused on playing music: generally short pieces of audio that you might listen to in one sitting, from start to finish. By contrast, listening to radio shows is more like watching a film on Netflix or reading a book on a Kindle: you might listen to the first half hour, then switch it off, then go back to it later.
Most music apps don't cope with this use case, where you "pick up" an audio file for a while then set it down, so you can come back later. The main feature you need for this is to track progress through an audio file and persist it, so a user can return to the same point they reached earlier. (The way Netflix and Kindle do for movies and books respectively.) On top of this, I also wanted a music player that showed me the full title and album for a track without truncating it or scrolling it leisurely into view; group by album as the default (as the album for a podcast or radio series tends to be the important thing, rather than the artist). Other desirables features: a slider for scrubbing through a track, while being able to see where you are in it (the Firefox OS Music app isn't great for this); and skip buttons to jump over chunks at the start of an audio file (where they tend to put introductions and adverts). I also wanted standard music app features, like being able to quickly go back to the last thing I listened to. And I didn't want loads of other features that I rarely use or care about, like playlists and album cover art.
I started a project called Marconi, an audio player focused on audio rather than music. My first step was ripping some code out of the Firefox OS Music app for decoding the ID3 tags out of mp3 files (the beauty of open source, though it would be nice if audio tag reading was a service...). I then wrote a wrapper round the Firefox OS deviceStorage API, so I could read audio files from the phone's hard drive and get their metadata. Initially, I just had a very simple list view of the files as an HTML file.
Next, for testing, I installed and setup adb (Android Debug Bridge) and the Firefox OS simulator (as documented on the Mozilla developer network). Shortly, I got Marconi running in the simulator (once I'd recognised this bug was holding me up).
After that, it took me a while to figure out the steps I needed to be able to push stuff to the phone. For those of you who might be similarly struggling (it was the main barrier for me), on Fedora Linux the steps are:
sudo udevadm control --reload-rules. It all gets a bit vague here, but I just checked and this seems to work.
adb devicesand ensure you see a line like "roamer2 device". If you get "Insufficient permissions", restart adb with your fingers crossed and/or a prayer on your lips and try again.
One other thing which wasn't very clear from the docs: you will need a manifest file, called something like manifest.webapp (the .webapp is important) to be able to load your app into the simulator. It's explained in detail on the Mozilla developer site.
I continued developing the app, which uses Bootstrap 3 for most of the UI (I'm not 100% sold on it, but it's quite lightweight and looks pretty good), jQuery UI for the slider (it's the best HTML5 slider in my opinion), some media player code I wrote on a previous project (which wraps HTML5 <audio>), localStorage to persist progress data, and Stapes for event handling and the model layer. There are a couple of screenshots below.
Notes: the screen on the left is scrolled up a bit so you can see the progress bars for two files; the buttons are positioned so I can reach them with a thumb when holding the phone with one hand; the slider updates the progress text at the top as you slide, and you can slide it to reach right to the start or end of a track - difficult to do precisely with the default Firefox OS Music app; progress bars on the home screen update in real time as you're listening to a track; the top-right notes button takes you back to the "last played"/"currently playing" track.
Finally, after quite a bit of work, I have an app which does what I want, for now. It won't scale to thousands of files, only copes with mp3s, doesn't do playlists or album art; but it is optimised for me: it remembers what I listened to last, it tracks my progress through audio files, it shows me full album and track titles, and it has BIG UI elements and fonts which I can easily see and press while I'm walking around. Yes, it's fairly ugly, the proportions are all wrong, it's not perfect by any means, but it suits me very nicely.
The moral of this story is that while Firefox OS is terrible as a end-user phone in 2013 (well, about as good as the phone I had 10 years ago), it is great as a platform for experimenting with HTML5 web apps in a real mobile environment. I don't think of my ZTE Open as a phone so much; more as a custom media player which I wrote myself, with the phone functionality as a bonus. Which is a rewarding feeling to have.
I noticed a friend of mine tweet about
git commit --amend yesterday, and it occurred to me that some people probably haven't used git very much and are still learning the ins and outs. I thought I'd share some commands I find really useful.
The first thing to mention is that you can set up your own command aliases by editing a file called .gitconfig in your home directory. This is where I keep all my custom aliases. (I use them so often that I'm often lost when using git on a different system where my aliases aren't set up.) Here's an extract from my .gitconfig with some explanation of the aliases:
[user] # sets up your details so that commits carry the right user info; # I use my primary github email address for mail, so that # all my github commits are associated with the right account mail = <you primary github email address> name = <your real name> [smtp] [sendemail] [color] # turns on the default terminal colouring for git output ui = auto [alias] # A good resource on git aliases is https://git.wiki.kernel.org/index.php/Aliases # these are just shortcuts to full git commands st = status ci = commit br = branch co = checkout cp = cherry-pick # I use this one when I am working locally, miss some changes, then want to # add them onto the last commit I made; it stages all the files which have # changed (NB NOT new files or deleted files), merges those changes to HEAD, # and retains any existing comment from HEAD cim = commit -a --amend -C HEAD --reset-author # this is similar to the cim command, but instead of automatically adding any # changed files, it only merges staged files into the HEAD commit; this is useful # where you just want to add one or two files you've changed to the existing # HEAD commit, before making a new commit with the other changes fix = commit --amend -C HEAD # sl: short log showing author and changed files; useful for checking # what I've patched in each commit sl = log --format=format:'%h %s%n%an, %ar (%ai)' --name-status # author: Show all the commits a specified author has done # Usage: git author <email_address|name> author = "!sh -c 'git log --tags --source --oneline --author=\"$1\"' -" [merge] tool = meld keepBackup = false [push] default = current
Note that I have others, but these are the ones I use most often.
Next, to give a flavour of how you might use them, here's an example session making use of these commands.
First I init a git repo and add a README file:
[ell@lp shiny]$ git init . Initialized empty Git repository in /tmp/shiny/.git/ [ell@lp shiny]$ vim README [ell@lp shiny]$ git st # On branch master # # Initial commit # # Untracked files: # (use "git add <file>..." to include in what will be committed) # # README nothing added to commit but untracked files present (use "git add" to track) [ell@lp shiny]$ git add README [ell@lp shiny]$ git ci -m "Add README" [master (root-commit) a2584b9] Add README 1 file changed, 1 insertion(+) create mode 100644 README
Now I edit the README, but want to merge those changes into the existing commit. So I use my
[ell@lp shiny]$ vim README [ell@lp shiny]$ git cim [master f4be9e7] Add README 1 file changed, 3 insertions(+) create mode 100644 README
This adds my changes to the existing commit, keeping the commit message I've already laboriously typed in.
Now I show a short log of what's happened so far. I prefer this log format as it shows just the changes files, a short form of the git commit idedntifier, the author, and the comment:
[ell@lp shiny]$ git sl f4be9e7 Add README Elliot Smith, 2 seconds ago (2013-07-18 10:35:12 +0100) A README
Now I add a new file, package.json, then make an edit to README:
[ell@lp shiny]$ vim package.json [ell@lp shiny]$ vim README [ell@lp shiny]$ git st # On branch master # Changes not staged for commit: # (use "git add <file>..." to update what will be committed) # (use "git checkout -- <file>..." to discard changes in working directory) # # modified: README # # Untracked files: # (use "git add <file>..." to include in what will be committed) # # package.json no changes added to commit (use "git add" and/or "git commit -a")
I want to include my edit to README with the existing commit, then add a new commit for package.json. So I first stage the changes to README and use my
fix command to merge them into the existing HEAD:
[ell@lp shiny]$ git add README [ell@lp shiny]$ git fix [master 71de8f9] Add README 1 file changed, 5 insertions(+) create mode 100644 README [ell@lp shiny]$ git sl 71de8f9 Add README Elliot Smith, 32 seconds ago (2013-07-18 10:35:12 +0100) A README
Then I stage the changes to package.json and make a new commit for them:
[ell@lp shiny]$ git add package.json [ell@lp shiny]$ git ci -m "Add package JSON" [master b717cc8] Add package JSON 1 file changed, 1 insertion(+) create mode 100644 package.json [ell@lp shiny]$ git sl b717cc8 Add package JSON Elliot Smith, 2 seconds ago (2013-07-18 10:35:52 +0100) A package.json 71de8f9 Add README Elliot Smith, 42 seconds ago (2013-07-18 10:35:12 +0100) A README [ell@lp shiny]$
Notice that I almost automatically do
git sl after each cim/fix/commit command, as it's so quick and easy to read the output.
Anyway, I might write some more if I feel so inclined another day. I make extensive use of interactive rebasing, for example, which is never really explained anywhere in simple terms, but which is massively useful (especially if you're making branches to turn into pull requests for other projects).
git can be a bit daunting at first, but after you've used it for a while I don't think you'd use any other version control system ever again, unless forced to.
I wrote some grunt plugins for managing Tizen application development and doing related stuff:
They are all available from github at the links above, or can be installed via npm (instructions in the READMEs).
They are all released under the Apache v2 license.
One aim was to get these applications to run on Tizen devices, partly as they are included as samples in the Tizen SDK. My colleagues have done some good work on the SDK, but, unfortunately, it doesn't yet support the Linux distribution I use (Fedora, currently version 17). So I had a requirement to install web apps on Tizen, but without the possibility of using the SDK.
Fortunately, one of the key tools for interacting with a Tizen device is sdb (Smart Development Bridge), which is a fork of the Android adb tool. It works over a network connection between the device and a developer machine, usually over a USB cable, enabling file transfer between the two and access to a shell on the device. sdb is very easy to build on Linux, so it wasn't long before I had a way to push web app packages to my device, get a command line on the same device, then use the Tizen package tools (wrt-installer and pkgcmd) to install the package, then running it in debug mode and remotely debugging it (via wrt-launcher).
As with all these things, I soon got bored with entering the same commands over and over, so I wrote some bash scripts to automate pushing the package, starting the shell, executing the command, and opening a debug session. One of my colleagues started using the same scripts, so I made them more portable and robust.
The result is the three plugins mentioned at the start of this post. They've been tested on Fedora Linux and Windows 7, and are hopefully fairly easy to use (I spent quite a bit of time on documentation).
Please try them, and, if you're so inclined, contribute via github (pull requests and issues).
The hits just keep on coming!
Here's my other annual taste-making, floor-shaking list of stuff: top tracks 2012! The rules are: no artist more than once, and each track listed was listened to at least 5 times. They are listed in order of number of listens, so Her Fantasy was my most-listened to track in 2012.
You could look at my 2012 Jam Odyssey for a more interactive overview of what I was listening to.
Here's the list:
I bet you were all thinking, just after Christmas: "Where oh where is the list of books Elliot read in 2012? It really brightens up the festive season."
Well, worry no more! Here it is, finally:
Of those, I love the Jane Gaskell books, always like Barry Malzberg, really enjoyed The Possessors, Moorcock is always great, love Jack Vance, and Dandelion Wine had the best opening sequence. Lilith and The Wood Beyond the World were really heavy going.
Only 40 books. After going into hospital last September, I found it really difficult to read anything for some reason. I still haven't quite recovered my enthusiasm for books (I've only read 3 so far this year).