Commit graph

1046 commits

Author SHA1 Message Date
William Carroll
1f19080c7c Prefer alias to abbr
After working with fish for a few weeks, I've decided that I prefer aliases to
abbreviations.

Why? When I reverse search through my command history, I search for the
what I typed and not what it expanded to. Some of my aliases wrap existing
tools encoding my preference for tool A if tool B isn't available. For example I
alias vim to neovim. When nvim isn't available on $PATH, typing vim will
expand to nvim, which will in turn fail.
2020-02-12 18:08:31 +00:00
William Carroll
1a484b4b91 Disable auto pairing parens, brackets, quotes
I don't see much value in this tool for my workflow.
2020-02-12 18:07:31 +00:00
William Carroll
072be0befd Nixify simple_vim idea
I previously had an alias defined as `simple_vim`, which would start an instance
of Vim with a bare bones config. I had a to-do to Nixify it. That is
now (mostly) to-done.

When I try and install it with `nix-env -f ~/briefcase -iA tools.simple_vim`,
Nix fails and says that pkgs.stdenv is undefined. I will need to fix this one
day, but it is neither important nor urgent...
2020-02-12 18:05:32 +00:00
William Carroll
fc8283ff6e Define briefcase alias to cd into my monorepo
Defining an alias in my config.fish makes me realize that I should prune many of
my abbreviations and change the ones that remain into aliases.
2020-02-12 17:01:12 +00:00
William Carroll
fabf1c9334 Tidy up structure of briefcase
I had a spare fifteen minutes and decided that I should tidy up my
monorepo. The work of tidying up is not finished; this is a small step in the
right direction.

TL;DR
- Created a tools directory
- Created a scratch directory (see README.md for more information)
- Added README.md to third_party
- Renamed delete_dotfile_symlinks -> symlinkManager
- Packaged symlinkManager as an executable symlink-mgr using buildGo
2020-02-12 16:58:29 +00:00
William Carroll
5ec5a6da8c Complete InterviewCake reverse-string-in-place
Wrote a function in TypeScript to reverse an array of characters mutatively.
2020-02-12 15:53:21 +00:00
William Carroll
e1427dd8b1 Move matrix-traversals -> ./misc
I'd like the top-level files in deepmind/part_two to correspond 1:1 with the
TODOs in my org file tracking the work.
2020-02-11 17:11:24 +00:00
William Carroll
85cdd46f00 Attempt to support TypeScript for coding challenges
I was a bit weaker than I expected to be in my most recent interview using
TypeScript. To improve, I think I'd like to attempt solving some of the
InterviewCake.com questions using TypeScript.

If you've read the previous commits, the inspiration for `run` arose because I
need to call `npx ts-code <file>`, which is easy enough to remember, but I'd
still rather just call `run <file>`.
2020-02-11 17:11:19 +00:00
William Carroll
3afb56a5e5 Begin supporting run
I'd like to be able to just call `run file.py` and have a program DWIM. I'm
working on run as a step in this direction. Define a simple configuration that
maps file extensions to template strings where "$file" is replaced with the
argv[1].

It basically works but there are outstanding TODOs. See the README and source
code for more information.
2020-02-11 17:11:19 +00:00
William Carroll
a50153c141 Support utils.Resolve/2
Supporting a function that resolves a file name checking for the nearest
occurrence of the file from the CWD until it traverses beyond the user's home
directory, after which point it checks in backupPaths.
2020-02-11 17:11:19 +00:00
William Carroll
b3b343ebf9 Support utils.FileExists/1
Support predicate for checking if a file exists on disk.
2020-02-11 17:11:19 +00:00
William Carroll
3ae3b6f039 Support utils.HomeDir/0
Support function for returning the home directory of the current user.
2020-02-11 17:11:19 +00:00
William Carroll
825d6f2c65 Encode InterviewCake.com questions as an org-mode list
This way I can track what I've done and what I need to do.
2020-02-11 17:11:19 +00:00
William Carroll
d81f31107d Support cycling through display configurations
Today when I opened my laptop, I wasn't sure if it was powered off or on because
the display was blank. Thankfully the volume was muted and the LED indicator was
on, which informed me that the laptop was powered on. This saved me from
unnecessarily rebooting.

What happened was that last night I was working from home and using my external
monitor. Usually I enable my external display and disable my laptop display. But
when I left for work this morning, I unplugged the HDMI cable from my laptop
without disabling the external display or enabling the laptop display.

I noticed a XF86 button on my laptop entitled XF86Display. I figured that this
could be a nice place to bind a key to toggle my laptop display on or off. At
the last minute, I had the idea to just cycle through all possible display
configurations that I use; there are only three anyways. When dealing with more
than two states, I realized I should use a cycle to model the configuration
states. Now I'm thinking that I should be using cycles to model toggles as well
- instead of just using a top-level variable that I `setq` over. I haven't
refactored existing toggles to be cycles, but I am excited about this new
keybinding.

This commit additionally:
- Moves keybindings out of display.el and into keybindings.el
- Conditionally sets KBDs if using work laptop
2020-02-11 13:56:10 +00:00
William Carroll
61be808a92 Preferring to start wpcarros-emacs with dbus-launch
When I ran `pass show some/password`, gpg, which uses pinentry would start its
ncurses password prompt. For many this wouldn't be a problem but my current
vterm version cannot send the <return> key to ncurses, so once that prompt
appears, I cannot get rid of it without C-c and killing the shell. For a day or
more I just opened suffered through this.

Today I dug more into the issue and when I ran `pinentry --version` it warned
that it couldn't connect to DBUS. After searching for more information on this,
people with similar issues recommended starting their window managers with
`dbus-launch`. I previously started Emacs with `dbus-launch`, but only because
some i3 documentation told me to do so and I just copied them. Then I switched
to EXWM and copied that pattern over. A friend of mine uses EXWM and starts his
without calling `dbus-launch` but `exec emacs`. I mirrored this thinking that I
no longer needed `dbus-launch`. What I didn't know, however, was that this
friend was using a Nix-built Emacs (like me) except that his wrapped a native
Emacs installation while mine doesn't. His natively wrapped Emacs installation
has the proper variables set to interact with dbus and other important Linuxy
things that I don't fully understand. Since I'm using a Nix-built Emacs, some of
my variables are unset or set to different values than programs expect. This is
why when I try and start `gnome-terminal` or `terminator`, they refuse to start
and warn about many unset or incorrectly variables and not being able to bind to
sockets, etc.

This change reverts back to using `dbus-launch` until I have a better
understanding of Linux, Nix, etc.
2020-02-10 23:24:38 +00:00
William Carroll
e223adfec5 Begin work on YNAB client
After reading these docs
https://api.youneedabudget.com/v1#/Transactions/createTransaction I successfully
made a request to post a transaction to my YNAB account. Hastily created a
client.go that doesn't contain much at the moment.
2020-02-10 23:24:33 +00:00
William Carroll
2e719d1174 Sort items in travel_hitlist
Grouping entries by country and sorting according to Done -> Todo.

I should consider sorting the country groups alphabetically by the country name
and then each entry alphabetically by its city name.

Right now, however, this isn't a priority.
2020-02-10 11:57:18 +00:00
William Carroll
b8700d4fce Add Turkish cities to wish list
I would like to see Istanbul and Ankara one day.
2020-02-10 11:56:57 +00:00
William Carroll
d6fcbb2d85 Add Grenoble and Lyons
In 2013, I lived in Grenoble with a host family. During that time, I visited
Lyons, as well as a few other locations that aren't tracked by this document at
the time of this writing.
2020-02-10 11:56:07 +00:00
William Carroll
29a0af7fef Lint the document
Removing a trailing comma from Dubrovnik, Croatia.
2020-02-10 11:55:24 +00:00
William Carroll
20e2624203 Adding a few cities that I visited in 2019
I spent two weeks on the Spanish islands of Ibiza and Formentera over the
summer.

I went to Hamburg twice to visit Mimi's family - once in the summer; once for
Christmas.

In the Fall, I went to Bordeaux with Mimi where we stayed at a charming Airbnb.

I spent New Years Eve in Amsterdam with Matty, Ryan, and Conor.

I may be missing a few other places that I visited in 2019; it was an active
year.
2020-02-10 11:55:14 +00:00
William Carroll
7333dfe47b Add 'travel_hitlist/' from commit 'a97002bb21425c4d36335e9d70a1ec8bad6b51f2'
git-subtree-dir: travel_hitlist
git-subtree-mainline: 3fa8276816
git-subtree-split: a97002bb21
2020-02-10 11:45:29 +00:00
William Carroll
3fa8276816 Support C-k for upward movement in ivy-switch-buffer-map
Without these KBDs, C-k kills buffers. As an evil-mode user, I expect C-k to
move upwards. As such, adding the `ivy-switch-buffer-map` to my existing ivy
KBDs that handle a similar use-case.

Note: I'm unsure why the KBDs in evil-collection didn't cover this.
2020-02-10 11:36:09 +00:00
William Carroll
52831c7136 Disable ido-mode
For awhile I had a mixture of ivy and ido. Disabling ido and preferring ivy for
everything.
2020-02-10 11:35:27 +00:00
William Carroll
9dd9bce494 Add ts.el to emacs/default.nix
I ran `M-x package-autoremove` that deleted `ts.el`, which wasn't listed in my
default.nix. Adding it...
2020-02-10 11:34:19 +00:00
William Carroll
bd88f40224 Refactor token server initialization
- Move state "gen server" to the top of main/0
- Initialize it as empty
- Ensure that persistTokens/2 is called whenever the state changes
- Support setState/2 (similar in spirit to getState/0)
2020-02-10 10:06:40 +00:00
William Carroll
d35eb5c8f9 Debug os.Signal handling
Problem:

When SIGINT signals we're sent to the token server, it would shut down without
completing the shutdown procedure. The shutdown procedure would persist the
application state (i.e. access and refresh tokens).

This is problematic for the following sequence of events:
t0. Access and refresh tokens retrieved from kv.json and used as app state.
t1. Tokens are refreshed but not persisted. (I'm still unsure how this
    happens). Remember that this means the previous access and refresh tokens
    from t0 are now invalid.
t2. User sends a SIGINT.
t3. Token server shuts down.
t4. Token server is restarted, kv.json is used as the app state even though its
    tokens are now invalid.
t5. Tokens are attempted to refresh, Monzo API rejects the tokens because
    they're invalid.

Now we need to provide the token server with valid access and refresh tokens
otherwise we will repeat the loop described above. This means going through the
client authorization flow again or copying and pasting the tokens logged from
the token server into kv.json. Either scenario is more manual than I'd prefer.

Solution:

Use a buffered channel to receive the os.Signal. I got this idea after reading
these docs: https://golang.org/pkg/os/signal/#Notify and I debugged this issue
shortly thereafter.

I also rearranged the order of operations in main/0 to ensure that
handleInterrupts/0, which registers the event listeners, occurs before
scheduleTokenRefresh/2 is called. This allows the token server to gracefully
shutdown even if it's in the middle of the scheduleTokenRefresh/2 call.
2020-02-10 10:06:40 +00:00
William Carroll
323aa41e0f Sketch Monzo client
None of this code is functional at the moment. I'm just writing some ideas of
how I'd like to work.
2020-02-10 10:06:40 +00:00
William Carroll
c83594fb5a Consume auth library
Consume the newly relocated auth package.

Additionally:
- Debugged error where JSON was properly decoding but not populating the
  refreshTokenResponse struct, so my application was signaling false positive
  messages about token refresh events.
- Logging more often and more data to help my troubleshooting
- Refreshing tokens as soon as the app starts just to be safe
- Clean up the code in general
2020-02-10 10:06:40 +00:00
William Carroll
44dca4a188 Move authorization logic into separate package
Relocated the logic for authorizing clients into a separate package that the
tokens server now depends on. Moving this helped me separate concerns. I removed
a few top-level variables and tried to write more pure versions of the
authorization functions to avoid leaking Monzo-specific details.
2020-02-10 10:06:40 +00:00
William Carroll
4ea5a1bffa Support utils.Debug{Request,Response}
Exposing functions to print HTTP request and response structs.
2020-02-10 10:06:40 +00:00
William Carroll
81271498b6 Ignore kv.json
I'm writing sensitive data here, so I'd like to ignore it instead of encrypting
it and publishing it. Perhaps later on, I can extend the key-value store to
handle encryption and decryption but that feels like overkill for now.
2020-02-10 10:06:40 +00:00
William Carroll
aba0cd7b9d Gracefully shutdown server
Listen for SIGINT and SIGTERM signals and write the current state to the
key-value store before shutting down.
2020-02-10 10:06:40 +00:00
William Carroll
0f914d8aa0 Read tokens from store when server starts
Attempting to read the persisted tokens from the key-value store when the server
begins. The server currently fails when those values are empty.

TODO
- Consider adding logic for knowing if the cached tokens are expired and prompt
  the user to reauthorize the client using a web browser.
2020-02-10 10:06:40 +00:00
William Carroll
248c7a24c6 Nixify tokens.go
- Package tokens.go with Nix
- Add monzo_ynab.{job,tokens} to shell.nix
2020-02-10 10:06:40 +00:00
William Carroll
a5ef9b11a6 Remove dead code
Removing a half-baked Monzo HTTP client. A more fully supported and differently
designed one is forthcoming.
2020-02-10 10:06:40 +00:00
William Carroll
64654d1d6d Create gopkgs directory for golang libs
- Created a gopkgs directory and registered it with default.nix's readTree
- Moved monzo_ynab/utils -> gopkgs
- Consumed utils.go in main.go
- Renamed monzo_ynab -> job
2020-02-10 10:06:40 +00:00
William Carroll
ec4c8472ca Support simple key-value store
In order to persist my access and refresh tokens, I needed a store. I think
using a database like SQLite may have been fine for this but was heavier weight
than what I wanted.

I decided to write a simple key-value store when the state is encoded and JSON
in a file called kv.json.

TODO:
- Support field nesting
- Support better error handling
- Support parameterizing the store path (i.e. ./kv.json)
2020-02-10 10:06:40 +00:00
William Carroll
7f8a5176ce Create server for managing Monzo credentials
I created a server to manage my access and refresh tokens. This server exposes a
larger API than it needs to at the moment, but that should change. The goal is
to expose a GET at /token to retrieve a valid access token. The server should
take care of refreshing tokens before they expire and getting entirely new
tokens, should they become so stale that I need to re-authorize my application.

A lot of my development of this project has been clumsy. I'm new to Go; I didn't
understand OAuth2.0; I'm learning concurrent programming (outside of the context
of comfortable Elixir/Erlang).

My habits for writing programs in compiled languages feels amateurish. I find
myself dropping log.Println's all over the source code when I should be using
proper debugging tools like Delve and properly logging with things like
httputil.Dump{Request,Response}.

The application right now is in a transitional state. There is still plenty of
code in main.go that belongs in tokens.go. For instance, the client
authorization code belongs in the tokens server.

Another question I haven't answered is where is the monzo client that I can use
to make function calls like `monzo.Transactions` or `monzo.Accounts`?

The benefit of having a tokens server is that it allows me to maintain state of
the tokens while I'm developing. This way, I can stop and start main.go without
disturbing the state of the access tokens. Of course this isn't the primary
benefit, which is to abstract over the OAuth details and expose an API
that gives me an access token whenever I request one.

The first benefit that I listed could and perhaps should be solved by
introducing some simple persistence. I'd like to write the access tokens to disk
when I shutdown the tokens server and read them from disk when I start the
tokens server. This will come. I could have done this before introducing the
tokens server, and it would have saved me a few hours I think.

Where has my time gone? Mostly I've been re-authorizing my client
unnecessarily. This process is expensive because it opens a web browser, asks me
to enter my email address, sends me an email, I then click the link in that
email. Overall this takes maybe 1-3 minutes in total. Before my tokens server
existed, however, I was doing this about 10-20 times per hour. It's a little
disappointing that I didn't rectify this earlier. I'd like to remain vigilant
and avoid making similar workflow mistakes as I move ahead.
2020-02-10 10:06:40 +00:00
William Carroll
e3ee0734e5 Document more API requests
I'm continuing to use restclient-mode, and I'm enjoying it. Updating the scratch
file with more endpoints and credentials.
2020-02-10 10:06:40 +00:00
William Carroll
2d3428c809 Practice concurrency in golang
Uploading some snippets I created to help me better understand concurrency in
general and specifically concurrency in golang.
2020-02-10 10:06:40 +00:00
William Carroll
2af05f698c Support vterm-mgt.el
I enjoyed using term-switcher so much that I ended up adopting vterm as my
primary terminal. After reaching for vterm as often as I did, I realized that I
would enjoy supporting cycling through instances, creating new instances,
deleting existing instances, renaming instances. Thus spawned vterm-mgt.el.

I'm particularly excited about the KBD to toggle between vterm instances and
source code buffers.
2020-02-10 10:06:40 +00:00
William Carroll
8584059e7c Support cycle/{append,remove}
Supporting these functions was a little tricky. For example, how should we
handle calling cycle/remove on the item that is currently focused? After
attempting to be clever, I decided to just set the value to nil and let the
consumer decide what is best for them. I can always support a more opinionated
version that fallsback to previous-index if previous-index is set. But until I
have a better idea of how I'm going to consume this, I think nil is the best
option.
2020-02-10 10:06:33 +00:00
William Carroll
f145bc9eb6 Support cycle/focus-item
I oftentimes call `cycle/focus` and pass `(lambda (a) (equal a b))`. This
function should tighten up my code.
2020-02-08 15:55:59 +00:00
William Carroll
3f54dd8601 Support cycle/empty?
Add predicate for determining if a cycle contains items.

Updated cycle/{new,from-list} to support setting current-index to nil when a
consumer calls it with an empty list.
2020-02-08 15:55:53 +00:00
William Carroll
5ade510598 Practice writing, printing, traversing matrices
- generate_board: writing
- print_board: reading
- neighbords: reading

I'm working up to creating a function to initialize a game board where no three
adjacent cells either vertically or horizontally should be the same value.
2020-02-08 12:01:25 +00:00
William Carroll
c2971ee04e Practice matrix traversals
Recently I've been asked a few interview questions that involve reading from or
writing to a grid, matrix, game board, etc. I am not as fast as I'd like to be
at this, so I'm going practice.

Here I'm practicing reading from existing matrices. I should practice writing to
empty boards, reading neigboring cells, wrapping around the board (in the case
of Conway's Game of Life), and other useful practices.
2020-02-08 11:38:29 +00:00
William Carroll
1b74342219 Support a restclient.el scratch buffer
I've been using restclient.el and `restclient-mode` lately to test API calls,
and I'm enjoying. I think it might make sense to track these scratch files in
the repo. Who knows? They may serve as a form of documentation.
2020-02-07 21:35:18 +00:00
William Carroll
74211a3c02 Support serde for Monzo and YNAB transaction structs
Define transaction structs for both Monzo and YNAB. Each package has a `main`
function that runs some shallow but preliminary round-trip tests for the
serializers and decoders.

The fixtures.json file that each of them is referencing has been ignored in case
either contains confidential data of which I'm unaware.
2020-02-07 21:33:08 +00:00
William Carroll
4f63b99cee Support YNAB personal-access-token
Define my YNAB personal access token as an environment variable. Prefix Monzo
environment variables with "monzo_" to more easily differentiate between Monzo
credentials and YNAB credentials.
2020-02-07 21:30:24 +00:00