Friday, March 05, 2021
emacs
a simple function to lock the buffer window, I used it on eshell and a notes buffer, so even delete-other-windows
won't kill it
also I don't need it, but it's easy to create a flag for toggle
(defun lock-window ()
(interactive)
(let ((window (selected-window)))
(set-window-dedicated-p window t)
(set-window-parameter window 'no-other-window t)
(set-window-parameter window 'no-delete-other-windows t)))
the easiest way I could find to include environment variables in a Makefile
:
.EXPORT_ALL_VARIABLES:
FOO=bar
BAR=baz
all:
npm run dev
it will not pollute the shell too
reading Data Science at the Command Line, 2nd Edition, it provides some command line tools for different kind of data format, quite useful
install the csvkit
:
$ brew install csvkit
convert xlsx
file to csv
:
$ in2csv top.xlsx | tee top.csv | head
to extract specific sheet:
$ in2csv --names top2000.xlsx
$ in2csv --sheet Foo top2000.xlsx
grep in a column and output as csv
$ csvgrep top2000.csv -c ARTIEST -r '^Queen$' | csvlook -I
select columns from csv
$ cat top.csv | xsv select name,height,mass,sex,homeworld,species | csvlook
database result to csv
ql2csv --db 'sqlite:///r-datasets.db' \
> --query 'SELECT row_names AS car, mpg FROM mtcars ORDER BY mpg' | csvlook
Saturday, March 06, 2021
the above emacs function can be turned into a minor mode:
(define-minor-mode locky-window-mode
"lock the buffer to a window"
:lighter " LOCKED"
(let ((window (selected-window)))
(set-window-dedicated-p window locky-window-mode)
(set-window-parameter window 'no-other-window locky-window-mode)
(set-window-parameter window 'no-delete-other-windows locky-window-mode)))
(add-hook 'eshell-mode-hook 'locky-window-mode)
(global-set-key (kbd "C-c l") 'locky-window-mode)
found a great article: My go-to Clojure libraries
and interesting idea that using Interceptor pattern (exoscale/interceptor) to replace /Ring/ middlewares:
(def cookies
{:name ::cookies
:enter (fn [ctx] (update ctx :request #(cookies/cookies-request % {})))
:leave (fn [ctx] (update ctx :response #(cookies/cookies-response % {})))})
also provided lots of good libraries:
- error handling: exoscale/ex: In which we deal with exceptions the clojure way
- configuration: juxt/aero: A small library for explicit, intentful configuration.
- jdbc: seancorfield/next-jdbc: A modern low-level Clojure wrapper for JDBC-based access to databases.
- eql: exoscale/seql: Simplfied EDN Query Language for SQL
- logging: pyr/unilog: easy logging setup in clojure
- metrics: Micrometer Application Monitoring
found a clojure news site: today in clojure
Thursday, March 11, 2021
saw more and more zig(lang) lately, for example:
- Zig, Parser Combinators - and Why They're Awesome
- Why I rewrote my Rust keyboard firmware in Zig: consistency, mastery, and fun
looks like it is like golang, not much syntax (unlink rust), maybe I should give it a try:
- Zig in 30 minutes
- ratfactor/ziglings: Learn the Zig programming language by fixing tiny broken programs.
talking about rust: Why asynchronous Rust doesn't work
brings out an article from 2015: What Color is Your Function?
I still can't do async, golang's concurrency approach is easier to me.
recently I'm trying clj-commons/manifold: a compatibility layer for event-driven abstractions
manifold's creator Zach Tellman did a good talk on the why: Zach Tellman - Everything Will Flow
Wednesday, March 17, 2021
watched Clojure Parallelism Beyond Futures
some useful libraries:
- tolitius/lasync: making executor service tougher
- TheClimateCorporation/claypoole: Claypoole: Threadpool tools for Clojure
lasync is very simple and useful, I also like you can just print out the queue to check basic info
claypoole is useful when you need to use pmap
Monday, March 22, 2021
some clojure resources:
Go to this URL http://clojure.github.io/clojure/clojure.core-api.html and start reading from top to bottom.reading Network Programming with Go, notes here
Blog Archive
- Newer Entries
- 2021 April
- 2021 May
- 2021 June
- 2021 August
- 2021 September
- 2021 December
- 2022 March
- 2022 April
- 2022 May
- 2022 June
- 2022 July
- 2022 August
- 2022 September
- 2022 October
- 2022 November
- 2022 December
- 2023 January
- 2023 February
- 2023 March
- 2023 April
- 2023 July
- 2023 August
- 2023 September
- 2023 October
- 2023 November
- 2023 December
- 2024 January
- 2024 February
- 2024 March
- 2024 April
- 2024 May
- 2024 June
- 2024 August
- 2024 September
- 2024 October
- 2024 November
- 2024 December
- Older Entries
- 2021 February
- 2021 January
- 2020 December
- 2020 November
- 2020 October
- 2020 September
- 2020 August
- 2019 December
- 2019 November
- 2019 October
- 2019 July
- 2019 May
- 2019 April
- 2019 March
- 2019 February
- 2019 January
- 2018 December
- 2018 November
- 2018 October
- 2018 September
- 2018 August
- 2018 July
- 2018 June
- 2018 May
- 2018 April
- 2018 March
- 2018 February
- 2018 January
- 2017 December
- 2017 November
- 2017 October
- 2017 September
- 2017 August
- 2017 July
- 2017 June
- 2017 May
- 2017 April
- 2017 March
- 2017 February
- 2017 January
- 2016 December
- 2016 November
- 2016 October
- 2016 September
- 2016 August
- 2016 July
- 2016 June
- 2016 May
- 2016 April
- 2016 March
- 2016 February
- 2016 January
- 2015 December
- 2015 November
- 2015 October
- 2015 September
- 2015 August
- 2015 July
- 2015 June
- 2015 May
- 2015 April
- 2015 March
- 2015 February
- 2015 January
- 2014 December
- 2014 November
- 2014 October
- 2014 September
- 2014 August
- 2014 March
- 2014 February
- 2014 January
- 2013 December
- 2013 October
- 2013 July
- 2013 June
- 2013 May
- 2013 March
- 2013 February
- 2013 January
- 2012 December
- 2012 November
- 2012 October
- 2012 September
- 2012 August