Notes

notes.md

Hello world! 🌎

I write notes in this gist as comments. My original goal was to have a workflow where I can't have an excuse to not write. No websites to manage, no codes to push, no styles to update. Just write. I found Github gist fitting and I don't have issues with writing markdown.

This gist contains "problem-based", technical notes. I encounter a problem, I "google" the solution, I document the solution. Hopefully, I can accumulate the learning and don't have to google again when I encounter the same problem.

Besides problem-based, I also write my "TIL" notes here. They are the new things I learnt that often gave me that "nice" feeling when I first found about it.

There are other things I write like electronics, observations, etc. which I put in different gists. If you want to check it, here's the "sitemap" of all my notes:

flowchart TD
  Notes --You are here--> Problem-based[<strong>Problem-based</strong>]
  Notes -.-> Observations
  Notes -.-> Logs
  Notes -.-> Challenges
  Notes -.-> Electronics

  click Problem-based "https://gist.github.com/wzulfikar/ba2f58d7aeeb3cf53743316f96f91594"
  click Observations "https://gist.github.com/wzulfikar/2cff9bcd64ba5f15296e0b57ff402f79"
  click Logs "https://gist.github.com/wzulfikar/5ea5779d7f2ea0e27809e94e7904f93d"
  click Challenges "https://gist.github.com/wzulfikar/7d5e9426d1c7efc3ceeabb29adb2f4fd"
  click Electronics "https://gist.github.com/wzulfikar/16c3b5f10b8f28d8b0e325d03c948d1c"

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Problem-based · Observations · Logs · Challenges · Electronics

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	Fri, Oct 14, 2022
🧶 Problem:	I want to have syntax highlighting in cat
💡 Solution:	use bat and create an alias: alias cat="bat -p"
🔗 Ref:	https://github.com/sharkdp/bat
#️⃣ Tags:	cli tool quality-of-life
🔢 Encounters:	1

Context:
I use cat frequently and I realised it'll be better if it has syntax highlighting. I found this SO comment that suggests to use pygmentize (python) but I find it too slow for me. So I googled around and found bat and I don't feel any speed difference between bat and cat (they're both fast!). So I created shell alias to use bat instead of cat:

alias cat="bat -p"
alias catt="bat --style=full"
alias catp="/bin/cat"

cat, before the alias:	cat, after the alias:
catt (bat with full style):	catp (to access the original cat):

For macOS, installation is easy: brew install bat

	Fri, Oct 14, 2022
🧶 Problem:	Need to search text in a code base
💡 Solution:	use rg
🔗 Ref:	https://github.com/BurntSushi/ripgrep
#️⃣ Tags:	cli tool workflow
🔢 Encounters:	1

Context:
I can't really remember which find args I should use to search texts and I found that rg has sensible defaults that just works. For example, here's how I search "TODO" text in a directory:

The nice thing about rg is it automatically exclude patterns from .gitignore (see docs) so the search result won't be cluttered. Also, it's very fast!

For macOS, installation is easy: brew install ripgrep

	Fri, Oct 14, 2022
🧶 Problem:	Add auto complete for iTerm2
💡 Solution:	use fig
🔗 Ref:	https://github.com/withfig/autocomplete
#️⃣ Tags:	cli workflow quality-of-life
🔢 Encounters:	1

Context:
In VS Code, I can see code hints from IntelliSense which often contain new informations for me:

Then I found that fig can actually do the same for my terminal (iTerm2). Mind blown 🤯:

Here's a preview of fig showing hints for brew, asdf, and npm:

For macOS, installation is easy: brew install fig

	Sat, Oct 15, 2022
💡 TIL:	bat has batdiff that gives you a prettier git diff
🔗 Ref:	https://github.com/eth-p/bat-extras
#️⃣ Tags:	workflow cli quality-of-life

Context:
After playing around with bat (see previous note), I found that bat has bat-extras which integrates syntax highlighting to existing tools. The two extras that I immediately use is batgrep and batdiff.

Here's the preview:

ripgrep:	batgrep:

git diff:	batdiff:

For macOS, installation is easy (after you've installed bat): brew install eth-p/software/bat-extras.

For other platform, see their README.

	Tue, Oct 18, 2022
🧶 Problem:	I want to find all node_modules folders
💡 Solution:	Use find with -prune
🔗 Ref:	SO comment
#️⃣ Tags:	js cli
🔢 Encounters:	1

Context:
I'm curious how many node_modules folders I have accumulated and how many GB it cost me. I found the SO comment (in Ref) that suggests to use find with -prune to list all node_modules folders excluding its descendants (because node_modules can be nested). Note that I mostly use yarn and only recently started using pnpm.

The command to find all node_modules folders:

find . -type d -name node_modules -prune | tr '\n' '\0' |  xargs -0 du -sch

Turns out I have 110 node_modules folders, 31 GB in total. Maybe I should start deleting them.

Here's all my node_modules with their size, for my future reference

Note: some paths are masked (eg. "***") for privacy reason

	size	path
1	319M	./learn/nestjs-fundamentals/iluvcoffee/node_modules
2	197M	./learn/fireship/react-next-firebase/nextfire/node_modules
3	13M	./playground/ava-demo/node_modules
4	784M	./playground/my-solito-app/node_modules
5	0B	./playground/my-solito-app/apps/next/node_modules
6	59M	./playground/my-solito-app/apps/expo/node_modules
7	250M	./playground/my-turborepo/node_modules
8	0B	./playground/my-turborepo/packages/ui/node_modules
9	0B	./playground/my-turborepo/packages/eslint-config-custom/node_modules
10	196K	./playground/my-turborepo/apps/web/node_modules
11	196K	./playground/my-turborepo/apps/docs/node_modules
12	406M	./playground/taskbox/node_modules
13	494M	./playground/hocus2/node_modules
14	176M	./playground/node_modules
15	35M	./playground/hocuspocus/playground/frontend/node_modules
16	1.7M	./playground/hocuspocus/playground/backend/node_modules
17	732M	./playground/hocuspocus/node_modules
18	148K	./playground/hocuspocus/tests/node_modules
19	800K	./playground/hocuspocus/packages/extension-monitor/node_modules
20	0B	./playground/hocuspocus/packages/server/node_modules
21	196K	./playground/hocuspocus/packages/cli/node_modules
22	0B	./playground/hocuspocus/packages/extension-redis/node_modules
23	69M	./playground/total-typescript/advanced-typescript-workshop/node_modules
24	95M	./playground/total-typescript/beginners-typescript-tutorial/node_modules
25	32M	./playground/total-typescript/typescript-generics-workshop/node_modules
26	12M	./playground/total-typescript/type-transformations-workshop/node_modules
27	299M	./playground/rns-react-native-firebase-chat-app/node_modules
28	176M	./playground/qwik-app/node_modules
29	1.0M	./playground/faktory-node-require-jobs/node_modules
30	1.1G	./playground/nativebase-startup/node_modules
31	499M	./playground/hocus/node_modules
32	579M	./playground/nextron-tailwind/node_modules
33	333M	./playground/test-zustand/node_modules
34	145M	./playground/react-query-course/node_modules
35	305M	./playground/rns-WordleClone/node_modules
36	682M	./playground/csb-storybook-zeus/node_modules
37	280M	./playground/rns-over-the-air-update-class/node_modules
38	275M	./playground/kbar/node_modules
39	220M	./playground/slidev-multientry/node_modules
40	20M	./playground/cloudinary-folder-usage/node_modules
41	469M	./playground/expo-template-typescript-jest/node_modules
42	149M	./playground/test-zustand-vite/node_modules
43	93M	./playground/zod-tutorial/node_modules
44	245M	./playground/typesense-instantsearch-demo/node_modules
45	484M	./playground/trpc-prisma-starter/node_modules
46	1.3G	./ki***und/web_v2/node_modules
47	738M	./ki***und/web/node_modules
48	784M	./go****up/x-solito/node_modules
49	0B	./go****up/x-solito/apps/next/node_modules
50	59M	./go****up/x-solito/apps/expo/node_modules
51	1.6G	./go****up/app/node_modules
52	0B	./go****up/_tmp/next/node_modules
53	73M	./go****up/gsdb/node_modules
54	168M	./go****up/hasura/node_modules
55	265M	./go****up/mailer/node_modules
56	2.3G	./go****up/mono-template/node_modules
57	0B	./go****up/mono-template/packages/app/node_modules
58	0B	./go****up/mono-template/packages/test/node_modules
59	0B	./go****up/mono-template/packages/backend/node_modules
60	378M	./go****up/mono-template/packages/hocus/node_modules
61	1.7M	./go****up/mono-template/apps/next/node_modules
62	0B	./go****up/mono-template/apps/tauri/node_modules
63	0B	./go****up/mono-template/apps/expo/node_modules
64	377M	./go****up/mono-template/apps/nextron/node_modules
65	109M	./go****up/firebase-function-custom-user-claims/functions/node_modules
66	1.9G	./go****up/mobile/node_modules
67	0B	./go****up/mobile/packages/test/node_modules
68	0B	./go****up/mobile/packages/backend/node_modules
69	1.7M	./go****up/mobile/apps/next/node_modules
70	0B	./go****up/mobile/apps/expo/node_modules
71	377M	./go****up/mobile/apps/nextron/node_modules
72	691M	./go****up/api/node_modules
73	290M	./go****up/x/packages/app/node_modules
74	12M	./go****up/x/apps/next/node_modules
75	267M	./go****up/x/apps/next/.storybook/node_modules
76	355M	./go****up/x/apps/expo/node_modules
77	0B	./go****up/x/apps/nextron/node_modules
78	0B	./go****up/mono-template-old/packages/app/node_modules
79	0B	./go****up/mono-template-old/packages/test/node_modules
80	0B	./go****up/mono-template-old/packages/backend/node_modules
81	1.7M	./go****up/mono-template-old/apps/next/node_modules
82	268M	./go****up/mono-template-old/apps/next/.storybook/node_modules
83	0B	./go****up/mono-template-old/apps/expo/node_modules
84	5.4M	./gu****d/web/workspace/node_modules
85	1.0G	./gu****d/web/node_modules
86	13M	./github/tailwindui-storybook/node_modules
87	380M	./github/rubytricks.com/node_modules
88	93M	./github/slides/slidev-demo/node_modules
89	4.0K	./github/pr/node_modules
90	272M	./github/pr/pmndrs/node_modules
91	2.2G	./github/triv/node_modules
92	0B	./github/triv/packages/test/node_modules
93	0B	./github/triv/packages/backend/node_modules
94	126M	./github/triv/packages/hocus/node_modules
95	1.7M	./github/triv/apps/next/node_modules
96	0B	./github/triv/apps/tauri/node_modules
97	0B	./github/triv/apps/expo/node_modules
98	377M	./github/triv/apps/nextron/node_modules
99	28M	./github/csproject/node_modules
100	825M	./github/tg-sisubot/node_modules
101	284M	./github/devto/devto-nextjs-api-ts/node_modules
102	709M	./github/csb-storybook/node_modules
103	383M	./github/programmerwfh.com/node_modules
104	1.3G	./github/sensible-meeting/body/node_modules
105	32M	./github/sensible-meeting/RPI/node_modules
106	12K	./github/threejs-journey/bruno-starter-pack/05-transform-objects/node_modules
107	152M	./github/threejs-journey/node_modules
108	11M	./github/threejs-journey/apps/vite-starter/node_modules
109	253M	./github/threejs-journey/apps/fiber-starter/node_modules
110	995M	./github/hypertwind/node_modules
	31G	total

	Wed, Oct 19, 2022
🧶 Problem:	I want macOS to trigger a backup script when I plug in a microSD
💡 Solution:	Use Apple Automator to trigger rsync
🔗 Ref:	Apple Support Community
#️⃣ Tags:	macOS automator workflow
🔢 Encounters:	1

Context:
I have 2 cameras that I use to record videos (DJI Pocket 2 and Akaso Brave 7). After recording some videos, I'll:

1. take out the microSD from the camera
2. plug it in to my card reader
3. copy the videos to my SSD (I use rsync for this)
4. plug out the microSD and put it back to the device.

I noticed the pattern and I thought it'd be good if I can automate number 3. I know I can trigger a script when a device mounted using systemd (eg. this gist) but macOS doesn't have systemd. So I googled and found the discussion in Apple Support Community (see Ref). Turns out I can us Automator for that.

Automator script:

device=$(basename $@)
script=/Volumes/wzulfikar/Devices/$device/sync.sh

[ ! -f "$script" ] && exit 1

osascript -e "display dialog \"Syncing $@..\" giving up after 5"

$script

osascript -e "display dialog \"Sync completed for $@\""

sync.sh script (eg. located in /Volumes/wzulfikar/Devices/DJIPOCKET2/sync.sh):

#!/bin/sh

source=/Volumes/DJIPOCKET2/DCIM/
target=/Volumes/wzulfikar/Devices/DJIPOCKET2/DCIM/

echo "Syncing $source to $target"

rsync -rP --ignore-existing $source $target

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When doing this, I also learnt that Automator stores its scripts in ~/Library/Workflows/Applications. Here's how my Folder Actions script look like in that directory: