serhii.net

History is happening

¹

maven version ranges

(Also used in input of some other internal tools) They are: ¹

Range	Meaning
1.0	x >= 1.0 * The default Maven meaning for 1.0 is everything (,) but with 1.0 recommended. Obviously this doesn't work for enforcing versions here, so it has been redefined as a minimum version.
(,1.0]	x <= 1.0
(,1.0)	x < 1.0
[1.0]	x == 1.0
[1.0,)	x >= 1.0
(1.0,)	x > 1.0
(1.0,2.0)	1.0 < x < 2.0
[1.0,2.0]	1.0 <= x <= 2.0
(,1.0],[1.2,)	x <= 1.0 or x >= 1.2. Multiple sets are comma-separated
(,1.1),(1.1,)	x != 1.1

Python ast literal_eval

literal_eval - ast - Python documentation - Kite

Safely evaluates Python expressions, nice to use for input.

may only consist of the following Python literal structures: strings, numbers, tuples, lists, dicts, booleans, and None.

jq colours

To pipe output with jq to for example less preserving the colours, use -C. (Simialar to --color=always etc.)

jq . $filename -C | less

Zsh prompt change based on dev/prod

The script that sets dev/prod sets a variable to 1 if using dev. Based on that variable I get (or not) a red (B) in my zsh prompt.

Did these changes to the theme clean2.zsh-theme:

PROMPT='%{$fg[green]%}(%*/%!)$ZSH_USING_DEV%{$fg[$NCOLOR]%}%B%b%{$reset_color%}%{$fg[blue]%}%B%5c/%b%{$reset_color%} $(git_prompt_info)%(!.#.$) '

ZSH_USING_DEV=""
if [ "$USING_DEV" = "1" ] 
	then
		ZSH_USING_DEV="%{$fg_bold[red]%}[B]%{$fg[$NCOLOR]%}"
	fi

and in ~/.zsrhc

alias uc='. ~/s/setenv.sh p'
alias ud='. ~/s/setenv.sh d'

zsh prompt export variables from a script

Using the usual ./ way doesn’t work!

Note the . ~/s.. in the script above. Running it as ~/what.sh will create a new shell, export the new values there, and close it. Starting with a . will make it run the script without starting a new shell. ¹

Confluence tabs + publishing

“Publish without notifying watchers” exits.

If I paste something from vim that has tabs in it in a Code block, in the Edit window it will look fine, but won’t at the end. Editing again will make it again look fine in the edit window. Moral: use spaces.

vim tabs

If you copypaste things from it to code blocks in jira/confluence it will start being weird. You can do expandtabs/retab to convert it to something that looks just like this with spaces when saved. Though feels suboptimal.

Multiple monitors / productivity idea

If I have a laptop and two external monitors, put the ‘distracting’ things on the laptop monitor and close the laptop. Open it when I’m officially doing a pause.

My aliases for grep and history

I shouldn’t forget that I have g aliased to grep, along with h to history | grep. Just tried this and it works:

h vim | g http

zsh expand all aliases; zsh keybindings; zsh show all files in directory

Added this ¹ to ./zshrc:

expand-aliases() {
  unset 'functions[_expand-aliases]'
  functions[_expand-aliases]=$BUFFER
  (($+functions[_expand-aliases])) &&
    BUFFER=${functions[_expand-aliases]#$'\t'} &&
    CURSOR=$#BUFFER
}

zle -N expand-aliases
bindkey '^E' expand-aliases

^E is <C-e>. Gets run anytime I use it, without connection to the written text. Neat.

Also found this in ./.zshrc:

# Usage:
#   In the middle of the command line:
#     (command being typed)<TAB>(resume typing)
#
#   At the beginning of the command line:
#     <SPACE><TAB>
#     <SPACE><SPACE><TAB>
#
# Notes:
#   This does not affect other completions
#   If you want 'cd ' or './' to be prepended, write in your .zshrc 'export TAB_LIST_FILES_PREFIX'
#   I recommend to complement this with push-line-or edit (bindkey '^q' push-line-or-edit)
function tab_list_files
{
  if [[ $#BUFFER == 0 ]]; then
    BUFFER="ls "
    CURSOR=3
    zle list-choices
    zle backward-kill-word
  elif [[ $BUFFER =~ ^[[:space:]][[:space:]].*$ ]]; then
    BUFFER="./"
    CURSOR=2
    zle list-choices
    [ -z ${TAB_LIST_FILES_PREFIX+x} ] && { BUFFER="  "; CURSOR=2; }
  elif [[ $BUFFER =~ ^[[:space:]]*$ ]]; then
    BUFFER="cd "
    CURSOR=3
    zle list-choices
    [ -z ${TAB_LIST_FILES_PREFIX+x} ] && { BUFFER=" "; CURSOR=1; }
  else
    BUFFER_=$BUFFER
    CURSOR_=$CURSOR
    zle expand-or-complete || zle expand-or-complete || {
      BUFFER="ls "
      CURSOR=3
      zle list-choices
      BUFFER=$BUFFER_
      CURSOR=$CURSOR_
    }
  fi
}

zle -N tab_list_files
bindkey '^I' tab_list_files

<C-i> gives a list of files in the directory, and space-space-tab at the beginning of the line too. <C-q> (push-line-or-edit). More about it here: TIL: save half-typed commands in bash and zsh « Serge Gebhardt (sgeb.io) TL;DR remove command currently being edited and paste it at the next Return.

German / English / slang

Seen in the wild at work: ASAPST - like ASAP, but even more urgent. ¹

Linux multiple cameras/webcams

Just found this hack: if the program you want to use doesn’t pick the right camera and you can’t control that through settings, open another program that will use the wrong camera - the first program will pick the first free camera, the one you want.

Jira formatting

Didn’t know that underline is marked +like this+. Why can’t we just agree on a flavour of markdown :(

vim

Changed my main dtb log file from using spaces to using tabs. ¹

:set tabstop=2      " To match the sample file
:set noexpandtab    " Use tabs, not spaces
:%retab!            " Retabulate the whole file

Added set listchars=tab:\:\ to vimrc. NB space at the end.

vim open multiple files via stdin

When trying to do this: find | grep \/model | grep descr | xargs vim -p it opens all files in different tabs as wanted, but breaks the terminal afterwards (need to reset it).

intellij idea tests “No tests found matching Method”

Sometimes I see it and randomly restart and somehow it goes away, today it didn’t.

The usual ‘Invalidate Caches & Restart’ didn’t fix it for me. BUT I had forgotten to annotate it as @Test.

Other ideas about this from StackOverflow: ¹

• run the entire suite, not just that one test
• If you rename the test it may use the last working running configuration that will fail

Jira markup - indented bullet points / subpoints

Uses asterisks, not indentation.

* I am a bullet point
** I am related to the first one

Intellij idea ‘for’

Didn’t notice it before, but Idea shows the beginning condition of the loop when it’s outside the screen and cursor is on it’s closing braket.

TODO vim

Write something that: a) pastes multiline things automatically at the correct indentation b) copies URIs alone, without leading tabs/spaces. As a bonus - copies only the URI at a certain line without anything else. (I believe I can use kitty for this too, need to look into hints again)