Let's say you have a gitignore-like file:
# https://github.com/fritx/dotfiles
# .gitignore
*
!.gitignore
!README.md
!prs-welcome.svg
!.bashrc
!.bash_profile
!.exports
!.aliases
!.editorconfig
You want to cp the listed files to another folder.
Do it in bash?
files=$(cat .gitignore | sed /^\*$/d | sed s/\!//)
for file in $files; do cp $file ./dotfiles/; done
# or even
cat file | sed /^\*$/d | sed s/\!// \
| while read -r file; do cp $file ./dotfiles/; done
# thanks to @congeec, http://v2ex.com/t/278831#reply3
sed /^\*$/d .gitignore | sed s/\!// | xargs -I{} cp {} ./dotfiles/
WTF?
As a node.js developer, what if using just js flow/style?
cat .gitignore | js -ti 'x.trim().split(`\n`).slice(1).map(x => x.slice(1))' \
| js -e 'exec(`cp ${x} ./dotfiles/`)'
# same as
cat .gitignore | js -ti 'x.trim().split(`\n`)' \
| js 'x.slice(1)' \
| js 'x.map(x => x.slice(1))' \
| js -e -c 'cp ${x} ./dotfiles/'# lodash is also integrated in
# https://github.com/lodash/lodash
echo '[1,2,3,4]' | js '_.filter(x, x => x % 2)' \
| js '_.reverse(x)' \
> file
# or in chain
echo '[1,2,3,4]' \
| js '_(x).filter(x => x % 2).reverse().value()' \
> fileDon't forget to take an alias if you want.
npm install -g jayin
alias js="jayin"-
-ti: input as text, no more JSON.parse -
-to: output as text, no more JSON.stringify -
-t: input/output both as text -
-e: for each, in chain -
-c: shortcut of exec(cmd) -
x: current input value -
i: current index value (with -e) -
_: lodash -
exec(cmd): child_process.execSync(cmd)
jayin is based on through2.
If you've seen anything that is similar to this, don't hesitate to let me know ;)
| os | Windows | Ubuntu | MacOS |
|---|---|---|---|
| supported | ✅ | ✅ | ✅ |
| node | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 |
|---|---|---|---|---|---|---|---|---|
| supported | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
See also: .github/workflows/
MIT License
Copyright (c) 2016-Present Fritz Lin
