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Add cache code snippet

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I stopped using thefuck because it added over 1.0s on my machine's shell
startup. A cache removes this issue.
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Spenser Truex 2021-01-20 01:15:26 +00:00 committed by GitHub
parent 62dddd5821
commit a19cbd160a
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README.md
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@ -493,6 +493,25 @@ For example:
eval $(thefuck --alias --enable-experimental-instant-mode)
```
## Speeding up shell startup time
The --alias command can be time consuming. It takes `0.16s` on my machine!
```bash
time thefuck --alias
```
If you have multiple aliases, this is an issue. So use a cache in the `.bashrc`!
```bash
[ -n "$XDG_RUNTIME_DIR" ] && thefuck_cache="$XDG_RUNTIME_DIR"/thefuck_cache
[ -z "$XDG_RUNTIME_DIR" ] && thefuck_cache="$HOME"/.local/share/runtime/thefuck_cache
if [ "$(command -v thefuck)" -nt "$thefuck_cache" -o ! -s "$thefuck_cache" ]; then
cachegen="$(mktemp)"
thefuck --alias > $cachegen
thefuck --alias fk >> $cachegen
# more >> lines if wanted...
cat "$cachegen" >| "$thefuck_cache"
trap "rm $cachegen" 0 1 15
fi
unset thefuck_cache
```
## Developing
See [CONTRIBUTING.md](CONTRIBUTING.md)