Investigate other prompt libraries that do expensive work

dimo414 / bash-cache

Transparent caching layer for bash functions; particularly useful for functions invoked as part of your prompt.

GNU General Public License v3.0

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Closed dimo414 closed 4 years ago

dimo414 commented 6 years ago

Original report by Michael Diamond (Bitbucket: dimo414).

Known examples:

dimo414 commented 6 years ago

Original comment by Michael Diamond (Bitbucket: dimo414).

Came across https://bitbucket.org/sivann/runcached which provides a Bash cache utility.

See also https://medium.com/@henrebotha/how-to-write-an-asynchronous-zsh-prompt-b53e81720d32 which describes an async approach that updates shell variables, rather than memoizing function calls.

dimo414 commented 4 years ago

I don't actually see any caching in git-prompt
runcached.sh uses a fixed 60s TTL and merges stdout and stderr. It looks like there are data races (e.g. reading the $cmdexitcode file) as well
an-asyn-zsh-prompt uses a worker process to warm the cache; no TTL but no stalling waiting for commands to complete

Nothing particular stood out to me that merited addressing in bash-cache.