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_brew | allow 'brew search' to be cached by zsh

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This commit is contained in:
Romain Bossart 2018-12-10 22:35:14 +01:00
parent fcbaca10ba
commit d2c0d06d8f
1 changed files with 20 additions and 1 deletions
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19
completions/zsh/_brew
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@ -39,9 +39,28 @@ __brew_formulae_or_ruby_files() {
'files:files:{_files -g *.rb}'
}
# formulae completions are cached as long as homebrew does have new commits
__brew_formulae_caching_policy() {
# rebuild cache if no cache file exists (anyway we cannot proceed further down)
! [[ -f "$1" ]] && return 0
# cache file modification date (seconds since epoch)
local -i cache_mtime=$(date -r "$1" +%s)
# latest homebrew commit on HEAD (branch 'stable' by default)
local brew_repo=${HOMEBREW_PREFIX:-/usr/local}/Homebrew/.git
local latest_commit=$(git --git-dir=${brew_repo} rev-parse HEAD) # --branches=refs/stable
# latest homebrew commit date (seconds since epoch)
local -i commit_mtime=$(git --git-dir=${brew_repo} rev-list -1 --format=format:'%at' $latest_commit | tail +2)
(( $cache_mtime < $commit_mtime ))
}
__brew_formulae() {
zstyle ":completion:${curcontext}:" cache-policy __brew_formulae_caching_policy
local -a formulae
local comp_cachename=brew_formulae
if _cache_invalid $comp_cachename || ! _retrieve_cache $comp_cachename; then
formulae=($(brew search))
_store_cache $comp_cachename formulae
fi
_describe -t formulae 'all formulae' formulae
}