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ohmyzsh/lib/history.zsh
Marco Trevisan ed4e317bbb
lib: don't override bigger HISTSIZE and SAVEHIST values (#8993)
oh-my-zsh Changes the HISTSIZE and SAVEHIST values to fixed sizes,
however if a bigger value is set in ~/.zshrc, it will override it,
potentially causing the user history to be deleted.

So, only set these values if no other is set and if it is lower than the
default ones.
2020-06-03 19:34:57 +02:00

39 lines
1.5 KiB
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## History wrapper
function omz_history {
local clear list
zparseopts -E c=clear l=list
if [[ -n "$clear" ]]; then
# if -c provided, clobber the history file
echo -n >| "$HISTFILE"
echo >&2 History file deleted. Reload the session to see its effects.
elif [[ -n "$list" ]]; then
# if -l provided, run as if calling `fc' directly
builtin fc "$@"
else
# unless a number is provided, show all history events (starting from 1)
[[ ${@[-1]-} = *[0-9]* ]] && builtin fc -l "$@" || builtin fc -l "$@" 1
fi
}
# Timestamp format
case ${HIST_STAMPS-} in
"mm/dd/yyyy") alias history='omz_history -f' ;;
"dd.mm.yyyy") alias history='omz_history -E' ;;
"yyyy-mm-dd") alias history='omz_history -i' ;;
"") alias history='omz_history' ;;
*) alias history="omz_history -t '$HIST_STAMPS'" ;;
esac
## History file configuration
[ -z "$HISTFILE" ] && HISTFILE="$HOME/.zsh_history"
[ "$HISTSIZE" -lt 50000 ] && HISTSIZE=50000
[ "$SAVEHIST" -lt 10000 ] && SAVEHIST=10000
## History command configuration
setopt extended_history # record timestamp of command in HISTFILE
setopt hist_expire_dups_first # delete duplicates first when HISTFILE size exceeds HISTSIZE
setopt hist_ignore_dups # ignore duplicated commands history list
setopt hist_ignore_space # ignore commands that start with space
setopt hist_verify # show command with history expansion to user before running it
setopt share_history # share command history data