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|
#
#Deletes an item from history
#
function history --description "Deletes an item from history"
set -l argc (count $argv)
set -l prefix_args ""
set -l contains_args ""
set -l cmd print
set -l search_mode none
set -l pager less
if set -q PAGER
set pager $PAGER
end
if test $argc -gt 0
for i in (seq $argc)
switch $argv[$i]
case --delete
set cmd delete
case --prefix
set search_mode prefix
set prefix_args $argv[(math $i + 1)]
case --contains
set search_mode contains
set contains_args $argv[(math $i + 1)]
case --save
set cmd save
case --clear
set cmd clear
case --search
set cmd print
case --merge
set cmd merge
case --help
set cmd help
case --
set -e argv[$i]
break
case "-*" "--*"
printf ( _ "%s: invalid option -- %s\n" ) history $argv[1] >& 2
return 1
end
end
else
#Execute history builtin without any argument
if status --is-interactive
builtin history | eval $pager
else
builtin history
end
return
end
switch $cmd
case print
# Print matching items
# Note this may end up passing --search twice to the builtin,
# but that's harmless
builtin history --search $argv
case delete
# Interactively delete history
set -l found_items ""
switch $search_mode
case prefix
set found_items (builtin history --search --prefix $prefix_args)
case contains
set found_items (builtin history --search --contains $contains_args)
case none
builtin history $argv
#Save changes after deleting item
builtin history --save
return 0
end
set found_items_count (count $found_items)
if test $found_items_count -gt 0
echo "[0] cancel"
echo "[1] all"
echo
for i in (seq $found_items_count)
printf "[%s] %s \n" (math $i + 1) $found_items[$i]
end
read --local --prompt "echo 'Delete which entries? > '" choice
set choice (string split " " -- $choice)
for i in $choice
# Skip empty input, for example, if the user just hits return
if test -z $i
continue
end
#Following two validations could be embedded with "and" but I find the syntax kind of weird.
if not string match -qr '^[0-9]+$' $i
printf "Invalid input: %s\n" $i
continue
end
if test $i -gt (math $found_items_count + 1)
printf "Invalid input : %s\n" $i
continue
end
if test $i = "0"
printf "Cancel\n"
return
else
if test $i = "1"
for item in $found_items
builtin history --delete $item
end
printf "Deleted all!\n"
else
builtin history --delete $found_items[(math $i - 1)]
end
end
end
#Save changes after deleting item(s)
builtin history --save
end
case save
#Save changes to history file
builtin history $argv
case merge
builtin history --merge
case help
builtin history --help
case clear
# Erase the entire history
echo "Are you sure you want to clear history ? (y/n)"
read ch
if test $ch = "y"
builtin history $argv
echo "History cleared!"
end
end
end
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