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