README and upload xkbhyprmodfix
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# xkbhyprmodfix
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Replace CapsLock with Hyper_L without keybinds assigned to Hyper clashing with other modifiers on Mod4.
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Replace CapsLock with Hyper_L without keybinds assigned to Hyper clashing with those on Super.
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Creates a new xkb keymap, "HyperCaps", identical to the user's current keyboard layout, except with CapsLock replaced with Hyper and Hyper_L moved to Mod3. The symbol file for the current layout and the xkb rules files in `/usr/share/X11/xkb` are cloned to `/usr/local/share/X11/xkb/`, edited, and then symlinked to. The original unmodified files are backed up.
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This is a workaround to desktop environments such as KDE overwriting any keyboard setup done with xinit configuration files.
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Must be run as root (to grant access to `/usr/share` and `/usr/local/share`).
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#!/bin/sh
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# test for root
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[ $(id -u) = 0 ] || { printf "%s\n" "xkbhyprmodfix: must be run as root user"; exit 2; }
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rundate="$(date '+%s')" # UNIX timestamp for backups
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# get keyboard layout info
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xkbinfo=$(setxkbmap -query)
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layouts=$(echo "$xkbinfo" | grep "^layout:" | sed -E "s/layout:[[:space:]]+//g")
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variants=$(echo "$xkbinfo" | grep "^variant:" | sed -E "s/variant:[[:space:]]+//g")
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# extract layout and variant settings if only one setting, otherwise ask the user to select which layout they want to modify
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echo "$layouts" | grep -q "," || { layout="$layouts"; variant="$variants"; }
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while ! [ "$layout" ]; do
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layoutcount=$(echo "$layouts" | tr ',' ' ' | wc -w)
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printf "%s " "Multiple keyboard layouts detected ($layouts). Select one to proceed (1-$layoutcount)"
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read -r selection
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case "$selection" in
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''|*[!0-9]*)
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printf "%s\n" "Invalid selection '$selection'."
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continue
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;;
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esac
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{ [ "$selection" -gt 0 ] && [ "$selection" -le "$layoutcount" ]; } || { printf "%s\n" "Invalid selection '$selection'."; continue; }
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layout=$(echo "$layouts" | cut -d"," -f"$selection")
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variant=$(echo "$variants" | cut -d"," -f"$selection")
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done
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# new keyboard will duplicate the existing one
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# the default layout of that language is not a variant, meaning $variant will be empty, but is referred to as "basic" in the symbol file
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# $variant is copied into a new variable which is set to "basic" if blank
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# similarly, "basic" is a valid variant but is considered as no variant in the .lst files
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# $variant is set to blank if it is "basic"
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variant_inherit="$variant"
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[ -n "$variant_inherit" ] || variant_inherit="basic"
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[ "$variant" = "basic" ] && variant=
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xkbdir=/usr/share/X11/xkb
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localxkbdir=/usr/local/share/X11/xkb_hypercaps
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locallayout="$localxkbdir"/symbols/"$layout"
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[ -e "$localxkbdir" ] && {
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printf "%s " "Filepath '$localxkbdir' exists. Files found at this path or its subdirectories may be overwritten. Continue? (y/n)"
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read -r selection
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[ "$selection" = "y" ] || [ "$selection" = "Y" ] || { printf "%s\n" "Exiting."; exit 2; }
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}
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# make sure the layout exists in symbols and hypercaps layout is not already applied
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[ -f "$xkbdir"/symbols/"$layout" ] || { printf "%s\n" "Error: $xkbdir/symbols/$layout not found. Exiting."; exit 2; }
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grep -q 'xkb_symbols "hypercaps" {' "$xkbdir"/symbols/"$layout" && { printf "%s\n" "Error: hypercaps layout for layout '$layout' already exists."; exit 2; }
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# Get layout title
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lstfile=$(wc -l "$xkbdir"/rules/*.lst | grep -v "total$" | sort -b -r -h | sed 's/^[[:space:]]\+[0-9]\+ //g; 1q') # Use the longest .lst file
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[ -n "$variant" ] \
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&& lstpattern="^[[:space:]]{2}${variant}[[:space:]]+$layout:[[:space:]]" \
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|| lstpattern="^[[:space:]]{2}${layout}[[:space:]]{8,}"
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layouttitle=$(grep -E "$lstpattern" "$lstfile" | head -n 1 | sed -E "s/$lstpattern//g")
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[ -n "$layouttitle" ] || { printf "%s\n" "Warning: Keyboard layout name not found in '$lstfile'. Defaulting to '$layout (HyperCaps)' as name."; layouttitle="$layout ()"; }
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hypercapstitle=$(echo "$layouttitle" | sed -E 's/\((.+)\)$/\(\1, HyperCaps\)/; s/\(\)/(HyperCaps)/')
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echo "$hypercapstitle" | grep -q "HyperCaps)" || hypercapstitle="$layouttitle (HyperCaps)"
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# file setup
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mkdir -p "$localxkbdir"/symbols
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mkdir -p "$localxkbdir"/rules
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cp -f "$xkbdir"/symbols/"$layout" "$locallayout"
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cp -f -d -t "$localxkbdir"/rules/ "$xkbdir"/rules/base.xml "$xkbdir"/rules/base.lst \
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"$xkbdir"/rules/evdev.xml "$xkbdir"/rules/evdev.lst \
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"$xkbdir"/rules/xorg.xml "$xkbdir"/rules/xorg.lst
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# append new keyboard layout to copied symbol file if it does not already exist
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grep -q 'xkb_symbols "hypercaps" {' "$locallayout" || \
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printf "\n%s\n%s\n\t%s\n\t%s\n\t%s\n\t%s\n\t%s\n%s\n" \
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"partial alphanumeric_keys" \
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"xkb_symbols \"hypercaps\" {" \
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"include \"$layout($variant_inherit)\"" \
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"replace key <HYPR> { [ Super_L, Super_L ] };" \
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"name[Group1]=\"$hypercapstitle\";" \
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"key <CAPS> { [ Hyper_L ] };" \
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"modifier_map Mod3 { <CAPS> };" \
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"};" >> "$locallayout"
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# modify copied rule files if layout is not already applied
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grep -q "<description>$hypercapstitle</description>" "$localxkbdir"/rules/*.xml || \
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sed -i '/<description>'"$layouttitle"'<\/description>/,/<\/layout>/{/<\/variantList>/i\
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<variant>\
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<configItem>\
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<name>hypercaps</name>\
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<description>'"$hypercapstitle"'</description>\
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</configItem>\
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</variant>
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}' "$localxkbdir"/rules/base.xml "$localxkbdir"/rules/evdev.xml
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grep -q "<description>$hypercapstitle</description>" "$localxkbdir"/rules/*.xml || \
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sed -i '/<description>'"$layouttitle"'<\/description>/,/<\/layout>/{/<\/configItem>/a\
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<variantList>\
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<variant>\
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<configItem>\
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<name>hypercaps</name>\
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<description>'"$hypercapstitle"'</description>\
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</configItem>\
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</variant>\
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</variantList>
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}' "$localxkbdir"/rules/base.xml "$localxkbdir"/rules/evdev.xml
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grep -q "hypercaps $layout: $hypercapstitle" "$localxkbdir"/rules/*.lst || \
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sed -i "/^! variant$/a \ \ hypercaps $layout: $hypercapstitle" "$localxkbdir"/rules/*.lst
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#
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# danger zone
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#
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# backup original files and alias modified copies
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cp -d -f "$xkbdir"/symbols/"$layout" "$xkbdir"/symbols/"${layout}"."${rundate}".bak \
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&& ln -s -f "$locallayout" "$xkbdir"/symbols/"$layout" \
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|| { printf "%s\n" "Unable to apply modified symbol layout to $xkbdir/symbols/$layout"; exit 2; }
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for ext in xml lst; do
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for file in base evdev xorg; do
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cp -d -f "$xkbdir"/rules/"${file}"."${ext}" "$xkbdir"/rules/"${file}"."${rundate}"."${ext}" \
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&& ln -s -f "$localxkbdir"/rules/"${file}"."${ext}" "$xkbdir"/rules/"${file}"."${ext}" \
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|| { printf "%s\n" "Unable to replace rule file '${file}.${ext}"; exit 2; }
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done
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done
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