Zsh: Put functions in directory and autoload them

.config/zsh/.zprofile

@@ -131,7 +131,8 @@ case $(hostname) in
         ;;
 esac
 
-[[ -f ${ZDOTDIR}/zsecrets ]] && source ${ZDOTDIR}/zsecrets
+[[ -f "${ZDOTDIR}"/zsecrets ]] && source "${ZDOTDIR}"/zsecrets
+[[ -d "${ZDOTDIR}"/functions ]] && fpath+="${ZDOTDIR}"/functions
 
 ############################# Daemons ##########################################
 

.config/zsh/.zshrc

@@ -181,9 +181,9 @@ esac
 precmd_functions=(${(u)precmd_functions})
 preexec_functions=(${(u)preexec_functions})
 
-[[ -f ${ZDOTDIR}/zkeys ]] && source ${ZDOTDIR}/zkeys
-[[ -f ${ZDOTDIR}/zaliases ]] && source ${ZDOTDIR}/zaliases
-[[ -f ${ZDOTDIR}/functions.zsh ]] && source ${ZDOTDIR}/functions.zsh
+[[ -f "${ZDOTDIR}"/zkeys ]] && source "${ZDOTDIR}"/zkeys
+[[ -f "${ZDOTDIR}"/zaliases ]] && source "${ZDOTDIR}"/zaliases
+[[ -d "${ZDOTDIR}"/functions ]] && autoload -Uz "${ZDOTDIR}"/functions/*
 
 local DEFAULT_USER="${DEFAULT_USER:-tastytea}"
 [[ -f ${ZDOTDIR}/tastytea.zsh-theme ]] && source ${ZDOTDIR}/tastytea.zsh-theme

.config/zsh/functions.zsh

@@ -1,70 +0,0 @@
-#!/bin/zsh
-# Various small functions
-
-# Get backtrace from gdb.
-function gdb_get_backtrace()
-{
-    local exe=$1
-    local core=$2
-
-    gdb ${exe} \
-        --core ${core} \
-        --batch \
-        --quiet \
-        -ex "thread apply all bt full" \
-        -ex "quit"
-}
-
-# Export variable to Emacs.
-function export-emacs
-{
-    if [[ "$(emacsclient -e t)" != 't' ]]; then
-        return 1
-    fi
-
-    for name in "${@}"; do
-        value=$(eval echo \"\$${name}\")
-        emacsclient -e "(setenv \"${name}\" \"${value}\")" >/dev/null
-    done
-}
-
-# Highlight cat output with whatever less is using for highlighting. The command
-# in $LESSOPEN needs to be able to work with multiple files.
-function cat-highlight()
-{
-    # Check if we are in a terminal and $LESSOPEN is not empty
-    if [[ -t 1 && -n "${LESSOPEN}" ]]; then
-        local -a args
-        local -a files
-        for arg in $@; do
-            # Filter out file names
-            if [[ "${arg:0:1}" != "-" ]]; then
-                files+="$arg"
-            else
-                args+="$arg"
-            fi
-        done
-
-        local catopen="${LESSOPEN/|/}"
-        eval "${catopen/\%s/${files}} | \cat ${args}"
-    else
-        \cat $@
-    fi
-}
-
-# Makes all files in DIR lower case. Works with Non-ASCII characters.
-# Equivalent to `zmv "${dir}/(*)" '${dir}/${1:l}'`
-function mksmol()
-{
-    if [[ ${ARGC} -ne 1 ]]; then
-        echo "usage: ${0} DIR" >&2
-        return 1
-    fi
-    local dir="${1}"
-
-    for file in "${dir}"/*; do
-        basename="${file##*/}"
-        newfile="${dir}/${basename:l}"
-        [[ "${file}" != "${newfile}" ]] && mv "${file}" "${newfile}" || :
-    done
-}

.config/zsh/functions/cat-highlight

@@ -0,0 +1,25 @@
+# -*- mode: shell-script; -*-
+
+# Highlight cat output with whatever less is using for highlighting. The command
+# in $LESSOPEN needs to be able to work with multiple files.
+function cat-highlight()
+{
+    # Check if we are in a terminal and $LESSOPEN is not empty
+    if [[ -t 1 && -n "${LESSOPEN}" ]]; then
+        local -a args
+        local -a files
+        for arg in "${@}"; do
+            # Filter out file names
+            if [[ "${arg[1]}" != "-" ]]; then
+                files+="${arg}"
+            else
+                args+="${arg}"
+            fi
+        done
+
+        local catopen="${LESSOPEN/|/}"
+        eval "${catopen/\%s/${files}} | \cat ${args}"
+    else
+        \cat "${@}"
+    fi
+}

.config/zsh/functions/export-emacs

@@ -0,0 +1,18 @@
+# -*- mode: shell-script; -*-
+
+# Export variable to Emacs.
+function export-emacs
+{
+    if [[ ARGC -eq 0 ]]; then
+        print -u 2 "Usage: ${0} <variable> …"
+        return 1
+    fi
+
+    # Fail if we can't communicate with the daemon
+    [[ "$(emacsclient -e t)" == 't' ]] || return 1
+
+    for name in "${@}"; do
+        value=$(eval print \"\$${name}\")
+        emacsclient -e "(setenv \"${name}\" \"${value}\")" >/dev/null
+    done
+}

.config/zsh/functions/gdb_get_backtrace

@@ -0,0 +1,19 @@
+# -*- mode: shell-script; -*-
+
+# Get backtrace from gdb
+function gdb_get_backtrace()
+{
+    if [[ ${ARGC} -ne 2 ]]; then
+        print -u 2 "Usage: ${0} <executable> <core dump>"
+        return 1
+    fi
+    local exe="${1}"
+    local core="${2}"
+
+    gdb "${exe}" \
+        --core "${core}" \
+        --batch \
+        --quiet \
+        -ex "thread apply all bt full" \
+        -ex "quit"
+}

.config/zsh/functions/mksmol

@@ -0,0 +1,18 @@
+# -*- mode: shell-script; -*-
+
+# Makes all files in <directory> lower case. Works with Non-ASCII characters.
+# Equivalent to `zmv "${dir}/(*)" '${dir}/${1:l}'`
+function mksmol()
+{
+    if [[ ${ARGC} -ne 1 ]]; then
+        print -u 2 "Usage: ${0} <directory>" >&2
+        return 1
+    fi
+    local dir="${1}"
+
+    for file in "${dir}"/*; do
+        basename="${file##*/}"
+        newfile="${dir}/${basename:l}"
+        [[ "${file}" != "${newfile}" ]] && mv "${file}" "${newfile}" || :
+    done
+}