Merge branch 'release/v3.2.0'v3.2.0

* release/v3.2.0:
  Bump VERSION
  Refactor some conditionals
  Factor out zsh ENV hack into one file
  Refactor "path list" not to require a subshell
  Correct completion for deep pass(1) directories
  Move filetype.vim helper funcs into autoload
  Fix a local var name in openssl(1ssl) completion
  Correct a variable ref in openssl(1ssl) completion
  Disable shellcheck rules for missed definition
  Add filenames treatment to mex(1df) completion
  Remove unneeded declaration
  Refactor some completions to avoid loops
  Remove unneeded stdout redirect
  Remove unneeded semicolon from sh "for VAR ; do"
  Substitute bad `continue` for `return`
  Add actual completion matching to git completion
  Apply much simpler completion to Git

9 files changed, 74 insertions, 44 deletions

diff --git a/sh/shrc.d/bc.sh b/sh/shrc.d/bc.sh
index aee88e09..591b4359 100644
--- a/sh/shrc.d/bc.sh
+++ b/sh/shrc.d/bc.sh
@@ -6,8 +6,9 @@
 bc() {
 
     # Add --quiet to stop the annoying welcome banner
-    [ -e "$HOME"/.cache/sh/opt/bc/quiet ] &&
+    if [ -e "$HOME"/.cache/sh/opt/bc/quiet ] ; then
         set -- --quiet "$@"
+    fi
 
     # Run bc(1) with the concluded arguments
     command bc "$@"
diff --git a/sh/shrc.d/ed.sh b/sh/shrc.d/ed.sh
index e6b6eee8..dc8433f6 100644
--- a/sh/shrc.d/ed.sh
+++ b/sh/shrc.d/ed.sh
@@ -12,16 +12,18 @@ ed() {
     fi
 
     # Add --verbose to explain errors
-    [ -e "$HOME"/.cache/sh/opt/ed/verbose ] &&
+    if [ -e "$HOME"/.cache/sh/opt/ed/verbose ] ; then
         set -- --verbose "$@"
+    fi
 
     # Add an asterisk prompt (POSIX feature)
     set -- -p\* "$@"
 
     # Run in rlwrap(1) if available
     set -- ed "$@"
-    command -v rlwrap >/dev/null 2>&1 &&
+    if command -v rlwrap >/dev/null 2>&1 ; then
         set -- rlwrap --history-filename=/dev/null "$@"
+    fi
 
     # Run determined command
     command "$@"
diff --git a/sh/shrc.d/grep.sh b/sh/shrc.d/grep.sh
index 43797ef5..997babc9 100644
--- a/sh/shrc.d/grep.sh
+++ b/sh/shrc.d/grep.sh
@@ -9,37 +9,43 @@ unset -v GREP_OPTIONS
 grep() {
 
     # Add --binary-files=without-match to gracefully skip binary files
-    [ -e "$HOME"/.cache/sh/opt/grep/binary-files ] &&
+    if [ -e "$HOME"/.cache/sh/opt/grep/binary-files ] ; then
         set -- --binary-files=without-match "$@"
+    fi
 
     # Add --color=auto if the terminal has at least 8 colors
-    [ -e "$HOME"/.cache/sh/opt/grep/color ] &&
-    [ "$({ tput colors||tput Co||echo 0; } 2>/dev/null)" -ge 8 ] &&
+    if [ -e "$HOME"/.cache/sh/opt/grep/color ] &&
+        [ "$({ tput colors||tput Co||echo 0; } 2>/dev/null)" -ge 8 ] ; then
         set -- --color=auto "$@"
+    fi
 
     # Add --devices=skip to gracefully skip devices
-    [ -e "$HOME"/.cache/sh/opt/grep/devices ] &&
+    if [ -e "$HOME"/.cache/sh/opt/grep/devices ] ; then
         set -- --devices=skip "$@"
+    fi
 
     # Add --directories=skip to gracefully skip directories
-    [ -e "$HOME"/.cache/sh/opt/grep/directories ] &&
+    if [ -e "$HOME"/.cache/sh/opt/grep/directories ] ; then
         set -- --directories=skip "$@"
+    fi
 
     # Add --exclude to ignore .gitignore and .gitmodules files
-    [ -e "$HOME"/.cache/sh/opt/grep/exclude ] &&
+    if [ -e "$HOME"/.cache/sh/opt/grep/exclude ] ; then
         set -- \
             --exclude=.gitignore \
             --exclude=.gitmodules \
             "$@"
+    fi
 
     # Add --exclude-dir to ignore version control dot-directories
-    [ -e "$HOME"/.cache/sh/opt/grep/exclude-dir ] &&
+    if [ -e "$HOME"/.cache/sh/opt/grep/exclude-dir ] ; then
         set -- \
             --exclude-dir=.cvs \
             --exclude-dir=.git \
             --exclude-dir=.hg \
             --exclude-dir=.svn \
             "$@"
+    fi
 
     # Run grep(1) with the concluded arguments
     command grep "$@"
diff --git a/sh/shrc.d/gt.sh b/sh/shrc.d/gt.sh
index 95ab4c2f..7a52571d 100644
--- a/sh/shrc.d/gt.sh
+++ b/sh/shrc.d/gt.sh
@@ -19,7 +19,9 @@ gt() {
     done
 
     # If target isn't a directory, chop to its parent
-    [ -d "$1" ] || set -- "${1%/*}"
+    if ! [ -d "$1" ] ; then
+        set -- "${1%/*}"
+    fi
 
     # Try to change into the determined directory, or root if empty
     command cd -- "${1:-/}"
diff --git a/sh/shrc.d/ls.sh b/sh/shrc.d/ls.sh
index 7e843cc7..1083dfca 100644
--- a/sh/shrc.d/ls.sh
+++ b/sh/shrc.d/ls.sh
@@ -12,26 +12,30 @@ unset -v LS_OPTIONS LS_COLORS
 # Define function proper
 ls() {
 
-    # -F to show trailing indicators of the filetype
-    # -q to replace control chars with '?'
+    # POSIX options:
+    ## -F to show trailing indicators of the filetype
+    ## -q to replace control chars with '?'
     set -- -Fq "$@"
-
-    # If output is to a terminal, add -x to format entries across, not down
-    [ -t 1 ] && set -- -x "$@"
-
-    # Add --block-size=K to always show the filesize in kibibytes
-    [ -e "$HOME"/.cache/sh/opt/ls/block-size ] &&
+    ## -x to format entries across, not down, if output looks like a terminal
+    if [ -t 1 ] ; then
+        set -- -x "$@"
+    fi
+
+    # GNU options:
+    ## Add --block-size=K to always show the filesize in kibibytes
+    if [ -e "$HOME"/.cache/sh/opt/ls/block-size ] ; then
         set -- --block-size=1024 "$@"
-
-    # Add --color if the terminal has at least 8 colors
-    [ -e "$HOME"/.cache/sh/opt/ls/color ] &&
-    [ "$({ tput colors||tput Co||echo 0; } 2>/dev/null)" -ge 8 ] &&
+    fi
+    ## Add --color if the terminal has at least 8 colors
+    if [ -e "$HOME"/.cache/sh/opt/ls/color ] &&
+        [ "$(exec 2>/dev/null;tput colors||tput Co||echo 0)" -ge 8 ] ; then
         set -- --color=auto "$@"
-
-    # Add --time-style='+%Y-%m-%d %H:%M:%S' to show the date in my preferred
-    # (fixed) format
-    [ -e "$HOME"/.cache/sh/opt/ls/time-style ] &&
+    fi
+    ## Add --time-style='+%Y-%m-%d %H:%M:%S' to show the date in my preferred
+    ## (fixed) format
+    if [ -e "$HOME"/.cache/sh/opt/ls/time-style ] ; then
         set -- --time-style='+%Y-%m-%d %H:%M:%S' "$@"
+    fi
 
     # If the operating system is FreeBSD, there are some specific options we
     # can add that might mean different things to e.g. GNU ls(1)
diff --git a/sh/shrc.d/mkcd.sh b/sh/shrc.d/mkcd.sh
index c59a8c54..cd882b51 100644
--- a/sh/shrc.d/mkcd.sh
+++ b/sh/shrc.d/mkcd.sh
@@ -1,4 +1,5 @@
 # Create a directory and change into it
 mkcd() {
-    mkdir -p -- "$1" && command cd -- "$1"
+    command -p mkdir -p -- "$1" || return
+    command cd -- "$1"
 }
diff --git a/sh/shrc.d/path.sh b/sh/shrc.d/path.sh
index b6b1820f..a854e148 100644
--- a/sh/shrc.d/path.sh
+++ b/sh/shrc.d/path.sh
@@ -5,15 +5,16 @@ path() {
     case $1 in
 
         # List current directories in PATH
-        list|'') (
-            path=$PATH:
-            while [ -n "$path" ] ; do
-                dir=${path%%:*}
-                path=${path#*:}
-                [ -n "$dir" ] || continue
-                printf '%s\n' "$dir"
+        list|'')
+            set -- "$PATH":
+            while [ -n "$1" ] ; do
+                case $1 in
+                    :*) ;;
+                    *) printf '%s\n' "${1%%:*}" ;;
+                esac
+                set -- "${1#*:}"
             done
-            ) ;;
+            ;;
 
         # Helper function checks directory argument makes sense
         _argcheck)
@@ -33,7 +34,9 @@ path() {
 
         # Add a directory at the start of $PATH
         insert)
-            [ "$#" -eq 2 ] || set -- "$1" "$PWD"
+            if ! [ "$#" -eq 2 ] ; then
+                set -- "$1" "$PWD"
+            fi
             path _argcheck "$@" || return
             if path check "$2" ; then
                 printf >&2 'path(): %s: %s already in PATH\n' "$@"
@@ -44,7 +47,9 @@ path() {
 
         # Add a directory to the end of $PATH
         append)
-            [ "$#" -eq 2 ] || set -- "$1" "$PWD"
+            if ! [ "$#" -eq 2 ] ; then
+                set -- "$1" "$PWD"
+            fi
             path _argcheck "$@" || return
             if path check "$2" ; then
                 printf >&2 'path(): %s: %s already in PATH\n' "$@"
@@ -55,7 +60,9 @@ path() {
 
         # Remove a directory from $PATH
         remove)
-            [ "$#" -eq 2 ] || set -- "$1" "$PWD"
+            if ! [ "$#" -eq 2 ] ; then
+                set -- "$1" "$PWD"
+            fi
             path _argcheck "$@" || return
             if ! path check "$2" ; then
                 printf >&2 'path(): %s: %s not in PATH\n' "$@"
@@ -107,7 +114,9 @@ path() {
         # Check whether a directory is in PATH
         check)
             path _argcheck "$@" || return
-            [ "$#" -eq 2 ] || set -- "$1" "$PWD"
+            if ! [ "$#" -eq 2 ] ; then
+                set -- "$1" "$PWD"
+            fi
             case :$PATH: in
                 *:"$2":*) return 0 ;;
             esac
diff --git a/sh/shrc.d/tree.sh b/sh/shrc.d/tree.sh
index d462f3e1..a7e5bef3 100644
--- a/sh/shrc.d/tree.sh
+++ b/sh/shrc.d/tree.sh
@@ -22,7 +22,7 @@ tree() {
         [ -t 1 ] || exit
 
         # Not if output terminal doesn't have at least 8 colors
-        [ "$({ tput colors||tput Co||echo 0; } 2>/dev/null)" -ge 8 ]
+        [ "$(exec 2>/dev/null;tput colors||tput Co||echo 0)" -ge 8 ]
 
     ) ; then
         set -- -C "$@"
diff --git a/sh/shrc.d/vr.sh b/sh/shrc.d/vr.sh
index 8b35357c..c7057ec2 100644
--- a/sh/shrc.d/vr.sh
+++ b/sh/shrc.d/vr.sh
@@ -11,9 +11,14 @@ vr() {
             exit 2
         fi
 
-        # Get path from first argument, strip trailing slash
+        # Get path from first argument
         path=${1:-"$PWD"}
-        [ "$path" = / ] || path=${path%/}
+
+        # Strip a trailing slash
+        case $path in
+            (/) ;;
+            (*) path=${path%/} ;;
+        esac
 
         # Step into the directory
         cd -- "$path" || exit
@@ -34,7 +39,7 @@ vr() {
         # that is the root (bad)
         while svn info >/dev/null 2>&1 ; do
             root=$PWD
-            [ "$root" = / ] && break
+            ! [ "$root" = / ] || break
             cd .. || exit
         done
         if [ -n "$root" ] ; then