zshrc: bk() update

[grml-etc-core.git] / etc / zsh / zshrc

diff --git a/etc/zsh/zshrc b/etc/zsh/zshrc
index 1597b36..14923e7 100644 (file)
--- a/etc/zsh/zshrc
+++ b/etc/zsh/zshrc
@@ -1393,7 +1393,6 @@ bind2maps emacs             -- Left   backward-char
 bind2maps       viins vicmd -- Left   vi-backward-char
 bind2maps emacs             -- Right  forward-char
 bind2maps       viins vicmd -- Right  vi-forward-char
-bind2maps       viins vicmd -- Right  vi-forward-char
 #k# Perform abbreviation expansion
 bind2maps emacs viins       -- -s '^x.' zleiab
 #k# Display list of abbreviations that would expand
@@ -1699,7 +1698,7 @@ batteryopenbsd(){
 GRML_BATTERY_LEVEL=''
 local bat batfull batwarn batnow num
 for num in 0 1 ; do
-    bat=$(sysctl -n hw.sensors.acpibat${num})
+    bat=$(sysctl -n hw.sensors.acpibat${num} 2>/dev/null)
     if [[ -n $bat ]]; then
         batfull=${"$(sysctl -n hw.sensors.acpibat${num}.amphour0)"%% *}
         batwarn=${"$(sysctl -n hw.sensors.acpibat${num}.amphour1)"%% *}
@@ -2955,8 +2954,6 @@ export COLORTERM="yes"
 # general
 #a2# Execute \kbd{du -sch}
 alias da='du -sch'
-#a2# Execute \kbd{jobs -l}
-alias j='jobs -l'
 
 # listing stuff
 #a2# Execute \kbd{ls -lSrah}
@@ -3022,16 +3019,60 @@ fi
 #f5# Backup \kbd{file_or_folder {\rm to} file_or_folder\_timestamp}
 bk() {
     emulate -L zsh
-    while (( $# > 0 )); do
-        if islinux; then
-            cp -a "$1" "$1_$(date --iso-8601=m)"
-        elif isopenbsd; then
-            cp -R "$1" "$1_$(date "+%FT%H:%M")"
-        else;
-            echo 'sorry, not yet implemented, send a patch!' >&2
-        fi
-        shift
+    local current_date=$(date -u "+%Y-%m-%dT%H:%M:%SZ")
+    local keep move verbose result
+    usage() {
+        cat << EOT
+bk [-hcmv] FILE [FILE ...]
+Backup a file or folder in place and append the timestamp
+
+Usage:
+-h    Display this help text
+-c    Keep the file/folder as is, create a copy backup using cp(1) (default)
+-m    Move the file/folder, using mv(1)
+-v    Verbose
+
+The -c and -m options can't be used at the same time. If both specified, the
+last one is used.
+
+The return code is the sum of all cp/mv return codes.
+EOT
+    }
+    keep=1
+    while getopts ":hcmv" opt; do
+        case $opt in
+            c) unset move && (( ++keep ));;
+            m) unset keep && (( ++move ));;
+            v) verbose="-v";;
+            h) usage;;
+            \?) usage >&2; return 1;;
+        esac
     done
+    shift "$((OPTIND-1))"
+    if (( keep > 0 )); then
+        while (( $# > 0 )); do
+            if islinux; then
+                cp $verbose -a "$1" "$1_$current_date"
+            elif isfreebsd; then
+                if [[ -d "$1" ]] && [[ "$1" == */ ]]; then
+                    echo "cowardly refusing to copy $1 's content; see cp(1)" >&2; return 1
+                else
+                    cp $verbose -a "$1" "$1_$current_date"
+                fi
+            else;
+                cp $verbose -pR "$1" "$1_$current_date"
+            fi
+            (( result += $? ))
+            shift
+        done
+    elif (( move > 0 )); then
+        while (( $# > 0 )); do
+            mv $verbose "$1" "$1_$current_date"
+            (( result += $? ))
+            shift
+        done
+    fi
+    return $result
 }
 
 #f5# cd to directoy and list files