* memo for 8th Kernel/VM expedition

[lab.git] / TipAndDoc / .bin / cmpdir

diff --git a/TipAndDoc/.bin/cmpdir b/TipAndDoc/.bin/cmpdir
index f8f546a..45d474c 100755 (executable)
--- a/TipAndDoc/.bin/cmpdir
+++ b/TipAndDoc/.bin/cmpdir
@@ -4,6 +4,23 @@ if [ $# -lt 2 ]; then
     echo "Usage: $0 directory1 directory2"
     exit 1
 fi
+if [ $# -eq 3 ]; then
+    [ -d "$1/$3" ] && [ -d "$2/$3" ] &&
+        exit
+    [ ! -e "$1/$3" ] && [ ! -e "$2/$3" ] &&
+        echo "$0: something wrong abount '$3'" >&2 && exit
+    [ -e "$1/$3" ] && [ ! -e "$2/$3" ] &&
+        echo "Only in '$1': '$3'" >&2 && exit
+    [ ! -e "$1/$3" ] && [ -e "$2/$3" ] &&
+        echo "Only in '$2': '$3'" >&2 && exit
+    [ -f "$1/$3" ] && [ -d "$2/$3" ] &&
+        echo "'$1/$3' is a regular file but '$2/$3' is a directory" >&2 && exit
+    [ -d "$1/$3" ] && [ -f "$2/$3" ] &&
+        echo "'$1/$3' is a directory but '$2/$3' is a regular file" >&2 && exit
+    
+    cmp -s "$1/$3" "$2/$3" || echo "$1/$3" "$2/$3" are differ >&2
+    exit
+fi
 if [ -d "$1" -a -d "$2" ]; then
     echo "$0: start comparing '$1' and '$2'" >&2
 fi
@@ -14,22 +31,14 @@ trap "rm -- '$list' '$tmp'" EXIT
 
 wc=$PWD
 cd "$1"
-find ./ -print0 >> "$tmp"
+find -print0 >> "$tmp"
 cd $wc
 
 cd "$2"
-find ./ -print0 >> "$tmp"
+find -print0 >> "$tmp"
 cd $wc
 
 sort -z "$tmp" | uniq -z > "$list"
 
-comppath () {
-    [ ! -e "$1/$3" ] && [ ! -e "$2/$3" ] &&
-        (echo "$0: something wrong abount '$3'" >&2; return)
-    [ -e "$1/$3" ] && [ ! -e "$2/$3" ] &&
-        (echo "Only in '$1': '$3'" >&2; return)
-    [ ! -e "$1/$3" ] && [ -e "$2/$3" ] &&
-        (echo "Only in '$2': '$3'" >&2; return)
-}
 
-xargs -a "$list" -0 -n 1 -I entry cmp "$1/entry" "$2/entry"
+xargs -a "$list" -0 -n 1 -I entry $0 "$1" "$2" "entry"