diff --git a/bbnurse b/bbnurse
index 29e5aae..1c2ca73 100755
--- a/bbnurse
+++ b/bbnurse
@@ -3,6 +3,97 @@
 #source /etc/nulib.sh || exit 1
 source "$(dirname -- "$0")/vendor/nulib/php/load.sh" || exit 1
 
+function copy_nurse() {
+    :
+}
+
+function copy_mature() {
+    local libname libdir path filename class
+    local srcdir srcpath srcpackage
+    local destdir destpath destpackage
+
+    local src="$1"; shift
+    [ -n "$src" ] || die "vous devez spécifier le fichier ou le package arrivant à maturation"
+
+    if [ -f "$src" ]; then
+        # fichier
+        setx src=abspath "$src"
+        [ "${src#$MYDIR/src/}" != "$src" ] || die "la source doit être dans nur-sery/src/"
+        src="${src#$MYDIR/src/}"
+        path="${src%/*}"
+        filename="${src##*/}"
+        class="${filename%.php}"
+    elif [ -d "$src" ]; then
+        # répertoire de package
+        setx src=abspath "$src"
+        [ "$src" == "$MYDIR/src" -o "${src#$MYDIR/src/}" != "$src" ] || die "la source doit être dans nur-sery/src/"
+        srcdir="$src"
+        path="${src#$MYDIR/src}"; path="${path#/}"
+    else
+        # package
+        src="${src//\\\\/\/}"
+        src="${src%/}"
+        [ -d "$MYDIR/src/$src" ] || die "la source doit être un package de nur-sery"
+        srcdir="$MYDIR/src/$src"
+        path="$src"
+    fi
+    if [ -n "$path" ]; then
+        srcpackage="nur/sery/$path"; srcpackage="${srcpackage//\//\\}"
+        destpackage="nulib/$path"; destpackage="${destpackage//\//\\}"
+    else
+        srcpackage='nur\sery'
+        destpackage='nulib'
+    fi
+
+    local dest="${1:-.}"; shift
+    setx dest=abspath "$dest"
+    if [[ "$dest" == */nulib ]]; then
+        libname=nulib
+        libdir="$dest"
+    elif [[ "$dest" == */nulib/* ]]; then
+        libname=nulib
+        libdir="${dest%%/nulib/*}/nulib"
+    else
+        die "seul la maturation vers nulib est supporté"
+    fi
+
+    case "$libname" in
+    nulib)
+        if [ -n "$path" ]; then
+            destdir="$libdir/php/src_${path%%/*}"
+        else
+            destdir="$libdir/php/src_base"
+        fi
+
+        if [ -n "$class" ]; then
+            # Maturation d'un seul fichier
+            die "TODO"
+        else
+            # Maturation de toute un package
+            pwd #XXX
+            einfo "$srcdir --> $destdir"
+            einfo "Maturation de $srcpackage vers $destpackage"
+            setx -a srcs=find "$srcdir" -type f
+            for src in "${srcs[@]}"; do
+                srcname="${src#$srcdir/}"
+                dest="$destdir/$srcname"
+                estep "${src#$srcdir/}"
+                mkdirof "$dest"
+                sed "s|${srcpackage//\\/\\\\}|${destpackage//\\/\\\\}|g" <"$src" >"$dest"
+            done
+        fi
+        ;;
+    esac
+}
+
+function update_nurse() {
+    :
+}
+
+function update_mature() {
+    :
+}
+
 action=update
 evolution=mature
 args=(
@@ -39,3 +130,4 @@ Pour chaque type d'évolution, il y a deux actions possibles:
 )
 parse_args "$@"; set -- "${args[@]}"
 
+"${action}_${evolution}" "$@"