[tools] add source_desp_cp.sh: add a script to extract cpp and hpp fr…

…om a target

tools/source_deps_cp.sh

@@ -0,0 +1,46 @@
+#!/usr/bin/env bash
+set -eu
+set -o pipefail
+
+if [[ "${DEBUG:-0}" = '1' ]]; then
+    set -x
+fi
+
+dest=redemption_source
+
+if (( $# == 0 )) || [[ "$1" = '-h' || "$1" = '--help' ]]; then
+    echo "Copy .cpp and .hpp in '$dest' from a bjam target
+
+        $0 targets...
+
+    Ex: $0 libscytale" 2>&1
+    exit
+fi
+
+# extract hpp/cpp
+typeset -A dirset sources
+while read l ; do
+    if [[ $l =~ ^[a-zA-Z0-9_/]+'.o: '(.*) ]]; then
+        for f in ${BASH_REMATCH[1]}; do
+            # check duplicate
+            if [[ ! -v sources[$f] ]]; then
+                sources[$f]=1
+                dirset[${f%/*}]+="$f "
+            fi
+        done
+    fi
+done < <(bjam "$@" cxxflags='-MM -MF -' -a ||:)
+
+rm -r $dest
+
+# create new arbo
+dirs=("${!dirset[@]}")
+for i in "${!dirs[@]}"; do
+    dirs[$i]=$dest/${dirs[$i]}
+done
+mkdir -p ${dirs[@]}
+
+# copy files
+for dir in "${!dirset[@]}"; do
+    cp ${dirset[$dir]} $dest/$dir
+done