diff bin/check-prerequisites.sh @ 153:38675dcea44f

Bring the stub generator into this repo (from piper-vamp-cpp)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/bin/check-prerequisites.sh	Wed Jun 14 10:06:30 2017 +0100
@@ -0,0 +1,73 @@
+#!/bin/bash
+
+set -eu
+
+mydir=$(dirname "$0")
+
+case "$mydir" in
+    /*) ;;
+    *) mydir=$(pwd)/"$mydir";;
+esac
+
+parent_dir=$(echo "$mydir/../..")
+
+sibling_dir() {
+    local name="$1"
+    local dir=$parent_dir/"$name"
+    local simplified=""
+    while true; do
+        simplified=$(echo "$dir" | sed 's,/[a-z][a-z-]*/../,/,')
+        simplified=$(echo "$simplified" | sed 's,/./,/,')
+        if [ "$simplified" = "$dir" ]; then break
+        else dir="$simplified"
+        fi
+    done
+    echo "$dir"
+}
+
+explain_and_exit() {
+    cat 1>&2 <<EOF
+
+    To build the examples and the generator program found here, you
+    will need the following sibling directories. (That is, other
+    repositories of code checked out in the same place locally as the
+    piper-vamp-js repository is.)
+
+    * vamp-plugin-sdk   - The Vamp plugin SDK and example plugins
+    * piper             - The Piper protocol schema
+    * piper-vamp-cpp    - C++ classes for Piper/Vamp adaptation
+    * vamp-test-plugin  - Vamp Test Plugin, used as one of our examples
+
+    You will also need the Emscripten compiler (em++) to build the
+    example modules, the node.js environment to test loading them,
+    and any further C/C++ libraries needed for the generator program
+    such as the Sord RDF store.
+
+EOF
+    exit 2
+}
+
+
+for sibling in vamp-plugin-sdk piper piper-vamp-cpp vamp-test-plugin ; do
+
+    dir=$(sibling_dir "$sibling")
+    
+    if [ ! -d "$parent_dir/$sibling" ]; then
+        echo 1>&2
+        echo "*** Failed to find sibling directory $sibling" 1>&2
+        echo "*** (expected in full path: $dir)" 1>&2
+        explain_and_exit
+    fi
+    
+done
+
+for program in em++ node ; do
+    if ! "$program" -v >/dev/null 2>&1 ; then
+        "$program" -v
+        echo 1>&2
+        echo "*** Failed to find or run required program $program" 1>&2
+        explain_and_exit
+    fi
+done
+
+