Added a first version of Snapcraft configuration file for Snap packaging

snap/snapcraft.yaml

@@ -0,0 +1,38 @@
+# Configuration file for YaCy Snap packaging with Snapcraft (see https://snapcraft.io/)
+name: yacy
+version: '1.921'
+summary: YaCy peer-to-peer search engine and intranet search appliance
+description: |
+  YaCy is a decentralized search engine software.
+  Its search results come from a network of independent peers, 
+  where no single entity decides what gets listed, or in which order results appear.
+  YaCy nodes can also be placed in intranet environment 
+  which makes YaCy a replacement for commercial enterprise search solutions. 
+
+grade: devel
+confinement: strict
+icon: htroot/env/grafics/yacy.png
+
+apps:
+  yacy:
+    command: sh "$SNAP/yacy/startYACY.sh" -f -s "$SNAP_USER_DATA"
+    # Interfaces authorizations requirements
+    # network-bind - to allow acting as an HTTP server and client
+    # desktop - to launch the default desktop navigator when starting (with xdg-open command) - not strictly necessary
+    # home - not strictly necessary but can be conventient for some features to have read/write access to files outside the snap data folders, notably 
+    #  - to index files in Intranet mode
+    #  - for index, dump, vocabulary import/export features
+    plugs: [network-bind, desktop, home]
+
+parts:
+  yacy:
+    plugin: ant
+    ant-build-targets: 
+      - clean
+      - dist
+    source: .
+    build-packages:
+      - openjdk-8-jdk
+    override-build: |
+      snapcraftctl build
+      tar -xzf RELEASE/yacy*.tar.gz -C "$SNAPCRAFT_PART_INSTALL/"