fix : install a dep for snaps (#1617)

* fix : install the missing package

Fix for the failing builds on Travis due to EONENT spawn error.

* fix : update the name to the correct package

* Revert "Remove `snap` target"

This reverts commit a8ce50508a.

* fix : add a ppa and install snapcraft

* fix : auto continue ppa adding

* update : install snapcraft only on linux

.travis.yml

@@ -21,12 +21,14 @@ addons:
       - xz-utils
       - rpm
       - bsdtar
+      - snapd
 
 before_install:
   - mkdir -p /tmp/git-lfs && curl -L https://github.com/github/git-lfs/releases/download/v1.2.1/git-lfs-$([ "$TRAVIS_OS_NAME" == "linux" ] && echo "linux" || echo "darwin")-amd64-1.2.1.tar.gz | tar -xz -C /tmp/git-lfs --strip-components 1 && /tmp/git-lfs/git-lfs pull
   - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then export DISPLAY=:99.0; sh -e /etc/init.d/xvfb start; sleep 3; fi
   - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew update; fi
   - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew install yarn; fi
+  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo add-apt-repository ppa:snappy-dev/tools-proposed -y && sudo apt update && sudo apt install snapcraft; fi
 
 install:
   - yarn

package.json

@@ -76,7 +76,8 @@
       "target": [
         "deb",
         "AppImage",
-        "rpm"
+        "rpm",
+        "snap"
       ]
     },
     "win": {