Fix race condition (#10)

* Fix race condition

* Add check for GITHUB_TOKEN env var

.travis.yml

@@ -1,5 +1,3 @@
-if: tag IS blank
-
 matrix:
   include:
     - os: linux

check_tags.sh

@@ -1,12 +1,50 @@
 #!/bin/bash
 
-if git rev-parse $LATEST_MS_TAG >/dev/null 2>&1
-then
-    echo "Latest MS tag ${LATEST_MS_TAG} already exists in VSCodium. Bail"
-else
-    echo "New MS tag found, continuing build"
-    git config --local user.name "Travis CI"
-    git config --local user.email "builds@travis-ci.com"
-    git tag $LATEST_MS_TAG
+GITHUB_RESPONSE=$(curl -s -H "Authorization: token $GITHUB_TOKEN" https://api.github.com/repos/vscodium/vscodium/releases/tags/$LATEST_MS_TAG)
+echo "Github response: ${GITHUB_RESPONSE}"
+VSCODIUM_ASSETS=$(echo $GITHUB_RESPONSE | jq '.assets')
+echo "VSCodium assets: ${VSCODIUM_ASSETS}"
+
+# if we just don't have the github token, get out fast
+if [ "$GITHUB_TOKEN" != "" ]; then
+  if [ "$VSCODIUM_ASSETS" != "null" ]; then
+    if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then
+      HAVE_MAC=$(echo $VSCODIUM_ASSETS | jq 'map(.name) | contains(["zip"])')
+      if [[ "$HAVE_MAC" != "true" ]]; then
+        echo "Building on Mac because we have no ZIP"
+        export SHOULD_BUILD="yes"
+      fi
+    else
+      HAVE_RPM=$(echo $VSCODIUM_ASSETS | jq 'map(.name) | contains(["rpm"])')
+      HAVE_DEB=$(echo $VSCODIUM_ASSETS | jq 'map(.name) | contains(["deb"])')
+      HAVE_TAR=$(echo $VSCODIUM_ASSETS | jq 'map(.name) | contains(["tar.gz"])')
+      if [[ "$HAVE_RPM" != "true" ]]; then
+        echo "Building on Linux because we have no RPM"
+        export SHOULD_BUILD="yes"
+      fi
+      if [[ "$HAVE_DEB" != "true" ]]; then
+        echo "Building on Linux because we have no DEB"
+        export SHOULD_BUILD="yes"
+      fi
+      if [[ "$HAVE_TAR" != "true" ]]; then
+        echo "Building on Linux because we have no TAR"
+        export SHOULD_BUILD="yes"
+      fi
+      if [[ "$SHOULD_BUILD" != "yes" ]]; then
+        echo "Already have all the Linux builds"
+      fi
+    fi
+  else
+    echo "Release assets do not exist at all, continuing build"
     export SHOULD_BUILD="yes"
-fi
+    if git rev-parse $LATEST_MS_TAG >/dev/null 2>&1
+    then
+      export TRAVIS_TAG=$LATEST_MS_TAG
+    else
+      git config --local user.name "Travis CI"
+      git config --local user.email "builds@travis-ci.com"
+      git tag $LATEST_MS_TAG
+    fi
+  fi
+fi
+

install_deps.sh

@@ -5,5 +5,6 @@ if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then
   brew install yarn --without-node
   brew install jq zip
 else
+  sudo apt-get update
   sudo apt-get install libx11-dev libxkbfile-dev libsecret-1-dev fakeroot rpm
 fi