Travis: Separating Postgres & Mongo scripts (#6505)

* Attempting to fix Postgres issue

* Attempting to fix Postgres issue

trying to stop loop

* Attempting to fix Postgres

isolating postgres calls

* Attempting to fix Postgres issue

Separating jobs

* Attempting to fix postgres

* Attempting to fix postgres

* Attempting to fix postgres

Separating builds again

* Attempting to fix postgres

* Attempting to fix postgres

* Attempting to fix postgres

Just added back version 10, just in case it gets called

* Attempting to fix postgres

* Attempting to fix postgres

* Attempting to fix postgres

* Attempting to fix postgres

* Attempting to fix postgres

* Attempting to fix postgres

* Attempting to fix postgres

* Attempting to fix postgres

* Attempting to fix postgres

* Attempting to fix postgres

* Update .travis.yml

* Attempting to fix postgres

Removed postgres installs from unneeded test cases. Added the ability to test Postgres 10 and 11

* Attempting to fix postgres

* Attempting to fix postgres

* Attempting to fix postgres

* Attempting to fix postgres

Added test for postgres 12 that's allowed to fail

* Attempting to fix postgres

* Attempting to fix postgres 

Second round to see if it fails eventually

* Attempting to fix postgres

Round 3

* Attempting to fix postgres

Allowing all postgres to fail since it seems to occur randomly

* Temporary fix: separated mongo and postgres in travis

Now the mongo and postgres scripts are independent of each other to prevent the `ERROR:  could not access file "$libdir/postgis-2.4": No such file or directory` of showing up in the rest of the builds.

In addition, a test for postgres-12 has been added for future compatibility. Both the postgres-11 and postgres-12 have been added to `allow_failures` because the aforementioned error still creeps up. Important note is that the error has nothing to do with compatibility with postgres, but rather seems to be an error of how postgres (or really postgis) is being referenced in the respective travis distribution. Lastly, this error, if truly random should appear less than before as the postgres scripts aren't being run for every build as it previously was running.

* Allowing all postgres to fail

* Allowing multiple names to fail

* Removing preinstalled versions of postgres from list

Seeing if this gets rid of the random error

* Use postgres made for dist

* Second round

* Round 3

* Round 4

* Round 5

* Fixed issue with random postgres fail

Removing the native postgres builds at the right time seems to have fixed the random error from before.

The postgres tests are now not allowed to fail.

* Added back postgres 11 and 12 to allow_failures

The actual problem is fixed, but it seems there are some instability with some of the test cases for postgres that need to be addressed at another time.

The issues that pop up are: 
- Postgres-11
```Failures:
1) Cloud Code cloud jobs should set the message / success on the job
  Message:
    Expected undefined to equal 'hello'.
  Stack:
    Error: Expected undefined to equal 'hello'.
        at <Jasmine>
        at req.message.then.then.jobStatus (/home/travis/build/parse-community/parse-server/spec/CloudCode.spec.js:1571:46)
        at process._tickCallback (internal/process/next_tick.js:68:7)
```

- Postgres-12
``` 
Failures:
1) Cloud Code cloud jobs should set the message / success on the job
  Message:
    Expected undefined to equal 'hello'.
  Stack:
    Error: Expected undefined to equal 'hello'.
        at <Jasmine>
        at req.message.then.then.jobStatus (/home/travis/build/parse-community/parse-server/spec/CloudCode.spec.js:1571:46)
        at process._tickCallback (internal/process/next_tick.js:68:7)
  Message:
    Expected 'running' to equal 'succeeded'.
  Stack:
    Error: Expected 'running' to equal 'succeeded'.
        at <Jasmine>
        at promise.then.then.jobStatus (/home/travis/build/parse-community/parse-server/spec/CloudCode.spec.js:1580:45)
        at process._tickCallback (internal/process/next_tick.js:68:7)
```

* added travis scripts for postgres

* Setting up before_install and before_script

This should shrink the footprint of the file and and reduce the redundancy of calls for postgres.

Added support for testing of Postgres 9 and 10 in the scripts, not adding the tests though

* make scripts executable

* Update .travis.yml

* add sourcing in script

* trying to fix source

* fixing env var in script

* fixed ; near then

* Cleaning up travis file

removed old lines

* Finishing clean up

* Fixing allow_failures since "name" was removed

* Update .travis.yml

* Removed Postgres 11 from allow_failures

* I think using travis default postgres port of 5433 will allow us to not have to remove anything from the image

* Switching travis to postgres port 5433

* modifying script for test

* modifying script for test

* modifying script for test

* reverting back to working way with removing postgres from image

* Reverted back to removing postgres from image

* removing postgres 12

* removed postgres-12 from allow_failures

scripts/before_install_postgres.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+  
+set -e
+
+source ~/.nvm/nvm.sh
+
+echo "[SCRIPT] Before Install Script :: Setup Postgres ${POSTGRES_MAJOR_VERSION}"
+
+nvm install $NODE_VERSION
+nvm use $NODE_VERSION
+npm install -g greenkeeper-lockfile@1
+
+sudo sed -i 's/port = 5433/port = 5432/' /etc/postgresql/${POSTGRES_MAJOR_VERSION}/main/postgresql.conf
+
+if [[ $POSTGRES_MAJOR_VERSION -lt 11 ]]; then
+  # Setup postgres 9 or 10
+  sudo service postgresql stop
+    
+  # Remove correct version of postgres
+  if [[ $POSTGRES_MAJOR_VERSION -lt 10 ]]; then
+    sudo apt-get remove -q 'postgresql-10.*'
+  else
+    sudo apt-get remove -q 'postgresql-9.*'
+  fi
+
+  sudo service postgresql start ${POSTGRES_MAJOR_VERSION}
+
+else 
+
+  # Setup postgres 11 or higher
+  sudo cp /etc/postgresql/{10,${POSTGRES_MAJOR_VERSION}}/main/pg_hba.conf
+  sudo service postgresql stop
+  # Remove previous versions of postgres
+  sudo apt-get remove -q 'postgresql-9.*' 'postgresql-10.*'
+  sudo service postgresql start ${POSTGRES_MAJOR_VERSION}
+fi

scripts/before_script_postgres.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+  
+set -e
+
+echo "[SCRIPT] Before Script :: Setup Parse DB for Postgres ${POSTGRES_MAJOR_VERSION}"
+
+node -e 'require("./lib/index.js")'
+
+psql -v ON_ERROR_STOP=1 --username "postgres" --dbname "${POSTGRES_DB}" <<-EOSQL
+    CREATE DATABASE parse_server_postgres_adapter_test_database;
+    \c parse_server_postgres_adapter_test_database;
+    CREATE EXTENSION postgis;
+    CREATE EXTENSION postgis_topology;
+EOSQL
+