Recreate dbt_utils specs with require_dbt_version

[jtcohen6]

Created programmatically using: dbt-labs/hubcap#146

In order to test: dbt-labs/dbt-core#5651

# packages.yml
packages:
  - package: dbt-labs/dbt_utils
    version: 0.6.5

$ export DBT_PACKAGE_HUB_URL="https://deploy-preview-1770--flamboyant-mcclintock-92ba2d.netlify.app/"
$ dbt deps
15:57:07  Running with dbt=1.3.0-b1
15:57:09  Encountered an error:
Could not find a matching compatible version for package dbt-labs/dbt_utils
  Requested range: =0.6.5, =0.6.5
  Compatible versions: ['0.0.1', '0.1.0', '0.1.1', '0.1.2', '0.1.3', '0.1.4', '0.1.5', '0.1.6', '0.1.7', '0.1.8', '0.1.9', '0.1.10', '0.1.11', '0.1.12', '0.1.13', '0.1.14', '0.1.15', '0.1.16', '0.1.17', '0.1.18', '0.1.19', '0.1.20', '0.1.21', '0.1.22', '0.1.23', '0.1.24', '0.1.25', '0.2.0', '0.2.1', '0.2.2', '0.2.3', '0.2.4', '0.2.5', '0.3.0', '0.4.0', '0.4.1', '0.5.0', '0.8.0', '0.8.1', '0.8.2', '0.8.3', '0.8.4', '0.8.5', '0.8.6']
  (Not shown: versions incompatible with installed version of dbt-core)

(All those very old versions of dbt-utils are considered "compatible" because they do not define require-dbt-version.)

[dbeatty10]

I'm seeing three cases:

1. No require-dbt-version within dbt_project.yml:
   • Ex. "require_dbt_version": [],
2. Lower and upper bounds for require-dbt-version within dbt_project.yml:
   • Ex. "require_dbt_version": [">=0.18.0", "<0.19.0"],
3. Lower bound for require-dbt-version within dbt_project.yml:
   • Ex. "require_dbt_version": ">=0.14.0",

The first two have a list/array. The last has just a string. Is that the intent? I'm guessing "yes" because both strings and lists are supported for require-dbt-version.

Side question out of curiosity: are lists/CSV limited to two items for require-dbt-version? Or can it have more than that too?

[jtcohen6]

The first two have a list/array. The last has just a string. Is that the intent? I'm guessing "yes" because both strings and lists are supported for require-dbt-version.

Yes! The way we've documented this is, you can provide a single version requirement as a string. As soon as you need multiple, they should be in a list of strings.

Side question out of curiosity: are lists/CSV limited to two items for require-dbt-version? Or can it have more than that too?

In theory, you can have as many as you want. You don't generally need more than two to define a range. E.g. this is redundant:

require-dbt-version: [">=0.18.0", "<1.4.0", ">1.0.0"]

For pip, you can exclude specific entries via !=, and there is sometimes a point to doing that. But it looks like we don't support this syntax just yet:

require-dbt-version: [">=0.18.0", "<1.4.0", "!=1.0.0"]

dbt.exceptions.DbtProjectError: Runtime Error
  "!=1.0.0" is not a valid semantic version.

[jtcohen6]

Closing in favor of #1779, which is the "real" version of this (though at risk of getting stale)