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91710bba58
While debugging issues with HLS, Reed Mullanix noticed that we don't use relative paths. This leads to problems when using HLS + Emacs due to a bug in `lsp-mode` which prevents it from finding the correct project root. However, it is still a good practice to use relative paths in TH for other reasons, including being able to import these modules in GHCI. This PR should make it so HLS-1.0 & emacs provide type inference, imports, etc., in all modules in our codebase. GitOrigin-RevId: 5f53b9a7ccf46df1ea7be94ff0a5c6ec861f4ead
27 lines
1.1 KiB
Haskell
27 lines
1.1 KiB
Haskell
-- | A module that defines the current catalog version and nothing else. This is necessary to
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-- circumvent the unfortunate “GHC stage restriction,” which prevents us from using a binding in a
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-- compile-time splice unless it is defined in a different module. The actual migration code is in
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-- "Hasura.Server.Migrate".
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module Hasura.Server.Migrate.Version
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( latestCatalogVersion
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, latestCatalogVersionString
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) where
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import Hasura.Prelude
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import qualified Data.Text as T
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import qualified Language.Haskell.TH.Syntax as TH
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import Data.FileEmbed (embedStringFile, makeRelativeToProject)
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-- | The current catalog schema version. We store this in a file
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-- because we want to append the current verson to the catalog_versions file
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-- when tagging a new release, in @tag-release.sh@.
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latestCatalogVersion :: Integer
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latestCatalogVersion =
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$(do let s = $(makeRelativeToProject "src-rsr/catalog_version.txt" >>= embedStringFile)
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TH.lift (read s :: Integer))
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latestCatalogVersionString :: Text
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latestCatalogVersionString = T.pack $ show latestCatalogVersion
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