hiedb: Generates a references DB from .hie files

[ bsd3, development, library, program ] [ Propose Tags ]

Tool and library to index and query a collection of .hie files

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Versions [faq],,,
Change log CHANGELOG.md
Dependencies algebraic-graphs, ansi-terminal, array, base (>=4.12 && <4.15), bytestring, containers, directory, extra, filepath, ghc (>=8.6), ghc-paths, hie-compat, hiedb, lucid, mtl, optparse-applicative, sqlite-simple, text [details]
License BSD-3-Clause
Copyright Zubin Duggal
Author Zubin Duggal
Maintainer zubin.duggal@gmail.com
Category Development
Bug tracker https://github.com/wz1000/HieDb/issues
Source repo head: git clone https://github.com/wz1000/HieDb
Uploaded by wz1000 at 2021-01-27T14:04:22Z
Distributions Arch:, NixOS:
Executables hiedb
Downloads 442 total (201 in the last 30 days)
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Status Hackage Matrix CI
Docs available [build log]
Last success reported on 2021-01-27 [all 1 reports]


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HIE DB - A tool to index and query .hie files



  • Recent version of GHC 8.8/HEAD which includes support for .hie files
  • cabal >=


$ cabal install hiedb


Generating .hie files

Compile any package with ghc options -fwrite-ide-info and optionally, -hiedir <dir>. This will generate .hie files and save them in <dir>


$ hiedb -D <db-loc> index <hiedir>

You can omit <db-loc>, in which case it will default to the environment variable HIEDB, or if that is not defined, $XDG_DATA_DIR/default_$DBVERSION.hiedb


  • Looking up references for a name(value/data constructor):
    $ hiedb -D <db-loc> name-refs <NAME> [MODULE]
  • Looking up references for a type:
    $ hiedb -D <db-loc> type-refs <NAME> [MODULE]

MODULE is the module the name was originaly defined in.

  • Looking up references for a symbol at a particular location:
    $ hiedb -D -<db-loc> point-refs (-f|--hiefile HIEFILE) SLINE SCOL [ELINE] [ECOL]  
    $ hiedb -D -<db-loc> point-refs MODULE [-u|--unit-id UNITID] SLINE SCOL [ELINE] [ECOL]

You can either lookup references for a Module that is already indexed, or lookup references for a point in a .hie file directly, which will be (re)indexed.