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dash-haskell facilitates Haskell documentation in IDE(s) with the following qualities:
Documentation is stored in dash docsets on the filesystem, avoiding the need to query often inaccurate, version lagged information from a remote resource such as hackage, hoogle, or hayoo.
Resolved from Project Dependencies
With dash-haskell, one can build dash docsets from:
- packages listed as dependencies of a *.cabal file
- packages in a cabal sandbox
- an arbitrary package db
IDE plugins such as helm-dash allow for only specific docsets to be active. This means that when searching for an identifier, e.g. fromJust, only the packages you've built in your configuration are searched. Searches can then be further narrowed by module etc.
dash docsets are an open, easily assimilated standard, and are used across many IDE(s).
dash-haskell -c foo.cabal -s
builds all packages listed as dependencies in
foo.cabal, using atleast the cabal sandbox db
docsets/parsec-3.1.5.docset using the default db ordering (global, user).
Note: haddock documentation for the package must first be built prior to calling dash-haskell on it, e.g.
$ cabal install --only-dependencies --enable-documentation
dash-haskell tries to be as self-documenting as possible. Please see:
dash-haskell --help and
dash-haskell help [option|topic]
dash-haskell v188.8.131.52, a dash docset construction tool for Haskell packages Usage: dash-haskell [-o|--output <dir>] [-q|--quiet] [-c|--cabal <file.cabal>] [-x|--cabal-excludes ghc,lens..] [-s|--sandbox] [-n|--no-user] [--db <path-to-package-db>] [-d|--ordering user,sandbox..] [packages] additional help is available with "dash-haskell help <topic|option>" Available options: -h,--help Show this help text -o,--output <dir> the directory to write created docsets to -q,--quiet set to quiet output -c,--cabal <file.cabal> the cabal file to retrieve package dependencies from -x,--cabal-excludes ghc,lens.. limit package results from a cabal file source -s,--sandbox use cabal sandbox -n,--no-user don't source packages from user db --db <path-to-package-db> package db directory -d,--ordering user,sandbox.. ordering of user, dir, and sandbox db's packages a list of packages to specifically build, e.g. either-1.0.1 text http://www.github.com/jfeltz/dash-haskell (C) John P. Feltz 2014, 2015
$ cabal install dash-haskell
$ git clone http://www.github.com/jfeltz/dash-haskell $ cd dash-haskell $ cabal install
For best results, try to be version specific when providing package arguments, unless you're judicious about which packages are stored, for example, in your cabal sandbox db or ghc package db.
To use the generated docsets, you will need a plugin for your particular IDE which can access them.
dash-haskell is tested with the following for emacs:
- helm , a fuzzy finder plugin for emacs
- helm-dash , the essential extension to helm in order to lookup dash docsets
For limiting helm-dash to project specific docsets, the following also helps.
(defun activate-package-docsets (root) (progn (setq helm-dash-docsets-path root) (setq helm-dash-common-docsets (helm-dash-installed-docsets)) (message (format "activated %d docsets from: %s" (length helm-dash-common-docsets) root)) ))
Features slated for V2
- handle docset pre-builts and project synchronization
set pre-built criteria, pre-built skipping, project package sync.
and provide a
--rebuild to force rebuild of a docset
- version biasing
provide option to bias package version to highest when it is otherwise ambiguous
provide summary information to help users better understand which packages failed and succeeded
build docset directly from a package db .conf
build docsets directly from a package doc directory (containing the requisite
*.haddockinterface and html files)
Hirotomo Moriwaki : [email protected]
The major instigator of this project was Hirotomo Moriwaki's haddocset, with much of the early implementation of dash-haskell influenced by that code-base.
Rudi Grinberg : github
For patches, testing, and helping maintain compatibility of
dash-haskell-1.0.x.x with ghc changes
Author & Maintainer
John P. Feltz [email protected]