Date: Fri, 10 May 2019 13:56:39 +0200 From: Palle Girgensohn <girgen@FreeBSD.org> To: Gleb Popov <arrowd@freebsd.org> Cc: "haskell@freebsd.org" <haskell@freebsd.org> Subject: Re: Haskell in FreeBSD ports Message-ID: <71996436-9812-4299-996D-E00A53898CAA@FreeBSD.org> In-Reply-To: <CALH631k8saixHQOTfqmfBS0yqg=yRRzwNJUYXqDW3j2xnbL09A@mail.gmail.com> References: <8839F753-5287-47DA-B61D-4C88DAE68D1B@FreeBSD.org> <CALH631kH2DwwMywDy_1G_S2LNeSoVOPZQuRaATP69mYW9PSsqQ@mail.gmail.com> <62B2EE72-1B64-460B-BE18-E7E8DE51B7A4@FreeBSD.org> <CALH631k8saixHQOTfqmfBS0yqg=yRRzwNJUYXqDW3j2xnbL09A@mail.gmail.com>
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> 10 maj 2019 kl. 13:54 skrev Gleb Popov <arrowd@freebsd.org>: >=20 >=20 >=20 > On Fri, May 10, 2019 at 2:50 PM Palle Girgensohn <girgen@freebsd.org = <mailto:girgen@freebsd.org>> wrote: >=20 >=20 >> 10 maj 2019 kl. 10:29 skrev Gleb Popov <arrowd@freebsd.org = <mailto:arrowd@freebsd.org>>: >>=20 >>=20 >>=20 >> On Fri, May 10, 2019 at 11:49 AM Palle Girgensohn <girgen@freebsd.org = <mailto:girgen@freebsd.org>> wrote: >> Hi! >>=20 >> A while ago, I started porting a haskell based project called = pgbackrest [https://pgbackrest.org <https://pgbackrest.org/>; = <https://pgbackrest.org/ <https://pgbackrest.org/>>]. I never really = finished at the the time, so I let it ly around on a repo of mine. = Yesterday I updated it and realized you're moving haskell stuff out of = the ports tree. Do you have any pointers to how to relate to this work, = and what I can do to get pgbackrest into the ports tree? I remember = there where more than 20 new haskell ports I had to add to get it = working. >>=20 >> Thanks >> Palle >>=20 >> I skimmed through https://github.com/pgbackrest/pgbackrest = <https://github.com/pgbackrest/pgbackrest>; repository and didn't find = any Haskell sources. >=20 > Haha, sorry, I was confused. postgrest = [https://github.com/PostgREST/postgrest = <https://github.com/PostgREST/postgrest>] is the name of the project. = :-) >=20 >> We don't keep ports for Haskell libraries anymore. That means, that = if pgbackrest is a Haskell library, you don't need to port it. Instead, = port an application that uses it. >=20 > So I port it sort of like a go application, by referencing all the = libraries in the application port? Where will the libs go? Any tips of = application ports using haskell that I can use as reference? >=20 > Yes, pretty much like Go. All library dependencies get linked = statically. I haven't yet documented the new way of creating ports, so = see comments file:///usr/ports/Mk/Uses/cabal.mk <http://cabal.mk/>=20 >=20 > In short, if a package is present on Hackage, you do following things: >=20 > 0. Install devel/hs-cabal-install > 1. Create a Makefile with bare minimum code required. Basically, = PORTNAME, PORTVERSION and USES=3D cabal. > 2. Invoke `make cabal-extract` for it. > 3. Invoke `make cabal-extract-deps`. As side effect this will build = the package. > 4. Invoke `make use-cabal`. This will generate USE_CABAL=3D line with = list of all ports dependencies. Put it into the port. > 5. Set `EXECUTABLES` variable if needed. > 6. You're set up. Try building the port usual way: `make makesum && = make && make stage-qa`. >=20 > If that last step didn't work due to missing dependencies, you = probably need to add revisions to some dependencies. Run `make = check-revs`, lookup packages on Hackage and add "_x" to appropriate = USE_CABAL item. >=20 > Take a look at devel/hs-git-annex for example - it is a complex port = using various cabal.mk <http://cabal.mk/>; features. >=20 Excellent, thanks! Palle
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