Re: [Haskell-cafe] Offline compilation with Stack/Cabal

Hi,

> Running `stack build --prefetch --dry-run` lists my local packages as
"Would build". How would I get source tarballs of my dependencies and how
would I build them on an offline machine?

I think that means you've already got all the source tarballs that you
would need.

On a reasonably clean machine (no $HOME/.stack directory at least), running
`stack setup` and then `stack build --prefetch --dry-run` does a bunch of
downloading (but nothing else), such that I can switch to aeroplane mode
and then run `stack build` without needing further network access. There's
a full transcript below. This certainly seems to imply that all the source
tarballs are available locally - I think they go somewhere in $HOME/.stack.
What I think this means is that if you do this then copy your $HOME/.stack
across to the isolated machine then that should be everything you need in
order to build everything.

HTH,

David



$ stack setup
Downloaded lts-3.6 build plan.
Fetching package index ...remote: Counting objects: 233532, done.
remote: Compressing objects: 100% (188553/188553), done.
remote: Total 233532 (delta 62098), reused 185305 (delta 42595),
pack-reused 0
Receiving objects: 100% (233532/233532), 55.26 MiB | 1.97 MiB/s, done.
Resolving deltas: 100% (62098/62098), completed with 1 local objects.
>From https://github.com/commercialhaskell/all-cabal-hashes
* [new tag] current-hackage -> current-hackage Fetched package index.
Populated index cache.
Preparing to install GHC to an isolated location.
This will not interfere with any system-level installation.
Downloaded ghc-7.10.2.
Installed GHC.
stack will use a locally installed GHC
For more information on paths, see 'stack path' and 'stack exec env'
To use this GHC and packages outside of a project, consider using:
stack ghc, stack ghci, stack runghc, or stack exec
$ stack build --prefetch --dry-run
asn1-parse-0.9.1: download
ansi-terminal-0.6.2.3: download
asn1-types-0.3.0: download
aeson-0.8.0.2: download
async-2.0.2: download
attoparsec-0.12.1.6: download
ansi-wl-pprint-0.6.7.3: download
base64-bytestring-1.0.0.1: download
blaze-builder-0.4.0.1: download
byteable-0.1.1: download
asn1-encoding-0.9.2: download
case-insensitive-1.2.0.4: download
cookie-0.4.1.6: download
cereal-0.4.1.1: download
connection-0.2.5: download
cryptonite-0.6: download
data-default-class-0.0.1: download
exceptions-0.8.0.2: download
dlist-0.7.1.2: download
http-client-tls-0.2.2: download
hourglass-0.2.9: download
http-client-0.4.23: download
hashable-1.2.3.3: download
memory-0.7: download
http-types-0.8.6: download
mime-types-0.1.0.6: download
network-2.6.2.1: download
mtl-2.2.1: download
old-locale-1.0.0.7: download
optparse-applicative-0.11.0.2: download
network-uri-2.6.0.3: download
parsec-3.1.9: download
pem-0.2.2: download
scientific-0.3.3.8: download
primitive-0.6: download
socks-0.5.4: download
stm-2.4.4: download
random-1.1: download
syb-0.5.1: download
text-1.2.1.3: download
streaming-commons-0.1.13: download
transformers-compat-0.4.0.4: download
unordered-containers-0.2.5.1: download
tls-1.3.2: download
x509-1.6.1: download
x509-validation-1.6.2: download
x509-store-1.6.1: download
vector-0.10.12.3: download
zlib-0.5.4.2: download
x509-system-1.6.1: download
No packages would be unregistered.

Would build:
aeson-0.8.0.2: database=snapshot, source=package index, after:
attoparsec-0.12.1.6,dlist-0.7.1.2,hashable-1.2.3.3,mtl-2.2.1,scientific-0.3.3.8,syb-0.5.1,text-1.2.1.3,unordered-containers-0.2.5.1,vector-0.10.12.3
ansi-terminal-0.6.2.3: database=snapshot, source=package index
ansi-wl-pprint-0.6.7.3: database=snapshot, source=package index, after:
ansi-terminal-0.6.2.3
asn1-encoding-0.9.2: database=snapshot, source=package index, after:
asn1-types-0.3.0,hourglass-0.2.9,mtl-2.2.1
asn1-parse-0.9.1: database=snapshot, source=package index, after:
asn1-encoding-0.9.2,asn1-types-0.3.0,mtl-2.2.1
asn1-types-0.3.0: database=snapshot, source=package index, after:
hourglass-0.2.9
async-2.0.2: database=snapshot, source=package index, after: stm-2.4.4
attoparsec-0.12.1.6: database=snapshot, source=package index, after:
scientific-0.3.3.8,text-1.2.1.3
autoharvest-0.1.0.0: database=local, source=/home/davidturner/autoharvest/,
after:
aeson-0.8.0.2,http-client-0.4.23,http-client-tls-0.2.2,http-types-0.8.6,optparse-applicative-0.11.0.2,text-1.2.1.3
base64-bytestring-1.0.0.1: database=snapshot, source=package index
blaze-builder-0.4.0.1: database=snapshot, source=package index, after:
text-1.2.1.3
byteable-0.1.1: database=snapshot, source=package index
case-insensitive-1.2.0.4: database=snapshot, source=package index, after:
hashable-1.2.3.3,text-1.2.1.3
cereal-0.4.1.1: database=snapshot, source=package index
connection-0.2.5: database=snapshot, source=package index, after:
byteable-0.1.1,data-default-class-0.0.1,network-2.6.2.1,socks-0.5.4,tls-1.3.2,x509-1.6.1,x509-store-1.6.1,x509-system-1.6.1,x509-validation-1.6.2
cookie-0.4.1.6: database=snapshot, source=package index, after:
blaze-builder-0.4.0.1,data-default-class-0.0.1,old-locale-1.0.0.7,text-1.2.1.3
cryptonite-0.6: database=snapshot, source=package index, after: memory-0.7
data-default-class-0.0.1: database=snapshot, source=package index
dlist-0.7.1.2: database=snapshot, source=package index
exceptions-0.8.0.2: database=snapshot, source=package index, after:
mtl-2.2.1,stm-2.4.4,transformers-compat-0.4.0.4
hashable-1.2.3.3: database=snapshot, source=package index, after:
text-1.2.1.3
hourglass-0.2.9: database=snapshot, source=package index
http-client-0.4.23: database=snapshot, source=package index, after:
base64-bytestring-1.0.0.1,blaze-builder-0.4.0.1,case-insensitive-1.2.0.4,cookie-0.4.1.6,data-default-class-0.0.1,exceptions-0.8.0.2,http-types-0.8.6,mime-types-0.1.0.6,network-2.6.2.1,network-uri-2.6.0.3,random-1.1,streaming-commons-0.1.13,text-1.2.1.3
http-client-tls-0.2.2: database=snapshot, source=package index, after:
connection-0.2.5,data-default-class-0.0.1,http-client-0.4.23,network-2.6.2.1,tls-1.3.2
http-types-0.8.6: database=snapshot, source=package index, after:
blaze-builder-0.4.0.1,case-insensitive-1.2.0.4,text-1.2.1.3
memory-0.7: database=snapshot, source=package index
mime-types-0.1.0.6: database=snapshot, source=package index, after:
text-1.2.1.3
mtl-2.2.1: database=snapshot, source=package index
network-2.6.2.1: database=snapshot, source=package index
network-uri-2.6.0.3: database=snapshot, source=package index, after:
parsec-3.1.9
old-locale-1.0.0.7: database=snapshot, source=package index
optparse-applicative-0.11.0.2: database=snapshot, source=package index,
after: ansi-wl-pprint-0.6.7.3,transformers-compat-0.4.0.4
parsec-3.1.9: database=snapshot, source=package index, after:
mtl-2.2.1,text-1.2.1.3
pem-0.2.2: database=snapshot, source=package index, after:
base64-bytestring-1.0.0.1,mtl-2.2.1
primitive-0.6: database=snapshot, source=package index
random-1.1: database=snapshot, source=package index
scientific-0.3.3.8: database=snapshot, source=package index, after:
hashable-1.2.3.3,text-1.2.1.3
socks-0.5.4: database=snapshot, source=package index, after:
cereal-0.4.1.1,network-2.6.2.1
stm-2.4.4: database=snapshot, source=package index
streaming-commons-0.1.13: database=snapshot, source=package index, after:
blaze-builder-0.4.0.1,network-2.6.2.1,random-1.1,stm-2.4.4,text-1.2.1.3,zlib-0.5.4.2
syb-0.5.1: database=snapshot, source=package index
text-1.2.1.3: database=snapshot, source=package index
tls-1.3.2: database=snapshot, source=package index, after:
asn1-encoding-0.9.2,asn1-types-0.3.0,async-2.0.2,cereal-0.4.1.1,cryptonite-0.6,data-default-class-0.0.1,memory-0.7,mtl-2.2.1,network-2.6.2.1,x509-1.6.1,x509-store-1.6.1,x509-validation-1.6.2
transformers-compat-0.4.0.4: database=snapshot, source=package index
unordered-containers-0.2.5.1: database=snapshot, source=package index,
after: hashable-1.2.3.3
vector-0.10.12.3: database=snapshot, source=package index, after:
primitive-0.6
x509-1.6.1: database=snapshot, source=package index, after:
asn1-encoding-0.9.2,asn1-parse-0.9.1,asn1-types-0.3.0,cryptonite-0.6,hourglass-0.2.9,memory-0.7,mtl-2.2.1,pem-0.2.2
x509-store-1.6.1: database=snapshot, source=package index, after:
asn1-encoding-0.9.2,asn1-types-0.3.0,cryptonite-0.6,mtl-2.2.1,pem-0.2.2,x509-1.6.1
x509-system-1.6.1: database=snapshot, source=package index, after:
mtl-2.2.1,pem-0.2.2,x509-1.6.1,x509-store-1.6.1
x509-validation-1.6.2: database=snapshot, source=package index, after:
asn1-encoding-0.9.2,asn1-types-0.3.0,byteable-0.1.1,cryptonite-0.6,data-default-class-0.0.1,hourglass-0.2.9,memory-0.7,mtl-2.2.1,pem-0.2.2,x509-1.6.1,x509-store-1.6.1
zlib-0.5.4.2: database=snapshot, source=package index

No executables to be installed.




On 24 November 2016 at 12:34, Jan von Löwenstein 
wrote:
>
> Thanks for all the responses.
>
> @Ivan
> I couldn't yet find an option in stack to point to local source tarballs.
Custom snapshots at least currently only support Hackage packages and that
was the closest I found.
>
> I briefly looked into `stack unpack `, that might indeed provide
a workable solution. Although options other than the list of packages would
have to be duplicated between my "normal" stack.yaml and the one I use to
enable offline compilation.
>
> @Tobias
> I already thought about that, yackage sounds like a package that would
help implement it. Not sure if I like that option very much though.
>
> @David
> Not sure if I get your proposal.
> Running `stack build --prefetch --dry-run` lists my local packages as
"Would build". How would I get source tarballs of my dependencies and how
would I build them on an offline machine?
>
> Best
> Jan
>
> David Turner  schrieb am Do., 24. Nov.
2016 um 10:13 Uhr:
>>
>> Hi,
>>
>> Does
>>
>>     stack build --prefetch --dry-run
>>
>> get close to what you want? That seems to download all the necessary
packages, and by using stack you get the ability to share compiled
dependencies between packages.
>>
>> Cheers,
>>
>> David
>>
>> On 24 November 2016 at 06:57, Jan von Löwenstein <
jan.loewenstein@gmail.com> wrote:
>>>
>>> Hi,
>>>
>>> Consider the following use case:
>>> I have to ship a Haskell application as source, bundled with its
dependencies and a script that can produce the binary on a machine without
internet connectivity.
>>>
>>> Is that possible with Stack or Cabal?
>>> Any pointers would be much appreciated.
>>>
>>> Ideally I would like to build each dependency package individually.
That way I could cache results per Haskell package and don't need to
rebuild dependencies until they actually change.
>>>
>>> Best
>>> Jan
>>>
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