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Dependency conflict for yesod-platform-1.2.10 #742

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mietek opened this Issue May 17, 2014 · 19 comments

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@mietek

mietek commented May 17, 2014

Installing alex and happy is required to install yesod-platform. yesod-platform-1.2.10 conflicts with one of the dependencies pulled in by alex-3.1.3 and happy-1.19.3.

Unfortunately, it is not possible to specify alex and happy as dependencies in yesod-platform.cabal, because Cabal does not manage executable-only packages properly:

  • Listing executable-only packages in build-tools causes Cabal to expect the executables to be installed, but not to install the packages. (cabal#220)
  • Listing executable-only packages in build-depends causes Cabal to install the packages, and to fail to recognise the packages have been installed. (cabal#779)

To reproduce, start with ghc-7.8.2 and cabal-install-1.20.0.1:

$ mkdir /tmp/yesod-platform-test

$ cd /tmp/yesod-platform-test

$ cabal sandbox init
Writing a default package environment file to
/private/tmp/yesod-platform-test/cabal.sandbox.config
Creating a new sandbox at /private/tmp/yesod-platform-test/.cabal-sandbox

$ cabal update
Downloading the latest package list from hackage.haskell.org

$ cabal install alex happy
Resolving dependencies...
Notice: installing into a sandbox located at
/private/tmp/yesod-platform-test/.cabal-sandbox
...
Installed happy-1.19.3
Installed alex-3.1.3

$ cabal install yesod-platform-1.2.10
Resolving dependencies...
cabal: Could not resolve dependencies:
trying: primitive-0.5.3.0/installed-488... (user goal)
next goal: yesod-platform (user goal)
rejecting: yesod-platform-1.2.10 (conflict:
primitive==0.5.3.0/installed-488..., yesod-platform => primitive==0.5.2.1)
rejecting: yesod-platform-1.2.9.3, 1.2.9.1, 1.2.9, 1.2.8.2, 1.2.8.1, 1.2.8,
1.2.7.2, 1.2.7.1, 1.2.7, 1.2.6.1, 1.2.6, 1.2.5.3, 1.2.5.2, 1.2.5.1, 1.2.5,
1.2.4.4, 1.2.4.3, 1.2.4.2, 1.2.4.1, 1.2.4, 1.2.3, 1.2.2, 1.2.1, 1.2.0.1,
1.2.0, 1.1.9.2, 1.1.9.1, 1.1.9, 1.1.8, 1.1.7.2, 1.1.7.1, 1.1.7, 1.1.6.1,
1.1.6, 1.1.5, 1.1.4.1, 1.1.4, 1.1.3, 1.1.2, 1.1.1, 1.1.0, 1.0.6.1, 1.0.6,
1.0.5, 1.0.4.2, 1.0.4.1, 1.0.4, 1.0.3.4, 1.0.3.3, 1.0.3.2, 1.0.2, 1.0.1,
1.0.0, 0.10.3, 0.10.2 (global constraint requires ==1.2.10)
Dependency tree exhaustively searched.
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Just curious -- what if you install alex, happy, and yesod-platform altogether in one invocation?

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pbrisbin commented May 17, 2014

Just curious -- what if you install alex, happy, and yesod-platform altogether in one invocation?

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mietek May 17, 2014

Installing them in one invocation does work:

$ cabal install alex happy yesod-platform-1.2.10 --dry-run
Resolving dependencies...
In order, the following would be installed (use -v for more details):
...
happy-1.19.3
...
primitive-0.5.2.1 (latest: 0.5.3.0)
...
alex-3.1.3
...
yesod-platform-1.2.10

Unfortunately, requiring these three packages to be installed in one invocation complicates automatic deployment of Yesod web applications.

mietek commented May 17, 2014

Installing them in one invocation does work:

$ cabal install alex happy yesod-platform-1.2.10 --dry-run
Resolving dependencies...
In order, the following would be installed (use -v for more details):
...
happy-1.19.3
...
primitive-0.5.2.1 (latest: 0.5.3.0)
...
alex-3.1.3
...
yesod-platform-1.2.10

Unfortunately, requiring these three packages to be installed in one invocation complicates automatic deployment of Yesod web applications.

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I guess my next question is then why does yesod-platform not just specify happy/alex as dependencies so that cabal install yesod-platform is all that's required.

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pbrisbin commented May 17, 2014

I guess my next question is then why does yesod-platform not just specify happy/alex as dependencies so that cabal install yesod-platform is all that's required.

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mietek May 17, 2014

As above, alex and happy are executable-only packages, which confuse Cabal.

mietek commented May 17, 2014

As above, alex and happy are executable-only packages, which confuse Cabal.

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Ah, I see. Apologies for missing that.

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pbrisbin commented May 17, 2014

Ah, I see. Apologies for missing that.

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mietek May 17, 2014

No problem. I have now updated the issue description to improve clarity.

mietek commented May 17, 2014

No problem. I have now updated the issue description to improve clarity.

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What happens if you follow the recommended invocation from the quickstart guide:

cabal install yesod-platform yesod-bin --max-backjumps=-1 --reorder-goals
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snoyberg commented May 18, 2014

What happens if you follow the recommended invocation from the quickstart guide:

cabal install yesod-platform yesod-bin --max-backjumps=-1 --reorder-goals
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mietek May 18, 2014

When starting with ghc-7.8.2 and cabal-install-1.20.0.1, the recommended invocation fails, because language-javascript-0.5.12 requires alex and happy, which are not included with ghc, only with the Haskell Platform.

$ cabal install yesod-platform yesod-bin --max-backjumps=-1 --reorder-goals
Resolving dependencies...
Notice: installing into a sandbox located at
/private/tmp/hello-yesod-platform/.cabal-sandbox
...
Failed to install language-javascript-0.5.12
Last 10 lines of the build log ( /private/tmp/hello-yesod-platform/.cabal-sandbox/logs/language-javascript-0.5.12.log ):
Configuring language-javascript-0.5.12...
setup-Simple-Cabal-1.18.1.3-x86_64-osx-ghc-7.8.2: The program happy version
>=1.18.5 is required but it could not be found.
...
cabal: Error: some packages failed to install:
hjsmin-0.1.4.6 depends on language-javascript-0.5.12 which failed to install.
language-javascript-0.5.12 failed during the configure step. The exception
was:
ExitFailure 1
yesod-platform-1.2.10 depends on language-javascript-0.5.12 which failed to
install.
yesod-static-1.2.2.5 depends on language-javascript-0.5.12 which failed to
install.

mietek commented May 18, 2014

When starting with ghc-7.8.2 and cabal-install-1.20.0.1, the recommended invocation fails, because language-javascript-0.5.12 requires alex and happy, which are not included with ghc, only with the Haskell Platform.

$ cabal install yesod-platform yesod-bin --max-backjumps=-1 --reorder-goals
Resolving dependencies...
Notice: installing into a sandbox located at
/private/tmp/hello-yesod-platform/.cabal-sandbox
...
Failed to install language-javascript-0.5.12
Last 10 lines of the build log ( /private/tmp/hello-yesod-platform/.cabal-sandbox/logs/language-javascript-0.5.12.log ):
Configuring language-javascript-0.5.12...
setup-Simple-Cabal-1.18.1.3-x86_64-osx-ghc-7.8.2: The program happy version
>=1.18.5 is required but it could not be found.
...
cabal: Error: some packages failed to install:
hjsmin-0.1.4.6 depends on language-javascript-0.5.12 which failed to install.
language-javascript-0.5.12 failed during the configure step. The exception
was:
ExitFailure 1
yesod-platform-1.2.10 depends on language-javascript-0.5.12 which failed to
install.
yesod-static-1.2.2.5 depends on language-javascript-0.5.12 which failed to
install.
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snoyberg May 19, 2014

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What I mean is: after installing happy and alex, what happens if you use the normal invocation?

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snoyberg commented May 19, 2014

What I mean is: after installing happy and alex, what happens if you use the normal invocation?

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mietek May 19, 2014

Then, depending on the value of avoid-reinstalls, Cabal either installs yesod-platform-1.2.9.3, or installs primitive-0.5.2.1, reinstalls tf-random-0.5 (to switch from depending on primitive-0.5.3.0 to primitive-0.5.2.1) and installs yesod-platform-1.2.10.

mietek commented May 19, 2014

Then, depending on the value of avoid-reinstalls, Cabal either installs yesod-platform-1.2.9.3, or installs primitive-0.5.2.1, reinstalls tf-random-0.5 (to switch from depending on primitive-0.5.3.0 to primitive-0.5.2.1) and installs yesod-platform-1.2.10.

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In that case, I'm not sure what else we can do in the Yesod world for this.

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snoyberg commented May 19, 2014

In that case, I'm not sure what else we can do in the Yesod world for this.

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mietek May 19, 2014

yesod-platform-1.2.10 has a constraint on primitive-0.5.2.1. Why not update this constraint to primitive-0.5.3.0, which is the version pulled in by installing alex-3.1.3?

In general, why not keep the constraints in yesod-platform always in sync with constraints resulting from installing the two executable-only packages needed to build yesod-platform?

mietek commented May 19, 2014

yesod-platform-1.2.10 has a constraint on primitive-0.5.2.1. Why not update this constraint to primitive-0.5.3.0, which is the version pulled in by installing alex-3.1.3?

In general, why not keep the constraints in yesod-platform always in sync with constraints resulting from installing the two executable-only packages needed to build yesod-platform?

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Because the goal of yesod-platform is to give a stable set of packages known to work together. It's merely an issue of timing: we don't want to have yesod-platform changing too rapidly, and I'm not able to produce and test a new version every time a dependency bumps.

That said, I don't know a problem with making a new release of yesod-platform now, it seems like a good time to do so.

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snoyberg commented May 20, 2014

Because the goal of yesod-platform is to give a stable set of packages known to work together. It's merely an issue of timing: we don't want to have yesod-platform changing too rapidly, and I'm not able to produce and test a new version every time a dependency bumps.

That said, I don't know a problem with making a new release of yesod-platform now, it seems like a good time to do so.

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OK, I've released a new yesod-platform.

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snoyberg commented May 20, 2014

OK, I've released a new yesod-platform.

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darthdeus May 21, 2014

Just out of curiosity, why isn't yesod init generating yesod-platform in the dependencies? When should it be used over specifying the dependencies explicitly and vice versa?

darthdeus commented May 21, 2014

Just out of curiosity, why isn't yesod init generating yesod-platform in the dependencies? When should it be used over specifying the dependencies explicitly and vice versa?

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@darthdeus This came up on the mailing list very recently. @gregwebs reminded me that, if we had placed yesod-platform in the dependencies, it would require installing all of those packages, even if the scaffolded site itself only needs a subset of them.

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snoyberg commented May 21, 2014

@darthdeus This came up on the mailing list very recently. @gregwebs reminded me that, if we had placed yesod-platform in the dependencies, it would require installing all of those packages, even if the scaffolded site itself only needs a subset of them.

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mietek May 29, 2014

Thanks. yesod-platform-1.2.11 works for me.

I do have one question: Why is cipher-des-0.0.6 a dependency of yesod-1.2.5.2, and not a dependency of yesod-platform-1.2.11, even though yesod-1.2.5.2 is a dependency of yesod-platform-1.2.11?

This is not a big deal, but it does mean that a sandbox prepared for yesod-platform-1.2.11 is not a strict superset of a sandbox prepared for yesod-1.2.5.2.

mietek commented May 29, 2014

Thanks. yesod-platform-1.2.11 works for me.

I do have one question: Why is cipher-des-0.0.6 a dependency of yesod-1.2.5.2, and not a dependency of yesod-platform-1.2.11, even though yesod-1.2.5.2 is a dependency of yesod-platform-1.2.11?

This is not a big deal, but it does mean that a sandbox prepared for yesod-platform-1.2.11 is not a strict superset of a sandbox prepared for yesod-1.2.5.2.

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Where do you see that dependency? cipher-des isn't a direct dependency of yesod, and I get a build plan on my system that doesn't include cipher-des:

$ cabal install --dry-run yesod-platform-1.2.11 --constraint 'cipher-des >= 1' --package-db=clear --package-db=global
Resolving dependencies...
In order, the following would be installed (use -v for more details):
HUnit-1.2.5.2
SHA-1.6.4
ansi-terminal-0.6.1.1
ansi-wl-pprint-0.6.7.1
asn1-types-0.2.3
base16-bytestring-0.1.1.6
base64-bytestring-1.0.0.1
byteable-0.1.1
byteorder-1.0.4
cereal-0.4.0.1
crypto-pubkey-types-0.4.2.2
cryptohash-0.11.4 (latest: 0.11.5)
data-default-class-0.0.1
data-default-instances-base-0.0.1
data-default-instances-containers-0.0.1
data-default-instances-old-locale-0.0.1
dlist-0.7.0.1
data-default-instances-dlist-0.0.1
data-default-0.5.3
entropy-0.2.2.4 (latest: 0.3)
file-embed-0.0.6 (latest: 0.0.7)
hspec-expectations-0.5.0.1
mmorph-1.0.3
monad-loops-0.4.2
mtl-2.1.3.1 (latest: 2.2.0.1)
exceptions-0.6.1
optparse-applicative-0.8.1 (latest: 0.9.0)
pem-0.2.2
primitive-0.5.3.0
random-1.0.1.1
pwstore-fast-2.4.1
safe-0.3.4
securemem-0.1.3
crypto-cipher-types-0.0.9
cipher-aes-0.2.7
cipher-rc4-0.1.4
setenv-0.1.1.1
silently-1.2.4.1
stm-2.4.3
async-2.0.1.5
stm-chans-3.0.0.2
stringsearch-0.3.6.5
syb-0.4.1
tagged-0.7.2
crypto-api-0.13
skein-1.0.9
text-1.1.1.3
asn1-encoding-0.8.1.3
asn1-parse-0.8.1
blaze-builder-0.3.3.2
blaze-markup-0.6.1.0
blaze-html-0.7.0.2
cookie-0.4.1.1
fast-logger-2.1.5
hashable-1.2.2.0
case-insensitive-1.2.0.0
http-types-0.8.4 (latest: 0.8.5)
mime-mail-0.4.5.2
mime-types-0.1.0.4
nats-0.2
parsec-3.1.5
network-2.5.0.0
path-pieces-0.1.3.1
scientific-0.3.2.1
attoparsec-0.11.3.4
css-text-0.1.2.1
email-validate-2.0.1
http-date-0.0.4
socks-0.5.4
system-filepath-0.4.11
system-fileio-0.3.13
tagsoup-0.13.1
tf-random-0.5
QuickCheck-2.7.5
quickcheck-io-0.1.1
hspec-1.9.5
transformers-base-0.4.2
monad-control-0.3.3.0
lifted-base-0.2.2.2
resourcet-1.1.2.2
simple-sendfile-0.2.14
unix-compat-0.4.1.1
unix-time-0.2.2
unordered-containers-0.2.4.0
semigroups-0.14 (latest: 0.15)
utf8-string-0.3.8
language-javascript-0.5.13
hjsmin-0.1.4.6
publicsuffixlist-0.1
vault-0.3.0.3
vector-0.10.9.1 (latest: 0.10.9.2)
aeson-0.7.0.6
crypto-random-0.0.7
cprng-aes-0.5.2
clientsession-0.9.0.3
crypto-numbers-0.2.3
crypto-pubkey-0.2.4
resource-pool-0.2.2.0
shakespeare-2.0.0.3
hamlet-1.2.0
shakespeare-css-1.1.0
shakespeare-i18n-1.1.0
shakespeare-js-1.3.0
shakespeare-text-1.1.0
void-0.6.1
conduit-1.1.2.1 (latest: 1.1.3)
attoparsec-conduit-1.1.0
blaze-builder-conduit-1.1.0
network-conduit-1.1.0
word8-0.0.4
x509-1.4.11
x509-store-1.4.4
x509-system-1.4.5
x509-validation-1.5.0
tls-1.2.7 (latest: 1.2.8)
connection-0.2.1
xml-types-0.3.4
xss-sanitize-0.3.5.2
yaml-0.8.8.2 (latest: 0.8.8.3)
yesod-routes-1.2.0.6
zlib-0.5.4.1
streaming-commons-0.1.2.4 (latest: 0.1.3)
conduit-extra-1.1.0.3
cryptohash-conduit-0.1.1
http-client-0.3.2.2 (latest: 0.3.3)
http-client-tls-0.2.1.1
http-conduit-2.1.2
monad-logger-0.3.6.1
persistent-1.3.1.1
esqueleto-1.4.1 (latest: 1.4.1.2)
persistent-template-1.3.1.3
wai-2.1.0.2 (latest: 2.1.0.3)
wai-logger-2.1.1
http-reverse-proxy-0.3.1.7
wai-test-2.0.1.2 (latest: 2.0.1.3)
warp-2.1.5.1 (latest: 2.1.5.2)
warp-tls-2.0.5
xml-conduit-1.2.0.1 (latest: 1.2.0.2)
tagstream-conduit-0.5.5.1
authenticate-1.3.2.8
html-conduit-1.1.0.5
zlib-conduit-1.1.0
wai-extra-2.1.1.1 (latest: 2.1.1.2)
wai-app-static-2.0.1
yesod-core-1.2.15.1
yesod-persistent-1.2.2.3
yesod-form-1.3.9
yesod-auth-1.3.0.5
yesod-1.2.5.2
yesod-auth-hashdb-1.3.0.1
yesod-static-1.2.3
yesod-test-1.2.1.5
yesod-platform-1.2.11
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snoyberg commented May 30, 2014

Where do you see that dependency? cipher-des isn't a direct dependency of yesod, and I get a build plan on my system that doesn't include cipher-des:

$ cabal install --dry-run yesod-platform-1.2.11 --constraint 'cipher-des >= 1' --package-db=clear --package-db=global
Resolving dependencies...
In order, the following would be installed (use -v for more details):
HUnit-1.2.5.2
SHA-1.6.4
ansi-terminal-0.6.1.1
ansi-wl-pprint-0.6.7.1
asn1-types-0.2.3
base16-bytestring-0.1.1.6
base64-bytestring-1.0.0.1
byteable-0.1.1
byteorder-1.0.4
cereal-0.4.0.1
crypto-pubkey-types-0.4.2.2
cryptohash-0.11.4 (latest: 0.11.5)
data-default-class-0.0.1
data-default-instances-base-0.0.1
data-default-instances-containers-0.0.1
data-default-instances-old-locale-0.0.1
dlist-0.7.0.1
data-default-instances-dlist-0.0.1
data-default-0.5.3
entropy-0.2.2.4 (latest: 0.3)
file-embed-0.0.6 (latest: 0.0.7)
hspec-expectations-0.5.0.1
mmorph-1.0.3
monad-loops-0.4.2
mtl-2.1.3.1 (latest: 2.2.0.1)
exceptions-0.6.1
optparse-applicative-0.8.1 (latest: 0.9.0)
pem-0.2.2
primitive-0.5.3.0
random-1.0.1.1
pwstore-fast-2.4.1
safe-0.3.4
securemem-0.1.3
crypto-cipher-types-0.0.9
cipher-aes-0.2.7
cipher-rc4-0.1.4
setenv-0.1.1.1
silently-1.2.4.1
stm-2.4.3
async-2.0.1.5
stm-chans-3.0.0.2
stringsearch-0.3.6.5
syb-0.4.1
tagged-0.7.2
crypto-api-0.13
skein-1.0.9
text-1.1.1.3
asn1-encoding-0.8.1.3
asn1-parse-0.8.1
blaze-builder-0.3.3.2
blaze-markup-0.6.1.0
blaze-html-0.7.0.2
cookie-0.4.1.1
fast-logger-2.1.5
hashable-1.2.2.0
case-insensitive-1.2.0.0
http-types-0.8.4 (latest: 0.8.5)
mime-mail-0.4.5.2
mime-types-0.1.0.4
nats-0.2
parsec-3.1.5
network-2.5.0.0
path-pieces-0.1.3.1
scientific-0.3.2.1
attoparsec-0.11.3.4
css-text-0.1.2.1
email-validate-2.0.1
http-date-0.0.4
socks-0.5.4
system-filepath-0.4.11
system-fileio-0.3.13
tagsoup-0.13.1
tf-random-0.5
QuickCheck-2.7.5
quickcheck-io-0.1.1
hspec-1.9.5
transformers-base-0.4.2
monad-control-0.3.3.0
lifted-base-0.2.2.2
resourcet-1.1.2.2
simple-sendfile-0.2.14
unix-compat-0.4.1.1
unix-time-0.2.2
unordered-containers-0.2.4.0
semigroups-0.14 (latest: 0.15)
utf8-string-0.3.8
language-javascript-0.5.13
hjsmin-0.1.4.6
publicsuffixlist-0.1
vault-0.3.0.3
vector-0.10.9.1 (latest: 0.10.9.2)
aeson-0.7.0.6
crypto-random-0.0.7
cprng-aes-0.5.2
clientsession-0.9.0.3
crypto-numbers-0.2.3
crypto-pubkey-0.2.4
resource-pool-0.2.2.0
shakespeare-2.0.0.3
hamlet-1.2.0
shakespeare-css-1.1.0
shakespeare-i18n-1.1.0
shakespeare-js-1.3.0
shakespeare-text-1.1.0
void-0.6.1
conduit-1.1.2.1 (latest: 1.1.3)
attoparsec-conduit-1.1.0
blaze-builder-conduit-1.1.0
network-conduit-1.1.0
word8-0.0.4
x509-1.4.11
x509-store-1.4.4
x509-system-1.4.5
x509-validation-1.5.0
tls-1.2.7 (latest: 1.2.8)
connection-0.2.1
xml-types-0.3.4
xss-sanitize-0.3.5.2
yaml-0.8.8.2 (latest: 0.8.8.3)
yesod-routes-1.2.0.6
zlib-0.5.4.1
streaming-commons-0.1.2.4 (latest: 0.1.3)
conduit-extra-1.1.0.3
cryptohash-conduit-0.1.1
http-client-0.3.2.2 (latest: 0.3.3)
http-client-tls-0.2.1.1
http-conduit-2.1.2
monad-logger-0.3.6.1
persistent-1.3.1.1
esqueleto-1.4.1 (latest: 1.4.1.2)
persistent-template-1.3.1.3
wai-2.1.0.2 (latest: 2.1.0.3)
wai-logger-2.1.1
http-reverse-proxy-0.3.1.7
wai-test-2.0.1.2 (latest: 2.0.1.3)
warp-2.1.5.1 (latest: 2.1.5.2)
warp-tls-2.0.5
xml-conduit-1.2.0.1 (latest: 1.2.0.2)
tagstream-conduit-0.5.5.1
authenticate-1.3.2.8
html-conduit-1.1.0.5
zlib-conduit-1.1.0
wai-extra-2.1.1.1 (latest: 2.1.1.2)
wai-app-static-2.0.1
yesod-core-1.2.15.1
yesod-persistent-1.2.2.3
yesod-form-1.3.9
yesod-auth-1.3.0.5
yesod-1.2.5.2
yesod-auth-hashdb-1.3.0.1
yesod-static-1.2.3
yesod-test-1.2.1.5
yesod-platform-1.2.11
@mietek

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mietek May 30, 2014

Right. Sorry, I should have answered my own question by looking at the constraints in yesod-platform.

The answer is: yesod-1.2.5.2 currently pulls in tls-1.2.8, which is newer than tls-1.2.7 constrained in yesod-platform-1.2.11. This newer tls pulls in the one additional dependency, cipher-des-0.0.6. Mystery solved.

mietek commented May 30, 2014

Right. Sorry, I should have answered my own question by looking at the constraints in yesod-platform.

The answer is: yesod-1.2.5.2 currently pulls in tls-1.2.8, which is newer than tls-1.2.7 constrained in yesod-platform-1.2.11. This newer tls pulls in the one additional dependency, cipher-des-0.0.6. Mystery solved.

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