I'm downloading a RPM using wget and I want to check if the package is installed before I download it. I'm not using a RPM repo, so I can't just do
package { ...
ensure => installed
}
How can I do something like:
if HOW_TO_CHECK_IF_PACKAGE_X_IS_INSTALLED
... do wget etc.
Before someone asks, this didn't work for me: Puppet - test if a package already defined?
If you're downloading an RPM and installing it, you could do so like this:
package { 'foo':
ensure => installed,
provider => 'rpm',
source => 'http://example.com/foo.rpm',
}
The solution was a custom facter:
require"puppet"
module Puppet::Parser::Functions
newfunction(:package_installed, :type => :rvalue) do |args|
packageName = args[0]
return system "rpm --quiet -q #{packageName}"
end
end
Related
I need biomaRT but it is not installing. How do I fix this?
BiocManager::install("biomaRt")
'getOption("repos")' replaces Bioconductor standard repositories, see '?repositories' for details
replacement repositories:
CRAN: https://mirror.las.iastate.edu/CRAN
Bioconductor version 3.14 (BiocManager 1.30.16), R 4.1.3 (2022-03-10)
Warning message:
package(s) not installed when version(s) same as current; use force = TRUE to re-install: 'biomaRt'
This doesn't look like an error. The relevant part of the message is
package(s) not installed when version(s) same as current; use force = TRUE to re-install: 'biomaRt'
Essentially, this is saying "You've already got the biomaRt package installed and it's the same version as in Bioconductor, so you don't need to do anything."
You should be able to load biomaRt with: library(biomaRt).
I installed the timezone-series Haskell module using cabal install timezone-series-0.1.5.1.
I then defined a module named Main.hs that starts with:
import Data.Time.LocalTime.TimeZone.Series -- from timezone-series-0.1.5.1
when I run ghc Main.hs, GHC throws the following error:
/home/ubuntu/Main.hs:2:1: error:
Failed to load interface for ‘Data.Time.LocalTime.TimeZone.Olson’
I tried explicitly including the cabal directory in GHC's search path using:
ghc -i/home/ubuntu/.cabal/lib/x86_64-linux-ghc-8.0.2/timezone-olson-0.2.0-KqRNJj3zomR7zz2Yx6P5Oq/ Main.hs
This resulted in the correct path being searched, but GHC is only looking for files ending in the suffix ".hs":
Locations searched:
...
/home/ubuntu/.cabal/lib/x86_64-linux-ghc-8.0.2/timezone-olson-0.2.0-KqRNJj3zomR7zz2Yx6P5Oq/Data/Time/LocalTime/TimeZone/Series.hs
/home/ubuntu/.cabal/lib/x86_64-linux-ghc-8.0.2/timezone-olson-0.2.0-KqRNJj3zomR7zz2Yx6P5Oq/Data/Time/LocalTime/TimeZone/Series.lhs
/home/ubuntu/.cabal/lib/x86_64-linux-ghc-8.0.2/timezone-olson-0.2.0-KqRNJj3zomR7zz2Yx6P5Oq/Data/Time/LocalTime/TimeZone/Series.hsig
/home/ubuntu/.cabal/lib/x86_64-linux-ghc-8.0.2/timezone-olson-0.2.0-KqRNJj3zomR7zz2Yx6P5Oq/Data/Time/LocalTime/TimeZone/Series.lhsig
Cabal installed interface files instead however:
/home/ubuntu/.cabal/lib/x86_64-linux-ghc-8.0.2/timezone-olson-0.2.0-KqRNJj3zomR7zz2Yx6P5Oq/Data/Time/LocalTime/TimeZone/Olson.hi
From line 318 of GHC's source code it looks like GHC ignores "*.hi" files unless it is called in single-shot mode (with the -c flag). Is this correct? (See: https://github.com/ghc/ghc/blob/67a5a91ef5e61f3b3c84481d8a396ed48cd5d96e/compiler/GHC/Unit/Finder.hs)
How can I get GHC to import this module?
An help will be greatly appreciated!
My suggested ways of installing packages in order of my preference:
Make a cabal package and add timezone-series you want to install to the build-depends field as described in the cabal manual.
Use the experimental cabal-env tool to basically automate the process of point 3 below, but then with the global environment. This makes a new build-plan every time you install a new package, so it is like removing the package environment and building it again with all the old packages and the new package added to it. You can add specific constraints like this: cabal-env "timezone-series == 0.1.5.1".
Install a package into local package environment with cabal --package-env . --lib timezone-series. You can add as many packages as you want after the --lib option to install more than one package. If you later want to use a different set of packages simply remove the .ghc.environment.* file that is generated and rerun the installation with a new set of packages. GHC will automatically use these package environment files that are in the current or parent directories. You can specify specific constraints with the --constraint option like this: --constraint "timezone-series == 0.1.5.1".
Use cabal install --lib timezone-series to install it directly into the global environment (~/.ghc/x86_64-linux-8.0.2/environments/default), this will fail if a conflicting package was installed earlier. When you run into errors you can remove that package environment and try again.
Finally, I want to note that GHC 8.0.2 is quite old, so I would advise you to upgrade if you don't have a specific reason for using that version.
I need to create the nix package from a project stack with postgres template.
Basically it is the following: I have a virtual machine with NixOS and I need to portlet my project to another one with NixOS. For this I will use the nix copy command, but before I need to somehow "install" my project so that it is in /nix/store.
I tried to do the same looking at another issue posted "Generating a Nix package from a stack project".
come on. What I did was:
cd /home/ProjetoApp
stack new TesteYesod yesod-postgres
cd TestYesod
stack init --resolver lts-11.22
stack install yesod-bin --install-ghc
I added in stack.yaml:
nix
pure: true
enable: true
packages: [postgresql]
So far so good. I can compile and execute only stack. Then I was trying to generate a nix package. In stack.yaml I did:
nix
pure: true
enable: true
shell-file: default.nix
And in default.nix I did:
{nixpkgs ? import <nixpkgs> { }, ghc ? nixpkgs.ghc}:
with nixpkgs;
haskell.lib.buildStackProject {
name ="teste-yesod-1.0.0";
src = ./.;
buildInputs = [ postgresql ];
inherit ghc;
}
If I do:
nix build
Occurs:
builder for '/nix/store/rckhmkgrkb6nzn7dkqqldfdm8cilpya2-teste-yesod
1.0.0.drv' failed with exit code 1; last 5 log lines:
unpacking sources
unpacking source archive /nix/store/
n62hzn4igi1b7khksa6sp3cq8gk4h344-TesteYesod
source root is TestYesod
patching sources
configuring
[0 built (1 failed), 0.0 MiB DL]
error: build of '/nix/store/rckhmkgrkb6nzn7dkqqldfdm8cilpya2-teste-yesod-
1.0.0.drv' failed
If. How to instruct nix that the source is spread across multiple directories?
If you want a quick fix, the following should work:
{ nixpkgs ? import (builtins.fetchTarball {
url = "https://github.com/NixOS/nixpkgs/archive/d42ef371c9b1b532400b0f2820885e575f4f1617.tar.gz";
sha256 = "0irb4zb6hdgaah238244jk2xf63xfb20xy3plb1194pd4xbgdr3r";
}) {}
, ghc ? nixpkgs.ghc
}:
with nixpkgs;
haskell.lib.buildStackProject {
name ="TesteYesod";
src = ./.;
buildInputs = [ postgresql ];
inherit ghc;
}
What's the problem? It seems that in the current 18.09 release, buildStackProject is broken. The non-existent error message is caused by a subtly failing preConfigure script, which contains the following:
addStackArgsHook = ''
for pkg in ''${pkgsHostHost[#]} ''${pkgsHostBuild[#]} ''${pkgsHostTarget[#]}
do
[ -d "$pkg/lib" ] && \
export STACK_IN_NIX_EXTRA_ARGS+=" --extra-lib-dirs=$pkg/lib"
[ -d "$pkg/include" ] && \
export STACK_IN_NIX_EXTRA_ARGS+=" --extra-include-dirs=$pkg/include"
done
'';
In your case, stack is the last dependency to be processed in the loop (and perhaps in all buildStackProject invocations in 18.09, I'm not sure), but it contains no /lib or /include directory, so the exit code with which the preConfigure script exits is 1, and so the whole build process quits. This is just because of the shorthand &&, it would work if there was a proper if.
It is however fixed in master already (https://github.com/NixOS/nixpkgs/pull/53618), so simply using a newer nixpkgs should fix that problem. Pinning the nixpkgs is something you want to do anyway if you want to use Nix's replicability guarantees to the fullest, as you can't know you're using the same nixpkgs commit, so you may be using different versions of system packages.
(If you want to know how I debugged this - it seemed the problem was in the preConfigure step, so I took a look at the code in generic-stack-builder.nix, saw that preConfigure was overridable, copy-pasted the code from there into default.nix and added a set -x at the top. That showed me the problem above, and prompted me to go look at that file in master to see if there weren't changes since 18.09. Another workaround could be simply adding true to the preConfigure script if it wasn't already fixed in master, but that wasn't necessary.)
(Also, I've opened https://github.com/NixOS/nixpkgs/issues/55548 to backport the fix to 18.09.)
Unfortunately, the installation of the haskell package 'Euterpea' fails on NixOS:
The Nixpkgs manual states that all haskell packages registered on hackage (which the Euterpea package is) are included in the nix package manager and have to be installed like this:
nix-env -f "<nixpkgs>" -iA haskellPackages.Euterpea
After some downloading and compiling, the following error occurs, and the process is interrupted:
[ 7 of 46] Compiling Euterpea.IO.MIDI.MidiIO ( Euterpea/IO/MIDI/MidiIO.lhs, dist/build/Euterpea/IO/MIDI/MidiIO.o )
Euterpea/IO/MIDI/MidiIO.lhs:153:25:
Not in scope: ‘Heap.extractHead’
Euterpea/IO/MIDI/MidiIO.lhs:160:34: Not in scope: ‘Heap.head’
builder for ‘/nix/store/wc8d02s0kin4l0siwixlylssizfsrzgx-Euterpea-1.1.1.drv’ failed with exit code 1
error: build of ‘/nix/store/wc8d02s0kin4l0siwixlylssizfsrzgx-Euterpea-1.1.1.drv’ failed
Does anyone have an idea how to fix this?
The problem here is that Euterpea does not compile against the more-recent versions of its dependencies available in nixpkgs. Here is an expression that can succcessfully build Euterpea (tested on current nixpkgs unstable):
Write the following nix expression into a file called euterpea.nix:
# let's get nixpkgs into scope
with (import <nixpkgs> {});
let
lib = haskell.lib;
# build a "package set" (collection of packages) that has the correct versions of the dependencies
# needed by Euterpea
customHaskellPackages = haskellPackages.override (old: {
overrides = self: super: {
heap = self.callHackage "heap" "0.6.0" {};
PortMidi = self.callHackage "PortMidi" "0.1.5.2" {};
stm = self.callHackage "stm" "2.4.2" {};
};
});
in {
# this is a ghc wrapper that has only Euterpea as its visible packages
ghc = customHaskellPackages.ghcWithPackages (pkgs: [ pkgs.Euterpea ]);
# this is just the output of the build for Euterpea
pkg = customHackagePackages.Euterpea;
# for convenience, also expose the package set that we build against
pkgset = customHaskellPackages;
}
Then you can run the following commands:
$ nix-build euterpea.nix -A ghc # build a GHC with the Euterpea package included
/nix/store/mjlp6rxcsiv5w8ay1qp0lrj8m40r3cyl-ghc-8.0.1-with-packages
$ result/bin/ghci # result contains a GHC installation that has Euterpea, so we can run GHCI from it
GHCi, version 8.0.1: http://www.haskell.org/ghc/ :? for help
Loaded GHCi configuration from /home/.ghci
λ: import Euterpea
λ:
Leaving GHCi.
$ nix-env --install --file euterpea.nix -A ghc # we can also install this ghc into our user environment
installing ‘ghc-8.0.1-with-packages’
building path(s) ‘/nix/store/7jwrwxaxyig6hf747rsan5514gw7qi51-user-environment’
created 5840 symlinks in user environment
$
I'm currently trying to use pandoc (as a Haskell module, not as a program) to convert MediaWiki text to other formats.
Let's assume this program:
import Text.Pandoc.Readers.MediaWiki
main = do print "foo"
When using runghc to run it, I get the following error message:
pandock.hs:1:8:
Could not find module `Text.Pandoc.Readers.MediaWiki'
Use -v to see a list of the files searched for.
My first assumption was that pandoc was either not installed or incorrectly installed. Therefore I reinstalled it with --force-reinstalls
$ cabal install pandoc --reinstall
[...]
In order, the following will be installed:
pandoc-1.12.3.1 (reinstall) changes: old-time-1.1.0.1 added
[...]
[32 of 55] Compiling Text.Pandoc.Readers.MediaWiki ( src/Text/Pandoc/Readers/MediaWiki.hs, dist/build/Text/Pandoc/Readers/MediaWiki.o )
[...]
Installing library in
/home/uli/.cabal/lib/x86_64-linux-ghc-7.6.3/pandoc-1.12.3.1
Installing executable(s) in /home/uli/.cabal/bin
Registering pandoc-1.12.3.1...
Installed pandoc-1.12.3.1
The output of runghc -v pandock.hs is quite long, I assume the relevant part is:
*** Chasing dependencies:
Chasing modules from: *pandock.hs
pandock.hs:1:8:
Could not find module `Text.Pandoc.Readers.MediaWiki'
Locations searched:
Text/Pandoc/Readers/MediaWiki.hs
Text/Pandoc/Readers/MediaWiki.lhs
Failed, modules loaded: none.
However, both ~/.cabal/lib/x86_64-linux-ghc-7.6.3/pandoc-1.12.3.1/Text/Pandoc/Readers/Mediawiki/MediaWiki.hi and ~/.cabal/bin/pandoc exist. How can I make GHC properly recognize the cabal-installed package?
Any help will be appreciated!
When trying to reproduce this issue on other computers, only 2 out of 5 computers had this issue. On both of them I installed cabal packages in about the same way and order.
In retrospect I assume this issue arose because of some broken packages wreaking havoc:
$ ghc-pkg check
There are problems in package feed-0.3.9.2:
dependency "xml-1.3.13-dd52b1688e97a3c6cd0aa48dba7b153e" doesn't exist
There are problems in package hxt-9.3.1.3:
dependency "network-2.4.2.2-ea77cdf1bc747bc58308fdeb52745c4d" doesn't exist
There are problems in package hspec-1.8.1.1:
dependency "QuickCheck-2.6-409fcc32c191cd6e04afdebb15869820" doesn't exist
There are problems in package quickcheck-io-0.1.0:
dependency "QuickCheck-2.6-409fcc32c191cd6e04afdebb15869820" doesn't exist
There are problems in package regex-compat-0.95.1:
dependency "regex-base-0.93.2-2023953b859e6f91efe89733d2ef5421" doesn't exist
There are problems in package regex-posix-0.95.2:
dependency "regex-base-0.93.2-2023953b859e6f91efe89733d2ef5421" doesn't exist
There are problems in package hxt-9.3.1.2:
dependency "network-2.4.2.2-ea77cdf1bc747bc58308fdeb52745c4d" doesn't exist
The following packages are broken, either because they have a problem
listed above, or because they depend on a broken package.
feed-0.3.9.2
hxt-9.3.1.3
hspec-1.8.1.1
quickcheck-io-0.1.0
regex-compat-0.95.1
regex-posix-0.95.2
hxt-9.3.1.2
MissingH-1.2.0.2
yesod-test-1.2.1
Note that neither pandoc nor yaml (I installed it after asking the question and had the exact same issues as with pandoc) are listed there.
For users also having a similar problem, please ensure:
The package is installed and you're not inside any sandbox where the package is not installed.
In the directory where you're executing the test script, ensure that there is no Text/Pandoc folder (or equivalent, depending on the package causing the problem
Run your test script with runghc -v to check if it searches the proper directory
ghc-pkg list lists your package as installed, and no packages are broken (use ghc-pkg check to check)
I solved my problem by renaming ~/.cabal and ~/.ghc. Note that I did this lacking a proper solution, I think you should only do this as a last resort.