P2 Tooling Installation via nix for AnyLinux™ (any Linux Distribution)

__red____red__ Posts: 468
edited 2019-02-10 - 01:18:52 in Propeller 2
Greetings.

tl;dr - if you want to go straight to installation - scroll down!

Update: see below for upgrade instructions...


What:
nix is a package manager whose primary advantage is that it DOES NOT POLLUTE your existing OS. All application files / executables etc live in one directory tree which means that removing it and any applications that it manages is as simple as deleting that one directory.

So What:
As nix manages ALL of the dependencies, it will run on ANY Linux OS regardless of age and configuration. With the exception of one command, its use is entirely done as an unprivileged user. You can even make applications visible to single shell sessions only such that they disappear when your shell exits!

Now What
See Installation Below:


ChangeLog:
2019-02-09: POTENTIAL BREAKING CHANGE
2019-02-09: I have moved spin2sim (includes fastspin), openspin, and spinsim out of the propeller-gcc package as they were at fixed (and old) versions. To get those same tools, you need to install their separate packages. If you are upgrading from this point on, please upgrade propeller-gcc before installing the opensim, spin2cpp, and spinsim packages.

2019-01-24: Bumped p2gcc to 2019-01-23r1 (fcfed297ab9f63c050ee2c436bb9b74abdb4f0d0)
2019-01-19: Bumped p2gcc to 2019-01-18r0 and propeller-gcc to 2018-04-14r2
2019-01-13: Bumped p2gcc to 2019-01-13r0
2019-01-12: nix will now download binary packages instead of compiling everything locally.
2019-01-12: Versions bumped to: propeller-gcc: "2018-04-14r1", p2gcc: "2019-01-12r1", spin2cpp: "2018-11-03r0", spinsim: "2018-12-06r0";

Packaging Notes
1. We do not honor the P2GCC_LIBDIR environmental variable but instead set the value to the location of the lib/ directory.
2. propeller-gcc includes its own version of spinsim and spin2cpp. As propeller-gcc includes 'pinned' versions (and maybe for good reasons I don't know about yet) I let propeller-gcc install its version. We probably shouldn't do that, but I need to make sure before I start modifying what is in the 'standard' package.

Installation
[nixdemo@ubuntut0:~] $ bash <(curl https://nixos.org/nix/install)
Note: a multi-user installation is possible. See https://nixos.org/nix/manual/#sect-multi-user-installation
performing a single-user installation of Nix...
directory /nix does not exist; creating it by running 'mkdir -m 0755 /nix && chown nixdemo /nix' using sudo
[sudo] password for nixdemo:
copying Nix to /nix/store.................................
initialising Nix database...
Nix: creating /home/nixdemo/.nix-profile
installing 'nix-2.2.1'
building '/nix/store/jkcbkr60gzcmz6bk9y4j4bhlx8qcqcyz-user-environment.drv'...
created 6 symlinks in user environment
unpacking channels...
created 2 symlinks in user environment
modifying /home/nixdemo/.profile...

Installation finished!  To ensure that the necessary environment
variables are set, either log in again, or type

  . /home/nixdemo/.nix-profile/etc/profile.d/nix.sh

in your shell.
[nixdemo@ubuntut0:~] $ . /home/nixdemo/.nix-profile/etc/profile.d/nix.sh
[nixdemo@ubuntut0:~] $ nix-env -iA cachix -f https://cachix.org/api/v1/install
unpacking 'https://cachix.org/api/v1/install'...
installing 'cachix-0.1.3'
these paths will be fetched (9.88 MiB download, 47.89 MiB unpacked):
  /nix/store/86kmx16flgixkzf22gaga8lxdds2wiw2-ncurses-6.1-20181027
  /nix/store/frvzsnzrw8baq58vb2zhqjkrkm3x0pxc-gmp-6.1.2
  /nix/store/idq4dzxj0ylmh16vm3hyv25s2dz1w6kc-zlib-1.2.11
  /nix/store/im2lxq8pz0l6qb4wx25hiqnv0d1lbcsb-xz-5.2.4
  /nix/store/mrfcv8ipiksfdrx3xq7dvcrzgg2jdfsw-glibc-2.27
  /nix/store/x3jacyl2lp46wcd6n9qyn07rhafnsp1q-gcc-7.3.0-lib
  /nix/store/xdbc2dja9dn6yrbm9ln8245cxynm5qhb-cachix-0.1.3
copying path '/nix/store/mrfcv8ipiksfdrx3xq7dvcrzgg2jdfsw-glibc-2.27' from 'https://cache.nixos.org'...
copying path '/nix/store/x3jacyl2lp46wcd6n9qyn07rhafnsp1q-gcc-7.3.0-lib' from 'https://cache.nixos.org'...
copying path '/nix/store/86kmx16flgixkzf22gaga8lxdds2wiw2-ncurses-6.1-20181027' from 'https://cache.nixos.org'...
copying path '/nix/store/frvzsnzrw8baq58vb2zhqjkrkm3x0pxc-gmp-6.1.2' from 'https://cache.nixos.org'...
copying path '/nix/store/im2lxq8pz0l6qb4wx25hiqnv0d1lbcsb-xz-5.2.4' from 'https://cache.nixos.org'...
copying path '/nix/store/idq4dzxj0ylmh16vm3hyv25s2dz1w6kc-zlib-1.2.11' from 'https://cache.nixos.org'...
copying path '/nix/store/xdbc2dja9dn6yrbm9ln8245cxynm5qhb-cachix-0.1.3' from 'https://cache.nixos.org'...
building '/nix/store/vkpic61rfqphsxllp4m1wad12qa024s4-user-environment.drv'...
created 22 symlinks in user environment
[nixdemo@ubuntut0: ~] $ cachix use redvers
Configured https://redvers.cachix.org binary cache in /home/nixdemo/.config/nix/nix.conf
[nixdemo@ubuntut0:~] $ mkdir -p .config/nixpkgs/overlays
[nixdemo@ubuntut0:~] $ cd .config/nixpkgs/overlays/
[nixdemo@ubuntut0:~/.config/nixpkgs/overlays] $ git clone  https://github.com/redvers/parallax-tooling
Cloning into 'parallax-tooling'...
remote: Enumerating objects: 51, done.
remote: Counting objects: 100% (51/51)
remote: Counting objects: 100% (51/51), done.
[nixdemo@ubuntut0:~/.config/nixpkgs/overlays] $ nix-env -i p2gcc
installing 'p2gcc-2019-01-12r1'
these paths will be fetched (0.08 MiB download, 0.37 MiB unpacked):
  /nix/store/slxljvzw1a8hgqnkap7yz5z34dq2d0q6-p2gcc-2019-01-12r1
copying path '/nix/store/slxljvzw1a8hgqnkap7yz5z34dq2d0q6-p2gcc-2019-01-12r1' from 'https://redvers.cachix.org'...
building '/nix/store/hg585gay00f0rs7mwl94g0xrsczmpsj6-user-environment.drv'...
created 327 symlinks in user environment
nixdemo@ubuntut0: ~/.config/nixpkgs/overlays] $ p2gcc
usage: p2gcc [options] file [file...]
  options are
  -c      - Do not run the linker
  -v      - Enable verbose mode
  -d      - Enable debug mode
  -r      - Run after linking
  -t      - Run terminal emulator
  -T      - Run terminal emulator in PST mode
  -k      - Keep intermediate files
  -s      - Run simulutor
  -o file - Set output file name
  -p port - Port used for loading
[nixdemo@ubuntut0:~/.config/nixpkgs/overlays] $ nix-env -i propeller-gcc
installing 'propeller-gcc-2018-04-14r1'
these paths will be fetched (74.08 MiB download, 369.81 MiB unpacked):
  /nix/store/22lrlr8d1d0dymy29jfpgmksfx1p5kc6-glibc-2.27-bin
  /nix/store/5l7mynximjv4jl6wm22bwzclabggxswi-propeller-gcc-2018-04-14r1
  /nix/store/6dywfq0s7crkl012wbkp6sjq9wgzklwy-expat-2.2.6-dev
  /nix/store/b2xkfmhfa4l4fznwqr4xz6vy97qzq250-flex-2.6.4
  /nix/store/c90akqjk2lk9r18wvxnkvd07j2nnl3f1-linux-headers-4.18.3
  /nix/store/g3laz2ssygn0nllgndqn64qi3phsijsh-gnum4-1.4.18
  /nix/store/p7j7qg5cri229ihf8nllwjhzgbvgx5d0-gcc-7.3.0
  /nix/store/psqblh5bsgkbkhn4r648pgjw5rq4npkv-glibc-2.27-dev
copying path '/nix/store/c90akqjk2lk9r18wvxnkvd07j2nnl3f1-linux-headers-4.18.3' from 'https://cache.nixos.org'...
copying path '/nix/store/6dywfq0s7crkl012wbkp6sjq9wgzklwy-expat-2.2.6-dev' from 'https://cache.nixos.org'...
copying path '/nix/store/22lrlr8d1d0dymy29jfpgmksfx1p5kc6-glibc-2.27-bin' from 'https://cache.nixos.org'...
copying path '/nix/store/g3laz2ssygn0nllgndqn64qi3phsijsh-gnum4-1.4.18' from 'https://cache.nixos.org'...
copying path '/nix/store/psqblh5bsgkbkhn4r648pgjw5rq4npkv-glibc-2.27-dev' from 'https://cache.nixos.org'...
copying path '/nix/store/b2xkfmhfa4l4fznwqr4xz6vy97qzq250-flex-2.6.4' from 'https://cache.nixos.org'...
copying path '/nix/store/p7j7qg5cri229ihf8nllwjhzgbvgx5d0-gcc-7.3.0' from 'https://cache.nixos.org'...
copying path '/nix/store/5l7mynximjv4jl6wm22bwzclabggxswi-propeller-gcc-2018-04-14r1' from 'https://redvers.cachix.org'...
building '/nix/store/p2cj0p96zjm53y28x0sjagzn2sv1h87m-user-environment.drv'...
created 425 symlinks in user environment

Testing

Write the following (simple) C program (foo.c):
#include "stdio.h"

int main() {
   sleep(10);
   printf("Hello World\n");
}

Compile and test it in the simulator like this:
[nixdemo@ubuntut0:~$] p2gcc  -v -t -s foo.c -o foo
propeller-elf-gcc -mcog -Os -m32bit-doubles -S foo.c
s2pasm -p/nix/store/slxljvzw1a8hgqnkap7yz5z34dq2d0q6-p2gcc-2019-01-12r1/lib/prefix.spin2 foo
p2asm -c -o foo.spin2
p2link /nix/store/slxljvzw1a8hgqnkap7yz5z34dq2d0q6-p2gcc-2019-01-12r1/lib/prefix.o -v foo.o -o foo /nix/store/slxljvzw1a8hgqnkap7yz5z34dq2d0q6-p2gcc-2019-01-12r1/lib/stdio.a /nix/store/slxljvzw1a8hgqnkap7yz5z34dq2d0q6-p2gcc-2019-01-12r1/lib/stdlib.a /nix/store/slxljvzw1a8hgqnkap7yz5z34dq2d0q6-p2gcc-2019-01-12r1/lib/string.a
Found offset of 12 for symbol ___files of type 04 at location 5f4
spinsim -b -t foo
Hello World

... and to run on the REAL hardware:
[red@apophenia:~/projects/testing-propellergcc]$ loadp2 -p /dev/ttyUSB0 -t foo
[ Entering terminal mode.  Press ESC to exit. ]                                                                                                                                                                                                                                                                                                
Hello World


Upgrades

To upgrade, you need to update the overlay as follows:
cd ~/.config/nixpkgs/overlays/parallax-tooling
git pull

nix-env -i propeller-gcc
nix-env -i p2gcc

As before, these files should be copied from cache and not locally compiled.

To remove the previous versions:
nix-collect-garbage

Comments

  • Sorry - the 'spoiler' tag doesn't seem to function in my browser so I split the command and output by using quote instead.
  • I'm surprised it doesn't compile the tools locally. How to update when Dave or Eric bug fixes?

    "... peers into the actual workings of a quantum jump for the first time. The results
    reveal a surprising finding that contradicts Danish physicist Niels Bohr's established view
    —the jumps are neither abrupt nor as random as previously thought."
  • evanh wrote: »
    I'm surprised it doesn't compile the tools locally.

    If you want it to always compile locally, just don't execute the cachix command as that's the command that enables the binary caching.
    How to update when Dave or Eric bug fixes?

    I'm tracking them in the repo so as updates get pushed them them, those changes should update too. I'll document how this works when I see the next set of code updates hit.

    The very abridged version of a simple local version bump:

    Edit the file pkgs/packagename/default.nix. For example, for p2gcc:
       version = "2019-01-12r1";
        name = "p2gcc-${version}";
    
        buildInputs = [ propeller-gcc ];
    
        src = fetchFromGitHub {
          owner = "davehein";
          repo  = "p2gcc";
          rev   = "2d7fcd554bbb700bfd8fd49ade01b5b386c44f9f";
          sha256 = "10ind8d6v7islyfjng9wjy0vmk9lbqp70jca8lq6s4c96b3smbcn";
        };
    

    version = date of the last push and the r# is there in case of updates to dependencies.
    rev = last git commit.
    sha256 = checksum of the code download from github.

    When you make those edits, it will go ahead and compile all the things.
  • Here's an example - I just bumped p2gcc: https://github.com/redvers/parallax-tooling/commit/99d58997d34a4054151d0cc7babc6cdd7f7b58a7

    Here's how the upgrade looks (maybe I should write some simple shellscripts to make this easier?)
    nixdemo@ubuntut0:~$ cd .config/nixpkgs/overlays/parallax-tooling/
    nixdemo@ubuntut0:~/.config/nixpkgs/overlays/parallax-tooling$ git pull
    remote: Enumerating objects: 9, done.
    remote: Counting objects: 100% (9/9), done.
    remote: Compressing objects: 100% (2/2), done.
    remote: Total 5 (delta 2), reused 5 (delta 2), pack-reused 0
    Unpacking objects: 100% (5/5), done.
    From https://github.com/redvers/parallax-tooling
       dc64538..99d5899  master     -> origin/master
    Updating dc64538..99d5899
    Fast-forward
     pkgs/p2gcc/default.nix | 6 +++---
     1 file changed, 3 insertions(+), 3 deletions(-)
    nixdemo@ubuntut0:~/.config/nixpkgs/overlays/parallax-tooling$ cd
    

    Query the version updates:
    nixdemo@ubuntut0:~$ nix-env -qc
    cachix-0.1.3                = 0.1.3
    git-2.19.2                  = 2.19.2
    nix-2.2.1                   > 2.2pre6526_9f99d624
    p2gcc-2019-01-12r1          < 2019-01-13r0
    propeller-gcc-2018-04-14r1  = 2018-04-14r1
    

    Do the upgrade:
    nixdemo@ubuntut0:~$ nix-env -i p2gcc
    replacing old 'p2gcc-2019-01-12r1'
    installing 'p2gcc-2019-01-13r0'
    these paths will be fetched (0.08 MiB download, 0.37 MiB unpacked):
      /nix/store/gv64cmyf4xq86q87hnf0wrpad27aj0dp-p2gcc-2019-01-13r0
    copying path '/nix/store/gv64cmyf4xq86q87hnf0wrpad27aj0dp-p2gcc-2019-01-13r0' from 'https://redvers.cachix.org'...
    building '/nix/store/9shmrs9f7yxrq4avp5a5l1vj6papk6sl-user-environment.drv'...
    created 425 symlinks in user environment
    

    Done.
  • samuellsamuell Posts: 301
    edited 2019-01-17 - 01:55:08
    Hi,

    Is there any way to lean out the "/nix" directory? When I ran "nix-env -i p2gcc", it took a good time compiling (lots and lots of files) and that directory now takes up 2GB of space. It even compiled grep.

    Kind regards, Samuel Lourenço
  • samuell wrote: »
    Is there any way to lean out the "/nix" directory?

    yes:
    nix-collect-garbage
    
    When I ran "nix-env -i p2gcc", it took a good time compiling (lots and lots of files) and that directory now takes up 2GB of space. It even compiled grep.

    This I'm really curious about because you should have been able to pull everything from cache.

    What hardware / OS are you running?

    Thanks,


    Red

  • Writing 2G takes time with or without a cache!
  • Mark_T wrote: »
    Writing 2G takes time with or without a cache!

    Agreed - it shouldn't be anywhere near that size.
  • Lots of small files on a file system designed for large files will be very wasteful.
  • Mark_T wrote: »
    Lots of small files on a file system designed for large files will be very wasteful.

    Sure, but like I said his machine shouldn't be compiling anything as all of the package definitions he's using should be in cache.
  • __red__ wrote: »
    samuell wrote: »
    Is there any way to lean out the "/nix" directory?

    yes:
    nix-collect-garbage
    
    When I ran "nix-env -i p2gcc", it took a good time compiling (lots and lots of files) and that directory now takes up 2GB of space. It even compiled grep.

    This I'm really curious about because you should have been able to pull everything from cache.

    What hardware / OS are you running?

    Thanks,


    Red
    Thanks Red. That worked!

    Answering to your question, I'm using a VM with Kubuntu 18.04 LTS, 64bit. The VM manager is VirtualBox. However, since my virtual RAM was limited to 2GB, the "nix-env -i p2gcc" step failed. I had to extend the RAM to 4GB temporarily and try again.

    Kind regards, Samuel Lourenço
  • __red____red__ Posts: 468
    edited 2019-01-18 - 01:49:00
    samuell wrote: »
    Thanks Red. That worked!

    Answering to your question, I'm using a VM with Kubuntu 18.04 LTS, 64bit. The VM manager is VirtualBox. However, since my virtual RAM was limited to 2GB, the "nix-env -i p2gcc" step failed. I had to extend the RAM to 4GB temporarily and try again.

    Kind regards, Samuel Lourenço

    I'm going to set up the same VM here and test this - I can't think of any reason why it would force a compilation.

    I'll let you know if I can replicate.

    Thanks,


    Red

    EDIT: It's installing now...

  • Huh, that is weird. I'm able to replicate here. Going to try and determine why and upload a fix for you.

    (it's actually propeller-gcc which is a dependency of p2gcc that's causing the issue - I'll know why shortly).

    I shall return!
  • __red__ wrote: »
    Huh, that is weird. I'm able to replicate here. Going to try and determine why and upload a fix for you.

    (it's actually propeller-gcc which is a dependency of p2gcc that's causing the issue - I'll know why shortly).

    I shall return!
    Thanks! I'll be available to do some testing if you need me to.

    Kind regards, Samuel Lourenço
  • samuell wrote: »
    Thanks! I'll be available to do some testing if you need me to.

    Kind regards, Samuel Lourenço

    Okey-dokey,

    Nuke your /nix directory from orbit and:
    bash <(curl https://nixos.org/nix/install)
    nix-env -iA cachix -f https://cachix.org/api/v1/install
    cachix use redvers
    
    nix-env -i propeller-gcc
    nix-env -i p2gcc
    

    I'm not entirely sure why this build differs but I'm going to find out. This should get you moving in the meantime.

    Thanks,


    Red

  • samuell wrote: »
    Thanks! I'll be available to do some testing if you need me to.

    I just bumped it due to changes in p2gcc to include these changes:
    commit 387977bc4fdf9a9a70fe2442a33d01731ecbce34
    Author: davehein <davehein@swbell.net>
    Date:   Fri Jan 18 19:24:45 2019 -0600
    
        Changed terminal exit character from ESC to Ctrl-].  Reverted back to just opening serial port when it is specified, and do not check version.
    
    commit d5d8c86e524bc6a998bd688ffef2b3e2f91227fe
    Author: davehein <davehein@swbell.net>
    Date:   Fri Jan 18 18:29:01 2019 -0600
    
        Added ptra, ptrb, pa and pb to the list of register names.
    
  • samuellsamuell Posts: 301
    edited 2019-01-20 - 06:01:25
    __red__ wrote: »
    samuell wrote: »
    Thanks! I'll be available to do some testing if you need me to.

    Kind regards, Samuel Lourenço

    Okey-dokey,

    Nuke your /nix directory from orbit and:
    bash <(curl https://nixos.org/nix/install)
    nix-env -iA cachix -f https://cachix.org/api/v1/install
    cachix use redvers
    
    nix-env -i propeller-gcc
    nix-env -i p2gcc
    

    I'm not entirely sure why this build differs but I'm going to find out. This should get you moving in the meantime.

    Thanks,


    Red
    Worked very well and it was quick to do this time. I saw no compilations during the installation. Thanks!
    __red__ wrote: »
    samuell wrote: »
    Thanks! I'll be available to do some testing if you need me to.

    I just bumped it due to changes in p2gcc to include these changes:
    commit 387977bc4fdf9a9a70fe2442a33d01731ecbce34
    Author: davehein <davehein@swbell.net>
    Date:   Fri Jan 18 19:24:45 2019 -0600
    
        Changed terminal exit character from ESC to Ctrl-].  Reverted back to just opening serial port when it is specified, and do not check version.
    
    commit d5d8c86e524bc6a998bd688ffef2b3e2f91227fe
    Author: davehein <davehein@swbell.net>
    Date:   Fri Jan 18 18:29:01 2019 -0600
    
        Added ptra, ptrb, pa and pb to the list of register names.
    
    The terminal still asks for and accepts ESC, although now it seems to accept Ctrl+] as well.

    Kind regards, Samuel Lourenço
  • Updated to the latest version:
    red@kubuntu:~$ nix-env -i p2gcc
    replacing old 'p2gcc-2019-01-13r0'
    installing 'p2gcc-2019-01-23r1'
    these paths will be fetched (0.09 MiB download, 0.48 MiB unpacked):
      /nix/store/clg9fr8ai3wg7nyzbyjd28vdg4xa3dr5-p2gcc-2019-01-23r1
    copying path '/nix/store/clg9fr8ai3wg7nyzbyjd28vdg4xa3dr5-p2gcc-2019-01-23r1' from 'https://redvers.cachix.org'...
    building '/nix/store/9hm871k10fw2skn36r8wv9vhwnkx5pgf-user-environment.drv'...
    created 224 symlinks in user environment
    
  • Updated to the latest versions:
    red@kubuntu:~/.config/nixpkgs/overlays/parallax-tooling$ nix-env -iA nixpkgs.p2gcc
    replacing old 'p2gcc-2019-01-23r1'
    installing 'p2gcc-2019-02-08r0'
    these paths will be fetched (0.10 MiB download, 0.54 MiB unpacked):
      /nix/store/s5lklc86dzj17vlq8r3g3c2yyn9cwmim-p2gcc-2019-02-08r0
    copying path '/nix/store/s5lklc86dzj17vlq8r3g3c2yyn9cwmim-p2gcc-2019-02-08r0' from 'https://redvers.cachix.org'...
    building '/nix/store/1v1zg5paijcn7f9lnxj814r1hb02p4g0-user-environment.drv'...
    created 234 symlinks in user environment
    
  • UPDATE

    I am currently re-factoring the propeller-gcc package to remove openspin, spinsim, and spin2cpp from it. The reason being that the propeller-gcc package has old versions tagged and, as a user you may want to run more recent versions.

    When the work is completed I'll add full docs above.
  • Refactored - Upgrade should look like this:

    Update the overlay:
    red@kubuntu:~/.config/nixpkgs/overlays/parallax-tooling$ git pull
    remote: Enumerating objects: 13, done.
    remote: Counting objects: 100% (13/13), done.
    remote: Compressing objects: 100% (2/2), done.
    remote: Total 7 (delta 4), reused 7 (delta 4), pack-reused 0
    Unpacking objects: 100% (7/7), done.
    From https://github.com/redvers/parallax-tooling
       64bc174..d5c502d  master     -> origin/master
    Updating 64bc174..d5c502d
    Fast-forward
     pkgs/propeller-gcc/default.nix | 13 +++++++------
     pkgs/spinsim/default.nix       |  4 ++--
     2 files changed, 9 insertions(+), 8 deletions(-)
    

    Update propeller-gcc:
    red@kubuntu:~/.config/nixpkgs/overlays/parallax-tooling$ nix-env -iA nixpkgs.propeller-gcc
    replacing old 'propeller-gcc-2018-04-14r1'
    installing 'propeller-gcc-2018-04-14r3'
    these paths will be fetched (37.66 MiB download, 229.80 MiB unpacked):
      /nix/store/3q8mlm4knizf759flbw6af51qkxhn4w4-propeller-gcc-2018-04-14r3
    copying path '/nix/store/3q8mlm4knizf759flbw6af51qkxhn4w4-propeller-gcc-2018-04-14r3' from 'https://redvers.cachix.org'...
    building '/nix/store/2wjfb4ds01dns4wzz3nd2g642c8dmwf0-user-environment.drv'...
    created 231 symlinks in user environment
    

    Update p2gcc:
    red@kubuntu:~/.config/nixpkgs/overlays/parallax-tooling$ nix-env -iA nixpkgs.p2gcc
    replacing old 'p2gcc-2019-02-08r0'
    installing 'p2gcc-2019-02-08r0'
    these paths will be fetched (0.10 MiB download, 0.54 MiB unpacked):
      /nix/store/85x7asdpx95j5vnyjknkb7kv9pjz9lhy-p2gcc-2019-02-08r0
    copying path '/nix/store/85x7asdpx95j5vnyjknkb7kv9pjz9lhy-p2gcc-2019-02-08r0' from 'https://redvers.cachix.org'...
    building '/nix/store/1qn15vlm22wyymimxchrp0j1v3a4rrj9-user-environment.drv'...
    created 231 symlinks in user environment
    

    Update spin2cpp:
    red@kubuntu:~/.config/nixpkgs/overlays/parallax-tooling$ nix-env -iA nixpkgs.spin2cpp
    installing 'spin2cpp-2019-02-09r1'
    building '/nix/store/j4yblkhm795wnc4d3kirll4ibcg7pw9i-user-environment.drv'...
    created 234 symlinks in user environment
    red@kubuntu:~/.config/nixpkgs/overlays/parallax-tooling$ nix-env -iA nixpkgs.spinsim
    installing 'spinsim-2018-12-06r1'
    these paths will be fetched (0.07 MiB download, 0.15 MiB unpacked):
      /nix/store/nl1136i4rzmjrwib8rmvdn5h7bb47ald-spinsim-2018-12-06r1
    copying path '/nix/store/nl1136i4rzmjrwib8rmvdn5h7bb47ald-spinsim-2018-12-06r1' from 'https://redvers.cachix.org'...
    building '/nix/store/ksqzahpk0y8mwgrclv331zsxx6hf1wnb-user-environment.drv'...
    created 235 symlinks in user environment
    
  • Update Openspin:
    red@kubuntu:~/.config/nixpkgs/overlays/parallax-tooling$ nix-env -iA nixpkgs.openspin
    installing 'openspin-unstable-2018-10-02'
    these paths will be fetched (0.05 MiB download, 0.14 MiB unpacked):
      /nix/store/wfmg9h1dq3iparv2k7f1sgajx5ik9m0a-openspin-unstable-2018-10-02
    copying path '/nix/store/wfmg9h1dq3iparv2k7f1sgajx5ik9m0a-openspin-unstable-2018-10-02' from 'https://cache.nixos.org'...
    building '/nix/store/zkpj4kz3chcxpdin27pcj1cd1fspv18f-user-environment.drv'...
    created 236 symlinks in user environment
    
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