#+TITLE: Guix
#+PROPERTY: header-args :mkdirp yes
#+PROPERTY: header-args:bash           :tangle-mode (identity #o755) :comments link :shebang "#!/usr/bin/env bash"
#+PROPERTY: header-args:scheme         :comments link

* Profiles
** Activate profiles
A script to activate guix profiles.

Source: [[https://github.com/daviwil/dotfiles/blob/master/Systems.org#activating-profiles][David Wilson's config]]

#+begin_src bash :tangle ./bin/scripts/activate-profles
GREEN='\033[1;32m'
RED='\033[1;30m'
NC='\033[0m'
GUIX_EXTRA_PROFILES=$HOME/.guix-extra-profiles

profiles=$*
if [[ $# -eq 0 ]]; then
    profiles="$HOME/.config/guix/manifests/*.scm";
fi

for profile in $profiles; do
  # Remove the path and file extension, if any
  profileName=$(basename $profile)
  profileName="${profileName%.*}"
  profilePath="$GUIX_EXTRA_PROFILES/$profileName"
  manifestPath=$HOME/.config/guix/manifests/$profileName.scm

  if [ -f $manifestPath ]; then
    echo
    echo -e "${GREEN}Activating profile:" $manifestPath "${NC}"
    echo

    mkdir -p $profilePath
    guix package --manifest=$manifestPath --profile="$profilePath/$profileName"

    # Source the new profile
    GUIX_PROFILE="$profilePath/$profileName"
    if [ -f $GUIX_PROFILE/etc/profile ]; then
        . "$GUIX_PROFILE"/etc/profile
    else
        echo -e "${RED}Couldn't find profile:" $GUIX_PROFILE/etc/profile "${NC}"
    fi
  else
    echo "No profile found at path" $profilePath
  fi
done
#+end_src
** Update profiles
A script to update Guix profiles.

Source: once again, [[https://github.com/daviwil/dotfiles/blob/master/Systems.org#updating-profiles][David Wilson's config]].

#+begin_src bash :tangle ./bin/scripts/update-profiles
GREEN='\033[1;32m'
NC='\033[0m'
GUIX_EXTRA_PROFILES=$HOME/.guix-extra-profiles

profiles=$*
if [[ $# -eq 0 ]]; then
    profiles="$GUIX_EXTRA_PROFILES/*";
fi

for profile in $profiles; do
  profileName=$(basename $profile)
  profilePath=$GUIX_EXTRA_PROFILES/$profileName

  echo
  echo -e "${GREEN}Updating profile:" $profilePath "${NC}"
  echo

  guix package --profile="$profilePath/$profileName" --manifest="$HOME/.config/guix/manifests/$profileName.scm"
done
#+end_src
* Channels
Specifying additional channels.

References:
- [[https://gitlab.com/nonguix/nonguix][nonguix channel repo]]
- [[https://guix.gnu.org/manual/en/html_node/Channels.html][Guix channels reference]]

#+begin_src scheme :tangle .config/guix/channels.scm
(cons*
 (channel
  (name 'channel-q)
  (url "file:///home/pavel/Code/channel-q"))
 (channel
  (name 'nonguix)
  (url "https://gitlab.com/nonguix/nonguix"))
 %default-channels)
#+end_src
* Notes on installing software
| Category | Guix dependency | Description                                        |
|----------+-----------------+----------------------------------------------------|
| dev      | patchelf        | A program to modify existsing ELF executables      |
| dev      | glibc           | A lot of stuff, including ELF interpeter and ~ldd~ |

** wakatime-cli
| Note | Description           |
|------+-----------------------|
| TODO | Package this for Guix |

Before I figure out how to package this for Guix:
- Clone [[https://github.com/wakatime/wakatime-cli][the repo]]
- Run ~go build~
- Copy the binary to the =~/bin= folder

** ActivityWatch
| Note | Description           |
|------+-----------------------|
| TODO | Package this for Guix |

The official binaries work just fine after some patching, except for the =aw-qt= binary.

Properly building from source is more awkward (PyInstaller? Are you serious? xD), as there are multiple packages with lots of dependencies.

The patching is as follows:

- Get ELF interpeter patch from ~guix build glibc~, after which patch ELF interpeter path for the required binaries, e.g.:
#+begin_src bash eval :no
patchelf --set-interpreter /gnu/store/fa6wj5bxkj5ll1d7292a70knmyl7a0cr-glibc-2.31/lib/ld-linux-x86-64.so.2 aw-qt
patchelf --set-interpreter /gnu/store/fa6wj5bxkj5ll1d7292a70knmyl7a0cr-glibc-2.31/lib/ld-linux-x86-64.so.2 aw-server/aw-server
patchelf --set-interpreter /gnu/store/fa6wj5bxkj5ll1d7292a70knmyl7a0cr-glibc-2.31/lib/ld-linux-x86-64.so.2 aw-server-rust/aw-server-rust
patchelf --set-interpreter /gnu/store/fa6wj5bxkj5ll1d7292a70knmyl7a0cr-glibc-2.31/lib/ld-linux-x86-64.so.2 aw-watcher-afk/aw-watcher-afk
patchelf --set-interpreter /gnu/store/fa6wj5bxkj5ll1d7292a70knmyl7a0cr-glibc-2.31/lib/ld-linux-x86-64.so.2 aw-watcher-window/aw-watcher-window
#+end_src

Add libz to RPATH

| Category | Guix dependency |
|----------+-----------------|
| misc     | zlib            |

#+begin_src bash eval :no
patchelf --set-rpath /gnu/store/rykm237xkmq7rl1p0nwass01p090p88x-zlib-1.2.11/lib/ aw-qt
patchelf --set-rpath /gnu/store/rykm237xkmq7rl1p0nwass01p090p88x-zlib-1.2.11/lib/ aw-server/aw-server
patchelf --set-rpath /gnu/store/rykm237xkmq7rl1p0nwass01p090p88x-zlib-1.2.11/lib/ aw-server-rust/aw-server-rust
patchelf --set-rpath /gnu/store/rykm237xkmq7rl1p0nwass01p090p88x-zlib-1.2.11/lib/ aw-watcher-afk/aw-watcher-afk
patchelf --set-rpath /gnu/store/rykm237xkmq7rl1p0nwass01p090p88x-zlib-1.2.11/lib/ aw-watcher-window/aw-watcher-window
#+end_src

As aw-qt doesn't work properly, and the only thing it does is makes a tray icon anyhow, here is a script to launch the required components:
#+begin_src bash :tangle ./bin/aw-start
~/Programs/activitywatch/aw-server/aw-server &
~/Programs/activitywatch/aw-watcher-afk/aw-watcher-afk &
~/Programs/activitywatch/aw-watcher-window/aw-watcher-window &
#+end_src