nix.md

icon	description
snowflake	https://kokada.dev/blog/building-static-binaries-in-nix/

Nix

Native

{% code overflow="wrap" %}

#Create Dir for later
mkdir -pv "./OUTDIR"

#Build and Output to ./TMPDIR (Symlink)
NIXPKGS_ALLOW_BROKEN="1" NIXPKGS_ALLOW_UNSUPPORTED_SYSTEM="1" \
nix-build '<nixpkgs>' --attr "pkgsStatic.${PKG_NAME}" --impure \
--cores "$(($(nproc)+1))" --max-jobs "$(($(nproc)+1))" \
--log-format bar-with-logs --out-link "./TMPDIR"

#Copy (Dir may differ)
sudo rsync -av --copy-links "./TMPDIR/bin/." "./OUTDIR"
sudo chown -R "$(whoami):$(whoami)" "./OUTDIR" && chmod -R 755 "./OUTDIR"

#Strip & File
find "./OUTDIR" -type f -exec objcopy --remove-section=".comment" --remove-section=".note.*" "{}" \;
find "./OUTDIR" -type f ! -name "*.no_strip" -exec strip --strip-debug --strip-dwo --strip-unneeded --preserve-dates "{}" \;
find "./OUTDIR" -type f -print | xargs -I {} sh -c 'file {}; b3sum {}; sha256sum {}; du -sh {}'

#Cleanup
nix-collect-garbage >/dev/null 2>&1

{% endcode %}

---

Cross

{% code overflow="wrap" %}

#Create Dir for later
mkdir -pv "./OUTDIR"

#${NIX_TARGET}: https://github.com/Azathothas/Toolpacks/blob/main/Docs/NIX_TARGETS.txt
nix-instantiate --eval --strict --expr 'let pkgs = import <nixpkgs> {}; pkgsCross = pkgs.pkgsCross; in builtins.attrNames pkgsCross' | tr -d '[]"' | tr ' ' '\n' | sed '/^\s*$/d'

#Build and Output to ./TMPDIR (Symlink)
NIXPKGS_ALLOW_BROKEN="1" NIXPKGS_ALLOW_UNSUPPORTED_SYSTEM="1" \
nix-build '<nixpkgs>' --attr "pkgsCross.${NIX_TARGET}.pkgsStatic.${PKG_NAME}" --impure \
--cores "$(($(nproc)+1))" --max-jobs "$(($(nproc)+1))" \
--log-format bar-with-logs --out-link "./TMPDIR"

#Copy (Dir may differ)
sudo rsync -av --copy-links "./TMPDIR/bin/." "./OUTDIR"
sudo chown -R "$(whoami):$(whoami)" "./OUTDIR" && chmod -R 755 "./OUTDIR"

#Strip & File
find "./OUTDIR" -type f -exec objcopy --remove-section=".comment" --remove-section=".note.*" "{}" \;
find "./OUTDIR" -type f ! -name "*.no_strip" -exec strip --strip-debug --strip-dwo --strip-unneeded --preserve-dates "{}" \;
find "./OUTDIR" -type f -print | xargs -I {} sh -c 'file {}; b3sum {}; sha256sum {}; du -sh {}'

#Cleanup
nix-collect-garbage >/dev/null 2>&1

{% endcode %}

---

Old Versions

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!#1. Using GIT_COMMIT_SHA

#Get Version
nix derivation show "github:NixOS/nixpkgs/${COMMIT_SHA}#${PKG_NAME}" --impure --refresh --quiet 2>&1 | jq -r '.. | objects | select(has("version")) | .version'

#Build
nix-build 'https://github.com/NixOS/nixpkgs/archive/${COMMIT_SHA}.tar.gz' --impure --attr "pkgsStatic.${PKG_NAME}" --cores "$(($(nproc)+1))" --max-jobs "$(($(nproc)+1))" --log-format bar-with-logs --out-link "./TMPDIR"

!#2. Using GIT_TAGS: https://github.com/NixOS/nixpkgs/tags

#Get Version
nix derivation show "github:NixOS/nixpkgs/${GIT_TAG}#${PKG_NAME}" --impure --refresh --quiet 2>&1 | jq -r '.. | objects | select(has("version")) | .version'

#Build
nix-build 'https://github.com/NixOS/nixpkgs/archive/refs/tags/${GIT_TAG}.tar.gz' --impure --attr "pkgsStatic.${PKG_NAME}" --cores "$(($(nproc)+1))" --max-jobs "$(($(nproc)+1))" --log-format bar-with-logs --out-link "./TMPDIR"

{% endcode %}