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More robust source locking

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t4ccer 2023-10-11 21:56:51 -06:00 committed by DavHau
parent 2313bdf946
commit c5b2624352
3 changed files with 189 additions and 109 deletions
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examples/packages/single-language/haskell-cabal/lock.json
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@ -3,154 +3,230 @@
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"version": "0.6.3.0",
"cabal-sha256": "cf2a8edc1f4086934638d11882423780dd096c4e77d9c6639ccc469c6c26f041",
"cabal-url": "https://hackage.haskell.org/package/zlib-0.6.3.0/revision/3.cabal",
"url": "http://hackage.haskell.org/package/zlib/zlib-0.6.3.0.tar.gz",
"sha256": "9eaa989ad4534438b5beb51c1d3a4c8f6a088fdff0b259a5394fbf39aaee04da"
"cabal": {
"url": "https://hackage.haskell.org/package/zlib-0.6.3.0/revision/3.cabal",
"hash": "sha256-zyqO3B9AhpNGONEYgkI3gN0JbE532cZjnMxGnGwm8EE="
},
"src": {
"url": "http://hackage.haskell.org/package/zlib/zlib-0.6.3.0.tar.gz",
"hash": "sha256-3PLCQ94ONQtjQc8AqVMgCVrZZW766T8PDevOvKC4VDw="
}
}
},
"invalidationHash": "44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a"

38
modules/dream2nix/WIP-haskell-cabal/default.nix
View File

@ -22,42 +22,20 @@
;
};
getNameVer = p: "${p.name}-${p.version}";
fetchCabalFile = p:
config.deps.fetchurl {
url = p.cabal-url;
sha256 = p.cabal-sha256;
inherit (p.cabal) url hash;
};
fetchFromHackage = p:
config.deps.stdenv.mkDerivation {
name = "${getNameVer p}-source";
# NOTE: Cannot use fetchTarball because cabal gives hash before unpacking
src = config.deps.fetchurl {
inherit (p) url sha256;
};
# We are fetching cabal file separately to match the revision
# p.url contains only "base" release
installPhase = ''
runHook preInstall
mkdir unpacked
tar -C unpacked -xf "$src"
mv unpacked/${getNameVer p} $out
cp ${fetchCabalFile p} $out/${p.name}.cabal
runHook postInstall
'';
dontFixup = true;
fetchDependency = p:
config.deps.fetchzip {
inherit (p.src) url hash;
};
vendorPackage = p: ''
echo "Vendoring ${fetchFromHackage p}"
cp -r ${fetchFromHackage p} $VENDOR_DIR/${p.name}
echo "Vendoring ${p.name}-${p.version}"
cp --no-preserve=all -r ${fetchDependency p} $VENDOR_DIR/${p.name}
cp --no-preserve=all ${fetchCabalFile p} $VENDOR_DIR/${p.name}/${p.name}.cabal
'';
vendorPackages =
@ -123,6 +101,7 @@ in {
config.deps.cabal-install
config.deps.haskell-compiler
config.deps.coreutils
config.deps.nix
(config.deps.python3.withPackages (ps: with ps; [requests]))
] ''
cd $TMPDIR
@ -139,6 +118,7 @@ in {
cabal-install
python3
fetchurl
fetchzip
stdenv
coreutils
bash

32
modules/dream2nix/WIP-haskell-cabal/lock.py
View File

@ -10,6 +10,7 @@ from urllib.parse import urljoin
import json
import os
import requests
import subprocess
import sys
with open("./dist-newstyle/cache/plan.json") as f:
@ -30,6 +31,16 @@ pkg_len = len(pkgs)
lock = {}
def to_sri(h):
return subprocess.run(
["nix", "hash", "to-sri", "--type", "sha256", h],
check=True,
capture_output=True,
text=True,
).stdout.strip()
for i, pkg in enumerate(pkgs):
name = pkg["pkg-name"]
id = pkg["id"]
@ -56,13 +67,26 @@ for i, pkg in enumerate(pkgs):
rev_hash = sha256(rev_cabal.encode("utf-8")).hexdigest()
if rev_hash == pkg["pkg-cabal-sha256"]:
# Cabal gives hash before unpack, so we need to prefetch the source
src_hash = subprocess.run(
["nix-prefetch-url", "--unpack", "--type", "sha256", url],
check=True,
capture_output=True,
text=True,
).stdout.strip()
src_hash = to_sri(src_hash)
lock[id] = {
"name": name,
"version": version,
"cabal-sha256": rev_hash,
"cabal-url": rev_url,
"url": url,
"sha256": pkg["pkg-src-sha256"],
"cabal": {
"url": rev_url,
"hash": to_sri(rev_hash),
},
"src": {
"url": url,
"hash": src_hash,
},
}
break
else: