nordic-dev.net/nix
nordic-dev.net/nix
2
0
Fork 0
mirror of https://github.com/NixOS/nix.git synced 2024-11-21 22:32:26 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #11912 from DeterminateSystems/apply-rewrites

Browse Source 
BasicDerivation: Add applyRewrites() method
This commit is contained in:
John Ericson 2024-11-20 10:12:01 -05:00 committed by GitHub
commit a7e1f2d5a3
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
2 changed files with 20 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
src/libstore/derivations.cc
View File

@ -1017,29 +1017,31 @@ std::string hashPlaceholder(const OutputNameView outputName)
return "/" + hashString(HashAlgorithm::SHA256, concatStrings("nix-output:", outputName)).to_string(HashFormat::Nix32, false);
}
static void rewriteDerivation(Store & store, BasicDerivation & drv, const StringMap & rewrites)
void BasicDerivation::applyRewrites(const StringMap & rewrites)
{
debug("Rewriting the derivation");
if (rewrites.empty()) return;
for (auto & rewrite : rewrites) {
debug("rewriting the derivation");
for (auto & rewrite : rewrites)
debug("rewriting %s as %s", rewrite.first, rewrite.second);
}
drv.builder = rewriteStrings(drv.builder, rewrites);
for (auto & arg : drv.args) {
builder = rewriteStrings(builder, rewrites);
for (auto & arg : args)
arg = rewriteStrings(arg, rewrites);
}
StringPairs newEnv;
for (auto & envVar : drv.env) {
for (auto & envVar : env) {
auto envName = rewriteStrings(envVar.first, rewrites);
auto envValue = rewriteStrings(envVar.second, rewrites);
newEnv.emplace(envName, envValue);
}
drv.env = newEnv;
env = std::move(newEnv);
}
static void rewriteDerivation(Store & store, BasicDerivation & drv, const StringMap & rewrites)
{
drv.applyRewrites(rewrites);
auto hashModulo = hashDerivationModulo(store, Derivation(drv), true);
for (auto & [outputName, output] : drv.outputs) {

6
src/libstore/derivations.hh
View File

@ -325,6 +325,12 @@ struct BasicDerivation
static std::string_view nameFromPath(const StorePath & storePath);
/**
* Apply string rewrites to the `env`, `args` and `builder`
* fields.
*/
void applyRewrites(const StringMap & rewrites);
bool operator == (const BasicDerivation &) const = default;
// TODO libc++ 16 (used by darwin) missing `std::map::operator <=>`, can't do yet.
//auto operator <=> (const BasicDerivation &) const = default;