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Backport SourcePath from the lazy-trees branch

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This introduces the SourcePath type from lazy-trees as an abstraction
for accessing files from inputs that may not be materialized in the
real filesystem (e.g. Git repositories). Currently, however, it's just
a wrapper around CanonPath, so it shouldn't change any behaviour. (On
lazy-trees, SourcePath is a <InputAccessor, CanonPath> tuple.)
This commit is contained in:
Eelco Dolstra 2023-04-06 13:15:50 +02:00
parent 5256ba6d87
commit 94812cca98
35 changed files with 567 additions and 263 deletions
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4
src/libexpr/flake/flake.cc
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@ -218,7 +218,7 @@ static Flake getFlake(
throw Error("source tree referenced by '%s' does not contain a '%s/flake.nix' file", lockedRef, lockedRef.subdir);
Value vInfo;
state.evalFile(flakeFile, vInfo, true); // FIXME: symlink attack
state.evalFile(CanonPath(flakeFile), vInfo, true); // FIXME: symlink attack
expectType(state, nAttrs, vInfo, state.positions.add({flakeFile}, 1, 1));
@ -731,7 +731,7 @@ void callFlake(EvalState & state,
state.vCallFlake = allocRootValue(state.allocValue());
state.eval(state.parseExprFromString(
#include "call-flake.nix.gen.hh"
, "/"), **state.vCallFlake);
, CanonPath::root), **state.vCallFlake);
}
state.callFunction(**state.vCallFlake, *vLocks, *vTmp1, noPos);