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* Canonicalise paths so that Fix produces identical Nix

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expressions for identical inputs.
This commit is contained in:
Eelco Dolstra 2003-07-08 20:26:22 +00:00
parent cab3f4977a
commit 9a99dc736d
3 changed files with 4 additions and 3 deletions
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3
src/fix.cc
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@ -170,7 +170,8 @@ static Expr evalExpr(Expr e)
if (name == "") if (name == "")
throw badTerm("no package name specified", nf); throw badTerm("no package name specified", nf);
string out = nixStore + "/" + ((string) hash).c_str() + "-" + name; string out =
canonPath(nixStore + "/" + ((string) hash).c_str() + "-" + name);
env = ATinsert(env, ATmake("(<str>, <str>)", "out", out.c_str())); env = ATinsert(env, ATmake("(<str>, <str>)", "out", out.c_str()));

2
src/fstate.cc
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@ -163,7 +163,7 @@ Hash writeTerm(ATerm t)
if (!ATwriteToNamedTextFile(t, path.c_str())) if (!ATwriteToNamedTextFile(t, path.c_str()))
throw Error(format("cannot write aterm %1%") % path); throw Error(format("cannot write aterm %1%") % path);
Hash hash = hashPath(path); Hash hash = hashPath(path);
string path2 = nixStore + "/" + (string) hash + ".nix"; string path2 = canonPath(nixStore + "/" + (string) hash + ".nix");
if (rename(path.c_str(), path2.c_str()) == -1) if (rename(path.c_str(), path2.c_str()) == -1)
throw SysError(format("renaming %1% to %2%") % path % path2); throw SysError(format("renaming %1% to %2%") % path % path2);
registerPath(path2, hash); registerPath(path2, hash);

2
src/store.cc
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@ -177,7 +177,7 @@ void addToStore(string srcPath, string & dstPath, Hash & hash)
} }
string baseName = baseNameOf(srcPath); string baseName = baseNameOf(srcPath);
dstPath = nixStore + "/" + (string) hash + "-" + baseName; dstPath = canonPath(nixStore + "/" + (string) hash + "-" + baseName);
copyPath(srcPath, dstPath); copyPath(srcPath, dstPath);