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Get rid of most .at calls (#6393)

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Use one of `get` or `getOr` instead which will either return a null-pointer (with a nicer error message) or a default value when the key is missing.
This commit is contained in:
Alain Zscheile 2022-05-04 07:44:32 +02:00 • committed by GitHub
parent 9489b4b7ef
commit 1385b20078
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GPG key ID: 4AEE18F83AFDEB23
22 changed files with 231 additions and 118 deletions
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11
src/libexpr/flake/config.cc
View file

@ -50,13 +50,11 @@ void ConfigFile::apply()
else
assert(false);
if (!whitelist.count(baseName)) {
auto trustedList = readTrustedList();
if (!whitelist.count(baseName) && !nix::fetchSettings.acceptFlakeConfig) {
bool trusted = false;
if (nix::fetchSettings.acceptFlakeConfig){
trusted = true;
} else if (auto saved = get(get(trustedList, name).value_or(std::map<std::string, bool>()), valueS)) {
auto trustedList = readTrustedList();
auto tlname = get(trustedList, name);
if (auto saved = tlname ? get(*tlname, valueS) : nullptr) {
trusted = *saved;
warn("Using saved setting for '%s = %s' from ~/.local/share/nix/trusted-settings.json.", name,valueS);
} else {
@ -69,7 +67,6 @@ void ConfigFile::apply()
writeTrustedList(trustedList);
}
}
if (!trusted) {
warn("ignoring untrusted flake configuration setting '%s'", name);
continue;

6
src/libexpr/flake/flakeref.cc
View file

@ -176,7 +176,7 @@ std::pair<FlakeRef, std::string> parseFlakeRefWithFragment(
parsedURL.query.insert_or_assign("shallow", "1");
return std::make_pair(
FlakeRef(Input::fromURL(parsedURL), get(parsedURL.query, "dir").value_or("")),
FlakeRef(Input::fromURL(parsedURL), getOr(parsedURL.query, "dir", "")),
fragment);
}
@ -189,7 +189,7 @@ std::pair<FlakeRef, std::string> parseFlakeRefWithFragment(
if (!hasPrefix(path, "/"))
throw BadURL("flake reference '%s' is not an absolute path", url);
auto query = decodeQuery(match[2]);
path = canonPath(path + "/" + get(query, "dir").value_or(""));
path = canonPath(path + "/" + getOr(query, "dir", ""));
}
fetchers::Attrs attrs;
@ -208,7 +208,7 @@ std::pair<FlakeRef, std::string> parseFlakeRefWithFragment(
input.parent = baseDir;
return std::make_pair(
FlakeRef(std::move(input), get(parsedURL.query, "dir").value_or("")),
FlakeRef(std::move(input), getOr(parsedURL.query, "dir", "")),
fragment);
}
}