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RunOptions: Use designated initializers

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Also get rid of _killStderr because it wasn't actually checked
anywhere.
This commit is contained in:
Eelco Dolstra 2021-09-13 23:22:09 +02:00
parent c3e9acd1c0
commit 4ed66735b6
7 changed files with 48 additions and 64 deletions
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25
src/libfetchers/mercurial.cc
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@ -11,28 +11,27 @@ using namespace std::string_literals;
namespace nix::fetchers {
namespace {
RunOptions hgOptions(const Strings & args)
static RunOptions hgOptions(const Strings & args)
{
RunOptions opts("hg", args);
opts.searchPath = true;
auto env = getEnv();
// Set HGPLAIN: this means we get consistent output from hg and avoids leakage from a user or system .hgrc.
env["HGPLAIN"] = "";
opts.environment = env;
return opts;
return {
.program = "hg",
.searchPath = true,
.args = args,
.environment = env
};
}
// runProgram wrapper that uses hgOptions instead of stock RunOptions.
string runHg(const Strings & args, const std::optional<std::string> & input = {})
static string runHg(const Strings & args, const std::optional<std::string> & input = {})
{
RunOptions opts = hgOptions(args);
opts.input = input;
auto res = runProgram(opts);
auto res = runProgram(std::move(opts));
if (!statusOk(res.first))
throw ExecError(res.first, fmt("hg %1%", statusToString(res.first)));
@ -40,8 +39,6 @@ string runHg(const Strings & args, const std::optional<std::string> & input = {}
return res.second;
}
}
struct MercurialInputScheme : InputScheme
{
std::optional<Input> inputFromURL(const ParsedURL & url) override
@ -254,9 +251,7 @@ struct MercurialInputScheme : InputScheme
have to pull again. */
if (!(input.getRev()
&& pathExists(cacheDir)
&& runProgram(
hgOptions({ "log", "-R", cacheDir, "-r", input.getRev()->gitRev(), "--template", "1" })
.killStderr(true)).second == "1"))
&& runProgram(hgOptions({ "log", "-R", cacheDir, "-r", input.getRev()->gitRev(), "--template", "1" })).second == "1"))
{
Activity act(*logger, lvlTalkative, actUnknown, fmt("fetching Mercurial repository '%s'", actualUrl));