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feat: read installable paths from stdin
Resolves #7437 for new `nix` commands only by adding a `--stdin` flag. If paths are also passed on the cli they will be combined with the ones from standard input.
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2 changed files with 18 additions and 1 deletions
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@ -128,6 +128,8 @@ struct InstallablesCommand : virtual Args, SourceExprCommand
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virtual bool useDefaultInstallables() { return true; }
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bool readFromStdIn;
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std::vector<std::string> getFlakesForCompletion() override;
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protected:
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@ -691,6 +691,13 @@ StorePathSet Installable::toDerivations(
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InstallablesCommand::InstallablesCommand()
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{
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addFlag({
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.longName = "stdin",
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.description = "Read installables from the standard input.",
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.handler = {&readFromStdIn, true}
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});
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expectArgs({
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.label = "installables",
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.handler = {&_installables},
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@ -707,10 +714,18 @@ void InstallablesCommand::prepare()
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Installables InstallablesCommand::load()
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{
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if (_installables.empty() && useDefaultInstallables())
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if (_installables.empty() && useDefaultInstallables() && !readFromStdIn)
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// FIXME: commands like "nix profile install" should not have a
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// default, probably.
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_installables.push_back(".");
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if (readFromStdIn && !isatty(STDIN_FILENO)) {
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std::string word;
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while (std::cin >> word) {
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_installables.emplace_back(std::move(word));
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}
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}
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return parseInstallables(getStore(), _installables);
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}
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