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nix --help: Display help using lowdown instead of man

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Fixes #4476.
Fixes #5231.
This commit is contained in:
Eelco Dolstra 2021-09-13 14:41:28 +02:00
parent 14205debb2
commit 49a932fb18
8 changed files with 89 additions and 25 deletions
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8
src/libutil/args.hh
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@ -12,6 +12,8 @@ namespace nix {
enum HashType : char;
class MultiCommand;
class Args
{
public:
@ -169,11 +171,13 @@ public:
virtual nlohmann::json toJSON();
friend class MultiCommand;
MultiCommand * parent = nullptr;
};
/* A command is an argument parser that can be executed by calling its
run() method. */
struct Command : virtual Args
struct Command : virtual public Args
{
friend class MultiCommand;
@ -193,7 +197,7 @@ typedef std::map<std::string, std::function<ref<Command>()>> Commands;
/* An argument parser that supports multiple subcommands,
i.e. ‘<command> <subcommand>’. */
class MultiCommand : virtual Args
class MultiCommand : virtual public Args
{
public:
Commands commands;