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// file : libbutl/process-io.hxx -*- C++ -*-
// license : MIT; see accompanying LICENSE file
#pragma once
#include <ostream>
#include <libbutl/process.hxx>
#include <libbutl/export.hxx>
namespace butl
{
inline std::ostream&
operator<< (std::ostream& o, const process_path& p)
{
return o << p.recall_string ();
}
inline std::ostream&
operator<< (std::ostream& o, const process_args& a)
{
process::print (o, a.argv, a.argc);
return o;
}
// Print the environment variables and the current working directory (if
// specified) in a POSIX shell command line notation. The process path
// itself is not printed. For example:
//
// LC_ALL=C
//
// If an environment variable is in the `name` rather than in the
// `name=value` form, then it is considered unset. Since there is no POSIX
// way to unset a variable on the command line, this information is printed
// as `name=` (ambiguous with assigning an empty value but the two cases are
// normally handled in the same way). For example:
//
// PATH= LC_ALL=C
//
// Note that since there is no POSIX way to change the current working
// directory of a command to be executed, this information is printed in a
// pseudo-notation by assigning to PWD (which, according POSIX, would result
// in the undefined behavior of the cwd utility). For example:
//
// PWD=/tmp LC_ALL=C
//
LIBBUTL_SYMEXPORT std::ostream&
operator<< (std::ostream&, const process_env&);
}
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