47 lines
1.2 KiB
Standard ML
47 lines
1.2 KiB
Standard ML
/*
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* This file is part of the Fun programming language.
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* https://fun-lang.xyz/
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*
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* Copyright 2025 Johannes Findeisen
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* Licensed under the terms of the Apache-2.0 license.
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* https://opensource.org/license/apache-2-0
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*
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* Added: 2025-10-02
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*/
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/*
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* Process utilities built on proc_run() and system().
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*
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* Methods:
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* run(cmd) -> map { "out": string, "code": number }
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* run_merge_stderr(cmd) -> same, but merges stderr into stdout (" 2>&1")
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* system(cmd) -> exit code number
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* check_call(cmd) -> 1 if exit code==0 else 0
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*/
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class Process()
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// Execute command and capture stdout and exit code
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fun run(this, cmd)
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return proc_run(to_string(cmd))
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// Merge stderr into stdout using shell redirection
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fun run_merge_stderr(this, cmd)
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c = to_string(cmd)
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// Add a single space if needed
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if (len(c) > 0) && (substr(c, len(c) - 1, 1) != " ")
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c = join([c, " 2>&1"], "")
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else
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c = join([c, "2>&1"], "")
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return proc_run(c)
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// Return the exit code of the command
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fun system(this, cmd)
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return system(to_string(cmd))
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// Return 1 if command succeeds (exit code 0), else 0
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fun check_call(this, cmd)
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code = system(to_string(cmd))
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if (code == 0)
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return 1
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else
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return 0
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