Use StderrLogHandler for rich logging features.#1066
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jglogan merged 1 commit intoapple:mainfrom Jan 20, 2026
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- Facilitates apple#507, apple#642. - Plumb logger with logger option access into every command. - StderrLogHandler allows logging to be enhanced for ANSI color mode for log levels, JSONL log output, replacing `--debug` with `--level level`. - Global logger is now just an Application.swift fileprivate only used for initial args processing. - Log with timestamp at debug and trace level. - Metadata output is crude at present; we can refine this in a follow-up.
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katiewasnothere
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- Facilitates apple#507, apple#642. - Plumb logger with logger option access into every command. - StderrLogHandler allows logging to be enhanced for ANSI color mode for log levels, JSONL log output, replacing `--debug` with `--level level`. - Global logger is now just an Application.swift fileprivate only used for initial args processing. - Log with timestamp at debug and trace level. - Metadata output is crude at present; we can refine this in a follow-up.
saehejkang
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Jan 27, 2026
- Facilitates apple#507, apple#642. - Plumb logger with logger option access into every command. - StderrLogHandler allows logging to be enhanced for ANSI color mode for log levels, JSONL log output, replacing `--debug` with `--level level`. - Global logger is now just an Application.swift fileprivate only used for initial args processing. - Log with timestamp at debug and trace level. - Metadata output is crude at present; we can refine this in a follow-up.
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--debug. #507, [Request]: UX: Use stdout and stderr, and logging consistently in CLI commands. #642.--debugwith--level level.Type of Change
Motivation and Context
See above.
Testing