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```console
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$ 04_04_custom_derive --help
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A simple to use, efficient, and full-featured Command Line Argument Parser
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2022-09-07 16:03:55 +00:00
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Usage: 04_04_custom_derive[EXE] [OPTIONS] [INPUT_FILE]
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2022-08-26 14:40:23 +00:00
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Arguments:
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[INPUT_FILE] some regular input
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2022-08-26 14:40:23 +00:00
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Options:
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--set-ver <VER> set version manually
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--major auto inc major
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--minor auto inc minor
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--patch auto inc patch
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--spec-in <SPEC_IN> some special input argument
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-c <CONFIG>
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-h, --help Print help
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-V, --version Print version
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2022-08-08 19:05:08 +00:00
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$ 04_04_custom_derive
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? failed
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error: Can only modify one version field
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2022-09-07 16:03:55 +00:00
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Usage: clap [OPTIONS] [INPUT_FILE]
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2022-09-15 19:22:28 +00:00
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For more information try '--help'
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2022-08-08 19:05:08 +00:00
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$ 04_04_custom_derive --major
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Version: 2.2.3
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2022-08-08 19:05:08 +00:00
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$ 04_04_custom_derive --major --minor
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? failed
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error: Can only modify one version field
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2022-09-07 16:03:55 +00:00
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Usage: clap [OPTIONS] [INPUT_FILE]
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2022-09-15 19:22:28 +00:00
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For more information try '--help'
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2022-07-19 18:29:31 +00:00
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2022-08-08 19:05:08 +00:00
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$ 04_04_custom_derive --major -c config.toml
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? failed
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Version: 2.2.3
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error: INPUT_FILE or --spec-in is required when using --config
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2022-09-07 16:03:55 +00:00
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Usage: clap [OPTIONS] [INPUT_FILE]
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2022-07-19 18:29:31 +00:00
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2022-09-15 19:22:28 +00:00
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For more information try '--help'
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2022-07-19 18:29:31 +00:00
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2022-08-08 19:05:08 +00:00
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$ 04_04_custom_derive --major -c config.toml --spec-in input.txt
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Version: 2.2.3
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Doing work using input input.txt and config config.toml
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```
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