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https://github.com/vlang/v.git
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39 lines
1.8 KiB
Plaintext
39 lines
1.8 KiB
Plaintext
Usage:
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v fmt [options] path_to_source.v [path_to_other_source.v]
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v fmt [options] path/to/dir [path/to/other_dir]
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cat source.v | v fmt
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Read source code from stdin, output formatted file to stdout.
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Formats the given V source files or recursively formats all files in the directory,
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then prints their formatted source to stdout.
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Options:
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-c Check if a file is already formatted. If not, print the filepath and exit with code 2.
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Compared to -verify it is quicker but has a small trade-off in precision.
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-diff Display the differences between the formatted source(s) and the original source(s).
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This will attempt to find a working `diff` command automatically unless you
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specify one with the VDIFF_TOOL environment variable.
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-l List files whose formatting differs from vfmt.
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-w Write result to (source) file(s) instead of to stdout.
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-backup In combination with `-w`, copy the original `file.v` to a `file.v.bak` backup,
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before overwriting the original source file.
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-debug Print the kinds of encountered AST statements/expressions on stderr.
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-verify Make sure the provided file is already formatted. Useful for checking code contributions
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in CI for example.
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Environment Variables:
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VDIFF_TOOL A command-line tool that will be executed with the original file path
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and a temporary formatted file path as arguments. e.g.
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`VDIFF_TOOL=opendiff v fmt -diff path/to/file.v` will become:
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opendiff path/to/file.v /tmp/v/vfmt_file.v
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VDIFF_OPTIONS A set of command-line options to be sent immediately after the
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`diff` command. e.g.
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VDIFF_OPTIONS="-W 80 -y" v fmt -diff path/to/file.v /tmp/v/vfmt_file.v
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