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@ -45,35 +45,58 @@ impl App {
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.setting(AppSettings::DisableHelpSubcommand)
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.setting(AppSettings::VersionlessSubcommands)
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.max_term_width(90)
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.about(crate_description!())
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.about(
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"A cat(1) clone with wings.\n\n\
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Use '--help' instead of '-h' to see a more detailed version of the help text.",
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)
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.long_about("A cat(1) clone with syntax highlighting and Git integration.")
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.arg(
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Arg::with_name("language")
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.short("l")
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.long("language")
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.help("Set the language for highlighting")
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.long_help(
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"Set the language for syntax highlighting. The language can be \
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specified as a name (like 'C++' or 'LaTeX') or possible file \
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extension (like 'cpp', 'hpp' or 'md'). Use '--list-languages' \
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to show all supported language names and file extensions",
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)
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.takes_value(true),
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)
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.arg(
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Arg::with_name("FILE")
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.help("File(s) to print")
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.help("File(s) to print / concatenate. Use '-' for standard input.")
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.long_help(
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"File(s) to print. Use no argument or '-' to read from standard \
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input",
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)
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.multiple(true)
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.empty_values(false),
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)
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.arg(
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Arg::with_name("style")
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.long("style")
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.value_name("style-components")
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.use_delimiter(true)
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.takes_value(true)
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.possible_values(&[
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"auto", "full", "plain", "changes", "header", "grid", "numbers",
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])
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.default_value("auto")
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.help("Additional info to display along with content"),
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.help("Comma-separated list of style elements to display")
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.long_help(
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"Configure which elements (line numbers, file headers, grid \
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borders, Git modifications, ..) to display in addition to the \
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file contents. The argument is a comma-separated list of \
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components to display (e.g. 'numbers,changes,grid') or a \
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pre-defined style ('full')",
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),
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)
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.arg(
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Arg::with_name("color")
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.long("color")
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.takes_value(true)
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.value_name("when")
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.possible_values(&["auto", "never", "always"])
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.default_value("auto")
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.help("When to use colors"),
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@ -82,14 +105,17 @@ impl App {
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Arg::with_name("paging")
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.long("paging")
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.takes_value(true)
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.value_name("when")
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.possible_values(&["auto", "never", "always"])
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.default_value("auto")
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.help("When to use the pager"),
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.help("When to use the pager")
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.long_help("Specify when to use the pager (less)"),
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)
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.arg(
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Arg::with_name("wrap")
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.long("wrap")
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.takes_value(true)
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.value_name("mode")
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.possible_values(&["character", "never"])
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.default_value("character")
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.help("When to wrap text"),
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@ -97,30 +123,46 @@ impl App {
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.arg(
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Arg::with_name("list-languages")
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.long("list-languages")
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.help("Displays supported languages"),
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.help("Displays supported languages")
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.long_help("Display a list of supported languages"),
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)
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.arg(
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Arg::with_name("theme")
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.long("theme")
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.takes_value(true)
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.help("Set the theme for highlighting"),
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.help("Set the theme for highlighting")
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.long_help(
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"Set the theme for syntax highlighting. Use '--list-themes' to \
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see all available themes",
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),
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)
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.arg(
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Arg::with_name("list-themes")
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.long("list-themes")
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.help("Displays supported themes"),
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.help("Displays supported themes")
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.help("Display a list of supported themes for syntax highlighting"),
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)
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.arg(
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Arg::with_name("number")
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.long("number")
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.short("n")
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.conflicts_with("style")
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.help("Alias for '--style=numbers'"),
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.help("Show line numbers (alias for '--style=numbers')")
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.long_help(
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"Show line numbers (no other decorations). This is an alias for \
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'--style=numbers'",
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),
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)
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.arg(
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Arg::with_name("unbuffered")
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.short("u")
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.help("(ignored)"),
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.help("(ignored)")
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// TODO: use '.hidden_short_help(true)' when the next clap version is released
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.long_help(
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"This option exists for POSIX-compliance reasons ('u' is for \
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'unbuffered'). The output is always unbuffered - this option \
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it simply ignored.",
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),
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)
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.subcommand(
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SubCommand::with_name("cache")
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@ -130,7 +172,10 @@ impl App {
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.long("init")
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.short("i")
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.help("Initialize the syntax/theme cache")
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.long_help("Initialize the syntax/theme cache by loading from the source directory (default: the configuration directory)"),
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.long_help(
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"Initialize the syntax/theme cache by loading from the \
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source directory (default: the configuration directory)",
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),
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)
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.arg(
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Arg::with_name("clear")
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@ -163,8 +208,10 @@ impl App {
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.requires("init")
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.takes_value(true)
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.value_name("dir")
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.help("Use a different source to store the cached syntax and theme set"),
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)
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.help(
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"Use a different source to store the cached syntax and theme set",
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),
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),
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)
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.help_message("Print this help message.")
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.version_message("Show version information.")
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sharkdp
6 years ago