mirror of
https://github.com/sharkdp/bat.git
synced 2025-08-13 09:47:27 +02:00
Merge remote-tracking branch 'upstream/master' into bat_style
This commit is contained in:
sharkdp
405
src/app.rs
405
src/app.rs
@ -17,7 +17,7 @@ use errors::*;
|
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use line_range::LineRange;
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use style::{OutputComponent, OutputComponents, OutputWrap};
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#[derive(Debug, Clone, Copy)]
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#[derive(Debug, Clone, Copy, PartialEq)]
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pub enum PagingMode {
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Always,
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QuitIfOneScreen,
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@ -42,6 +42,10 @@ pub struct Config<'a> {
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/// The character width of the terminal
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pub term_width: usize,
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/// The width of tab characters.
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/// Currently, a value of 0 will cause tabs to be passed through without expanding them.
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pub tab_width: usize,
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/// Whether or not to simply loop through all input (`cat` mode)
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pub loop_through: bool,
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@ -131,7 +135,7 @@ impl App {
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to read from standard input.",
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).multiple(true)
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.empty_values(false),
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)
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)
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.arg(
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Arg::with_name("language")
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.short("l")
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@ -145,196 +149,210 @@ impl App {
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language names and file extensions."
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).takes_value(true),
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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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.conflicts_with("list-themes")
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.help("Display all supported languages.")
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.long_help("Display a list of supported languages for syntax highlighting."),
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).arg(
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Arg::with_name("theme")
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.long("theme")
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.overrides_with("theme")
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.takes_value(true)
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.help("Set the color theme for syntax 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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Arg::with_name("list-languages")
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.long("list-languages")
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.conflicts_with("list-themes")
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.help("Display all supported languages.")
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.long_help("Display a list of supported languages for syntax highlighting."),
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).arg(
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Arg::with_name("theme")
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.long("theme")
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.overrides_with("theme")
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.takes_value(true)
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.help("Set the color theme for syntax 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. To set a default theme, export the \
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BAT_THEME environment variable (e.g.: export \
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BAT_THEME=\"TwoDark\").",
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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("Display all supported highlighting themes.")
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.long_help("Display a list of supported themes for syntax highlighting."),
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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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.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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),
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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("Display all supported highlighting themes.")
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.long_help("Display a list of supported themes for syntax highlighting."),
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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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.help("Comma-separated list of style elements to display.")
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.long_help(
|
||||
"Configure which elements (line numbers, file headers, grid \
|
||||
borders, Git modifications, ..) to display in addition to the \
|
||||
file contents. The argument is a comma-separated list of \
|
||||
components to display (e.g. 'numbers,changes,grid') or a \
|
||||
pre-defined style ('full'). To set a default theme, export the \
|
||||
BAT_STYLE environment variable (e.g.: export BAT_STYLE=\"numbers\").",
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),
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).arg(
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Arg::with_name("plain")
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.overrides_with("plain")
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.short("p")
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.long("plain")
|
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.conflicts_with("style")
|
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.conflicts_with("number")
|
||||
.help("Show plain style (alias for '--style=plain').")
|
||||
.long_help(
|
||||
"Only show plain style, no decorations. This is an alias for \
|
||||
),
|
||||
).arg(
|
||||
Arg::with_name("plain")
|
||||
.overrides_with("plain")
|
||||
.short("p")
|
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.long("plain")
|
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.conflicts_with("style")
|
||||
.conflicts_with("number")
|
||||
.help("Show plain style (alias for '--style=plain').")
|
||||
.long_help(
|
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"Only show plain style, no decorations. This is an alias for \
|
||||
'--style=plain'",
|
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),
|
||||
).arg(
|
||||
Arg::with_name("number")
|
||||
.long("number")
|
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.overrides_with("number")
|
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.short("n")
|
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.conflicts_with("style")
|
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.help("Show line numbers (alias for '--style=numbers').")
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.long_help(
|
||||
"Only show line numbers, no other decorations. This is an alias for \
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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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.overrides_with("number")
|
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.short("n")
|
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.conflicts_with("style")
|
||||
.help("Show line numbers (alias for '--style=numbers').")
|
||||
.long_help(
|
||||
"Only 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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).arg(
|
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Arg::with_name("line-range")
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.long("line-range")
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.overrides_with("line-range")
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.takes_value(true)
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.value_name("N:M")
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.help("Only print the lines from N to M.")
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.long_help(
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"Only print the specified range of lines for each file. \
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||||
),
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).arg(
|
||||
Arg::with_name("line-range")
|
||||
.long("line-range")
|
||||
.overrides_with("line-range")
|
||||
.takes_value(true)
|
||||
.value_name("N:M")
|
||||
.help("Only print the lines from N to M.")
|
||||
.long_help(
|
||||
"Only print the specified range of lines for each file. \
|
||||
For example:\n \
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||||
'--line-range 30:40' prints lines 30 to 40\n \
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||||
'--line-range :40' prints lines 1 to 40\n \
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||||
'--line-range 40:' prints lines 40 to the end of the file",
|
||||
),
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||||
).arg(
|
||||
Arg::with_name("color")
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||||
.long("color")
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||||
.overrides_with("color")
|
||||
.takes_value(true)
|
||||
.value_name("when")
|
||||
.possible_values(&["auto", "never", "always"])
|
||||
.default_value("auto")
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||||
.help("When to use colors.")
|
||||
.long_help("Specify when to use colored output. The automatic mode \
|
||||
),
|
||||
).arg(
|
||||
Arg::with_name("color")
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||||
.long("color")
|
||||
.overrides_with("color")
|
||||
.takes_value(true)
|
||||
.value_name("when")
|
||||
.possible_values(&["auto", "never", "always"])
|
||||
.default_value("auto")
|
||||
.help("When to use colors.")
|
||||
.long_help("Specify when to use colored output. The automatic mode \
|
||||
only enables colors if an interactive terminal is detected."),
|
||||
).arg(
|
||||
Arg::with_name("decorations")
|
||||
.long("decorations")
|
||||
.overrides_with("decorations")
|
||||
.takes_value(true)
|
||||
.value_name("when")
|
||||
.possible_values(&["auto", "never", "always"])
|
||||
.default_value("auto")
|
||||
.help("When to show the decorations specified by '--style'.")
|
||||
.long_help("Specify when to use the decorations that have been specified \
|
||||
).arg(
|
||||
Arg::with_name("decorations")
|
||||
.long("decorations")
|
||||
.overrides_with("decorations")
|
||||
.takes_value(true)
|
||||
.value_name("when")
|
||||
.possible_values(&["auto", "never", "always"])
|
||||
.default_value("auto")
|
||||
.help("When to show the decorations specified by '--style'.")
|
||||
.long_help("Specify when to use the decorations that have been specified \
|
||||
via '--style'. The automatic mode only enables decorations if \
|
||||
an interactive terminal is detected."),
|
||||
).arg(
|
||||
Arg::with_name("paging")
|
||||
.long("paging")
|
||||
.overrides_with("paging")
|
||||
.takes_value(true)
|
||||
.value_name("when")
|
||||
.possible_values(&["auto", "never", "always"])
|
||||
.default_value("auto")
|
||||
.help("Specify when to use the pager.")
|
||||
.long_help("Specify when to use the pager. To control which pager \
|
||||
).arg(
|
||||
Arg::with_name("paging")
|
||||
.long("paging")
|
||||
.overrides_with("paging")
|
||||
.takes_value(true)
|
||||
.value_name("when")
|
||||
.possible_values(&["auto", "never", "always"])
|
||||
.default_value("auto")
|
||||
.help("Specify when to use the pager.")
|
||||
.long_help("Specify when to use the pager. To control which pager \
|
||||
is used, set the PAGER or BAT_PAGER environment \
|
||||
variables (the latter takes precedence). The default \
|
||||
pager is 'less'. To disable the pager permanently, set \
|
||||
BAT_PAGER to an empty string."),
|
||||
).arg(
|
||||
Arg::with_name("wrap")
|
||||
.long("wrap")
|
||||
.overrides_with("wrap")
|
||||
.takes_value(true)
|
||||
.value_name("mode")
|
||||
.possible_values(&["auto", "never", "character"])
|
||||
.default_value("auto")
|
||||
.help("Specify the text-wrapping mode.")
|
||||
.long_help("Specify the text-wrapping mode."),
|
||||
).arg(
|
||||
Arg::with_name("unbuffered")
|
||||
.short("u")
|
||||
.hidden_short_help(true)
|
||||
.long_help(
|
||||
"This option exists for POSIX-compliance reasons ('u' is for \
|
||||
).arg(
|
||||
Arg::with_name("wrap")
|
||||
.long("wrap")
|
||||
.overrides_with("wrap")
|
||||
.takes_value(true)
|
||||
.value_name("mode")
|
||||
.possible_values(&["auto", "never", "character"])
|
||||
.default_value("auto")
|
||||
.help("Specify the text-wrapping mode.")
|
||||
.long_help("Specify the text-wrapping mode."),
|
||||
).arg(
|
||||
Arg::with_name("unbuffered")
|
||||
.short("u")
|
||||
.hidden_short_help(true)
|
||||
.long_help(
|
||||
"This option exists for POSIX-compliance reasons ('u' is for \
|
||||
'unbuffered'). The output is always unbuffered - this option \
|
||||
is simply ignored.",
|
||||
),
|
||||
).arg(
|
||||
Arg::with_name("tabs")
|
||||
.long("tabs")
|
||||
.takes_value(true)
|
||||
.value_name("tabs")
|
||||
.validator(
|
||||
|t| t.parse::<u32>()
|
||||
.map_err(|_t| "must be a number")
|
||||
.map(|_t| ()) // Convert to Result<(), &str>
|
||||
.map_err(|e| e.to_string()) // Convert to Result<(), String>
|
||||
)
|
||||
.help("Sets the tab width.")
|
||||
.long_help("Sets the tab width. Use a width of 0 to pass tabs through \
|
||||
directly"),
|
||||
).arg(
|
||||
Arg::with_name("terminal-width")
|
||||
.long("terminal-width")
|
||||
.takes_value(true)
|
||||
.value_name("width")
|
||||
.hidden(true)
|
||||
.help("Set the width of the terminal"),
|
||||
).subcommand(
|
||||
SubCommand::with_name("cache")
|
||||
.about("Modify the syntax-definition and theme cache")
|
||||
.arg(
|
||||
Arg::with_name("init")
|
||||
.long("init")
|
||||
.short("i")
|
||||
.help("Initialize the syntax/theme cache.")
|
||||
.long_help(
|
||||
"Initialize the syntax/theme cache by loading from the \
|
||||
source directory (default: the configuration directory).",
|
||||
),
|
||||
).arg(
|
||||
Arg::with_name("clear")
|
||||
.long("clear")
|
||||
.short("c")
|
||||
.help("Remove the cached syntax definitions and themes."),
|
||||
).arg(
|
||||
Arg::with_name("config-dir")
|
||||
.long("config-dir")
|
||||
.short("d")
|
||||
.help("Show bat's configuration directory."),
|
||||
).group(
|
||||
ArgGroup::with_name("cache-actions")
|
||||
.args(&["init", "clear", "config-dir"])
|
||||
.required(arg_group_required),
|
||||
).arg(
|
||||
Arg::with_name("source")
|
||||
.long("source")
|
||||
.requires("init")
|
||||
.takes_value(true)
|
||||
.value_name("dir")
|
||||
.help("Use a different directory to load syntaxes and themes from."),
|
||||
).arg(
|
||||
Arg::with_name("target")
|
||||
.long("target")
|
||||
.requires("init")
|
||||
.takes_value(true)
|
||||
.value_name("dir")
|
||||
.help(
|
||||
"Use a different directory to store the cached syntax and theme set.",
|
||||
),
|
||||
).arg(
|
||||
Arg::with_name("terminal-width")
|
||||
.long("terminal-width")
|
||||
.takes_value(true)
|
||||
.value_name("width")
|
||||
.hidden(true)
|
||||
.help("Set the width of the terminal"),
|
||||
).subcommand(
|
||||
SubCommand::with_name("cache")
|
||||
.about("Modify the syntax-definition and theme cache")
|
||||
.arg(
|
||||
Arg::with_name("init")
|
||||
.long("init")
|
||||
.short("i")
|
||||
.help("Initialize the syntax/theme cache.")
|
||||
.long_help(
|
||||
"Initialize the syntax/theme cache by loading from the \
|
||||
source directory (default: the configuration directory).",
|
||||
),
|
||||
).arg(
|
||||
Arg::with_name("clear")
|
||||
.long("clear")
|
||||
.short("c")
|
||||
.help("Remove the cached syntax definitions and themes."),
|
||||
).arg(
|
||||
Arg::with_name("config-dir")
|
||||
.long("config-dir")
|
||||
.short("d")
|
||||
.help("Show bat's configuration directory."),
|
||||
).group(
|
||||
ArgGroup::with_name("cache-actions")
|
||||
.args(&["init", "clear", "config-dir"])
|
||||
.required(arg_group_required),
|
||||
).arg(
|
||||
Arg::with_name("source")
|
||||
.long("source")
|
||||
.requires("init")
|
||||
.takes_value(true)
|
||||
.value_name("dir")
|
||||
.help("Use a different directory to load syntaxes and themes from."),
|
||||
).arg(
|
||||
Arg::with_name("target")
|
||||
.long("target")
|
||||
.requires("init")
|
||||
.takes_value(true)
|
||||
.value_name("dir")
|
||||
.help(
|
||||
"Use a different directory to store the cached syntax and theme set.",
|
||||
),
|
||||
).arg(
|
||||
Arg::with_name("blank")
|
||||
.long("blank")
|
||||
.requires("init")
|
||||
.help("Create completely new syntax and theme sets \
|
||||
Arg::with_name("blank")
|
||||
.long("blank")
|
||||
.requires("init")
|
||||
.help("Create completely new syntax and theme sets \
|
||||
(instead of appending to the default sets).")
|
||||
),
|
||||
).help_message("Print this help message.")
|
||||
),
|
||||
).help_message("Print this help message.")
|
||||
.version_message("Show version information.")
|
||||
.get_matches()
|
||||
}
|
||||
@ -343,6 +361,27 @@ impl App {
|
||||
let files = self.files();
|
||||
let output_components = self.output_components()?;
|
||||
|
||||
let paging_mode = match self.matches.value_of("paging") {
|
||||
Some("always") => PagingMode::Always,
|
||||
Some("never") => PagingMode::Never,
|
||||
Some("auto") | _ => if files.contains(&InputFile::StdIn) {
|
||||
// If we are reading from stdin, only enable paging if we write to an
|
||||
// interactive terminal and if we do not *read* from an interactive
|
||||
// terminal.
|
||||
if self.interactive_output && !atty::is(Stream::Stdin) {
|
||||
PagingMode::QuitIfOneScreen
|
||||
} else {
|
||||
PagingMode::Never
|
||||
}
|
||||
} else {
|
||||
if self.interactive_output {
|
||||
PagingMode::QuitIfOneScreen
|
||||
} else {
|
||||
PagingMode::Never
|
||||
}
|
||||
},
|
||||
};
|
||||
|
||||
Ok(Config {
|
||||
true_color: is_truecolor_terminal(),
|
||||
language: self.matches.value_of("language"),
|
||||
@ -366,26 +405,7 @@ impl App {
|
||||
Some("never") => false,
|
||||
Some("auto") | _ => self.interactive_output,
|
||||
},
|
||||
paging_mode: match self.matches.value_of("paging") {
|
||||
Some("always") => PagingMode::Always,
|
||||
Some("never") => PagingMode::Never,
|
||||
Some("auto") | _ => if files.contains(&InputFile::StdIn) {
|
||||
// If we are reading from stdin, only enable paging if we write to an
|
||||
// interactive terminal and if we do not *read* from an interactive
|
||||
// terminal.
|
||||
if self.interactive_output && !atty::is(Stream::Stdin) {
|
||||
PagingMode::QuitIfOneScreen
|
||||
} else {
|
||||
PagingMode::Never
|
||||
}
|
||||
} else {
|
||||
if self.interactive_output {
|
||||
PagingMode::QuitIfOneScreen
|
||||
} else {
|
||||
PagingMode::Never
|
||||
}
|
||||
},
|
||||
},
|
||||
paging_mode,
|
||||
term_width: self
|
||||
.matches
|
||||
.value_of("terminal-width")
|
||||
@ -395,6 +415,19 @@ impl App {
|
||||
|| self.matches.value_of("color") == Some("always")
|
||||
|| self.matches.value_of("decorations") == Some("always")),
|
||||
files,
|
||||
tab_width: self
|
||||
.matches
|
||||
.value_of("tabs")
|
||||
.map(String::from)
|
||||
.or_else(|| env::var("BAT_TABS").ok())
|
||||
.and_then(|t| t.parse().ok())
|
||||
.unwrap_or(
|
||||
if output_components.plain() && paging_mode == PagingMode::Never {
|
||||
0
|
||||
} else {
|
||||
8
|
||||
},
|
||||
),
|
||||
theme: self
|
||||
.matches
|
||||
.value_of("theme")
|
||||
|
||||
@ -24,6 +24,7 @@ mod decorations;
|
||||
mod diff;
|
||||
mod line_range;
|
||||
mod output;
|
||||
mod preprocessor;
|
||||
mod printer;
|
||||
mod style;
|
||||
mod terminal;
|
||||
|
||||
34
src/preprocessor.rs
Normal file
34
src/preprocessor.rs
Normal file
@ -0,0 +1,34 @@
|
||||
use console::AnsiCodeIterator;
|
||||
|
||||
/// Expand tabs like an ANSI-enabled expand(1).
|
||||
pub fn expand(line: &str, width: usize, cursor: &mut usize) -> String {
|
||||
let mut buffer = String::with_capacity(line.len() * 2);
|
||||
|
||||
for chunk in AnsiCodeIterator::new(line) {
|
||||
match chunk {
|
||||
(text, true) => buffer.push_str(text),
|
||||
(mut text, false) => {
|
||||
while let Some(index) = text.find('\t') {
|
||||
// Add previous text.
|
||||
if index > 0 {
|
||||
*cursor += index;
|
||||
buffer.push_str(&text[0..index]);
|
||||
}
|
||||
|
||||
// Add tab.
|
||||
let spaces = width - (*cursor % width);
|
||||
*cursor += spaces;
|
||||
buffer.push_str(&*" ".repeat(spaces));
|
||||
|
||||
// Next.
|
||||
text = &text[index + 1..text.len()];
|
||||
}
|
||||
|
||||
*cursor += text.len();
|
||||
buffer.push_str(text);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
buffer
|
||||
}
|
||||
@ -16,6 +16,7 @@ use decorations::{Decoration, GridBorderDecoration, LineChangesDecoration, LineN
|
||||
use diff::get_git_diff;
|
||||
use diff::LineChanges;
|
||||
use errors::*;
|
||||
use preprocessor::expand;
|
||||
use style::OutputWrap;
|
||||
use terminal::{as_terminal_escaped, to_ansi_color};
|
||||
|
||||
@ -113,9 +114,13 @@ impl<'a> InteractivePrinter<'a> {
|
||||
}
|
||||
|
||||
// Get the Git modifications
|
||||
let line_changes = match file {
|
||||
InputFile::Ordinary(filename) => get_git_diff(filename),
|
||||
_ => None,
|
||||
let line_changes = if config.output_components.changes() {
|
||||
match file {
|
||||
InputFile::Ordinary(filename) => get_git_diff(filename),
|
||||
_ => None,
|
||||
}
|
||||
} else {
|
||||
None
|
||||
};
|
||||
|
||||
// Determine the type of syntax for highlighting
|
||||
@ -148,6 +153,14 @@ impl<'a> InteractivePrinter<'a> {
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn preprocess(&self, text: &str, cursor: &mut usize) -> String {
|
||||
if self.config.tab_width > 0 {
|
||||
expand(text, self.config.tab_width, cursor)
|
||||
} else {
|
||||
text.to_string()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> Printer for InteractivePrinter<'a> {
|
||||
@ -200,7 +213,7 @@ impl<'a> Printer for InteractivePrinter<'a> {
|
||||
line_number: usize,
|
||||
line_buffer: &[u8],
|
||||
) -> Result<()> {
|
||||
let line = String::from_utf8_lossy(&line_buffer);
|
||||
let line = String::from_utf8_lossy(&line_buffer).to_string();
|
||||
let regions = self.highlighter.highlight(line.as_ref());
|
||||
|
||||
if out_of_range {
|
||||
@ -209,6 +222,7 @@ impl<'a> Printer for InteractivePrinter<'a> {
|
||||
|
||||
let mut cursor: usize = 0;
|
||||
let mut cursor_max: usize = self.config.term_width;
|
||||
let mut cursor_total: usize = 0;
|
||||
let mut panel_wrap: Option<String> = None;
|
||||
|
||||
// Line decorations.
|
||||
@ -230,19 +244,18 @@ impl<'a> Printer for InteractivePrinter<'a> {
|
||||
let true_color = self.config.true_color;
|
||||
let colored_output = self.config.colored_output;
|
||||
|
||||
write!(
|
||||
handle,
|
||||
"{}",
|
||||
regions
|
||||
.iter()
|
||||
.map(|&(style, text)| as_terminal_escaped(
|
||||
style,
|
||||
text,
|
||||
true_color,
|
||||
colored_output,
|
||||
)).collect::<Vec<_>>()
|
||||
.join("")
|
||||
)?;
|
||||
for &(style, region) in regions.iter() {
|
||||
let text = &*self.preprocess(region, &mut cursor_total);
|
||||
write!(
|
||||
handle,
|
||||
"{}",
|
||||
as_terminal_escaped(style, &*text, true_color, colored_output,)
|
||||
)?;
|
||||
}
|
||||
|
||||
if line.bytes().next_back() != Some(b'\n') {
|
||||
write!(handle, "\n")?;
|
||||
}
|
||||
} else {
|
||||
for &(style, region) in regions.iter() {
|
||||
let mut ansi_iterator = AnsiCodeIterator::new(region);
|
||||
@ -265,7 +278,11 @@ impl<'a> Printer for InteractivePrinter<'a> {
|
||||
|
||||
// Regular text.
|
||||
(text, false) => {
|
||||
let text = text.trim_right_matches(|c| c == '\r' || c == '\n');
|
||||
let text = self.preprocess(
|
||||
text.trim_right_matches(|c| c == '\r' || c == '\n'),
|
||||
&mut cursor_total,
|
||||
);
|
||||
|
||||
let mut chars = text.chars();
|
||||
let mut remaining = text.chars().count();
|
||||
|
||||
|
||||
Reference in New Issue
Block a user