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Merge pull request #2430 from Enselic/blessable-help

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Require changes to `-h` and `--help` to be blessed
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David Peter 2023-01-17 15:29:13 +01:00 committed by GitHub
commit 5cd77662b5
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7 changed files with 235 additions and 13 deletions
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14
.github/workflows/CICD.yml vendored
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@ -146,18 +146,6 @@ jobs:
toolchain: stable
default: true
profile: minimal
- name: Print -h
uses: actions-rs/cargo@v1
with:
command: run
args: --locked -- -h
- name: Print --help
uses: actions-rs/cargo@v1
with:
command: run
args: --locked -- --help
- name: Show man page
run: man $(find . -name bat.1)
- name: Check documentation
env:
RUSTDOCFLAGS: -D warnings
@ -165,6 +153,8 @@ jobs:
with:
command: doc
args: --locked --no-deps --document-private-items --all-features
- name: Show man page
run: man $(find . -name bat.1)
build:
name: ${{ matrix.job.target }} (${{ matrix.job.os }})

17
Cargo.lock generated
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@ -89,6 +89,7 @@ dependencies = [
"content_inspector",
"dirs-next",
"encoding",
"expect-test",
"flate2",
"git2",
"globset",
@ -286,6 +287,12 @@ dependencies = [
"winapi",
]
[[package]]
name = "dissimilar"
version = "1.0.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "bd5f0c7e4bd266b8ab2550e6238d2e74977c23c15536ac7be45e9c95e2e3fbbb"
[[package]]
name = "doc-comment"
version = "0.3.3"
@ -389,6 +396,16 @@ dependencies = [
"libc",
]
[[package]]
name = "expect-test"
version = "1.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1d4661aca38d826eb7c72fe128e4238220616de4c0cc00db7bfc38e2e1364dd3"
dependencies = [
"dissimilar",
"once_cell",
]
[[package]]
name = "fancy-regex"
version = "0.7.1"

1
Cargo.toml
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@ -83,6 +83,7 @@ features = ["wrap_help", "cargo"]
[dev-dependencies]
assert_cmd = "2.0.5"
expect-test = "1.4.0"
serial_test = "0.6.0"
predicates = "2.1.5"
wait-timeout = "0.2.0"

160
doc/long-help.txt Normal file
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@ -0,0 +1,160 @@
A cat(1) clone with syntax highlighting and Git integration.
Usage: bat [OPTIONS] [FILE]...
bat <COMMAND>
Arguments:
[FILE]...
File(s) to print / concatenate. Use a dash ('-') or no argument at all to read from
standard input.
Options:
-A, --show-all
Show non-printable characters like space, tab or newline. This option can also be used to
print binary files. Use '--tabs' to control the width of the tab-placeholders.
-p, --plain...
Only show plain style, no decorations. This is an alias for '--style=plain'. When '-p' is
used twice ('-pp'), it also disables automatic paging (alias for '--style=plain
--paging=never').
-l, --language <language>
Explicitly set the language for syntax highlighting. The language can be specified as a
name (like 'C++' or 'LaTeX') or possible file extension (like 'cpp', 'hpp' or 'md'). Use
'--list-languages' to show all supported language names and file extensions.
-H, --highlight-line <N:M>
Highlight the specified line ranges with a different background color For example:
'--highlight-line 40' highlights line 40
'--highlight-line 30:40' highlights lines 30 to 40
'--highlight-line :40' highlights lines 1 to 40
'--highlight-line 40:' highlights lines 40 to the end of the file
'--highlight-line 30:+10' highlights lines 30 to 40
--file-name <name>
Specify the name to display for a file. Useful when piping data to bat from STDIN when bat
does not otherwise know the filename. Note that the provided file name is also used for
syntax detection.
-d, --diff
Only show lines that have been added/removed/modified with respect to the Git index. Use
--diff-context=N to control how much context you want to see.
--diff-context <N>
Include N lines of context around added/removed/modified lines when using '--diff'.
--tabs <T>
Set the tab width to T spaces. Use a width of 0 to pass tabs through directly
--wrap <mode>
Specify the text-wrapping mode (*auto*, never, character). The '--terminal-width' option
can be used in addition to control the output width.
-S, --chop-long-lines
Truncate all lines longer than screen width. Alias for '--wrap=never'.
--terminal-width <width>
Explicitly set the width of the terminal instead of determining it automatically. If
prefixed with '+' or '-', the value will be treated as an offset to the actual terminal
width. See also: '--wrap'.
-n, --number
Only show line numbers, no other decorations. This is an alias for '--style=numbers'
--color <when>
Specify when to use colored output. The automatic mode only enables colors if an
interactive terminal is detected - colors are automatically disabled if the output goes to
a pipe.
Possible values: *auto*, never, always.
--italic-text <when>
Specify when to use ANSI sequences for italic text in the output. Possible values: always,
*never*.
--decorations <when>
Specify when to use the decorations that have been specified via '--style'. The automatic
mode only enables decorations if an interactive terminal is detected. Possible values:
*auto*, never, always.
-f, --force-colorization
Alias for '--decorations=always --color=always'. This is useful if the output of bat is
piped to another program, but you want to keep the colorization/decorations.
--paging <when>
Specify when to use the pager. To disable the pager, use --paging=never' or its
alias,'-P'. To disable the pager permanently, set BAT_PAGER to an empty string. To control
which pager is used, see the '--pager' option. Possible values: *auto*, never, always.
--pager <command>
Determine which pager is used. This option will override the PAGER and BAT_PAGER
environment variables. The default pager is 'less'. To control when the pager is used, see
the '--paging' option. Example: '--pager "less -RF"'.
-m, --map-syntax <glob:syntax>
Map a glob pattern to an existing syntax name. The glob pattern is matched on the full
path and the filename. For example, to highlight *.build files with the Python syntax, use
-m '*.build:Python'. To highlight files named '.myignore' with the Git Ignore syntax, use
-m '.myignore:Git Ignore'. Note that the right-hand side is the *name* of the syntax, not
a file extension.
--ignored-suffix <ignored-suffix>
Ignore extension. For example:
'bat --ignored-suffix ".dev" my_file.json.dev' will use JSON syntax, and ignore '.dev'
--theme <theme>
Set the theme for syntax highlighting. Use '--list-themes' to see all available themes. To
set a default theme, add the '--theme="..."' option to the configuration file or export
the BAT_THEME environment variable (e.g.: export BAT_THEME="...").
--list-themes
Display a list of supported themes for syntax highlighting.
--style <components>
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 style, add the '--style=".."' option to the configuration file or export the
BAT_STYLE environment variable (e.g.: export BAT_STYLE="..").
Possible values:
* default: enables recommended style components (default).
* full: enables all available components.
* auto: same as 'default', unless the output is piped.
* plain: disables all available components.
* changes: show Git modification markers.
* header: alias for 'header-filename'.
* header-filename: show filenames before the content.
* header-filesize: show file sizes before the content.
* grid: vertical/horizontal lines to separate side bar
and the header from the content.
* rule: horizontal lines to delimit files.
* numbers: show line numbers in the side bar.
* snip: draw separation lines between distinct line ranges.
-r, --line-range <N:M>
Only print the specified range of lines for each file. For example:
'--line-range 30:40' prints lines 30 to 40
'--line-range :40' prints lines 1 to 40
'--line-range 40:' prints lines 40 to the end of the file
'--line-range 40' only prints line 40
'--line-range 30:+10' prints lines 30 to 40
-L, --list-languages
Display a list of supported languages for syntax highlighting.
-u, --unbuffered
This option exists for POSIX-compliance reasons ('u' is for 'unbuffered'). The output is
always unbuffered - this option is simply ignored.
--diagnostic
Show diagnostic information for bug reports.
--acknowledgements
Show acknowledgements.
-h, --help
Print help information (use `-h` for a summary)
-V, --version
Print version information

2
doc/release-checklist.md
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@ -20,7 +20,7 @@
## Documentation
- [ ] Review `-h`, `--help`, and the `man` page. All of these are shown in
- [ ] Review [`-h`](./short-help.txt), [`--help`](./long-help.txt), and the `man` page. The `man` page is shown in
the output of the CI job called *Documentation*, so look there.
The CI workflow corresponding to the tip of the master branch is a good place to look.

36
doc/short-help.txt Normal file
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@ -0,0 +1,36 @@
A cat(1) clone with wings.
Usage: bat [OPTIONS] [FILE]...
bat <COMMAND>
Arguments:
[FILE]... File(s) to print / concatenate. Use '-' for standard input.
Options:
-A, --show-all Show non-printable characters (space, tab, newline, ..).
-p, --plain... Show plain style (alias for '--style=plain').
-l, --language <language> Set the language for syntax highlighting.
-H, --highlight-line <N:M> Highlight lines N through M.
--file-name <name> Specify the name to display for a file.
-d, --diff Only show lines that have been added/removed/modified.
--tabs <T> Set the tab width to T spaces.
--wrap <mode> Specify the text-wrapping mode (*auto*, never, character).
-S, --chop-long-lines Truncate all lines longer than screen width. Alias for
'--wrap=never'.
-n, --number Show line numbers (alias for '--style=numbers').
--color <when> When to use colors (*auto*, never, always).
--italic-text <when> Use italics in output (always, *never*)
--decorations <when> When to show the decorations (*auto*, never, always).
--paging <when> Specify when to use the pager, or use `-P` to disable (*auto*,
never, always).
-m, --map-syntax <glob:syntax> Use the specified syntax for files matching the glob pattern
('*.cpp:C++').
--theme <theme> Set the color theme for syntax highlighting.
--list-themes Display all supported highlighting themes.
--style <components> Comma-separated list of style elements to display (*default*,
auto, full, plain, changes, header, header-filename,
header-filesize, grid, rule, numbers, snip).
-r, --line-range <N:M> Only print the lines from N to M.
-L, --list-languages Display all supported languages.
-h, --help Print help information (use `--help` for more detail)
-V, --version Print version information

18
tests/integration_tests.rs
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@ -200,6 +200,24 @@ fn line_range_multiple() {
.stdout("line 1\nline 2\nline 4\n");
}
#[test]
#[cfg_attr(any(not(feature = "git"), target_os = "windows"), ignore)]
fn short_help() {
test_help("-h", "../doc/short-help.txt");
}
#[test]
#[cfg_attr(any(not(feature = "git"), target_os = "windows"), ignore)]
fn long_help() {
test_help("--help", "../doc/long-help.txt");
}
fn test_help(arg: &str, expect_file: &str) {
let assert = bat().arg(arg).assert();
expect_test::expect_file![expect_file]
.assert_eq(&String::from_utf8_lossy(&assert.get_output().stdout));
}
#[cfg(unix)]
fn setup_temp_file(content: &[u8]) -> io::Result<(PathBuf, tempfile::TempDir)> {
let dir = tempfile::tempdir().expect("Couldn't create tempdir");