uncrustify

Format a single file

$ uncrustify -f [path/to/file.cpp] -o [path/to/output.cpp]

$ find . -name "*.cpp" | uncrustify -F - --replace

$ find . -name "*.cpp" | uncrustify -F - --no-backup

$ uncrustify -c [path/to/uncrustify.cfg] -f [path/to/file.cpp]

$ uncrustify --set [option]=[value]

$ uncrustify --update-config -o [path/to/new.cfg]

uncrustify [OPTIONS] [FILES]

If no input files are specified, the input is read from stdin.
If reading from stdin, you should specify the language using -l.

If -F is used or files are specified on the command line, the output filename is PFX + "/" + filename + SFX.
Unless, of course, the options --replace or --no-backup are used.

When reading from stdin or doing a single file via the '-f' option, the output is dumped to stdout, unless redirected with -o FILE.

Errors are always dumped to stderr

Basic Options:

-c CFG

Use the config file CFG, or defaults if CFG is set to '-'.
If not specified, uncrustify will use $UNCRUSTIFY_CONFIG or $HOME/.uncrustify.cfg.

-f FILE

Process the single file FILE, sending output to stdout or the file specified with -o.

-o FILE

Redirect output to FILE.
Use with -f, --update-config, --update-config-with-doc, --universalindent.

--check

Do not output the new text, instead verify that nothing changes when the file(s) are processed. The status of every file is printed to stderr. The exit code is EXIT_SUCCESS if there were no changes, EXIT_FAILURE otherwise.

-F FILE

Read files to process from FILE, one filename per line. If FILE is '-' then read filenames from standard input instead of a file.
You can create this file using something like 'find . -name "*.c" > list.txt'.
This cannot be combined with -f.

--prefix PFX

Prepend PFX to the output filename path.
This cannot be combined with -f, --replace, or --no-backup.

--suffix SFX

Append SFX to the output filename.
The default is '.uncrustify' if neither SFX or PFX are specified.
This cannot be combined with -f, --replace, or --no-backup.

--frag

Assume the input is a code fragment and the first line is properly indented.

--replace

Replace source files (creates a backup).
This cannot be combined with -f, --prefix, or --suffix.

--no-backup

Replace files, no backup. Useful if files are under source control
This cannot be combined with -f, --prefix, or --suffix.

--mtime

Preserve mtime on replaced files.

-l

Language override: C, CPP, D, CS, JAVA, PAWN, VALA, OC, OC+

-t

Load a file with types (usually not needed)

-q

Quiet mode - no output on stderr (-L will override)

Config/Help Options:

-h -? --help --usage

Print this message and exit

--version

Print the version and exit

--count-options

Print the number of available options and exit

--show-config

Print out option documentation and exit

--update-config

Output a new config file.

--update-config-with-doc

Output a new config file with embedded usage comments.

--universalindent

Output a config file for Universal Indent GUI.

--detect

Detects the config from a source file. Use with '-f FILE'. Detection is currently fairly limited.

Debug Options:

-p FILE

Dump debug info into FILE, or to stdout if FILE is set to '-'."
Must be used in combination with '-f FILE'."

-L SEV

Set the log severity (see log_levels.h)

-s

Show the log severity in the logs

--decode FLAG

Print FLAG as text and exit

Read a D file from stdin, output to stdout.

cat foo.d | uncrustify -q -c my.cfg -l d

Process a file, output to stdout.

uncrustify -c my.cfg -d foo.d

Process a source tree, output to a different tree.

find src -name "*.[ch]" > files.txt
uncrustify -c my.cfg -F files.txt --prefix out

Process a source tree in‐place.

uncrustify -c my.cfg --no-backup $(find src -name "*.[ch]")

Use comments containing ' *INDENT-OFF*' and ' *INDENT-ON*' to disable processing of parts of the source file.

Use the issue tracker at <http://sourceforge.net/projects/uncrustify>

Copyright (C) 2006‐2014 Ben Gardner
Copyright (C) 2015, 2016 Guy Maurel

GNU GPL version 2 or later <http://gnu.org/licenses/gpl.html>

This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Written by Ben Gardner