git-check-ignore - Online in the Cloud

PROGRAM:

NAME

git-check-ignore - Debug gitignore / exclude files

SYNOPSIS

git check-ignore [options] pathname...
git check-ignore [options] --stdin

DESCRIPTION

For each pathname given via the command-line or from a file via --stdin, check whether the
file is excluded by .gitignore (or other input files to the exclude mechanism) and output
the path if it is excluded.

By default, tracked files are not shown at all since they are not subject to exclude
rules; but see ‘--no-index’.

OPTIONS

-q, --quiet
Don’t output anything, just set exit status. This is only valid with a single
pathname.

-v, --verbose
Also output details about the matching pattern (if any) for each given pathname. For
precedence rules within and between exclude sources, see gitignore(5).

--stdin
Read pathnames from the standard input, one per line, instead of from the
command-line.

-z
The output format is modified to be machine-parseable (see below). If --stdin is also
given, input paths are separated with a NUL character instead of a linefeed character.

-n, --non-matching
Show given paths which don’t match any pattern. This only makes sense when --verbose
is enabled, otherwise it would not be possible to distinguish between paths which
match a pattern and those which don’t.

--no-index
Don’t look in the index when undertaking the checks. This can be used to debug why a
path became tracked by e.g. git add . and was not ignored by the rules as expected
by the user or when developing patterns including negation to match a path previously
added with git add -f.

OUTPUT

By default, any of the given pathnames which match an ignore pattern will be output, one
per line. If no pattern matches a given path, nothing will be output for that path; this
means that path will not be ignored.

If --verbose is specified, the output is a series of lines of the form:

<source> <COLON> <linenum> <COLON> <pattern> <HT> <pathname>

<pathname> is the path of a file being queried, <pattern> is the matching pattern,
<source> is the pattern’s source file, and <linenum> is the line number of the pattern
within that source. If the pattern contained a ! prefix or / suffix, it will be preserved
in the output. <source> will be an absolute path when referring to the file configured by
core.excludesFile, or relative to the repository root when referring to .git/info/exclude
or a per-directory exclude file.

If -z is specified, the pathnames in the output are delimited by the null character; if
--verbose is also specified then null characters are also used instead of colons and hard
tabs:

<source> <NULL> <linenum> <NULL> <pattern> <NULL> <pathname> <NULL>

If -n or --non-matching are specified, non-matching pathnames will also be output, in
which case all fields in each output record except for <pathname> will be empty. This can
be useful when running non-interactively, so that files can be incrementally streamed to
STDIN of a long-running check-ignore process, and for each of these files, STDOUT will
indicate whether that file matched a pattern or not. (Without this option, it would be
impossible to tell whether the absence of output for a given file meant that it didn’t
match any pattern, or that the output hadn’t been generated yet.)

Buffering happens as documented under the GIT_FLUSH option in git(1). The caller is
responsible for avoiding deadlocks caused by overfilling an input buffer or reading from
an empty output buffer.

EXIT STATUS

0
One or more of the provided paths is ignored.

1
None of the provided paths are ignored.

128
A fatal error was encountered.

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