gitignore.txt: make slash-rules more readable
Make all paragraphs valid, even if they are not read
in strict order. Make paragraph better understandable
for pattern without slash. Add sentece and example
for pattern with slash. Be precise whenever a trailing
slashe would make a difference. Add some examples.
Signed-off-by: Dr. Adam Nielsen <admin@xxxxxxxxxx>
---
Documentation/gitignore.txt | 58 +++++++++++++++++++++++--------------
1 file changed, 37 insertions(+), 21 deletions(-)
diff --git a/Documentation/gitignore.txt b/Documentation/gitignore.txt
index b5bc9dbff0..584c82c7df 100644
--- a/Documentation/gitignore.txt
+++ b/Documentation/gitignore.txt
@@ -89,28 +89,44 @@ PATTERN FORMAT
Put a backslash ("`\`") in front of the first "`!`" for patterns
that begin with a literal "`!`", for example, "`\!important!.txt`".
- - If the pattern ends with a slash, it is removed for the
- purpose of the following description, but it would only find
+ - A slash `/` is used as a directory separator. A leading and trailing
+ slash have special meaning and are explained in the following.
+
+ - If the pattern ends with a slash, it would only find
a match with a directory. In other words, `foo/` will match a
- directory `foo` and paths underneath it, but will not match a
- regular file or a symbolic link `foo` (this is consistent
- with the way how pathspec works in general in Git).
-
- - If the pattern does not contain a slash '/', Git treats it as
- a shell glob pattern and checks for a match against the
- pathname relative to the location of the `.gitignore` file
- (relative to the toplevel of the work tree if not from a
- `.gitignore` file).
-
- - Otherwise, Git treats the pattern as a shell glob: "`*`" matches
- anything except "`/`", "`?`" matches any one character except "`/`"
- and "`[]`" matches one character in a selected range. See
- fnmatch(3) and the FNM_PATHNAME flag for a more detailed
- description.
-
- - A leading slash matches the beginning of the pathname.
- For example, "/{asterisk}.c" matches "cat-file.c" but not
- "mozilla-sha1/sha1.c".
+ directory `foo`, but will not match a regular file or a
+ symbolic link `foo` (this is consistent with the way how
+ pathspec works in general in Git).
+
+ - If the pattern does not end with a slash, it would find a match
+ with a file or directory.
+
+ - If the pattern contains no slash or only a trailing slash,
+ the pattern is matched against all files and folders (recursively)
+ from the location of the `.gitignore` file.
+ For example, `frotz/` matches `frotz` and `a/frotz` that
+ is a directory (relative from the `.gitignore` file).
+ Otherwise the pattern is matched relative to the
+ location of the `.gitignore` file.
+ For example, `doc/frotz/` matches `doc/frotz` directory, but not
+ `a/doc/frotz` (relative from the `.gitignore` file).
+
+ - The above pargraph also includes the case of a leading slash.
+ For example, the pattern `/bar` only matches the file or
+ folder `bar` that is at the same location as the `gitignore`
+ file. Whereas the pattern `bar` would also match in folders
+ below the `gitignore` file. Note that the pattern `doc/frotz`
+ and `/doc/frotz` have the same effect in any `.gitignore` file.
+
+ - An asterisk "`*`" matches anything except a slash.
+ A pattern "foo/*", for example, matches "foo/test.json"
+ (a regular file), "foo/bar" (a diretory), but it does not match
+ "foo/bar/hello.c" (a regular file), as the asterisk in the
+ patter does not match "bar/hello.c" which has a slash in it.
+ The character "`?`" matches any one character except "`/`".
+ The range notation, e.g. `[a-zA-Z]`, can be used to match
+ one of the characters in a range. See fnmatch(3) and the
+ FNM_PATHNAME flag for a more detailed description.
Two consecutive asterisks ("`**`") in patterns matched against
full pathname may have special meaning:
--
2.17.1
