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-rw-r--r--Documentation/git-describe.txt42
1 files changed, 30 insertions, 12 deletions
diff --git a/Documentation/git-describe.txt b/Documentation/git-describe.txt
index 26f19d3b07..e027fb8c4b 100644
--- a/Documentation/git-describe.txt
+++ b/Documentation/git-describe.txt
@@ -3,14 +3,14 @@ git-describe(1)
NAME
----
-git-describe - Describe a commit using the most recent tag reachable from it
-
+git-describe - Give an object a human readable name based on an available ref
SYNOPSIS
--------
[verse]
'git describe' [--all] [--tags] [--contains] [--abbrev=<n>] [<commit-ish>...]
'git describe' [--all] [--tags] [--contains] [--abbrev=<n>] --dirty[=<mark>]
+'git describe' <blob>
DESCRIPTION
-----------
@@ -24,6 +24,12 @@ By default (without --all or --tags) `git describe` only shows
annotated tags. For more information about creating annotated tags
see the -a and -s options to linkgit:git-tag[1].
+If the given object refers to a blob, it will be described
+as `<commit-ish>:<path>`, such that the blob can be found
+at `<path>` in the `<commit-ish>`, which itself describes the
+first commit in which this blob occurs in a reverse revision walk
+from HEAD.
+
OPTIONS
-------
<commit-ish>...::
@@ -87,19 +93,23 @@ OPTIONS
--match <pattern>::
Only consider tags matching the given `glob(7)` pattern,
- excluding the "refs/tags/" prefix. This can be used to avoid
- leaking private tags from the repository. If given multiple times, a
- list of patterns will be accumulated, and tags matching any of the
- patterns will be considered. Use `--no-match` to clear and reset the
- list of patterns.
+ excluding the "refs/tags/" prefix. If used with `--all`, it also
+ considers local branches and remote-tracking references matching the
+ pattern, excluding respectively "refs/heads/" and "refs/remotes/"
+ prefix; references of other types are never considered. If given
+ multiple times, a list of patterns will be accumulated, and tags
+ matching any of the patterns will be considered. Use `--no-match` to
+ clear and reset the list of patterns.
--exclude <pattern>::
Do not consider tags matching the given `glob(7)` pattern, excluding
- the "refs/tags/" prefix. This can be used to narrow the tag space and
- find only tags matching some meaningful criteria. If given multiple
- times, a list of patterns will be accumulated and tags matching any
- of the patterns will be excluded. When combined with --match a tag will
- be considered when it matches at least one --match pattern and does not
+ the "refs/tags/" prefix. If used with `--all`, it also does not consider
+ local branches and remote-tracking references matching the pattern,
+ excluding respectively "refs/heads/" and "refs/remotes/" prefix;
+ references of other types are never considered. If given multiple times,
+ a list of patterns will be accumulated and tags matching any of the
+ patterns will be excluded. When combined with --match a tag will be
+ considered when it matches at least one --match pattern and does not
match any of the --exclude patterns. Use `--no-exclude` to clear and
reset the list of patterns.
@@ -182,6 +192,14 @@ selected and output. Here fewest commits different is defined as
the number of commits which would be shown by `git log tag..input`
will be the smallest number of commits possible.
+BUGS
+----
+
+Tree objects as well as tag objects not pointing at commits, cannot be described.
+When describing blobs, the lightweight tags pointing at blobs are ignored,
+but the blob is still described as <committ-ish>:<path> despite the lightweight
+tag being favorable.
+
GIT
---
Part of the linkgit:git[1] suite