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-rw-r--r--Documentation/git-for-each-ref.txt148
1 files changed, 135 insertions, 13 deletions
diff --git a/Documentation/git-for-each-ref.txt b/Documentation/git-for-each-ref.txt
index 42408752d0..03e187a105 100644
--- a/Documentation/git-for-each-ref.txt
+++ b/Documentation/git-for-each-ref.txt
@@ -10,6 +10,8 @@ SYNOPSIS
[verse]
'git for-each-ref' [--count=<count>] [--shell|--perl|--python|--tcl]
[(--sort=<key>)...] [--format=<format>] [<pattern>...]
+ [--points-at <object>] [(--merged | --no-merged) [<object>]]
+ [--contains [<object>]] [--no-contains [<object>]]
DESCRIPTION
-----------
@@ -62,6 +64,29 @@ OPTIONS
the specified host language. This is meant to produce
a scriptlet that can directly be `eval`ed.
+--points-at <object>::
+ Only list refs which points at the given object.
+
+--merged [<object>]::
+ Only list refs whose tips are reachable from the
+ specified commit (HEAD if not specified),
+ incompatible with `--no-merged`.
+
+--no-merged [<object>]::
+ Only list refs whose tips are not reachable from the
+ specified commit (HEAD if not specified),
+ incompatible with `--merged`.
+
+--contains [<object>]::
+ Only list refs which contain the specified commit (HEAD if not
+ specified).
+
+--no-contains [<object>]::
+ Only list refs which don't contain the specified commit (HEAD
+ if not specified).
+
+--ignore-case::
+ Sorting and filtering refs are case insensitive.
FIELD NAMES
-----------
@@ -76,7 +101,20 @@ refname::
The name of the ref (the part after $GIT_DIR/).
For a non-ambiguous short name of the ref append `:short`.
The option core.warnAmbiguousRefs is used to select the strict
- abbreviation mode.
+ abbreviation mode. If `lstrip=<N>` (`rstrip=<N>`) is appended, strips `<N>`
+ slash-separated path components from the front (back) of the refname
+ (e.g. `%(refname:lstrip=2)` turns `refs/tags/foo` into `foo` and
+ `%(refname:rstrip=2)` turns `refs/tags/foo` into `refs`).
+ If `<N>` is a negative number, strip as many path components as
+ necessary from the specified end to leave `-<N>` path components
+ (e.g. `%(refname:lstrip=-2)` turns
+ `refs/tags/foo` into `tags/foo` and `%(refname:rstrip=-1)`
+ turns `refs/tags/foo` into `refs`). When the ref does not have
+ enough components, the result becomes an empty string if
+ stripping with positive <N>, or it becomes the full refname if
+ stripping with negative <N>. Neither is an error.
++
+`strip` can be used as a synomym to `lstrip`.
objecttype::
The type of the object (`blob`, `tree`, `commit`, `tag`).
@@ -87,15 +125,31 @@ objectsize::
objectname::
The object name (aka SHA-1).
For a non-ambiguous abbreviation of the object name append `:short`.
+ For an abbreviation of the object name with desired length append
+ `:short=<length>`, where the minimum length is MINIMUM_ABBREV. The
+ length may be exceeded to ensure unique object names.
upstream::
The name of a local ref which can be considered ``upstream''
- from the displayed ref. Respects `:short` in the same way as
- `refname` above. Additionally respects `:track` to show
- "[ahead N, behind M]" and `:trackshort` to show the terse
- version: ">" (ahead), "<" (behind), "<>" (ahead and behind),
- or "=" (in sync). Has no effect if the ref does not have
- tracking information associated with it.
+ from the displayed ref. Respects `:short`, `:lstrip` and
+ `:rstrip` in the same way as `refname` above. Additionally
+ respects `:track` to show "[ahead N, behind M]" and
+ `:trackshort` to show the terse version: ">" (ahead), "<"
+ (behind), "<>" (ahead and behind), or "=" (in sync). `:track`
+ also prints "[gone]" whenever unknown upstream ref is
+ encountered. Append `:track,nobracket` to show tracking
+ information without brackets (i.e "ahead N, behind M"). Has
+ no effect if the ref does not have tracking information
+ associated with it. All the options apart from `nobracket`
+ are mutually exclusive, but if used together the last option
+ is selected.
+
+push::
+ The name of a local ref which represents the `@{push}`
+ location for the displayed ref. Respects `:short`, `:lstrip`,
+ `:rstrip`, `:track`, and `:trackshort` options as `upstream`
+ does. Produces an empty string if no `@{push}` ref is
+ configured.
HEAD::
'*' if HEAD matches current ref (the checked out branch), ' '
@@ -105,10 +159,49 @@ color::
Change output color. Followed by `:<colorname>`, where names
are described in `color.branch.*`.
+align::
+ Left-, middle-, or right-align the content between
+ %(align:...) and %(end). The "align:" is followed by
+ `width=<width>` and `position=<position>` in any order
+ separated by a comma, where the `<position>` is either left,
+ right or middle, default being left and `<width>` is the total
+ length of the content with alignment. For brevity, the
+ "width=" and/or "position=" prefixes may be omitted, and bare
+ <width> and <position> used instead. For instance,
+ `%(align:<width>,<position>)`. If the contents length is more
+ than the width then no alignment is performed. If used with
+ `--quote` everything in between %(align:...) and %(end) is
+ quoted, but if nested then only the topmost level performs
+ quoting.
+
+if::
+ Used as %(if)...%(then)...%(end) or
+ %(if)...%(then)...%(else)...%(end). If there is an atom with
+ value or string literal after the %(if) then everything after
+ the %(then) is printed, else if the %(else) atom is used, then
+ everything after %(else) is printed. We ignore space when
+ evaluating the string before %(then), this is useful when we
+ use the %(HEAD) atom which prints either "*" or " " and we
+ want to apply the 'if' condition only on the 'HEAD' ref.
+ Append ":equals=<string>" or ":notequals=<string>" to compare
+ the value between the %(if:...) and %(then) atoms with the
+ given string.
+
+symref::
+ The ref which the given symbolic ref refers to. If not a
+ symbolic ref, nothing is printed. Respects the `:short`,
+ `:lstrip` and `:rstrip` options in the same way as `refname`
+ above.
+
In addition to the above, for commit and tag objects, the header
field names (`tree`, `parent`, `object`, `type`, and `tag`) can
be used to specify the value in the header field.
+For commit and tag objects, the special `creatordate` and `creator`
+fields will correspond to the appropriate date or name-email-date tuple
+from the `committer` or `tagger` fields depending on the object type.
+These are intended for working on a mix of annotated and lightweight tags.
+
Fields that have name-email-date tuple as its value (`author`,
`committer`, and `tagger`) can be suffixed with `name`, `email`,
and `date` to extract the named component.
@@ -117,20 +210,33 @@ The complete message in a commit and tag object is `contents`.
Its first line is `contents:subject`, where subject is the concatenation
of all lines of the commit message up to the first blank line. The next
line is 'contents:body', where body is all of the lines after the first
-blank line. Finally, the optional GPG signature is `contents:signature`.
+blank line. The optional GPG signature is `contents:signature`. The
+first `N` lines of the message is obtained using `contents:lines=N`.
+Additionally, the trailers as interpreted by linkgit:git-interpret-trailers[1]
+are obtained as 'contents:trailers'.
-For sorting purposes, fields with numeric values sort in numeric
-order (`objectsize`, `authordate`, `committerdate`, `taggerdate`).
+For sorting purposes, fields with numeric values sort in numeric order
+(`objectsize`, `authordate`, `committerdate`, `creatordate`, `taggerdate`).
All other fields are used to sort in their byte-value order.
+There is also an option to sort by versions, this can be done by using
+the fieldname `version:refname` or its alias `v:refname`.
+
In any case, a field name that refers to a field inapplicable to
the object referred by the ref does not cause an error. It
returns an empty string instead.
As a special case for the date-type fields, you may specify a format for
-the date by adding one of `:default`, `:relative`, `:short`, `:local`,
-`:iso8601`, `:rfc2822` or `:raw` to the end of the fieldname; e.g.
-`%(taggerdate:relative)`.
+the date by adding `:` followed by date format name (see the
+values the `--date` option to linkgit:git-rev-list[1] takes).
+
+Some atoms like %(align) and %(if) always require a matching %(end).
+We call them "opening atoms" and sometimes denote them as %($open).
+
+When a scripting language specific quoting is in effect, everything
+between a top-level opening atom and its matching %(end) is evaluated
+according to the semantics of the opening atom and only its result
+from the top-level is quoted.
EXAMPLES
@@ -219,6 +325,22 @@ eval=`git for-each-ref --shell --format="$fmt" \
eval "$eval"
------------
+
+An example to show the usage of %(if)...%(then)...%(else)...%(end).
+This prefixes the current branch with a star.
+
+------------
+git for-each-ref --format="%(if)%(HEAD)%(then)* %(else) %(end)%(refname:short)" refs/heads/
+------------
+
+
+An example to show the usage of %(if)...%(then)...%(end).
+This prints the authorname, if present.
+
+------------
+git for-each-ref --format="%(refname)%(if)%(authorname)%(then) Authored by: %(authorname)%(end)"
+------------
+
SEE ALSO
--------
linkgit:git-show-ref[1]