508 lines
17 KiB
Plaintext
508 lines
17 KiB
Plaintext
git-for-each-ref(1)
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===================
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NAME
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----
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git-for-each-ref - Output information on each ref
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SYNOPSIS
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--------
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[verse]
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'git for-each-ref' [--count=<count>] [--shell|--perl|--python|--tcl]
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[(--sort=<key>)...] [--format=<format>]
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[--include-root-refs] [ --stdin | <pattern>... ]
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[--points-at=<object>]
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[--merged[=<object>]] [--no-merged[=<object>]]
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[--contains[=<object>]] [--no-contains[=<object>]]
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[--exclude=<pattern> ...]
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DESCRIPTION
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-----------
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Iterate over all refs that match `<pattern>` and show them
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according to the given `<format>`, after sorting them according
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to the given set of `<key>`. If `<count>` is given, stop after
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showing that many refs. The interpolated values in `<format>`
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can optionally be quoted as string literals in the specified
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host language allowing their direct evaluation in that language.
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OPTIONS
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-------
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<pattern>...::
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If one or more patterns are given, only refs are shown that
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match against at least one pattern, either using fnmatch(3) or
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literally, in the latter case matching completely or from the
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beginning up to a slash.
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--stdin::
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If `--stdin` is supplied, then the list of patterns is read from
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standard input instead of from the argument list.
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--count=<count>::
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By default the command shows all refs that match
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`<pattern>`. This option makes it stop after showing
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that many refs.
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--sort=<key>::
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A field name to sort on. Prefix `-` to sort in
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descending order of the value. When unspecified,
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`refname` is used. You may use the --sort=<key> option
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multiple times, in which case the last key becomes the primary
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key.
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--format=<format>::
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A string that interpolates `%(fieldname)` from a ref being shown and
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the object it points at. In addition, the string literal `%%`
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renders as `%` and `%xx` - where `xx` are hex digits - renders as
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the character with hex code `xx`. For example, `%00` interpolates to
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`\0` (NUL), `%09` to `\t` (TAB), and `%0a` to `\n` (LF).
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+
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When unspecified, `<format>` defaults to `%(objectname) SPC %(objecttype)
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TAB %(refname)`.
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--color[=<when>]::
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Respect any colors specified in the `--format` option. The
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`<when>` field must be one of `always`, `never`, or `auto` (if
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`<when>` is absent, behave as if `always` was given).
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--shell::
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--perl::
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--python::
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--tcl::
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If given, strings that substitute `%(fieldname)`
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placeholders are quoted as string literals suitable for
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the specified host language. This is meant to produce
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a scriptlet that can directly be `eval`ed.
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--points-at=<object>::
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Only list refs which points at the given object.
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--merged[=<object>]::
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Only list refs whose tips are reachable from the
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specified commit (HEAD if not specified).
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--no-merged[=<object>]::
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Only list refs whose tips are not reachable from the
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specified commit (HEAD if not specified).
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--contains[=<object>]::
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Only list refs which contain the specified commit (HEAD if not
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specified).
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--no-contains[=<object>]::
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Only list refs which don't contain the specified commit (HEAD
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if not specified).
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--ignore-case::
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Sorting and filtering refs are case insensitive.
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--omit-empty::
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Do not print a newline after formatted refs where the format expands
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to the empty string.
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--exclude=<pattern>::
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If one or more patterns are given, only refs which do not match
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any excluded pattern(s) are shown. Matching is done using the
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same rules as `<pattern>` above.
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--include-root-refs::
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List root refs (HEAD and pseudorefs) apart from regular refs.
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FIELD NAMES
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-----------
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Various values from structured fields in referenced objects can
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be used to interpolate into the resulting output, or as sort
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keys.
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For all objects, the following names can be used:
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refname::
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The name of the ref (the part after $GIT_DIR/).
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For a non-ambiguous short name of the ref append `:short`.
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The option core.warnAmbiguousRefs is used to select the strict
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abbreviation mode. If `lstrip=<N>` (`rstrip=<N>`) is appended, strips `<N>`
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slash-separated path components from the front (back) of the refname
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(e.g. `%(refname:lstrip=2)` turns `refs/tags/foo` into `foo` and
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`%(refname:rstrip=2)` turns `refs/tags/foo` into `refs`).
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If `<N>` is a negative number, strip as many path components as
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necessary from the specified end to leave `-<N>` path components
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(e.g. `%(refname:lstrip=-2)` turns
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`refs/tags/foo` into `tags/foo` and `%(refname:rstrip=-1)`
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turns `refs/tags/foo` into `refs`). When the ref does not have
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enough components, the result becomes an empty string if
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stripping with positive <N>, or it becomes the full refname if
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stripping with negative <N>. Neither is an error.
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+
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`strip` can be used as a synonym to `lstrip`.
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objecttype::
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The type of the object (`blob`, `tree`, `commit`, `tag`).
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objectsize::
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The size of the object (the same as 'git cat-file -s' reports).
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Append `:disk` to get the size, in bytes, that the object takes up on
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disk. See the note about on-disk sizes in the `CAVEATS` section below.
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objectname::
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The object name (aka SHA-1).
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For a non-ambiguous abbreviation of the object name append `:short`.
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For an abbreviation of the object name with desired length append
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`:short=<length>`, where the minimum length is MINIMUM_ABBREV. The
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length may be exceeded to ensure unique object names.
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deltabase::
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This expands to the object name of the delta base for the
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given object, if it is stored as a delta. Otherwise it
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expands to the null object name (all zeroes).
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upstream::
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The name of a local ref which can be considered ``upstream''
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from the displayed ref. Respects `:short`, `:lstrip` and
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`:rstrip` in the same way as `refname` above. Additionally
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respects `:track` to show "[ahead N, behind M]" and
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`:trackshort` to show the terse version: ">" (ahead), "<"
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(behind), "<>" (ahead and behind), or "=" (in sync). `:track`
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also prints "[gone]" whenever unknown upstream ref is
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encountered. Append `:track,nobracket` to show tracking
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information without brackets (i.e "ahead N, behind M").
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+
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For any remote-tracking branch `%(upstream)`, `%(upstream:remotename)`
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and `%(upstream:remoteref)` refer to the name of the remote and the
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name of the tracked remote ref, respectively. In other words, the
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remote-tracking branch can be updated explicitly and individually by
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using the refspec `%(upstream:remoteref):%(upstream)` to fetch from
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`%(upstream:remotename)`.
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+
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Has no effect if the ref does not have tracking information associated
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with it. All the options apart from `nobracket` are mutually exclusive,
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but if used together the last option is selected.
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push::
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The name of a local ref which represents the `@{push}`
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location for the displayed ref. Respects `:short`, `:lstrip`,
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`:rstrip`, `:track`, `:trackshort`, `:remotename`, and `:remoteref`
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options as `upstream` does. Produces an empty string if no `@{push}`
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ref is configured.
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HEAD::
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'*' if HEAD matches current ref (the checked out branch), ' '
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otherwise.
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color::
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Change output color. Followed by `:<colorname>`, where color
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names are described under Values in the "CONFIGURATION FILE"
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section of linkgit:git-config[1]. For example,
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`%(color:bold red)`.
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align::
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Left-, middle-, or right-align the content between
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%(align:...) and %(end). The "align:" is followed by
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`width=<width>` and `position=<position>` in any order
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separated by a comma, where the `<position>` is either left,
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right or middle, default being left and `<width>` is the total
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length of the content with alignment. For brevity, the
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"width=" and/or "position=" prefixes may be omitted, and bare
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<width> and <position> used instead. For instance,
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`%(align:<width>,<position>)`. If the contents length is more
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than the width then no alignment is performed. If used with
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`--quote` everything in between %(align:...) and %(end) is
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quoted, but if nested then only the topmost level performs
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quoting.
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if::
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Used as %(if)...%(then)...%(end) or
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%(if)...%(then)...%(else)...%(end). If there is an atom with
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value or string literal after the %(if) then everything after
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the %(then) is printed, else if the %(else) atom is used, then
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everything after %(else) is printed. We ignore space when
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evaluating the string before %(then), this is useful when we
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use the %(HEAD) atom which prints either "*" or " " and we
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want to apply the 'if' condition only on the 'HEAD' ref.
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Append ":equals=<string>" or ":notequals=<string>" to compare
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the value between the %(if:...) and %(then) atoms with the
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given string.
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symref::
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The ref which the given symbolic ref refers to. If not a
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symbolic ref, nothing is printed. Respects the `:short`,
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`:lstrip` and `:rstrip` options in the same way as `refname`
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above.
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signature::
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The GPG signature of a commit.
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signature:grade::
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Show "G" for a good (valid) signature, "B" for a bad
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signature, "U" for a good signature with unknown validity, "X"
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for a good signature that has expired, "Y" for a good
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signature made by an expired key, "R" for a good signature
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made by a revoked key, "E" if the signature cannot be
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checked (e.g. missing key) and "N" for no signature.
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signature:signer::
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The signer of the GPG signature of a commit.
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signature:key::
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The key of the GPG signature of a commit.
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signature:fingerprint::
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The fingerprint of the GPG signature of a commit.
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signature:primarykeyfingerprint::
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The primary key fingerprint of the GPG signature of a commit.
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signature:trustlevel::
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The trust level of the GPG signature of a commit. Possible
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outputs are `ultimate`, `fully`, `marginal`, `never` and `undefined`.
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worktreepath::
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The absolute path to the worktree in which the ref is checked
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out, if it is checked out in any linked worktree. Empty string
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otherwise.
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ahead-behind:<committish>::
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Two integers, separated by a space, demonstrating the number of
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commits ahead and behind, respectively, when comparing the output
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ref to the `<committish>` specified in the format.
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describe[:options]::
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A human-readable name, like linkgit:git-describe[1];
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empty string for undescribable commits. The `describe` string may
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be followed by a colon and one or more comma-separated options.
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+
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--
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tags=<bool-value>;;
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Instead of only considering annotated tags, consider
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lightweight tags as well; see the corresponding option in
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linkgit:git-describe[1] for details.
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abbrev=<number>;;
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Use at least <number> hexadecimal digits; see the corresponding
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option in linkgit:git-describe[1] for details.
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match=<pattern>;;
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Only consider tags matching the given `glob(7)` pattern,
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excluding the "refs/tags/" prefix; see the corresponding option
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in linkgit:git-describe[1] for details.
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exclude=<pattern>;;
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Do not consider tags matching the given `glob(7)` pattern,
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excluding the "refs/tags/" prefix; see the corresponding option
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in linkgit:git-describe[1] for details.
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--
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In addition to the above, for commit and tag objects, the header
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field names (`tree`, `parent`, `object`, `type`, and `tag`) can
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be used to specify the value in the header field.
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Fields `tree` and `parent` can also be used with modifier `:short` and
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`:short=<length>` just like `objectname`.
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For commit and tag objects, the special `creatordate` and `creator`
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fields will correspond to the appropriate date or name-email-date tuple
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from the `committer` or `tagger` fields depending on the object type.
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These are intended for working on a mix of annotated and lightweight tags.
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For tag objects, a `fieldname` prefixed with an asterisk (`*`) expands to
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the `fieldname` value of the peeled object, rather than that of the tag
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object itself.
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Fields that have name-email-date tuple as its value (`author`,
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`committer`, and `tagger`) can be suffixed with `name`, `email`,
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and `date` to extract the named component. For email fields (`authoremail`,
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`committeremail` and `taggeremail`), `:trim` can be appended to get the email
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without angle brackets, and `:localpart` to get the part before the `@` symbol
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out of the trimmed email. In addition to these, the `:mailmap` option and the
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corresponding `:mailmap,trim` and `:mailmap,localpart` can be used (order does
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not matter) to get values of the name and email according to the .mailmap file
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or according to the file set in the mailmap.file or mailmap.blob configuration
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variable (see linkgit:gitmailmap[5]).
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The raw data in an object is `raw`.
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raw:size::
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The raw data size of the object.
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Note that `--format=%(raw)` can not be used with `--python`, `--shell`, `--tcl`,
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because such language may not support arbitrary binary data in their string
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variable type.
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The message in a commit or a tag object is `contents`, from which
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`contents:<part>` can be used to extract various parts out of:
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contents:size::
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The size in bytes of the commit or tag message.
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contents:subject::
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The first paragraph of the message, which typically is a
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single line, is taken as the "subject" of the commit or the
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tag message.
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Instead of `contents:subject`, field `subject` can also be used to
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obtain same results. `:sanitize` can be appended to `subject` for
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subject line suitable for filename.
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contents:body::
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The remainder of the commit or the tag message that follows
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the "subject".
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contents:signature::
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The optional GPG signature of the tag.
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contents:lines=N::
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The first `N` lines of the message.
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Additionally, the trailers as interpreted by linkgit:git-interpret-trailers[1]
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are obtained as `trailers[:options]` (or by using the historical alias
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`contents:trailers[:options]`). For valid [:option] values see `trailers`
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section of linkgit:git-log[1].
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For sorting purposes, fields with numeric values sort in numeric order
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(`objectsize`, `authordate`, `committerdate`, `creatordate`, `taggerdate`).
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All other fields are used to sort in their byte-value order.
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There is also an option to sort by versions, this can be done by using
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the fieldname `version:refname` or its alias `v:refname`.
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In any case, a field name that refers to a field inapplicable to
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the object referred by the ref does not cause an error. It
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returns an empty string instead.
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As a special case for the date-type fields, you may specify a format for the
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date by adding `:` followed by date format name (see the values the `--date`
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option to linkgit:git-rev-list[1] takes). If this formatting is provided in
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a `--sort` key, references will be sorted according to the byte-value of the
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formatted string rather than the numeric value of the underlying timestamp.
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Some atoms like %(align) and %(if) always require a matching %(end).
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We call them "opening atoms" and sometimes denote them as %($open).
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When a scripting language specific quoting is in effect, everything
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between a top-level opening atom and its matching %(end) is evaluated
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according to the semantics of the opening atom and only its result
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from the top-level is quoted.
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EXAMPLES
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--------
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An example directly producing formatted text. Show the most recent
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3 tagged commits:
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------------
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#!/bin/sh
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git for-each-ref --count=3 --sort='-*authordate' \
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--format='From: %(*authorname) %(*authoremail)
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Subject: %(*subject)
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Date: %(*authordate)
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Ref: %(*refname)
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%(*body)
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' 'refs/tags'
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------------
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A simple example showing the use of shell eval on the output,
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demonstrating the use of --shell. List the prefixes of all heads:
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------------
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#!/bin/sh
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git for-each-ref --shell --format="ref=%(refname)" refs/heads | \
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while read entry
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do
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eval "$entry"
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echo `dirname $ref`
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done
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------------
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A bit more elaborate report on tags, demonstrating that the format
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may be an entire script:
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------------
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#!/bin/sh
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fmt='
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r=%(refname)
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t=%(*objecttype)
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T=${r#refs/tags/}
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o=%(*objectname)
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n=%(*authorname)
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e=%(*authoremail)
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s=%(*subject)
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d=%(*authordate)
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b=%(*body)
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kind=Tag
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if test "z$t" = z
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then
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# could be a lightweight tag
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t=%(objecttype)
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kind="Lightweight tag"
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o=%(objectname)
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n=%(authorname)
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e=%(authoremail)
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s=%(subject)
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d=%(authordate)
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b=%(body)
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fi
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echo "$kind $T points at a $t object $o"
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if test "z$t" = zcommit
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then
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echo "The commit was authored by $n $e
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at $d, and titled
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$s
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Its message reads as:
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"
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echo "$b" | sed -e "s/^/ /"
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echo
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fi
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'
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eval=`git for-each-ref --shell --format="$fmt" \
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--sort='*objecttype' \
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--sort=-taggerdate \
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refs/tags`
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eval "$eval"
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------------
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An example to show the usage of %(if)...%(then)...%(else)...%(end).
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This prefixes the current branch with a star.
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------------
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git for-each-ref --format="%(if)%(HEAD)%(then)* %(else) %(end)%(refname:short)" refs/heads/
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------------
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An example to show the usage of %(if)...%(then)...%(end).
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This prints the authorname, if present.
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------------
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git for-each-ref --format="%(refname)%(if)%(authorname)%(then) Authored by: %(authorname)%(end)"
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------------
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CAVEATS
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-------
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Note that the sizes of objects on disk are reported accurately, but care
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should be taken in drawing conclusions about which refs or objects are
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responsible for disk usage. The size of a packed non-delta object may be
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much larger than the size of objects which delta against it, but the
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choice of which object is the base and which is the delta is arbitrary
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and is subject to change during a repack.
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Note also that multiple copies of an object may be present in the object
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|
database; in this case, it is undefined which copy's size or delta base
|
|
will be reported.
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|
|
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NOTES
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|
-----
|
|
|
|
include::ref-reachability-filters.txt[]
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|
|
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SEE ALSO
|
|
--------
|
|
linkgit:git-show-ref[1]
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|
|
|
GIT
|
|
---
|
|
Part of the linkgit:git[1] suite
|