e49d5782fc6f82289d0b71c720110b11e38cb8b0
   1git-for-each-ref(1)
   2===================
   3
   4NAME
   5----
   6git-for-each-ref - Output information on each ref
   7
   8SYNOPSIS
   9--------
  10[verse]
  11'git for-each-ref' [--count=<count>] [--shell|--perl|--python|--tcl]
  12                   [(--sort=<key>)...] [--format=<format>] [<pattern>...]
  13                   [--points-at <object>] [(--merged | --no-merged) [<object>]]
  14                   [--contains [<object>]]
  15
  16DESCRIPTION
  17-----------
  18
  19Iterate over all refs that match `<pattern>` and show them
  20according to the given `<format>`, after sorting them according
  21to the given set of `<key>`.  If `<count>` is given, stop after
  22showing that many refs.  The interpolated values in `<format>`
  23can optionally be quoted as string literals in the specified
  24host language allowing their direct evaluation in that language.
  25
  26OPTIONS
  27-------
  28<count>::
  29        By default the command shows all refs that match
  30        `<pattern>`.  This option makes it stop after showing
  31        that many refs.
  32
  33<key>::
  34        A field name to sort on.  Prefix `-` to sort in
  35        descending order of the value.  When unspecified,
  36        `refname` is used.  You may use the --sort=<key> option
  37        multiple times, in which case the last key becomes the primary
  38        key.
  39
  40<format>::
  41        A string that interpolates `%(fieldname)` from the
  42        object pointed at by a ref being shown.  If `fieldname`
  43        is prefixed with an asterisk (`*`) and the ref points
  44        at a tag object, the value for the field in the object
  45        tag refers is used.  When unspecified, defaults to
  46        `%(objectname) SPC %(objecttype) TAB %(refname)`.
  47        It also interpolates `%%` to `%`, and `%xx` where `xx`
  48        are hex digits interpolates to character with hex code
  49        `xx`; for example `%00` interpolates to `\0` (NUL),
  50        `%09` to `\t` (TAB) and `%0a` to `\n` (LF).
  51
  52<pattern>...::
  53        If one or more patterns are given, only refs are shown that
  54        match against at least one pattern, either using fnmatch(3) or
  55        literally, in the latter case matching completely or from the
  56        beginning up to a slash.
  57
  58--shell::
  59--perl::
  60--python::
  61--tcl::
  62        If given, strings that substitute `%(fieldname)`
  63        placeholders are quoted as string literals suitable for
  64        the specified host language.  This is meant to produce
  65        a scriptlet that can directly be `eval`ed.
  66
  67--points-at <object>::
  68        Only list refs which points at the given object.
  69
  70--merged [<object>]::
  71        Only list refs whose tips are reachable from the
  72        specified commit (HEAD if not specified).
  73
  74--no-merged [<object>]::
  75        Only list refs whose tips are not reachable from the
  76        specified commit (HEAD if not specified).
  77
  78--contains [<object>]::
  79        Only list tags which contain the specified commit (HEAD if not
  80        specified).
  81
  82FIELD NAMES
  83-----------
  84
  85Various values from structured fields in referenced objects can
  86be used to interpolate into the resulting output, or as sort
  87keys.
  88
  89For all objects, the following names can be used:
  90
  91refname::
  92        The name of the ref (the part after $GIT_DIR/).
  93        For a non-ambiguous short name of the ref append `:short`.
  94        The option core.warnAmbiguousRefs is used to select the strict
  95        abbreviation mode.
  96
  97objecttype::
  98        The type of the object (`blob`, `tree`, `commit`, `tag`).
  99
 100objectsize::
 101        The size of the object (the same as 'git cat-file -s' reports).
 102
 103objectname::
 104        The object name (aka SHA-1).
 105        For a non-ambiguous abbreviation of the object name append `:short`.
 106
 107upstream::
 108        The name of a local ref which can be considered ``upstream''
 109        from the displayed ref. Respects `:short` in the same way as
 110        `refname` above.  Additionally respects `:track` to show
 111        "[ahead N, behind M]" and `:trackshort` to show the terse
 112        version: ">" (ahead), "<" (behind), "<>" (ahead and behind),
 113        or "=" (in sync).  Has no effect if the ref does not have
 114        tracking information associated with it.
 115
 116push::
 117        The name of a local ref which represents the `@{push}` location
 118        for the displayed ref. Respects `:short`, `:track`, and
 119        `:trackshort` options as `upstream` does. Produces an empty
 120        string if no `@{push}` ref is configured.
 121
 122HEAD::
 123        '*' if HEAD matches current ref (the checked out branch), ' '
 124        otherwise.
 125
 126color::
 127        Change output color.  Followed by `:<colorname>`, where names
 128        are described in `color.branch.*`.
 129
 130In addition to the above, for commit and tag objects, the header
 131field names (`tree`, `parent`, `object`, `type`, and `tag`) can
 132be used to specify the value in the header field.
 133
 134Fields that have name-email-date tuple as its value (`author`,
 135`committer`, and `tagger`) can be suffixed with `name`, `email`,
 136and `date` to extract the named component.
 137
 138The complete message in a commit and tag object is `contents`.
 139Its first line is `contents:subject`, where subject is the concatenation
 140of all lines of the commit message up to the first blank line.  The next
 141line is 'contents:body', where body is all of the lines after the first
 142blank line.  Finally, the optional GPG signature is `contents:signature`.
 143
 144For sorting purposes, fields with numeric values sort in numeric
 145order (`objectsize`, `authordate`, `committerdate`, `taggerdate`).
 146All other fields are used to sort in their byte-value order.
 147
 148In any case, a field name that refers to a field inapplicable to
 149the object referred by the ref does not cause an error.  It
 150returns an empty string instead.
 151
 152As a special case for the date-type fields, you may specify a format for
 153the date by adding one of `:default`, `:relative`, `:short`, `:local`,
 154`:iso8601`, `:rfc2822` or `:raw` to the end of the fieldname; e.g.
 155`%(taggerdate:relative)`.
 156
 157
 158EXAMPLES
 159--------
 160
 161An example directly producing formatted text.  Show the most recent
 1623 tagged commits:
 163
 164------------
 165#!/bin/sh
 166
 167git for-each-ref --count=3 --sort='-*authordate' \
 168--format='From: %(*authorname) %(*authoremail)
 169Subject: %(*subject)
 170Date: %(*authordate)
 171Ref: %(*refname)
 172
 173%(*body)
 174' 'refs/tags'
 175------------
 176
 177
 178A simple example showing the use of shell eval on the output,
 179demonstrating the use of --shell.  List the prefixes of all heads:
 180------------
 181#!/bin/sh
 182
 183git for-each-ref --shell --format="ref=%(refname)" refs/heads | \
 184while read entry
 185do
 186        eval "$entry"
 187        echo `dirname $ref`
 188done
 189------------
 190
 191
 192A bit more elaborate report on tags, demonstrating that the format
 193may be an entire script:
 194------------
 195#!/bin/sh
 196
 197fmt='
 198        r=%(refname)
 199        t=%(*objecttype)
 200        T=${r#refs/tags/}
 201
 202        o=%(*objectname)
 203        n=%(*authorname)
 204        e=%(*authoremail)
 205        s=%(*subject)
 206        d=%(*authordate)
 207        b=%(*body)
 208
 209        kind=Tag
 210        if test "z$t" = z
 211        then
 212                # could be a lightweight tag
 213                t=%(objecttype)
 214                kind="Lightweight tag"
 215                o=%(objectname)
 216                n=%(authorname)
 217                e=%(authoremail)
 218                s=%(subject)
 219                d=%(authordate)
 220                b=%(body)
 221        fi
 222        echo "$kind $T points at a $t object $o"
 223        if test "z$t" = zcommit
 224        then
 225                echo "The commit was authored by $n $e
 226at $d, and titled
 227
 228    $s
 229
 230Its message reads as:
 231"
 232                echo "$b" | sed -e "s/^/    /"
 233                echo
 234        fi
 235'
 236
 237eval=`git for-each-ref --shell --format="$fmt" \
 238        --sort='*objecttype' \
 239        --sort=-taggerdate \
 240        refs/tags`
 241eval "$eval"
 242------------
 243
 244SEE ALSO
 245--------
 246linkgit:git-show-ref[1]
 247
 248GIT
 249---
 250Part of the linkgit:git[1] suite