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Diffstat (limited to 'Documentation/git-for-each-ref.txt')
| -rw-r--r-- | Documentation/git-for-each-ref.txt | 268 |
1 files changed, 233 insertions, 35 deletions
diff --git a/Documentation/git-for-each-ref.txt b/Documentation/git-for-each-ref.txt index f2e08d11c1..2ae2478de7 100644 --- a/Documentation/git-for-each-ref.txt +++ b/Documentation/git-for-each-ref.txt @@ -10,6 +10,9 @@ SYNOPSIS [verse] 'git for-each-ref' [--count=<count>] [--shell|--perl|--python|--tcl] [(--sort=<key>)...] [--format=<format>] [<pattern>...] + [--points-at=<object>] + [--merged[=<object>]] [--no-merged[=<object>]] + [--contains[=<object>]] [--no-contains[=<object>]] DESCRIPTION ----------- @@ -23,35 +26,41 @@ host language allowing their direct evaluation in that language. OPTIONS ------- -<count>:: +<pattern>...:: + If one or more patterns are given, only refs are shown that + match against at least one pattern, either using fnmatch(3) or + literally, in the latter case matching completely or from the + beginning up to a slash. + +--count=<count>:: By default the command shows all refs that match `<pattern>`. This option makes it stop after showing that many refs. -<key>:: +--sort=<key>:: A field name to sort on. Prefix `-` to sort in descending order of the value. When unspecified, `refname` is used. You may use the --sort=<key> option multiple times, in which case the last key becomes the primary key. -<format>:: - A string that interpolates `%(fieldname)` from the - object pointed at by a ref being shown. If `fieldname` +--format=<format>:: + A string that interpolates `%(fieldname)` from a ref being shown + and the object it points at. If `fieldname` is prefixed with an asterisk (`*`) and the ref points - at a tag object, the value for the field in the object - tag refers is used. When unspecified, defaults to + at a tag object, use the value for the field in the object + which the tag object refers to (instead of the field in the tag object). + When unspecified, `<format>` defaults to `%(objectname) SPC %(objecttype) TAB %(refname)`. It also interpolates `%%` to `%`, and `%xx` where `xx` are hex digits interpolates to character with hex code `xx`; for example `%00` interpolates to `\0` (NUL), `%09` to `\t` (TAB) and `%0a` to `\n` (LF). -<pattern>...:: - If one or more patterns are given, only refs are shown that - match against at least one pattern, either using fnmatch(3) or - literally, in the latter case matching completely or from the - beginning up to a slash. +--color[=<when>]:: + Respect any colors specified in the `--format` option. The + `<when>` field must be one of `always`, `never`, or `auto` (if + `<when>` is absent, behave as if `always` was given). --shell:: --perl:: @@ -62,6 +71,27 @@ 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). + +--no-merged[=<object>]:: + Only list refs whose tips are not reachable from the + specified commit (HEAD if not specified). + +--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 ----------- @@ -76,49 +106,186 @@ 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 synonym to `lstrip`. objecttype:: The type of the object (`blob`, `tree`, `commit`, `tag`). objectsize:: The size of the object (the same as 'git cat-file -s' reports). - + Append `:disk` to get the size, in bytes, that the object takes up on + disk. See the note about on-disk sizes in the `CAVEATS` section below. 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. +deltabase:: + This expands to the object name of the delta base for the + given object, if it is stored as a delta. Otherwise it + expands to the null object name (all zeroes). 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. + 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"). ++ +For any remote-tracking branch `%(upstream)`, `%(upstream:remotename)` +and `%(upstream:remoteref)` refer to the name of the remote and the +name of the tracked remote ref, respectively. In other words, the +remote-tracking branch can be updated explicitly and individually by +using the refspec `%(upstream:remoteref):%(upstream)` to fetch from +`%(upstream:remotename)`. ++ +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`, `:trackshort`, `:remotename`, and `:remoteref` + options as `upstream` does. Produces an empty string if no `@{push}` + ref is configured. + +HEAD:: + '*' if HEAD matches current ref (the checked out branch), ' ' + otherwise. + +color:: + Change output color. Followed by `:<colorname>`, where color + names are described under Values in the "CONFIGURATION FILE" + section of linkgit:git-config[1]. For example, + `%(color:bold red)`. + +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. + +worktreepath:: + The absolute path to the worktree in which the ref is checked + out, if it is checked out in any linked worktree. Empty string + otherwise. 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. +Fields `tree` and `parent` can also be used with modifier `:short` and +`:short=<length>` just like `objectname`. + +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. - -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`. - -For sorting purposes, fields with numeric values sort in numeric -order (`objectsize`, `authordate`, `committerdate`, `taggerdate`). +and `date` to extract the named component. For email fields (`authoremail`, +`committeremail` and `taggeremail`), `:trim` can be appended to get the email +without angle brackets, and `:localpart` to get the part before the `@` symbol +out of the trimmed email. + +The message in a commit or a tag object is `contents`, from which +`contents:<part>` can be used to extract various parts out of: + +contents:size:: + The size in bytes of the commit or tag message. + +contents:subject:: + The first paragraph of the message, which typically is a + single line, is taken as the "subject" of the commit or the + tag message. + Instead of `contents:subject`, field `subject` can also be used to + obtain same results. `:sanitize` can be appended to `subject` for + subject line suitable for filename. + +contents:body:: + The remainder of the commit or the tag message that follows + the "subject". + +contents:signature:: + The optional GPG signature of the tag. + +contents:lines=N:: + The first `N` lines of the message. + +Additionally, the trailers as interpreted by linkgit:git-interpret-trailers[1] +are obtained as `trailers[:options]` (or by using the historical alias +`contents:trailers[:options]`). For valid [:option] values see `trailers` +section of linkgit:git-log[1]. + +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 @@ -207,13 +374,44 @@ eval=`git for-each-ref --shell --format="$fmt" \ eval "$eval" ------------ -Author ------- -Written by Junio C Hamano <gitster@pobox.com>. -Documentation -------------- -Documentation by Junio C Hamano and the git-list <git@vger.kernel.org>. +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)" +------------ + +CAVEATS +------- + +Note that the sizes of objects on disk are reported accurately, but care +should be taken in drawing conclusions about which refs or objects are +responsible for disk usage. The size of a packed non-delta object may be +much larger than the size of objects which delta against it, but the +choice of which object is the base and which is the delta is arbitrary +and is subject to change during a repack. + +Note also that multiple copies of an object may be present in the object +database; in this case, it is undefined which copy's size or delta base +will be reported. + +NOTES +----- + +include::ref-reachability-filters.txt[] + +SEE ALSO +-------- +linkgit:git-show-ref[1] GIT --- |