'\" t
.\"     Title: git-footers
.\"    Author: [FIXME: author] [see http://www.docbook.org/tdg5/en/html/author]
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\"      Date: 02/20/2025
.\"    Manual: Chromium depot_tools Manual
.\"    Source: depot_tools 8a5ec2b9
.\"  Language: English
.\"
.TH "GIT\-FOOTERS" "1" "02/20/2025" "depot_tools 8a5ec2b9" "Chromium depot_tools Manual"
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.SH "NAME"
git-footers \- Extract meta\-information expressed as footers in a commit message\&.
.SH "SYNOPSIS"
.sp
.nf
\fIgit footers\fR [\-\-key FOOTER] REF
\fIgit footers\fR [\-\-position | \-\-position\-ref | \-\-position\-num] REF
.fi
.sp
.SH "DESCRIPTION"
.sp
\fBgit footers\fR extracts information included in commit messages as "footers", which are roughly like HTTP headers except they are at the end\&. For example, a commit might look like:
.sp
.if n \{\
.RS 4
.\}
.nf
This is a fancy commit message\&.
.fi
.if n \{\
.RE
.\}
.sp
.if n \{\
.RS 4
.\}
.nf
Cr\-Commit\-Position: refs/heads/main@{#292272}
Tech\-Debt\-Introduced: 17 nanoMSOffices
.fi
.if n \{\
.RE
.\}
.sp
\fBgit footers\fR knows how to extract this information\&.
.sp
Footers are order\-independent and can appear more than once\&. Thus they are treated as a multimap\&.
.SH "OPTIONS"
.sp
If no options are given, all footers are printed, with their names case\-normalized\&.
.PP
\-\-key FOOTER
.RS 4
Extract all the headers associated with the given key, and print one per line\&. If there are no footers with this key, produces no output and exits successfully\&.
.RE
.PP
\-\-position
.RS 4
Extract the Chrome commit position from the footers\&. This first attempts to get the value of the
\fBCr\-Commit\-Position\fR
footer\&. If that doesn\(cqt exist then it tries a heuristic based on
\fBGit\-Svn\-Id\fR\&. Output is in one of the following forms:
.sp
.if n \{\
.RS 4
.\}
.nf
refs/heads/main@{#292272}
refs/branch\-heads/branchname
.fi
.if n \{\
.RE
.\}
.RE
.PP
\-\-position\-num
.RS 4
Extracts and prints the Chrome commit position number only (292272 in the example above)\&. Exits with an error if one cannot be found\&.
.RE
.PP
\-\-position\-ref
.RS 4
Extracts and prints the Chrome commit position ref name only (\fBref/heads/main\fR
or
\fBrefs/branch\-heads/branchname\fR
in the example above)\&.
.RE
.SH "EXAMPLE"
.sp

.sp
.if n \{\
.RS 4
.\}
.nf
\fB$ git footers HEAD\fR
Tech\-Debt\-Introduced: \-4 microMSOffices
Tech\-Debt\-Introduced: 17 microMSOffices
Cr\-Commit\-Position: refs/heads/main@{#292272}

\fB$ git footers \-\-key Tech\-Debt\-Introduced HEAD\fR
\-4 microMSOffices
17 microMSOffices

\fB$ git footers \-\-position HEAD\fR
refs/heads/main@{#292272}

\fB$ git footers \-\-position\-num HEAD\fR
292272

\fB$ git footers \-\-position\-ref HEAD\fR
refs/heads/main
.fi
.if n \{\
.RE
.\}
.sp
.SH "SEE ALSO"
.sp
\fBgit-number\fR(1)
.SH "CHROMIUM DEPOT_TOOLS"
.sp
Part of the chromium \fBdepot_tools\fR(7) suite\&. These tools are meant to assist with the development of chromium and related projects\&. Download the tools by checking out the \m[blue]\fBgit repository\fR\m[]\&\s-2\u[1]\d\s+2\&.
.SH "NOTES"
.IP " 1." 4
git repository
.RS 4
\%https://chromium.googlesource.com/chromium/tools/depot_tools.git
.RE