-The
-.B dgit-repos
-repository for each package contains one ref per suite named
-\fBrefs/dgit/\fR\fIsuite\fR. These should be pushed to only by
-dgit. They are fast forwarding. Each push on this branch
-corresponds to an upload (or attempted upload).
-
-However, it is perfectly fine to have other branches in dgit-repos;
-normally the dgit-repos repo for the package will be accessible via
-the remote name `origin'.
-
-dgit push can operate on any commit which is a descendant of the
-current dgit/suite tip in dgit-repos.
-
-Uploads made by dgit contain an additional field
-.B Vcs-Dgit-Master
-in the source package .dsc. (This is added by dgit push.)
-This specifies a commit (an ancestor of the dgit/suite
-branch) whose tree is identical to the unpacked source upload.
-
-Uploads not made by dgit are represented in git by commits which are
-synthesised by dgit. The tree of each such commit corresponds to the
-unpacked source; there is an origin commit with the contents, and a
-psuedo-merge from last known upload - that is, from the contents of
-the dgit/suite branch.
-
-dgit expects repos that it works with to have a
-.B dgit
-remote. This refers to the well-known dgit-repos location
-(currently, the dgit-repos project on Alioth). dgit fetch updates
-the remote tracking branch for dgit/suite.
-
-dgit does not (currently) represent the orig tarball(s) in git; nor
-does it represent the patch statck of a `3.0 (quilt)' package. The
-orig tarballs are downloaded and kept in the parent directory, as with
-a traditional (non-gitish) dpkg-source workflow.
-
-To a user looking at the archive, changes pushed using dgit look like
-changes made in an NMU: in a `3.0 (quilt)' package the delta from the
-previous upload is recorded in a new patch constructed by dpkg-source.
-.SH PACKAGE SOURCE FORMATS
-If you are not the maintainer, you do not need to worry about the
-source format of the package. You can just make changes as you like
-in git. If the package is a `3.0 (quilt)' package, the patch stack
-will usually not be represented in the git history.
-
-If you are the maintainer of a non-native package, you currently have
-two sensible options:
-
-Firstly, you can regard your git history as primary, and the archive
-as an export format. For example, you could maintain topic branches
-in git and a fast-forwarding release branch; or you could do your work
-directly in a merging way on the
-.BI dgit/ suite
-branches. If you do this you should probably use a `1.0' format
-source package. In the archive, the delta between upstream will be
-represented in the single Debian patch.
+If the branch does not exist,
+dgit checkout creates it,
+and sets it up the same way as dgit clone would.
+In that case, if
+the archive remote tracking branch does not exist,
+dgit checkout will do a dgit fetch first.
+
+NB: dgit checkout will only do a fetch if it has to.
+If you already have the suite branch,
+and want to merge your branch with updates from the archive,
+use dgit pull.
+
+dgit checkout will normally need to aceess the archive server,
+to canonicalise the provided suite name.
+The exception is if you specify the canonical name,
+and the branch (or tracking branch) already exists.
+.TP
+\fBdgit build\fR ...
+Runs
+.B dpkg-buildpackage
+with some suitable options. Options and arguments after build
+will be passed on to dpkg-buildpackage. It is not necessary to use
+dgit build when using dgit; it is OK to use any approach which ensures
+that the generated source package corresponds to the relevant git
+commit.
+
+Tagging, signing and actually uploading should be left to dgit push.
+
+dgit's build operations access the the network,
+to get the -v option right.
+See -v, below.
+.TP
+\fBdgit build-source\fR ...
+Builds the source package, and a changes file for a prospective
+source-only upload, using
+.BR dpkg-source .
+The output is left in
+.IR package \fB_\fR version \fB.dsc\fR
+and
+.IR package \fB_\fR version \fB_source.changes\fR.
+
+Tagging, signing and actually uploading should be left to dgit
+push-source, or dgit push.
+.TP
+.B dgit clean
+Cleans the current working tree (according to the --clean= option in
+force).
+.TP
+\fBdgit update-vcs-git\fR [\fIsuite\fP|\fB.\fR] [\fB--\fR] [\fIgit fetch options\fR]
+.TQ
+\fBdgit update-vcs-git\fR [\fIsuite|\fP\fB.\fR] \fB-\fR
+Sets up, or updates the url of, the vcs-git remote, and
+(unless \fB-\fR was specified)
+runs git fetch on it.
+
+By default, the Vcs-Git field of the .dsc from Debian sid is used,
+as that is probably most up to date.
+Another suite may be specified, or
+.B .
+to indicate that the Vcs-Git of the cwd's debian/control should
+be used instead.
+.TP
+.B dgit help
+Print a usage summary.
+.TP
+\fBdgit sbuild\fR ...
+Constructs the source package, uses
+.B sbuild
+to do a binary build, and uses mergechanges to merge the source and
+binary changes files. Options and arguments after sbuild will be
+passed on to sbuild.
+The output is left in
+.IR package \fB_\fR version \fB_multi.changes\fR.
+.IP
+Note that by default
+sbuild does not build arch-independent packages.
+You probably want to pass -A, to request those.
+.IP
+Tagging, signing and actually uploading should be left to dgit push.
+.TP
+\fBdgit pbuilder\fR [\fIdebbuildopts\fP]
+Constructs the source package, uses
+.B pbuilder
+to do a binary build, and uses mergechanges to merge the source and
+binary changes files.
+The output is left in
+.IR package \fB_\fR version \fB_multi.changes\fR.
+
+You should ensure that your dgit --build-products-dir setting matches
+your pbuilder --buildresult.
+
+The \fIdebbuildopts\fP are passed to pbuilder using its --debbuildopts
+option. If you want to pass other options to pbuilder, use the
+\fB--pbuilder:\fR dgit option as described below
+(remember that dgit options should appear between \fBdgit\fR and
+\fBpbuilder\fR).
+
+You should ensure that in your pbuilderrc you do
+.B not
+have the setting
+.B SOURCE_ONLY_CHANGES=yes
+as this may cause trouble.
+.TP
+\fBdgit cowbuilder\fR [\fIdebbuildopts\fP]
+Like \fBdgit pbuilder\fR, but uses
+.B cowbuilder
+instead of
+.B pbuilder.
+.TP
+\fBdgit gbp-build\fR ...
+Runs
+.B git-buildpackage
+with some suitable options. Options and arguments after gbp-build
+will be passed on to git-buildpackage.
+
+By default this uses \-\-quilt=gbp, so HEAD should be a
+git-buildpackage style branch, not a patches-applied branch.
+
+Tagging, signing and actually uploading should be left to dgit push.
+.TP
+\fBdgit push\fR [\fIsuite\fP]
+Does an `upload', pushing the current HEAD to the archive (as a source
+package) and to dgit-repos (as git commits). The package must already
+have been built ready for upload, with the .dsc and .changes
+left in the parent directory. It is normally best to do the build
+with dgit too (eg with dgit sbuild): some existing build tools pass
+unhelpful options to dpkg-source et al by default, which can result in
+the built source package not being identical to the git tree.
+
+In more detail: dgit push checks that the current HEAD corresponds to
+the .dsc. It then pushes the HEAD to the suite's dgit-repos branch,
+adjusts the .changes to include any .origs which the archive lacks
+and exclude .origs which the archive has
+(so -sa and -sd are not needed when building for dgit push),
+makes a signed git tag, edits the .dsc to contain the dgit metadata
+field, runs debsign to sign the upload (.dsc and .changes), pushes the
+signed tag, and finally uses dput to upload the .changes to the
+archive.
+
+dgit push always uses the package, suite and version specified in the
+debian/changelog and the .dsc, which must agree. If the command line
+specifies a suite then that must match too.
+
+When used on a git-debrebase branch,
+dgit calls git-debrebase
+to prepare the branch
+for source package upload and push.
+.TP
+\fBdgit push-source\fR [\fIsuite\fP]
+Without \fB-C\fR, builds a source package and dgit pushes it. Saying
+\fBdgit push-source\fR is like saying "update the source code in the
+archive to match my git HEAD, and let the autobuilders do the rest."
+
+With \fB-C\fR, performs a dgit push, additionally ensuring that no
+binary packages are uploaded.
+.TP
+\fBdgit rpush\fR \fIbuild-host\fR\fB:\fR\fIbuild-dir\fR [\fIpush args...\fR]
+Pushes the contents of the specified directory on a remote machine.
+This is like running dgit push on build-host with build-dir as the
+current directory; however, signing operations are done on the
+invoking host. This allows you to do a push when the system which has
+the source code and the build outputs has no access to the key:
+
+.TS
+l l.
+1. Clone on build host (dgit clone)
+2. Edit code on build host (edit, git commit)
+3. Build package on build host (dgit build)
+4. Test package on build host or elsewhere (dpkg -i, test)
+5. Upload by invoking dgit rpush on host with your GPG key.
+.TE
+
+However, the build-host must be able to ssh to the dgit repos. If
+this is not already the case, you must organise it separately, for
+example by the use of ssh agent forwarding.
+
+The remaining arguments are treated just as dgit push would handle
+them.
+
+build-host and build\-dir can be passed as separate
+arguments; this is assumed to be the case if the first argument
+contains no : (except perhaps one in [ ], to support IPv6 address
+literals).
+
+You will need similar enough versions of dgit on the build-host and
+the invocation host. The build-host needs gnupg installed, with your
+public key in its keyring (but not your private key, obviously).
+.TP
+.B dgit setup-new-tree
+Configure the current working tree the way that dgit clone would have
+set it up. Like running
+.BR "dgit setup-useremail" ,
+.B setup-mergechangelogs
+and
+.B setup-gitattributes
+(but only does each thing if dgit is configured to do it automatically).
+You can use these in any git repository, not just ones used with
+the other dgit operations.
+Does
+.B not
+run
+.B update-vcs-git
+(as that requires Debian packaging information).
+.TP
+.B dgit setup-useremail
+Set the working tree's user.name and user.email from the
+distro-specific dgit configuration
+.RB ( dgit-distro. \fIdistro\fR .user-name " and " .user-email ),
+or DEBFULLNAME or DEBEMAIL.
+.TP
+.B dgit setup-mergechangelogs
+Configures a git merge helper for the file
+.B debian/changelog
+which uses
+.BR dpkg-mergechangelogs .
+.TP
+.B dgit setup-gitattributes
+Set up the working tree's
+.B .git/info/attributes
+to disable all transforming attributes for all files.
+This is done by defining a macro attribute
+.B dgit-defuse-attrs
+and applying it to
+.BR * .
+For why, see
+.B GITATTRIBUTES
+in
+.BR dgit(7) .
+
+If there is an existing macro attribute line
+.B [attr]dgit-defuse-attrs
+in .git/info/attributes,
+but it is insufficient,
+because it was made by an earlier version of dgit
+and git has since introduced new transforming attributes,
+modifies the macro to disable the newer transformations.
+
+(If there is already a macro attribute line
+.B [attr]dgit-defuse-attrs
+in .git/info/attributes
+which does what dgit requires
+(whatever files it effects),
+this operation does nothing further.
+This fact can be used to defeat or partially defeat
+dgit setup-gitattributes
+and hence
+dgit setup-new-tree.)
+.TP
+.B dgit quilt-fixup
+`3.0 (quilt)' format source packages need changes representing not
+only in-tree but also as patches in debian/patches. dgit quilt-fixup
+checks whether this has been done; if not, dgit will make appropriate
+patches in debian/patches and also commit the resulting changes to
+git.
+
+This is normally done automatically by dgit build and dgit push.
+
+dgit will try to turn each relevant commit in your git history into a
+new quilt patch. dgit cannot convert nontrivial merges, or certain
+other kinds of more exotic history. If dgit can't find a suitable
+linearisation of your history, by default it will fail, but you can
+ask it to generate a single squashed patch instead.
+
+When used with a git-debrebase branch,
+dgit will ask git-debrebase to prepare patches.
+However,
+dgit can make patches in some situations where git-debrebase fails,
+so dgit quilt-fixup can be useful in its own right.
+To always use dgit's own patch generator
+instead of git-debrebase make-patches,
+pass --git-debrebase=true to dgit.
+
+See
+.B FORMAT 3.0 (QUILT)
+in
+.BR dgit(7) .
+.TP
+\fBdgit import-dsc\fR [\fIsub-options\fR] \fI../path/to/.dsc\fR [\fB+\fR|\fB..\fR]branch
+Import a Debian-format source package,
+specified by its .dsc,
+into git,
+the way dgit fetch would do.
+
+This does about half the work of dgit fetch:
+it will convert the .dsc into a new, orphan git branch.
+Since dgit has no access to a corresponding source package archive
+or knowledge of the history
+it does not consider whether this version is newer
+than any previous import
+or corresponding git branches;
+and it therefore does not
+make a pseudomerge to bind the import
+into any existing git history.
+
+Because a .dsc can contain a Dgit field naming a git commit
+(which you might not have),
+and specifying where to find that commit
+(and any history rewrite table),
+import-dsc might need online access.
+If this is a problem
+(or dgit's efforts to find the commit fail),
+consider --no-chase-dsc-distro
+or --force-import-dsc-with-dgit-field.
+
+There is only only sub-option:
+
+.B --require-valid-signature
+causes dgit to insist that the signature on the .dsc is valid
+(using the same criteria as dpkg-source -x).
+Otherwise, dgit tries to verify the signature but
+the outcome is reported only as messages to stderr.
+
+If
+.I branch
+is prefixed with
+.B +
+then if it already exists, it will be simply ovewritten,
+no matter its existing contents.
+If
+.I branch
+is prefixed with
+.B ..
+then if it already exists
+and dgit actually imports the dsc
+(rather than simply reading the git commit out of the Dgit field),
+dgit will make a pseudomerge
+so that the result is necessarily fast forward
+from the existing branch.
+Otherwise, if branch already exists,
+dgit will stop with an error message.