[\fIdgit\-opts\fP] \fIaction\fR ...
.SH DESCRIPTION
.B dgit
-treats the Debian archive as a version control system, and
-bidirectionally gateways between the archive and git. The git view of
-the package can contain the usual upstream git history, and will be
-augmented by commits representing uploads done by other developers not
-using dgit. This git history is stored in a canonical location known
-as
-.B dgit-repos
-which lives outside the Debian archive (currently, on Alioth).
-
-The usual workflow is: 1. clone or fetch; 2. make and commit changes
-in git as desired; 3. run dgit build, dgit sbuild or dgit
-build-source, or generate the source and binary packages for upload
-some other way; 4. do pre-upload tests of the proposed upload; 5. run
-dgit push.
+allows you to treats the Debian archive as if it were a git
+repository. See \fBdgit\fP(7) for detailed information about the data
+model, common problems likely to arise with certain kinds of package,
+etc.
+
+The usual workflow is:
+.br
+1. \fBdgit clone\fR or \fBfetch\fR;
+.br
+2. make, do dev tests, and commit changes in git as desired;
+.br
+3. build packages for upload, using e.g. \fBdgit sbuild\fR
+.br
+4. do pre-upload tests of the proposed upload;
+.br
+5. \fBdgit push\fR.
+.SH OPERATIONS
.TP
\fBdgit clone\fR \fIpackage\fP [\fIsuite\fP] [\fB./\fP\fIdir|\fB/\fP\fIdir\fR]
Consults the archive and dgit-repos to construct the git view of
left on the local branch
.BI dgit/ suite
ready for work, and on the corresponding dgit remote tracking branch.
-Also, the
+The
.B origin
remote will be set up to point to the package's dgit-repos tree
for the distro to which
.I suite
belongs.
+
+For your convenience, the
+.B vcs-git
+remote will be set up from the package's Vcs-Git field, if there is
+one - but note that in the general case the history found there may be
+different to or even disjoint from dgit's view.
.TP
\fBdgit fetch\fR [\fIsuite\fP]
Consults the archive and git-repos to update the git view of
Tagging, signing and actually uploading should be left to dgit push.
.TP
+.B dgit clean
+Cleans the current working tree (according to the --clean= option in
+force).
+.TP
.B dgit help
Print a usage summary.
.TP
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.
+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,
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.
+the source code and the build outputs has no access to the key:
+
+1. Clone on build host (dgit clone)
+.br
+2. Edit code on build host (edit, git commit)
+.br
+3. Build package on build host (dgit build)
+.br
+4. Test package on build host or elsewhere (dpkg -i, test)
+.br
+5. Upload by invoking dgit rpush on host with your GPG key.
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
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 on in [ ], to support IPv6 address
+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-mergechangelogs
+Configures a git merge helper for the file
+.B debian/changelog
+which uses
+.BR dpkg-mergechangelogs .
+You can use this in any git repository, not just ones used with
+the other dgit operations.
.TP
.B dgit quilt-fixup
-Looks to see if the tree is one which dpkg-source cannot properly
-represent. If it isn't, dgit will fix it up for you (in quilt terms,
-by making a new debian/ patch containing your unquilty changes) and
-make a commit of the changes it has made.
+`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.
.TP
.B dgit version
Prints version information and exits.
+.TP
+.BI "dgit clone-dgit-repos-server" " destdir"
+Tries to fetch a copy of the source code for the dgit-repos-server,
+as actually being used on the dgit git server, as a git tree.
.SH OPTIONS
.TP
-.BR --dry-run | -n
+.BR --dry-run " | " -n
Go through the motions, fetching all information needed, but do not
actually update the output(s). For push, dgit does
the required checks and leaves the new .dsc in a temporary file,
but does not sign, tag, push or upload.
.TP
-.BR --damp-run | -L
+.BR --damp-run " | " -L
Go through many more of the motions: do everything that doesn't
involve either signing things, or making changes on the public
servers.
rather than looking in debian/control or debian/changelog.
Valid with dgit fetch and dgit pull, only.
.TP
-.BR --clean=git | -wg
+.BR --clean=git " | " -wg
The source tree should be cleaned, before building a source package
with one of the build options, using
.BR "git clean -xdf" .
-This will delete all files which are not tracked by git.
+This will delete all files which are not tracked by git. Also, -wg
+causes dgit to pass
+.B -nc
+to dpkg-buildpackage, which prevents the package's own clean target
+from being run.
+
+--clean=git is useful when the package's clean target is troublesome;
+the downside is simply that git clean may delete files you forgot to
+git add.
.TP
-.BR --clean=none | -wn
+.BR --clean=git-ff " | " -wgf
+The source tree should be cleaned, before building a source package
+with one of the build options, using
+.BR "git clean -xdff" .
+This is like
+"git clean -xdf"
+but it also removes any subdirectories containing different git
+trees (which only unusual packages are likely to create).
+.TP
+.BR --clean=none " | " -wn
Do not clean the tree before building a source package. If there are
-files which are not in git, a subsequent dgit push will fail.
+files which are not in git, or if the build creates such files, a
+subsequent dgit push will fail.
.TP
-.BR --clean=dpkg-source | -wd
-Use dpkg-buildpackage to do the build, so that the source package
+.BR --clean=dpkg-source " | " -wd
+Use dpkg-buildpackage to do the clean, so that the source package
is cleaned by dpkg-source running the package's clean target.
This is the default. It requires the package's build dependencies.
.TP
-.BR -N | --new
+.BR -N " | " --new
The package may be new in this suite. Without this, dgit will
refuse to push.
.TP
This can be useful with build, if you plan to commit later. (dgit
push will still ensure that the .dsc you upload and the git tree
you push are identical, so this option won't make broken pushes.)
-
-This option may not work properly on `3.0 (quilt)' packages, as in
-that case dgit needs to use and perhaps commit parts of your working
-tree.
.TP
-.BR --no-quilt-fixup
-Do not fix up source format `3.0 (quilt)' metadata. If you use this
-option and the package did in fact need fixing up, dgit push will
+.BI --deliberately- something
+Declare that you are deliberately doing
+.IR something .
+This can be used to override safety catches, including safety catches
+which relate to distro-specific policies. The meanings of
+.IR something s
+understood in the context of Debian are discussed below:
+.TP
+.BR --deliberately-not-fast-forward
+Declare that you are deliberately rewinding history. When pushing to
+Debian, use this when you are making a renewed upload of an entirely
+new source package whose previous version was not accepted for release
+from NEW because of problems with copyright or redistributibility.
+.TP
+.BR --deliberately-include-questionable-history
+Declare that you are deliberately including, in the git history of
+your current push, history which contains a previously-submitted
+version of this package which was not approved (or has not yet been
+approved) by the ftpmasters. When pushing to Debian, only use this
+option after verifying that: none of the rejected-from-NEW (or
+never-accepted) versions in the git history of your current push, were
+rejected by ftpmaster for copyright or redistributability reasons.
+.TP
+.BR --deliberately-fresh-repo
+Declare that you are deliberately rewinding history and want to
+throw away the existing repo. Not relevant when pushing to Debian,
+as the Debian server will do this automatically when necessary.
+.TP
+.BR --quilt=linear
+When fixing up source format `3.0 (quilt)' metadata, insist on
+generating a linear patch stack. If such a stack cannot be generated,
fail.
.TP
+.BR --quilt=auto
+When fixing up source format `3.0 (quilt)' metadata, prefer to
+generate a linear patch stack, but if that doesn't seem possible,
+generate a single squashed patch for all the changes made in git.
+This is not a good idea for an NMU in Debian.
+.TP
+.BR --quilt=smash
+When fixing up source format `3.0 (quilt)' metadata,
+generate a single squashed patch for all the changes made in git.
+This is not a good idea for an NMU in Debian.
+.TP
+.BR --quilt=nofix
+Check whether source format `3.0 (quilt)' metadata would need fixing
+up, but, if it does, fail. You must then fix the metadata yourself
+somehow before pushing. (NB that dpkg-source --commit will not work
+because the dgit git tree does not have a
+.B .pc
+directory.)
+.TP
+.BR --quilt=nocheck " | " --no-quilt-fixup
+Do not check whether up source format `3.0 (quilt)' metadata needs
+fixing up. If you use this option and the metadata did in fact need
+fixing up, dgit push will fail.
+.TP
.BI -D
Prints debugging information to stderr. Repeating the option produces
more output (currently, up to -DD is meaningfully different).
Specifies a single additional option to pass, eventually, to
dpkg-genchanges.
.TP
-.RI \fB--dget=\fR program |\fB--dput=\fR program |...
+.RI \fB--curl=\fR program " | \fB--dput=\fR" program " |..."
Specifies alternative programs to use instead of
-.BR dget ,
+.BR curl ,
.BR dput ,
.BR debsign ,
.BR dpkg-source ,
For dgit, specifies the command to run on the remote host when dgit
rpush needs to invoke a remote copy of itself. (dgit also reinvokes
itself as the EDITOR for dpkg-source --commit; this is done using
-argv[0], and is not affected by --dget=).
+argv[0], and is not affected by --dgit=).
For ssh, the default value is taken from the
.B DGIT_SSH
.BR GIT_SSH )
is relevant.
.TP
-.RI \fB--dget:\fR option |\fB--dput:\fR option |...
+.RI \fB--curl:\fR option " | \fB--dput:\fR" option " |..."
Specifies a single additional option to pass to
-.BR dget ,
+.BR curl ,
.BR dput ,
.BR debsign ,
.BR dpkg-source ,
dgit push looks for single .changes file in the parent directory whose
filename suggests it is for the right package and version - or,
if there is a _multi.changes file, dgit uses that.
+
+If the specified
+.I changesfile
+pathname contains slashes, the directory part is also used as
+the value for
+.BR --build-products-dir ;
+otherwise, the changes file is expected in that directory (by
+default, in
+.BR .. ).
+.TP
+.BI --build-products-dir= directory
+Specifies where to find the built files to be uploaded.
+By default, dgit looks in the parent directory
+.BR .. ).
.TP
.BI --existing-package= package
-dgit push needs to canonicalise the suite name. But currently
-there is no way to ask the archive to do this without knowing the
+dgit push needs to canonicalise the suite name. Sometimes, dgit
+lacks a way to ask the archive to do this without knowing the
name of an existing package. Without --new we can just use the
package we are trying to push. But with --new that will not work, so
we guess
.B dpkg
-or use the value of this option.
+or use the value of this option. This option is not needed with the
+default mechanisms for accessing the archive.
.TP
.BR -h | --help
Print a usage summary.
removed and recreated before dgit starts, rather than removed
after dgit finishes. The directory specified must be an absolute
pathname.
+.TP
+.BI --no-rm-on-error
+Do not delete the destination directory if clone fails.
.SH WORKFLOW - SIMPLE
It is always possible with dgit to clone or fetch a package, make
changes in git (using git-commit) on the suite branch
remote tracking branch
.BR remotes/dgit/dgit/ \fIsuite\fR.
+If you are using dgit to do an NMU, and don't know about the
+maintainers' preferred packaging workflows, you should make your
+changes as a linear series of (logicially separated) commits on top of
+what's already in the archive.
+
If you are lucky the other uploaders have also used dgit and
integrated the other relevant git history; if not you can fetch it
into your tree and cherry-pick etc. as you wish.
Then run
.BR "dgit push"
to actually upload the result.
-.SH MODEL
-You may use any suitable git workflow with dgit, provided you
-satisfy dgit's requirements:
-
-dgit maintains a pseudo-remote called
-.BR dgit ,
-with one branch per suite. This remote cannot be used with
-plain git.
-
-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 will also (by default) make signed tags called
-.BI debian/ version
-and push them to dgit-repos, but nothing depends on these tags
-existing.
-
-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 Dgit
-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. The
-orig tarballs are downloaded (by dgit clone) into the parent
-directory, as with a traditional (non-gitish) dpkg-source workflow.
-You need to retain these tarballs in the parent directory for dgit
-build and dgit push.
-
-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 if you can. In the archive, the delta between upstream
-will be represented in the single Debian patch.
-
-Secondly, you can use `3.0 (quilt)', and regard your quiltish patch
-stack in the archive as primary. You will have to use other tools
-besides dgit to import and export this patch stack. But see below:
-.SH FORMAT 3.0 (QUILT)
-For a format `3.0 (quilt)' source package, dgit may have to make a
-commit on your current branch to contain metadata used by quilt and
-dpkg-source.
-
-This is because (i) the `3.0 (quilt)' source format cannot represent
-certain trees, and (ii) packing up a tree in `3.0 (quilt)' and then
-unpacking it does not always yield the same tree. Instead,
-dpkg-source insists on the trees having extra quilty metadata and
-patch files in the debian/ and .pc/ directories, which dpkg-source
-sometimes modifies.
-
-dgit will automatically work around this braindamage for you when
-building and pushing. The only thing you need to know is that dgit
-build, sbuild, etc., may make a new commit on your HEAD. If you're
-not a quilt user this commit won't contain any changes to files you
-care about.
-
-You can explicitly request that dgit do just this fixup, by running
-dgit quilt-fixup.
-
-We recommend against the use of `3.0 (quilt)'.
-.SH FILES IN THE SOURCE PACKAGE BUT NOT IN GIT
-This section is mainly of interest to maintainers who want to use dgit
-with their existing git history for the Debian package.
-
-Some developers like to have an extra-clean git tree which lacks files
-which are normally found in source tarballs and therefore in Debian
-source packages. For example, it is conventional to ship ./configure
-in the source tarball, but some people prefer not to have it present
-in the git view of their project.
-
-dgit requires that the source package unpacks to exactly the same
-files as are in the git commit on which dgit push operates. So if you
-just try to dgit push directly from one of these extra-clean git
-branches, it will fail.
-
-As the maintainer you therefore have the following options:
-.TP
-\(bu
-Persuade upstream that the source code in their git history and the
-source they ship as tarballs should be identical. Of course simply
-removing the files from the tarball may make the tarball hard for
-people to use.
-.IP
-One answer is to commit the (maybe autogenerated)
-files, perhaps with some simple automation to deal with conflicts and
-spurious changes. This has the advantage that someone who clones
-the git repository finds the program just as easy to build as someone
-who uses the tarball.
-.TP
-\(bu
-Have separate git branches which do contain the extra files, and after
-regenerating the extra files (whenever you would have to anyway),
-commit the result onto those branches.
-.TP
-\(bu
-Provide source packages which lack the files you don't want
-in git, and arrange for your package build to create them as needed.
-This may mean not using upstream source tarballs and makes the Debian
-source package less useful for people without Debian build
-infrastructure.
-.LP
-Of course it may also be that the differences are due to build system
-bugs, which cause unintended files to end up in the source package.
-dgit will notice this and complain. You may have to fix these bugs
-before you can unify your existing git history with dgit's.
.SH CONFIGURATION
dgit looks at the following git config keys to control its behaviour.
You may set them with git-config (either in system-global or per-tree
.TP
.BI dgit-distro. distro .archive-query-default-component
.TP
-.BI dgit-distro. distro .sshdakls-user
+.BI dgit-distro. distro .sshpsql-user
.TP
-.BI dgit-distro. distro .sshdakls-host
+.BI dgit-distro. distro .sshpsql-host
.TP
-.BI dgit-distro. distro .sshdakls-dir
+.BI dgit-distro. distro .sshpsql-dbname
.TP
.BI dgit-distro. distro .ssh
.TP
See
also the --ssh= and --ssh: options.
.TP
-.BR gpg ", " dpkg- "..., " debsign ", " git ", " dget ", " dput ", " LWP::UserAgent
+.BR gpg ", " dpkg- "..., " debsign ", " git ", " curl ", " dput ", " LWP::UserAgent
and other subprograms and modules used by dgit are affected by various
environment variables. Consult the documentaton for those programs
for details.
.SH BUGS
-We should be using some kind of vhost/vpath setup for the git repos on
-alioth, so that they can be moved later if and when this turns out to
-be a good idea.
-
-Debian Policy needs to be updated to describe the new Dgit .dsc
-field (and to specify that it is an RC bug for that field to refer
-to an unavailable commit).
-
-The method of canonicalising suite names is bizarre. See the
-.B --existing-package
-option for one of the implications.
-
-dgit push should perhaps do `git push origin', or something similar,
-by default.
-
-Debian does not have a working rmadison server, so to find out what
-version of a package is in the archive, or to canonicalise suite
-names, we ssh directly into the ftpmaster server.
-
-The mechanism for checking for and creating per-package repos on
-alioth is a hideous bodge. One consequence is that dgit currently
-only works for people with push access.
-
-Debian Maintainers are currently not able to push, as there is not
-currently any mechanism for determining and honouring the archive's
-ideas about access control. Currently only DDs can push.
-
-dgit's representation of format `3.0 (quilt)' source packages does not
-represent the patch stack. Currently the patch series representation
-cannot round trip through the archive. Ideally dgit would represent a
-quilty package with an origin commit of some kind followed by the
-patch stack as a series of commits followed by a pseudo-merge (to make
-the branch fast-forwarding). This would also mean a new `dgit
-rebase-prep' command or some such to turn such a fast-forwarding
-branch back into a rebasing patch stack, and a `force' option to dgit
-push (perhaps enabled automatically by a note left by rebase-prep)
-which will make the required pseudo-merge.
+Debian Maintainers are currently not able to push, as the project
+lacks a list of their ssh keys (!)
+
+dgit's git representation of format `3.0 (quilt)' source packages does
+not represent the patch stack as git commits. Currently the patch
+series representation cannot round trip between git and the archive.
+Ideally dgit would represent a quilty package with an origin commit of
+some kind followed by the patch stack as a series of commits followed
+by a pseudo-merge (to make the branch fast-forwarding). This would
+also mean a new `dgit rebase-prep' command or some such to turn such a
+fast-forwarding branch back into a rebasing patch stack, and a `force'
+option to dgit push (perhaps enabled automatically by a note left by
+rebase-prep) which will make the required pseudo-merge.
If the dgit push fails halfway through, it should be restartable and
idempotent. However this is not true for the git tag operation.
dgit's build functions, and dgit push, should not make any changes to
your current HEAD. Sadly this is necessary for packages in the `3.0
-(quilt)' source format. This is ultimately due to design problems in
-quilt and dpkg-source.
+(quilt)' source format. This is ultimately due to what I consider
+design problems in quilt and dpkg-source.
There should be an option which arranges for the `3.0 (quilt)'
-autocommit to not appear on your HEAD, but instead only in the
+autocommit(s) to not appear on your HEAD, but instead only in the
remote tracking suite branch.
-There should at the very least be some advice in the manpage about how
-to use dgit when the signing key is not available on the same machine
-as the build host.
-
The option parser requires values to be cuddled to the option name.
-dgit assumes knowledge of the archive layout. There appears to be no
-sane way to find the path in the archive pool of the .dsc for a
-particular suite. I'm assured that the archive layout is a
-`well known algorithm' by now.
-
--dry-run does not always work properly, as not doing some of the git
fetches may result in subsequent actions being different. Doing a
non-dry-run dgit fetch first will help.
.SH SEE ALSO
-\fBdget\fP(1),
+\fBdgit\fP(7),
+\fBcurl\fP(1),
\fBdput\fP(1),
\fBdebsign\fP(1),
\fBgit-config\fP(1),
~ianmdlvl / dgit.git / blobdiff