does an `upload', pushing the current HEAD to the archive (as a source
package) and to dgit-repos (as git commits). This also involves
making a signed git tag, and signing the files to be uploaded to the
-archive.
-.SH MODEL AND WORKFLOW
+archive. (For a format `3.0 (quilt)' source package, dgit push
+may also have to make a commit on your current branch to contain
+quilt metadata. It will do this automatically.)
+
+.B dgit quilt-fixup
+looks to see if there is quilt patch metadata left over by dpkg-source
+-b, and if so makes a git commit of it. This is normally done
+automatically by dgit push. dgit quilt-fixup takes no additional
+arguments. Note that it will only process a patch generated by
+dpkg-source for the most recent version (according to the
+debia/changelog).
+.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
+.RB ( "git checkout dgit/" \fIsuite\fR)
+and then dgit push. You can use whatever gitish techniques you like
+to construct the commit to push; the only requirement is that it is a
+descendant of the state of the archive, as provided by dgit in the
+remote tracking branch
+.BR remotes/dgit/ \fIsuite\fR.
+
+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.
+.SH WORKFLOW - INTEGRATING BETWEEN DGIT AND OTHER GIT HISTORY
+If you are the maintainer of a package dealing with uploads made
+without dgit, you will probably want to merge the synthetic commits
+(made by dgit to represent the uploads) into your git history.
+Normally you can just merge the dgit branch into your own master, or
+indeed if you do your work on the dgit local suite branch
+.BI dgit/ suite
+you can just use dgit pull.
+
+However the first time dgit is used it will generate a new origin
+commit from the archive which won't be linked into the rest of your
+git history. You will need to merge this.
+
+If last upload was in fact made with git, you should usually proceed
+as follows: identify the commit which was actually used to build the
+package. (Hopefully you have a tag for this.) Check out the dgit
+branch
+.RB ( "git checkout dgit/" \fIsuite\fR)
+and merge that other commit
+.RB ( "git merge debian/" \fIversion\fR).
+Hopefully this merge will be trivial because the two trees should
+be the same. The resulting branch head can be merged into your
+working branches
+.RB ( "git checkout master && git merge dgit/" \fIsuite\fR).
+
+If last upload was not made with git, a different approach is required
+to start using dgit. First, do
+.B dgit fetch
+(or clone) obtain a git history representation of what's in the
+archive and record it in the
+.BI remotes/dgit/ suite
+tracking branch. Then construct somehow, using your other git history
+plus appropriate diffs and cherry picks from the dgit remote tracking
+branch, a git commit whose tree corresponds to the tree to use for the
+next upload. If that commit-to-be-uploaded is not a descendant of the
+dig remote tracking branch, check it out and say
+.BR "git merge -s ours remotes/dgit/" \fIsuite\fR;
+that tells git that we are deliberately throwing away any differences
+between what's in the archive and what you intend to upload.
+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:
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; the single parent is the last known upload - that is,
-the contents of the dgit/suite branch.
+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.
+
+Secondly, you can 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. For `3.0 (quilt)' packages, dgit has to do
+more work to work around quilt braindamage. See also the BUGS
+section. We recommend against the use of `3.0 (quilt)'.
.SH OPTIONS
.TP
.BR --dry-run | -n
there is no 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 that
+we guess
.B dpkg
-exists in the target suite. If it doesn't, you can use this option to
-specify a package which does. If the suite is empty, bad luck.
+or use the value of this option.
.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.default.distro
.TP
-.BI dgit.default.username
+.BI dgit-distro. distro .username
.TP
.BI dgit-distro. distro .git-url
.TP
+.BI dgit-distro. distro .git-user
+.TP
.BI dgit-distro. distro .git-host
.TP
.BI dgit-distro. distro .git-proto
.TP
.BI dgit-distro. distro .archive-query-default-component
.TP
+.BI dgit-distro. distro .sshdakls-user
+.TP
+.BI dgit-distro. distro .sshdakls-host
+.TP
+.BI dgit-distro. distro .sshdakls-dir
+.TP
.BI dgit-distro. distro .ssh
.TP
.BR dgit.default. *
The method of canonicalising suite names is bizarre. See the
.B --existing-package
-option for one of the implication.s
+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.
If the dgit push fails halfway through, it should be restartable and
idempotent. However this is not true for the git tag operation.
+Also, it would be good to check that the proposed signing key is
+available before starting work.
dgit's handling of .orig.tar.gz is not very sophisticated. Ideally
the .orig.tar.gz could be transported via the git repo as git tags.
Doing this is made more complicated by the possibility of a `3.0
(quilt)' package with multiple .orig tarballs.
+`3.0 (quilt)' packages have an additional difficulty: if these are
+edited in the most normal way, and then fed to dpkg-buildpackage,
+dpkg-source will add extra quilt patch metadata to the source tree
+during the source package build. This extra metadata is then of
+course not included in the git history. So dgit push needs to commit
+it for you, to make sure that the git history and archive contents are
+identical. That this is necessary is a bug in the `3.0 (quilt)'
+format.
+
The error messages are often unhelpfully terse and tend to refer to
line numbers in dgit.
~ianmdlvl / dgit.git / blobdiff