JGit commit objects are a recursive data structure; they have links to
their parent commits. Serializing a JGit commit will try to recursively
serialize all reachable ancestors as faras they have been loaded. If
that ancestor chain is too long, a StackOverflowError is thrown during
Wicket's page serialization if a page has a reference to sucha JGit
commit.
Fixed by making sure that pages o not contain references to JGit
commits. Use the (existing) wrapper object RepositoryCommit instead.
* RepositoryCommit has a transient reference to the JGit commit and
reads the commit from the repository upon de-serialization.
* RefModel is a similar case (JGit tags/branches may also have links
to the commits they point to). Solved a bit differently by making it
a pure data object by transferring the interesting data from the JGit
object in the constructor.
* Change DataViews instantiated with RevCommit to use RepositoryCommit
instead.
* Change inner anonymous DataViews to ensure they do not have a
synthesized field referencing the "allRefs" map. Such a synthesized
field would also get serialized, and then serialize JGit commits
again.
Finally, remove non-transient logger instances in Wicket classes. Those
might lead to NotSerializableException.
These StackOverflowErrors have been reported in several places since
2014:
* https://groups.google.com/forum/#!topic/gitblit/GH1d8WSlR6Q
* https://bugs.chromium.org/p/gerrit/issues/detail?id=3316
* https://groups.google.com/d/msg/repo-discuss/Kcl0JIGNiGk/0DjH4mO8hA8J
* https://groups.google.com/d/msg/repo-discuss/0_P6A3fjTec/2kcpVPIUAQAJ
* https://github.com/gitblit/gitblit/issues/1011
* https://github.com/tomaswolf/gerrit-gitblit-plugin/issues/21
Allow plugins to extend the top navbar and repository navbar
This change also ties the plugin manager into the Wicket framework and
allows plugins to contribute and mount new pages which are linked by the
top navbar and repository navbar extensions.
A basic issue tracker styled as a hybrid of GitHub and BitBucket issues.
You may attach commits to an existing ticket or you can push a single
commit to create a *proposal* ticket.
Tickets keep track of patchsets (one or more commits) and allow patchset
rewriting (rebase, amend, squash) by detecing the non-fast-forward
update and assigning a new patchset number to the new commits.
Ticket tracker
--------------
The ticket tracker stores tickets as an append-only journal of changes.
The journals are deserialized and a ticket is built by applying the
journal entries. Tickets are indexed using Apache Lucene and all
queries and searches are executed against this Lucene index.
There is one trade-off to this persistence design: user attributions are
non-relational.
What does that mean? Each journal entry stores the username of the
author. If the username changes in the user service, the journal entry
will not reflect that change because the values are hard-coded.
Here are a few reasons/justifications for this design choice:
1. commit identifications (author, committer, tagger) are non-relational
2. maintains the KISS principle
3. your favorite text editor can still be your administration tool
Persistence Choices
-------------------
**FileTicketService**: stores journals on the filesystem
**BranchTicketService**: stores journals on an orphan branch
**RedisTicketService**: stores journals in a Redis key-value datastore
It should be relatively straight-forward to develop other backends
(MongoDB, etc) as long as the journal design is preserved.
Pushing Commits
---------------
Each push to a ticket is identified as a patchset revision. A patchset
revision may add commits to the patchset (fast-forward) OR a patchset
revision may rewrite history (rebase, squash, rebase+squash, or amend).
Patchset authors should not be afraid to polish, revise, and rewrite
their code before merging into the proposed branch.
Gitblit will create one ref for each patchset. These refs are updated
for fast-forward pushes or created for rewrites. They are formatted as
`refs/tickets/{shard}/{id}/{patchset}`. The *shard* is the last two
digits of the id. If the id < 10, prefix a 0. The *shard* is always
two digits long. The shard's purpose is to ensure Gitblit doesn't
exceed any filesystem directory limits for file creation.
**Creating a Proposal Ticket**
You may create a new change proposal ticket just by pushing a **single
commit** to `refs/for/{branch}` where branch is the proposed integration
branch OR `refs/for/new` or `refs/for/default` which both will use the
default repository branch.
git push origin HEAD:refs/for/new
**Updating a Patchset**
The safe way to update an existing patchset is to push to the patchset
ref.
git push origin HEAD:refs/heads/ticket/{id}
This ensures you do not accidentally create a new patchset in the event
that the patchset was updated after you last pulled.
The not-so-safe way to update an existing patchset is to push using the
magic ref.
git push origin HEAD:refs/for/{id}
This push ref will update an exisitng patchset OR create a new patchset
if the update is non-fast-forward.
**Rebasing, Squashing, Amending**
Gitblit makes rebasing, squashing, and amending patchsets easy.
Normally, pushing a non-fast-forward update would require rewind (RW+)
repository permissions. Gitblit provides a magic ref which will allow
ticket participants to rewrite a ticket patchset as long as the ticket
is open.
git push origin HEAD:refs/for/{id}
Pushing changes to this ref allows the patchset authors to rebase,
squash, or amend the patchset commits without requiring client-side use
of the *--force* flag on push AND without requiring RW+ permission to
the repository. Since each patchset is tracked with a ref it is easy to
recover from accidental non-fast-forward updates.
Features
--------
- Ticket tracker with status changes and responsible assignments
- Patchset revision scoring mechanism
- Update/Rewrite patchset handling
- Close-on-push detection
- Server-side Merge button for simple merges
- Comments with Markdown syntax support
- Rich mail notifications
- Voting
- Mentions
- Watch lists
- Querying
- Searches
- Partial miletones support
- Multiple backend options
Add support for per-repository bugtraq configuration
Imported the reference implementation contributed by syntevo which
is used in their SmartGit product. You may create a bugtraq config
section inf your .git/config file OR you may add a .gitbugtraq file
to the root of your repository.
Example:
[bugtraq "issues"]
url = http://code.google.com/p/gitblit/issues/detail?id=%BUGID%
logRegex = "[Ii]ssue[-#:\\s]{1}\\d+"
logRegex1 = "\\d+"
[bugtraq "[pullrequests"]
url = "https://github.com/gitblit/gitblit/pull/%BUGID%"
logRegex = "(?:pull request|pull|pr)\\s*[-#]?([0-9]+)"
Change-Id: Iaba305bf4280d08cc4d1abf533c2f1365470a43f
Define manager interfaces and update all of Gitblit to use managers
These manager interfaces define how the GitBlit singleton will
eventually be split into smaller component managers. The Wicket app and
all servlets have been updated to request the needed managers. There
are _very_ few method signature changes - although there are a handful.
This is a surgical sharding of responsibility based on a proof of
concept refactor. Instead of random references to GittBlit.self()
there are now precise references to the manager interface required to
accomplish some task. Some tasks may require references to multiple
managers.
The code is now littered with calls to GitBlit.getManager(class) and
those familiar with the code-base will no doubt notice the duplication
of methods from IUserService in IUserManager and the addition of
implementation methods in the GitBlit context class. When the
GitBlit class is broken apart and the existing external authentication
user service classes are refactored to AuthenticationService classes,
this will again simplify and flatten. But in order to safely and
cleanly modularize the stable code-base we will have to live with a
little duplication for a short while.
Change-Id: I7314ec8acaab2dcc6092785ed4434cc09fdbbe16
Eliminate nearly all direct GitBlit singleton references in Wicket
This is the first step towards modularization and injection. All
direct references to the GitBlit singleton within the Wicket pages
and panels have been replaced to proxy methods in the GitBlitWebApp
singleton. There are still two Wicket classes which rely on the
GitBlit singleton; those require manual instantiation (servlet 3).
Change-Id: I0cdbbcf87959d590c446c99abb09c07c87c737bc
The mirror executor will fetch ref updates for repository mirrors. This
feature is disabled by default and can be enabled by setting
git.enableMirroring=true. The period between update checks is
configurable, but it is global. An individual rpeository may not set
it's own update schedule.
Requirements:
1. you must manually clone the repository using native git
git clone --mirror git://somewhere.com/myrepo.git
2. the "origin" remote must be the mirror source
3. the "origin" repository must be accessible without authentication OR
the credentials must be embedded in the origin url (not recommended)
Notes:
1. "origin" SSH urls are untested and not likely to work
2. mirrors cloned while Gitblit is running are likely to require
clearing the gitblit cache (link on the repositories page of an
administrator account)
3. Gitblit will automatically repair any invalid fetch refspecs with a
"//" sequence.
Change-Id: I4bbe3fb2df106366ae4c2313596d0fab0dfcac46
Support for intra-Markdown linking using [[WikiLinks]] syntax (issue-324)
All WikiLinks must be specified relative to the root of the repository.
The displayed link text is stripped to just the document name. Spaces in
the document name are replaced with '-' characters; this is consistent with
wiki syntax and Github.
Change-Id: Id3fb1b5441352d9bacc4993a5b85882db113693b
Renamed pushlog to reflog to better match it's current and future purpose.
Split PushesPanel into ReflogPanel and DigestsPanel.
Overhauled project pages and gave them a coherent purpose from the dashboard.
* Properly support timezone-based date groupings
* Polish css for the major browsers on Win & Linux
* Use Gitblit constants for refs instead of JGit constants
Tom
Paul Martin
James Moger
Bret K. Ikehara