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# HACKING -*- org -*-
#+TITLE: Hacking notes for GPGME++
#+STARTUP: showall
* How to contribute
** No more ChangeLog files
Do not modify any of the ChangeLog files in GPGME++. We put change
information only in the GIT commit log, and generate a top-level
ChangeLog file from logs at "make dist" time. As such, there are
strict requirements on the form of the commit log messages.
** Commit log requirements
Your commit log should always start with a one-line summary, the
second line should be blank, and the remaining lines are usually
ChangeLog-style entries for all affected files. However, it's fine
-- even recommended -- to write a few lines of prose describing the
change, when the summary and ChangeLog entries don't give enough of
the big picture. Omit the leading TABs that you're used to seeing
in a "real" ChangeLog file, but keep the maximum line length at 72
or smaller, so that the generated ChangeLog lines, each with its
leading TAB, will not exceed 80 columns. If you want to add text
which shall not be copied to the ChangeLog, separate it by a line
consisting of two dashes at the begin of a line.
Note that ./autogen.sh installs a git hook to do some basic syntax
checking on the commit log message.
Typo fixes and documentation updates don't need a ChangeLog entry;
thus you would use a commit message like
#+begin_example
Fix typo in a comment
--
#+end_example
The marker line here is important; without it the first line would
appear in the ChangeLog.
If you exceptionally need to have longer lines in a commit log you may
do this after this scissor line:
#+begin_example
# ------------------------ >8 ------------------------
#+end_example
(hash, blank, 24 dashes, blank, scissor, blank, 24 dashes).
Note that such a comment will be removed if the git commit option
=--cleanup-scissor= is used.
** License policy
GPGME++ is currently licensed under the LGPLv2.0+ with some tests
being under the GPLv2(only). We may eventually update to a newer
version of the licenses or a combination of them. It is thus
important, that all contributed code allows for an update of the
license; for example we can't accept code under the LGPLv2(only).
If you want to contribute code or documentation to GPGME++ you are
asked to assert that the contribution is in accordance to the "GPGME++
Developer's Certificate of Origin" as found in the file "DCO".
Except for a slight wording change, this DCO is identical to the one
used by the Linux kernel. Please take these simple steps:
- Decide which mail address you want to use. Please have your real
name in the address and not a pseudonym. Anonymous contributions
can only be done if you find a proxy who certifies for you.
- If your employer or school might claim ownership of code written
by you; you need to talk to them to make sure that you have the
right to contribute under the DCO.
- Send an OpenPGP signed mail to the gnupg-devel@gnupg.org public
mailing list from your mail address. Include a copy of the DCO as
found in the official master branch. Insert your name and email
address into the DCO in the same way you want to use it later.
Example:
Signed-off-by: Joe R. Hacker <joe@example.org>
If you need it, you may perform simple transformations on the mail
address: Replacing "@" by " at " or "." by " dot ".)
- That's it. From now on you only need to add a "Signed-off-by:"
line with your name and mail address to the GIT commit message.
It is recommended to send the patches using a PGP/MIME signed
mail.
** Coding standards
Please follow the KDE Coding styles. See:
https://community.kde.org/Policies/Frameworks_Coding_Style
If you are in doubt consult the existing code as an example. Do no
re-indent code without a need. If you really need to do it, use a
separate commit for such a change.
** Commit log keywords
- GnuPG-bug-id :: Values are comma or space delimited bug numbers
from bug.gnupg.org pertaining to this commit.
- Debian-bug-id :: Same as above but from the Debian bug tracker.
- CVE-id :: CVE id number pertaining to this commit.
- Regression-due-to :: Commit id of the regression fixed by this commit.
- Fixes-commit :: Commit id this commit fixes.
- Reported-by :: Value is a name or mail address of a bug reporter.
- Suggested-by :: Value is a name or mail address of someone how
suggested this change.
- Co-authored-by :: Name or mail address of a co-author
- Some-comments-by :: Name or mail address of the author of
additional comments (commit log or code).
- Proofread-by :: Sometimes used by translation commits.
- Signed-off-by :: Name or mail address of the developer
* Debug hints
- The environment variable GPGMEPP_INTERACTOR_DEBUG enables debugging
of the EditInteractor classes. Allowed values are `stdout`, `stderr`,
or a file path.
- The environment variable GPGME_DEBUG enables debugging of gpgme;
see gpgme's debug.[ch] for details.
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