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backend: replace Pylons with TurboGears2
Replace the no-longer-supported Pylons application framework by TurboGears2
which is largely compatible/similar to Pylons.
Some interesting history is described at:
https://en.wikipedia.org/wiki/TurboGears
Changes by Dominik Ruf:
- fix sql config in test.ini
Changes by Thomas De Schampheleire:
- set-up of test suite
- tests: 'fix' repo archival test failure
Between Pylons and TurboGears2, there seems to be a small difference in the
headers sent for repository archive files, related to character encoding.
It is assumed that this difference is not important, and that the test
should just align with reality.
- remove need to import helpers/app_globals in lib
TurboGears2 by default expects helpers and app_globals to be available
in lib. For this reason kallithea/lib/__init__.py was originally changed
to include those files. However, this triggered several types of
circular import problems. If module A imported something from lib (e.g.
lib.annotate), and lib.helpers imported (possibly indirectly) module A,
then there was a circular import. Fix this by overruling the relevant
method of tg AppConfig, which is also hinted in the TurboGears2 code.
Hereby, the include of something from lib does not automatically import
helpers, greatly reducing the chances of circular import problems.
- make sure HTTP error '400' uses the custom error pages
TurboGears2 does not by default handle HTTP status code
'400 (Bad Request)' via the custom error page handling, causing a
standard non-styled error page.
- disable transaction manager
Kallithea currently handles its own transactions and does not need the
TurboGears2 transaction manager. However, TurboGears2 tries to enable it
by default and fails, throwing an error during application initialization.
The error itself seemed to be harmless for normal application functioning,
but was nevertheless confusing.
- add backlash as required dependency: backlash is meant as the WebError
replacement in TurboGears2 (originally WebError is part of Pylons). When
debug==true, it provides an interactive debugger in the browser. When
debug==false, backlash is necessary to show backtraces on the console.
- misc fixes
Replace the no-longer-supported Pylons application framework by TurboGears2
which is largely compatible/similar to Pylons.
Some interesting history is described at:
https://en.wikipedia.org/wiki/TurboGears
Changes by Dominik Ruf:
- fix sql config in test.ini
Changes by Thomas De Schampheleire:
- set-up of test suite
- tests: 'fix' repo archival test failure
Between Pylons and TurboGears2, there seems to be a small difference in the
headers sent for repository archive files, related to character encoding.
It is assumed that this difference is not important, and that the test
should just align with reality.
- remove need to import helpers/app_globals in lib
TurboGears2 by default expects helpers and app_globals to be available
in lib. For this reason kallithea/lib/__init__.py was originally changed
to include those files. However, this triggered several types of
circular import problems. If module A imported something from lib (e.g.
lib.annotate), and lib.helpers imported (possibly indirectly) module A,
then there was a circular import. Fix this by overruling the relevant
method of tg AppConfig, which is also hinted in the TurboGears2 code.
Hereby, the include of something from lib does not automatically import
helpers, greatly reducing the chances of circular import problems.
- make sure HTTP error '400' uses the custom error pages
TurboGears2 does not by default handle HTTP status code
'400 (Bad Request)' via the custom error page handling, causing a
standard non-styled error page.
- disable transaction manager
Kallithea currently handles its own transactions and does not need the
TurboGears2 transaction manager. However, TurboGears2 tries to enable it
by default and fails, throwing an error during application initialization.
The error itself seemed to be harmless for normal application functioning,
but was nevertheless confusing.
- add backlash as required dependency: backlash is meant as the WebError
replacement in TurboGears2 (originally WebError is part of Pylons). When
debug==true, it provides an interactive debugger in the browser. When
debug==false, backlash is necessary to show backtraces on the console.
- misc fixes
24c0d584ba86 e4eabd2558b6 e4eabd2558b6 e4eabd2558b6 e4eabd2558b6 e4eabd2558b6 e4eabd2558b6 e4eabd2558b6 e4eabd2558b6 e4eabd2558b6 e4eabd2558b6 99ad9d0af1a3 e4eabd2558b6 e4eabd2558b6 e4eabd2558b6 99ad9d0af1a3 e4eabd2558b6 e4eabd2558b6 e4eabd2558b6 e4eabd2558b6 99ad9d0af1a3 e4eabd2558b6 e4eabd2558b6 e4eabd2558b6 e4eabd2558b6 03bbd33bc084 e4eabd2558b6 e4eabd2558b6 e4eabd2558b6 e4eabd2558b6 e4eabd2558b6 e4eabd2558b6 e4eabd2558b6 e4eabd2558b6 e4eabd2558b6 e4eabd2558b6 e4eabd2558b6 e4eabd2558b6 e4eabd2558b6 e4eabd2558b6 e4eabd2558b6 e4eabd2558b6 99ad9d0af1a3 99ad9d0af1a3 e4eabd2558b6 e4eabd2558b6 03bbd33bc084 2c3d30095d5e e4eabd2558b6 e285bb7abb28 e285bb7abb28 | ; Kallithea Supervisord
; ##########################
; for help see http://supervisord.org/configuration.html
; ##########################
[inet_http_server] ; inet (TCP) server disabled by default
port=127.0.0.1:9001 ; (ip_address:port specifier, *:port for all iface)
;username=user ; (default is no username (open server))
;password=123 ; (default is no password (open server))
[supervisord]
logfile=/%(here)s/supervisord_kallithea.log ; (main log file;default $CWD/supervisord.log)
logfile_maxbytes=50MB ; (max main logfile bytes b4 rotation;default 50MB)
logfile_backups=10 ; (num of main logfile rotation backups;default 10)
loglevel=info ; (log level;default info; others: debug,warn,trace)
pidfile=/%(here)s/supervisord_kallithea.pid ; (supervisord pidfile;default supervisord.pid)
nodaemon=true ; (start in foreground if true;default false)
minfds=1024 ; (min. avail startup file descriptors;default 1024)
minprocs=200 ; (min. avail process descriptors;default 200)
umask=022 ; (process file creation umask;default 022)
user=username ; (default is current user, required if root)
;identifier=supervisor ; (supervisord identifier, default is 'supervisor')
;directory=/tmp ; (default is not to cd during start)
;nocleanup=true ; (don't clean up tempfiles at start;default false)
;childlogdir=/tmp ; ('AUTO' child log dir, default $TEMP)
environment=HOME=/srv/kallithea ; (key value pairs to add to environment)
;strip_ansi=false ; (strip ansi escape codes in logs; def. false)
; the below section must remain in the config file for RPC
; (supervisorctl/web interface) to work, additional interfaces may be
; added by defining them in separate rpcinterface: sections
[rpcinterface:supervisor]
supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface
[supervisorctl]
serverurl=http://127.0.0.1:9001 ; use an http:// url to specify an inet socket
;username=user ; should be same as http_username if set
;password=123 ; should be same as http_password if set
;prompt=mysupervisor ; cmd line prompt (default "supervisor")
;history_file=~/.sc_history ; use readline history if available
; restart with supervisorctl restart kallithea:*
[program:kallithea]
numprocs = 1
numprocs_start = 5000 # possible should match ports
directory=/srv/kallithea
command = /srv/kallithea/venv/bin/gearbox serve -c my.ini
process_name = %(program_name)s_%(process_num)04d
redirect_stderr=true
stdout_logfile=/%(here)s/kallithea.log
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