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A previous refactoring messed up the paths used in the start.boot
file used in intermediate releases generated for emulator upgrades.
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* siri/unmatched_returns/OTP-10908:
Fix unmatched_return warnings in release_handler
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* Update systool_lib:read_term/1 to honour magic encoding comment in file.
* Add unicode option to re:compile and re:run when appropriate,
allowing e.g. unicode filenames.
* systools_make to allow unicode strings in .rel and .app files
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remove_file in release_handler would fail silently and leave directories
in inconsistent states if there was symlinks in a release directory
also added a test, otp_9864 to test change
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systools:make_tar has recently been updated to store the .rel file
in both releases and releases/<vsn> directories. Ths same commit
removed copying of this file from releases to releases/<vsn> in
release_handler:unpack_release. This commit adde this copy again to
make sure the file is not lost if the tar file was created with an
older systools.
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systool:make_tar stores the rel file in the releases directory. When
unpacking with release_handler:unpack_release, the file is
automatically moved to releases/<vsn>/. If, however, the tar file is
unpacked manually, the rel file might not be moved, and the next
release unpacked might overwrite the rel file. To overcome this,
systools:make_tar now stores a copy of the rel file in releases/<vsn>/
directly and it is not longer necessary to move the file after
unpacking.
The reason for keeping the file in the releases directory also is that
is needs to be extracted separately before the release version <vsn>
is known.
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* siri/sasl/upgrade-erts/OTP-9438:
Fix bug in erts upgrade on windows
Add release vsn info to erts_vsn_changed warning
Check for sasl application in systools:make_script and make_relup
Add syntax check of relup to check_install_release and install_release
Add documentation for upgrade from pre R15 to post R15 sasl
Handle upgrade from pre R15 to post R15 sasl
Step version of sasl to 2.2 for R15
Document upgrade instructions restart_new_emulator and restart_emulator
Wait for two restarts in upgrade_restart test
Add restart_new_emulator instruction to kernel, stdlib and sasl appups
Distinguish restart_new_emulator from restart_emulator in upgrade instructions
Upgrade erts: merge sys.config for tmp release instead of using old
Allow regexp for version in .appup
Restart emulator before running upgrade script when erts is upgraded
Conflicts:
lib/sasl/src/release_handler.erl
lib/sasl/test/release_handler_SUITE.erl
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The service which represents the temporary release during erts upgrade
on windows was never deleted. This has been corrected. The service is
now renamed just after the emulator restart.
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Earlier, there was only one valid instruction to restart the emulator
in an appup/relup script, 'restart_new_emulator'. A new instuction,
'restart_emulator', is now added, and the meaning is as follows:
'restart_new_emulator' is mainly for the core applications (erts,
kernel, stdlib and sasl), and it indicates that there is new core
functionality in the release and the emulator needs to be restarted
before executing the upgrade scripts. If this instruction exists, a
temporary release will be created which consists of the new version
erts, kernel, stdlib and sasl, and the old versions of all other
applications. After restarting the emulator with this temporary
release, the rest of the upgrade instructions are executed, including
loading of new versions.
'restart_emulator' can be used by any application if a restart of the
emulator is needed after the upgrade instructions have been
executed. In this case, the emulator will be restarted with the new
release (i.e. not a tempoarary one) after all other upgrade
instructions for all applications have been excecuted.
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The sys.config file used for the temporary release in an erts upgrade
is now a hybrid where kernel, stdlib and sasl configuration is taken
from the new release, and other configuration is taken from the old
release. I.e. similar to how the temporary boot file is created.
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If the version of erts differs between two releases, the release
handler automatically adds a 'restart_new_emulator' instruction to the
upgrade script (relup). Earlier, this instruction was always added at
the end of the upgrade script, causing the following sequence of
operations during an upgrade (a bit simplified):
1. suspend processes
2. load new code
3. execute code_change functions
4. resume processes
5. restart emulator with new erts version
Obviously, this caused the new code to be loaded into the old emulator
and this would fail if the beam format had been changed in the new
version of the emulator.
To overcome this problem, this commit changes the order of the
instructions, so for upgrade with changed erts version we now have:
1. restart emulator with new erts, kernel, stdlib and sasl versions,
but old versions of all other applications.
2. suspend processes
3. load new code
4. execute code_change functions
5. resume processes
This is implemented by creating a temporary release, including new
erts, kernel, stdlib and sasl from the new release and all other
applications from the old release. A new boot file for this temporary
release is created, which includes a new 'apply' instruction to run
release_handler:new_emulator_upgrade/2. Then the emulator is restarted
using this boot file - and release_handler:new_emulator_upgrade/2
executes the rest of the upgrade script.
For downgrade, the order will be as before:
1. suspend processes
2. execute code_change functions with 'down'-indication
3. load old code
4. resume processes
5. restart emulator with old erts version
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This is an extension to which_releases that allows a user to specify the
status of the releases they wish to be returned. For instance it allows
for quickly determining which release is 'permanent' without the need of
parsing the entire release list.
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If a path was given as ONLY 'ebin' and not for example './ebin', then
systools:make_tar would fail with a function_clause exception in
filename:join/1. The bug was in systools_make:appDir/1, which tried to
find the parent directory of the given path. This function now uses
library functions filename:basename and filename:dirname instead of
general list manipulations.
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Given this option, all modules that are to be purged by indicated
upgrade,and that can be soft purged, will be purged when all other
check of check_install_release have been successfully completed.
I added a note under install_release in the reference manual about how
to use check_install_release with this new option in order to speed up
the execution of install_release.
I also added three more test cases for this functionality.
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If a new version of an application did not include any erlang module
changes, the code path of the application was not updasted unless a
'load_object_code' instruction was added for the application. This
would be a problem if e.g. only some files in the priv dir were
changed, since calls to code:lib_dir or code:priv_dir would then point
to the old location of the application. This has been corrected - now
code:replace_path/2 will be called for all applications that are
changed (i.e. when the application's vsn is changed in the .rel file).
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This commit adds test cases from release_handler_SUITE on windows,
including some corrections in erlsrv and release_handler.
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list
There are a couple of places in release_handler and release_handler_1
that assumed it has a disk to read from, which in the case of an
erl_prim_loader Loader other than efile is not necessarily true
Add check_paths/2 to do the equivalent of check_path/1 for when there
is a Masters list
Change get_vsn to no longer get sent File paths but instead use the
Bin since beam_lib:version being sent a file path causes it to read
the local file system
Add get_current_vsn/1 as an equivalent to
beam_lib:version(code:which(Mod)), but using erl_prim_loader:get_file
instead of reading from local file system
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* bg/sasl-infinity:
Prepare patch release
sasl: Use gen_server:call/3 with infinity timeout
OTP-8506 bg/sasl-infinity
Use an infinity timeout in all calls to gen_server:call() in the sasl
application.
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gen_server:call/2,3 now sets up a monitor to make sure that
it will be noticed if the called process dies. Therefore,
there is almost never a good reason to use gen_server:call/2
with its default 5 seconds timeout. Use gen_server:call/3
with the 'infinity' timeout instead.
To make sure we use the 'infinity' timeout every time,
wrap the to call gen_server:call/3 in a local call/1 function
in each module.
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