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global-functions: $ScriptInstallUpdate: implement migration mechanism

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Reset $SentConfigChangesNotification and rerun $ScriptInstallUpdate
to test...

:set SentConfigChangesNotification
$ScriptInstallUpdate
This commit is contained in:
Christian Hesse 2020-12-18 17:50:37 +01:00
parent 40dc2415d3
commit 0360a0ef90
4 changed files with 16 additions and 3 deletions
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2
global-config
View file

@ -8,7 +8,7 @@
# Make sure all configuration properties are up to date and this
# value is in sync with value in script 'global-functions'!
:global GlobalConfigVersion 40;
:global GlobalConfigVersion 41;
# This is used for DNS and backup file.
:global Domain "example.com";

2
global-config-overlay
View file

@ -9,7 +9,7 @@
# Make sure all configuration properties are up to date and this
# value is in sync with value in script 'global-functions'!
# Comment or remove to disable change notifications.
:global GlobalConfigVersion 40;
:global GlobalConfigVersion 41;
# Copy configuration from global-config here and modify it.

6
global-config.changes
View file

@ -44,4 +44,10 @@
38="Imported new Let's Encrypt intermediate certificate 'R3'.";
39="Added support for interface specific address list entries in 'ipv6-update'.";
40="Made the certificate renewal time configurable.";
41="Implemented migration mechanism for script updates.";
};
# Migration steps to be applied on script updates
:global GlobalConfigMigration {
41=":global SendNotification; \$SendNotification (\"Migration mechanism\") (\"Congratulations!\nSuccessfully tested the new migration mechanism.\");";
};

9
global-functions
View file

@ -8,7 +8,7 @@
# https://git.eworm.de/cgit/routeros-scripts/about/
# expected configuration version
:global ExpectedConfigVersion 40;
:global ExpectedConfigVersion 41;
# global variables not to be changed by user
:global GlobalFunctionsReady false;
@ -659,6 +659,7 @@
:if ($SentConfigChangesNotification!=$ExpectedConfigVersion && \
$GlobalConfigVersion < $ExpectedConfigVersion) do={
:global GlobalConfigChanges;
:global GlobalConfigMigration;
:local ChangeLogCode;
:local ConfigScript "global-config";
:if ([ :len [ / system script find where name="global-config-overlay" ] ] > 0) do={
@ -684,8 +685,14 @@
:set NotificationMessage ($NotificationMessage . \
"\n * " . $GlobalConfigChanges->[ :tostr $I ]);
$LogPrintExit info ("Change: " . $GlobalConfigChanges->[ :tostr $I ]) false;
:local Migration ($GlobalConfigMigration->[ :tostr $I ]);
:if ([ :typeof $Migration ] = "str") do={
$LogPrintExit info ("Applying migration: " . $Migration) false;
[ :parse $Migration ];
}
}
:set GlobalConfigChanges;
:set GlobalConfigMigration;
} on-error={
$LogPrintExit warning ("Failed fetching changes!") false;
:set NotificationMessage ($NotificationMessage . \