Prefixes '>=' or '==' can be used in MICKA_ACCEPTED_VERSION

CHANGELOG.md

@@ -9,6 +9,7 @@
 ### Changes
 - [#169](https://github.com/LayerManager/layman/issues/169) [POST Workspace Layers](doc/rest.md#post-workspace-layers) accepts also compressed data files in ZIP format (`*.zip`) in `file` parameter. [PATCH Workspace Layer](doc/rest.md#patch-workspace-layer) accepts also data file in ZIP format (`*.zip`) in `file` parameter.
 - [#503](https://github.com/LayerManager/layman/issues/503) Normalized GeoTIFF for raster files are also compressed.
+- [#232](https://github.com/LayerManager/layman/issues/232) Prefixes '>=' or '==' can be used in [MICKA_ACCEPTED_VERSION](doc/env-settings.md#micka_accepted_version).
 - [#169](https://github.com/LayerManager/layman/issues/169) [GET Workspace Layer](doc/rest.md#get-workspace-layer) returns path to main file inside archive if zipped file was sent (key `file.path`).
 - [#465](https://github.com/LayerManager/layman/issues/465) Fix situation, when Layman does not start if *.qgis file of the first layer with QML style does not exist. It was already fixed in v1.14.1.
 - [#464](https://github.com/LayerManager/layman/issues/464) Fix publishing layers with unusual attribute  names (e.g. `x,` or `Číslo`) and QML styles. It was already fixed in v1.14.1.

doc/env-settings.md

@@ -203,7 +203,7 @@ Internal URL of [OGC Catalogue Service v2.0.2](https://www.opengeospatial.org/st
 Public URL of [OGC Catalogue Service v2.0.2](https://www.opengeospatial.org/standards/cat) endpoint. Tested with [Micka](http://micka.bnhelp.cz/).
 
 ### MICKA_ACCEPTED_VERSION
-Version of Micka that Layman will accept on startup encoded as `version:revision`, e.g. `2020.014:2020-04-15.01`. If it is not set, a version defined in [LAYMAN_SETTINGS_MODULE](#LAYMAN_SETTINGS_MODULE) will be accepted.
+Version of Micka that Layman will accept on startup encoded as `version:revision`, e.g. `2020.014:2020-04-15.01`. Also, on one fo '>=' or '==' prefixes can be used with obvious meaning. For prefix '>=', version and revision are compared independently as strings. If the variable is not set, a version defined in [LAYMAN_SETTINGS_MODULE](#LAYMAN_SETTINGS_MODULE) will be accepted. If none prefix is used, value is compared as with '=='.
 
 ### MICKA_HOSTPORT
 String with public domain and optionally port, e.g. `<domain>` or `<domain>:<port>`. Passed as configuration to Micka for demo purposes.

src/layman_settings.py

@@ -203,11 +203,13 @@
 CSW_RECORD_URL = os.getenv('CSW_RECORD_URL', None)
 
 # # tuples like (version, revision)
-MICKA_ACCEPTED_VERSION = [
-    ('2020.014', '2020-04-15.01'),
-] if ':' not in os.getenv('MICKA_ACCEPTED_VERSION', '') else [
-    tuple(os.environ['MICKA_ACCEPTED_VERSION'].split(':'))
-]
+MICKA_REGEXP = r"^(?P<operation>==|>=|)(?P<version>[0-9.]+):(?P<revision>[0-9-.]+)$"
+MICKA_REGEXP_MATCH = re.search(MICKA_REGEXP, os.getenv('MICKA_ACCEPTED_VERSION', '')) or re.search(MICKA_REGEXP,
+                                                                                                   '=sgdf=2020.014:2020-04-15.01')
+assert MICKA_REGEXP_MATCH, f'os.getenv(MICKA_ACCEPTED_VERSION)={os.getenv("MICKA_ACCEPTED_VERSION", "")}, MICKA_REGEXP_MATCH={MICKA_REGEXP_MATCH}'
+assert len(
+    MICKA_REGEXP_MATCH.groups()) == 3, f'os.getenv(MICKA_ACCEPTED_VERSION)={os.getenv("MICKA_ACCEPTED_VERSION", "")}, MICKA_REGEXP_MATCH={MICKA_REGEXP_MATCH}'
+MICKA_ACCEPTED_VERSION = MICKA_REGEXP_MATCH.groups()
 
 LAYMAN_PUBLIC_URL_SCHEME = urlparse(LAYMAN_CLIENT_PUBLIC_URL).scheme
 

src/wait_for_deps.py

@@ -130,7 +130,13 @@ def main():
             version_match = re.search(MICKA_VERSION_RE, response)
             assert (version_match and len(version_match.groups()) == 2), 'Unknown version of Micka!'
             found_version = version_match.groups()
-            assert found_version in settings.MICKA_ACCEPTED_VERSION, f"Found Micka version {found_version}, but expecting one of {settings.MICKA_ACCEPTED_VERSION}. Please use one of expected version, e.g. by upgrading/downgrading Micka. Take special care about Micka's database."
+            err_message = f"Found Micka version {found_version}, but expecting version fulfilling {settings.MICKA_ACCEPTED_VERSION}. Please use one of expected version, e.g. by upgrading/downgrading Micka. Take special care about Micka's database."
+            if settings.MICKA_ACCEPTED_VERSION[0] == '>=':
+                assert found_version[0] >= settings.MICKA_ACCEPTED_VERSION[1] and found_version[1] >= settings.MICKA_ACCEPTED_VERSION[2], err_message
+            elif settings.MICKA_ACCEPTED_VERSION[0] in ('==', ''):
+                assert found_version == (settings.MICKA_ACCEPTED_VERSION[1], settings.MICKA_ACCEPTED_VERSION[2]), err_message
+            else:
+                raise NotImplementedError(f"Unknown Micka version comparision: {settings.MICKA_ACCEPTED_VERSION[0]}")
             print(f"Found Micka version {found_version}.")
 
             print(f"Attempt {attempt}/{MAX_ATTEMPTS} successful.")