ENH: Check OS and choose library name accordingly

Summary

For https://gitlab.indiscale.com/caosdb/customers/lfpb/management/-/issues/372. Actual MR is done in https://gitlab.com/caosdb/caosdb-julialib/-/merge_requests/1/diffs

Check List for the Author

Please, prepare your MR for a review. Be sure to write a summary and a focus and create gitlab comments for the reviewer. They should guide the reviewer through the changes, explain your changes and also point out open questions. For further good practices have a look at our review guidelines

• All automated tests pass
• Reference related Issues
• Up-to-date CHANGELOG.md
• Annotations in code (Gitlab comments)
  • Intent of new code
  • Problems with old code
  • Why this implementation?

Check List for the Reviewer

• I understand the intent of this MR
• All automated tests pass
• Up-to-date CHANGELOG.md
• The test environment setup works and the intended behavior is reproducible in the test environment
• In-code documentation and comments are up-to-date.
• Check: Are there spezifications? Are they satisfied?

For further good practices have a look at our review guidelines.

src/CaosDB.jl

@@ -23,6 +23,11 @@
 
 module CaosDB
 
+"""
+Chose the name of the library according to the OS you're running.
+"""
+library_name = (@static Sys.iswindows() ? "ccaosdb" : "libccaosdb")
+
 module Info
 
 """
@@ -47,6 +52,8 @@ end # Info
 
 module Utility
 
+using CaosDB
+
 """
     get_env_var(var[, default])
 
@@ -57,7 +64,7 @@ instead.
 function get_env_var(var::AbstractString, default::AbstractString = "")
 
     ret = ccall(
-        (:caosdb_utility_get_env_var, (@static Sys.iswindows() ? "ccaosdb" : "libccaosdb")),
+        (:caosdb_utility_get_env_var, CaosDB.library_name),
         Cstring,
         (Cstring, Cstring),
         var,
@@ -89,7 +96,7 @@ mutable struct _Authenticator
             if t.wrapped_authenticator != C_NULL
                 # Only if pointer was filled after real initialization
                 ccall(
-                    (:caosdb_authentication_delete_authenticator, (@static Sys.iswindows() ? "ccaosdb" : "libccaosdb")),
+                    (:caosdb_authentication_delete_authenticator, CaosDB.library_name),
                     Cint,
                     (Ref{_Authenticator},),
                     Ref{_Authenticator}(t),
@@ -118,7 +125,7 @@ function create_plain_password_authenticator(
     auth = Ref{_Authenticator}(_Authenticator())
 
     err_code = ccall(
-        (:caosdb_authentication_create_plain_password_authenticator, (@static Sys.iswindows() ? "ccaosdb" : "libccaosdb")),
+        (:caosdb_authentication_create_plain_password_authenticator, CaosDB.library_name),
         Cint,
         (Ref{_Authenticator}, Cstring, Cstring),
         auth,
@@ -158,7 +165,7 @@ mutable struct _Connection
         function f(t)
             if t.wrapped_connection != C_NULL
                 ccall(
-                    (:caosdb_connection_delete_connection, (@static Sys.iswindows() ? "ccaosdb" : "libccaosdb")),
+                    (:caosdb_connection_delete_connection, CaosDB.library_name),
                     Cint,
                     (Ref{_Connection},),
                     Ref{_Connection}(t),
@@ -184,7 +191,7 @@ mutable struct _CertificateProvider
         function f(t)
             if t.wrapped_certificate_provider != C_NULL
                 ccall(
-                    (:caosdb_connection_delete_certificate_provider, (@static Sys.iswindows() ? "ccaosdb" : "libccaosdb")),
+                    (:caosdb_connection_delete_certificate_provider, CaosDB.library_name),
                     Cint,
                     (Ref{_CertificateProvider},),
                     Ref{_CertificateProvider}(t),
@@ -210,7 +217,10 @@ mutable struct _Configuration
         function f(t)
             if t.wrapped_connection_configuration != C_NULL
                 ccall(
-                    (:caosdb_connection_delete_connection_configuration, (@static Sys.iswindows() ? "ccaosdb" : "libccaosdb")),
+                    (
+                        :caosdb_connection_delete_connection_configuration,
+                        CaosDB.library_name,
+                    ),
                     Cint,
                     (Ref{_Configuration},),
                     Ref{_Configuration}(t),
@@ -232,7 +242,7 @@ function create_pem_file_certificate_provider(path::AbstractString)
     cert_provider = Ref{_CertificateProvider}(_CertificateProvider())
 
     err_code = ccall(
-        (:caosdb_connection_create_pem_file_certificate_provider, (@static Sys.iswindows() ? "ccaosdb" : "libccaosdb")),
+        (:caosdb_connection_create_pem_file_certificate_provider, CaosDB.library_name),
         Cint,
         (Ref{_CertificateProvider}, Cstring),
         cert_provider,
@@ -269,7 +279,7 @@ function create_tls_connection_configuration(
     config = Ref{_Configuration}(_Configuration())
 
     err_code = ccall(
-        (:caosdb_connection_create_tls_connection_configuration, (@static Sys.iswindows() ? "ccaosdb" : "libccaosdb")),
+        (:caosdb_connection_create_tls_connection_configuration, CaosDB.library_name),
         Cint,
         (
             Ref{_Configuration},
@@ -300,7 +310,7 @@ function create_insecure_connection_configuration(host::AbstractString, port::Ci
     config = Ref{_Configuration}(_Configuration())
 
     err_code = ccall(
-        (:caosdb_connection_create_insecure_connection_configuration, (@static Sys.iswindows() ? "ccaosdb" : "libccaosdb")),
+        (:caosdb_connection_create_insecure_connection_configuration, CaosDB.library_name),
         Cint,
         (Ref{_Configuration}, Cstring, Cint),
         config,
@@ -327,7 +337,7 @@ function create_connection(config::Ref{_Configuration})
     connection = Ref{_Connection}(_Connection())
 
     err_code = ccall(
-        (:caosdb_connection_create_connection, (@static Sys.iswindows() ? "ccaosdb" : "libccaosdb")),
+        (:caosdb_connection_create_connection, CaosDB.library_name),
         Cint,
         (Ref{_Connection}, Ref{_Configuration}),
         connection,
@@ -355,7 +365,7 @@ function get_version_info(con::Ref{_Connection})
     info = Ref{CaosDB.Info._VersionInfo}(CaosDB.Info._VersionInfo())
 
     err_code = ccall(
-        (:caosdb_connection_get_version_info, (@static Sys.iswindows() ? "ccaosdb" : "libccaosdb")),
+        (:caosdb_connection_get_version_info, CaosDB.library_name),
         Cint,
         (Ref{CaosDB.Info._VersionInfo}, Ref{_Connection}),
         info,