Remove project name validation (#741)

Author: pkoenig10

changelog/@unreleased/pr-741.v2.yml

@@ -0,0 +1,6 @@
+type: improvement
+improvement:
+  description: Project names are no longer validation. Any value can be used for a
+    project name.
+  links:
+  - https://github.com/palantir/docker-compose-rule/pull/741

docker-compose-rule-core/src/main/java/com/palantir/docker/compose/configuration/ProjectName.java

@@ -15,15 +15,10 @@
  */
 package com.palantir.docker.compose.configuration;
 
-import static com.google.common.base.Preconditions.checkState;
-
 import com.google.common.collect.ImmutableList;
 import java.util.List;
 import java.util.Optional;
 import java.util.UUID;
-import java.util.function.Predicate;
-import java.util.regex.Pattern;
-import org.immutables.value.Value.Check;
 import org.immutables.value.Value.Immutable;
 import org.immutables.value.Value.Parameter;
 
@@ -35,29 +30,6 @@ public abstract class ProjectName {
     @Parameter
     protected abstract Optional<String> projectName();
 
-    @Check
-    protected void validate() {
-        if (!projectName().isPresent()) {
-            return;
-        }
-
-        checkState(
-                projectName().get().trim().length() > 0,
-                "ProjectName must not be blank. If you want to omit the project name, use ProjectName.omit()");
-
-        checkState(
-                validCharacters(projectName().get()),
-                "ProjectName '%s' not allowed, please use lowercase letters and numbers only.",
-                projectName().get());
-    }
-
-    // Only allows strings that docker-compose-cli would not modify
-    // https://github.com/docker/compose/blob/85e2fb63b3309280a602f1f76d77d3a82e53b6c2/compose/cli/command.py#L84
-    protected boolean validCharacters(String projectName) {
-        Predicate<String> illegalCharacters = Pattern.compile("[^a-z0-9]").asPredicate();
-        return !illegalCharacters.test(projectName);
-    }
-
     public String asString() {
         return projectName()
                 .orElseThrow(() -> new IllegalStateException(

docker-compose-rule-core/src/test/java/com/palantir/docker/compose/configuration/ProjectNameShould.java

@@ -67,21 +67,6 @@ public void return_empty_command_when_omitted() {
         assertThat(command).isEmpty();
     }
 
-    @Test
-    public void reject_blanks_in_from_string() {
-        exception.expect(IllegalStateException.class);
-        exception.expectMessage("ProjectName must not be blank.");
-        ProjectName.fromString(" ");
-    }
-
-    @Test
-    public void match_validation_behavior_of_docker_compose_cli() {
-        exception.expect(IllegalStateException.class);
-        exception.expectMessage(
-                "ProjectName 'Crazy#Proj ect!Name' not allowed, please use lowercase letters and numbers only.");
-        ProjectName.fromString("Crazy#Proj ect!Name");
-    }
-
     @Test
     public void should_return_the_project_name_when_asString_called() {
         String projectName = ProjectName.fromString("projectname").asString();