Add CustomCIPath to resource gitlab_project (#662)

* Add CustomCIPath to resource `gitlab_project`

* Delete acc test for simple GitLabProject attribute.
 - Amend existing Acceptance test to reflect this change in the default project

Author: kitos9112

docs/resources/project.md

@@ -107,6 +107,8 @@ consult the [gitlab documentation](https://docs.gitlab.com/ee/user/project/repos
 
 * `build_coverage_regex` - (Optional) Test coverage parsing for the project.
 
+* `ci_config_path` - (Optional) Custom Path to CI config file.
+
 ## Attributes Reference
 
 The following additional attributes are exported:

gitlab/resource_gitlab_project.go

@@ -277,6 +277,10 @@ var resourceGitLabProjectSchema = map[string]*schema.Schema{
 		Type:     schema.TypeString,
 		Optional: true,
 	},
+	"ci_config_path": {
+		Type:     schema.TypeString,
+		Optional: true,
+	},
 }
 
 func resourceGitlabProject() *schema.Resource {
@@ -330,7 +334,7 @@ func resourceGitlabProjectSetToState(d *schema.ResourceData, project *gitlab.Pro
 	d.Set("mirror_overwrites_diverged_branches", project.MirrorOverwritesDivergedBranches)
 	d.Set("only_mirror_protected_branches", project.OnlyMirrorProtectedBranches)
 	d.Set("build_coverage_regex", project.BuildCoverageRegex)
-
+	d.Set("ci_config_path", project.CIConfigPath)
 	return nil
 }
 
@@ -358,6 +362,7 @@ func resourceGitlabProjectCreate(d *schema.ResourceData, meta interface{}) error
 		Mirror:                                    gitlab.Bool(d.Get("mirror").(bool)),
 		MirrorTriggerBuilds:                       gitlab.Bool(d.Get("mirror_trigger_builds").(bool)),
 		BuildCoverageRegex:                        gitlab.String(d.Get("build_coverage_regex").(string)),
+		CIConfigPath:                              gitlab.String(d.Get("ci_config_path").(string)),
 	}
 
 	if v, ok := d.GetOk("path"); ok {
@@ -408,6 +413,10 @@ func resourceGitlabProjectCreate(d *schema.ResourceData, meta interface{}) error
 		options.PagesAccessLevel = stringToAccessControlValue(v.(string))
 	}
 
+	if v, ok := d.GetOk("ci_config_path"); ok {
+		options.CIConfigPath = gitlab.String(v.(string))
+	}
+
 	log.Printf("[DEBUG] create gitlab project %q", *options.Name)
 
 	project, _, err := client.Projects.CreateProject(options)
@@ -687,6 +696,10 @@ func resourceGitlabProjectUpdate(d *schema.ResourceData, meta interface{}) error
 		options.BuildCoverageRegex = gitlab.String(d.Get("build_coverage_regex").(string))
 	}
 
+	if d.HasChange("ci_config_path") {
+		options.CIConfigPath = gitlab.String(d.Get("ci_config_path").(string))
+	}
+
 	if *options != (gitlab.EditProjectOptions{}) {
 		log.Printf("[DEBUG] update gitlab project %s", d.Id())
 		_, _, err := client.Projects.EditProject(d.Id(), options)

gitlab/resource_gitlab_project_test.go

@@ -48,6 +48,7 @@ func TestAccGitlabProject_basic(t *testing.T) {
 		PackagesEnabled:    true,
 		PagesAccessLevel:   gitlab.PublicAccessControl,
 		BuildCoverageRegex: "foo",
+		CIConfigPath:       ".gitlab-ci.yml@mynamespace/myproject",
 	}
 
 	defaultsMainBranch = defaults
@@ -362,6 +363,7 @@ func TestAccGitlabProject_willError(t *testing.T) {
 		PackagesEnabled:    true,
 		PagesAccessLevel:   gitlab.PublicAccessControl,
 		BuildCoverageRegex: "foo",
+		CIConfigPath:       ".gitlab-ci.yml@mynamespace/myproject",
 	}
 	willError := defaults
 	willError.TagList = []string{"notatag"}
@@ -997,6 +999,7 @@ resource "gitlab_project" "foo" {
   only_allow_merge_if_all_discussions_are_resolved = true
   pages_access_level = "public"
   build_coverage_regex = "foo"
+  ci_config_path = ".gitlab-ci.yml@mynamespace/myproject"
 }
 	`, rInt, rInt, defaultBranchStatement)
 }