Always use the default workspace directory when building commands con…

…text

When pre_workflow_hooks is being used to generate atlantis.yaml
and projects are set with specific workspaces different than "default",
a different directory is created for each project-workspace pair,
but all those that are not on the "default" workspace will
not have an atlantis.yaml file at their root.

This change ensures that when atlantis is building the projects commands
for either:
- a project-specific plan, triggered via (atlantis plan -d foo -w bar)
- a project-specific apply, triggered vi (atlantis apply -d foo -w bar)
- or applies for all the plans it can find (atlantis apply)
it uses the default workspace to find the atlantis.yaml config.

server/events/project_command_builder.go

@@ -292,7 +292,7 @@ func (p *DefaultProjectCommandBuilder) buildProjectPlanCommand(ctx *CommandConte
 	defer unlockFn()
 
 	ctx.Log.Debug("cloning repository")
-	repoDir, _, err := p.WorkingDir.Clone(ctx.Log, ctx.HeadRepo, ctx.Pull, workspace)
+	_, _, err = p.WorkingDir.Clone(ctx.Log, ctx.HeadRepo, ctx.Pull, workspace)
 	if err != nil {
 		return pcc, err
 	}
@@ -302,12 +302,19 @@ func (p *DefaultProjectCommandBuilder) buildProjectPlanCommand(ctx *CommandConte
 		repoRelDir = cmd.RepoRelDir
 	}
 
+	// use the default repository workspace because it is the only one guaranteed to have an atlantis.yaml,
+	// other workspaces will not have the file if they are using pre_workflow_hooks to generate it dynamically
+	defaultRepoDir, err := p.WorkingDir.GetWorkingDir(ctx.Pull.BaseRepo, ctx.Pull, DefaultWorkspace)
+	if err != nil {
+		return pcc, err
+	}
+
 	return p.buildProjectCommandCtx(
 		ctx,
 		models.PlanCommand,
 		cmd.ProjectName,
 		cmd.Flags,
-		repoDir,
+		defaultRepoDir,
 		repoRelDir,
 		workspace,
 		cmd.Verbose,
@@ -387,9 +394,16 @@ func (p *DefaultProjectCommandBuilder) buildAllProjectCommands(ctx *CommandConte
 		return nil, err
 	}
 
+	// use the default repository workspace because it is the only one guaranteed to have an atlantis.yaml,
+	// other workspaces will not have the file if they are using pre_workflow_hooks to generate it dynamically
+	defaultRepoDir, err := p.WorkingDir.GetWorkingDir(ctx.Pull.BaseRepo, ctx.Pull, DefaultWorkspace)
+	if err != nil {
+		return nil, err
+	}
+
 	var cmds []models.ProjectCommandContext
 	for _, plan := range plans {
-		commentCmds, err := p.buildProjectCommandCtx(ctx, commentCmd.CommandName(), plan.ProjectName, commentCmd.Flags, plan.RepoDir, plan.RepoRelDir, plan.Workspace, commentCmd.Verbose)
+		commentCmds, err := p.buildProjectCommandCtx(ctx, commentCmd.CommandName(), plan.ProjectName, commentCmd.Flags, defaultRepoDir, plan.RepoRelDir, plan.Workspace, commentCmd.Verbose)
 		if err != nil {
 			return nil, errors.Wrapf(err, "building command for dir %q", plan.RepoRelDir)
 		}
@@ -413,7 +427,9 @@ func (p *DefaultProjectCommandBuilder) buildProjectApplyCommand(ctx *CommandCont
 	}
 	defer unlockFn()
 
-	repoDir, err := p.WorkingDir.GetWorkingDir(ctx.Pull.BaseRepo, ctx.Pull, workspace)
+	// use the default repository workspace because it is the only one guaranteed to have an atlantis.yaml,
+	// other workspaces will not have the file if they are using pre_workflow_hooks to generate it dynamically
+	repoDir, err := p.WorkingDir.GetWorkingDir(ctx.Pull.BaseRepo, ctx.Pull, DefaultWorkspace)
 	if os.IsNotExist(errors.Cause(err)) {
 		return projCtx, errors.New("no working directory found–did you run plan?")
 	} else if err != nil {