sjansen/mecha

package config

type File interface {
    GetKey(name string) string
    RemoveKey(name string)
    SetKey(name, value string)
    Save() error
}

type Files struct {
    // Dirty Flags
    systemDirty  bool
    userDirty    bool
    projectDirty bool
    // Config Files
    System  File
    User    File
    Project File
}

func (c *Files) Save() error {
    if c.projectDirty {
        if err := c.Project.Save(); err != nil {
            return err
        }
    }
    if c.userDirty {
        if err := c.User.Save(); err != nil {
            return err
        }
    }
    if c.systemDirty {
        if err := c.System.Save(); err != nil {
            return err
        }
    }
    return nil
}

func (c *Files) GetPinned() string {
    return c.Project.GetKey("core.version")
}

func (c *Files) SetPinned(version string) (before, after string) {
    before = c.Project.GetKey("core.version")
    if before == version {
        after = "no change"
    } else {
        if version == "" {
            after = "not pinned"
            c.Project.RemoveKey("core.version")
        } else {
            after = version
            c.Project.SetKey("core.version", version)
        }
        c.projectDirty = true
    }
    if before == "" {
        before = "not pinned"
    }
    return
}