Class: LockFile Private
Overview
This class is part of a private API. This class may only be used in the Homebrew/brew repository. Third parties should avoid using this class if possible, as it may be removed or changed without warning.
A lock file.
Direct Known Subclasses
Instance Attribute Summary collapse
-
#path ⇒ Object
readonly
private
Instance Method Summary collapse
-
#initialize(name) ⇒ LockFile
constructor
private
A new instance of LockFile.
-
#lock ⇒ Object
private
-
#unlock ⇒ Object
private
-
#with_lock ⇒ Object
private
Constructor Details
#initialize(name) ⇒ LockFile
This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.
Returns a new instance of LockFile.
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# File 'lock_file.rb', line 12 def initialize(name) @name = name.to_s @path = HOMEBREW_LOCKS/"#{@name}.lock" @lockfile = nil end |
Instance Attribute Details
#path ⇒ Object (readonly)
This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.
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# File 'lock_file.rb', line 10 def path @path end |
Instance Method Details
#lock ⇒ Object
This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.
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# File 'lock_file.rb', line 18 def lock @path.parent.mkpath create_lockfile return if @lockfile.flock(File::LOCK_EX | File::LOCK_NB) raise OperationInProgressError, @name end |
#unlock ⇒ Object
This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.
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# File 'lock_file.rb', line 26 def unlock return if @lockfile.nil? || @lockfile.closed? @lockfile.flock(File::LOCK_UN) @lockfile.close end |
#with_lock ⇒ Object
This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.
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# File 'lock_file.rb', line 33 def with_lock lock yield ensure unlock end |