(command.CommandList children: [ (C {<readonly>} {<Id.Lit_VarLike 'GCS_BUCKET='> (DQ <'gs://kythe-builds'>)}) (command.ShFunction name: usage body: (BraceGroup children: [ (command.Simple words: [ {<echo>} { (DQ <'usage: '> (command_sub left_token: <Id.Left_DollarParen '$('> child: (C {<basename>} {(DQ ($ Id.VSub_Number '$0'))}) ) <' cache-dir'> ) } ] redirects: [(redir op:<Id.Redir_GreatAnd '>&'> loc:(redir_loc.Fd fd:1) arg:{<2>})] do_fork: T ) ] ) ) (command.If arms: [ (if_arm cond: (condition.Shell commands: [ (command.Sentence child: (command.DBracket expr: (bool_expr.Binary op_id: Id.BoolBinary_GlobNEqual left: {($ Id.VSub_Pound '$#')} right: {<1>} ) ) terminator: <Id.Op_Semi _> ) ] ) action: [(C {<usage>}) (command.ControlFlow token:<Id.ControlFlow_Exit exit> arg_word:{<1>})] spids: [78 91] ) ] ) (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:CACHE) op: assign_op.Equal rhs: { (DQ (command_sub left_token: <Id.Left_DollarParen '$('> child: (C {<readlink>} {<-m>} {(DQ ($ Id.VSub_Number '$1'))}) ) ) } spids: [104] ) ] ) (C {<echo>} {(DQ <'Cache Root: '> ($ Id.VSub_DollarName '$CACHE'))}) (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:REPO) op: assign_op.Equal rhs: { (DQ (command_sub left_token: <Id.Left_DollarParen '$('> child: (C {<readlink>} {<-e>} { (DQ (command_sub left_token: <Id.Left_DollarParen '$('> child: (C {<dirname>} {(DQ ($ Id.VSub_Number '$0'))}) ) <'/..'> ) } ) ) ) } spids: [125] ) ] ) (C {<echo>} {(DQ <'Repository Root: '> ($ Id.VSub_DollarName '$REPO'))}) (C {<.>} {<'tools/modules/versions.sh'>}) (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:NAME) op: assign_op.Equal rhs: {(DQ <llvm-> (${ Id.VSub_Name FULL_SHA))} spids: [157] ) ] ) (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:LLVM) op: assign_op.Equal rhs: {(DQ ($ Id.VSub_DollarName '$CACHE') <'/'> ($ Id.VSub_DollarName '$NAME'))} spids: [165] ) ] ) (command.If arms: [ (if_arm cond: (condition.Shell commands: [ (command.Sentence child: (command.DBracket expr: (bool_expr.LogicalNot child: (bool_expr.Unary op_id: Id.BoolUnary_d child: {(DQ ($ Id.VSub_DollarName '$LLVM'))} ) ) ) terminator: <Id.Op_Semi _> ) ] ) action: [ (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:TMP) op: assign_op.Equal rhs: { (DQ (command_sub left_token: <Id.Left_DollarParen '$('> child: (C {<mktemp>} {<-d>}) ) ) } spids: [191] ) ] ) (C {<trap>} {(DQ <'rm -rf \''> ($ Id.VSub_DollarName '$TMP') <'\''>)} {<EXIT>} {<ERR>} {<INT>}) (C {<cd>} {(DQ ($ Id.VSub_DollarName '$TMP'))}) (C {<gsutil>} {<cp>} {(DQ (${ Id.VSub_Name GCS_BUCKET) <'/'> ($ Id.VSub_DollarName '$NAME') <.tar.gz>)} {<.>} ) (C {<tar>} {<xzf>} {(DQ ($ Id.VSub_DollarName '$NAME') <.tar.gz>)}) (C {<mkdir>} {<-p>} { (DQ (command_sub left_token: <Id.Left_DollarParen '$('> child: (C {<dirname>} {(DQ ($ Id.VSub_DollarName '$LLVM'))}) ) ) } ) (C {<mv>} {<llvm>} {(DQ ($ Id.VSub_DollarName '$LLVM'))}) ] spids: [173 188] ) ] else_action: [ (C {<echo>} {(DQ <'Reusing cached LLVM version at '> ($ Id.VSub_DollarName '$LLVM'))}) ] ) (C {<rm>} {<-rf>} {(DQ ($ Id.VSub_DollarName '$REPO')) <'/third_party/llvm/llvm'>}) (C {<cp>} {<-r>} {(DQ ($ Id.VSub_DollarName '$LLVM'))} {(DQ ($ Id.VSub_DollarName '$REPO')) <'/third_party/llvm/llvm'>} ) ] )