(List
  (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('hgDir', {[ComSub (Com {[LIT_CHARS dirname]} {[VarSub 0]})] [LIT_CHARS /..]})])
  (If
    (DBracket {B? LOGICAL_BINARY_AND {B1 UNARY_FILE_x {[LIT_CHARS /usr/bin/hg]}} {B1 UNARY_FILE_d {[VarSub hgDir] [LIT_CHARS /.hg]}}})
    (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('rev', {[ComSub (Com {[LIT_CHARS hg]} {[LIT_CHARS id]} {[LIT_CHARS -i]})]})])
    (Com {[LIT_DBRACKET_LIKE "["]} {[LIT_CHARS -f]} {[VarSub hgDir] [LIT_CHARS /.hg_archival.txt]} {[LIT_DBRACKET_LIKE "]"]}    )
    (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('rev', {[ComSub (Pipeline (Com {[LIT_CHARS grep]} {[LIT_CHARS node]} {[VarSub hgDir] [LIT_CHARS /.hg_archival.txt]}) (Com {[LIT_CHARS cut]} {[LIT_CHARS -d] [SQ <LIT_CHARS " ">]} {[LIT_CHARS -f]} {[LIT_CHARS 2]}) (Com {[LIT_CHARS head]} {[LIT_CHARS -c]} {[LIT_CHARS 12]}) )]})])
    (ElseTrue)
    (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('rev', {[SQ ]})])
  )
  (Com {[LIT_CHARS echo]} {[DQ [VarSub rev]]}  )
)