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package pkglint
import "gopkg.in/check.v1"
func (s *Suite) Test_MkShWalker_Walk(c *check.C) {
pathFor := map[string]bool{}
outputPathFor := func(kinds ...string) {
for key := range pathFor {
pathFor[key] = false
}
for _, kind := range kinds {
pathFor[kind] = true
}
}
test := func(program string, output ...string) {
list, err := parseShellProgram(dummyLine, program)
if !c.Check(err, check.IsNil) || !c.Check(list, check.NotNil) {
return
}
walker := NewMkShWalker()
var commands []string
add := func(kind string, format string, args ...interface{}) {
if format != "" && !contains(format, "%") {
panic(format)
}
detail := sprintf(format, args...)
commands = append(commands, sprintf("%16s %s", kind, detail))
if pathFor[kind] {
commands = append(commands, sprintf("%16s %s", "Path", walker.Path()))
}
}
callback := &walker.Callback
callback.List = func(list *MkShList) { add("List", "with %d andOrs", len(list.AndOrs)) }
callback.AndOr = func(andor *MkShAndOr) { add("AndOr", "with %d pipelines", len(andor.Pipes)) }
callback.Pipeline = func(pipeline *MkShPipeline) { add("Pipeline", "with %d commands", len(pipeline.Cmds)) }
callback.Command = func(command *MkShCommand) { add("Command", "") }
callback.SimpleCommand = func(command *MkShSimpleCommand) {
add("SimpleCommand", "%s", NewStrCommand(command).String())
}
callback.CompoundCommand = func(command *MkShCompoundCommand) { add("CompoundCommand", "") }
callback.Case = func(caseClause *MkShCase) { add("Case", "with %d items", len(caseClause.Cases)) }
callback.CaseItem = func(caseItem *MkShCaseItem) { add("CaseItem", "with %d patterns", len(caseItem.Patterns)) }
callback.FunctionDefinition = func(funcdef *MkShFunctionDefinition) { add("FunctionDef", "for %s", funcdef.Name) }
callback.If = func(ifClause *MkShIf) { add("If", "with %d then-branches", len(ifClause.Conds)) }
callback.Loop = func(loop *MkShLoop) { add("Loop", "") }
callback.Words = func(words []*ShToken) { add("Words", "with %d words", len(words)) }
callback.Word = func(word *ShToken) { add("Word", "%s", word.MkText) }
callback.Redirects = func(redirects []*MkShRedirection) { add("Redirects", "with %d redirects", len(redirects)) }
callback.Redirect = func(redirect *MkShRedirection) { add("Redirect", "%s", redirect.Op) }
callback.For = func(forClause *MkShFor) { add("For", "variable %s", forClause.Varname) }
callback.Varname = func(varname string) { add("Varname", "%s", varname) }
walker.Walk(list)
// TODO: Provide a reduced AST that omits all "AndOr with 1 pipelines", etc.
// It should look like this:
//
// List with 5 andOrs (or generic Commands?)
// If with 1 then-branch(es)
// SimpleCommand condition
// SimpleCommand action
// Case with 1 item(s)
// ...
c.Check(commands, deepEquals, output)
// After parsing, there is not a single level of indentation,
// therefore even Parent(0) returns nil.
//
// This ensures that the w.push/w.pop calls are balanced.
c.Check(walker.Parent(0), equals, nil)
}
outputPathFor("SimpleCommand")
test(""+
"if condition; then action; else case selector in pattern) case-item-action ;; esac; fi; "+
"set -e; "+
"cd ${WRKSRC}/locale; "+
"for lang in *.po; do "+
" [ \"$${lang}\" = \"wxstd.po\" ] && continue; "+
" ${TOOLS_PATH.msgfmt} -c -o \"$${lang%.po}.mo\" \"$${lang}\"; "+
"done; "+
"while :; do fun() { :; } 1>&2; done",
" List with 5 andOrs",
" AndOr with 1 pipelines",
" Pipeline with 1 commands",
" Command ",
" CompoundCommand ",
" If with 1 then-branches",
" List with 1 andOrs",
" AndOr with 1 pipelines",
" Pipeline with 1 commands",
" Command ",
" SimpleCommand condition",
" Path List.AndOr[0].Pipeline[0].Command[0].CompoundCommand.If.List[0].AndOr[0].Pipeline[0].Command[0].SimpleCommand",
" Word condition",
" List with 1 andOrs",
" AndOr with 1 pipelines",
" Pipeline with 1 commands",
" Command ",
" SimpleCommand action",
" Path List.AndOr[0].Pipeline[0].Command[0].CompoundCommand.If.List[1].AndOr[0].Pipeline[0].Command[0].SimpleCommand",
" Word action",
" List with 1 andOrs",
" AndOr with 1 pipelines",
" Pipeline with 1 commands",
" Command ",
" CompoundCommand ",
" Case with 1 items",
" Word selector",
" CaseItem with 1 patterns",
" Words with 1 words",
" Word pattern",
" List with 1 andOrs",
" AndOr with 1 pipelines",
" Pipeline with 1 commands",
" Command ",
" SimpleCommand case-item-action",
" Path List.AndOr[0].Pipeline[0].Command[0].CompoundCommand.If."+
"List[2].AndOr[0].Pipeline[0].Command[0].CompoundCommand.Case.CaseItem[0]."+
"List.AndOr[0].Pipeline[0].Command[0].SimpleCommand",
" Word case-item-action",
" AndOr with 1 pipelines",
" Pipeline with 1 commands",
" Command ",
" SimpleCommand set -e",
" Path List.AndOr[1].Pipeline[0].Command[0].SimpleCommand",
" Word set",
" Words with 1 words",
" Word -e",
" AndOr with 1 pipelines",
" Pipeline with 1 commands",
" Command ",
" SimpleCommand cd ${WRKSRC}/locale",
" Path List.AndOr[2].Pipeline[0].Command[0].SimpleCommand",
" Word cd",
" Words with 1 words",
" Word ${WRKSRC}/locale",
" AndOr with 1 pipelines",
" Pipeline with 1 commands",
" Command ",
" CompoundCommand ",
" For variable lang",
" Varname lang",
" Words with 1 words",
" Word *.po",
" List with 2 andOrs",
" AndOr with 2 pipelines",
" Pipeline with 1 commands",
" Command ",
" SimpleCommand [ \"$${lang}\" = \"wxstd.po\" ]",
" Path List.AndOr[3].Pipeline[0].Command[0].CompoundCommand.For.List.AndOr[0].Pipeline[0].Command[0].SimpleCommand",
" Word [",
" Words with 4 words",
" Word \"$${lang}\"",
" Word =",
" Word \"wxstd.po\"",
" Word ]",
" Pipeline with 1 commands",
" Command ",
" SimpleCommand continue",
" Path List.AndOr[3].Pipeline[0].Command[0].CompoundCommand.For.List.AndOr[0].Pipeline[1].Command[0].SimpleCommand",
" Word continue",
" AndOr with 1 pipelines",
" Pipeline with 1 commands",
" Command ",
" SimpleCommand ${TOOLS_PATH.msgfmt} -c -o \"$${lang%.po}.mo\" \"$${lang}\"",
" Path List.AndOr[3].Pipeline[0].Command[0].CompoundCommand.For.List.AndOr[1].Pipeline[0].Command[0].SimpleCommand",
" Word ${TOOLS_PATH.msgfmt}",
" Words with 4 words",
" Word -c",
" Word -o",
" Word \"$${lang%.po}.mo\"",
" Word \"$${lang}\"",
" AndOr with 1 pipelines",
" Pipeline with 1 commands",
" Command ",
" CompoundCommand ",
" Loop ",
" List with 1 andOrs",
" AndOr with 1 pipelines",
" Pipeline with 1 commands",
" Command ",
" SimpleCommand :",
" Path List.AndOr[4].Pipeline[0].Command[0].CompoundCommand.Loop.List[0].AndOr[0].Pipeline[0].Command[0].SimpleCommand",
" Word :",
" List with 1 andOrs",
" AndOr with 1 pipelines",
" Pipeline with 1 commands",
" Command ",
" FunctionDef for fun",
" CompoundCommand ",
" List with 1 andOrs",
" AndOr with 1 pipelines",
" Pipeline with 1 commands",
" Command ",
" SimpleCommand :",
" Path List.AndOr[4].Pipeline[0].Command[0].CompoundCommand.Loop."+
"List[1].AndOr[0].Pipeline[0].Command[0].FunctionDefinition.CompoundCommand."+
"List.AndOr[0].Pipeline[0].Command[0].SimpleCommand",
" Word :",
" Redirects with 1 redirects",
" Redirect >&",
" Word 2")
outputPathFor("Redirects", "Redirect", "Word")
test(""+
"echo 'hello world' 1>/dev/null 2>&1 0</dev/random",
" List with 1 andOrs",
" AndOr with 1 pipelines",
" Pipeline with 1 commands",
" Command ",
" SimpleCommand echo 'hello world'",
" Word echo",
" Path List.AndOr[0].Pipeline[0].Command[0].SimpleCommand.ShToken",
" Words with 1 words",
" Word 'hello world'",
" Path List.AndOr[0].Pipeline[0].Command[0].SimpleCommand.[]ShToken[1].ShToken[0]",
" Redirects with 3 redirects",
" Path List.AndOr[0].Pipeline[0].Command[0].SimpleCommand.[]MkShRedirection",
" Redirect >",
" Path List.AndOr[0].Pipeline[0].Command[0].SimpleCommand.[]MkShRedirection.Redirection[0]",
" Word /dev/null",
" Path List.AndOr[0].Pipeline[0].Command[0].SimpleCommand.[]MkShRedirection.Redirection[0].ShToken[0]",
" Redirect >&",
" Path List.AndOr[0].Pipeline[0].Command[0].SimpleCommand.[]MkShRedirection.Redirection[1]",
" Word 1",
" Path List.AndOr[0].Pipeline[0].Command[0].SimpleCommand.[]MkShRedirection.Redirection[1].ShToken[1]",
" Redirect <",
" Path List.AndOr[0].Pipeline[0].Command[0].SimpleCommand.[]MkShRedirection.Redirection[2]",
" Word /dev/random",
" Path List.AndOr[0].Pipeline[0].Command[0].SimpleCommand.[]MkShRedirection.Redirection[2].ShToken[2]")
}
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