Fix android.Expand and ninja escaping
RuleBuilder does its own ninja escaping, so values that will be
passed to RuleBuilder must not be pre-escaped. Add a new
android.ExpandNinjaEscaped method that explicitly handles ninja
escaping. Some of the expansion functions return ninja values
(like "${in}") that need to stay unescaped, so add a bool return
value to the expansion function in android.ExpandNinjaEscaped.
Test: expand_test.go
Change-Id: Ib03d4db38b5e3e5bffbd87acf14f55e276a53d04
diff --git a/android/expand_test.go b/android/expand_test.go
index 128de8a..12179ed 100644
--- a/android/expand_test.go
+++ b/android/expand_test.go
@@ -20,88 +20,111 @@
)
var vars = map[string]string{
- "var1": "abc",
- "var2": "",
- "var3": "def",
- "💩": "😃",
+ "var1": "abc",
+ "var2": "",
+ "var3": "def",
+ "💩": "😃",
+ "escape": "${in}",
}
-func expander(s string) (string, error) {
+func expander(s string) (string, bool, error) {
if val, ok := vars[s]; ok {
- return val, nil
+ return val, s == "escape", nil
} else {
- return "", fmt.Errorf("unknown variable %q", s)
+ return "", false, fmt.Errorf("unknown variable %q", s)
}
}
var expandTestCases = []struct {
- in string
- out string
- err bool
+ in string
+ out string
+ out_escaped string
+ err bool
}{
{
- in: "$(var1)",
- out: "abc",
+ in: "$(var1)",
+ out: "abc",
+ out_escaped: "abc",
},
{
- in: "$( var1 )",
- out: "abc",
+ in: "$( var1 )",
+ out: "abc",
+ out_escaped: "abc",
},
{
- in: "def$(var1)",
- out: "defabc",
+ in: "def$(var1)",
+ out: "defabc",
+ out_escaped: "defabc",
},
{
- in: "$(var1)def",
- out: "abcdef",
+ in: "$(var1)def",
+ out: "abcdef",
+ out_escaped: "abcdef",
},
{
- in: "def$(var1)def",
- out: "defabcdef",
+ in: "def$(var1)def",
+ out: "defabcdef",
+ out_escaped: "defabcdef",
},
{
- in: "$(var2)",
- out: "",
+ in: "$(var2)",
+ out: "",
+ out_escaped: "",
},
{
- in: "def$(var2)",
- out: "def",
+ in: "def$(var2)",
+ out: "def",
+ out_escaped: "def",
},
{
- in: "$(var2)def",
- out: "def",
+ in: "$(var2)def",
+ out: "def",
+ out_escaped: "def",
},
{
- in: "def$(var2)def",
- out: "defdef",
+ in: "def$(var2)def",
+ out: "defdef",
+ out_escaped: "defdef",
},
{
- in: "$(var1)$(var3)",
- out: "abcdef",
+ in: "$(var1)$(var3)",
+ out: "abcdef",
+ out_escaped: "abcdef",
},
{
- in: "$(var1)g$(var3)",
- out: "abcgdef",
+ in: "$(var1)g$(var3)",
+ out: "abcgdef",
+ out_escaped: "abcgdef",
},
{
- in: "$$",
- out: "$$",
+ in: "$$",
+ out: "$",
+ out_escaped: "$$",
},
{
- in: "$$(var1)",
- out: "$$(var1)",
+ in: "$$(var1)",
+ out: "$(var1)",
+ out_escaped: "$$(var1)",
},
{
- in: "$$$(var1)",
- out: "$$abc",
+ in: "$$$(var1)",
+ out: "$abc",
+ out_escaped: "$$abc",
},
{
- in: "$(var1)$$",
- out: "abc$$",
+ in: "$(var1)$$",
+ out: "abc$",
+ out_escaped: "abc$$",
},
{
- in: "$(💩)",
- out: "😃",
+ in: "$(💩)",
+ out: "😃",
+ out_escaped: "😃",
+ },
+ {
+ in: "$$a$(escape)$$b",
+ out: "$a${in}$b",
+ out_escaped: "$$a${in}$$b",
},
// Errors
@@ -141,7 +164,10 @@
func TestExpand(t *testing.T) {
for _, test := range expandTestCases {
- got, err := Expand(test.in, expander)
+ got, err := Expand(test.in, func(s string) (string, error) {
+ s, _, err := expander(s)
+ return s, err
+ })
if err != nil && !test.err {
t.Errorf("%q: unexpected error %s", test.in, err.Error())
} else if err == nil && test.err {
@@ -151,3 +177,16 @@
}
}
}
+
+func TestExpandNinjaEscaped(t *testing.T) {
+ for _, test := range expandTestCases {
+ got, err := ExpandNinjaEscaped(test.in, expander)
+ if err != nil && !test.err {
+ t.Errorf("%q: unexpected error %s", test.in, err.Error())
+ } else if err == nil && test.err {
+ t.Errorf("%q: expected error, got %q", test.in, got)
+ } else if !test.err && got != test.out_escaped {
+ t.Errorf("%q: expected %q, got %q", test.in, test.out, got)
+ }
+ }
+}