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11049: Go & Python handle hyphen in sdk gen (cgstrings take 2) r=iwahbe a=iwahbe <!--- Thanks so much for your contribution! If this is your first time contributing, please ensure that you have read the [CONTRIBUTING](https://github.com/pulumi/pulumi/blob/master/CONTRIBUTING.md) documentation. --> # Description <!--- Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. --> Fixes pulumi/crd2pulumi#43 ## Checklist <!--- Please provide details if the checkbox below is to be left unchecked. --> - [X] I have added tests that prove my fix is effective or that my feature works <!--- User-facing changes require a CHANGELOG entry. --> - [X] I have run `make changelog` and committed the `changelog/pending/<file>` documenting my change <!-- If the change(s) in this PR is a modification of an existing call to the Pulumi Service, then the service should honor older versions of the CLI where this change would not exist. You must then bump the API version in /pkg/backend/httpstate/client/api.go, as well as add it to the service. --> - [ ] Yes, there are changes in this PR that warrants bumping the Pulumi Service API version <!-- `@Pulumi` employees: If yes, you must submit corresponding changes in the service repo. --> Co-authored-by: Ian Wahbe <ian@wahbe.com>
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changelog/pending/20221017--sdkgen-go-python--handle-hyphenated-names.yaml
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,4 @@ | ||
| changes: | ||
| - type: fix | ||
| scope: sdkgen/go,python | ||
| description: Handle hypheneated names in go and python |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| // package cgstrings has various string processing functions that are useful during code generation. | ||
| package cgstrings | ||
|
|
||
| import ( | ||
| "strings" | ||
| "unicode" | ||
| ) | ||
|
|
||
| // Unhyphenate removes all hyphens from s, then uppercasing the letter following each hyphen. | ||
| // For example, "abc-def-ghi" becomes "abcDefGhi". | ||
| func Unhyphenate(str string) string { | ||
| return ModifyStringAroundDelimeter(str, "-", UppercaseFirst) | ||
| } | ||
|
|
||
| // Camel converts s to camelCase. | ||
| func Camel(s string) string { | ||
| if s == "" { | ||
| return "" | ||
| } | ||
| s = Unhyphenate(s) | ||
| runes := []rune(s) | ||
| res := make([]rune, 0, len(runes)) | ||
| for i, r := range runes { | ||
| if unicode.IsLower(r) { | ||
| res = append(res, runes[i:]...) | ||
| break | ||
| } | ||
| res = append(res, unicode.ToLower(r)) | ||
| } | ||
| return string(res) | ||
| } | ||
|
|
||
| // UppercaseFirst uppercases the first letter of s. | ||
| // E.g. "abc" -> "Abc" | ||
| func UppercaseFirst(s string) string { | ||
| if s == "" { | ||
| return "" | ||
| } | ||
| runes := []rune(s) | ||
| runes[0] = unicode.ToUpper(runes[0]) | ||
| return string(runes) | ||
| } | ||
|
|
||
| func ModifyStringAroundDelimeter(str, delim string, modifyNext func(next string) string) string { | ||
| if delim == "" { | ||
| return str | ||
| } | ||
| i := strings.Index(str, delim) | ||
| if i < 0 { | ||
| return str | ||
| } | ||
| nextIdx := i + len(delim) | ||
| if nextIdx >= len(str) { | ||
| // Nothing left after the delimeter, it's at the end of the string. | ||
| return str[:len(str)-len(delim)] | ||
| } | ||
| prev := str[:nextIdx-1] | ||
| next := str[nextIdx:] | ||
| if next != "" { | ||
| next = modifyNext(next) | ||
| } | ||
| return prev + ModifyStringAroundDelimeter(next, delim, modifyNext) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| package cgstrings | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "testing" | ||
|
|
||
| "github.com/stretchr/testify/assert" | ||
| ) | ||
|
|
||
| func TestCamel(t *testing.T) { | ||
| t.Parallel() | ||
| assert := assert.New(t) | ||
|
|
||
| assert.Equal("", Camel("")) | ||
| assert.Equal("plugh", Camel("plugh")) | ||
| assert.Equal("waldoThudFred", Camel("WaldoThudFred")) | ||
| assert.Equal("graultBaz", Camel("Grault-Baz")) | ||
| assert.Equal("graultBaz", Camel("grault-baz")) | ||
| assert.Equal("graultBaz", Camel("graultBaz")) | ||
| assert.Equal("grault_Baz", Camel("Grault_Baz")) | ||
| assert.Equal("graultBaz", Camel("Grault-baz")) | ||
| } | ||
|
|
||
| func TestUnhyphenate(t *testing.T) { | ||
| t.Parallel() | ||
| testcases := []struct { | ||
| input, expected string | ||
| }{ | ||
| {"", ""}, | ||
| {"waldo", "waldo"}, | ||
| {"waldo-thud-fred", "waldoThudFred"}, | ||
| {"waldo-Thud-Fred", "waldoThudFred"}, | ||
| {"waldo-Thud-Fred-", "waldoThudFred"}, | ||
| {"-waldo-Thud-Fred", "WaldoThudFred"}, | ||
| {"waldoThudFred", "waldoThudFred"}, | ||
| {"WaldoThudFred", "WaldoThudFred"}, | ||
| } | ||
| for _, tc := range testcases { | ||
| tc := tc | ||
| t.Run(fmt.Sprintf("Subtest:%q", tc.input), func(t *testing.T) { | ||
| t.Parallel() | ||
| assert := assert.New(t) | ||
| assert.Equal(tc.expected, Unhyphenate(tc.input)) | ||
| }) | ||
| } | ||
| } |
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