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| Original file line number | Diff line number | Diff line change |
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| # time | ||
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| hash defines hash primitives for starlark | ||
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| ## Functions | ||
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| #### `md5(string) string` | ||
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| returns md5 hash of a string | ||
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| #### `sha1(string) string` | ||
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| returns sha1 hash of a string | ||
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| #### `sha256(string) string` | ||
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| returns sha256 hash of a string |
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| Original file line number | Diff line number | Diff line change |
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| /*Package hash defines hash primitives for starlark. | ||
| outline: | ||
| hash defines hash primitives for starlark. | ||
| path: hash | ||
| functions: | ||
| md5(string) string | ||
| returns an md5 hash for a string | ||
| sha1(string) string | ||
| returns an sha1 hash for a string | ||
| sha256(string) string | ||
| returns an sha256 hash for a string | ||
| */ | ||
| package hash |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,56 @@ | ||
| package hash | ||
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| import ( | ||
| "crypto/md5" | ||
| "crypto/sha1" | ||
| "crypto/sha256" | ||
| "fmt" | ||
| "hash" | ||
| "sync" | ||
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| "go.starlark.net/starlark" | ||
| "go.starlark.net/starlarkstruct" | ||
| ) | ||
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| // ModuleName defines the expected name for this Module when used | ||
| // in starlark's load() function, eg: load('hash.star', 'hash') | ||
| const ModuleName = "hash.star" | ||
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| var ( | ||
| once sync.Once | ||
| hashModule starlark.StringDict | ||
| hashError error | ||
| ) | ||
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| // LoadModule loads the time module. | ||
| // It is concurrency-safe and idempotent | ||
| func LoadModule() (starlark.StringDict, error) { | ||
| once.Do(func() { | ||
| hashModule = starlark.StringDict{ | ||
| "hash": &starlarkstruct.Module{ | ||
| Name: "hash", | ||
| Members: starlark.StringDict{ | ||
| "md5": starlark.NewBuiltin("hash.md5", fnHash(md5.New)), | ||
| "sha1": starlark.NewBuiltin("hash.sha1", fnHash(sha1.New)), | ||
| "sha256": starlark.NewBuiltin("hash.sha256", fnHash(sha256.New)), | ||
| }, | ||
| }, | ||
| } | ||
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| }) | ||
| return hashModule, hashError | ||
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| } | ||
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| func fnHash(hash func() hash.Hash) func(*starlark.Thread, *starlark.Builtin, starlark.Tuple, []starlark.Tuple) (starlark.Value, error) { | ||
| return func(t *starlark.Thread, fn *starlark.Builtin, args starlark.Tuple, kwargs []starlark.Tuple) (starlark.Value, error) { | ||
| var s starlark.String | ||
| if err := starlark.UnpackPositionalArgs(fn.Name(), args, kwargs, 1, &s); err != nil { | ||
| return nil, err | ||
| } | ||
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| h := hash() | ||
| h.Write([]byte(string(s))) | ||
| return starlark.String(fmt.Sprintf("%x", h.Sum(nil))), nil | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,22 @@ | ||
| package hash | ||
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| import ( | ||
| "testing" | ||
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| "github.com/qri-io/starlib/testdata" | ||
| "go.starlark.net/resolve" | ||
| "go.starlark.net/starlark" | ||
| "go.starlark.net/starlarktest" | ||
| ) | ||
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| func TestFile(t *testing.T) { | ||
| resolve.AllowFloat = true | ||
| thread := &starlark.Thread{Load: testdata.NewLoader(LoadModule, ModuleName)} | ||
| starlarktest.SetReporter(thread, t) | ||
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| // Execute test file | ||
| _, err := starlark.ExecFile(thread, "testdata/test.star", nil, nil) | ||
| if err != nil { | ||
| t.Error(err) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,9 @@ | ||
| """ | ||
| Test data for hash module | ||
| """ | ||
| load('hash.star', 'hash') | ||
| load('assert.star', 'assert') | ||
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| assert.eq(hash.md5("helloworld"), "fc5e038d38a57032085441e7fe7010b0") | ||
| assert.eq(hash.sha1("helloworld"), "6adfb183a4a2c94a2f92dab5ade762a47889a5a1") | ||
| assert.eq(hash.sha256("helloworld"), "936a185caaa266bb9cbe981e9e05cb78cd732b0b3280eb944412bb6f8f8f07af") |
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