chore(third_party): Remove git-appraise r/74

Not actually in use here ...

1 files changed, 0 insertions, 129 deletions

diff --git a/third_party/go/git-appraise/review/gpg/signable.go b/third_party/go/git-appraise/review/gpg/signable.go
deleted file mode 100644
index 776764c6fc10..000000000000
--- a/third_party/go/git-appraise/review/gpg/signable.go
+++ /dev/null
@@ -1,129 +0,0 @@
-// Package gpg provides an interface and an abstraction with which to sign and
-// verify review requests and comments.
-package gpg
-
-import (
-	"bytes"
-	"encoding/json"
-	"fmt"
-	"io/ioutil"
-	"os"
-	"os/exec"
-)
-
-const placeholder = "gpgsig"
-
-// Sig provides an abstraction around shelling out to GPG to sign the
-// content it's given.
-type Sig struct {
-	// Sig holds an object's content's signature.
-	Sig string `json:"signature,omitempty"`
-}
-
-// Signable is an interfaces which provides the pointer to the signable
-// object's stringified signature.
-//
-// This pointer is used by `Sign` and `Verify` to replace its contents with
-// `placeholder` or the signature itself for the purposes of signing or
-// verifying.
-type Signable interface {
-	Signature() *string
-}
-
-// Signature is `Sig`'s implementation of `Signable`. Through this function, an
-// object which needs to implement `Signable` need only embed `Sig`
-// anonymously. See, e.g., review/request.go.
-func (s *Sig) Signature() *string {
-	return &s.Sig
-}
-
-// Sign uses gpg to sign the contents of a request and deposit it into the
-// signature key of the request.
-func Sign(key string, s Signable) error {
-	// First we retrieve the pointer and write `placeholder` as its value.
-	sigPtr := s.Signature()
-	*sigPtr = placeholder
-
-	// Marshal the content and sign it.
-	content, err := json.Marshal(s)
-	if err != nil {
-		return err
-	}
-	sig, err := signContent(key, content)
-	if err != nil {
-		return err
-	}
-
-	// Write the signature as the new value at the pointer.
-	*sigPtr = sig.String()
-	return nil
-}
-
-func signContent(key string, content []byte) (*bytes.Buffer,
-	error) {
-	var stdout, stderr bytes.Buffer
-	cmd := exec.Command("gpg", "-u", key, "--detach-sign", "--armor")
-	cmd.Stdin = bytes.NewReader(content)
-	cmd.Stdout = &stdout
-	cmd.Stderr = &stderr
-	err := cmd.Run()
-	return &stdout, err
-}
-
-// Verify verifies the signatures on the request and its comments with the
-// given key.
-func Verify(s Signable) error {
-	// Retrieve the pointer.
-	sigPtr := s.Signature()
-	// Copy its contents.
-	sig := *sigPtr
-	// Overwrite the value with the placeholder.
-	*sigPtr = placeholder
-
-	defer func() { *sigPtr = sig }()
-
-	// 1. Marshal the content into JSON.
-	// 2. Write the signature and the content to temp files.
-	// 3. Use gpg to verify the signature.
-	content, err := json.Marshal(s)
-	if err != nil {
-		return err
-	}
-	sigFile, err := ioutil.TempFile("", "sig")
-	if err != nil {
-		return err
-	}
-	defer os.Remove(sigFile.Name())
-	_, err = sigFile.Write([]byte(sig))
-	if err != nil {
-		return err
-	}
-	err = sigFile.Close()
-	if err != nil {
-		return err
-	}
-
-	contentFile, err := ioutil.TempFile("", "content")
-	if err != nil {
-		return err
-	}
-	defer os.Remove(contentFile.Name())
-	_, err = contentFile.Write(content)
-	if err != nil {
-		return err
-	}
-	err = contentFile.Close()
-	if err != nil {
-		return err
-	}
-
-	var stdout, stderr bytes.Buffer
-	cmd := exec.Command("gpg", "--verify", sigFile.Name(), contentFile.Name())
-	cmd.Stdout = &stdout
-	cmd.Stderr = &stderr
-	err = cmd.Run()
-	if err != nil {
-		return fmt.Errorf("%s", stderr.String())
-	}
-	return nil
-}