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Viewing file:     version_buildvcs_git_gpg.txt (2.31 KB)      -rw-r--r--

# This test checks that VCS information is stamped into Go binaries even when
# the current commit is signed and the use has configured git to display commit
# signatures.

[!exec:git] skip
[!exec:gpg] skip
[short] skip
env GOBIN=$GOPATH/bin
env GNUPGHOME=$WORK/.gpupg
mkdir $GNUPGHOME
chmod 0700 $GNUPGHOME

# Create GPG key
exec gpg --batch --passphrase '' --quick-generate-key gopher@golang.org
exec gpg --list-secret-keys --with-colons gopher@golang.org
cp stdout keyinfo.txt
go run extract_key_id.go keyinfo.txt
cp stdout keyid.txt

# Initialize repo
cd repo/
exec git init
exec git config user.email gopher@golang.org
exec git config user.name 'J.R. Gopher'
exec git config --add log.showSignature true
go run ../configure_signing_key.go ../keyid.txt

# Create signed commit
cd a
exec git add -A
exec git commit -m 'initial commit' --gpg-sign
exec git log

# Verify commit signature does not interfere with versioning
go install
go version -m $GOBIN/a
stdout '^\tbuild\tvcs\.revision='
stdout '^\tbuild\tvcs\.time='
stdout '^\tbuild\tvcs\.modified=false$'

-- repo/README --
Far out in the uncharted backwaters of the unfashionable end of the western
spiral arm of the Galaxy lies a small, unregarded yellow sun.
-- repo/a/go.mod --
module example.com/a

go 1.18
-- repo/a/a.go --
package main

func main() {}

-- extract_key_id.go --
package main

import "fmt"
import "io/ioutil"
import "os"
import "strings"

func main() {
    err := run(os.Args[1])
    if err != nil {
        panic(err)
    }
}

func run(keyInfoFilePath string) error {
    contents, err := ioutil.ReadFile(keyInfoFilePath)
    if err != nil {
        return err
    }
    lines := strings.Split(string(contents), "\n")
    for _, line := range lines {
        fields := strings.Split(line, ":")
        if fields[0] == "sec" {
            fmt.Print(fields[4])
            return nil
        }
    }
    return fmt.Errorf("key ID not found in: %s", keyInfoFilePath)
}

-- configure_signing_key.go --
package main

import "io/ioutil"
import "os"
import "os/exec"

func main() {
    err := run(os.Args[1])
    if err != nil {
        panic(err)
    }
}

func run(keyIdFilePath string) error {
    keyId, err := ioutil.ReadFile(keyIdFilePath)
    if err != nil {
        return err
    }
    gitCmd := exec.Command("git", "config", "user.signingKey", string(keyId))
    return gitCmd.Run()
}