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.dockerignore, internal/build: Read git information directly from file (#15458)

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* .dockerignore, internal/build: Read git information directly from file

This commit changes the way of retrieving git commit and branch for build
environment from running git command to reading git files directly.

This commit also adds required git files into Docker build context.

fixes: #15346

* .dockerignore: workaround for including some files in .git
This commit is contained in:
Arba Sasmoyo 2017-11-13 03:00:18 +07:00 committed by Péter Szilágyi
parent 86f6568f66
commit f47adc9ea8
3 changed files with 21 additions and 5 deletions
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3
.dockerignore
View File

@ -1,4 +1,7 @@
**/.git
/.git
!/.git/HEAD
!/.git/refs/heads
**/*_test.go
build/_workspace

13
internal/build/env.go
View File

@ -82,18 +82,21 @@ func Env() Environment {
// LocalEnv returns build environment metadata gathered from git.
func LocalEnv() Environment {
env := applyEnvFlags(Environment{Name: "local", Repo: "ethereum/go-ethereum"})
if _, err := os.Stat(".git"); err != nil {
head := ReadGitFile("HEAD")
if splits := strings.Split(head, " "); len(splits) == 2 {
head = splits[1]
} else {
return env
}
if env.Commit == "" {
env.Commit = RunGit("rev-parse", "HEAD")
env.Commit = ReadGitFile(head)
}
if env.Branch == "" {
if b := RunGit("rev-parse", "--abbrev-ref", "HEAD"); b != "HEAD" {
env.Branch = b
if head != "HEAD" {
env.Branch = strings.TrimLeft(head, "refs/heads/")
}
}
if env.Tag == "" {
if info, err := os.Stat(".git/objects"); err == nil && info.IsDir() && env.Tag == "" {
env.Tag = firstLine(RunGit("tag", "-l", "--points-at", "HEAD"))
}
return env

10
internal/build/util.go
View File

@ -25,6 +25,7 @@ import (
"log"
"os"
"os/exec"
"path"
"path/filepath"
"runtime"
"strings"
@ -88,6 +89,15 @@ func RunGit(args ...string) string {
return strings.TrimSpace(stdout.String())
}
// ReadGitFile returns content of file in .git directory.
func ReadGitFile(file string) string {
content, err := ioutil.ReadFile(path.Join(".git", file))
if err != nil {
return ""
}
return strings.TrimSpace(string(content))
}
// Render renders the given template file into outputFile.
func Render(templateFile, outputFile string, outputPerm os.FileMode, x interface{}) {
tpl := template.Must(template.ParseFiles(templateFile))