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Add support for finding Terraform by git ref
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,84 @@ | ||
| package tfinstall | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "io/ioutil" | ||
| "log" | ||
| "os/exec" | ||
| "runtime" | ||
|
|
||
| "github.com/go-git/go-git/v5" | ||
| "github.com/go-git/go-git/v5/plumbing" | ||
| ) | ||
|
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| type GitRefOption struct { | ||
| installDir string | ||
| repoURL string | ||
| ref string | ||
| } | ||
|
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| var _ ExecPathFinder = &GitRefOption{} | ||
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| func GitRef(ref, repo, installDir string) *GitRefOption { | ||
| return &GitRefOption{ | ||
| installDir: installDir, | ||
| repoURL: repo, | ||
| ref: ref, | ||
| } | ||
| } | ||
|
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| func (opt *GitRefOption) ExecPath(ctx context.Context) (string, error) { | ||
| installDir, err := ensureInstallDir(opt.installDir) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
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| ref := plumbing.ReferenceName(opt.ref) | ||
| if opt.ref == "" { | ||
| ref = plumbing.ReferenceName("refs/heads/master") | ||
| } | ||
|
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| repoURL := opt.repoURL | ||
| if repoURL == "" { | ||
| repoURL = "https://github.com/hashicorp/terraform.git" | ||
| } | ||
|
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||
| _, err = git.PlainClone(installDir, false, &git.CloneOptions{ | ||
| URL: repoURL, | ||
| ReferenceName: ref, | ||
|
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| Depth: 1, | ||
| Tags: git.NoTags, | ||
| }) | ||
| if err != nil { | ||
| return "", fmt.Errorf("unable to clone %q: %w", repoURL, err) | ||
| } | ||
|
|
||
| var binName string | ||
| { | ||
| // TODO: maybe there is a better way to make sure this filename is available? | ||
| // I guess we could locate it in a different dir, or nest the git underneath | ||
| // the root tmp dir, etc. | ||
| binPattern := "terraform" | ||
| if runtime.GOOS == "windows" { | ||
| binPattern = "terraform*.exe" | ||
| } | ||
| binFile, err := ioutil.TempFile(installDir, binPattern) | ||
| if err != nil { | ||
| return "", fmt.Errorf("unable to create bin file: %w", err) | ||
| } | ||
| binName = binFile.Name() | ||
| binFile.Close() | ||
| } | ||
|
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| cmd := exec.CommandContext(ctx, "go", "build", "-mod", "vendor", "-o", binName) | ||
| cmd.Dir = installDir | ||
| out, err := cmd.CombinedOutput() | ||
| log.Print(string(out)) | ||
| if err != nil { | ||
| return "", fmt.Errorf("unable to build Terraform: %w\n%s", err, out) | ||
| } | ||
|
|
||
| return binName, nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,65 @@ | ||
| package tfinstall | ||
|
|
||
| import ( | ||
| "context" | ||
| "io/ioutil" | ||
| "os" | ||
| "os/exec" | ||
| "strings" | ||
| "testing" | ||
| ) | ||
|
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||
| func TestGitRef(t *testing.T) { | ||
| cmd := exec.Command("go", "version") | ||
| out, err := cmd.CombinedOutput() | ||
| if err != nil { | ||
| t.Fatalf("error with Go installation: %s\n%s", err, string(out)) | ||
| } | ||
| t.Logf("go version\n%s", string(out)) | ||
|
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| for n, c := range map[string]struct { | ||
| expectedVersion string | ||
| ref string | ||
| }{ | ||
| "branch v0.12": {"Terraform v0.12", "refs/heads/v0.12"}, | ||
| "tag v0.12.29": {"Terraform v0.12.29", "refs/tags/v0.12.29"}, | ||
| //"commit 83630a7": {"Terraform v0.12.29", "83630a7003fb8b868a3bf940798326634c3c6acc"}, | ||
| "empty": {"Terraform v0.14.", ""}, // should pull master, which is currently 0.13 | ||
| } { | ||
| c := c | ||
| t.Run(n, func(t *testing.T) { | ||
| // these are really long running due to the compilation, run them in parallel | ||
| t.Parallel() | ||
|
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| ctx := context.Background() | ||
|
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| // hacking this tmpdir to local dir due to circle perms, should be env var | ||
| tmpDir, err := ioutil.TempDir("", "tfinstall-test") | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| t.Cleanup(func() { | ||
| os.RemoveAll(tmpDir) | ||
| }) | ||
|
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| t.Logf("finding / building ref %q...", c.ref) | ||
| tfpath, err := Find(ctx, GitRef(c.ref, "", tmpDir)) | ||
| if err != nil { | ||
| t.Fatalf("%T %s", err, err) | ||
| } | ||
|
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| t.Logf("testing version cmd...") | ||
| cmd := exec.Command(tfpath, "version") | ||
|
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| out, err := cmd.Output() | ||
| if err != nil { | ||
| t.Fatalf("%s\n\n%s", err, out) | ||
| } | ||
|
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| actual := string(out) | ||
| if !strings.Contains(actual, c.expectedVersion) { | ||
| t.Fatalf("ran terraform version, expected %s, but got %s", c.expectedVersion, actual) | ||
| } | ||
| }) | ||
| } | ||
| } |