imworkingon: Check if things have been released

2 files changed, 120 insertions, 5 deletions

diff --git a/cmd/generate/gitcache.go b/cmd/generate/gitcache.go
new file mode 100644
index 0000000..7caf024
--- /dev/null
+++ b/cmd/generate/gitcache.go
@@ -0,0 +1,66 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"strings"
+
+	"git.mothstuff.lol/lukeshu/eclipse/lib/gitcache"
+)
+
+var gitFetched = map[string]struct{}{}
+
+var gitCache = &gitcache.Cache{
+	Dir: ".git-cache",
+}
+
+func withGit(u string, fn func(dir string) error) error {
+	if _, ok := gitFetched[u]; !ok {
+		if err := gitCache.Fetch(os.Stderr, u); err != nil {
+			return err
+		}
+	}
+	return gitCache.WithFastClone(os.Stderr, u, fn)
+}
+
+func getGitTagThatContainsAll(gitURL string, gitHashes ...string) (string, error) {
+	if len(gitHashes) == 0 {
+		return "", nil
+	}
+	var tag string
+	err := withGit(gitURL, func(dir string) error {
+		gitHash := gitHashes[0]
+		if len(gitHashes) > 1 {
+			cmdline := append([]string{"git", "merge-base", "--independent", "--"}, gitHashes...)
+			cmd := exec.Command(cmdline[0], cmdline[1:]...)
+			cmd.Dir = dir
+			var stdout strings.Builder
+			cmd.Stdout = &stdout
+			cmd.Stderr = os.Stderr
+			if err := cmd.Run(); err != nil {
+				return err
+			}
+			gitHash = strings.TrimSpace(stdout.String())
+		}
+		cmd := exec.Command("git", "for-each-ref",
+			"--count=1",
+			"--format=%(refname:lstrip=2)",
+			"--contains="+gitHash,
+			"refs/tags/",
+		)
+		cmd.Dir = dir
+		var stdout strings.Builder
+		cmd.Stdout = &stdout
+		cmd.Stderr = os.Stderr
+		if err := cmd.Run(); err != nil {
+			return err
+		}
+		tag = strings.TrimSpace(stdout.String())
+		return nil
+	})
+	if err != nil {
+		return "", fmt.Errorf("%q: %w", gitURL, err)
+	}
+	return tag, nil
+}
diff --git a/cmd/generate/src_contribs.go b/cmd/generate/src_contribs.go
index 760b56a..f201ab5 100644
--- a/cmd/generate/src_contribs.go
+++ b/cmd/generate/src_contribs.go
@@ -102,8 +102,9 @@ func (c Contribution) fetchStatus() (string, error) {
 
 		var obj struct {
 			// State values are "open" and "closed".
-			State  string `json:"state"`
-			Merged bool   `json:"merged"`
+			State          string `json:"state"`
+			Merged         bool   `json:"merged"`
+			MergeCommitSha string `json:"merge_commit_sha"`
 		}
 		if err := httpGetJSON(urlStr, &obj); err != nil {
 			return "", err
@@ -111,7 +112,15 @@ func (c Contribution) fetchStatus() (string, error) {
 		ret := obj.State
 		if obj.Merged {
 			ret = "merged"
+			tag, err := getGitTagThatContainsAll("https://github.com/"+user+"/"+repo, obj.MergeCommitSha)
+			if err != nil {
+				return "", err
+			}
+			if tag != "" {
+				ret = "released in " + tag
+			}
 		}
+
 		return ret, nil
 	}
 	if m := reGitLabMR.FindStringSubmatch(c.URLs[0]); m != nil {
@@ -123,7 +132,9 @@ func (c Contribution) fetchStatus() (string, error) {
 
 		var obj struct {
 			// State values are "opened", "closed", "locked", and "merged".
-			State string `json:"state"`
+			State           string `json:"state"`
+			MergeCommitSha  string `json:"merge_commit_sha"`
+			SquashCommitSha string `json:"squash_commit_sha"`
 		}
 		if err := httpGetJSON(urlStr, &obj); err != nil {
 			return "", err
@@ -133,13 +144,51 @@ func (c Contribution) fetchStatus() (string, error) {
 		if ret == "opened" {
 			ret = "open"
 		}
+
+		if ret == "merged" {
+			var mergeCommit string
+			if obj.MergeCommitSha != "" {
+				mergeCommit = obj.MergeCommitSha
+			}
+			if obj.SquashCommitSha != "" {
+				mergeCommit = obj.SquashCommitSha
+			}
+			if mergeCommit != "" {
+				tag, err := getGitTagThatContainsAll("https://"+authority+"/"+projectID+".git", mergeCommit)
+				if err != nil {
+					return "", err
+				}
+				if tag != "" {
+					ret = "released in " + tag
+				}
+			}
+		}
+
 		return ret, nil
 	}
 	if len(c.URLs) > 1 {
+		var gitURL string
+		var gitCommits []string
 		for _, u := range c.URLs[1:] {
-			if reGitHubCommit.MatchString(u) {
-				return "merged", nil
+			if m := reGitHubCommit.FindStringSubmatch(u); m != nil {
+				user := m[1]
+				repo := m[2]
+				hash := m[3]
+
+				gitURL = "https://github.com/" + user + "/" + repo
+				gitCommits = append(gitCommits, hash)
+			}
+		}
+		if len(gitCommits) > 0 {
+			ret := "merged"
+			tag, err := getGitTagThatContainsAll(gitURL, gitCommits...)
+			if err != nil {
+				return "", err
+			}
+			if tag != "" {
+				ret = "released in " + tag
 			}
+			return ret, nil
 		}
 	}
 	return "", fmt.Errorf("idk how to get status for %q", c.URLs[0])