1 files changed, 134 insertions, 0 deletions
diff --git a/gitTag.query.go b/gitTag.query.go
new file mode 100644
index 0000000..8c288e4
--- /dev/null
+++ b/gitTag.query.go
@@ -0,0 +1,134 @@
+package gitpb
+
+// runs git, parses output
+// types faster than you can
+
+import (
+	"errors"
+	"path/filepath"
+	"strings"
+
+	"go.wit.com/log"
+)
+
+func (repo *Repo) GetLastTag() string {
+	cmd := []string{"git", "rev-list", "--tags", "--max-count=1"}
+	result := repo.RunQuiet(cmd)
+	log.Info("getLastTagVersion()", result.Stdout)
+
+	if len(result.Stdout) != 1 {
+		log.Log(GITPBWARN, "git LastTag() error:", result.Stdout)
+		return ""
+	}
+
+	hash := result.Stdout[0]
+
+	cmd = []string{"git", "describe", "--tags", "--always", hash}
+	result = repo.RunQuiet(cmd)
+
+	if len(result.Stdout) != 1 {
+		log.Log(GITPBWARN, "git LastTag() error:", result.Stdout)
+		return ""
+	}
+
+	return result.Stdout[0]
+}
+
+func (repo *Repo) GitMasterVersion() string {
+	v, err := repo.gitVersionByName("master")
+	/*
+		count := repo.LenGitTags()
+		log.Info(repo.GoPath, "tag count", count)
+		repo.UpdateGitTags()
+		count = repo.LenGitTags()
+		log.Info(repo.GoPath, "tag count", count)
+	*/
+
+	if err == nil {
+		return v
+	} else {
+		log.Log(GITPBWARN, "gitpb.GitMasterVersion() error:", err)
+		return ""
+	}
+}
+
+func (repo *Repo) GitDevelVersion() string {
+	v, err := repo.gitVersionByName("devel")
+	if err == nil {
+		return v
+	} else {
+		log.Log(GITPBWARN, "gitpb.GitDevelVersion() error:", err)
+		return ""
+	}
+}
+
+func (repo *Repo) GitUserVersion() string {
+	v, err := repo.gitVersionByName("jcarr")
+	if err == nil {
+		return v
+	} else {
+		log.Log(GITPBWARN, "gitpb.GitUserVersion() error:", err)
+		return ""
+	}
+}
+
+func (repo *Repo) gitVersionByName(name string) (string, error) {
+	name = strings.TrimSpace(name)
+
+	if name == "" {
+		// git will return the current tag
+		r := repo.RunQuiet([]string{"git", "describe", "--tags", "--always"})
+		output := strings.Join(r.Stdout, "\n")
+		if r.Error != nil {
+			log.Log(GITPBWARN, "gitDescribeByName() output might have worked anyway:", output)
+			log.Log(GITPBWARN, "gitDescribeByName() not in a git repo?", r.Error, repo.GoPath)
+			return "", r.Error
+		}
+		return strings.TrimSpace(output), nil
+	}
+	if ! repo.IsBranch(name) {
+		// tag does not exist
+		log.Log(GITPBWARN, "LocalTagExists()", name, "did not exist")
+		return "", errors.New("gitDescribeByName() git fatal: Not a valid object name: " + name)
+	}
+	cmd := []string{"git", "describe", "--tags", "--always", name}
+	result := repo.RunQuiet(cmd)
+	output := strings.Join(result.Stdout, "\n")
+	if result.Error != nil {
+		log.Log(GITPBWARN, "cmd =", cmd)
+		log.Log(GITPBWARN, "err =", result.Error)
+		log.Log(GITPBWARN, "output (might have worked with error?) =", output)
+		log.Log(GITPBWARN, "not in a git repo or bad tag?", repo.GoPath)
+		return "", result.Error
+	}
+
+	return strings.TrimSpace(output), nil
+}
+
+// find a branch name
+// will find "master" or "devel"
+// will also find "v0.1.1"
+// or will find "patches-from-foo"
+// will return *any* match on any git branch because it doesn't
+// matter much here yet
+// eventually this will be worked out by forge in some future code that hasn't been made yet
+func (repo *Repo) IsBranch(findname string) bool {
+	loop := repo.Tags.All()
+	for loop.Scan() {
+		t := loop.Next()
+		// log.Info("LocalTagExists() tag:", t.Refname)
+
+		tagname := t.Refname
+		if strings.HasPrefix(tagname, "refs/remotes") {
+			continue
+		}
+		path, filename := filepath.Split(tagname)
+		log.Log(GITPB, "gitpb.IsBranch() tag:", path, filename, "from", repo.GoPath)
+		if filename == findname {
+			log.Log(GITPB, "gitpb.IsBranch() found tag:", path, filename, "from", repo.GoPath)
+			return true
+		}
+	}
+	log.Log(GITPBWARN, "did not find tag:", findname, "in", repo.GoPath)
+	return false
+}