parse .git/config

gitTag.proto

@@ -4,6 +4,25 @@ package gitpb;
 
 import "google/protobuf/timestamp.proto"; // Import the well-known type for Timestamp
 
+message GitRemote {					// `autogenpb:nomutex`
+	string url              = 1;
+	string fetch            = 2;
+}
+
+message GitBranch {					// `autogenpb:nomutex`
+	string remote           = 1;
+	string merge            = 2;
+}
+
+// readGitConfig reads and parses the .git/config file
+message GitConfig {					// `autogenpb:nomutex`
+	map<string, string>       core            = 1; // map[origin] = "https:/git.wit.org/gui/gadgets"
+	map<string, GitRemote>    remotes         = 2; // map[origin] = "https:/git.wit.org/gui/gadgets"
+	map<string, GitBranch>    branches        = 3; // map[guimaster] = origin guimaster
+	map<string, string>       submodules      = 4;
+	map<string, string>       hashes          = 5;
+	map<string, string>       versions        = 6;
+}
 
 message GitTag {					// `autogenpb:nomutex`
 	string	refname 			= 1;	// `autogenpb:unique` `autogenpb:sort` 	// tag name. treated as unique

reload.go

@@ -28,6 +28,12 @@ func (repo *Repo) Reload() error {
 	repo.CheckDirty()
 	repo.setRepoState()
 
+	if repo.GitConfig == nil {
+		if err := repo.updateGitConfig(); err != nil {
+			return err
+		}
+	}
+
 	// LastUpdate should always be the newest time
 	repo.Times.LastUpdate = timestamppb.New(time.Now())
 	return nil

reloadGitConfig.go

@@ -0,0 +1,176 @@
+package gitpb
+
+import (
+	"bufio"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"go.wit.com/log"
+)
+
+// does processing on the go.mod and go.sum files
+
+func (repo *Repo) updateGitConfig() error {
+	if repo == nil {
+		return fmt.Errorf("gitpb.updateGitConfig() repo == nil")
+	}
+	if repo.GitConfig == nil {
+		repo.GitConfig = new(GitConfig)
+	}
+
+	repo.GitConfig.Core = make(map[string]string)
+	repo.GitConfig.Remotes = make(map[string]*GitRemote)
+	repo.GitConfig.Branches = make(map[string]*GitBranch)
+	repo.GitConfig.Submodules = make(map[string]string)
+	repo.GitConfig.Versions = make(map[string]string)
+	repo.GitConfig.Hashes = make(map[string]string)
+	return repo.readGitConfig()
+}
+
+// readGitConfig reads and parses the .git/config file
+func (repo *Repo) readGitConfig() error {
+	filename := filepath.Join(repo.GetFullPath(), ".git/config")
+	file, err := os.Open(filename)
+	defer file.Close()
+	if err != nil {
+		return err
+	}
+
+	var currentSection string = ""
+	var currentName string = ""
+
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		line := strings.TrimSpace(scanner.Text())
+
+		// Skip empty lines and comments
+		if line == "" || strings.HasPrefix(line, "#") || strings.HasPrefix(line, ";") {
+			continue
+		}
+
+		// Check for section headers
+		if strings.HasPrefix(line, "[") && strings.HasSuffix(line, "]") {
+			line = strings.Trim(line, "[]")
+			parts := strings.Split(line, " ")
+			currentSection = parts[0]
+
+			if len(parts) == 2 {
+				line = strings.Trim(line, "[]")
+				currentName = strings.Trim(parts[1], "\"")
+			}
+			continue
+		}
+
+		partsNew := strings.SplitN(line, "=", 2)
+		if len(partsNew) != 2 {
+			log.Log(WARN, "error on config section:", currentSection, "line:", line)
+		}
+
+		key := strings.TrimSpace(partsNew[0])
+		key = strings.TrimSuffix(key, "\"")
+
+		value := strings.TrimSpace(partsNew[1])
+		value = strings.TrimSuffix(value, "\"")
+
+		switch currentSection {
+		case "core":
+			repo.GitConfig.Core[key] = value
+		case "gui":
+			// don't really need gui stuff right now
+		case "pull":
+			// don't store git config pull settings here
+			// git config probably has 'rebase = false'
+		case "remote":
+			test, ok := repo.GitConfig.Remotes[currentName]
+			if !ok {
+				test = new(GitRemote)
+				repo.GitConfig.Remotes[currentName] = test
+			}
+			log.Log(INFO, "switch currentSection", currentSection, currentName)
+			switch key {
+			case "url":
+				if test.Url == value {
+					continue
+				}
+				if test.Url == "" {
+					test.Url = value
+					continue
+				}
+				log.Log(INFO, "error url mismatch", test.Url, value)
+			case "fetch":
+				if test.Fetch == value {
+					continue
+				}
+				if test.Fetch == "" {
+					test.Fetch = value
+					continue
+				}
+				log.Log(INFO, "error fetch mismatch", test.Fetch, value)
+			default:
+				log.Log(INFO, "unknown remote:", line)
+			}
+		case "branch":
+			test, ok := repo.GitConfig.Branches[currentName]
+			if !ok {
+				test = new(GitBranch)
+				repo.GitConfig.Branches[currentName] = test
+				repo.processBranch(currentName)
+			}
+			switch key {
+			case "remote":
+				repo.GitConfig.Branches[currentName].Remote = value
+			case "merge":
+				repo.GitConfig.Branches[currentName].Merge = value
+			default:
+				log.Log(INFO, "error unknown remote:", currentSection, currentName, key, value)
+				log.Log(INFO, "unknown branch:", line)
+			}
+		case "submodule":
+			// test, ok := rs.gitConfig.submodules[currentName]
+			switch key {
+			case "active":
+				// probably 'true' or 'false'
+			case "url":
+				repo.GitConfig.Submodules[currentName] = value
+			default:
+				log.Log(WARN, "unknown submodule line:", line)
+			}
+		default:
+			log.Log(WARN, "unknown line:", line)
+		}
+	}
+
+	if err := scanner.Err(); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (repo *Repo) processBranch(branch string) {
+	log.Log(INFO, "    ", branch)
+	hash, ok := repo.GitConfig.Hashes[branch]
+	filename := filepath.Join(repo.GetFullPath() + "/.git/refs/heads/" + branch)
+	log.Log(INFO, "      hash: need to open", filename)
+
+	data, err := ioutil.ReadFile(filename)
+	if err != nil {
+		log.Log(WARN, "hash: read failed", filename)
+		return
+	}
+	newhash := strings.TrimSpace(string(data))
+	log.Log(INFO, "      hash:", newhash)
+	repo.GitConfig.Hashes[branch] = newhash
+	if ok {
+		if hash != newhash {
+			log.Log(WARN, "hash changed", hash)
+		}
+	}
+
+	name, _ := repo.gitDescribeByHash(newhash)
+	repo.GitConfig.Versions[newhash] = name
+	log.Log(INFO, "      hash: version", name)
+}

reloadMtime.go

@@ -119,6 +119,31 @@ func (repo *Repo) changedHead() bool {
 	return true
 }
 
+// check the mtime of the .git/config file
+func (repo *Repo) changedConfig() bool {
+	fname := ".git/config"
+	fileTime := repo.Mtime(fname)
+	if fileTime == nil {
+		// .git/config doesn't exist. something is wrong!
+		log.Info("gitpb .git/config is missing", repo.GetGoPath())
+		return false
+	}
+	mtime := timestamppb.New(*fileTime)
+	pbtime := repo.Times.MtimeConfig
+	if pbtime == nil { // this can happen?
+		repo.Times.MtimeConfig = mtime
+		return true
+	}
+
+	if (pbtime.Seconds == mtime.Seconds) && (pbtime.Nanos == mtime.Nanos) {
+		return false
+	}
+	dur := mtime.AsTime().Sub(pbtime.AsTime())
+	repo.StateChange = fmt.Sprintf("%s changed %s", fname, shell.FormatDuration(dur))
+	repo.Times.MtimeConfig = mtime
+	return true
+}
+
 func (repo *Repo) changedIndex() bool {
 	fname := ".git/index"
 	fileTime := repo.Mtime(fname)
@@ -154,6 +179,9 @@ func (repo *Repo) reloadMtimes() bool {
 	if repo.changedIndex() {
 		changed = true
 	}
+	if repo.changedConfig() {
+		changed = true
+	}
 	if repo.changedDir() {
 		// changed = true
 	}
@@ -171,6 +199,9 @@ func (repo *Repo) DidRepoChange() bool {
 	if repo.didFileChange(".git/index", repo.Times.MtimeIndex) {
 		return true
 	}
+	if repo.didFileChange(".git/config", repo.Times.MtimeConfig) {
+		return true
+	}
 	if repo.didFileChange(".git", repo.Times.MtimeDir) {
 		// todo: do something with CheckDirty()
 		// return true

reloadTags.go

@@ -135,7 +135,13 @@ func (repo *Repo) NewestTag() *GitTag {
 	return nil
 }
 
+// this should just do is.Exists(".git/refs/heads/findname")
 func (repo *Repo) LocalTagExists(findname string) bool {
+	fname := filepath.Join(".git/refs/heads", findname)
+	if repo.Exists(fname) {
+		return true
+	}
+	/*
 		loop := repo.Tags.SortByRefname()
 		for loop.Scan() {
 			ref := loop.Next()
@@ -143,13 +149,14 @@ func (repo *Repo) LocalTagExists(findname string) bool {
 			if strings.HasPrefix(ref.Refname, "refs/remotes") {
 				continue
 			}
-		_, tagname := filepath.Split(ref.Refname)
+			tagname := filepath.Base(ref.Refname)
 			// log.Info("tag:", path, tagname, "from", repo.GoPath)
 			if tagname == findname {
 				// log.Info("found tag:", path, tagname, "from", repo.GoPath)
 				return true
 			}
 		}
+	*/
 	return false
 }
 

repo.proto

@@ -35,6 +35,7 @@ message Repo {						// `autogenpb:marshal` `autogenpb:2nomutex`
 	repeated string	dirtyList		= 22;		// store the list from git status --porcelain
 	string	state           		= 23; 		// status or state. useful for building tooling
 	GitTag	currentTag           		= 24; 		// used to examine repo branches
+	GitConfig  gitConfig           		= 25; 		// protobuf of the current .git/config
 }
 
 message Repos {				// `autogenpb:marshal` `autogenpb:sort` `autogenpb:2nomutex`
@@ -54,6 +55,7 @@ message GitTimes {		// `autogenpb:2nomutex`
 	google.protobuf.Timestamp mtimeFetch    = 7;		// mtime for ./git/FETCH_HEAD // last time 'git fetch' or 'git pull' was run on current branch?
 	google.protobuf.Timestamp lastGoDep     = 8;		// mtime for last go.sum scan
 	google.protobuf.Timestamp newestCommit  = 9;		// when the newest commit was
+	google.protobuf.Timestamp mtimeConfig   = 10;		// mtime for the .git/config file
 }
 
 // this is probably better. think about moving to this instead