Add debug logs to app logs discovery

Author: andy-tier1app

internal/agent/ondemand/ondemand.go

@@ -432,6 +432,7 @@ Ignored errors: %v
 
 		paths := config.AppLogs{}
 		for _, f := range discoveredLogFiles {
+			logger.Debug().Msgf("OnDemand FullCapture: discovered log file: %s", string(f))
 			isGCLog := false
 			for _, fileName := range globFiles {
 				// To exclude discovered gc log such f as /tmp/buggyapp-%p-%t.log

internal/capture/app_logs_auto_discovery.go

@@ -7,6 +7,7 @@ import (
 	"regexp"
 	"runtime"
 	"unicode"
+	"yc-agent/internal/logger"
 )
 
 // logPatterns contains precompiled regex patterns so they are compiled once at startup rather than each function call.
@@ -34,6 +35,8 @@ func DiscoverOpenedLogFilesByProcess(pid int) ([]string, error) {
 	}
 
 	for _, filePath := range openedFiles {
+		logger.Debug().Msgf("DiscoverOpenedLogFilesByProcess: opened file by process (pid=%d): %s", pid, string(filePath))
+
 		fileBaseName := filepath.Base(filePath)
 		if matchLogPattern(fileBaseName) {
 			last1000Text, err := getLastNBytes(filePath, 1000)

internal/capture/applog.go

@@ -36,6 +36,8 @@ func (al *AppLog) Run() (Result, error) {
 	pathStrings := make([]string, len(al.Paths))
 	for i, path := range al.Paths {
 		pathStrings[i] = string(path)
+
+		logger.Debug().Msgf("AppLog: glob path: %s", string(path))
 	}
 
 	// Expand all paths (files, directories, globs) to individual files
@@ -50,6 +52,8 @@ func (al *AppLog) Run() (Result, error) {
 
 	// Process each expanded file path
 	for _, filePath := range expandedPaths {
+		logger.Debug().Msgf("AppLog: expanded path: %s", string(filePath))
+
 		r, err := al.CaptureSingleAppLog(filePath)
 		results = append(results, r)
 		errs = append(errs, err)