feat: add optional environment variable LOGPROXY_CHMOD to change logf… (

#32)

…iles mode

README.md

@@ -125,6 +125,7 @@ Optional environment variables to override defaults :
     LOGPROXY_ROTATION_TIME
     LOGPROXY_ROTATION_SUFFIX
     LOGPROXY_ROTATED_FILES
+    LOGPROXY_CHMOD
 
 Example for rotation-size option :
 - If log_proxy is run with the option --rotation-size on command line, rotation-size will take the provided value
@@ -155,7 +156,7 @@ Application Options:
   -S, --rotation-suffix     strftime based suffix to append to rotated log files (default: content of environment variable LOGPROXY_ROTATION_SUFFIX or .%%Y%%m%%d%%H%%M%%S)
   -d, --log-directory       directory to store log files (default: content of environment variable LOGPROXY_LOG_DIRECTORY or current directory), directory is created if missing
   -n, --rotated-files       maximum number of rotated files to keep including main one (0 => no cleaning, default: content of environment variable LOGPROXY_ROTATED_FILES or 5)
-  -c, --chmod               if set, chmod the logfile to this octal value (0700 for example)
+  -c, --chmod               if set, chmod the logfile to this value, "0700" for example (default : content of environment variable LOGPROXY_CHMOD or NULL)
   -o, --chown               if set, try (if you don't have sufficient privileges, it will fail silently) to change the owner of the logfile to the given user value
   -g, --chgrp               if set, try (if you don't have sufficient privileges, it will fail silently) to change the group of the logfile to the given group value
   -m, --use-locks           use locks to append to main log file (useful if several process writes to the same file)

src/options.h

@@ -79,6 +79,13 @@ void set_default_values_from_env()
             log_directory = g_get_current_dir();
         }
     }
+
+    if ( chmod ==  NULL ) {
+        env_val = g_getenv("LOGPROXY_CHMOD");
+        if ( env_val != NULL ) {
+            chmod = (gchar *)env_val;
+        }
+    }
 }
 
 static GOptionEntry entries[] = {
@@ -87,7 +94,7 @@ static GOptionEntry entries[] = {
     { "rotation-suffix", 'S', 0, G_OPTION_ARG_STRING, &rotation_suffix, "strftime based suffix to append to rotated log files (default: content of environment variable LOGPROXY_ROTATION_SUFFIX or .%%Y%%m%%d%%H%%M%%S)", NULL },
     { "log-directory", 'd', 0, G_OPTION_ARG_STRING, &log_directory, "directory to store log files (default: content of environment variable LOGPROXY_LOG_DIRECTORY or current directory), directory is created if missing", NULL },
     { "rotated-files", 'n', 0, G_OPTION_ARG_INT, &rotated_files, "maximum number of rotated files to keep including main one (0 => no cleaning, default: content of environment variable LOGPROXY_ROTATED_FILES or 5)", NULL },
-    { "chmod", 'c', 0, G_OPTION_ARG_STRING, &chmod_str, "if set, chmod the logfile to this octal value (0700 for example)", NULL },
+    { "chmod", 'c', 0, G_OPTION_ARG_STRING, &chmod_str, "if set, chmod the logfile to this value, '0700' for example (default: content of environment variable LOGPROXY_CHMOD or NULL)", NULL },
     { "chown", 'o', 0, G_OPTION_ARG_STRING, &chown_str, "if set, try (if you don't have sufficient privileges, it will fail silently) to change the owner of the logfile to the given user value", NULL },
     { "chgrp", 'g', 0, G_OPTION_ARG_STRING, &chgrp_str, "if set, try (if you don't have sufficient privileges, it will fail silently) to change the group of the logfile to the given group value", NULL },
     { "use-locks", 'm', 0, G_OPTION_ARG_NONE, &use_locks, "use locks to append to main log file (useful if several process writes to the same file)", NULL },