repart: resolve $TMP specifiers too

poettering · poettering · commit b3e22322b6ba · 2021-05-26T17:20:36.000+02:00
This might be useful for CopyFiles=, to reference some subdir of $TMP in
a generic way. This allows us to use the new common
system_and_tmp_specifier_table[].
diff --git a/man/repart.d.xml b/man/repart.d.xml
@@ -622,7 +622,9 @@
   <refsect1>
     <title>Specifiers</title>
 
-    <para>Specifiers may be used in the <varname>Label=</varname> setting. The following expansions are understood:</para>
+    <para>Specifiers may be used in the <varname>Label=</varname>, <varname>CopyBlocks=</varname>,
+    <varname>CopyFiles=</varname>, <varname>MakeDirectories=</varname> settings. The following expansions are
+    understood:</para>
       <table class='specifiers'>
         <title>Specifiers available</title>
         <tgroup cols='3' align='left' colsep='1' rowsep='1'>
@@ -649,6 +651,8 @@
             <xi:include href="standard-specifiers.xml" xpointer="v"/>
             <xi:include href="standard-specifiers.xml" xpointer="w"/>
             <xi:include href="standard-specifiers.xml" xpointer="W"/>
+            <xi:include href="standard-specifiers.xml" xpointer="T"/>
+            <xi:include href="standard-specifiers.xml" xpointer="V"/>
             <xi:include href="standard-specifiers.xml" xpointer="percent"/>
           </tbody>
         </tgroup>
diff --git a/src/partition/repart.c b/src/partition/repart.c
@@ -949,11 +949,6 @@ static int config_parse_type(
         return 0;
 }
 
-static const Specifier specifier_table[] = {
-        COMMON_SYSTEM_SPECIFIERS,
-        {}
-};
-
 static int config_parse_label(
                 const char *unit,
                 const char *filename,
@@ -976,7 +971,7 @@ static int config_parse_label(
         /* Nota bene: the empty label is a totally valid one. Let's hence not follow our usual rule of
          * assigning the empty string to reset to default here, but really accept it as label to set. */
 
-        r = specifier_printf(rvalue, GPT_LABEL_MAX, specifier_table, NULL, &resolved);
+        r = specifier_printf(rvalue, GPT_LABEL_MAX, system_and_tmp_specifier_table, NULL, &resolved);
         if (r < 0) {
                 log_syntax(unit, LOG_WARNING, filename, line, r,
                            "Failed to expand specifiers in Label=, ignoring: %s", rvalue);
@@ -1141,7 +1136,7 @@ static int config_parse_copy_files(
         if (!isempty(p))
                 return log_syntax(unit, LOG_ERR, filename, line, SYNTHETIC_ERRNO(EINVAL), "Too many arguments: %s", rvalue);
 
-        r = specifier_printf(source, PATH_MAX-1, specifier_table, NULL, &resolved_source);
+        r = specifier_printf(source, PATH_MAX-1, system_and_tmp_specifier_table, NULL, &resolved_source);
         if (r < 0) {
                 log_syntax(unit, LOG_WARNING, filename, line, r,
                            "Failed to expand specifiers in CopyFiles= source, ignoring: %s", rvalue);
@@ -1152,7 +1147,7 @@ static int config_parse_copy_files(
         if (r < 0)
                 return 0;
 
-        r = specifier_printf(target, PATH_MAX-1, specifier_table, NULL, &resolved_target);
+        r = specifier_printf(target, PATH_MAX-1, system_and_tmp_specifier_table, NULL, &resolved_target);
         if (r < 0) {
                 log_syntax(unit, LOG_WARNING, filename, line, r,
                            "Failed to expand specifiers in CopyFiles= target, ignoring: %s", resolved_target);
@@ -1201,7 +1196,7 @@ static int config_parse_copy_blocks(
                 return 0;
         }
 
-        r = specifier_printf(rvalue, PATH_MAX-1, specifier_table, NULL, &d);
+        r = specifier_printf(rvalue, PATH_MAX-1, system_and_tmp_specifier_table, NULL, &d);
         if (r < 0) {
                 log_syntax(unit, LOG_WARNING, filename, line, r,
                            "Failed to expand specifiers in CopyBlocks= source path, ignoring: %s", rvalue);
@@ -1249,7 +1244,7 @@ static int config_parse_make_dirs(
                 if (r == 0)
                         return 0;
 
-                r = specifier_printf(word, PATH_MAX-1, specifier_table, NULL, &d);
+                r = specifier_printf(word, PATH_MAX-1, system_and_tmp_specifier_table, NULL, &d);
                 if (r < 0) {
                         log_syntax(unit, LOG_WARNING, filename, line, r,
                                    "Failed to expand specifiers in MakeDirectories= parameter, ignoring: %s", word);
