app: add temp test command, note, this is mainly for testing

As tilte. This adds a 'temp-convert' command to rpm-ostree.
The main goal of this command is to convert the AH's
/usr/lib/passwd and /usr/lib/group for testing purposes.

This can be useful to find whether your output for conversion
is correct when testing on real-world entries

Makefile-rpm-ostree.am

@@ -57,7 +57,8 @@ rpm_ostree_SOURCES = src/app/main.c \
 	src/app/rpmostree-polkit-agent.c \
 	src/app/rpmostree-polkit-agent.h \
 	src/app/rpmostree-builtin-kargs.c \
-	$(NULL)
+	src/app/rpmostree-builtin-temp-convert.c \
+        $(NULL)
 
 if BUILDOPT_COMPOSE_TOOLING
 rpm_ostree_SOURCES += \

src/app/main.c

@@ -89,6 +89,9 @@ static RpmOstreeCommand commands[] = {
   { "refresh-md", 0,
     "Generate rpm repo metadata",
     rpmostree_builtin_refresh_md },
+  { "temp-convert", RPM_OSTREE_BUILTIN_FLAG_LOCAL_CMD,
+    "temp command to convert passwd/group conversion",
+    rpmostree_builtin_temp_convert },
   /* Legacy aliases */
   { "pkg-add", RPM_OSTREE_BUILTIN_FLAG_HIDDEN,
     NULL, rpmostree_builtin_install },

src/app/rpmostree-builtin-temp-convert.c

@@ -0,0 +1,53 @@
+#include "config.h"
+#include "libglnx.h"
+#include "rpmostree-util.h"
+#include "rpmostree-json-parsing.h"
+#include "rpmostree-passwd-util.h"
+#include "rpmostree-builtins.h"
+
+static char *opt_conversion_location;
+
+
+static GOptionEntry conversion_option_entries[] = {
+  { "conversion_dir", 0, 0, G_OPTION_ARG_STRING, &opt_conversion_location, "Directory to convert", "CONVERSION_DIR"},
+  { NULL }
+};
+
+// Temporarily take one argument --> mainly to convert the entries from /usr/lib/passwd into
+// entries into sysusers.d
+gboolean rpmostree_builtin_temp_convert (int         argc,
+                                         char      **argv,
+                                         RpmOstreeCommandInvocation *invocation,
+                                         GCancellable  *cancellable,
+                                         GError       **error)
+{
+  g_autoptr(GOptionContext) context = g_option_context_new ("");
+  if (!rpmostree_option_context_parse (context,
+                                       conversion_option_entries,
+                                       &argc, &argv,
+                                       invocation,
+                                       cancellable,
+                                       NULL, NULL, NULL, NULL, NULL, error))
+    return FALSE;
+  g_print("Hi, this is a test\n");
+
+  /* Test the output for conversion, right now we can already convert the content into one string conten. The next step would just be to write a function to write sysusers entries to a new place */
+  const char* passwd_content = glnx_file_get_contents_utf8_at (AT_FDCWD, "/usr/lib/passwd", NULL, cancellable, error);
+  const char* group_content = glnx_file_get_contents_utf8_at (AT_FDCWD, "/usr/lib/group", NULL, cancellable, error);
+
+  g_print ("%s\n", passwd_content);
+  g_print ("%s\n", group_content);
+  // g_autoptr(GPtrArray) converted_ents =
+  g_autoptr(GPtrArray) passwd_ents = rpmostree_passwd_data2passwdents (passwd_content);
+  g_autoptr(GPtrArray) group_ents = rpmostree_passwd_data2groupents (group_content);
+  g_autoptr(GPtrArray) sysusers_entries = NULL;
+  rpmostree_passwdents2sysusers (passwd_ents, &sysusers_entries, error);
+  rpmostree_groupents2sysusers (group_ents, &sysusers_entries, error);
+
+  g_autofree char* sysuser_converted_content = NULL;
+  rpmostree_passwd_sysusers2char (sysusers_entries, &sysuser_converted_content, error);
+
+  g_print("%s", sysuser_converted_content);
+
+  return TRUE;
+}

src/app/rpmostree-builtins.h

@@ -50,6 +50,7 @@ BUILTINPROTO(uninstall);
 BUILTINPROTO(override);
 BUILTINPROTO(start_daemon);
 BUILTINPROTO(ex);
+BUILTINPROTO(temp_convert);
 
 #undef BUILTINPROTO