fixes to edify and updater script
A few more changes to edify:
- fix write_raw_image(); my last change neglected to close the write
context, so the written image was corrupt.
- each expression tracks the span of the source code from which it
was compiled, so that assert()'s error message can include the
source of the expression that failed.
- the 'cookie' argument to each Function is replaced with a State
object, which contains the cookie, the source script (for use with
the above spans), and the current error message (replacing the
global variables that were used for this purpose).
- in the recovery image, a new command "ui_print" can be sent back
through the command pipe to cause text to appear on the screen.
Add a new ui_print() function to print things from scripts.
Rename existing "print" function to "stdout".
diff --git a/updater/updater.c b/updater/updater.c
index 0977625..5a2ed2c 100644
--- a/updater/updater.c
+++ b/updater/updater.c
@@ -94,12 +94,26 @@
updater_info.cmd_pipe = cmd_pipe;
updater_info.package_zip = &za;
- char* result = Evaluate(&updater_info, root);
+ State state;
+ state.cookie = &updater_info;
+ state.script = script;
+ state.errmsg = NULL;
+
+ char* result = Evaluate(&state, root);
if (result == NULL) {
- const char* errmsg = GetError();
- fprintf(stderr, "script aborted with error: %s\n",
- errmsg == NULL ? "(none)" : errmsg);
- ClearError();
+ if (state.errmsg == NULL) {
+ fprintf(stderr, "script aborted (no error message)\n");
+ fprintf(cmd_pipe, "ui_print script aborted (no error message)\n");
+ } else {
+ fprintf(stderr, "script aborted: %s\n", state.errmsg);
+ char* line = strtok(state.errmsg, "\n");
+ while (line) {
+ fprintf(cmd_pipe, "ui_print %s\n", line);
+ line = strtok(NULL, "\n");
+ }
+ fprintf(cmd_pipe, "ui_print\n");
+ }
+ free(state.errmsg);
return 7;
} else {
fprintf(stderr, "script result was [%s]\n", result);
@@ -107,6 +121,7 @@
}
mzCloseZipArchive(&za);
+ free(script);
return 0;
}