relocate applypatch; add type system and new functions to edify

- Move applypatch to this package (from build).

- Add a rudimentary type system to edify:  instead of just returning a
  char*, functions now return a Value*, which is a struct that can
  carry different types of value (currently just STRING and BLOB).
  Convert all functions to this new scheme.

- Change the one-argument form of package_extract_file to return a
  Value of the new BLOB type.

- Add read_file() to load a local file and return a blob, and
  sha1_check() to test a blob (or string) against a set of possible
  sha1s.  read_file() uses the file-loading code from applypatch so it
  can read MTD partitions as well.

This is the start of better integration between applypatch and the
rest of edify.

b/2361316 - VZW Issue PP628: Continuous reset to Droid logo:
            framework-res.apk update failed (CR LIBtt59130)

Change-Id: Ibd038074749a4d515de1f115c498c6c589ee91e5

1 files changed, 6 insertions, 0 deletions

diff --git a/updater/updater.c b/updater/updater.c
index 2d16dee..6537a94 100644
--- a/updater/updater.c
+++ b/updater/updater.c
@@ -33,6 +33,12 @@
 #define SCRIPT_NAME "META-INF/com/google/android/updater-script"
 
 int main(int argc, char** argv) {
+    // Various things log information to stdout or stderr more or less
+    // at random.  The log file makes more sense if buffering is
+    // turned off so things appear in the right order.
+    setbuf(stdout, NULL);
+    setbuf(stderr, NULL);
+
     if (argc != 4) {
         fprintf(stderr, "unexpected number of arguments (%d)\n", argc);
         return 1;