PawletOS/android_bootable_recovery
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applypatch: Support flash mode.

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We may carry a full copy of recovery image in the /system, and use
/system/bin/install-recovery.sh to install the recovery. This CL adds
support to flash the recovery partition with the given image.

Bug: 22641135
Change-Id: I7a275b62fdd1bf41f97f6aab62d0200f7dae5aa1
(cherry picked from commit 68c5a67967)
This commit is contained in:
Tao Bao
2015-07-17 18:11:12 -07:00
parent cc3c34145e
commit abba55b4c5
3 changed files with 97 additions and 16 deletions
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27
applypatch/main.cpp
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@@ -47,8 +47,8 @@ static int SpaceMode(int argc, char** argv) {
// "<sha1>:<filename>" into the new parallel arrays *sha1s and
// *patches (loading file contents into the patches). Returns true on
// success.
static bool ParsePatchArgs(int argc, char** argv,
char*** sha1s, Value*** patches, int* num_patches) {
static bool ParsePatchArgs(int argc, char** argv, char*** sha1s,
Value*** patches, int* num_patches) {
*num_patches = argc;
*sha1s = reinterpret_cast<char**>(malloc(*num_patches * sizeof(char*)));
*patches = reinterpret_cast<Value**>(malloc(*num_patches * sizeof(Value*)));
@@ -98,7 +98,12 @@ static bool ParsePatchArgs(int argc, char** argv,
return false;
}
int PatchMode(int argc, char** argv) {
static int FlashMode(const char* src_filename, const char* tgt_filename,
const char* tgt_sha1, size_t tgt_size) {
return applypatch_flash(src_filename, tgt_filename, tgt_sha1, tgt_size);
}
static int PatchMode(int argc, char** argv) {
Value* bonus = NULL;
if (argc >= 3 && strcmp(argv[1], "-b") == 0) {
FileContents fc;
@@ -114,7 +119,7 @@ int PatchMode(int argc, char** argv) {
argv += 2;
}
if (argc < 6) {
if (argc < 4) {
return 2;
}
@@ -125,6 +130,16 @@ int PatchMode(int argc, char** argv) {
return 1;
}
// If no <src-sha1>:<patch> is provided, it is in flash mode.
if (argc == 5) {
if (bonus != NULL) {
printf("bonus file not supported in flash mode\n");
return 1;
}
return FlashMode(argv[1], argv[2], argv[3], target_size);
}
char** sha1s;
Value** patches;
int num_patches;
@@ -162,6 +177,10 @@ int PatchMode(int argc, char** argv) {
// - if the sha1 hash of <tgt-file> is <tgt-sha1>, does nothing and exits
// successfully.
//
// - otherwise, if no <src-sha1>:<patch> is provided, flashes <tgt-file> with
// <src-file>. <tgt-file> must be a partition name, while <src-file> must
// be a regular image file. <src-file> will not be deleted on success.
//
// - otherwise, if the sha1 hash of <src-file> is <src-sha1>, applies the
// bsdiff <patch> to <src-file> to produce a new file (the type of patch
// is automatically detected from the file header). If that new