opkg: switch to own fork to improve memory usage

Switch to our own fork of opkg to significantly reduce the required amount
of memory when updating lists or installing packages.

Preliminary tests showed a usage drop of about 90% during these operations,
from ~3.7MB with unmodified opkg to ~360KB with our custom fork.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

1 files changed, 0 insertions, 85 deletions

diff --git a/package/system/opkg/patches/100-add-force-checksum.patch b/package/system/opkg/patches/100-add-force-checksum.patch
deleted file mode 100644
index 5f65a7540c..0000000000
--- a/package/system/opkg/patches/100-add-force-checksum.patch
+++ /dev/null
@@ -1,85 +0,0 @@
---- a/libopkg/opkg_conf.c
-+++ b/libopkg/opkg_conf.c
-@@ -54,6 +54,7 @@ opkg_option_t options[] = {
- 	  { "force_reinstall", OPKG_OPT_TYPE_BOOL, &_conf.force_reinstall },
- 	  { "force_space", OPKG_OPT_TYPE_BOOL, &_conf.force_space },
- 	  { "force_postinstall", OPKG_OPT_TYPE_BOOL, &_conf.force_postinstall },
-+	  { "force_checksum", OPKG_OPT_TYPE_BOOL, &_conf.force_checksum },
-           { "check_signature", OPKG_OPT_TYPE_BOOL, &_conf.check_signature },
- 	  { "ftp_proxy", OPKG_OPT_TYPE_STRING, &_conf.ftp_proxy },
- 	  { "http_proxy", OPKG_OPT_TYPE_STRING, &_conf.http_proxy },
---- a/libopkg/opkg_conf.h
-+++ b/libopkg/opkg_conf.h
-@@ -78,6 +78,7 @@ struct opkg_conf
-      int force_removal_of_essential_packages;
-      int force_postinstall;
-      int force_remove;
-+     int force_checksum;
-      int check_signature;
-      int nodeps; /* do not follow dependencies */
-      int nocase; /* perform case insensitive matching */
---- a/libopkg/opkg_install.c
-+++ b/libopkg/opkg_install.c
-@@ -1327,12 +1327,19 @@ opkg_install_pkg(pkg_t *pkg, int from_up
-          file_md5 = file_md5sum_alloc(pkg->local_filename);
-          if (file_md5 && strcmp(file_md5, pkg->md5sum))
-          {
--              opkg_msg(ERROR, "Package %s md5sum mismatch. "
--			"Either the opkg or the package index are corrupt. "
--			"Try 'opkg update'.\n",
--			pkg->name);
--              free(file_md5);
--              return -1;
-+              if (!conf->force_checksum)
-+              {
-+                  opkg_msg(ERROR, "Package %s md5sum mismatch. "
-+			    "Either the opkg or the package index are corrupt. "
-+			    "Try 'opkg update'.\n",
-+			    pkg->name);
-+                  free(file_md5);
-+                  return -1;
-+              }
-+              else
-+              {
-+                  opkg_msg(NOTICE, "Ignored %s md5sum mismatch.\n", pkg->name);
-+              }
-          }
- 	 if (file_md5)
-               free(file_md5);
---- a/src/opkg-cl.c
-+++ b/src/opkg-cl.c
-@@ -42,6 +42,7 @@ enum {
- 	ARGS_OPT_FORCE_SPACE,
- 	ARGS_OPT_FORCE_POSTINSTALL,
- 	ARGS_OPT_FORCE_REMOVE,
-+	ARGS_OPT_FORCE_CHECKSUM,
- 	ARGS_OPT_ADD_ARCH,
- 	ARGS_OPT_ADD_DEST,
- 	ARGS_OPT_NOACTION,
-@@ -84,6 +85,8 @@ static struct option long_options[] = {
- 	{"force_postinstall", 0, 0, ARGS_OPT_FORCE_POSTINSTALL},
- 	{"force-remove", 0, 0, ARGS_OPT_FORCE_REMOVE},
- 	{"force_remove", 0, 0, ARGS_OPT_FORCE_REMOVE},
-+	{"force-checksum", 0, 0, ARGS_OPT_FORCE_CHECKSUM},
-+	{"force_checksum", 0, 0, ARGS_OPT_FORCE_CHECKSUM},
- 	{"noaction", 0, 0, ARGS_OPT_NOACTION},
- 	{"download-only", 0, 0, ARGS_OPT_DOWNLOAD_ONLY},
- 	{"nodeps", 0, 0, ARGS_OPT_NODEPS},
-@@ -178,6 +181,9 @@ args_parse(int argc, char *argv[])
- 		case ARGS_OPT_FORCE_REMOVE:
- 			conf->force_remove = 1;
- 			break;
-+		case ARGS_OPT_FORCE_CHECKSUM:
-+			conf->force_checksum = 1;
-+			break;
- 		case ARGS_OPT_NODEPS:
- 			conf->nodeps = 1;
- 			break;
-@@ -293,6 +299,7 @@ usage()
- 	printf("\t--force-space		Disable free space checks\n");
- 	printf("\t--force-postinstall	Run postinstall scripts even in offline mode\n");
- 	printf("\t--force-remove	Remove package even if prerm script fails\n");
-+	printf("\t--force-checksum	Don't fail on checksum mismatches\n");
- 	printf("\t--noaction		No action -- test only\n");
- 	printf("\t--download-only	No action -- download only\n");
- 	printf("\t--nodeps		Do not follow dependencies\n");