From 2495f735e2c9e4b91de48248326a226d27013b01 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Thu, 3 Jan 2013 20:03:14 +0000
Subject: [PATCH] opkg: keep package list files compressed when src/gz is used,
 reduces tmpfs usage

Backport of r34869

SVN-Revision: 35003
---
 .../patches/070-use_gzipped_pkg_list.patch    | 120 ++++++++++++++++++
 1 file changed, 120 insertions(+)
 create mode 100644 package/opkg/patches/070-use_gzipped_pkg_list.patch

diff --git a/package/opkg/patches/070-use_gzipped_pkg_list.patch b/package/opkg/patches/070-use_gzipped_pkg_list.patch
new file mode 100644
index 0000000000..d32b519182
--- /dev/null
+++ b/package/opkg/patches/070-use_gzipped_pkg_list.patch
@@ -0,0 +1,120 @@
+--- a/libopkg/opkg.c
++++ b/libopkg/opkg.c
+@@ -592,49 +592,8 @@ opkg_update_package_lists(opkg_progress_
+ 				      src->gzip ? "Packages.gz" : "Packages");
+ 
+ 		sprintf_alloc(&list_file_name, "%s/%s", lists_dir, src->name);
+-		if (src->gzip) {
+-			FILE *in, *out;
+-			struct _curl_cb_data cb_data;
+-			char *tmp_file_name = NULL;
+ 
+-			sprintf_alloc(&tmp_file_name, "%s/%s.gz", tmp,
+-				      src->name);
+-
+-			opkg_msg(INFO, "Downloading %s to %s...\n", url,
+-					tmp_file_name);
+-
+-			cb_data.cb = progress_callback;
+-			cb_data.progress_data = &pdata;
+-			cb_data.user_data = user_data;
+-			cb_data.start_range =
+-			    100 * sources_done / sources_list_count;
+-			cb_data.finish_range =
+-			    100 * (sources_done + 1) / sources_list_count;
+-
+-			err = opkg_download(url, tmp_file_name,
+-					  (curl_progress_func) curl_progress_cb,
+-					  &cb_data, 0);
+-
+-			if (err == 0) {
+-				opkg_msg(INFO, "Inflating %s...\n",
+-						tmp_file_name);
+-				in = fopen(tmp_file_name, "r");
+-				out = fopen(list_file_name, "w");
+-				if (in && out)
+-					unzip(in, out);
+-				else
+-					err = 1;
+-				if (in)
+-					fclose(in);
+-				if (out)
+-					fclose(out);
+-				unlink(tmp_file_name);
+-			}
+-			free(tmp_file_name);
+-		} else
+-			err = opkg_download(url, list_file_name, NULL, NULL, 0);
+-
+-		if (err) {
++		if (opkg_download(url, list_file_name, NULL, NULL, 0)) {
+ 			opkg_msg(ERROR, "Couldn't retrieve %s\n", url);
+ 			result = -1;
+ 		}
+--- a/libopkg/opkg_cmd.c
++++ b/libopkg/opkg_cmd.c
+@@ -162,30 +162,7 @@ opkg_update_cmd(int argc, char **argv)
+ 	      sprintf_alloc(&url, "%s/%s", src->value, src->gzip ? "Packages.gz" : "Packages");
+ 
+ 	  sprintf_alloc(&list_file_name, "%s/%s", lists_dir, src->name);
+-	  if (src->gzip) {
+-	      char *tmp_file_name;
+-	      FILE *in, *out;
+-
+-	      sprintf_alloc (&tmp_file_name, "%s/%s.gz", tmp, src->name);
+-	      err = opkg_download(url, tmp_file_name, NULL, NULL, 0);
+-	      if (err == 0) {
+-		   opkg_msg(NOTICE, "Inflating %s.\n", url);
+-		   in = fopen (tmp_file_name, "r");
+-		   out = fopen (list_file_name, "w");
+-		   if (in && out)
+-			unzip (in, out);
+-		   else
+-			err = 1;
+-		   if (in)
+-			fclose (in);
+-		   if (out)
+-			fclose (out);
+-		   unlink (tmp_file_name);
+-	      }
+-	      free(tmp_file_name);
+-	  } else
+-	      err = opkg_download(url, list_file_name, NULL, NULL, 0);
+-	  if (err) {
++	  if (opkg_download(url, list_file_name, NULL, NULL, 0)) {
+ 	       failures++;
+ 	  } else {
+ 	       opkg_msg(NOTICE, "Updated list of available packages in %s.\n",
+--- a/libopkg/pkg_hash.c
++++ b/libopkg/pkg_hash.c
+@@ -102,12 +102,18 @@ pkg_hash_add_from_file(const char *file_
+ 			pkg_src_t *src, pkg_dest_t *dest, int is_status_file)
+ {
+ 	pkg_t *pkg;
+-	FILE *fp;
++	FILE *fp, *fp_c = NULL;
+ 	char *buf;
+ 	const size_t len = 4096;
+ 	int ret = 0;
++	int pid;
+ 
+ 	fp = fopen(file_name, "r");
++	if (fp && src && src->gzip) {
++		fp_c = fp;
++		fp = gz_open(fp_c, &pid);
++	}
++
+ 	if (fp == NULL) {
+ 		opkg_perror(ERROR, "Failed to open %s", file_name);
+ 		return -1;
+@@ -154,6 +160,10 @@ pkg_hash_add_from_file(const char *file_
+ 
+ 	free(buf);
+ 	fclose(fp);
++	if (fp_c) {
++		fclose(fp_c);
++		gz_close(pid);
++	}
+ 
+ 	return ret;
+ }
-- 
2.30.2