File 0001-add-zstd-support.patch of Package reprepro

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File 0001-add-zstd-support.patch of Package reprepro (Revision f563be64998f7310c7561a3b30a3fc2b)

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From ea5595786fa0ee4d36cb3102a84404d7ff4e45b2 Mon Sep 17 00:00:00 2001
From: Dimitri John Ledkov <dimitri.ledkov@canonical.com>
Date: Fri, 18 Jun 2021 12:20:36 +0100
Subject: Add Zstd support

Bug-Ubuntu: https://bugs.launchpad.net/bugs/1923845

diff --git a/globals.h b/globals.h
index 945341d..4c6154d 100644
--- a/globals.h
+++ b/globals.h
@@ -82,7 +82,7 @@ extern struct global_config {
 	int showdownloadpercent;
 } global;
 
-enum compression { c_none, c_gzip, c_bzip2, c_lzma, c_xz, c_lunzip, c_COUNT };
+enum compression { c_none, c_gzip, c_bzip2, c_lzma, c_xz, c_lunzip, c_zstd, c_COUNT };
 
 #define setzero(type, pointer) ({type *__var = pointer; memset(__var, 0, sizeof(type));})
 #define NEW(type) ((type *)malloc(sizeof(type)))
diff --git a/main.c b/main.c
index 632ca18..571d9f4 100644
--- a/main.c
+++ b/main.c
@@ -116,6 +116,7 @@ static char /*@only@*/
 	*unlzma = NULL,
 	*unxz = NULL,
 	*lunzip = NULL,
+	*unzstd = NULL,
 	*gnupghome = NULL;
 static int 	listmax = -1;
 static int 	listskip = 0;
@@ -142,7 +143,7 @@ static off_t reservedotherspace = 1024*1024;
  * to change something owned by lower owners. */
 enum config_option_owner config_state,
 #define O(x) owner_ ## x = CONFIG_OWNER_DEFAULT
-O(fast), O(x_morguedir), O(x_outdir), O(x_basedir), O(x_distdir), O(x_dbdir), O(x_listdir), O(x_confdir), O(x_logdir), O(x_methoddir), O(x_section), O(x_priority), O(x_component), O(x_architecture), O(x_packagetype), O(nothingiserror), O(nolistsdownload), O(keepunusednew), O(keepunreferenced), O(keeptemporaries), O(keepdirectories), O(askforpassphrase), O(skipold), O(export), O(waitforlock), O(spacecheckmode), O(reserveddbspace), O(reservedotherspace), O(guessgpgtty), O(verbosedatabase), O(gunzip), O(bunzip2), O(unlzma), O(unxz), O(lunzip), O(gnupghome), O(listformat), O(listmax), O(listskip), O(onlysmalldeletes), O(endhook), O(outhook);
+O(fast), O(x_morguedir), O(x_outdir), O(x_basedir), O(x_distdir), O(x_dbdir), O(x_listdir), O(x_confdir), O(x_logdir), O(x_methoddir), O(x_section), O(x_priority), O(x_component), O(x_architecture), O(x_packagetype), O(nothingiserror), O(nolistsdownload), O(keepunusednew), O(keepunreferenced), O(keeptemporaries), O(keepdirectories), O(askforpassphrase), O(skipold), O(export), O(waitforlock), O(spacecheckmode), O(reserveddbspace), O(reservedotherspace), O(guessgpgtty), O(verbosedatabase), O(gunzip), O(bunzip2), O(unlzma), O(unxz), O(lunzip), O(unzstd), O(gnupghome), O(listformat), O(listmax), O(listskip), O(onlysmalldeletes), O(endhook), O(outhook);
 #undef O
 
 #define CONFIGSET(variable, value) if (owner_ ## variable <= config_state) { \
@@ -289,6 +290,10 @@ ACTION_N(n, n, n, dumpuncompressors) {
 				printf(
 "not supported (install lzip or use --lunzip to tell where lunzip is).\n");
 				break;
+			case c_zstd:
+				printf(
+"not supported (install unzstd or use --unzstd to tell where unzstd is).\n");
+				break;
 			default:
 				printf("not supported\n");
 		}
@@ -4374,6 +4379,7 @@ LO_BUNZIP2,
 LO_UNLZMA,
 LO_UNXZ,
 LO_LZIP,
+LO_UNZSTD,
 LO_GNUPGHOME,
 LO_LISTFORMAT,
 LO_LISTSKIP,
@@ -4664,6 +4670,9 @@ static void handle_option(int c, const char *argument) {
 				case LO_LZIP:
 					CONFIGDUP(lunzip, argument);
 					break;
+				case LO_UNZSTD:
+					CONFIGDUP(unzstd, argument);
+					break;
 				case LO_GNUPGHOME:
 					CONFIGDUP(gnupghome, argument);
 					break;
@@ -4982,6 +4991,7 @@ int main(int argc, char *argv[]) {
 		{"unlzma", required_argument, &longoption, LO_UNLZMA},
 		{"unxz", required_argument, &longoption, LO_UNXZ},
 		{"lunzip", required_argument, &longoption, LO_LZIP},
+		{"unzstd", required_argument, &longoption, LO_UNZSTD},
 		{"gnupghome", required_argument, &longoption, LO_GNUPGHOME},
 		{"list-format", required_argument, &longoption, LO_LISTFORMAT},
 		{"list-skip", required_argument, &longoption, LO_LISTSKIP},
@@ -5148,12 +5158,15 @@ int main(int argc, char *argv[]) {
 		unxz = expand_plus_prefix(unxz, "unxz", "boc", true);
 	if (lunzip != NULL && lunzip[0] == '+')
 		lunzip = expand_plus_prefix(lunzip, "lunzip", "boc", true);
-	uncompressions_check(gunzip, bunzip2, unlzma, unxz, lunzip);
+	if (unzstd != NULL && lunzip[0] == '+')
+		lunzip = expand_plus_prefix(unzstd, "unzstd", "boc", true);
+	uncompressions_check(gunzip, bunzip2, unlzma, unxz, lunzip, unzstd);
 	free(gunzip);
 	free(bunzip2);
 	free(unlzma);
 	free(unxz);
 	free(lunzip);
+	free(unzstd);
 
 	a = all_actions;
 	while (a->name != NULL) {
diff --git a/tool.c b/tool.c
index 5716d44..c841f8c 100644
--- a/tool.c
+++ b/tool.c
@@ -2969,6 +2969,7 @@ int main(int argc, char *argv[]) {
 		{"unlzma", required_argument, &longoption, 3},
 		{"unxz", required_argument, &longoption, 4},
 		{"lunzip", required_argument, &longoption, 5},
+		{"unzstd", required_argument, &longoption, 7},
 		{NULL, 0, NULL, 0},
 	};
 	int c;
@@ -2979,7 +2980,7 @@ int main(int argc, char *argv[]) {
 	struct strlist searchpath;
 	struct changes *changesdata;
 	char *gunzip = NULL, *bunzip2 = NULL, *unlzma = NULL,
-	     *unxz = NULL, *lunzip = NULL;
+	*unxz = NULL, *lunzip = NULL, *unzstd = NULL;
 	retvalue r;
 
 	strlist_init(&searchpath);
@@ -3003,6 +3004,9 @@ int main(int argc, char *argv[]) {
 					case 5:
 						lunzip = strdup(optarg);
 						break;
+					case 7:
+						unzstd = strdup(optarg);
+						break;
 					case 6:
 						create_file = true;
 						all_fields = true;
@@ -3029,7 +3033,7 @@ int main(int argc, char *argv[]) {
 		about(false);
 	}
 	signature_init(false);
-	uncompressions_check(gunzip, bunzip2, unlzma, unxz, lunzip);
+	uncompressions_check(gunzip, bunzip2, unlzma, unxz, lunzip, unzstd);
 
 	changesfilename = argv[optind];
 	if (strcmp(changesfilename, "-") != 0 &&
diff --git a/uncompression.c b/uncompression.c
index b191cf8..43819ae 100644
--- a/uncompression.c
+++ b/uncompression.c
@@ -42,18 +42,18 @@
 #include "uncompression.h"
 
 const char * const uncompression_suffix[c_COUNT] = {
-	"", ".gz", ".bz2", ".lzma", ".xz", ".lz" };
+	"", ".gz", ".bz2", ".lzma", ".xz", ".lz", ".zst"};
 
 /* So help messages can hint what option to try */
 const char * const uncompression_option[c_COUNT] = {
-	NULL, NULL, "--bunzip2", "--unlzma", "--unxz", "--lunzip" };
+	NULL, NULL, "--bunzip2", "--unlzma", "--unxz", "--lunzip", "--unzstd" };
 /* how those are called in the config file */
 const char * const uncompression_config[c_COUNT] = {
-	".", ".gz", ".bz2", ".lzma", ".xz", ".lz" };
+	".", ".gz", ".bz2", ".lzma", ".xz", ".lz", ".zst" };
 
 
 /*@null@*/ char *extern_uncompressors[c_COUNT] = {
-	NULL, NULL, NULL, NULL, NULL};
+	NULL, NULL, NULL, NULL, NULL, NULL};
 
 /*@null@*/ static struct uncompress_task {
 	struct uncompress_task *next;
@@ -348,12 +348,13 @@ static void search_binary(/*@null@*/const char *setting, const char *default_pro
 }
 
 /* check for existence of external programs */
-void uncompressions_check(const char *gunzip, const char *bunzip2, const char *unlzma, const char *unxz, const char *lunzip) {
+void uncompressions_check(const char *gunzip, const char *bunzip2, const char *unlzma, const char *unxz, const char *lunzip, const char *unzstd) {
 	search_binary(gunzip,  "gunzip",  &extern_uncompressors[c_gzip]);
 	search_binary(bunzip2, "bunzip2", &extern_uncompressors[c_bzip2]);
 	search_binary(unlzma,  "unlzma",  &extern_uncompressors[c_lzma]);
 	search_binary(unxz,    "unxz",    &extern_uncompressors[c_xz]);
 	search_binary(lunzip,  "lunzip",  &extern_uncompressors[c_lunzip]);
+	search_binary(unzstd,  "unzstd",  &extern_uncompressors[c_zstd]);
 }
 
 static inline retvalue builtin_uncompress(const char *compressed, const char *destination, enum compression compression) {
diff --git a/uncompression.h b/uncompression.h
index 9da1f5d..ae0e2e4 100644
--- a/uncompression.h
+++ b/uncompression.h
@@ -63,7 +63,7 @@ retvalue uncompress_fdopen(/*@out@*/struct compressedfile **, int, off_t, enum c
 /**** general initialisation ****/
 
 /* check for existence of external programs */
-void uncompressions_check(const char *gunzip, const char *bunzip2, const char *unlzma, const  char *unxz, const char *lunzip);
+void uncompressions_check(const char *gunzip, const char *bunzip2, const char *unlzma, const  char *unxz, const char *lunzip, const char *unzstd);
 
 #endif

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File 0001-add-zstd-support.patch of Package reprepro (Revision f563be64998f7310c7561a3b30a3fc2b)

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