From f97c707a3b975d32910331f72783ec3044e3c0ee Mon Sep 17 00:00:00 2001
From: Michael Krelin <hacker@klever.net>
Date: Wed, 18 Jul 2007 14:40:03 +0200
Subject: add support for snapshot tarballs - reworked cgit_print_snapshot to
 use a list of supported archivers and pick 	one for the suffix supplied -
 moved printing of snaphot links into ui-snapshot and make it iterate through 
 the said list

---
 ui-snapshot.c | 77 +++++++++++++++++++++++++++++++++++++----------------------
 1 file changed, 49 insertions(+), 28 deletions(-)

(limited to 'ui-snapshot.c')

diff --git a/ui-snapshot.c b/ui-snapshot.c
index 2257d6b..eb5f1cd 100644
--- a/ui-snapshot.c
+++ b/ui-snapshot.c
@@ -8,40 +8,61 @@
 
 #include "cgit.h"
 
-static void cgit_print_zip(struct cacheitem *item, const char *hex, 
-			   const char *prefix, const char *filename)
+static const struct snapshot_archive_t {
+    	const char *suffix;
+	const char *mimetype;
+	write_archive_fn_t write_func;
+}	snapshot_archives[] = {
+	{ ".zip", "application/x-zip", write_zip_archive },
+	{ ".tar.gz", "application/x-gzip", write_tar_archive }
+};
+
+void cgit_print_snapshot(struct cacheitem *item, const char *hex, 
+			 const char *prefix, const char *filename)
 {
-	struct archiver_args args;
-	struct commit *commit;
-	unsigned char sha1[20];
+	int fnl = strlen(filename);
+	int f;
+    	for(f=0;f<(sizeof(snapshot_archives)/sizeof(*snapshot_archives));++f) {
+		const struct snapshot_archive_t* sat = &snapshot_archives[f];
+		int sl = strlen(sat->suffix);
+		if(fnl<sl || strcmp(&filename[fnl-sl],sat->suffix))
+			continue;
 
-	if (get_sha1(hex, sha1)) {
-		cgit_print_error(fmt("Bad object id: %s", hex));
-		return;
-	}
-	commit = lookup_commit_reference(sha1);
+		struct archiver_args args;
+		struct commit *commit;
+		unsigned char sha1[20];
+
+		if(get_sha1(hex, sha1)) {
+			cgit_print_error(fmt("Bad object id: %s", hex));
+			return;
+		}
+		commit = lookup_commit_reference(sha1);
+
+		if(!commit) {
+			cgit_print_error(fmt("Not a commit reference: %s", hex));
+			return;;
+		}
 
-	if (!commit) {
-		cgit_print_error(fmt("Not a commit reference: %s", hex));
+		memset(&args,0,sizeof(args));
+		args.base = fmt("%s/", prefix);
+		args.tree = commit->tree;
+
+		cgit_print_snapshot_start(sat->mimetype, filename, item);
+		(*sat->write_func)(&args);
 		return;
 	}
-
-	memset(&args, 0, sizeof(args));
-	args.base = fmt("%s/", prefix);
-	args.tree = commit->tree;
-	
-	cgit_print_snapshot_start("application/x-zip", filename, item);
-	write_zip_archive(&args);
+	cgit_print_error(fmt("Unsupported snapshot format: %s", filename));
 }
 
-
-void cgit_print_snapshot(struct cacheitem *item, const char *hex, 
-			 const char *format, const char *prefix,
-			 const char *filename)
+void cgit_print_snapshot_links(const char *repo,const char *hex)
 {
-	if (!strcmp(format, "zip"))
-		cgit_print_zip(item, hex, prefix, filename);
-	else
-		cgit_print_error(fmt("Unsupported snapshot format: %s", 
-				     format));
+    	char *filename;
+	int f;
+    	for(f=0;f<(sizeof(snapshot_archives)/sizeof(*snapshot_archives));++f) {
+		const struct snapshot_archive_t* sat = &snapshot_archives[f];
+		filename = fmt("%s-%s%s",repo,hex,sat->suffix);
+		htmlf("<a href='%s'>%s</a><br/>",
+			cgit_pageurl(repo,"snapshot",
+			    fmt("id=%s&amp;name=%s",hex,filename)), filename);
+	}
 }
-- 
cgit v1.2.3


From 4a92cbb7fd1084764dfe9b97a163f1084c790b15 Mon Sep 17 00:00:00 2001
From: Michael Krelin <hacker@klever.net>
Date: Fri, 20 Jul 2007 20:58:23 +0200
Subject: compress .tar.gz using gzip as a filter

---
 ui-snapshot.c | 38 +++++++++++++++++++++++++++++++++++++-
 1 file changed, 37 insertions(+), 1 deletion(-)

(limited to 'ui-snapshot.c')

diff --git a/ui-snapshot.c b/ui-snapshot.c
index eb5f1cd..649569f 100644
--- a/ui-snapshot.c
+++ b/ui-snapshot.c
@@ -8,13 +8,49 @@
 
 #include "cgit.h"
 
+static int write_tar_gzip_archive(struct archiver_args *args)
+{
+    int rw[2];
+    pid_t gzpid;
+    int stdout2;
+    int status;
+    int rv;
+
+    stdout2 = chk_non_negative(dup(STDIN_FILENO), "Preserving STDOUT before compressing");
+    chk_zero(pipe(rw), "Opening pipe from compressor subprocess");
+    gzpid = chk_non_negative(fork(), "Forking compressor subprocess");
+    if(gzpid==0) {
+	    /* child */
+	    chk_zero(close(rw[1]), "Closing write end of pipe in child");
+	    chk_zero(close(STDIN_FILENO), "Closing STDIN");
+	    chk_non_negative(dup2(rw[0],STDIN_FILENO), "Redirecting compressor input to stdin");
+	    execlp("gzip","gzip",NULL);
+	    _exit(-1);
+    }
+    /* parent */
+    chk_zero(close(rw[0]), "Closing read end of pipe");
+    chk_non_negative(dup2(rw[1],STDOUT_FILENO), "Redirecting output to compressor");
+    
+    rv = write_tar_archive(args);
+
+    chk_zero(close(STDOUT_FILENO), "Closing STDOUT redirected to compressor");
+    chk_non_negative(dup2(stdout2,STDOUT_FILENO), "Restoring uncompressed STDOUT");
+    chk_zero(close(stdout2), "Closing uncompressed STDOUT");
+    chk_zero(close(rw[1]), "Closing write end of pipe in parent");
+    chk_positive(waitpid(gzpid,&status,0), "Waiting on compressor process");
+    if(! ( WIFEXITED(status) && WEXITSTATUS(status)==0 ) )
+	    cgit_print_error("Failed to compress archive");
+
+    return rv;
+}
+
 static const struct snapshot_archive_t {
     	const char *suffix;
 	const char *mimetype;
 	write_archive_fn_t write_func;
 }	snapshot_archives[] = {
 	{ ".zip", "application/x-zip", write_zip_archive },
-	{ ".tar.gz", "application/x-gzip", write_tar_archive }
+	{ ".tar.gz", "application/x-gzip", write_tar_gzip_archive }
 };
 
 void cgit_print_snapshot(struct cacheitem *item, const char *hex, 
-- 
cgit v1.2.3


From 18a99bdf879953307d6ae6eb56c2117a4c074b0d Mon Sep 17 00:00:00 2001
From: Michael Krelin <hacker@klever.net>
Date: Sat, 21 Jul 2007 02:05:34 +0200
Subject: introduced .tar.bz2 snapshots

 - reworked write_tar_gzip_archive to handle arbitrary filter as a
   write_compressed_tar_archive
 - reformatted whitespaces in the said function to adhere to common cgit
   standards
 - added wrappers around write_compressed_tar_archive for .tar.gz and .tar.bz2
 - added a hint for vim to use 8 characters shift width by default

Signed-off-by: Michael Krelin <hacker@klever.net>
---
 ui-snapshot.c | 73 ++++++++++++++++++++++++++++++++++-------------------------
 1 file changed, 42 insertions(+), 31 deletions(-)

(limited to 'ui-snapshot.c')

diff --git a/ui-snapshot.c b/ui-snapshot.c
index 649569f..f623f35 100644
--- a/ui-snapshot.c
+++ b/ui-snapshot.c
@@ -8,40 +8,49 @@
 
 #include "cgit.h"
 
-static int write_tar_gzip_archive(struct archiver_args *args)
+static int write_compressed_tar_archive(struct archiver_args *args,const char *filter)
 {
-    int rw[2];
-    pid_t gzpid;
-    int stdout2;
-    int status;
-    int rv;
+	int rw[2];
+	pid_t gzpid;
+	int stdout2;
+	int status;
+	int rv;
+
+	stdout2 = chk_non_negative(dup(STDIN_FILENO), "Preserving STDOUT before compressing");
+	chk_zero(pipe(rw), "Opening pipe from compressor subprocess");
+	gzpid = chk_non_negative(fork(), "Forking compressor subprocess");
+	if(gzpid==0) {
+		/* child */
+		chk_zero(close(rw[1]), "Closing write end of pipe in child");
+		chk_zero(close(STDIN_FILENO), "Closing STDIN");
+		chk_non_negative(dup2(rw[0],STDIN_FILENO), "Redirecting compressor input to stdin");
+		execlp(filter,filter,NULL);
+		_exit(-1);
+	}
+	/* parent */
+	chk_zero(close(rw[0]), "Closing read end of pipe");
+	chk_non_negative(dup2(rw[1],STDOUT_FILENO), "Redirecting output to compressor");
+	
+	rv = write_tar_archive(args);
 
-    stdout2 = chk_non_negative(dup(STDIN_FILENO), "Preserving STDOUT before compressing");
-    chk_zero(pipe(rw), "Opening pipe from compressor subprocess");
-    gzpid = chk_non_negative(fork(), "Forking compressor subprocess");
-    if(gzpid==0) {
-	    /* child */
-	    chk_zero(close(rw[1]), "Closing write end of pipe in child");
-	    chk_zero(close(STDIN_FILENO), "Closing STDIN");
-	    chk_non_negative(dup2(rw[0],STDIN_FILENO), "Redirecting compressor input to stdin");
-	    execlp("gzip","gzip",NULL);
-	    _exit(-1);
-    }
-    /* parent */
-    chk_zero(close(rw[0]), "Closing read end of pipe");
-    chk_non_negative(dup2(rw[1],STDOUT_FILENO), "Redirecting output to compressor");
-    
-    rv = write_tar_archive(args);
+	chk_zero(close(STDOUT_FILENO), "Closing STDOUT redirected to compressor");
+	chk_non_negative(dup2(stdout2,STDOUT_FILENO), "Restoring uncompressed STDOUT");
+	chk_zero(close(stdout2), "Closing uncompressed STDOUT");
+	chk_zero(close(rw[1]), "Closing write end of pipe in parent");
+	chk_positive(waitpid(gzpid,&status,0), "Waiting on compressor process");
+	if(! ( WIFEXITED(status) && WEXITSTATUS(status)==0 ) )
+		cgit_print_error("Failed to compress archive");
 
-    chk_zero(close(STDOUT_FILENO), "Closing STDOUT redirected to compressor");
-    chk_non_negative(dup2(stdout2,STDOUT_FILENO), "Restoring uncompressed STDOUT");
-    chk_zero(close(stdout2), "Closing uncompressed STDOUT");
-    chk_zero(close(rw[1]), "Closing write end of pipe in parent");
-    chk_positive(waitpid(gzpid,&status,0), "Waiting on compressor process");
-    if(! ( WIFEXITED(status) && WEXITSTATUS(status)==0 ) )
-	    cgit_print_error("Failed to compress archive");
+	return rv;
+}
 
-    return rv;
+static int write_tar_gzip_archive(struct archiver_args *args)
+{
+	return write_compressed_tar_archive(args,"gzip");
+}
+static int write_tar_bzip2_archive(struct archiver_args *args)
+{
+	return write_compressed_tar_archive(args,"bzip2");
 }
 
 static const struct snapshot_archive_t {
@@ -50,7 +59,8 @@ static const struct snapshot_archive_t {
 	write_archive_fn_t write_func;
 }	snapshot_archives[] = {
 	{ ".zip", "application/x-zip", write_zip_archive },
-	{ ".tar.gz", "application/x-gzip", write_tar_gzip_archive }
+	{ ".tar.gz", "application/x-tar", write_tar_gzip_archive },
+	{ ".tar.bz2", "application/x-tar", write_tar_bzip2_archive }
 };
 
 void cgit_print_snapshot(struct cacheitem *item, const char *hex, 
@@ -102,3 +112,4 @@ void cgit_print_snapshot_links(const char *repo,const char *hex)
 			    fmt("id=%s&amp;name=%s",hex,filename)), filename);
 	}
 }
+/* vim:set sw=8: */
-- 
cgit v1.2.3


From 86ca02231fc42a629c50abebcae3ea9d4d692979 Mon Sep 17 00:00:00 2001
From: Michael Krelin <hacker@klever.net>
Date: Sat, 21 Jul 2007 02:14:35 +0200
Subject: add plain uncompressed tar snapshort format

time to make available snapshots selectable

Signed-off-by: Michael Krelin <hacker@klever.net>
---
 ui-snapshot.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'ui-snapshot.c')

diff --git a/ui-snapshot.c b/ui-snapshot.c
index f623f35..84bf8f7 100644
--- a/ui-snapshot.c
+++ b/ui-snapshot.c
@@ -60,7 +60,8 @@ static const struct snapshot_archive_t {
 }	snapshot_archives[] = {
 	{ ".zip", "application/x-zip", write_zip_archive },
 	{ ".tar.gz", "application/x-tar", write_tar_gzip_archive },
-	{ ".tar.bz2", "application/x-tar", write_tar_bzip2_archive }
+	{ ".tar.bz2", "application/x-tar", write_tar_bzip2_archive },
+	{ ".tar", "application/x-tar", write_tar_archive }
 };
 
 void cgit_print_snapshot(struct cacheitem *item, const char *hex, 
-- 
cgit v1.2.3


From 0df096f6e146187e55e2203ea1c017442cc2c8c6 Mon Sep 17 00:00:00 2001
From: Michael Krelin <hacker@klever.net>
Date: Sat, 21 Jul 2007 13:13:40 +0200
Subject: added snapshot filename to the link

 - changed cgit_pageurl into cgit_fileurl with the filename parameter
 - rewritten cgit_pageurl as a wrapper around cgit_fileurl

Signed-off-by: Michael Krelin <hacker@klever.net>
---
 ui-snapshot.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'ui-snapshot.c')

diff --git a/ui-snapshot.c b/ui-snapshot.c
index 84bf8f7..7076b50 100644
--- a/ui-snapshot.c
+++ b/ui-snapshot.c
@@ -109,7 +109,7 @@ void cgit_print_snapshot_links(const char *repo,const char *hex)
 		const struct snapshot_archive_t* sat = &snapshot_archives[f];
 		filename = fmt("%s-%s%s",repo,hex,sat->suffix);
 		htmlf("<a href='%s'>%s</a><br/>",
-			cgit_pageurl(repo,"snapshot",
+			cgit_fileurl(repo,"snapshot",filename,
 			    fmt("id=%s&amp;name=%s",hex,filename)), filename);
 	}
 }
-- 
cgit v1.2.3


From 97c025ae8ecf9764fd6996c81c51c3de4adb837c Mon Sep 17 00:00:00 2001
From: Michael Krelin <hacker@klever.net>
Date: Sat, 21 Jul 2007 15:29:55 +0200
Subject: shorten snapshot names to repo basename

Signed-off-by: Michael Krelin <hacker@klever.net>
---
 ui-snapshot.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'ui-snapshot.c')

diff --git a/ui-snapshot.c b/ui-snapshot.c
index 7076b50..053fd48 100644
--- a/ui-snapshot.c
+++ b/ui-snapshot.c
@@ -107,7 +107,7 @@ void cgit_print_snapshot_links(const char *repo,const char *hex)
 	int f;
     	for(f=0;f<(sizeof(snapshot_archives)/sizeof(*snapshot_archives));++f) {
 		const struct snapshot_archive_t* sat = &snapshot_archives[f];
-		filename = fmt("%s-%s%s",repo,hex,sat->suffix);
+		filename = fmt("%s-%s%s",cgit_repobasename(repo),hex,sat->suffix);
 		htmlf("<a href='%s'>%s</a><br/>",
 			cgit_fileurl(repo,"snapshot",filename,
 			    fmt("id=%s&amp;name=%s",hex,filename)), filename);
-- 
cgit v1.2.3


From dc3c9b5bc48779f37f2fbcbadce8865eaf4a360e Mon Sep 17 00:00:00 2001
From: Michael Krelin <hacker@klever.net>
Date: Sat, 21 Jul 2007 18:00:53 +0200
Subject: allow selective enabling of snapshots

 snapshot configuration parameter now can be a
 space/slash/comma/colon/semicolon/pipe-separated list of snaphot suffixes as
 listed in ui-snapshot.c

Signed-off-by: Michael Krelin <hacker@klever.net>
---
 ui-snapshot.c | 43 ++++++++++++++++++++++++++++++++++++-------
 1 file changed, 36 insertions(+), 7 deletions(-)

(limited to 'ui-snapshot.c')

diff --git a/ui-snapshot.c b/ui-snapshot.c
index 053fd48..d6be55b 100644
--- a/ui-snapshot.c
+++ b/ui-snapshot.c
@@ -57,21 +57,25 @@ static const struct snapshot_archive_t {
     	const char *suffix;
 	const char *mimetype;
 	write_archive_fn_t write_func;
+	int bit;
 }	snapshot_archives[] = {
-	{ ".zip", "application/x-zip", write_zip_archive },
-	{ ".tar.gz", "application/x-tar", write_tar_gzip_archive },
-	{ ".tar.bz2", "application/x-tar", write_tar_bzip2_archive },
-	{ ".tar", "application/x-tar", write_tar_archive }
+	{ ".zip", "application/x-zip", write_zip_archive, 0x1 },
+	{ ".tar.gz", "application/x-tar", write_tar_gzip_archive, 0x2 },
+	{ ".tar.bz2", "application/x-tar", write_tar_bzip2_archive, 0x4 },
+	{ ".tar", "application/x-tar", write_tar_archive, 0x8 }
 };
 
 void cgit_print_snapshot(struct cacheitem *item, const char *hex, 
-			 const char *prefix, const char *filename)
+			 const char *prefix, const char *filename,
+			 int snapshots)
 {
 	int fnl = strlen(filename);
 	int f;
     	for(f=0;f<(sizeof(snapshot_archives)/sizeof(*snapshot_archives));++f) {
 		const struct snapshot_archive_t* sat = &snapshot_archives[f];
-		int sl = strlen(sat->suffix);
+		int sl;
+		if(!(snapshots&sat->bit)) continue;
+		sl = strlen(sat->suffix);
 		if(fnl<sl || strcmp(&filename[fnl-sl],sat->suffix))
 			continue;
 
@@ -101,16 +105,41 @@ void cgit_print_snapshot(struct cacheitem *item, const char *hex,
 	cgit_print_error(fmt("Unsupported snapshot format: %s", filename));
 }
 
-void cgit_print_snapshot_links(const char *repo,const char *hex)
+void cgit_print_snapshot_links(const char *repo,const char *hex,int snapshots)
 {
     	char *filename;
 	int f;
     	for(f=0;f<(sizeof(snapshot_archives)/sizeof(*snapshot_archives));++f) {
 		const struct snapshot_archive_t* sat = &snapshot_archives[f];
+		if(!(snapshots&sat->bit)) continue;
 		filename = fmt("%s-%s%s",cgit_repobasename(repo),hex,sat->suffix);
 		htmlf("<a href='%s'>%s</a><br/>",
 			cgit_fileurl(repo,"snapshot",filename,
 			    fmt("id=%s&amp;name=%s",hex,filename)), filename);
 	}
 }
+
+int cgit_parse_snapshots_mask(const char *str)
+{
+	static const char *delim = " \t,:/|;";
+	int f, tl, rv = 0;
+	/* favor legacy setting */
+	if(atoi(str)) return 1;
+	for(;;) {
+		str += strspn(str,delim);
+		tl = strcspn(str,delim);
+		if(!tl)
+			break;
+		for(f=0;f<(sizeof(snapshot_archives)/sizeof(*snapshot_archives));++f) {
+			const struct snapshot_archive_t* sat = &snapshot_archives[f];
+			if(! ( strncmp(sat->suffix,str,tl) && strncmp(sat->suffix+1,str,tl-1) ) ) {
+				rv |= sat->bit;
+				break;
+			}
+		}
+		str += tl;
+	}
+	return rv;
+}
+
 /* vim:set sw=8: */
-- 
cgit v1.2.3