X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=fetch-clone.c;h=76b99afcdb8556fec284a621bbdc76223845877e;hb=e2b1d1ccdd2ef4db41819bb0d242b808cfe6c422;hp=da1b3ffbaa13ee4dfc8d080759b3f936850b7647;hpb=0825de892f1796e6ca6ac81e0af10f6c136a9f1d;p=git.git

diff --git a/fetch-clone.c b/fetch-clone.c
index da1b3ffba..76b99afcd 100644
--- a/fetch-clone.c
+++ b/fetch-clone.c
@@ -1,5 +1,7 @@
 #include "cache.h"
 #include "exec_cmd.h"
+#include "pkt-line.h"
+#include "sideband.h"
 #include <sys/wait.h>
 #include <sys/time.h>
 
@@ -23,7 +25,7 @@ static int finish_pack(const char *pack_tmp_name, const char *me)
 
 	pid = fork();
 	if (pid < 0)
-		die("git-clone-pack: unable to fork off git-index-pack");
+		die("%s: unable to fork off git-index-pack", me);
 	if (!pid) {
 		close(0);
 		dup2(pipe_fd[1], 1);
@@ -43,9 +45,8 @@ static int finish_pack(const char *pack_tmp_name, const char *me)
 
 	for (;;) {
 		int status, code;
-		int retval = waitpid(pid, &status, 0);
 
-		if (retval < 0) {
+		if (waitpid(pid, &status, 0) < 0) {
 			if (errno == EINTR)
 				continue;
 			error("waitpid failed (%s)", strerror(errno));
@@ -94,11 +95,46 @@ static int finish_pack(const char *pack_tmp_name, const char *me)
 	exit(1);
 }
 
-int receive_unpack_pack(int fd[2], const char *me, int quiet)
+static pid_t setup_sideband(int sideband, const char *me, int fd[2], int xd[2])
+{
+	pid_t side_pid;
+
+	if (!sideband) {
+		fd[0] = xd[0];
+		fd[1] = xd[1];
+		return 0;
+	}
+	/* xd[] is talking with upload-pack; subprocess reads from
+	 * xd[0], spits out band#2 to stderr, and feeds us band#1
+	 * through our fd[0].
+	 */
+	if (pipe(fd) < 0)
+		die("%s: unable to set up pipe", me);
+	side_pid = fork();
+	if (side_pid < 0)
+		die("%s: unable to fork off sideband demultiplexer", me);
+	if (!side_pid) {
+		/* subprocess */
+		close(fd[0]);
+		if (xd[0] != xd[1])
+			close(xd[1]);
+		if (recv_sideband(me, xd[0], fd[1], 2))
+			exit(1);
+		exit(0);
+	}
+	close(xd[0]);
+	close(fd[1]);
+	fd[1] = xd[1];
+	return side_pid;
+}
+
+int receive_unpack_pack(int xd[2], const char *me, int quiet, int sideband)
 {
 	int status;
-	pid_t pid;
+	pid_t pid, side_pid;
+	int fd[2];
 
+	side_pid = setup_sideband(sideband, me, fd, xd);
 	pid = fork();
 	if (pid < 0)
 		die("%s: unable to fork off git-unpack-objects", me);
@@ -139,18 +175,18 @@ int receive_unpack_pack(int fd[2], const char *me, int quiet)
 
 /*
  * A "binary msec" is a power-of-two-msec, aka 1/1024th of a second.
- * Keeing the time in that format means that "bytes / msecs" means
- * is the same as kB/s (modulo rounding).
+ * Keeping the time in that format means that "bytes / msecs" means
+ * the same as kB/s (modulo rounding).
  *
  * 1000512 is a magic number (usecs in a second, rounded up by half
  * of 1024, to make "rounding" come out right ;)
  */
 #define usec_to_binarymsec(x) ((int)(x) / (1000512 >> 10))
 
-int receive_keep_pack(int fd[2], const char *me, int quiet)
+int receive_keep_pack(int xd[2], const char *me, int quiet, int sideband)
 {
 	char tmpfile[PATH_MAX];
-	int ofd, ifd;
+	int ofd, ifd, fd[2];
 	unsigned long total;
 	static struct timeval prev_tv;
 	struct average {
@@ -160,6 +196,8 @@ int receive_keep_pack(int fd[2], const char *me, int quiet)
 	unsigned long avg_bytes, avg_time;
 	int idx = 0;
 
+	setup_sideband(sideband, me, fd, xd);
+
 	ifd = fd[0];
 	snprintf(tmpfile, sizeof(tmpfile),
 		 "%s/pack/tmp-XXXXXX", get_object_directory());