From 13e4760a1649d24519f95ae2375704738b2b219e Mon Sep 17 00:00:00 2001 From: Johannes Sixt Date: Tue, 8 Jan 2008 17:24:53 +0100 Subject: [PATCH] recv_sideband: Do not use ANSI escape sequence on dumb terminals. The "clear to end of line" sequence is used to nicely output the progress indicator without leaving garbage on the terminal. However, this works only on ANSI capable terminals. We use the same check as in color.c to find out whether the terminal supports this feature and use a workaround (a few spaces in a row) if it does not. [jc: as an old fashoned git myself, and given the fact that the possible prefix and suffix are small number of short constant strings, I actually prefer a simpler-and-more-stupid approach. This is with Nico's clean-up.] Signed-off-by: Johannes Sixt Signed-off-by: Junio C Hamano --- sideband.c | 23 ++++++++++++++++++----- 1 file changed, 18 insertions(+), 5 deletions(-) diff --git a/sideband.c b/sideband.c index 756bbc28d..b6777812c 100644 --- a/sideband.c +++ b/sideband.c @@ -13,14 +13,27 @@ */ #define PREFIX "remote:" -#define SUFFIX "\033[K" /* change to " " if ANSI sequences don't work */ + +#define ANSI_SUFFIX "\033[K" +#define DUMB_SUFFIX " " + +#define FIX_SIZE 10 /* large enough for any of the above */ int recv_sideband(const char *me, int in_stream, int out, int err) { unsigned pf = strlen(PREFIX); - unsigned sf = strlen(SUFFIX); - char buf[pf + LARGE_PACKET_MAX + sf + 1]; + unsigned sf; + char buf[LARGE_PACKET_MAX + 2*FIX_SIZE]; + char *suffix, *term; + memcpy(buf, PREFIX, pf); + term = getenv("TERM"); + if (term && strcmp(term, "dumb")) + suffix = ANSI_SUFFIX; + else + suffix = DUMB_SUFFIX; + sf = strlen(suffix); + while (1) { int band, len; len = packet_read_line(in_stream, buf + pf, LARGE_PACKET_MAX); @@ -59,10 +72,10 @@ int recv_sideband(const char *me, int in_stream, int out, int err) * line data actually contains something. */ if (brk > pf+1 + 1) { - char save[sf]; + char save[FIX_SIZE]; memcpy(save, buf + brk, sf); buf[brk + sf - 1] = buf[brk - 1]; - memcpy(buf + brk - 1, SUFFIX, sf); + memcpy(buf + brk - 1, suffix, sf); safe_write(err, buf, brk + sf); memcpy(buf + brk, save, sf); } else -- 2.30.2