convert: quote filter names in error messages

Git filter driver commands with spaces (e.g. `filter.sh foo`) are hard
to read in error messages. Quote them to improve the readability.

Signed-off-by: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/convert.c b/convert.c
index 077f5e601e3283b7b2566bff791290209be4694e..986c23975bb6fbed1d98d042acdc9a852bd6b9fa 100644 (file)
--- a/convert.c
+++ b/convert.c
@@ -412,7 +412,7 @@ static int filter_buffer_or_fd(int in, int out, void *data)
        child_process.out = out;
 
        if (start_command(&child_process))
-               return error("cannot fork to run external filter %s", params->cmd);
+               return error("cannot fork to run external filter '%s'", params->cmd);
 
        sigchain_push(SIGPIPE, SIG_IGN);
 
@@ -430,13 +430,13 @@ static int filter_buffer_or_fd(int in, int out, void *data)
        if (close(child_process.in))
                write_err = 1;
        if (write_err)
-               error("cannot feed the input to external filter %s", params->cmd);
+               error("cannot feed the input to external filter '%s'", params->cmd);
 
        sigchain_pop(SIGPIPE);
 
        status = finish_command(&child_process);
        if (status)
-               error("external filter %s failed %d", params->cmd, status);
+               error("external filter '%s' failed %d", params->cmd, status);
 
        strbuf_release(&cmd);
        return (write_err || status);
@@ -477,15 +477,15 @@ static int apply_filter(const char *path, const char *src, size_t len, int fd,
                return 0;       /* error was already reported */
 
        if (strbuf_read(&nbuf, async.out, len) < 0) {
-               error("read from external filter %s failed", cmd);
+               error("read from external filter '%s' failed", cmd);
                ret = 0;
        }
        if (close(async.out)) {
-               error("read from external filter %s failed", cmd);
+               error("read from external filter '%s' failed", cmd);
                ret = 0;
        }
        if (finish_async(&async)) {
-               error("external filter %s failed", cmd);
+               error("external filter '%s' failed", cmd);
                ret = 0;
        }