From: Timo Buhrmester <fstd.lkml@gmail.com>
To: zsh-workers@zsh.org
Subject: [patch] "which"-builtin writes diagnostics to stdout
Date: Sun, 30 Aug 2015 05:06:14 +0200 [thread overview]
Message-ID: <20150830030614.GB18893@frozen.localdomain> (raw)
[-- Attachment #1: Type: text/plain, Size: 1416 bytes --]
When invoking the `which` builtin for something that does not exist, like:
| % which doesnotexist
| doesnotexist not found
the "doesnotexist not found" message goes to standard output, rather than standard error.
This is of course wrong, and particularly nasty in command-substitution, where the diagnostic message might end up in a variable, be given to an external program as an arguemnt or even be be fed through a pipeline.
The below (and also attached) patch fixes that.
Cheers,
Timo Buhrmester
---------8<------------------------------------------------
diff --git a/Src/builtin.c b/Src/builtin.c
index 97022ad..774390a 100644
--- a/Src/builtin.c
+++ b/Src/builtin.c
@@ -3578,8 +3578,9 @@ bin_whence(char *nam, char **argv, Options ops, int func)
}
}
if (!informed && (wd || v || csh)) {
- zputs(*argv, stdout);
- puts(wd ? ": none" : " not found");
+ zputs(*argv, stderr);
+ fputs(wd ? ": none" : " not found", stderr);
+ fputc('\n', stderr);
returnval = 1;
}
popheap();
@@ -3598,8 +3599,11 @@ bin_whence(char *nam, char **argv, Options ops, int func)
informed = 1;
} else {
/* Not found at all. */
- if (v || csh || wd)
- zputs(*argv, stdout), puts(wd ? ": none" : " not found");
+ if (v || csh || wd) {
+ zputs(*argv, stderr);
+ fputs(wd ? ": none" : " not found", stderr);
+ fputc('\n', stderr);
+ }
returnval = 1;
}
}
[-- Attachment #2: zsh-which-stderr.patch --]
[-- Type: text/plain, Size: 847 bytes --]
diff --git a/Src/builtin.c b/Src/builtin.c
index 97022ad..774390a 100644
--- a/Src/builtin.c
+++ b/Src/builtin.c
@@ -3578,8 +3578,9 @@ bin_whence(char *nam, char **argv, Options ops, int func)
}
}
if (!informed && (wd || v || csh)) {
- zputs(*argv, stdout);
- puts(wd ? ": none" : " not found");
+ zputs(*argv, stderr);
+ fputs(wd ? ": none" : " not found", stderr);
+ fputc('\n', stderr);
returnval = 1;
}
popheap();
@@ -3598,8 +3599,11 @@ bin_whence(char *nam, char **argv, Options ops, int func)
informed = 1;
} else {
/* Not found at all. */
- if (v || csh || wd)
- zputs(*argv, stdout), puts(wd ? ": none" : " not found");
+ if (v || csh || wd) {
+ zputs(*argv, stderr);
+ fputs(wd ? ": none" : " not found", stderr);
+ fputc('\n', stderr);
+ }
returnval = 1;
}
}
next reply other threads:[~2015-08-30 3:06 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-30 3:06 Timo Buhrmester [this message]
2015-08-30 5:15 ` Bart Schaefer
2015-08-30 5:26 ` Timo Buhrmester
2015-09-01 6:04 ` Bart Schaefer
2015-09-01 6:12 ` Mikael Magnusson
2015-09-01 23:16 ` Bart Schaefer
2015-09-02 8:53 ` Peter Stephenson
2015-09-02 13:48 ` Vincent Lefevre
2015-09-01 13:14 ` Timo Buhrmester
2015-09-01 13:45 ` Peter Stephenson
2015-09-01 23:10 ` Bart Schaefer
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