Use set -e, -x in shell process, handle exit status correctly

This makes the default behavior like make(1), but it is configurable.
Furthermore, it is still a single shell process, which is arguably
a benefit.

1 files changed, 4 insertions, 12 deletions

diff --git a/build.1 b/build.1
index cf66324..10ae999 100644
--- a/build.1
+++ b/build.1
@@ -77,17 +77,9 @@ This means that you can keep state across multiple commands.
 Note that all commands are executed
 regardless of the exit status of previous commands.
 .Pp
+If a command fails,
 .Nm
-exits with a positive status if a command failed.
-Note that it checks the status
-of the entire command sent to the shell,
-not the individual command lines.
-To emulate the behavior of
-.Xr make 1 ,
-which fails if any individual command line fails,
-you can use
-.Ql set -e
-in your command line.
+exits with a positive status and aborts the build process.
 .
 .Sh EXAMPLES
 .Pp
@@ -120,8 +112,8 @@ Assuming that the file
 starts with the following text,
 .Bd -literal -offset indent
 \&.\\" This document is built with the following shell commands:
-\&.\\"    $ refer -p refs doc.t | troff -ms | dpost > doc.ps &&
-\&.\\"    $ ps2pdf doc.ps > doc.pdf &&
+\&.\\"    $ refer -p refs doc.t | troff -ms | dpost > doc.ps
+\&.\\"    $ ps2pdf doc.ps > doc.pdf
 \&.\\"    $ rm doc.ps
 \&.
 \&.\\" Apart from this file, it depends on the following files: