diff options
author | Patryk Niedźwiedziński <pniedzwiedzinski19@gmail.com> | 2021-06-15 23:30:05 +0200 |
---|---|---|
committer | Patryk Niedźwiedziński <pniedzwiedzinski19@gmail.com> | 2021-06-15 23:30:05 +0200 |
commit | d831434e95c6a3b33a8af04e630d34f078d26e4f (patch) | |
tree | 93965830662798a4c8674634110eac88bdb3a6ab /man/man1/redo-ifcreate.1 | |
download | spiewnik-d831434e95c6a3b33a8af04e630d34f078d26e4f.tar.gz spiewnik-d831434e95c6a3b33a8af04e630d34f078d26e4f.zip |
Init
Diffstat (limited to 'man/man1/redo-ifcreate.1')
-rw-r--r-- | man/man1/redo-ifcreate.1 | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/man/man1/redo-ifcreate.1 b/man/man1/redo-ifcreate.1 new file mode 100644 index 0000000..f7d803e --- /dev/null +++ b/man/man1/redo-ifcreate.1 @@ -0,0 +1,94 @@ +.de URL +\\$2 \(laURL: \\$1 \(ra\\$3 +.. +.if \n[.g] .mso www.tmac +.TH REDO-IFCREATE 1 +.SH NAME +redo-ifcreate \- rebuild target files when source files are created +.SH SYNOPSIS +.B redo-ifcreate +.I target +.RI [ target ]... +.SH DESCRIPTION +.IR redo(1) +is a tool for building files and for rebuilding them if any of their dependencies have changed. +.IR redo-ifcreate , +when invoked from a dofile, adds non-existence dependencies of the current +.IR redo(1) +target on all files given as arguments. This means that the current target will be rebuilt on invocation of +.IR redo(1) +if any of the files given as arguments to +.IR redo-ifcreate +exist. If an argument to +.IR redo-ifcreate +exists, it exits with a status code indicating failure. +.SH EXAMPLES +.PP +Consider the following two files +.IR all.do +and +.IR b.do : +.TP +.I all.do +.br +#!/bin/sh +.br +redo-ifchange b +.TP +.I b.do +.br +#!/bin/sh +.br +if [ ! -e c ]; then +.br + redo-ifcreate c +.br +fi +.br +date +%s +.PP +Invoking +.IR redo(1) +in a directory with these files that does not contain a file named +.I c +will build a file named +.I b +containing a timestamp. The next time +.IR redo(1) +is invoked, it will only rebuild +.I b +if a file named +.I c +was created since the last build. This can be verified by invoking +.IR redo(1) +repeatedly and examining the timestamp +.IR b +after each invocation, then creating a file named +.IR c , +invoking +.IR redo(1) +again and examining the timestamp again. +.SH HISTORY +.I redo-ifcreate +was designed by D. J. Bernstein and implemented by Nils Dagsson Moskopp. +.TP +.URL https://cr.yp.to/redo/honest-nonfile.html "Target files depend on nonexistent files" " by D. J. Bernstein" +.SH AUTHOR +.I redo-ifcreate +and this man page were written by Nils Dagsson Moskopp. +.SH COPYRIGHT +Copyright © 2014-2016 Nils Dagsson Moskopp. +License AGPLv3+: GNU Affero GPL version 3 or later <http://www.gnu.org/licenses/agpl-3.0.html>. +This is free software: you are free to create and redistribute it. There is NO WARRANTY, to the extent permitted by law. +.SH SEE ALSO +.IR redo(1) , +.IR redo-always(1) , +.IR redo-dot(1) , +.IR redo-ifchange(1) , +.IR redo-ood(1) , +.IR redo-sources(1) , +.IR redo-stamp(1) , +.IR redo-targets(1) +.SH BUGS +.I redo-ifcreate +may break if a source filename contains a tab or newline character. |