f6fe00db5c
It's time to start preparing for a version of redo that doesn't work unless we build it first (because it will rely on C modules, and eventually be rewritten in C altogether). To get rolling, remove the old-style symlinks to the main programs, and rename those programs from redo-*.py to redo/cmd_*.py. We'll also move all library functions into the redo/ dir, which is a more python-style naming convention. Previously, install.do was generating wrappers for installing in /usr/bin, which extend sys.path and then import+run the right file. This made "installed" redo work quite differently from running redo inside its source tree. Instead, let's always generate the wrappers in bin/, and not make anything executable except those wrappers. Since we're generating wrappers anyway, let's actually auto-detect the right version of python for the running system; distros can't seem to agree on what to call their python2 binaries (sigh). We'll fill in the right #! shebang lines. Since we're doing that, we can stop using /usr/bin/env, which will a) make things slightly faster, and b) let us use "python -S", which tells python not to load a bunch of extra crap we're not using, thus improving startup times. Annoyingly, we now have to build redo using minimal/do, then run the tests using bin/redo. To make this less annoying, we add a toplevel ./do script that knows the right steps, and a Makefile (whee!) for people who are used to typing 'make' and 'make test' and 'make clean'.
43 lines
1.1 KiB
Markdown
43 lines
1.1 KiB
Markdown
# NAME
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redo-ifcreate - rebuild the current target if source files are created
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# SYNOPSIS
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redo-ifcreate [sources...]
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# DESCRIPTION
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Normally redo-ifcreate is run from a .do file that has been
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executed by `redo`(1). See `redo`(1) for more details.
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redo-ifcreate takes a list of nonexistent files (*sources*)
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and adds them as dependencies to the current target (the
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one calling redo-ifcreate). If any of those files are
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created in the future, the target will be marked as needing
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to be rebuilt.
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If one of the given files exists at the time redo-ifcreate
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is called, it will return a nonzero exit code.
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If you want to declare dependencies on files that already
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exist, use `redo-ifchange`(1) instead.
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# REDO
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Part of the `redo`(1) suite.
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# CREDITS
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The original concept for `redo` was created by D. J.
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Bernstein and documented on his web site
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(http://cr.yp.to/redo.html). This independent implementation
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was created by Avery Pennarun and you can find its source
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code at http://github.com/apenwarr/redo.
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# SEE ALSO
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`redo`(1), `redo-ifchange`(1), `redo-always`(1), `redo-stamp`(1)
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