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'.
58 lines
1.5 KiB
Text
58 lines
1.5 KiB
Text
# latex produces log output on stdout, which is
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# not really correct. Send it to stderr instead.
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exec >&2
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# We depend on both the .latex file and its .deps
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# file (which lists additional dependencies)
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redo-ifchange "$2.latex" "$2.deps"
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# Next, we have to depend on each dependency in
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# the .deps file.
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cat "$2.deps" | xargs redo-ifchange
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tmp="$2.tmp"
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rm -rf "$tmp"
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mkdir -p "$tmp"
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# latex generates eg. the table of contents by
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# using a list of references ($2.aux) generated
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# during its run. The first time, the table of
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# contents is empty, so we have to run again.
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# But then the table of contents is non-empty,
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# which might cause page numbers to change, and
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# so on. So we have to keep re-running until it
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# finally stops changing.
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touch "$tmp/$2.aux.old"
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ok=
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for i in $(seq 5); do
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latex --halt-on-error \
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--output-directory="$tmp" \
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--recorder \
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"$2.latex" </dev/null
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if diff "$tmp/$2.aux.old" \
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"$tmp/$2.aux" >/dev/null; then
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# .aux file converged, so we're done
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ok=1
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break
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fi
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echo
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echo "$0: $2.aux changed: try again (try #$i)"
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echo
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cp "$tmp/$2.aux" "$tmp/$2.aux.old"
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done
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if [ "$ok" = "" ]; then
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echo "$0: fatal: $2.aux did not converge!"
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exit 10
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fi
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# If the newly produced .dvi disappears, we need
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# to redo.
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redo-ifchange "$tmp/$2.dvi"
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# With --recorder, latex produces a list of files
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# it used during its run. Let's depend on all of
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# them, so if they ever change, we'll redo.
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grep ^INPUT "$tmp/$2.fls" |
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cut -d' ' -f2 |
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xargs redo-ifchange
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