view contrib/rewrite-log @ 8311:e0eb03bfa5af

manpage build: fail early when xmlto is not available

When we try to build manpages with xmlto and sed, but xmlto is
missing fail at the xmlto stage.  Otherwise, one may run `cd doc;
make' and miss the warnings like:

  xmlto: not found
  sed: hg.1: No such file or directory

and end up with empty files installed as manpages.

#!/usr/bin/env python
import sys, os
from mercurial import revlog, transaction, node, util

f = sys.argv[1]

r1 = revlog.revlog(util.opener(os.getcwd(), audit=False), f + ".i", f + ".d")
r2 = revlog.revlog(util.opener(os.getcwd(), audit=False), f + ".i2", f + ".d2")

tr = transaction.transaction(sys.stderr.write, open, "journal")

for i in xrange(r1.count()):
    n = r1.node(i)
    p1, p2 = r1.parents(n)
    l = r1.linkrev(n)
    t = r1.revision(n)
    n2 = r2.addrevision(t, tr, l, p1, p2)
tr.close()

os.rename(f + ".i", f + ".i.old")
os.rename(f + ".d", f + ".d.old")
os.rename(f + ".i2", f + ".i")
os.rename(f + ".d2", f + ".d")