| Heinrich Schuchardt | 98f01cf | 2020-12-31 23:16:46 +0100 | [diff] [blame] | 1 | #!/bin/sh |
| 2 | # SPDX-License-Identifier: GPL-2.0+ |
| 3 | # |
| 4 | # Figure out if we should follow a specific parallelism from the make |
| 5 | # environment (as exported by scripts/jobserver-exec), or fall back to |
| 6 | # the "auto" parallelism when "-jN" is not specified at the top-level |
| 7 | # "make" invocation. |
| 8 | |
| 9 | sphinx="$1" |
| 10 | shift || true |
| 11 | |
| 12 | parallel="$PARALLELISM" |
| 13 | if [ -z "$parallel" ] ; then |
| 14 | # If no parallelism is specified at the top-level make, then |
| 15 | # fall back to the expected "-jauto" mode that the "htmldocs" |
| 16 | # target has had. |
| 17 | auto=$(perl -e 'open IN,"'"$sphinx"' --version 2>&1 |"; |
| 18 | while (<IN>) { |
| 19 | if (m/([\d\.]+)/) { |
| 20 | print "auto" if ($1 >= "1.7") |
| 21 | } |
| 22 | } |
| 23 | close IN') |
| 24 | if [ -n "$auto" ] ; then |
| 25 | parallel="$auto" |
| 26 | fi |
| 27 | fi |
| 28 | # Only if some parallelism has been determined do we add the -jN option. |
| 29 | if [ -n "$parallel" ] ; then |
| 30 | parallel="-j$parallel" |
| 31 | fi |
| 32 | |
| 33 | exec "$sphinx" $parallel "$@" |