ct-ng.comp
author Michael Hope <michael.hope@linaro.org>
Thu Sep 29 12:40:42 2011 +1300 (2011-09-29)
changeset 2695 f2495884ca3e
parent 1876 a6a4beab3125
child 2988 a57b8a45ea26
permissions -rw-r--r--
config: add a 'auto' value for the number of parallel jobs

When CT_PARALLEL_JOBS is -1, set the number of parallel jobs to the
number of online CPUs + 1. Update documentation to match.

I find this useful when building in the cloud. You can use the same
.config file and have the build adapt to the number of processors
available. Limited testing shows that NCPUS+1 is faster than NCPUS+0
or NCPUS+2.

Signed-off-by: Michael Hope <michael.hope@linaro.org>
     1 # To be sourced
     2 
     3 _ct-ng () {
     4     local cur prev samples show_samples actions steps start_steps stop_steps ct_ng_opts vars
     5     COMPREPLY=()
     6     cur=$(_get_cword)
     7     prev=${COMP_WORDS[COMP_CWORD-1]}
     8 
     9     samples=$( "${COMP_WORDS[0]}" list-samples-short 2>/dev/null )
    10     show_samples=$(echo "${samples}" |sed -r -e 's/(^| )/\1show-/g;')
    11     build_samples=$(echo "${samples}" |sed -r -e 's/(^| )/\1build-/g;')
    12 
    13     steps=$(${COMP_WORDS[0]} list-steps 2>/dev/null |awk '$1 == "-" { print $2; }')
    14     start_steps=$(echo "${steps}" |sed -r -e 's/($| )/\1+/;')
    15     stop_steps=$(echo "${steps}" |sed -r -e 's/(^| )/+\1/;')
    16 
    17     actions='help menuconfig oldconfig saveconfig extractconfig
    18              build build. build-all build-all.
    19              wiki-samples list-samples list-samples-short list-steps
    20              show-tuple show-all show-config
    21              clean distclean updatetools
    22              tarball version'
    23 
    24     vars="RESTART= STOP= PREFIX= V="
    25 
    26     ct_ng_opts="${samples} ${show_samples} ${build_samples}
    27                 ${steps} ${start_steps} ${stop_steps}
    28                 ${actions} ${vars}"
    29 
    30     COMPREPLY=($(compgen -W "${ct_ng_opts}" -- "${cur}"))
    31     return 0
    32 }
    33 complete -F _ct-ng ct-ng