diff options
| -rw-r--r-- | scripts/README.md | 28 | ||||
| -rwxr-xr-x | scripts/checkout_layer_hash.sh | 112 |
2 files changed, 118 insertions, 22 deletions
diff --git a/scripts/README.md b/scripts/README.md new file mode 100644 index 0000000..c461c36 --- /dev/null +++ b/scripts/README.md @@ -0,0 +1,28 @@ +# Scripts + +## checkout_layer_hash.sh + +A build helper for meta-ivi. + +This script extract the revision information for dependent layers (poky +and meta-openembedded) from the README of meta-ivi so that automated builds +are possible. + +Usage: + +Run in meta-ivi repository root (meta-ivi, not meta-ivi/meta-ivi). +The script assumes you have cloned poky and meta-openembedded inside +meta-ivi root which is normally not the case in a full system build - +then meta-ivi is in parallel with all other layers, but when building +the baseline only, we assume the build happens inside of meta-ivi dir. + + +Example: +$ cd meta-ivi + (the first one) +$ checkout_layer_hash.sh poky +$ checkout_layer_hash.sh meta-openembedded + +## Other scripts + +* See README.md in project root diff --git a/scripts/checkout_layer_hash.sh b/scripts/checkout_layer_hash.sh index a00dda4..93299d8 100755 --- a/scripts/checkout_layer_hash.sh +++ b/scripts/checkout_layer_hash.sh @@ -1,38 +1,106 @@ #!/bin/sh -# (C) 2015-12-12 Gunnar Andersson -# (C) 2016-10-25 Yong-iL Joh +# (C) Gunnar Andersson 2015-12-12 # License: MPLv2 +# This fetches information about layer dependencies +# as documented in meta-ivi README. +# revision, branch name, or sub layer name can be extracted + +README=README.md +DEBUG=false + + fail() { - echo "FAILED." + echo "*** FAILED ***" [ -n "$1" ] && echo "Message: " $@ exit 1 } -# Store the location of these scripts -_DIR=$(dirname "$0") -META_IVI=$(readlink -f $_DIR/..) -MYDIR=$(readlink -f $_DIR) +sanity_check_num_lines() { + what=$1 ; min=$2 ; max=$3 + + numlines="$(wc -l)" # < Reads from stdin + + if [ $numlines -lt $min ] ; then + fail "Sanity check: It looks like section $what has $numlines lines, and that is not enough. Please check what is wrong." + fi + + if [ $numlines -gt $max ] ; then + fail "Sanity check: It looks like section $what has $numlines lines, and that is more than expected. Please check what is wrong." + fi +} + +[ -f ./$README ] || fail "Cannot find README.md. (Current directory is $PWD)" + +get_layer_info() { + layer=$1 + what=$2 -layer=$1 -[ -z "$layer" ] && fail "No layer name given" + # Example README format: + # + #Layer Dependencies + #------------------ + # + #URI: git://git.yoctoproject.org/poky + #> branch: fido + #> revision: eb4a134a60e3ac26a48379675ad6346a44010339 + # + #URI: git://git.openembedded.org/meta-openembedded + #> layer: meta-oe + #> branch: fido + #> revision: 5b0305d9efa4b5692cd942586fb7aa92dba42d59 + + # Extract relevant section of the README + dependency_section=$( <$README \ + sed -n '/Layer Dependencies/,/known to work/p' |\ + egrep 'URI:|branch:|layer:|revision:') + + # Debug printouts... + $DEBUG && echo "OK, found the following layer info in dependency section:" + $DEBUG && cat <<EOT + $dependency_section +EOT + + cat <<EOT | sanity_check_num_lines "Layer Dependencies Section" 6 20 + $dependency_section +EOT + + # Get only this layer's information + layer_info=$( + cat <<EOT | sed -n "/URI:.*$layer/,/URI:/p" | sed 's/> //' | head -4 + $dependency_section +EOT + ) + + # Get value for item "what" (what = revision, branch, ...) + value=$( + cat <<EOT | grep "$what" | awk '{print $2}' + $layer_info +EOT + ) + + # Check again - now only one line expected... + cat <<EOT | sanity_check_num_lines "$what information for $layer" 1 1 + $value +EOT + + # OK, this should be it + echo $value + +} + +checkoutlayer=$1 +[ -z "$checkoutlayer" ] && { echo "Usage: $0 <layername, e.g. poky>" ; exit 1 ; } # Extract revision from README in meta-ivi -cd "$META_IVI" || fail "Can't cd to meta-ivi directory" -revision=$($MYDIR/get_layer_info_from_README.sh $layer revision) -uri=$($MYDIR/get_layer_info_from_README.sh $layer URI) +revision=$(get_layer_info $checkoutlayer revision) # Fail if we could not fetch revision [ -z "$revision" ] && fail "Revision extracted from README was empty" -# Checkout the right revision in this layer -if [ ! -d "$META_IVI/../$layer/.git" ]; then - if [ -e "$META_IVI/../$layer" ]; then - rm -rf "$META_IVI/../$layer" - else - cd "$META_IVI/.." - git clone $uri - fi -fi -cd "$META_IVI/../$layer" || fail "Can't cd to layer directory ($layer)" +# Checkout the right revision in this layer. We expect the layer, e.g. +# poky to be found inside the root of meta-ivi, that is the $PWD when +# this script is run. (Not true on full system builds, but typically +# when building baseline only) +cd ../"$checkoutlayer" || fail "Can't cd to layer directory ($checkoutlayer)" git checkout $revision |