[set] Guess product and board config from short names
This guesses the product and board configurations based on short names.
The heuristic it uses is that it matches the first entry of the form
$petal/{products,boards}/$shortname.gni starting at the current guessed
petal and going down through the petals in order until it finds a
matching file, or printing an error and exiting it if can't. This is
hopefully more ergonomic for developers than knowing exactly which
repository defines which product and board set.
Test: 'fx set x64 --product base --board frank' with various checkout
types.
Change-Id: I89c747b952bb89ca27d46c38c934f56d21dc5bd0
diff --git a/devshell/set b/devshell/set
index 53861bf..aa80085 100755
--- a/devshell/set
+++ b/devshell/set
@@ -122,6 +122,51 @@
source "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"/lib/vars.sh
+function guess_config_within_layer {
+ local config_type="$1"
+ local config_name="$2"
+ local __resultvar="$3"
+
+ # Guess the petal we're using. We'll search at this petal and below for
+ # config matching the type and short name
+ local current_petal
+ current_petal="$(${FUCHSIA_DIR}/build/gn/guess_layer.py)" || return 1
+ readonly current_petal
+
+ # Compute a lookup order starting at the current petal going down.
+ local petal_order="${current_petal}"
+ case $current_petal in
+ vendor/*)
+ petal_order="${petal_order},topaz,peridot,garnet"
+ ;;
+ "topaz")
+ petal_order="${petal_order},peridot,garnet"
+ ;;
+ "peridot")
+ petal_order="${petal_order},garnet"
+ ;;
+ esac
+ readonly petal_order
+
+ # Look through petals in this order to find configs with matching names.
+ IFS=,
+ local petal
+ for petal in $petal_order; do
+ guessed_config="${petal}/${config_type}/${config_name}.gni"
+ if [[ -a "${FUCHSIA_DIR}/${guessed_config}" ]]; then
+ echo "Guessing ${config_type} config ${guessed_config}"
+ eval "${__resultvar}"="${guessed_config}"
+ return
+ fi
+ done
+
+ echo "Could not guess a ${config_type} configuration matching \"${config_name}\""
+ echo "Please specify the full path from the root of the checkout such as"
+ echo "garnet/${config_type}/base.gni"
+ exit 1
+}
+
+
function main {
fx-standard-switches "$@"
set -- "${FX_ARGV[@]}"
@@ -415,6 +460,11 @@
fi
for board in ${boards[@]}; do
+ if [[ ! -a "${FUCHSIA_DIR}/${board}" ]]; then
+ local guessed_board=""
+ guess_config_within_layer "boards" "${board}" guessed_board
+ board="${guessed_board}"
+ fi
gn_args+=" import(\"//${board}\")"
done
@@ -426,6 +476,11 @@
fi
for product in ${products[@]}; do
+ if [[ ! -a "${FUCHSIA_DIR}/${product}" ]]; then
+ local guessed_product=""
+ guess_config_within_layer "products" "${product}" guessed_product
+ product="${guessed_product}"
+ fi
gn_args+=" import(\"//${product}\")"
done
