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Add the option to source setpdy.sh directly #16

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Add the option to source setpdy.sh directly #16

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2b460e6
Add the capability to source setpdy directly
DavidHuber-NOAA Apr 23, 2026
e495c66
Use export instead of declare
DavidHuber-NOAA Apr 23, 2026
6aaabec
Cleanup setpdy.sh
DavidHuber-NOAA Apr 23, 2026
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38 changes: 32 additions & 6 deletions ush/setpdy.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@
# PDYp2, ..., PDYp7.
# History: Jul 27, 1998 - Implement new script
# sep 17, 2015 - Add ability to specify number of dates
# Apr 23, 2026 - Add ability to source setpdy.sh directly
# Usage:
# setpdy.sh
# Generate PDY script with PDYm7 to PDYp7 variables
Expand Down Expand Up @@ -65,18 +66,43 @@ export err=$?; err_chk
DATElne_plus=$(finddate.sh $PDY s+${dates_after_PDY})
export err=$?; err_chk

# Detect if setpdy is being sourced. If sourced, export PDY variables directly. Otherwise, write a PDY file to be sourced.
(return 0 2>/dev/null) && sourced=1 || sourced=0

# Cut date-line to form PDY variables
if [ -f PDY ]; then rm PDY; fi

for d in $(seq $dates_before_PDY -1 1); do
# cut the date starting at position ($d-1)*9 from date-line
echo "export PDYm${d}=${DATElne_minus:((($d-1)*9)):8}" >>PDY
lhs=PDYm${d}
rhs=${DATElne_minus:((($d-1)*9)):8}
if [ $sourced -eq 1 ]; then
export ${lhs}=${rhs}
else
echo "export ${lhs}=${rhs}" >>PDY
fi
done
echo "export PDY=$PDY" >>PDY

lhs=PDY
rhs=$PDY
if [ $sourced -eq 1 ]; then
export ${lhs}=${rhs}
else
echo "export ${lhs}=${rhs}" >>PDY
fi

for d in $(seq $dates_after_PDY); do
# cut the date starting at position ($d-1)*9 from date-line
echo "export PDYp${d}=${DATElne_plus:((($d-1)*9)):8}" >>PDY
lhs=PDYp${d}
rhs=${DATElne_plus:((($d-1)*9)):8}
if [ $sourced -eq 1 ]; then
export ${lhs}=${rhs}
else
echo "export ${lhs}=${rhs}" >>PDY
fi
done

chmod u+x PDY

echo "Source PDY script to export PDYm${dates_before_PDY}, ..., PDY, ..., PDYp${dates_after_PDY} variables."
if [ $sourced -eq 0 ]; then
chmod u+x PDY
echo "Source PDY script to export PDYm${dates_before_PDY}, ..., PDY, ..., PDYp${dates_after_PDY} variables."
fi