Cody Boone Ferguson
ff2bb17212
Use of awk(1) is actually overkill and there is already enough overkill if no location is specified: it might nuke the world or the US, depending on submitted entry or alt code (provided in remarks of the author)! :-)
44 lines
1.5 KiB
Bash
Executable File
44 lines
1.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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#
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# whereami.alt - a wrapper script to westley.alt.c that checks first the columns
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# of the terminal, exiting if < 80 and otherwise try compiling westley.alt.c
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# (with make) and then if is already compiled or ends up being compiled it will
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# be run with the specified args to this program.
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#
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# It is an error to not specify two args but it is not an error to specify args
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# that are not numbers. The atoi(3) function typically returns 0 in that case
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# which westley.alt.c uses.
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#
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# The reason to use this wrapper is because westley.alt.c needs at least 80
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# columns to show the output right. Previously it required 80 column wrapping
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# but in 2023 this limitation was removed, allowing it to work as long as there
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# are at least 80 columns.
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# make sure there are at least two args
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if [[ "$#" -lt 2 ]]; then
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echo "usage: $0 lat long" 1>&2
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exit 1
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fi
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# make sure CC is set so that when we do make CC="$CC" it isn't empty. Doing it
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# this way allows us to have the user specify a different compiler in an easy
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# way.
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[[ -z "$CC" ]] && CC="cc"
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# try getting the columns the simple way first: tput cols
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if ! COLUMNS="$(tput cols)"; then
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# if tput failed for any reason try stty(1) with cut(1).
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COLUMNS="$(stty size|cut -f2 -d' ')"
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fi
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if [[ "$COLUMNS" -lt 80 ]]; then
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echo "Your terminal must be at least 80" 1>&2
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echo "columns wide echo but yours is only" 1>&2
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echo "$COLUMNS, sorry." 1>&2
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exit 2
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fi
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make CC="$CC" everything >/dev/null || exit 1
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./westley.alt "$1" "$2"
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