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Separate out indentation responsibility to indent4 in makeCWrapper using awk.

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Generated code no longer needs to worry about its own indent level in the output.
This commit is contained in:
Tobias Bergkvist 2021-12-07 17:42:54 +01:00
parent 2b5a2d4a8e
commit 7cf1aa102a
1 changed files with 36 additions and 30 deletions
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14
pkgs/build-support/setup-hooks/make-binary-wrapper.sh
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@ -150,8 +150,8 @@ makeCWrapper() {
done
# shellcheck disable=SC2086
[ -z "$flagsBefore" ] || main="$main"${main:+$'\n'}$(addFlags $flagsBefore)$'\n'$'\n'
[ -z "$inherit_argv0" ] && main="$main argv[0] = \"${argv0:-${executable}}\";"$'\n'
main="$main return execv(\"${executable}\", argv);"$'\n'
[ -z "$inherit_argv0" ] && main="${main}argv[0] = \"${argv0:-${executable}}\";"$'\n'
main="${main}return execv(\"${executable}\", argv);"$'\n'
[ -z "$uses_asprintf" ] || printf '%s\n' "#define _GNU_SOURCE /* See feature_test_macros(7) */"
printf '%s\n' "#include <unistd.h>"
@ -162,8 +162,8 @@ makeCWrapper() {
[ -z "$uses_prefix" ] || printf '\n%s\n' "$(setEnvPrefixFn)"
[ -z "$uses_suffix" ] || printf '\n%s\n' "$(setEnvSuffixFn)"
printf '\n%s' "int main(int argc, char **argv) {"
printf '\n%s' "$main"
printf '%s\n' "}"
printf '\n%s' "$(indent4 "$main")"
printf '\n%s\n' "}"
}
addFlags() {
@ -249,6 +249,12 @@ escapeStringLiteral() {
printf '%s' "$result"
}
# Indents every non-empty line by 4 spaces. To avoid trailing whitespace, we don't indent empty lines
# indent4 TEXT_BLOCK
indent4() {
printf '%s' "$1" | awk '{ if ($0 != "") { print " "$0 } else { print $0 }}'
}
assertValidEnvName() {
case "$1" in
*=*) printf '\n%s\n' "#error Illegal environment variable name \`$1\` (cannot contain \`=\`)";;