diff options
Diffstat (limited to 'pkgs/build-support/setup-hooks/make-binary-wrapper/make-binary-wrapper.sh')
-rw-r--r-- | pkgs/build-support/setup-hooks/make-binary-wrapper/make-binary-wrapper.sh | 64 |
1 files changed, 40 insertions, 24 deletions
diff --git a/pkgs/build-support/setup-hooks/make-binary-wrapper/make-binary-wrapper.sh b/pkgs/build-support/setup-hooks/make-binary-wrapper/make-binary-wrapper.sh index 6b8f5d60eb65f..5f759d323cf62 100644 --- a/pkgs/build-support/setup-hooks/make-binary-wrapper/make-binary-wrapper.sh +++ b/pkgs/build-support/setup-hooks/make-binary-wrapper/make-binary-wrapper.sh @@ -15,17 +15,19 @@ assertExecutable() { # makeWrapper EXECUTABLE OUT_PATH ARGS # ARGS: -# --argv0 NAME : set the name of the executed process to NAME -# (if unset or empty, defaults to EXECUTABLE) -# --inherit-argv0 : the executable inherits argv0 from the wrapper. -# (use instead of --argv0 '$0') -# --set VAR VAL : add VAR with value VAL to the executable's environment -# --set-default VAR VAL : like --set, but only adds VAR if not already set in -# the environment -# --unset VAR : remove VAR from the environment -# --chdir DIR : change working directory (use instead of --run "cd DIR") -# --add-flags FLAGS : add FLAGS to invocation of executable -# TODO(@ncfavier): --append-flags +# --argv0 NAME : set the name of the executed process to NAME +# (if unset or empty, defaults to EXECUTABLE) +# --inherit-argv0 : the executable inherits argv0 from the wrapper. +# (use instead of --argv0 '$0') +# --set VAR VAL : add VAR with value VAL to the executable's environment +# --set-default VAR VAL : like --set, but only adds VAR if not already set in +# the environment +# --unset VAR : remove VAR from the environment +# --chdir DIR : change working directory (use instead of --run "cd DIR") +# --add-flags ARGS : prepend ARGS to the invocation of the executable +# (that is, *before* any arguments passed on the command line) +# --append-flags ARGS : append ARGS to the invocation of the executable +# (that is, *after* any arguments passed on the command line) # --prefix ENV SEP VAL : suffix/prefix ENV with VAL, separated by SEP # --suffix @@ -83,7 +85,7 @@ makeDocumentedCWrapper() { # makeCWrapper EXECUTABLE ARGS # ARGS: same as makeWrapper makeCWrapper() { - local argv0 inherit_argv0 n params cmd main flagsBefore flags executable length + local argv0 inherit_argv0 n params cmd main flagsBefore flagsAfter flags executable length local uses_prefix uses_suffix uses_assert uses_assert_success uses_stdio uses_asprintf executable=$(escapeStringLiteral "$1") params=("$@") @@ -150,6 +152,13 @@ makeCWrapper() { n=$((n + 1)) [ $n -ge "$length" ] && main="$main#error makeCWrapper: $p takes 1 argument"$'\n' ;; + --append-flags) + flags="${params[n + 1]}" + flagsAfter="$flagsAfter $flags" + uses_assert=1 + n=$((n + 1)) + [ $n -ge "$length" ] && main="$main#error makeCWrapper: $p takes 1 argument"$'\n' + ;; --argv0) argv0=$(escapeStringLiteral "${params[n + 1]}") inherit_argv0= @@ -165,8 +174,7 @@ makeCWrapper() { ;; esac done - # shellcheck disable=SC2086 - [ -z "$flagsBefore" ] || main="$main"${main:+$'\n'}$(addFlags $flagsBefore)$'\n'$'\n' + [[ -z "$flagsBefore" && -z "$flagsAfter" ]] || main="$main"${main:+$'\n'}$(addFlags "$flagsBefore" "$flagsAfter")$'\n'$'\n' [ -z "$inherit_argv0" ] && main="${main}argv[0] = \"${argv0:-${executable}}\";"$'\n' main="${main}return execv(\"${executable}\", argv);"$'\n' @@ -184,21 +192,25 @@ makeCWrapper() { } addFlags() { - local result n flag flags var + local n flag before after var + # shellcheck disable=SC2086 + before=($1) after=($2) var="argv_tmp" - flags=("$@") - for ((n = 0; n < ${#flags[*]}; n += 1)); do - flag=$(escapeStringLiteral "${flags[$n]}") - result="$result${var}[$((n+1))] = \"$flag\";"$'\n' - done - printf '%s\n' "char **$var = calloc($((n+1)) + argc, sizeof(*$var));" + printf '%s\n' "char **$var = calloc(${#before[@]} + argc + ${#after[@]} + 1, sizeof(*$var));" printf '%s\n' "assert($var != NULL);" printf '%s\n' "${var}[0] = argv[0];" - printf '%s' "$result" + for ((n = 0; n < ${#before[@]}; n += 1)); do + flag=$(escapeStringLiteral "${before[n]}") + printf '%s\n' "${var}[$((n + 1))] = \"$flag\";" + done printf '%s\n' "for (int i = 1; i < argc; ++i) {" - printf '%s\n' " ${var}[$n + i] = argv[i];" + printf '%s\n' " ${var}[${#before[@]} + i] = argv[i];" printf '%s\n' "}" - printf '%s\n' "${var}[$n + argc] = NULL;" + for ((n = 0; n < ${#after[@]}; n += 1)); do + flag=$(escapeStringLiteral "${after[n]}") + printf '%s\n' "${var}[${#before[@]} + argc + $n] = \"$flag\";" + done + printf '%s\n' "${var}[${#before[@]} + argc + ${#after[@]}] = NULL;" printf '%s\n' "argv = $var;" } @@ -366,6 +378,10 @@ formatArgs() { formatArgsLine 1 "$@" shift 1 ;; + --append-flags) + formatArgsLine 1 "$@" + shift 1 + ;; --argv0) formatArgsLine 1 "$@" shift 1 |