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-rw-r--r--build.subr253
1 files changed, 161 insertions, 92 deletions
diff --git a/build.subr b/build.subr
index 47882838..fc6ee404 100644
--- a/build.subr
+++ b/build.subr
@@ -1,86 +1,149 @@
#
# . ./build.vars and set -o errexit are assumed.
+# See warning at the top of build.vars.
#
-TIMESTAMP_FMT="${TIMESTAMP_FMT:-"%Y/%m/%d %H:%M:%S"}";
+date() { command date +"${1:-${TIMESTAMP_FMT}}"; };
+fetch_git() { [ -d ${1} ] && (cd ${1} && git pull origin main) || git clone ${3} ${2} ${1}; };
+get_basename() { set -- $(get_name_without_slash ${1}); echo "${1##*/}"; };
+get_var() { eval echo \${${1}}; }; # XXX
+set_var() { eval ${1}=\"${2}\"; }; # XXX
+get_name_without_slash() { while [ "x${1%/}" != "x${1}" ]; do set -- ${1%/}; done; echo ${1}; };
+get_postfix_lrg() { echo "${1##*${2}}"; };
+get_prefix_lrg() { echo "${1%%${2}*}"; };
+get_postfix() { echo "${1#*${2}}"; };
+get_prefix() { echo "${1%${2}*}"; };
+match_any() { [ "x${1#*${2}*}" != "x${1}" ]; };
+match_start() { [ "x${1#${2}}" != "x${1}" ]; };
+push_IFS() { _IFS="${IFS}"; IFS="${1}"; };
+pop_IFS() { IFS="${_IFS}"; unset _IFS; };
+set_build_dir() { BUILD_DIR=${1}-${2}-${TARGET}; };
+split() { push_IFS "${1}"; set -- ${2}; pop_IFS; echo "${*}"; };
+unsplit() { push_IFS "${1}"; shift; set -- "${@}"; echo "${*}"; pop_IFS; };
+
+rm_if_exists() {
+ set_flag_vars_from_args "$@"; shift ${_nshift:-0};
+ [ -d ${1} ] && rm -rf ${1}; [ -f ${1} ] && rm -f ${1};
+ [ ${_arg_m:-0} -eq 1 ] && mkdir ${1};
+ [ ${_arg_c:-0} -eq 1 ] && cd ${1};
+ unset_flag_vars_from_args;
+};
+
+set_flag_vars_from_args() {
+ unset _flag_vars _nshift;
+ while [ ${#} -gt 1 ]; do
+ if [ "x${1%[a-z]}" = "x-" ]; then
+ set_var _arg_${1#-} 1;
+ _flag_vars="${_flag_vars:+${_flag_vars} }_arg_${1#-}";
+ : $((_nshift+=1));
+ fi; shift;
+ done;
+};
+unset_flag_vars_from_args() {
+ set -- ${_flag_vars}; while [ ${#} -gt 0 ]; do
+ unset ${1}; shift; done; unset _flag_vars _nshift;
+};
+
+set_env_vars() {
+ _val_new="${1}"; shift;
+ while [ ${#} -gt 1 ]; do
+ [ -z "${_val_new}" ] && unset ${1} ||\
+ export "${1}=${_val_new}"; shift;
+ done; unset _val_new;
+};
+
+
+# Download GNU bash-style patch sets into ${2}-patches-extra and
+# apply them to ${2} in the correct order.
apply_patches() {
- (rm_if_exists -m -c ${2};
+ (rm_if_exists -m -c ${2}-patches-extra;
wget -c -nd -np -r -R \*.htm\* -R \*.sig ${1};
- for _patch_fname in \
+ for _patch_fname in \
$(find . -type f -not -iname \*.sig | sort); do
- patch -d ../${PKG_SUBDIR} -p0 \
+ patch -b -d ../${2} -p0 \
< ${_patch_fname};
done; unset _patch_fname);
};
+# Check whether all supplied arguments contain non-empty valid values.
check_path_vars() {
- while [ $# -gt 0 ]; do
- if [ -z "${_val:=$(eval echo \${${1}})}" ]; then
- log_msg fail "Error: variable \`${1}' is empty or unset.";
- exit 1;
- elif [ "x${_val#* }" != "x${_val}" ]; then
- log_msg fail "Error: variable \`${1}' contains one or more whitespace characters.";
- exit 1;
+ while [ ${#} -gt 0 ]; do
+ unset _val;
+ if [ -z "${_val:=$(get_var "${1}")}" ]; then
+ log_msg failexit "Error: variable \`${1}' is empty or unset.";
+ elif match_any "${_val}" " "; then
+ log_msg failexit "Error: variable \`${1}' contains one or more whitespace characters.";
else
shift;
fi;
done; unset _val;
};
+# Check whether all supplied command names resolve.
check_prereqs() {
- for _cmd in "$@"; do
- if ! command -v ${_cmd} >/dev/null; then
- log_msg fail "Error: missing prerequisite command \`${_cmd}.";
- exit 1;
- fi;
- done; unset _cmd;
+ while [ ${#} -gt 0 ]; do
+ if ! command -v ${1} >/dev/null; then
+ log_msg failexit "Error: missing prerequisite command \`${1}'.";
+ fi; shift;
+ done;
};
-date() {
- command date +"${1:-${TIMESTAMP_FMT}}";
+# Clear the environment by unsetting each exported variable except
+# for those named by the caller.
+clear_env_with_except() {
+ _vfilter="${*}"; _unset_cmds="$(mktemp -q)";
+ export | while read _vspec; do
+ set -- ${_vspec}; shift;
+ if ! match_list "${_vfilter}" " " \
+ $(get_prefix_lrg ${1} =); then
+ echo unset $(get_prefix_lrg ${1} =) >> ${_unset_cmds};
+ fi;
+ done; . "${_unset_cmds}"; rm -f "${_unset_cmds}" 2>/dev/null;
+ unset _vfilter _vspec;
};
fetch() {
- wget --no-check-certificate -N ${1};
- if [ $# -eq 2 ] && ! compare_hash ${1##*/} ${2}; then
- log_msg fail "Error: hash mismatch for URL \`${1##*/}'.";
- exit 1;
- fi;
-};
-
-fetch_git() {
- if [ -d ${1} ]; then
- (cd ${1} && git pull origin main);
- else
- git clone ${2} ${1};
+ wget ${WGET_ARGS} ${1};
+ if [ ${#} -eq 2 ]; then
+ set -- $(get_basename ${1}) "$(compare_hash $(get_basename ${1}) ${2})" ${2};
+ if [ -n "${2}" ]; then
+ log_msg failexit "Error: hash mismatch for URL \`${1}' (is: ${2}, should be: ${3}.)";
+ fi;
fi;
};
compare_hash() {
- _hash_cmp=${2}; set -- $(openssl dgst -sha256 ${1});
- shift $((${#}-1)); set -- ${1} ${_hash_cmp}; unset _hash_cmp;
- [ "x${1}" = "x${2}" ];
+ # Push the output of dgst(1SSL) and the caller-supplied hash
+ # value to compare the former with on the pseudo-stack and
+ # shift off# all but the last two positional parameters.
+ # This corresponds to the hash output and caller-supplied
+ # hash values.
+ set -- $(openssl dgst -sha256 ${1}) ${2}; shift $((${#}-2));
+ [ "x${1}" = "x${2}" ] || echo "${1}";
};
compare_hash_manifest() {
- while [ $# -gt 0 ]; do
+ while [ ${#} -gt 0 ]; do
if ! compare_hash ${1} ${2}; then
- log_msg fail "Error: hash mismatch for patch file \`${1}'.";
- exit 1;
- else
- shift;
- fi;
+ log_msg failexit "Error: hash mismatch for patch file \`${1}'.";
+ fi; shift;
done; return 0;
};
is_build_script_done() {
- _script_fname=${SCRIPT_FNAME##*/};
- if [ -f ${WORKDIR}/.${_script_fname%.build}.${1} ]; then
- unset script_fname;
- return 0;
+ if [ -n "${ARG_BUILD_STEPS}" ]; then
+ if [ "${ARG_BUILD_STEPS}" = "finish" ]\
+ || [ -z "${ARG_BUILD_STEPS#ALL}" ]; then
+ return 1; # Build
+ elif ! match_list ${ARG_BUILD_STEPS} , ${1}; then
+ return 0; # Skip
+ else
+ return 1; # Build
+ fi;
+ elif [ -f ${WORKDIR}/.${2:-$(get_basename ${SCRIPT_FNAME%.build})}.${1} ]; then
+ return 0; # Skip
else
- unset script_fname;
- return 1;
+ return 1; # Build
fi;
};
set_build_script_done() {
@@ -97,9 +160,25 @@ set_build_script_done() {
unset _script_fname _done_fname;
};
+log_env_vars() {
+ log_msg info "Variables for this build:";
+ while [ ${_nvar:=0} -lt ${#} ]; do
+ _arg="$(eval echo \${${_nvar}})"; _arg="${_arg%%=*}";
+ if [ ${#_arg} -gt ${_arg_len_max:=0} ]; then
+ _arg_len_max=${#_arg};
+ fi; : $((_nvar+=1));
+ done; unset _nvar _arg;
+ while [ ${#} -gt 0 ]; do
+ log_msg info "$(printf \
+ "%${_arg_len_max}.${_arg_len_max}s=%s" \
+ "${1%%=*}" "$(get_var ${1#*=})")";
+ shift;
+ done; unset _arg_len_max;
+};
log_msg() {
_lvl=${1}; shift;
case ${_lvl} in
+ failexit) printf "\033[${LOG_MSG_FAIL_COLOUR}m"; ;;
fail) printf "\033[${LOG_MSG_FAIL_COLOUR}m"; ;;
info) printf "\033[${LOG_MSG_INFO_COLOUR}m"; ;;
succ) printf "\033[${LOG_MSG_SUCC_COLOUR}m"; ;;
@@ -108,8 +187,38 @@ log_msg() {
printf "==> %s %s %s\033[0m\n" "$(date "${TIMESTAMP_FMT}")" "${1}" "$*";
else
printf "==> %s %s\033[0m\n" "$(date "${TIMESTAMP_FMT}")" "${1}";
- fi;
- unset _lvl;
+ fi; [ ${_lvl} = failexit ] && exit 1 || unset _lvl;
+};
+
+match_list() {
+ _cmp="${3}"; push_IFS "${2}"; set -- ${1}; pop_IFS;
+ while [ ${#} -gt 0 ]; do
+ if [ "x${1}" = "x${_cmp}" ]; then
+ unset _cmp; return 0;
+ fi; shift;
+ done; unset _cmp; return 1;
+};
+
+parse_args_into_vars() {
+ _arg0="${1}"; _args_valid="${2}"; shift 2;
+ while [ $# -gt 0 ]; do
+ case "${1}" in
+ --*) _aname="${1#--}";
+ if ! match_list "${_args_valid}" , "${_aname%%=*}"; then
+ log_msg failexit "Unknown parameter --${_aname%%=*} specified.";
+ elif match_start "${_aname}" "*="; then
+ _aval="$(get_postfix "${_aname}" =)";
+ _aname="$(get_prefix_lrg "${_aname}" =)";
+ else
+ _aval=1;
+ fi;
+ set_var $(echo arg_${_aname} | tr a-z- A-Z_) "${_aval}";
+ shift; ;;
+ *=*) set_var "$(get_prefix_lrg "${1}" =)"\
+ "$(get_postfix "${1}" =)"; shift; ;;
+ *) log_msg failexit "Invalid or unknown command line argument \`${1}'."; ;;
+ esac;
+ done; unset _arg0 _args_valid _aname _aval;
};
parse_with_pkg_name() {
@@ -117,14 +226,9 @@ parse_with_pkg_name() {
while [ $# -ge 0 ]; do
if [ "x${PKG_NAME}" = "x${1}" ]; then
_pkg_NAME=$(echo "${PKG_NAME}" | tr a-z A-Z);
- for _vname in \
- build_type configure_args configure_extra_args \
- no_config_cache no_destdir no_libtool_midipix \
- patches_extra_url prefix prefix_extra sha256sum \
- url version \
- CC CFLAGS LDFLAGS; do
+ for _vname in ${PKG_VARS}; do
_vNAME=$(echo "${_vname}" | tr a-z A-Z);
- if [ -n "${_vval:=$(eval echo \${PKG_${_pkg_NAME}_${_vNAME}})}" ]; then
+ if [ -n "${_vval:=$(get_var PKG_${_pkg_NAME}_${_vNAME})}" ]; then
export PKG_${_vNAME}="${_vval}";
if [ "x${_vname#[A-Z]}" != "x${_vname}" ]; then
export ${_vname}="${_vval}";
@@ -136,47 +240,12 @@ parse_with_pkg_name() {
if [ -z "${PKG_URL}" ]; then
return 1;
else
- PKG_FNAME=${PKG_URL##*/};
- PKG_SUBDIR=${PKG_FNAME%%.tar*};
+ [ -z "${PKG_FNAME}" ] && PKG_FNAME=${PKG_URL##*/};
+ [ -z "${PKG_SUBDIR}" ] && PKG_SUBDIR=${PKG_FNAME%%.tar*};
return 0;
fi;
fi; shift;
done; return 1;
};
-rm_if_exists() {
- while [ $# -gt 1 ]; do [ "x${1%[a-z]}" = "x-" ] &&\
- eval _${1#-}flag=1; shift; done;
- _dir=${1};
- if [ -d ${1} ]; then
- rm -rf ${1} || return 1;
- fi;
- if [ ${_mflag:-0} -eq 1 ]; then
- unset _mflag; mkdir ${1} || return 2;
- fi;
- if [ ${_cflag:-0} -eq 1 ]; then
- unset _cflag; cd ${1} || return 3;
- fi;
-};
-
-set_build_dir() {
- BUILD_DIR=${1}-${2}-${TARGET};
-};
-
-set_env_vars() {
- _val=${1}; shift;
- while [ $# -ge 1 ]; do
- if [ -z "${_val}" ]; then
- unset ${1};
- else
- export "${1}=${_val}";
- fi; shift;
- done; unset _val;
-};
-
-split() {
- _IFS="${IFS}"; IFS="${1}"; set -- ${2};
- IFS="${_IFS}"; echo "${*}"; unset _IFS;
-};
-
# vim:filetype=sh
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