mirror of
https://github.com/crosstool-ng/crosstool-ng.git
synced 2024-12-23 14:42:26 +00:00
777 lines
20 KiB
Bash
Executable File
777 lines
20 KiB
Bash
Executable File
#!/usr/bin/env bash
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if [ "${BASH_VERSINFO[0]}" -lt 4 ]; then
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echo "Your BASH shell version (${BASH_VERSION}) is too old." >&2
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echo "Run bootstrap on a machine with BASH 4.x" >&2
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exit 1
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fi
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########################################
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# Common meta-language implementation. Syntax:
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#
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# The template file is processed line by line, with @@VAR@@ placeholders
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# being replaced with a value of the VAR variable.
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# Special lines start with '#!' and a keyword:
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#
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# #!//
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# Comment, the rest of the line is ignored
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# #!if COND
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# Conditional: the lines until the matching #!end-if are processed
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# only if the conditional COND evaluates to true.
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# #!foreach NAME
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# Iterate over NAME entities (the iterator must be set up first
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# using the set_iter function), processing the lines until the matching
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# #!end-foreach line.
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declare -A info
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debug()
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{
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if [ -n "${DEBUG}" ]; then
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echo "DEBUG :: $@" >&2
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fi
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}
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msg()
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{
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if [ -z "${QUIET}" ]; then
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echo "INFO :: $@" >&2
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fi
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}
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warn()
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{
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echo "WARN :: $@" >&2
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}
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error()
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{
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echo "ERROR :: $@" >&2
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exit 1
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}
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find_end()
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{
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local token="${1}"
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local count=1
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# Skip first line, we know it has the proper '#!' command on it
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endline=$[l + 1]
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while [ "${endline}" -le "${end}" ]; do
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case "${tlines[${endline}]}" in
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"#!${token} "*)
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count=$[count + 1]
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;;
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"#!end-${token}")
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count=$[count - 1]
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;;
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esac
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if [ "${count}" = 0 ]; then
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return
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fi
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endline=$[endline + 1]
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done
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error "${template}:${l}: '${token}' token is unpaired"
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}
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set_iter()
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{
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local name="${1}"
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local -a temp
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if [ "${info[iter_${name}]+set}" = "set" ]; then
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error "Iterator over '${name}' is already set up"
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fi
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shift
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debug "Setting iterator over '${name}' to '$*'"
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temp=("$@")
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info[iter_${name}]="$*"
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info[#${name}]=${#temp[@]}
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}
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run_if()
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{
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local cond="$*"
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local endline
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find_end "if"
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if eval "${cond}"; then
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debug "True conditional '${cond}' at lines ${l}..${endline}"
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run_lines $[l + 1] $[endline - 1]
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else
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debug "False conditional '${cond}' at lines ${l}..${endline}"
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fi
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lnext=$[endline + 1]
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debug "Continue at line ${lnext}"
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}
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do_foreach()
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{
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local var="${1}"
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local -A saveinfo
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local v k
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shift
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if [ "`type -t enter_${var}`" != "function" ]; then
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error "No parameter setup routine for iterator over '${var}'"
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fi
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for v in ${info[iter_${var}]}; do
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# This works in bash 4.4, but not in bash 4.3:
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# local saveinfo=`declare -p info`
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# ...
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# eval "${saveinfo}"
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# Therefore, need to save key-by-key
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saveinfo=()
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for k in "${!info[@]}"; do
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saveinfo["${k}"]=${info["${k}"]}
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done
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if eval "enter_${var} ${v}"; then
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eval "$@"
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fi
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info=()
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for k in "${!saveinfo[@]}"; do
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info["${k}"]=${saveinfo["${k}"]}
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done
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done
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}
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run_foreach()
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{
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local endline
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local var="${1}"
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shift
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if [ "${info[iter_${var}]+set}" != "set" ]; then
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error "${template}:${l}: iterator over '${var}' is not defined"
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fi
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find_end "foreach"
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debug "Loop over '${var}', lines ${l}..${endline}"
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do_foreach ${var} run_lines_if $[l + 1] $[endline - 1] "$*"
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lnext=$[endline + 1]
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debug "Continue at line ${lnext}"
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}
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run_lines_if()
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{
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local start="${1}"
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local end="${2}"
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shift 2
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local cond="$*"
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local a prev
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for a in ${cond}; do
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if [ -n "${prev}" ]; then
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case "${prev}" in
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if-differs)
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if [ "${info[${a}]}" = "${saveinfo[${a}]}" ]; then
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return
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fi
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;;
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*)
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error "${template}:${l}: unknown condition '${prev}' for loop"
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;;
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esac
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prev=
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else
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prev=${a}
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fi
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done
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run_lines "${start}" "${end}"
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}
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run_lines()
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{
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local start="${1}"
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local end="${2}"
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local l lnext s s1 v vp pp p val
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debug "Running lines ${start}..${end}"
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l=${start}
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while [ "${l}" -le "${end}" ]; do
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lnext=$[l+1]
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s="${tlines[${l}]}"
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# Expand @@foo@@ to ${info[foo]}. First escape variables/backslashes for evals below.
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s="${s//\\/\\\\}"
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s="${s//\$/\\\$}"
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s1=
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while [ -n "${s}" ]; do
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case "${s}" in
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*@@*@@*)
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v="${s#*@@}"
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v="${v%%@@*}"
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# $v now includes variable name + any postprocessing
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vp="${v%%[|?]*}"
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pp="${v#${vp}}"
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# $vp is name of the variable proper, $pp is any postprocessing
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if [ "${info[${vp}]+set}" != "set" ]; then
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error "${template}:${l}: reference to undefined variable '${vp}'"
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fi
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if [ "${info[${v}]+set}" != "set" ]; then
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# We know the base variable, need to cache postprocessed value
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val="${info[${vp}]}"
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# Apply postprocessing(s)
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while [ -n "${pp}" ]; do
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case "${pp}" in
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"|"*)
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# Kconfigize
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pp="${pp#|}"
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val=${val//[^0-9A-Za-z_]/_}
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val=${val^^}
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;;
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"?"*)
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pp="${pp#?}"
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p="${pp%%[|?]*}"
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pp="${pp#${p}}"
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val="${val:+${p}}"
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;;
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esac
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done
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info[${v}]="${val}"
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fi
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s1="${s1}${s%%@@*}\${info[${v}]}"
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s="${s#*@@*@@}"
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;;
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*@@*)
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error "${template}:${l}: non-paired @@ markers"
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;;
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*)
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s1="${s1}${s}"
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break
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;;
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esac
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done
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s=${s1}
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debug "Evaluate: ${s}"
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case "${s}" in
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"#!if "*)
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run_if ${s#* }
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;;
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"#!foreach "*)
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run_foreach ${s#* }
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;;
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"#!//"*)
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# Comment, do nothing
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;;
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"#!"*)
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error "${template}:${l}: unrecognized command"
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;;
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*)
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# Not a special command
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eval "echo \"${s//\"/\\\"}\""
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;;
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esac
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l=${lnext}
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done
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}
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run_template()
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{
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local -a tlines
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local src="${1}"
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if [ ! -r "${src}" ]; then
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error "Template '${src}' not found"
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fi
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template="${src}"
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debug "Running template ${src}"
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mapfile -O 1 -t tlines < "${src}"
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run_lines 1 ${#tlines[@]}
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}
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########################################
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# Leave only relevant portion of the string
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relevantize()
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{
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local p pb pa vx
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local v="${1}"
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shift
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# Find the first match and contract to the matching portion.
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for p in "$@"; do
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pb=${p%|*}
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pa=${p#*|}
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eval "vx=\${v#${pb}${pa}}"
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if [ "${v%${pa}${vx}}" != "${v}" ]; then
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v=${v%${pa}${vx}}
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break
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fi
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done
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echo "${v}"
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}
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# Helper for cmp_versions: compare an upstream/debian portion of
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# a version. Returns 0 if equal, otherwise echoes "-1" or "1" and
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# returns 1.
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equal_versions()
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{
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local v1="${1}"
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local v2="${2}"
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local p1 p2
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# Compare alternating non-numerical/numerical portions, until
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# non-equal portion is found or either string is exhausted.
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while [ -n "${v1}" -a -n "${v2}" ]; do
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# Find non-numerical portions and compare lexicographically
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p1="${v1%%[0-9]*}"
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p2="${v2%%[0-9]*}"
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v1="${v1#${p1}}"
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v2="${v2#${p2}}"
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#debug "lex [${p1}] v [${p2}]"
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if [ "${p1}" \< "${p2}" ]; then
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echo "-1"
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return 1
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elif [ "${p1}" \> "${p2}" ]; then
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echo "1"
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return 1
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fi
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#debug "rem [${v1}] v [${v2}]"
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# Find numerical portions and compare numerically
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p1="${v1%%[^0-9]*}"
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p2="${v2%%[^0-9]*}"
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v1="${v1#${p1}}"
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v2="${v2#${p2}}"
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#debug "num [${p1}] v [${p2}]"
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if [ "${p1:-0}" -lt "${p2:-0}" ]; then
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echo "-1"
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return 1
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elif [ "${p1:-0}" -gt "${p2:-0}" ]; then
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echo "1"
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return 1
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fi
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#debug "rem [${v1}] v [${v2}]"
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done
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if [ -n "${v1}" ]; then
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echo "1"
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return 1
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elif [ -n "${v2}" ]; then
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echo "-1"
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return 1
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fi
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return 0
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}
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# Compare two version strings, similar to sort -V. But we don't
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# want to depend on GNU sort availability on the host.
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# See http://www.debian.org/doc/debian-policy/ch-controlfields.html
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# for description of what the version is expected to be.
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# Returns "-1", "0" or "1" if first version is earlier, same or
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# later than the second.
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cmp_versions()
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{
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local v1="${1}"
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local v2="${2}"
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local e1=0 e2=0 u1 u2 d1=0 d2=0
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# Case-insensitive comparison
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v1="${v1^^}"
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v2="${v2^^}"
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# Find if the versions contain epoch part
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case "${v1}" in
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*:*)
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e1="${v1%%:*}"
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v1="${v1#*:}"
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;;
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esac
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case "${v2}" in
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*:*)
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e2="${v2%%:*}"
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v2="${v2#*:}"
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;;
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esac
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# Compare epochs numerically
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if [ "${e1}" -lt "${e2}" ]; then
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echo "-1"
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return
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elif [ "${e1}" -gt "${e2}" ]; then
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echo "1"
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return
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fi
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# Find if the version contains a "debian" part.
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# v1/v2 will now contain "upstream" part.
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case "${v1}" in
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*-*)
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d1=${v1##*-}
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v1=${v1%-*}
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;;
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esac
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case "${v2}" in
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*-*)
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d2=${v2##*-}
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v2=${v2%-*}
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;;
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esac
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# Compare upstream
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if equal_versions "${v1}" "${v2}" && equal_versions "${d1}" "${d2}"; then
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echo "0"
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fi
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}
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# Sort versions, descending
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sort_versions()
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{
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local sorted
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local remains="$*"
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local next_remains
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local v vx found
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while [ -n "${remains}" ]; do
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#debug "Sorting [${remains}]"
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for v in ${remains}; do
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found=yes
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next_remains=
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#debug "Candidate ${v}"
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for vx in ${remains}; do
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#debug "${v} vs ${vx} :: `cmp_versions ${v} ${vx}`"
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case `cmp_versions ${v} ${vx}` in
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1)
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next_remains+=" ${vx}"
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;;
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0)
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;;
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-1)
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found=no
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#debug "Bad: earlier than ${vx}"
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break
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;;
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esac
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done
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if [ "${found}" = "yes" ]; then
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# $v is less than all other members in next_remains
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sorted+=" ${v}"
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remains="${next_remains}"
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#debug "Good candidate ${v} sorted [${sorted}] remains [${remains}]"
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break
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fi
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done
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done
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echo "${sorted}"
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}
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read_file()
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{
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local l p
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while read l; do
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l="${p}${l}"
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p=
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case "${l}" in
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"")
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continue
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;;
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*\\)
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p="${l%\\}"
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continue
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;;
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"#"*)
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continue
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;;
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*=*)
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echo "info[${l%%=*}]=${l#*=}"
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;;
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*)
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error "syntax error in '${1}': '${l}'"
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;;
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esac
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done < "${1}"
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}
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read_package_desc()
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{
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read_file "packages/${1}/package.desc"
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}
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read_version_desc()
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{
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read_file "packages/${1}/${2}/version.desc"
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}
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find_forks()
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{
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local -A info
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info[preferred]=${1}
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eval `read_package_desc ${1}`
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if [ -n "${info[master]}" ]; then
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pkg_nforks[${info[master]}]=$[pkg_nforks[${info[master]}]+1]
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pkg_forks[${info[master]}]+=" ${1} "
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else
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pkg_preferred[${1}]=${info[preferred]}
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pkg_nforks[${1}]=$[pkg_nforks[${1}]+1]
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pkg_forks[${1}]+=" ${1} "
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pkg_milestones[${1}]=`sort_versions ${info[milestones]}`
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pkg_relevantpattern[${1}]=${info[relevantpattern]}
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pkg_masters+=( "${1}" )
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fi
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# Keep sorting so that preferred fork is first
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if [ -n "${pkg_preferred[${1}]}" ]; then
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pkg_forks[${1}]="${pkg_preferred[${1}]} ${pkg_forks[${1}]##* ${pkg_preferred[${1}]} } ${pkg_forks[${1}]%% ${pkg_preferred[${1}]} *}"
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fi
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}
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check_obsolete_experimental()
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{
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[ -z "${info[obsolete]}" ] && only_obsolete=
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[ -z "${info[experimental]}" ] && only_experimental=
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}
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enter_fork()
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{
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local fork="${1}"
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local versions
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local only_obsolete only_experimental
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# Set defaults
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info[obsolete]=
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info[experimental]=
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info[repository]=
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info[repository_branch]=
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info[repository_cset]=
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info[repository_subdir]=
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info[bootstrap]=
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info[fork]=${fork}
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info[pkg_name]=${fork}
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info[pkg_label]=${fork}
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info[mirrors]=
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info[archive_filename]='@{pkg_name}-@{version}'
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info[archive_dirname]='@{pkg_name}-@{version}'
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info[versionlocked]=
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info[origin]=
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info[signature_format]=
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eval `read_package_desc ${fork}`
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if [ -r "packages/${info[origin]}.help" ]; then
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info[originhelp]=`sed 's/^/ /' "packages/${info[origin]}.help"`
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else
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info[originhelp]=" ${info[master]} from ${info[origin]}."
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fi
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if [ -n "${info[repository]}" ]; then
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info[vcs]=${info[repository]%% *}
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info[repository_url]=${info[repository]#* }
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fi
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versions=`cd packages/${fork} && \
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for f in */version.desc; do [ -r "${f}" ] && echo "${f%/version.desc}"; done`
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versions=`sort_versions ${versions}`
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set_iter version ${versions}
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info[all_versions]=${versions}
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|
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# If a fork does not define any versions at all ("rolling release"), do not
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# consider it obsolete/experimental unless it is so marked in the fork's
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# description.
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if [ -n "${versions}" ]; then
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only_obsolete=yes
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only_experimental=yes
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do_foreach version check_obsolete_experimental
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info[only_obsolete]=${only_obsolete}
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info[only_experimental]=${only_experimental}
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else
|
|
info[only_obsolete]=${info[obsolete]}
|
|
info[only_experimental]=${info[experimental]}
|
|
fi
|
|
}
|
|
|
|
enter_version()
|
|
{
|
|
local version="${1}"
|
|
|
|
eval `read_version_desc ${info[fork]} ${version}`
|
|
info[ver]=${version}
|
|
info[ver_sel]=`relevantize ${version} ${info[relevantpattern]}`
|
|
}
|
|
|
|
enter_milestone()
|
|
{
|
|
local ms="${1}"
|
|
local cmp
|
|
|
|
info[ms]=${ms}
|
|
if [ -n "${info[ver]}" ]; then
|
|
info[version_cmp_milestone]=`cmp_versions ${info[ver]} ${info[ms]}`
|
|
fi
|
|
}
|
|
|
|
gen_packages()
|
|
{
|
|
local -A pkg_forks pkg_milestones pkg_nforks pkg_relevantpattern
|
|
local -a pkg_masters pkg_all pkg_preferred
|
|
|
|
pkg_all=( `cd packages && \
|
|
ls */package.desc 2>/dev/null | \
|
|
while read f; do [ -r "${f}" ] && echo "${f%/package.desc}"; done | \
|
|
xargs echo` )
|
|
|
|
debug "Packages: ${pkg_all[@]}"
|
|
|
|
# We need to group forks of the same package into the same
|
|
# config file. Discover such relationships and only iterate
|
|
# over "master" packages at the top.
|
|
for p in "${pkg_all[@]}"; do
|
|
find_forks "${p}"
|
|
done
|
|
msg "Master packages: ${pkg_masters[@]}"
|
|
|
|
# Now for each master, create its kconfig file with version
|
|
# definitions. As a byproduct, generate a list of all package
|
|
# versions for maintenance purposes.
|
|
exec 3>"maintainer/package-versions"
|
|
for p in "${pkg_masters[@]}"; do
|
|
msg "Generating '${config_versions_dir}/${p}.in'"
|
|
exec >"${config_versions_dir}/${p}.in"
|
|
# Base definitions for the whole config file
|
|
info=( \
|
|
[master]=${p} \
|
|
[nforks]=${pkg_nforks[${p}]} \
|
|
[relevantpattern]=${pkg_relevantpattern[${p}]} \
|
|
)
|
|
set_iter fork ${pkg_forks[${p}]}
|
|
set_iter milestone ${pkg_milestones[${p}]}
|
|
|
|
run_template "maintainer/kconfig-versions.template"
|
|
run_template "maintainer/package-versions.template" >&3
|
|
done
|
|
}
|
|
|
|
msg "*** Generating package version descriptions"
|
|
config_versions_dir=config/versions
|
|
rm -rf "${config_versions_dir}"
|
|
mkdir -p "${config_versions_dir}"
|
|
gen_packages
|
|
|
|
get_components()
|
|
{
|
|
local dir="${1}"
|
|
local f b
|
|
|
|
for f in ${dir}/*.in; do
|
|
b=${f#${dir}/}
|
|
echo ${b%.in}
|
|
done
|
|
}
|
|
|
|
enter_choice()
|
|
{
|
|
local choice="${1}"
|
|
local input="config/${info[dir]}/${choice}.in"
|
|
local l ln
|
|
|
|
info[choice]="${choice}"
|
|
info[pkg]="${choice}"
|
|
|
|
# Not local, we need these arrays be set in enter_dependency/enter_help
|
|
deplines=( )
|
|
helplines=( )
|
|
ln=0
|
|
while read l; do
|
|
ln=$[ln+1]
|
|
case "${l}" in
|
|
"## help "*)
|
|
helplines+=( "${l#\#\# help }" )
|
|
;;
|
|
"## depends "*|"## select "*|"## default "*)
|
|
deplines+=( "${l#\#\# }" )
|
|
;;
|
|
"## no-package")
|
|
info[pkg]=
|
|
;;
|
|
"## package "*)
|
|
info[pkg]=${l#\#\# package }
|
|
;;
|
|
"##"|"## help")
|
|
# accept empty, for formatting
|
|
;;
|
|
"##"*)
|
|
error "${input}:${ln}: unrecognized command"
|
|
;;
|
|
esac
|
|
done < "${input}"
|
|
set_iter dependency "${!deplines[@]}"
|
|
set_iter help "${!helplines[@]}"
|
|
}
|
|
|
|
enter_dependency()
|
|
{
|
|
info[depline]="${deplines[${1}]}"
|
|
}
|
|
|
|
enter_help()
|
|
{
|
|
info[helpline]="${helplines[${1}]}"
|
|
}
|
|
|
|
gen_selection()
|
|
{
|
|
local type="${1}"
|
|
local dir="${2}"
|
|
local label="${3}"
|
|
|
|
msg "Generating ${dir}.in (${type})"
|
|
exec >"${config_gen_dir}/${dir}.in"
|
|
info=( \
|
|
[dir]=${dir} \
|
|
[label]="${label}" \
|
|
)
|
|
set_iter choice `get_components config/${dir}`
|
|
run_template "maintainer/kconfig-${type}.template"
|
|
}
|
|
|
|
msg "*** Generating menu/choice selections"
|
|
config_gen_dir=config/gen
|
|
rm -rf "${config_gen_dir}"
|
|
mkdir -p "${config_gen_dir}"
|
|
|
|
gen_selection choice arch "Target Architecture"
|
|
gen_selection choice kernel "Target OS"
|
|
gen_selection choice cc "Compiler"
|
|
gen_selection choice binutils "Binutils"
|
|
gen_selection choice libc "C library"
|
|
gen_selection menu debug "Debug facilities"
|
|
gen_selection menu comp_tools "Companion tools"
|
|
gen_selection menu comp_libs "Companion libraries"
|
|
|
|
msg "*** Gathering the list of data files to install"
|
|
{
|
|
declare -A seen_files
|
|
echo -n "verbatim_data ="
|
|
find config contrib packages samples scripts -type f | LANG=C sort | while read f; do
|
|
# Implement some kind of .installignore for these files?
|
|
case "${f}" in
|
|
# Skip certain files not needed at runtime (used above for generating kconfig
|
|
# fragments).
|
|
packages/*.help | packages/*.desc)
|
|
continue
|
|
;;
|
|
# And, some file automake insists we must have
|
|
scripts/compile | scripts/missing | scripts/depcomp | scripts/ltmain.sh | scripts/install-sh)
|
|
continue
|
|
;;
|
|
# Special hack for configure.in.in - replace with the file that configure
|
|
# will produce. FIXME: create this file at the time of 'ct-ng build'.
|
|
config/configure.in.in)
|
|
f=config/configure.in
|
|
;;
|
|
esac
|
|
# Checks & substitutions above may result in duplicate files
|
|
if [ -n "${seen_files[${f}]}" ]; then
|
|
continue
|
|
fi
|
|
echo " \\"
|
|
echo -n " ${f}"
|
|
seen_files[${f}]=y
|
|
done
|
|
} > verbatim-data.mk
|
|
|
|
msg "*** Running autoreconf"
|
|
autoreconf -Wall --force
|
|
|
|
msg "*** Done!"
|