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01cdabced4
crosstool-ng/scripts/functions
Yann E. MORIN" 1b80955d74 Fix restoring the environment.
2007-08-16 12:13:45 +00:00

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# This file contains some usefull common functions
# Copyright 2007 Yann E. MORIN
# Licensed under the GPL v2. See COPYING in the root of this package
# Prepare the fault handler
CT_OnError() {
ret=$?
CT_DoLog ERROR "Build failed in step \"${CT_STEP_MESSAGE[${CT_STEP_COUNT}]}\""
for((step=(CT_STEP_COUNT-1); step>1; step--)); do
CT_DoLog ERROR " called in step \"${CT_STEP_MESSAGE[${step}]}\""
done
CT_DoLog ERROR "Error happened in \"${BASH_SOURCE[1]}\" in function \"${FUNCNAME[1]}\" (line unknown, sorry)"
for((depth=2; ${BASH_LINENO[$((${depth}-1))]}>0; depth++)); do
CT_DoLog ERROR " called from \"${BASH_SOURCE[${depth}]}\" at line # ${BASH_LINENO[${depth}-1]} in function \"${FUNCNAME[${depth}]}\""
done
[ "${CT_LOG_TO_FILE}" = "y" ] && CT_DoLog ERROR "Look at \"${CT_LOG_FILE}\" for more info on this error."
CT_STEP_COUNT=1
CT_DoEnd ERROR
exit $ret
}
# Install the fault handler
trap CT_OnError ERR
# Inherit the fault handler in subshells and functions
set -E
# Make pipes fail on the _first_ failed command
# Not supported on bash < 3.x, but we need it, so drop the obsoleting bash-2.x
set -o pipefail
# Don't hash commands' locations, and search every time it is requested.
# This is slow, but needed because of the static/shared core gcc which shall
# always match to shared if it exists, and only fallback to static if the
# shared is not found
set +o hashall
# Log policy:
# - first of all, save stdout so we can see the live logs: fd #6
exec 6>&1
# - then point stdout to the log file (temporary for now)
tmp_log_file="${CT_TOP_DIR}/log.$$"
exec >>"${tmp_log_file}"
# The different log levels:
CT_LOG_LEVEL_ERROR=0
CT_LOG_LEVEL_WARN=1
CT_LOG_LEVEL_INFO=2
CT_LOG_LEVEL_EXTRA=3
CT_LOG_LEVEL_DEBUG=4
CT_LOG_LEVEL_ALL=5
# A function to log what is happening
# Different log level are available:
# - ERROR: A serious, fatal error occurred
# - WARN: A non fatal, non serious error occurred, take your responsbility with the generated build
# - INFO: Informational messages
# - EXTRA: Extra informational messages
# - DEBUG: Debug messages
# - ALL: Component's build messages
# Usage: CT_DoLog <level> [message]
# If message is empty, then stdin will be logged.
CT_DoLog() {
local max_level LEVEL level cur_l cur_L
local l
eval max_level="\${CT_LOG_LEVEL_${CT_LOG_LEVEL_MAX}}"
# Set the maximum log level to DEBUG if we have none
[ -z "${max_level}" ] && max_level=${CT_LOG_LEVEL_DEBUG}
LEVEL="$1"; shift
eval level="\${CT_LOG_LEVEL_${LEVEL}}"
if [ $# -eq 0 ]; then
cat -
else
echo "${1}"
fi |( IFS="\n" # We want the full lines, even leading spaces
CT_PROG_BAR_CPT=0
indent=$((2*CT_STEP_COUNT))
while read line; do
case "${CT_LOG_SEE_TOOLS_WARN},${line}" in
y,*"warning:"*) cur_L=WARN; cur_l=${CT_LOG_LEVEL_WARN};;
y,*"WARNING:"*) cur_L=WARN; cur_l=${CT_LOG_LEVEL_WARN};;
*"error:"*) cur_L=ERROR; cur_l=${CT_LOG_LEVEL_ERROR};;
*"make["?*"]:"*"Stop.") cur_L=ERROR; cur_l=${CT_LOG_LEVEL_ERROR};;
*) cur_L="${LEVEL}"; cur_l="${level}";;
esac
l="`printf \"[%-5s]%*s%s%s\" \"${cur_L}\" \"${indent}\" \" \" \"${line}\"`"
# There will always be a log file, be it /dev/null
echo -e "${l}"
if [ ${cur_l} -le ${max_level} ]; then
echo -e "\r${l}" >&6
fi
if [ "${CT_LOG_PROGRESS_BAR}" = "y" ]; then
[ ${CT_PROG_BAR_CPT} -eq 0 ] && bar="/"
[ ${CT_PROG_BAR_CPT} -eq 10 ] && bar="-"
[ ${CT_PROG_BAR_CPT} -eq 20 ] && bar="\\"
[ ${CT_PROG_BAR_CPT} -eq 30 ] && bar="|"
printf "\r[%02d:%02d] %s " $((SECONDS/60)) $((SECONDS%60)) "${bar}" >&6
CT_PROG_BAR_CPT=$(((CT_PROG_BAR_CPT+1)%40))
fi
done
)
return 0
}
# Tail message to be logged whatever happens
# Usage: CT_DoEnd <level>
CT_DoEnd()
{
local level="$1"
CT_STOP_DATE=`CT_DoDate +%s%N`
CT_STOP_DATE_HUMAN=`CT_DoDate +%Y%m%d.%H%M%S`
CT_DoLog "${level:-INFO}" "Build completed at ${CT_STOP_DATE_HUMAN}"
elapsed=$((CT_STOP_DATE-CT_STAR_DATE))
elapsed_min=$((elapsed/(60*1000*1000*1000)))
elapsed_sec=`printf "%02d" $(((elapsed%(60*1000*1000*1000))/(1000*1000*1000)))`
elapsed_csec=`printf "%02d" $(((elapsed%(1000*1000*1000))/(10*1000*1000)))`
CT_DoLog ${level:-INFO} "(elapsed: ${elapsed_min}:${elapsed_sec}.${elapsed_csec})"
}
# Abort the execution with an error message
# Usage: CT_Abort <message>
CT_Abort() {
CT_DoLog ERROR "$1"
exit 1
}
# Test a condition, and print a message if satisfied
# Usage: CT_Test <message> <tests>
CT_Test() {
local ret
local m="$1"
shift
test "$@" && CT_DoLog WARN "$m"
return 0
}
# Test a condition, and abort with an error message if satisfied
# Usage: CT_TestAndAbort <message> <tests>
CT_TestAndAbort() {
local m="$1"
shift
test "$@" && CT_Abort "$m"
return 0
}
# Test a condition, and abort with an error message if not satisfied
# Usage: CT_TestAndAbort <message> <tests>
CT_TestOrAbort() {
local m="$1"
shift
test "$@" || CT_Abort "$m"
return 0
}
# Test the presence of a tool, or abort if not found
# Usage: CT_HasOrAbort <tool>
CT_HasOrAbort() {
CT_TestAndAbort "\"${1}\" not found and needed for successfull toolchain build." -z "`CT_Which \"${1}\"`"
return 0
}
# Search a program: wrap "which" for those system where
# "which" verbosely says there is no match (Mdk are such
# suckers...)
# Usage: CT_Which <filename>
CT_Which() {
which "$1" 2>/dev/null || true
}
# Get current date with nanosecond precision
# On those system not supporting nanosecond precision, faked with rounding down
# to the highest entire second
# Usage: CT_DoDate <fmt>
CT_DoDate() {
date "$1" |sed -r -e 's/%N$/000000000/;'
}
CT_STEP_COUNT=1
CT_STEP_MESSAGE[${CT_STEP_COUNT}]="<none>"
# Memorise a step being done so that any error is caught
# Usage: CT_DoStep <loglevel> <message>
CT_DoStep() {
local start=`CT_DoDate +%s%N`
CT_DoLog "$1" "================================================================="
CT_DoLog "$1" "$2"
CT_STEP_COUNT=$((CT_STEP_COUNT+1))
CT_STEP_LEVEL[${CT_STEP_COUNT}]="$1"; shift
CT_STEP_START[${CT_STEP_COUNT}]="${start}"
CT_STEP_MESSAGE[${CT_STEP_COUNT}]="$1"
return 0
}
# End the step just being done
# Usage: CT_EndStep
CT_EndStep() {
local stop=`CT_DoDate +%s%N`
local duration=`printf "%032d" $((stop-${CT_STEP_START[${CT_STEP_COUNT}]})) |sed -r -e 's/([[:digit:]]{2})[[:digit:]]{7}$/\.\1/; s/^0+//; s/^\./0\./;'`
local level="${CT_STEP_LEVEL[${CT_STEP_COUNT}]}"
local message="${CT_STEP_MESSAGE[${CT_STEP_COUNT}]}"
CT_STEP_COUNT=$((CT_STEP_COUNT-1))
CT_DoLog "${level}" "${message}: done in ${duration}s"
return 0
}
# Pushes into a directory, and pops back
CT_Pushd() {
pushd "$1" >/dev/null 2>&1
}
CT_Popd() {
popd >/dev/null 2>&1
}
# Makes a path absolute
# Usage: CT_MakeAbsolutePath path
CT_MakeAbsolutePath() {
# Try to cd in that directory
if [ -d "$1" ]; then
CT_Pushd "$1"
pwd
CT_Popd
else
# No such directory, fail back to guessing
case "$1" in
/*) echo "$1";;
*) echo "`pwd`/$1";;
esac
fi
return 0
}
# Creates a temporary directory
# $1: variable to assign to
# Usage: CT_MktempDir foo
CT_MktempDir() {
# Some mktemp do not allow more than 6 Xs
eval "$1"="`mktemp -q -d \"${CT_BUILD_DIR}/.XXXXXX\"`"
CT_TestOrAbort "Could not make temporary directory" -n "${!1}" -a -d "${!1}"
}
# Echoes the specified string on stdout until the pipe breaks.
# Doesn't fail
# $1: string to echo
# Usage: CT_DoYes "" |make oldconfig
CT_DoYes() {
yes "$1" || true
}
# Get the file name extension of a component
# Usage: CT_GetFileExtension <component_name-component_version>
# If found, echoes the extension to stdout
# If not found, echoes nothing on stdout.
CT_GetFileExtension() {
local ext
local file="$1"
CT_Pushd "${CT_TARBALLS_DIR}"
# we need to also check for an empty extension for those very
# peculiar components that don't have one (such as sstrip from
# buildroot).
for ext in .tar.gz .tar.bz2 .tgz .tar ''; do
if [ -f "${file}${ext}" ]; then
echo "${ext}"
break
fi
done
CT_Popd
return 0
}
# Download an URL using wget
# Usage: CT_DoGetFileWget <URL>
CT_DoGetFileWget() {
# Need to return true because it is legitimate to not find the tarball at
# some of the provided URLs (think about snapshots, different layouts for
# different gcc versions, etc...)
# Some (very old!) FTP server might not support the passive mode, thus
# retry without
# With automated download as we are doing, it can be very dangerous to use
# -c to continue the downloads. It's far better to simply overwrite the
# destination file
wget -nc --progress=dot:binary --tries=3 --passive-ftp "$1" || wget -nc --progress=dot:binary --tries=3 "$1" || true
}
# Download an URL using curl
# Usage: CT_DoGetFileCurl <URL>
CT_DoGetFileCurl() {
# Note: comments about wget method are also valid here
# Plus: no good progreess indicator is available with curl,
# so output is consigned to oblivion
curl --ftp-pasv -O --retry 3 "$1" >/dev/null || curl -O --retry 3 "$1" >/dev/null || true
}
_wget=`CT_Which wget`
_curl=`CT_Which curl`
# Wrapper function to call one of curl or wget
# Usage: CT_DoGetFile <URL>
CT_DoGetFile() {
case "${_wget},${_curl}" in
,) CT_DoError "Could find neither wget nor curl";;
,*) CT_DoGetFileCurl "$1" 2>&1 |CT_DoLog ALL;;
*) CT_DoGetFileWget "$1" 2>&1 |CT_DoLog ALL;;
esac
}
# Download the file from one of the URLs passed as argument
# Usage: CT_GetFile <filename> [extension] <url> [url ...]
CT_GetFile() {
local ext
local url
local file="$1"
local first_ext=""
shift
case "$1" in
.tar.bz2|.tar.gz|.tgz|.tar)
first_ext="$1"
shift
;;
esac
# Do we already have it?
ext=`CT_GetFileExtension "${file}"`
if [ -n "${ext}" ]; then
CT_DoLog DEBUG "Already have \"${file}\""
return 0
fi
CT_Pushd "${CT_TARBALLS_DIR}"
# We'd rather have a bzip2'ed tarball, then gzipped tarball, plain tarball,
# or, as a failover, a file without extension.
# Try local copy first, if it exists
for ext in ${first_ext} .tar.bz2 .tar.gz .tgz .tar ''; do
CT_DoLog DEBUG "Trying \"${CT_LOCAL_TARBALLS_DIR}/${file}${ext}\""
if [ -r "${CT_LOCAL_TARBALLS_DIR}/${file}${ext}" -a \
"${CT_FORCE_DOWNLOAD}" != "y" ]; then
CT_DoLog EXTRA "Retrieving \"${file}\" from local storage"
cp -v "${CT_LOCAL_TARBALLS_DIR}/${file}${ext}" "${file}${ext}" |CT_DoLog ALL
return 0
fi
done
# Try to download it
CT_DoLog EXTRA "Retrieving \"${file}\" from network"
for ext in ${first_ext} .tar.bz2 .tar.gz .tgz .tar ''; do
# Try all urls in turn
for url in "$@"; do
CT_DoLog DEBUG "Trying \"${url}/${file}${ext}\""
CT_DoGetFile "${url}/${file}${ext}"
if [ -f "${file}${ext}" ]; then
# No need to test if the file already exists because
# it does NOT. If it did exist, we'd have been stopped
# above, when looking for local copies.
if [ "${CT_SAVE_TARBALLS}" = "y" ]; then
CT_DoLog EXTRA "Saving \"${file}\" to local storage"
cp -v "${file}${ext}" "${CT_LOCAL_TARBALLS_DIR}" |CT_DoLog ALL
fi
return 0
fi
done
done
CT_Popd
CT_Abort "Could not download \"${file}\", and not present in \"${CT_LOCAL_TARBALLS_DIR}\""
}
# Extract a tarball and patch the resulting sources if necessary.
# Some tarballs need to be extracted in specific places. Eg.: glibc addons
# must be extracted in the glibc directory; uCLibc locales must be extracted
# in the extra/locale sub-directory of uClibc.
CT_ExtractAndPatch() {
local file="$1"
local base_file=`echo "${file}" |cut -d - -f 1`
local ver_file=`echo "${file}" |cut -d - -f 2-`
local official_patch_dir
local custom_patch_dir
local libc_addon
local ext=`CT_GetFileExtension "${file}"`
CT_TestAndAbort "\"${file}\" not found in \"${CT_TARBALLS_DIR}\"" -z "${ext}"
local full_file="${CT_TARBALLS_DIR}/${file}${ext}"
CT_Pushd "${CT_SRC_DIR}"
# Add-ons need a little love, really.
case "${file}" in
glibc-[a-z]*-*)
CT_TestAndAbort "Trying to extract the C-library addon/locales \"${file}\" when C-library not yet extracted" ! -d "${CT_LIBC_FILE}"
cd "${CT_LIBC_FILE}"
libc_addon=y
[ -f ".${file}.extracted" ] && return 0
touch ".${file}.extracted"
;;
uClibc-locale-*)
CT_TestAndAbort "Trying to extract the C-library addon/locales \"${file}\" when C-library not yet extracted" ! -d "${CT_LIBC_FILE}"
cd "${CT_LIBC_FILE}/extra/locale"
libc_addon=y
[ -f ".${file}.extracted" ] && return 0
touch ".${file}.extracted"
;;
esac
# If the directory exists, then consider extraction and patching done
if [ -d "${file}" ]; then
CT_DoLog DEBUG "Already extracted \"${file}\""
return 0
fi
CT_DoLog EXTRA "Extracting \"${file}\""
case "${ext}" in
.tar.bz2) tar xvjf "${full_file}" |CT_DoLog ALL;;
.tar.gz|.tgz) tar xvzf "${full_file}" |CT_DoLog ALL;;
.tar) tar xvf "${full_file}" |CT_DoLog ALL;;
*) CT_Abort "Don't know how to handle \"${file}\": unknown extension" ;;
esac
# Snapshots might not have the version number in the extracted directory
# name. This is also the case for some (odd) packages, such as D.U.M.A.
# Overcome this issue by symlink'ing the directory.
if [ ! -d "${file}" -a "${libc_addon}" != "y" ]; then
case "${ext}" in
.tar.bz2) base=`tar tjf "${full_file}" |head -n 1 |cut -d / -f 1 || true`;;
.tar.gz|.tgz) base=`tar tzf "${full_file}" |head -n 1 |cut -d / -f 1 || true`;;
.tar) base=`tar tf "${full_file}" |head -n 1 |cut -d / -f 1 || true`;;
esac
CT_TestOrAbort "There was a problem when extracting \"${file}\"" -d "${base}" -o "${base}" != "${file}"
ln -s "${base}" "${file}"
fi
# Kludge: outside this function, we wouldn't know if we had just extracted
# a libc addon, or a plain package. Apply patches now.
CT_DoLog EXTRA "Patching \"${file}\""
if [ "${libc_addon}" = "y" ]; then
# Some addons tarball directly contian the correct addon directory,
# while others have the addon directory named ofter the tarball.
# Fix that bu always using the short name (eg: linuxthreads, ports, etc...)
addon_short_name=`echo "${file}" |sed -r -e 's/^[^-]+-//; s/-[^-]+$//;'`
[ -d "${addon_short_name}" ] || ln -s "${file}" "${addon_short_name}"
# If libc addon, we're already in the correct place
else
cd "${file}"
fi
official_patch_dir=
custom_patch_dir=
[ "${CUSTOM_PATCH_ONLY}" = "y" ] || official_patch_dir="${CT_LIB_DIR}/patches/${base_file}/${ver_file}"
[ "${CT_CUSTOM_PATCH}" = "y" ] && custom_patch_dir="${CT_CUSTOM_PATCH_DIR}/${base_file}/${ver_file}"
for patch_dir in "${official_patch_dir}" "${custom_patch_dir}"; do
if [ -n "${patch_dir}" -a -d "${patch_dir}" ]; then
for p in "${patch_dir}"/*.patch; do
if [ -f "${p}" ]; then
CT_DoLog DEBUG "Applying patch \"${p}\""
patch -g0 -F1 -p1 -f <"${p}" |CT_DoLog ALL
CT_TestAndAbort "Failed while applying patch file \"${p}\"" ${PIPESTATUS[0]} -ne 0
fi
done
fi
done
CT_Popd
}
# Two wrappers to call config.(guess|sub) either from CT_TOP_DIR or CT_LIB_DIR.
# Those from CT_TOP_DIR, if they exist, will be be more recent than those from CT_LIB_DIR.
CT_DoConfigGuess() {
if [ -x "${CT_TOP_DIR}/tools/config.guess" ]; then
"${CT_TOP_DIR}/tools/config.guess"
else
"${CT_LIB_DIR}/tools/config.guess"
fi
}
CT_DoConfigSub() {
if [ -x "${CT_TOP_DIR}/tools/config.sub" ]; then
"${CT_TOP_DIR}/tools/config.sub" "$@"
else
"${CT_LIB_DIR}/tools/config.sub" "$@"
fi
}
# Compute the target tuple from what is provided by the user
# Usage: CT_DoBuildTargetTuple
# In fact this function takes the environment variables to build the target
# tuple. It is needed both by the normal build sequence, as well as the
# sample saving sequence.
CT_DoBuildTargetTuple() {
case "${CT_ARCH_BE},${CT_ARCH_LE}" in
y,) target_endian_eb=eb; target_endian_el=;;
,y) target_endian_eb=; target_endian_el=el;;
esac
case "${CT_ARCH}" in
arm) CT_TARGET="${CT_ARCH}${target_endian_eb}";;
mips) CT_TARGET="${CT_ARCH}${target_endian_el}";;
x86*) # Much love for this one :-(
arch="${CT_ARCH_ARCH}"
[ -z "${arch}" ] && arch="${CT_ARCH_TUNE}"
case "${CT_ARCH}" in
x86_64) CT_TARGET=x86_64;;
*) case "${arch}" in
"") CT_TARGET=i386;;
i386|i486|i586|i686) CT_TARGET="${arch}";;
winchip*) CT_TARGET=i486;;
pentium|pentium-mmx|c3*) CT_TARGET=i586;;
nocona|athlon*64|k8|athlon-fx|opteron) CT_TARGET=x86_64;;
pentiumpro|pentium*|athlon*) CT_TARGET=i686;;
*) CT_TARGET=i586;;
esac;;
esac;;
esac
case "${CT_TARGET_VENDOR}" in
"") CT_TARGET="${CT_TARGET}-unknown";;
*) CT_TARGET="${CT_TARGET}-${CT_TARGET_VENDOR}";;
esac
case "${CT_KERNEL}" in
linux*) CT_TARGET="${CT_TARGET}-linux";;
esac
case "${CT_LIBC}" in
glibc) CT_TARGET="${CT_TARGET}-gnu";;
uClibc) CT_TARGET="${CT_TARGET}-uclibc";;
esac
CT_TARGET=`CT_DoConfigSub "${CT_TARGET}"`
}
# This function does pause the build until the user strikes "Return"
# Usage: CT_DoPause [optional_message]
CT_DoPause() {
local foo
local message="${1:-Pausing for your pleasure}"
CT_DoLog INFO "${message}"
read -p "Press \"Enter\" to continue, or Ctrl-C to stop..." foo >&6
return 0
}
# This function saves the state of the toolchain to be able to restart
# at any one point
# Usage: CT_DoSaveState <next_step_name>
CT_DoSaveState() {
[ "${CT_DEBUG_CT_SAVE_STEPS}" = "y" ] || return 0
local state_name="$1"
local state_dir="${CT_STATE_DIR}/${state_name}"
CT_DoLog DEBUG "Saving state to restart at step \"${state_name}\"..."
rm -rf "${state_dir}"
mkdir -p "${state_dir}"
case "${CT_DEBUG_CT_SAVE_STEPS_GZIP}" in
y) tar_opt=z; tar_ext=.gz;;
*) tar_opt=; tar_ext=;;
esac
CT_DoLog DEBUG " Saving environment and aliases"
# We must omit shell functions
set |awk '
BEGIN { _p = 1; }
$0~/^[^ ]+ \(\)/ { _p = 0; }
_p == 1
$0 == "}" { _p = 1; }
' >"${state_dir}/env.sh"
CT_DoLog DEBUG " Saving CT_CC_CORE_STATIC_PREFIX_DIR=\"${CT_CC_CORE_STATIC_PREFIX_DIR}\""
CT_Pushd "${CT_CC_CORE_STATIC_PREFIX_DIR}"
tar cv${tar_opt}f "${state_dir}/cc_core_static_prefix_dir.tar${tar_ext}" . |CT_DoLog DEBUG
CT_Popd
CT_DoLog DEBUG " Saving CT_CC_CORE_SHARED_PREFIX_DIR=\"${CT_CC_CORE_SHARED_PREFIX_DIR}\""
CT_Pushd "${CT_CC_CORE_SHARED_PREFIX_DIR}"
tar cv${tar_opt}f "${state_dir}/cc_core_shared_prefix_dir.tar${tar_ext}" . |CT_DoLog DEBUG
CT_Popd
CT_DoLog DEBUG " Saving CT_PREFIX_DIR=\"${CT_PREFIX_DIR}\""
CT_Pushd "${CT_PREFIX_DIR}"
tar cv${tar_opt}f "${state_dir}/prefix_dir.tar${tar_ext}" --exclude '*.log' . |CT_DoLog DEBUG
CT_Popd
if [ "${CT_LOG_TO_FILE}" = "y" ]; then
CT_DoLog DEBUG " Saving log file"
exec >/dev/null
case "${CT_DEBUG_CT_SAVE_STEPS_GZIP}" in
y) gzip -3 -c "${CT_LOG_FILE}" >"${state_dir}/log.gz";;
*) cat "${CT_LOG_FILE}" >"${state_dir}/log";;
esac
exec >>"${CT_LOG_FILE}"
fi
}
# This function restores a previously saved state
# Usage: CT_DoLoadState <state_name>
CT_DoLoadState(){
local state_name="$1"
local state_dir="${CT_STATE_DIR}/${state_name}"
local old_RESTART="${CT_RESTART}"
local old_STOP="${CT_STOP}"
CT_TestOrAbort "The previous build did not reach the point where it could be restarted at \"${CT_RESTART}\"" -d "${state_dir}"
# We need to do something special with the log file!
if [ "${CT_LOG_TO_FILE}" = "y" ]; then
exec >"${state_dir}/tail.log"
fi
CT_DoLog INFO "Restoring state at step \"${state_name}\", as requested."
case "${CT_DEBUG_CT_SAVE_STEPS_GZIP}" in
y) tar_opt=z; tar_ext=.gz;;
*) tar_opt=; tar_ext=;;
esac
CT_DoLog DEBUG " Removing previous build directories"
chmod -R u+rwX "${CT_PREFIX_DIR}" "${CT_CC_CORE_SHARED_PREFIX_DIR}" "${CT_CC_CORE_STATIC_PREFIX_DIR}"
rm -rf "${CT_PREFIX_DIR}" "${CT_CC_CORE_SHARED_PREFIX_DIR}" "${CT_CC_CORE_STATIC_PREFIX_DIR}"
mkdir -p "${CT_PREFIX_DIR}" "${CT_CC_CORE_SHARED_PREFIX_DIR}" "${CT_CC_CORE_STATIC_PREFIX_DIR}"
CT_DoLog DEBUG " Restoring CT_PREFIX_DIR=\"${CT_PREFIX_DIR}\""
CT_Pushd "${CT_PREFIX_DIR}"
tar xv${tar_opt}f "${state_dir}/prefix_dir.tar${tar_ext}" |CT_DoLog DEBUG
CT_Popd
CT_DoLog DEBUG " Restoring CT_CC_CORE_SHARED_PREFIX_DIR=\"${CT_CC_CORE_SHARED_PREFIX_DIR}\""
CT_Pushd "${CT_CC_CORE_SHARED_PREFIX_DIR}"
tar xv${tar_opt}f "${state_dir}/cc_core_shared_prefix_dir.tar${tar_ext}" |CT_DoLog DEBUG
CT_Popd
CT_DoLog DEBUG " Restoring CT_CC_CORE_STATIC_PREFIX_DIR=\"${CT_CC_CORE_STATIC_PREFIX_DIR}\""
CT_Pushd "${CT_CC_CORE_STATIC_PREFIX_DIR}"
tar xv${tar_opt}f "${state_dir}/cc_core_static_prefix_dir.tar${tar_ext}" |CT_DoLog DEBUG
CT_Popd
# Restore the environment, discarding any error message
# (for example, read-only bash internals)
CT_DoLog DEBUG " Restoring environment"
. "${state_dir}/env.sh" >/dev/null 2>&1 || true
# Restore the new RESTART and STOP steps
CT_RESTART="${old_RESTART}"
CT_STOP="${old_STOP}"
unset old_stop old_restart
if [ "${CT_LOG_TO_FILE}" = "y" ]; then
CT_DoLog DEBUG " Restoring log file"
exec >/dev/null
case "${CT_DEBUG_CT_SAVE_STEPS_GZIP}" in
y) zcat "${state_dir}/log.gz" >"${CT_LOG_FILE}";;
*) cat "${state_dir}/log" >"${CT_LOG_FILE}";;
esac
cat "${state_dir}/tail.log" >>"${CT_LOG_FILE}"
exec >>"${CT_LOG_FILE}"
rm -f "${state_dir}/tail.log"
fi
}
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