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makepkg: safely change directories

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In preparation for the removal of the global error trap we need a
way to ensure changing directories succeeds.  Add a "cd_safe"
wrapper that performs the necessary check.

Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
This commit is contained in:
Allan McRae 2012-03-09 17:43:47 +10:00 committed by Dan McGee
parent 1917c845f7
commit 923214497f
1 changed files with 21 additions and 13 deletions
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34
scripts/makepkg.sh.in
View File

@ -874,6 +874,14 @@ error_function() {
exit 2 # $E_BUILD_FAILED
}
cd_safe() {
if ! cd "$1"; then
error "$(gettext "Failed to change to directory %s")" "$1"
plain "$(gettext "Aborting...")"
exit 1
fi
}
run_function() {
if [[ -z $1 ]]; then
return 1
@ -891,7 +899,7 @@ run_function() {
fi
msg "$(gettext "Starting %s()...")" "$pkgfunc"
cd "$srcdir"
cd_safe "$srcdir"
# ensure all necessary build variables are exported
export CFLAGS CXXFLAGS LDFLAGS MAKEFLAGS CHOST
@ -969,7 +977,7 @@ run_package() {
}
tidy_install() {
cd "$pkgdir"
cd_safe "$pkgdir"
msg "$(gettext "Tidying install...")"
if [[ $(check_option docs) = "n" && -n ${DOC_DIRS[*]} ]]; then
@ -1226,7 +1234,7 @@ write_pkginfo() {
}
check_package() {
cd "$pkgdir"
cd_safe "$pkgdir"
# check existence of backup files
local file
@ -1255,7 +1263,7 @@ create_package() {
check_package
cd "$pkgdir"
cd_safe "$pkgdir"
msg "$(gettext "Creating package...")"
local nameofpkg
@ -1414,7 +1422,7 @@ create_srcpackage() {
# tar it up
msg2 "$(gettext "Compressing source package...")"
cd "${srclinks}"
cd_safe "${srclinks}"
if ! bsdtar -c${TAR_OPT}Lf "$pkg_file" ${pkgbase}; then
error "$(gettext "Failed to create source package file.")"
exit 1 # TODO: error code
@ -1430,7 +1438,7 @@ create_srcpackage() {
warning "$(gettext "Failed to create symlink to source package file.")"
fi
cd "${startdir}"
cd_safe "${startdir}"
rm -rf "${srclinks}"
}
@ -1855,7 +1863,7 @@ canonicalize_path() {
if [[ -d $path ]]; then
(
cd "$path"
cd_safe "$path"
pwd -P
)
else
@ -2179,7 +2187,7 @@ fi
if (( GENINTEG )); then
mkdir -p "$srcdir"
chmod a-s "$srcdir"
cd "$srcdir"
cd_safe "$srcdir"
download_sources
generate_checksums
exit 0 # $E_OK
@ -2329,14 +2337,14 @@ if (( SOURCEONLY )); then
# Get back to our src directory so we can begin with sources.
mkdir -p "$srcdir"
chmod a-s "$srcdir"
cd "$srcdir"
cd_safe "$srcdir"
if ( (( ! SKIPCHECKSUMS )) || \
( (( ! SKIPPGPCHECK )) && source_has_signatures ) ) || \
(( SOURCEONLY == 2 )); then
download_sources
fi
check_source_integrity
cd "$startdir"
cd_safe "$startdir"
# if we are root or if fakeroot is not enabled, then we don't use it
if [[ $(check_buildenv fakeroot) != "y" ]] || (( EUID == 0 )); then
@ -2392,7 +2400,7 @@ umask 0022
# get back to our src directory so we can begin with sources
mkdir -p "$srcdir"
chmod a-s "$srcdir"
cd "$srcdir"
cd_safe "$srcdir"
if (( NOEXTRACT )); then
warning "$(gettext "Skipping source retrieval -- using existing %s tree")" "src/"
@ -2428,7 +2436,7 @@ else
fi
mkdir -p "$pkgdir"
chmod a-s "$pkgdir"
cd "$startdir"
cd_safe "$startdir"
# if we are root or if fakeroot is not enabled, then we don't use it
if [[ $(check_buildenv fakeroot) != "y" ]] || (( EUID == 0 )); then
@ -2458,7 +2466,7 @@ else
devel_update
(( BUILDFUNC )) && run_build
(( CHECKFUNC )) && run_check
cd "$startdir"
cd_safe "$startdir"
fi
enter_fakeroot