check for existance of the file(1) utility;

might not be found in lean chroots
This commit is contained in:
George Danchev 2012-04-21 16:17:30 +00:00
parent 31cea2abf9
commit ee8ee6381c
1 changed files with 7 additions and 0 deletions

View File

@ -81,10 +81,17 @@ ln "$on_disk"/file_2 "$on_disk"/file_2_link_a || exit 1
# trivial ISO 9660 image validation routine
is_valid_iso9660() {
ISOfile="$1"
if ! which file >/dev/null 2>&1; then
printf "\nFAIL : ${SELF}: Not found: file. Please install the file(1) utility.\n"
failure=1
return
fi
if [ ! -f ${ISOfile} ]; then
failure=1
printf "\nFAIL : ${SELF} : Not found: ${ISOfile}\n"
return
fi
file ${ISOfile}
if file ${ISOfile} | grep "ISO *9660" >/dev/null 2>&1; then
printf "\n${SELF}: Resulting ${ISOfile} OK. Looks like ISO 9660 filesystem.\n"