/
fetch
executable file
·203 lines (114 loc) · 3.6 KB
/
fetch
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#!/usr/bin/env bash
rvm_base_except="selector"
source "$rvm_scripts_path/base"
result=0
# Set it to cleanup the download on interruption.
trap 'cleanup_download' 1 2 3 15
cleanup_download()
{
[[ -f "$archive" ]] && rm -f "$archive"
}
record_md5()
{
case "$(uname)" in
Darwin|FreeBSD)
archive_md5="$(/sbin/md5 -q "${archive}")"
;;
OpenBSD)
archive_md5="$(/bin/md5 -q "${archive}")"
;;
Linux|*)
archive_md5="$(md5sum "${archive}" | awk '{print $1}')"
;;
esac
"$rvm_scripts_path/db" "$rvm_config_path/md5" "$archive" "$archive_md5"
}
builtin cd "$rvm_archives_path"
# args=($*) # Reserved for future use
if [[ -z "$1" ]] ; then
rvm_error "BUG: $0 called without an argument :/"
exit 1
fi
url="$1"; download=1 ; package_name="$2"
if ! command -v curl > /dev/null ; then
rvm_error "rvm requires curl. curl was not found in your active path."
exit 1
elif [[ ! -z ${rvm_proxy} ]] ; then
fetch_command="curl -x${rvm_proxy} -L --create-dirs -C - " # -s for silent
else
fetch_command="curl -L --create-dirs -C - " # -s for silent
fi
if [[ ! -z "$package_name" ]] ; then
fetch_command="${fetch_command} -o ${package_name} "
archive="$package_name"
else
fetch_command="${fetch_command} -O "
archive=$(basename "$url")
fi
[[ ${rvm_debug_flag:-0} -gt 0 ]] && rvm_debug "Fetching $archive"
# Check first if we have the correct archive
archive_md5="$("$rvm_scripts_path/db" "$rvm_config_path/md5" "$archive" | head -n1)"
if [[ -e "$archive" && ! -z "$archive_md5" ]] ; then
[[ ${rvm_debug_flag:-0} -gt 0 ]] && \
rvm_debug "Found archive and its md5, testing correctness"
if ! "$rvm_scripts_path"/md5 "$rvm_archives_path/${archive}" "$archive_md5" ; then
[[ ${rvm_debug_flag:-0} -gt 0 ]] && \
rvm_debug "Archive md5 did not match, downloading"
download=1
else
[[ ${rvm_debug_flag:-0} -gt 0 ]] && \
rvm_debug "Archive md5 matched, not downloading"
download=0
result=0
fi
else
[[ ${rvm_debug_flag:-0} -gt 0 ]] && \
rvm_debug "No archive or no MD5, downloading"
download=1
fi
# try to convert the ftp url to a http url
http_url="$(echo "$url" | sed -e 's/ftp:/http:/' -e 's/git:/https:/')"
if [[ $download -gt 0 ]] ; then
rm -f $archive
eval $fetch_command "$url" ; result=$?
if [[ $result -gt 0 ]] ; then
retry=0
try_http=0
if [[ $result -eq 78 ]] ; then
rvm_error "The requested url does not exist: '$url'"
try_http=1
elif [[ $result -eq 18 ]] ; then
rvm_error "Partial file. Only a part of the file was transferred. Removing partial and re-trying."
rm -f "$archive"
retry=1
elif [[ $result -eq 33 ]] ; then
[[ ${rvm_debug_flag:-0} -gt 0 ]] && \
rvm_debug "Server does not support 'range' command, removing '$archive'"
rm -f "$archive"
retry=1
else
rvm_error "There was an error, please check ${rvm_log_path}/$rvm_ruby_string/*.log. Next we'll try to fetch via http."
try_http=1
fi
if [[ $retry -eq 1 ]] ; then
eval $fetch_command "$url" ; result=$?
if [[ $result -gt 0 ]] ; then
rvm_error "There was an error, please check ${rvm_log_path}/$rvm_ruby_string/*.log"
else
record_md5
fi
fi
if [[ $try_http -eq 1 ]] ; then
rvm_log "Trying http:// URL instead."
eval $fetch_command "$http_url" ; result=$?
if [[ $result -gt 0 ]] ; then
rvm_error "There was an error, please check ${rvm_log_path}/$rvm_ruby_string/*.log"
else
record_md5
fi
fi
else
record_md5
fi
fi
exit $result