docs/get-remote-files.sh
Ron Stone 0a562be887 Scope vars
Minor cleanup on var scopes in functions.
Add support for prot selection.

Signed-off-by: Ron Stone <ronald.stone@windriver.com>
Change-Id: I9763a6d50631d357f7de11668b1f02d5cab898b1
2022-11-25 13:00:44 -05:00

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#!/usr/bin/env bash
# Fetch arbitrary files from a remote location for processing/
# inclusion in local build.
declare -A stx_repo
message () { echo -e "$@" 1>&2; }
usage_error () {
message "\nUsage: $0 -c config-file -o <file|stdout> [-f -b]
-c <config-file> contains fetch and save locations for files
-o sets the output path to the save locations in <config-file> or to STDOUT
-f optionally forces existing output files to be overwritten
-b skips branch lookup. Use this if downloading from a non-git URL\n"
exit 1
}
check_util_deps () {
for dep in $@
do
if ! hash $dep 2>/dev/null; then
message >&2 "... $dep dependency not met. Please install."
exit 1
fi
done
}
check_file_deps () {
for filereq in $@
do
if [ ! -f "${filereq}" ] && [ ! -L "${filereq}" ]; then message "${filereq} not found. Quiting."; exit 1; fi
done
}
load_configs () {
CONTEXT_DIR="${BASH_SOURCE%/*}"
if [[ ! -d "$CONTEXT_DIR" ]]; then CONTEXT_DIR="$PWD"; fi
. "$CONTEXT_DIR/$config_file"
message "Loaded $CONTEXT_DIR/$config_file"
}
get_remote () {
if [[ $no_branch = "t" ]]; then message "Branch ignored"; return; fi
local _regex_br="^defaultbranch\=(.*)\s*$"
local _remote=$(grep defaultbranch $branch_file)
if [[ "${_remote}" =~ $_regex_br ]]
then
remote="${BASH_REMATCH[1]}"
else
message "Can't find remote branch"; exit 1
fi
for b in "${!stx_repo[@]}"
do
if [[ ${remote} == ${b} ]]
then
remote="${stx_repo[$b]}"
break
fi
done
remote="$remote/"
message "Remote is: $remote"
}
fetch_files () {
local _f
for _f in "${!remote_files[@]}"; do
local _outfile
case $out_method in
"file")
_outfile="$common_target${remote_files[$_f]}"
if [ ! -d $(dirname $_outfile) ]; then mkdir -p `dirname $_outfile`; fi
;;
"stdout")
_outfile="-"
;;
*)
message "Should never get here!"; exit 1;
;;
esac
if [ -f $_outfile ] && [ ! "$force" = "t" ] && [ "$out_method" = "file" ]; then
message "$_outfile already exists, use \"-f\" to override. Quiting"
usage_error
exit 1
fi
wget $addtional_flags -q -O $_outfile $prot://$remote_repo/$remote$_f
if [ $? -ne 0 ]; then
if [ ! -s $_outfile ]; then rm -f $_outfile; fi
message "Could not download ${remote_files[$_f]}. Quiting"
exit 1
fi
done
}
while getopts "c:o:fb" flag
do
case "${flag}" in
c)
config_file=$OPTARG
;;
o)
case $OPTARG in
file) out_method="file" ;;
stdout) out_method="stdout" ;;
*) usage_error ;;
esac
;;
f) force="t" ;;
b) no_branch="t" ;;
*) message "Unknown arg \"$flag\""; usage_error ;;
esac
done
shift "$(( OPTIND - 1 ))"
if [ -z "$config_file" ] || [ -z "$out_method" ]
then
message "ARGS CHECK FAILED"
usage_error
fi
branch_file=".gitreview"
## Run
check_util_deps wget
check_file_deps $branch_file $config_file
declare -A remote_files && load_configs $config_file
get_remote
fetch_files