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#!/usr/bin/env bash
# Copyright (c) 2016 Egor Tensin <Egor.Tensin@gmail.com>
# This file is part of the "Windows tmp directory" project.
# For details, see https://github.com/egor-tensin/windows-tmp.
# Distributed under the MIT License.
# "Fixes" the value of _NT_SYMBOL_PATH environment variable by
#
# * including the path to the "pdbs" directory in this repository,
# * adding the "symbols" directory as a local "symbol store", mirroring
# Microsoft's http://msdl.microsoft.com/download/symbols.
# usage: ./fix_nt_symbol_path.sh [-h|--help] [-y|--yes] [-d|--dir TMP_DIR]
set -o errexit
set -o nounset
set -o pipefail
dump() {
local prefix="${FUNCNAME[0]}"
if [ "${#FUNCNAME[@]}" -gt 1 ]; then
prefix="${FUNCNAME[1]}"
fi
while [ "$#" -ne 0 ]; do
echo "$prefix: $1" || true
shift
done
}
str_tolower() {
while [ "$#" -ne 0 ]; do
echo "$1" | tr '[:upper:]' '[:lower:]'
shift
done
}
str_contains() {
if [ "$#" -ne 2 ]; then
echo "usage: ${FUNCNAME[0]} STR SUB"
return 1
fi
local str="$1"
local sub
sub="$( printf '%q' "$2" )"
test "$str" != "${str#*$sub}"
}
readonly path_separator=';'
path_contains() {
if [ "$#" -ne 2 ]; then
echo "usage: ${FUNCNAME[0]} ENV_VALUE DIR_PATH"
return 1
fi
local env_value
env_value="$( str_tolower "$1" )"
local path_to_add
path_to_add="$( str_tolower "$2" )"
local -a env_paths
local env_path
IFS="$path_separator" read -ra env_paths <<< "$env_value"
for env_path in "${env_paths[@]+"${env_paths[@]}"}"; do
if [ "$env_path" == "$path_to_add" ]; then
return 0
fi
done
return 1
}
path_append() {
if [ "$#" -ne 2 ]; then
echo "usage: ${FUNCNAME[0]} ENV_VALUE DIR_PATH"
return 1
fi
local env_value="$1"
local path_to_add="$2"
if ! path_contains "$env_value" "$path_to_add"; then
if [ -z "$env_value" ]; then
echo "$path_to_add"
else
echo "$path_separator$path_to_add"
fi
fi
}
prompt_to_continue() {
local prefix="${FUNCNAME[0]}"
if [ "${#FUNCNAME[@]}" -gt 1 ]; then
prefix="${FUNCNAME[1]}"
fi
local prompt_reply
while true; do
echo -n "$prefix: continue? (y/n) "
read -r prompt_reply
prompt_reply="$( str_tolower "$prompt_reply" )"
case "$prompt_reply" in
y|yes) return 0 ;;
n|no) return 1 ;;
*) continue ;;
esac
done
}
ensure_reg_available() {
if command -v reg.exe > /dev/null; then
return 0
else
dump "reg.exe could not be found" >&2
return 1
fi
}
registry_set_string() {
if [ "$#" -ne 3 ]; then
echo "usage: ${FUNCNAME[0]} KEY_PATH VALUE_NAME VALUE_DATA"
return 1
fi
ensure_reg_available
local key_path="$1"
local value_name="$2"
local value_data="$3"
reg.exe add "$key_path" /v "$value_name" /t REG_SZ /d "$value_data" /f > /dev/null
}
fix_nt_symbol_path() {
local tmp_dir
tmp_dir="$( cygpath -aw "$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )" )"
while [ "$#" -ne 0 ]; do
local option="$1"
shift
case "$option" in
-y|--yes)
local skip_prompt=
continue
;;
-h|--help)
local exit_with_usage=0
break
;;
esac
if [ "$#" -eq 0 ]; then
dump "usage error: missing argument for parameter: $option" >&2
local exit_with_usage=1
break
fi
case "$option" in
-d|--dir)
tmp_dir="$( cygpath -aw "$1" )"
shift
;;
*)
dump "usage error: unknown parameter: $option" >&2
local exit_with_usage=1
break
;;
esac
done
if [ -n "${exit_with_usage+x}" ]; then
echo "usage: ${FUNCNAME[0]} [-h|--help] [-y|--yes] [-d|--dir TMP_DIR]"
return "${exit_with_usage:-0}"
fi
dump "temporary directory path: $tmp_dir"
if [ -z "${skip_prompt+x}" ]; then
prompt_to_continue || return 0
fi
local pdbs_dir="$tmp_dir\\pdbs"
local symbols_dir="$tmp_dir\\symbols"
local srv_str="SRV*$symbols_dir*http://msdl.microsoft.com/download/symbols"
local vscache_dir="$tmp_dir\\vscache"
dump "directories:"
dump " custom PDB files: $pdbs_dir"
dump " symbol store: $symbols_dir"
dump " Visual Studio project cache files: $vscache_dir"
local old_value="${_NT_SYMBOL_PATH-}"
dump "old _NT_SYMBOL_PATH value: $old_value"
local new_value="$old_value"
new_value+="$( path_append "$new_value" "$pdbs_dir" )"
new_value+="$( path_append "$new_value" "$srv_str" )"
[ "$new_value" == "$old_value" ] && return 0
dump "new _NT_SYMBOL_PATH value: $new_value"
if [ -z "${skip_prompt+x}" ]; then
prompt_to_continue || return 0
fi
registry_set_string 'HKCU\Environment' '_NT_SYMBOL_PATH' "$new_value"
}
fix_nt_symbol_path "$@"
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