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Posted to notifications@ant.apache.org by bo...@apache.org on 2016/10/22 14:00:37 UTC
ant git commit: fix problems with argument handling of trailing space
and sed/echo quirks
Repository: ant
Updated Branches:
refs/heads/1.9.x c1bbf2fc0 -> 173c28f76
fix problems with argument handling of trailing space and sed/echo quirks
Project: http://git-wip-us.apache.org/repos/asf/ant/repo
Commit: http://git-wip-us.apache.org/repos/asf/ant/commit/173c28f7
Tree: http://git-wip-us.apache.org/repos/asf/ant/tree/173c28f7
Diff: http://git-wip-us.apache.org/repos/asf/ant/diff/173c28f7
Branch: refs/heads/1.9.x
Commit: 173c28f765f105226b8a45b301e13591a7e050f3
Parents: c1bbf2f
Author: Jeffrey Adamson <jw...@us.ibm.com>
Authored: Mon Oct 10 17:16:27 2016 -0400
Committer: Stefan Bodewig <bo...@apache.org>
Committed: Sat Oct 22 16:00:19 2016 +0200
----------------------------------------------------------------------
src/script/ant | 54 ++++++++++++++++++++++++++++++++++++++++++++++-------
1 file changed, 47 insertions(+), 7 deletions(-)
----------------------------------------------------------------------
http://git-wip-us.apache.org/repos/asf/ant/blob/173c28f7/src/script/ant
----------------------------------------------------------------------
diff --git a/src/script/ant b/src/script/ant
old mode 100755
new mode 100644
index 58e187c..8cc8f8e
--- a/src/script/ant
+++ b/src/script/ant
@@ -21,6 +21,9 @@ no_config=false
use_jikes_default=false
ant_exec_debug=false
show_help=false
+
+esc_tool=sed
+
for arg in "$@" ; do
if [ "$arg" = "--noconfig" ] ; then
no_config=true
@@ -35,12 +38,49 @@ for arg in "$@" ; do
if [ my"$arg" = my"-h" -o my"$arg" = my"-help" ] ; then
show_help=true
fi
- # escape $, ", and \ characters by inserting a \
- esc_arg=`echo "$arg" | sed -e 's@[$"\\]@\\\\\\\\\0@g' `
- # escape ` by inserting a \
- esc_arg=`echo "$esc_arg" | sed -e 's@\`@\\\\\`@g'`
- # wrap escaped arg as a quoted argument
+
+ # wrap all arguments as "" strings, escape any internal back-slash, double-quote, $, or back-tick characters
+ # use printf to avoid echo modification behaviors such as escape and line continuation
+ # pad the value with leading/trailing X to protect trailing newlines and whitespace from awk and sed
+ esc_arg="X${arg}X"
+ case "$esc_tool" in
+ 'sed')
+ # mac sed does not support group-0, so pattern uses group-1
+ esc_arg="$(printf '%s' "$esc_arg" | sed -e 's@\([$"\\`]\)@\\\1@g')"
+ ;;
+ 'awk')
+ esc_arg="$(printf '%s' "$esc_arg" | awk '{ gsub(/\\/, "\\\\"); print }' )"
+ esc_arg="$(printf '%s' "$esc_arg" | awk '{ gsub(/\$/, "\\$"); print }' )"
+ esc_arg="$(printf '%s' "$esc_arg" | awk '{ gsub(/\"/, "\\\""); print }' )"
+ esc_arg="$(printf '%s' "$esc_arg" | awk '{ gsub(/`/, "\\`"); print }' )"
+ ;;
+# 'bash')
+# # does not depend upon `sed` or `echo` quirks
+# # tested with bash `[ -n "${BASH_VERSION}" ]`
+# # tested with zsh `[ -n "${ZSH_NAME}" ]`
+# # tested with ksh93+ `ksh_ver="$(echo "$KSH_VERSION" | grep -m 1 -o '[0-9]\+' | head -n 1)"; [ "$ksh_ver" -gt 88 ]`
+# # fails in ksh88, dash, ash
+# esc_arg="${esc_arg//\\/\\\\}" # must be first since later patterns introduce backslash chars
+# esc_arg="${esc_arg//\$/\\\$}"
+# esc_arg="${esc_arg//\"/\\\"}"
+# esc_arg="${esc_arg//\`/\\\`}"
+# ;;
+ '*')
+ echo "could not determine escaping tool"
+ exit 1
+ ;;
+ esac
+ # remove the padding Xs added above
+ esc_arg="${esc_arg#X}"
+ esc_arg="${esc_arg%X}"
quoted_arg="\"$esc_arg\""
+
+ if $ant_exec_debug
+ then
+ # using printf to avoid echo line continuation and escape interpretation
+ printf "arg : %s\n" "$arg"
+ printf "quoted_arg: %s\n" "$quoted_arg"
+ fi
ant_exec_args="$ant_exec_args $quoted_arg"
fi
done
@@ -337,7 +377,7 @@ else
fi
ant_exec_command="exec \"\$JAVACMD\" $ANT_OPTS -classpath \"\$LOCALCLASSPATH\" -Dant.home=\"\$ANT_HOME\" -Dant.library.dir=\"\$ANT_LIB\" $ant_sys_opts org.apache.tools.ant.launch.Launcher $ANT_ARGS -cp \"\$CLASSPATH\""
if $ant_exec_debug ; then
- echo $ant_exec_command $ant_exec_args
+ echo "$ant_exec_command $ant_exec_args"
fi
-eval $ant_exec_command $ant_exec_args
+eval "$ant_exec_command $ant_exec_args"