--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/components/bash/patches/bash42-029.patch Thu Dec 13 15:52:21 2012 -0800
@@ -0,0 +1,524 @@
+ BASH PATCH REPORT
+ =================
+
+Bash-Release: 4.2
+Patch-ID: bash42-029
+
+Bug-Reported-by: "Michael Kalisz" <[email protected]>
+Bug-Reference-ID: <[email protected]>
+Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2011-02/msg00274.html
+
+Bug-Description:
+
+Bash-4.2 tries to leave completed directory names as the user typed them,
+without expanding them to a full pathname. One effect of this is that
+shell variables used in pathnames being completed (e.g., $HOME) are left
+unchanged, but the `$' is quoted by readline because it is a special
+character to the shell.
+
+This patch introduces two things:
+
+1. A new shell option, `direxpand', which, if set, attempts to emulate the
+ bash-4.1 behavior of expanding words to full pathnames during
+ completion;
+2. A set of heuristics that reduce the number of times special characters
+ such as `$' are quoted when the directory name is not expanded.
+
+Patch (apply with `patch -p0'):
+
+diff -NrC 2 ../bash-4.2-patched/bashline.c ./bashline.c
+*** ../bash-4.2-patched/bashline.c 2011-01-16 15:32:47.000000000 -0500
+--- ./bashline.c 2012-05-07 16:27:18.000000000 -0400
+***************
+*** 122,125 ****
+--- 122,128 ----
+ static int bash_push_line __P((void));
+
++ static rl_icppfunc_t *save_directory_hook __P((void));
++ static void reset_directory_hook __P((rl_icppfunc_t *));
++
+ static void cleanup_expansion_error __P((void));
+ static void maybe_make_readline_line __P((char *));
+***************
+*** 244,251 ****
+--- 247,261 ----
+ int dircomplete_spelling = 0;
+
++ /* Expand directory names during word/filename completion. */
++ int dircomplete_expand = 0;
++ int dircomplete_expand_relpath = 0;
++
+ static char *bash_completer_word_break_characters = " \t\n\"'@><=;|&(:";
+ static char *bash_nohostname_word_break_characters = " \t\n\"'><=;|&(:";
+ /* )) */
+
++ static const char *default_filename_quote_characters = " \t\n\\\"'@<>=;|&()#$`?*[!:{~"; /*}*/
++ static char *custom_filename_quote_characters = 0;
++
+ static rl_hook_func_t *old_rl_startup_hook = (rl_hook_func_t *)NULL;
+
+***************
+*** 502,506 ****
+ /* Tell the completer that we might want to follow symbolic links or
+ do other expansion on directory names. */
+! rl_directory_rewrite_hook = bash_directory_completion_hook;
+
+ rl_filename_rewrite_hook = bash_filename_rewrite_hook;
+--- 512,516 ----
+ /* Tell the completer that we might want to follow symbolic links or
+ do other expansion on directory names. */
+! set_directory_hook ();
+
+ rl_filename_rewrite_hook = bash_filename_rewrite_hook;
+***************
+*** 530,534 ****
+
+ /* characters that need to be quoted when appearing in filenames. */
+! rl_filename_quote_characters = " \t\n\\\"'@<>=;|&()#$`?*[!:{~"; /*}*/
+
+ rl_filename_quoting_function = bash_quote_filename;
+--- 540,544 ----
+
+ /* characters that need to be quoted when appearing in filenames. */
+! rl_filename_quote_characters = default_filename_quote_characters;
+
+ rl_filename_quoting_function = bash_quote_filename;
+***************
+*** 565,570 ****
+ rl_attempted_completion_function = attempt_shell_completion;
+ rl_completion_entry_function = NULL;
+- rl_directory_rewrite_hook = bash_directory_completion_hook;
+ rl_ignore_some_completions_function = filename_completion_ignore;
+ }
+
+--- 575,582 ----
+ rl_attempted_completion_function = attempt_shell_completion;
+ rl_completion_entry_function = NULL;
+ rl_ignore_some_completions_function = filename_completion_ignore;
++ rl_filename_quote_characters = default_filename_quote_characters;
++
++ set_directory_hook ();
+ }
+
+***************
+*** 1280,1283 ****
+--- 1292,1298 ----
+ rl_ignore_some_completions_function = filename_completion_ignore;
+
++ rl_filename_quote_characters = default_filename_quote_characters;
++ set_directory_hook ();
++
+ /* Determine if this could be a command word. It is if it appears at
+ the start of the line (ignoring preceding whitespace), or if it
+***************
+*** 1592,1595 ****
+--- 1607,1616 ----
+ else
+ {
++ if (dircomplete_expand && dot_or_dotdot (filename_hint))
++ {
++ dircomplete_expand = 0;
++ set_directory_hook ();
++ dircomplete_expand = 1;
++ }
+ mapping_over = 4;
+ goto inner;
+***************
+*** 1792,1795 ****
+--- 1813,1819 ----
+ inner:
+ val = rl_filename_completion_function (filename_hint, istate);
++ if (mapping_over == 4 && dircomplete_expand)
++ set_directory_hook ();
++
+ istate = 1;
+
+***************
+*** 2694,2697 ****
+--- 2718,2767 ----
+ }
+
++ /* Functions to save and restore the appropriate directory hook */
++ /* This is not static so the shopt code can call it */
++ void
++ set_directory_hook ()
++ {
++ if (dircomplete_expand)
++ {
++ rl_directory_completion_hook = bash_directory_completion_hook;
++ rl_directory_rewrite_hook = (rl_icppfunc_t *)0;
++ }
++ else
++ {
++ rl_directory_rewrite_hook = bash_directory_completion_hook;
++ rl_directory_completion_hook = (rl_icppfunc_t *)0;
++ }
++ }
++
++ static rl_icppfunc_t *
++ save_directory_hook ()
++ {
++ rl_icppfunc_t *ret;
++
++ if (dircomplete_expand)
++ {
++ ret = rl_directory_completion_hook;
++ rl_directory_completion_hook = (rl_icppfunc_t *)NULL;
++ }
++ else
++ {
++ ret = rl_directory_rewrite_hook;
++ rl_directory_rewrite_hook = (rl_icppfunc_t *)NULL;
++ }
++
++ return ret;
++ }
++
++ static void
++ restore_directory_hook (hookf)
++ rl_icppfunc_t *hookf;
++ {
++ if (dircomplete_expand)
++ rl_directory_completion_hook = hookf;
++ else
++ rl_directory_rewrite_hook = hookf;
++ }
++
+ /* Handle symbolic link references and other directory name
+ expansions while hacking completion. This should return 1 if it modifies
+***************
+*** 2703,2720 ****
+ {
+ char *local_dirname, *new_dirname, *t;
+! int return_value, should_expand_dirname;
+ WORD_LIST *wl;
+ struct stat sb;
+
+! return_value = should_expand_dirname = 0;
+ local_dirname = *dirname;
+
+! if (mbschr (local_dirname, '$'))
+! should_expand_dirname = 1;
+ else
+ {
+ t = mbschr (local_dirname, '`');
+ if (t && unclosed_pair (local_dirname, strlen (local_dirname), "`") == 0)
+! should_expand_dirname = 1;
+ }
+
+--- 2773,2801 ----
+ {
+ char *local_dirname, *new_dirname, *t;
+! int return_value, should_expand_dirname, nextch, closer;
+ WORD_LIST *wl;
+ struct stat sb;
+
+! return_value = should_expand_dirname = nextch = closer = 0;
+ local_dirname = *dirname;
+
+! if (t = mbschr (local_dirname, '$'))
+! {
+! should_expand_dirname = '$';
+! nextch = t[1];
+! /* Deliberately does not handle the deprecated $[...] arithmetic
+! expansion syntax */
+! if (nextch == '(')
+! closer = ')';
+! else if (nextch == '{')
+! closer = '}';
+! else
+! nextch = 0;
+! }
+ else
+ {
+ t = mbschr (local_dirname, '`');
+ if (t && unclosed_pair (local_dirname, strlen (local_dirname), "`") == 0)
+! should_expand_dirname = '`';
+ }
+
+***************
+*** 2740,2743 ****
+--- 2821,2841 ----
+ dispose_words (wl);
+ local_dirname = *dirname;
++ /* XXX - change rl_filename_quote_characters here based on
++ should_expand_dirname/nextch/closer. This is the only place
++ custom_filename_quote_characters is modified. */
++ if (rl_filename_quote_characters && *rl_filename_quote_characters)
++ {
++ int i, j, c;
++ i = strlen (default_filename_quote_characters);
++ custom_filename_quote_characters = xrealloc (custom_filename_quote_characters, i+1);
++ for (i = j = 0; c = default_filename_quote_characters[i]; i++)
++ {
++ if (c == should_expand_dirname || c == nextch || c == closer)
++ continue;
++ custom_filename_quote_characters[j++] = c;
++ }
++ custom_filename_quote_characters[j] = '\0';
++ rl_filename_quote_characters = custom_filename_quote_characters;
++ }
+ }
+ else
+***************
+*** 2759,2762 ****
+--- 2857,2871 ----
+ }
+
++ /* no_symbolic_links == 0 -> use (default) logical view of the file system.
++ local_dirname[0] == '.' && local_dirname[1] == '/' means files in the
++ current directory (./).
++ local_dirname[0] == '.' && local_dirname[1] == 0 means relative pathnames
++ in the current directory (e.g., lib/sh).
++ XXX - should we do spelling correction on these? */
++
++ /* This is test as it was in bash-4.2: skip relative pathnames in current
++ directory. Change test to
++ (local_dirname[0] != '.' || (local_dirname[1] && local_dirname[1] != '/'))
++ if we want to skip paths beginning with ./ also. */
+ if (no_symbolic_links == 0 && (local_dirname[0] != '.' || local_dirname[1]))
+ {
+***************
+*** 2764,2767 ****
+--- 2873,2885 ----
+ int len1, len2;
+
++ /* If we have a relative path
++ (local_dirname[0] != '/' && local_dirname[0] != '.')
++ that is canonical after appending it to the current directory, then
++ temp1 = temp2+'/'
++ That is,
++ strcmp (temp1, temp2) == 0
++ after adding a slash to temp2 below. It should be safe to not
++ change those.
++ */
+ t = get_working_directory ("symlink-hook");
+ temp1 = make_absolute (local_dirname, t);
+***************
+*** 2798,2802 ****
+ }
+ }
+! return_value |= STREQ (local_dirname, temp2) == 0;
+ free (local_dirname);
+ *dirname = temp2;
+--- 2916,2928 ----
+ }
+ }
+!
+! /* dircomplete_expand_relpath == 0 means we want to leave relative
+! pathnames that are unchanged by canonicalization alone.
+! *local_dirname != '/' && *local_dirname != '.' == relative pathname
+! (consistent with general.c:absolute_pathname())
+! temp1 == temp2 (after appending a slash to temp2) means the pathname
+! is not changed by canonicalization as described above. */
+! if (dircomplete_expand_relpath || ((local_dirname[0] != '/' && local_dirname[0] != '.') && STREQ (temp1, temp2) == 0))
+! return_value |= STREQ (local_dirname, temp2) == 0;
+ free (local_dirname);
+ *dirname = temp2;
+***************
+*** 3003,3012 ****
+ orig_func = rl_completion_entry_function;
+ orig_attempt_func = rl_attempted_completion_function;
+- orig_dir_func = rl_directory_rewrite_hook;
+ orig_ignore_func = rl_ignore_some_completions_function;
+ orig_rl_completer_word_break_characters = rl_completer_word_break_characters;
+ rl_completion_entry_function = rl_filename_completion_function;
+ rl_attempted_completion_function = (rl_completion_func_t *)NULL;
+- rl_directory_rewrite_hook = (rl_icppfunc_t *)NULL;
+ rl_ignore_some_completions_function = filename_completion_ignore;
+ rl_completer_word_break_characters = " \t\n\"\'";
+--- 3129,3139 ----
+ orig_func = rl_completion_entry_function;
+ orig_attempt_func = rl_attempted_completion_function;
+ orig_ignore_func = rl_ignore_some_completions_function;
+ orig_rl_completer_word_break_characters = rl_completer_word_break_characters;
++
++ orig_dir_func = save_directory_hook ();
++
+ rl_completion_entry_function = rl_filename_completion_function;
+ rl_attempted_completion_function = (rl_completion_func_t *)NULL;
+ rl_ignore_some_completions_function = filename_completion_ignore;
+ rl_completer_word_break_characters = " \t\n\"\'";
+***************
+*** 3016,3023 ****
+ rl_completion_entry_function = orig_func;
+ rl_attempted_completion_function = orig_attempt_func;
+- rl_directory_rewrite_hook = orig_dir_func;
+ rl_ignore_some_completions_function = orig_ignore_func;
+ rl_completer_word_break_characters = orig_rl_completer_word_break_characters;
+
+ return r;
+ }
+--- 3143,3151 ----
+ rl_completion_entry_function = orig_func;
+ rl_attempted_completion_function = orig_attempt_func;
+ rl_ignore_some_completions_function = orig_ignore_func;
+ rl_completer_word_break_characters = orig_rl_completer_word_break_characters;
+
++ restore_directory_hook (orig_dir_func);
++
+ return r;
+ }
+diff -NrC 2 ../bash-4.2-patched/bashline.h ./bashline.h
+*** ../bash-4.2-patched/bashline.h 2009-01-04 14:32:22.000000000 -0500
+--- ./bashline.h 2012-05-07 16:27:18.000000000 -0400
+***************
+*** 34,41 ****
+--- 34,46 ----
+ extern int bash_re_edit __P((char *));
+
++ extern void bashline_set_event_hook __P((void));
++ extern void bashline_reset_event_hook __P((void));
++
+ extern int bind_keyseq_to_unix_command __P((char *));
+
+ extern char **bash_default_completion __P((const char *, int, int, int, int));
+
++ void set_directory_hook __P((void));
++
+ /* Used by programmable completion code. */
+ extern char *command_word_completion_function __P((const char *, int));
+diff -NrC 2 ../bash-4.2-patched/builtins/shopt.def ./builtins/shopt.def
+*** ../bash-4.2-patched/builtins/shopt.def 2010-07-02 22:42:44.000000000 -0400
+--- ./builtins/shopt.def 2012-05-07 16:27:18.000000000 -0400
+***************
+*** 62,65 ****
+--- 62,69 ----
+ #include "bashgetopt.h"
+
++ #if defined (READLINE)
++ # include "../bashline.h"
++ #endif
++
+ #if defined (HISTORY)
+ # include "../bashhist.h"
+***************
+*** 95,99 ****
+ extern int no_empty_command_completion;
+ extern int force_fignore;
+! extern int dircomplete_spelling;
+
+ extern int enable_hostname_completion __P((int));
+--- 99,103 ----
+ extern int no_empty_command_completion;
+ extern int force_fignore;
+! extern int dircomplete_spelling, dircomplete_expand;
+
+ extern int enable_hostname_completion __P((int));
+***************
+*** 122,125 ****
+--- 126,133 ----
+ #endif
+
++ #if defined (READLINE)
++ static int shopt_set_complete_direxpand __P((char *, int));
++ #endif
++
+ static int shopt_login_shell;
+ static int shopt_compat31;
+***************
+*** 151,154 ****
+--- 159,163 ----
+ { "compat41", &shopt_compat41, set_compatibility_level },
+ #if defined (READLINE)
++ { "direxpand", &dircomplete_expand, shopt_set_complete_direxpand },
+ { "dirspell", &dircomplete_spelling, (shopt_set_func_t *)NULL },
+ #endif
+***************
+*** 536,539 ****
+--- 545,559 ----
+ }
+
++ #if defined (READLINE)
++ static int
++ shopt_set_complete_direxpand (option_name, mode)
++ char *option_name;
++ int mode;
++ {
++ set_directory_hook ();
++ return 0;
++ }
++ #endif
++
+ #if defined (RESTRICTED_SHELL)
+ /* Don't allow the value of restricted_shell to be modified. */
+Binary files ../bash-4.2-patched/doc/._bashref.pdf and ./doc/._bashref.pdf differ
+diff -NrC 2 ../bash-4.2-patched/doc/bash.1 ./doc/bash.1
+*** ../bash-4.2-patched/doc/bash.1 2011-01-16 15:31:39.000000000 -0500
+--- ./doc/bash.1 2012-05-07 16:27:18.000000000 -0400
+***************
+*** 8949,8952 ****
+--- 8949,8962 ----
+ The default bash behavior remains as in previous versions.
+ .TP 8
++ .B direxpand
++ If set,
++ .B bash
++ replaces directory names with the results of word expansion when performing
++ filename completion. This changes the contents of the readline editing
++ buffer.
++ If not set,
++ .B bash
++ attempts to preserve what the user typed.
++ .TP 8
+ .B dirspell
+ If set,
+diff -NrC 2 ../bash-4.2-patched/doc/bashref.texi ./doc/bashref.texi
+*** ../bash-4.2-patched/doc/bashref.texi 2011-01-16 15:31:57.000000000 -0500
+--- ./doc/bashref.texi 2012-05-07 16:27:18.000000000 -0400
+***************
+*** 4536,4539 ****
+--- 4536,4546 ----
+ The default Bash behavior remains as in previous versions.
+
++ @item direxpand
++ If set, Bash
++ replaces directory names with the results of word expansion when performing
++ filename completion. This changes the contents of the readline editing
++ buffer.
++ If not set, Bash attempts to preserve what the user typed.
++
+ @item dirspell
+ If set, Bash
+diff -NrC 2 ../bash-4.2-patched/tests/shopt.right ./tests/shopt.right
+*** ../bash-4.2-patched/tests/shopt.right 2010-07-02 23:36:30.000000000 -0400
+--- ./tests/shopt.right 2012-05-07 16:27:18.000000000 -0400
+***************
+*** 13,16 ****
+--- 13,17 ----
+ shopt -u compat40
+ shopt -u compat41
++ shopt -u direxpand
+ shopt -u dirspell
+ shopt -u dotglob
+***************
+*** 69,72 ****
+--- 70,74 ----
+ shopt -u compat40
+ shopt -u compat41
++ shopt -u direxpand
+ shopt -u dirspell
+ shopt -u dotglob
+***************
+*** 102,105 ****
+--- 104,108 ----
+ compat40 off
+ compat41 off
++ direxpand off
+ dirspell off
+ dotglob off
+*** ../bash-4.2-patched/patchlevel.h Sat Jun 12 20:14:48 2010
+--- patchlevel.h Thu Feb 24 21:41:34 2011
+***************
+*** 26,30 ****
+ looks for to find the patch level (for the sccs version string). */
+
+! #define PATCHLEVEL 28
+
+ #endif /* _PATCHLEVEL_H_ */
+--- 26,30 ----
+ looks for to find the patch level (for the sccs version string). */
+
+! #define PATCHLEVEL 29
+
+ #endif /* _PATCHLEVEL_H_ */