Commit 428fe61a authored by Stefan Monnier's avatar Stefan Monnier
Browse files

* lisp/pcmpl-gnu.el (pcmpl-gnu-with-file-buffer): New macro.

(pcmpl-gnu-tar-buffer): Remove.
(pcmpl-gnu-with-file-buffer): Use it to avoid leaving the tar's buffer
avoid.  Make sure pcomplete-suffix-list is only changed temporarily.
Don't look inside the tar's file is it's too large.

Fixes: debbugs:9643
parent 51553db6
2011-10-02 Stefan Monnier <monnier@iro.umontreal.ca>
* pcmpl-gnu.el (pcmpl-gnu-with-file-buffer): New macro (bug#9643).
(pcmpl-gnu-tar-buffer): Remove.
(pcmpl-gnu-with-file-buffer): Use it to avoid leaving the tar's buffer
avoid. Make sure pcomplete-suffix-list is only changed temporarily.
Don't look inside the tar's file is it's too large.
2011-10-01 Chong Yidong <cyd@stupidchicken.com>
* cus-edit.el (custom-mode-map):
......
......@@ -128,161 +128,174 @@
:type 'regexp
:group 'pcmpl-gnu)
(defvar pcmpl-gnu-tar-buffer nil)
;; Only used in tar-mode buffers.
(defvar tar-parse-info)
(declare-function tar-header-name "tar-mode" t t)
(defmacro pcmpl-gnu-with-file-buffer (file &rest body)
"Run BODY inside a buffer visiting FILE."
(declare (debug t) (indent 1))
(let ((exist (make-symbol "exist"))
(filesym (make-symbol "file"))
(buf (make-symbol "buf")))
`(let* ((,filesym ,file)
(,exist (find-buffer-visiting ,filesym))
(,buf (or ,exist (find-file-noselect ,filesym))))
(unwind-protect
(with-current-buffer ,buf
,@body)
(when (and (not ,exist) (buffer-live-p ,buf))
(kill-buffer ,buf))))))
;;;###autoload
(defun pcomplete/tar ()
"Completion for the GNU tar utility."
;; options that end in an equal sign will want further completion...
(let (saw-option complete-within)
(setq pcomplete-suffix-list (cons ?= pcomplete-suffix-list))
(while (pcomplete-match "^-" 0)
(setq saw-option t)
(if (pcomplete-match "^--" 0)
(if (pcomplete-match "^--\\([^= \t\n\f]*\\)\\'" 0)
(pcomplete-here*
'("--absolute-names"
"--after-date="
"--append"
"--atime-preserve"
"--backup"
"--block-number"
"--blocking-factor="
"--catenate"
"--checkpoint"
"--compare"
"--compress"
"--concatenate"
"--confirmation"
"--create"
"--delete"
"--dereference"
"--diff"
"--directory="
"--exclude="
"--exclude-from="
"--extract"
"--file="
"--files-from="
"--force-local"
"--get"
"--group="
"--gzip"
"--help"
"--ignore-failed-read"
"--ignore-zeros"
"--incremental"
"--info-script="
"--interactive"
"--keep-old-files"
"--label="
"--list"
"--listed-incremental"
"--mode="
"--modification-time"
"--multi-volume"
"--new-volume-script="
"--newer="
"--newer-mtime"
"--no-recursion"
"--null"
"--numeric-owner"
"--old-archive"
"--one-file-system"
"--owner="
"--portability"
"--posix"
"--preserve"
"--preserve-order"
"--preserve-permissions"
"--read-full-records"
"--record-size="
"--recursive-unlink"
"--remove-files"
"--rsh-command="
"--same-order"
"--same-owner"
"--same-permissions"
"--sparse"
"--starting-file="
"--suffix="
"--tape-length="
"--to-stdout"
"--totals"
"--uncompress"
"--ungzip"
"--unlink-first"
"--update"
"--use-compress-program="
"--verbose"
"--verify"
"--version"
"--volno-file=")))
(pcomplete-opt "01234567ABCFGKLMNOPRSTUVWXZbcdfghiklmoprstuvwxz"))
(cond
((pcomplete-match "\\`--after-date=" 0)
(pcomplete-here*))
((pcomplete-match "\\`--backup=" 0)
(pcomplete-here*))
((pcomplete-match "\\`--blocking-factor=" 0)
(pcomplete-here*))
((pcomplete-match "\\`--directory=\\(.*\\)" 0)
(pcomplete-here* (pcomplete-dirs)
(pcomplete-match-string 1 0)))
((pcomplete-match "\\`--exclude-from=\\(.*\\)" 0)
(pcomplete-here* (pcomplete-entries)
(pcomplete-match-string 1 0)))
((pcomplete-match "\\`--exclude=" 0)
(pcomplete-here*))
((pcomplete-match "\\`--\\(extract\\|list\\)\\'" 0)
(setq complete-within t))
((pcomplete-match "\\`--file=\\(.*\\)" 0)
(pcomplete-here* (pcomplete-dirs-or-entries pcmpl-gnu-tarfile-regexp)
(pcomplete-match-string 1 0)))
((pcomplete-match "\\`--files-from=\\(.*\\)" 0)
(pcomplete-here* (pcomplete-entries)
(pcomplete-match-string 1 0)))
((pcomplete-match "\\`--group=\\(.*\\)" 0)
(pcomplete-here* (pcmpl-unix-group-names)
(pcomplete-match-string 1 0)))
((pcomplete-match "\\`--info-script=\\(.*\\)" 0)
(pcomplete-here* (pcomplete-entries)
(pcomplete-match-string 1 0)))
((pcomplete-match "\\`--label=" 0)
(pcomplete-here*))
((pcomplete-match "\\`--mode=" 0)
(pcomplete-here*))
((pcomplete-match "\\`--new-volume-script=\\(.*\\)" 0)
(pcomplete-here* (pcomplete-entries)
(pcomplete-match-string 1 0)))
((pcomplete-match "\\`--newer=" 0)
(pcomplete-here*))
((pcomplete-match "\\`--owner=\\(.*\\)" 0)
(pcomplete-here* (pcmpl-unix-user-names)
(pcomplete-match-string 1 0)))
((pcomplete-match "\\`--record-size=" 0)
(pcomplete-here*))
((pcomplete-match "\\`--rsh-command=\\(.*\\)" 0)
(pcomplete-here* (funcall pcomplete-command-completion-function)
(pcomplete-match-string 1 0)))
((pcomplete-match "\\`--starting-file=\\(.*\\)" 0)
(pcomplete-here* (pcomplete-entries)
(pcomplete-match-string 1 0)))
((pcomplete-match "\\`--suffix=" 0)
(pcomplete-here*))
((pcomplete-match "\\`--tape-length=" 0)
(pcomplete-here*))
((pcomplete-match "\\`--use-compress-program=\\(.*\\)" 0)
(pcomplete-here* (funcall pcomplete-command-completion-function)
(pcomplete-match-string 1 0)))
((pcomplete-match "\\`--volno-file=\\(.*\\)" 0)
(pcomplete-here* (pcomplete-entries)
(pcomplete-match-string 1 0)))))
(setq pcomplete-suffix-list (cdr pcomplete-suffix-list))
(let ((pcomplete-suffix-list (cons ?= pcomplete-suffix-list)))
(while (pcomplete-match "^-" 0)
(setq saw-option t)
(if (pcomplete-match "^--" 0)
(if (pcomplete-match "^--\\([^= \t\n\f]*\\)\\'" 0)
;; FIXME: Extract this list from "tar --help".
(pcomplete-here*
'("--absolute-names"
"--after-date="
"--append"
"--atime-preserve"
"--backup"
"--block-number"
"--blocking-factor="
"--catenate"
"--checkpoint"
"--compare"
"--compress"
"--concatenate"
"--confirmation"
"--create"
"--delete"
"--dereference"
"--diff"
"--directory="
"--exclude="
"--exclude-from="
"--extract"
"--file="
"--files-from="
"--force-local"
"--get"
"--group="
"--gzip"
"--help"
"--ignore-failed-read"
"--ignore-zeros"
"--incremental"
"--info-script="
"--interactive"
"--keep-old-files"
"--label="
"--list"
"--listed-incremental"
"--mode="
"--modification-time"
"--multi-volume"
"--new-volume-script="
"--newer="
"--newer-mtime"
"--no-recursion"
"--null"
"--numeric-owner"
"--old-archive"
"--one-file-system"
"--owner="
"--portability"
"--posix"
"--preserve"
"--preserve-order"
"--preserve-permissions"
"--read-full-records"
"--record-size="
"--recursive-unlink"
"--remove-files"
"--rsh-command="
"--same-order"
"--same-owner"
"--same-permissions"
"--sparse"
"--starting-file="
"--suffix="
"--tape-length="
"--to-stdout"
"--totals"
"--uncompress"
"--ungzip"
"--unlink-first"
"--update"
"--use-compress-program="
"--verbose"
"--verify"
"--version"
"--volno-file=")))
(pcomplete-opt "01234567ABCFGKLMNOPRSTUVWXZbcdfghiklmoprstuvwxz"))
(cond
((pcomplete-match "\\`--after-date=" 0)
(pcomplete-here*))
((pcomplete-match "\\`--backup=" 0)
(pcomplete-here*))
((pcomplete-match "\\`--blocking-factor=" 0)
(pcomplete-here*))
((pcomplete-match "\\`--directory=\\(.*\\)" 0)
(pcomplete-here* (pcomplete-dirs)
(pcomplete-match-string 1 0)))
((pcomplete-match "\\`--exclude-from=\\(.*\\)" 0)
(pcomplete-here* (pcomplete-entries)
(pcomplete-match-string 1 0)))
((pcomplete-match "\\`--exclude=" 0)
(pcomplete-here*))
((pcomplete-match "\\`--\\(extract\\|list\\)\\'" 0)
(setq complete-within t))
((pcomplete-match "\\`--file=\\(.*\\)" 0)
(pcomplete-here* (pcomplete-dirs-or-entries pcmpl-gnu-tarfile-regexp)
(pcomplete-match-string 1 0)))
((pcomplete-match "\\`--files-from=\\(.*\\)" 0)
(pcomplete-here* (pcomplete-entries)
(pcomplete-match-string 1 0)))
((pcomplete-match "\\`--group=\\(.*\\)" 0)
(pcomplete-here* (pcmpl-unix-group-names)
(pcomplete-match-string 1 0)))
((pcomplete-match "\\`--info-script=\\(.*\\)" 0)
(pcomplete-here* (pcomplete-entries)
(pcomplete-match-string 1 0)))
((pcomplete-match "\\`--label=" 0)
(pcomplete-here*))
((pcomplete-match "\\`--mode=" 0)
(pcomplete-here*))
((pcomplete-match "\\`--new-volume-script=\\(.*\\)" 0)
(pcomplete-here* (pcomplete-entries)
(pcomplete-match-string 1 0)))
((pcomplete-match "\\`--newer=" 0)
(pcomplete-here*))
((pcomplete-match "\\`--owner=\\(.*\\)" 0)
(pcomplete-here* (pcmpl-unix-user-names)
(pcomplete-match-string 1 0)))
((pcomplete-match "\\`--record-size=" 0)
(pcomplete-here*))
((pcomplete-match "\\`--rsh-command=\\(.*\\)" 0)
(pcomplete-here* (funcall pcomplete-command-completion-function)
(pcomplete-match-string 1 0)))
((pcomplete-match "\\`--starting-file=\\(.*\\)" 0)
(pcomplete-here* (pcomplete-entries)
(pcomplete-match-string 1 0)))
((pcomplete-match "\\`--suffix=" 0)
(pcomplete-here*))
((pcomplete-match "\\`--tape-length=" 0)
(pcomplete-here*))
((pcomplete-match "\\`--use-compress-program=\\(.*\\)" 0)
(pcomplete-here* (funcall pcomplete-command-completion-function)
(pcomplete-match-string 1 0)))
((pcomplete-match "\\`--volno-file=\\(.*\\)" 0)
(pcomplete-here* (pcomplete-entries)
(pcomplete-match-string 1 0))))))
(unless saw-option
(pcomplete-here
(mapcar 'char-to-string
......@@ -291,15 +304,16 @@
(if (pcomplete-match "[xt]" 'first 1)
(setq complete-within t)))
(pcomplete-here (pcomplete-dirs-or-entries pcmpl-gnu-tarfile-regexp))
(setq pcmpl-gnu-tar-buffer (find-file-noselect (pcomplete-arg 1)))
(while (pcomplete-here
(if complete-within
(with-current-buffer pcmpl-gnu-tar-buffer
(mapcar
(function
(lambda (entry)
(tar-header-name entry)))
tar-parse-info))
(if (and complete-within
(let* ((fa (file-attributes (pcomplete-arg 1)))
(size (nth 7 fa)))
(and (numberp size)
(< size large-file-warning-threshold))))
(completion-table-dynamic
(lambda (string)
(pcmpl-gnu-with-file-buffer (pcomplete-arg 1)
(mapcar #'tar-header-name tar-parse-info))))
(pcomplete-entries))
nil 'identity))))
......
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