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https://github.com/MidnightCommander/mc
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src/filemanager/ext.c: Added ability to export global variables to external programs called from mc.ext file.
Signed-off-by: Slava Zanko <slavazanko@gmail.com>
This commit is contained in:
Slava Zanko
parent
3b3a1da8ad
commit
d14f481785
@ -40,7 +40,9 @@
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# command is any one-line shell command, with the following substitutions:
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#
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# %% -> % character
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# %p -> name of the current file (without path, but pwd is its path)
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# %p -> name of the current file (without path, but pwd is its path).
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# Also provided to external application as MC_EXT_BASENAME
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# global variable
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# %f -> name of the current file. Unlike %p, if file is located on a
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# non-local virtual filesystem, i.e. either tarfs or ftpfs,
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# then the file will be temporarily copied into a local directory
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@ -48,10 +50,18 @@
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# If you don't want to get a local copy and want to get the
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# virtual fs path (like /#ftp:ftp.cvut.cz/pub/hungry/xword), then
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# use %d/%p instead of %f.
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# Also provided to external application as MC_EXT_FILENAME
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# global variable
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# %d -> name of the current directory (pwd, without trailing slash)
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# Also provided to external application as MC_EXT_CURRENTDIR
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# global variable
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# %s -> "selected files", i.e. space separated list of tagged files if any
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# or name of the current file
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# or name of the current file.
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# Also provided to external application as MC_EXT_SELECTED
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# global variable
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# %t -> list of tagged files
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# Also provided to external application as MC_EXT_ONLYTAGGED
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# global variable
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# %u -> list of tagged files (they'll be untaged after the command)
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#
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# (If these 6 letters are in uppercase, they refer to the other panel.
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@ -94,6 +94,7 @@ static quote_func_t quote_func = name_quote;
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static gboolean run_view = FALSE;
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static gboolean is_cd = FALSE;
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static gboolean written_nonspace = FALSE;
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static gboolean do_local_copy = FALSE;
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/*** file scope functions ************************************************************************/
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/* --------------------------------------------------------------------------------------------- */
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@ -119,7 +120,7 @@ exec_cleanup_file_name (vfs_path_t * filename_vpath, gboolean has_changed)
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/* --------------------------------------------------------------------------------------------- */
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static char *
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exec_get_file_name (gboolean do_local_copy, vfs_path_t * filename_vpath)
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exec_get_file_name (vfs_path_t * filename_vpath)
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{
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if (!do_local_copy)
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return quote_func (vfs_path_get_last_path_str (filename_vpath), 0);
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@ -140,19 +141,60 @@ exec_get_file_name (gboolean do_local_copy, vfs_path_t * filename_vpath)
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/* --------------------------------------------------------------------------------------------- */
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static char *
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exec_get_export_variables (vfs_path_t * filename_vpath)
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{
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char *text;
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GString *export_vars_string;
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size_t i;
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/* *INDENT-OFF* */
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struct
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{
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const char symbol;
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const char *name;
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} export_variables[] = {
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{'p', "MC_EXT_BASENAME"},
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{'d', "MC_EXT_CURRENTDIR"},
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{'s', "MC_EXT_SELECTED"},
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{'t', "MC_EXT_ONLYTAGGED"},
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{'\0', NULL}
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};
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/* *INDENT-ON* */
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text = exec_get_file_name (filename_vpath);
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if (text == NULL)
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return NULL;
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export_vars_string = g_string_new ("MC_EXT_FILENAME=");
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g_string_append_printf (export_vars_string, "\"%s\"\nexport MC_EXT_FILENAME\n", text);
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g_free (text);
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for (i = 0; export_variables[i].name != NULL; i++)
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{
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text = expand_format (NULL, export_variables[i].symbol, TRUE);
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if (text != NULL)
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{
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g_string_append_printf (export_vars_string,
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"%s=\"%s\"\nexport %s\n", export_variables[i].name, text,
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export_variables[i].name);
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g_free (text);
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}
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}
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return g_string_free (export_vars_string, FALSE);
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}
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/* --------------------------------------------------------------------------------------------- */
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static char *
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exec_make_shell_string (const char *lc_data, vfs_path_t * filename_vpath)
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{
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GString *shell_string = g_string_new ("");
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char lc_prompt[80];
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GString *shell_string;
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char lc_prompt[80] = "\0";
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gboolean parameter_found = FALSE;
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gboolean expand_prefix_found = FALSE;
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gboolean do_local_copy;
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/* Avoid making a local copy if we are doing a cd */
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do_local_copy = !vfs_file_is_local (filename_vpath);
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lc_prompt[0] = '\0';
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shell_string = g_string_new ("");
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for (; *lc_data != '\0' && *lc_data != '\n'; lc_data++)
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{
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@ -204,7 +246,6 @@ exec_make_shell_string (const char *lc_data, vfs_path_t * filename_vpath)
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}
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else
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{
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i = check_format_cd (lc_data);
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if (i > 0)
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{
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@ -231,7 +272,7 @@ exec_make_shell_string (const char *lc_data, vfs_path_t * filename_vpath)
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text = expand_format (NULL, *lc_data, !is_cd);
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else
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{
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text = exec_get_file_name (do_local_copy, filename_vpath);
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text = exec_get_file_name (filename_vpath);
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if (text == NULL)
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{
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g_string_free (shell_string, TRUE);
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@ -316,7 +357,6 @@ exec_extension_view (char *cmd, vfs_path_t * filename_vpath, int *move_dir, int
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mcview_default_nroff_flag = def_nroff_flag;
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dialog_switch_process_pending ();
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}
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/* --------------------------------------------------------------------------------------------- */
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@ -350,7 +390,7 @@ exec_extension_cd (void)
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static void
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exec_extension (const char *filename, const char *lc_data, int *move_dir, int start_line)
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{
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char *shell_string;
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char *shell_string, *export_variables;
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vfs_path_t *temp_file_name_vpath = NULL;
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int cmd_file_fd;
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FILE *cmd_file;
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@ -369,6 +409,9 @@ exec_extension (const char *filename, const char *lc_data, int *move_dir, int st
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filename_vpath = vfs_path_from_str (filename);
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/* Avoid making a local copy if we are doing a cd */
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do_local_copy = !vfs_file_is_local (filename_vpath);
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shell_string = exec_make_shell_string (lc_data, filename_vpath);
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if (shell_string == NULL)
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@ -381,7 +424,6 @@ exec_extension (const char *filename, const char *lc_data, int *move_dir, int st
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goto ret;
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}
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/*
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* All commands should be run in /bin/sh regardless of user shell.
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* To do that, create temporary shell script and run it.
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@ -400,6 +442,13 @@ exec_extension (const char *filename, const char *lc_data, int *move_dir, int st
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cmd_file = fdopen (cmd_file_fd, "w");
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fputs ("#! /bin/sh\n\n", cmd_file);
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export_variables = exec_get_export_variables (filename_vpath);
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if (export_variables != NULL)
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{
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fprintf (cmd_file, "%s\n", export_variables);
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g_free (export_variables);
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}
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fputs (shell_string, cmd_file);
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g_free (shell_string);
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@ -439,8 +488,6 @@ exec_extension (const char *filename, const char *lc_data, int *move_dir, int st
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if (run_view)
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exec_extension_view (cmd, filename_vpath, move_dir, start_line, temp_file_name_vpath);
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else if (is_cd)
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exec_extension_cd ();
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else
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{
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shell_execute (cmd, EXECUTE_INTERNAL);
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