New: [CLI simple alias](https://github.com/clicon/cligen/issues/112)
This commit is contained in:
Olof hagsand
parent
9ee55441ac
commit
aa4feee03e
4 changed files with 345 additions and 0 deletions
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@ -2086,3 +2086,207 @@ cli_process_control(clixon_handle h,
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cbuf_free(cb);
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return retval;
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}
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/*! Alias function
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*
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* @param[in] h Clixon handle
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* @param[in] cvv Vector of variables: function parameters
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* @param[in] argv Arguments given at the callback: this is the command to be executed
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* @retval 0 OK
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* @retval -1 Error
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* @see cliread_eval original fn
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*/
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int
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cli_alias_call(cligen_handle h,
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cvec *cvv,
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cvec *argv)
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{
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return cligen_alias_call(cli_cligen(h), cvv, argv);
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}
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/*! Define an alias CLI command, insert in top-level of parse-tree
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*
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* @param[in] h Clixon handle
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* @param[in] cvv Vector of variables: function parameters
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* @param[in] argv Arguments given at the callback: <name> <command> [<treename>]
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* <name> Name of variable containing alias name
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* <command> Name of variable containing alias command
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* <treename> Optional name of treename (mode), default is active pt
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* @retval 0 OK
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* @retval -1 Error
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* @code
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* alias <name:string> <command:rest>, alias_cb("name", "command");
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* @endcode
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* @see cli_aliasref_add add using a tree reference
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*/
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int
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cli_alias_add(clixon_handle h,
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cvec *cvv,
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cvec *argv)
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{
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int retval = -1;
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char *cvname;
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char *cvcommand;
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cg_var *cv;
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char *name;
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char *command;
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char *treename = NULL;
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int argi = 0;
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if (argv == NULL || cvec_len(argv) < 2 || cvec_len(argv) > 3){
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clixon_err(OE_PLUGIN, EINVAL, "Expected arguments: <name> <command> [<ptname>]");
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goto done;
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}
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/* Indirectopn of name argument */
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if ((cvname = cvec_i_str(argv, argi++)) == NULL){
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clixon_err(OE_PLUGIN, 0, "No <name> argument");
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goto done;
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}
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if ((cv = cvec_find_var(cvv, cvname)) == NULL){
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clixon_err(OE_PLUGIN, 0, "Expected name argument");
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goto done;
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}
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else
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name = cv_string_get(cv);
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/* Indirection of command argument */
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if ((cvcommand = cvec_i_str(argv, argi++)) == NULL){
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clixon_err(OE_PLUGIN, 0, "No <command> argument");
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goto done;
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}
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if ((cv = cvec_find_var(cvv, cvcommand)) == NULL){
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clixon_err(OE_PLUGIN, 0, "Expected command argument");
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goto done;
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}
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else
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command = cv_string_get(cv);
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/* Optional parse-tree name argument */
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if (cvec_len(argv) > argi)
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treename = cvec_i_str(argv, argi++);
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if (cligen_alias_add(cli_cligen(h), treename, name, NULL, command, cli_alias_call) < 0){
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clixon_err(OE_PLUGIN, errno, "Error adding alias %s", name);
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goto done;
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}
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retval = 0;
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done:
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return retval;
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}
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/*! Define an alias CLI command via a tree refernce, insert in top-level of parse-tree
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*
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* @param[in] h Clixon handle
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* @param[in] cvv Vector of variables: function parameters
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* @param[in] argv Arguments given at the callback: <name>
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* <name> Name of variable containing alias name
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* @retval 0 OK
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* @retval -1 Error
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* @code
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* aliasref <name:string> , aliasref_cb("name");
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* @endcode
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* @see cli_alias_add add a constant string command
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* @note Not generic implementation, assumes cmd string: <cmd> <name> <rest>
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*/
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int
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cli_aliasref_add(clixon_handle h,
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cvec *cvv,
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cvec *argv)
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{
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int retval = -1;
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cg_var *cv;
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char *name;
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char *command =NULL;
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char *treename = NULL;
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/* argv handling is ad-hoc, unkown argv list */
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if ((cv = cvec_find_var(cvv, "name")) == NULL){
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clixon_err(OE_PLUGIN, 0, "Expected name argument");
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goto done;
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}
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else
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name = cv_string_get(cv);
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if ((command = cvec_i_str(cvv, 0)) == NULL){
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clixon_err(OE_PLUGIN, 0, "Expected cvv[0]");
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goto done;
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}
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/* skip fisrt two elements */
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if ((command = index(command, ' ')) == NULL) {
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clixon_err(OE_PLUGIN, 0, "No command string");
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goto done;
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}
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command++;
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if ((command = index(command, ' ')) == NULL) {
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clixon_err(OE_PLUGIN, 0, "No command string");
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goto done;
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}
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command++;
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if (cligen_alias_add(cli_cligen(h), treename, name, NULL, command, cli_alias_call) < 0){
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clixon_err(OE_PLUGIN, errno, "Error adding alias %s", name);
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goto done;
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}
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retval = 0;
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done:
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return retval;
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}
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int
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cli_alias_show(clixon_handle h,
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cvec *cvv,
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cvec *argv)
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{
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int retval = -1;
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pt_head *ph;
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char *phname = NULL;
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cligen_handle ch = cli_cligen(h);
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int i;
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cg_obj *co;
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parse_tree *pt;
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cg_callback *cc;
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cg_var *cv;
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cbuf *cb = NULL;
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if ((cb = cbuf_new()) == NULL){
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clixon_err(OE_UNIX, errno, "cbuf_new");
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goto done;
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}
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if (phname == NULL) {
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if ((ph = cligen_ph_active_get(ch)) == NULL){
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errno = ENOENT;
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goto done;
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}
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}
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else {
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if ((ph = cligen_ph_find(ch, phname)) == NULL) {
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errno = ENOENT;
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goto done;
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}
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}
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if ((pt = cligen_ph_parsetree_get(ph)) == NULL){
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errno = ENOENT;
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goto done;
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}
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for (i=0; i<pt_len_get(pt); i++){
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if ((co = pt_vec_i_get(pt, i)) == NULL)
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continue;
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if (co->co_type == CO_EMPTY)
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continue;
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if (co_flags_get(co, CO_FLAGS_ALIAS) == 0x0)
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continue;
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cligen_output(stdout, "%s:", co->co_command);
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if ((cc = co->co_callbacks) != NULL && cc->cc_cvec){
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cbuf_reset(cb);
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cv = NULL;
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while ((cv = cvec_each(cc->cc_cvec, cv)) != NULL) {
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cprintf(cb, " ");
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if (cv2cbuf(cv, cb) < 0){
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clixon_err(OE_UNIX, errno, "cv2cbuf");
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goto done;
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}
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}
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cligen_output(stdout, "%s\n", cbuf_get(cb));
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}
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}
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retval = 0;
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done:
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if (cb)
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cbuf_free(cb);
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return retval;
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}
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