Jim Porter f3408af0a3 Make '$?' and '$$' variables more consistent in Eshell ... Previously, '$?' (last exit code) was only useful for external commands, and '$$' (last result) was only useful for Lisp commands. * lisp/eshell/esh-cmd.el (eshell-lisp-form-nil-is-failure): New option. (eshell-lisp-command): Set last exit code to 1 when the command signals an error, and 2 if it returns nil (for Lisp forms only). * lisp/eshell/esh-proc.el (eshell-sentinel): Set last result to t if the command succeeded. * test/lisp/eshell/esh-cmd-tests.el (esh-cmd-test/while-loop-lisp-form, esh-cmd-test/until-loop-lisp-form) (esh-cmd-test/if-else-statement-lisp-form) (esh-cmd-test/if-else-statement-lisp-form-2) (esh-cmd-test/unless-else-statement-lisp-form): New tests. * test/lisp/eshell/esh-var-tests.el (esh-var-test/last-status-var-lisp-command) (esh-var-test/last-status-var-lisp-form) (esh-var-test/last-status-var-lisp-form-2) (esh-var-test/last-status-var-ext-cmd) (esh-var-test/last-status-var-ext-cmd): New tests. (esh-var-test/last-result-var2): Rename from this... ( esh-var-test/last-result-var-twice): ... to this. * doc/misc/eshell.texi (Variables): Update documentation about '$?' and '$$'. (Control Flow): Mention that '(lisp forms)' can be used as conditionals. * etc/NEWS: Announce this change (bug#57129).		2022-08-12 22:07:13 -07:00
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em-alias-tests.el	Ensure Eshell variable aliases properly handle indexing	2022-07-12 15:11:00 +02:00
em-basic-tests.el	Add tests for Eshell's umask command	2022-03-29 16:50:45 +02:00
em-dirs-tests.el	Ensure Eshell variable aliases properly handle indexing	2022-07-12 15:11:00 +02:00
em-extpipe-tests.el	When closing an Eshell process target, send EOF three times	2022-06-26 18:27:20 +02:00
em-glob-tests.el	Make Eshell globs ending in "/" match directories only	2022-06-26 16:52:38 +02:00
em-hist-tests.el	Merge from origin/emacs-28	2022-01-01 07:03:03 -05:00
em-ls-tests.el	Merge from origin/emacs-28	2022-01-01 07:03:03 -05:00
em-pred-tests.el	; Improve time-convert call in recently changed test	2022-08-07 13:16:53 +02:00
em-script-tests.el	Improve tests/organization for built-in variables	2022-07-12 15:10:54 +02:00
em-tramp-tests.el	Adapt em-tramp-tests.el	2022-02-06 18:50:16 +01:00
esh-cmd-tests.el	Make '$?' and '$$' variables more consistent in Eshell	2022-08-12 22:07:13 -07:00
esh-opt-tests.el	Treat "-" as a positional arg in 'eshell-eval-using-options'	2022-01-25 13:28:48 +01:00
esh-proc-tests.el	Allow creating processes where only one of stdin or stdout is a PTY	2022-08-05 17:58:54 -07:00
esh-var-tests.el	Make '$?' and '$$' variables more consistent in Eshell	2022-08-12 22:07:13 -07:00
eshell-tests-helpers.el	Handle escaped characters in Eshell special references (e.g. buffers)	2022-05-01 20:41:23 +02:00
eshell-tests.el	Only set Eshell execution result metavariables when non-nil	2022-08-12 22:07:13 -07:00