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ecfa6b2734
putty-source/unix
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Simon Tatham ecfa6b2734 Don't print long usage messages on a command-line error. 
In the course of debugging the command-line argument refactoring in
previous commits, I found I wasn't quite sure whether PSCP thought I'd
given it too many arguments, or too few, because it didn't print an
error message saying which: it just printed its giant usage message.

Over the last few years I've come to the belief that this is Just
Wrong anyway. Printing the whole of a giant help message should only
be done when the user asked for it: otherwise, print a short and
to-the-point error, and maybe _suggest_ how to get help, but scrolling
everything else off the user's screen is not a good response to a
typo. I wrote this thought up more fully last year:

https://www.chiark.greenend.org.uk/~sgtatham/quasiblog/stop-helping/

So, time to practise what I preach! The PuTTY tools now follow the
'Stop helping!' principle. You can get full help by saying --help.

Also, when we do print the help, we now exit(0) rather than exit(1),
because there's no reason to report failure: we successfully did what
the user asked us for.
2024-09-26 11:30:07 +01:00
..
stubs Add lots more stub versions of standard code modules. 2023-05-29 15:54:34 +01:00
utils Add and use cmdline_arg_to_filename(). 2024-09-26 11:30:07 +01:00
agent-client.c Formatting: realign labels and case/default statements. 2022-08-03 20:48:46 +01:00
agent-socket.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
askpass.c Rewrite some manual char-buffer-handling code. 2022-09-14 16:10:29 +01:00
cliloop.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
CMakeLists.txt New abstraction for command-line arguments. 2024-09-26 11:30:07 +01:00
columns.c GTK: fix y computation in align_next_to. 2022-09-06 11:39:01 +01:00
columns.h Improve the align_next_to mechanism. 2022-05-05 19:04:34 +01:00
config-gtk.c Replace integer context2 encoding in conf_editbox_handler. 2022-09-01 20:43:23 +01:00
config-unix.c Restructure dlgcontrol as a struct with an anon union. 2022-05-01 10:00:32 +01:00
console.c Merge tag '0.80'. 2023-12-18 14:47:48 +00:00
dialog.c Add UTF-8 versions of dlg_editbox_{get,set}. 2024-09-26 11:30:07 +01:00
fd-socket.c Centralise stub plug/socket functions. 2024-06-29 12:19:35 +01:00
gss.c Unix static GSSAPI: fix an uninitialised structure field. 2022-09-17 07:55:05 +01:00
gtk-common.c Update source file names in comments and docs. 2022-01-22 15:51:31 +00:00
gtkcompat.h Fix build failure on Debian bullseye from last commit. 2024-09-08 19:05:45 +01:00
gtkmisc.h Convert a lot of 'int' variables to 'bool'. 2018-11-03 13:45:00 +00:00
keygen-noise.c Update source file names in comments and docs. 2022-01-22 15:51:31 +00:00
local-proxy.c New facility, platform_start_subprocess. 2022-09-01 20:43:23 +01:00
main-gtk-application.c Fix build failure on Debian bullseye from last commit. 2024-09-08 19:05:45 +01:00
main-gtk-simple.c Add and use cmdline_arg_to_filename(). 2024-09-26 11:30:07 +01:00
network.c Pass the calling Socket to plug_log. 2024-06-29 12:00:12 +01:00
no-gtk.c Update source file names in comments and docs. 2022-01-22 15:51:31 +00:00
noaskpass.c Better header comment for noaskpass.c. 2022-05-20 19:35:59 +01:00
noise.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
osxlaunch.c osxlaunch: stop setting DYLD_LIBRARY_PATH. 2017-12-20 10:04:02 +00:00
pageant.c Don't print long usage messages on a command-line error. 2024-09-26 11:30:07 +01:00
peerinfo.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
platform.h New abstraction for command-line arguments. 2024-09-26 11:30:07 +01:00
plink.c Don't print long usage messages on a command-line error. 2024-09-26 11:30:07 +01:00
printing.c Rename 'ret' variables passed from allocation to return. 2022-09-14 16:10:29 +01:00
procnet.c Generalise strbuf_catf() into put_fmt(). 2021-11-19 11:32:47 +00:00
psocks.c New abstraction for command-line arguments. 2024-09-26 11:30:07 +01:00
psusan.c Pass the calling Socket to plug_log. 2024-06-29 12:00:12 +01:00
pterm-config-xpm.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
pterm-xpm.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
pterm.bundle OS X makefile: stop depending on JHBUILD_PREFIX. 2017-11-26 11:45:48 +00:00
pterm.c Update source file names in comments and docs. 2022-01-22 15:51:31 +00:00
pterm.plist Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
pty.c Rewrite some manual char-buffer-handling code. 2022-09-14 16:10:29 +01:00
putty-config-xpm.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
putty-xpm.c Rename most of the platform source files. 2021-04-26 18:00:01 +01:00
putty.bundle OS X makefile: stop depending on JHBUILD_PREFIX. 2017-11-26 11:45:48 +00:00
putty.c Update source file names in comments and docs. 2022-01-22 15:51:31 +00:00
putty.plist Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
serial.c Add memsets after allocation of all Backend implementors. 2021-10-30 17:28:28 +01:00
sftp.c New abstraction for command-line arguments. 2024-09-26 11:30:07 +01:00
sftpserver.c Fix build failure on systems without fstatat. 2023-04-19 14:28:36 +01:00
sharing.c Pass an Interactor to new_connection(). 2021-10-30 18:19:56 +01:00
storage.c Rewrite some manual char-buffer-handling code. 2022-09-14 16:10:29 +01:00
unicode.c Rework Unicode conversion APIs to use a BinarySink. 2024-09-26 11:30:07 +01:00
unifont.c Rework Unicode conversion APIs to use a BinarySink. 2024-09-26 11:30:07 +01:00
unifont.h Update source file names in comments and docs. 2022-01-22 15:51:31 +00:00
uppity.c Pass the calling Socket to plug_log. 2024-06-29 12:00:12 +01:00
uxsel.c Update source file names in comments and docs. 2022-01-22 15:51:31 +00:00
window.c Rework Unicode conversion APIs to use a BinarySink. 2024-09-26 11:30:07 +01:00
x11.c Make x11_get_auth_from_authfile take a Filename. 2023-05-29 15:41:50 +01:00
x11misc.h Update source file names in comments and docs. 2022-01-22 15:51:31 +00:00