A workaround for #3489. Code in `__rclone_custom_func` relies on process substitutions `<(...)` to preserve changes of variables within `while` bodies, which is not supported in the posix mode.
In f544234 we removed the global flags from each command as it was
making each page very big and causing 1000s of lines of duplication in
the man page.
This change adds a new flags page with all the global flags on and
links each command page to it.
Fixes#3273
The previous behavior of the remotes completion was that only
alphanumeric characters were allowed in a remote name. This limitation
has been lifted somewhat by #2985, which also allowed an underscore.
With the new implementation introduced in this commit, the completion of
the remote name has been simplified: If there is no colon (":") in the
current word, then complete remote name. Otherwise, complete the path
inside the specified remote. This allows correct completion of all
remote names that are allowed by the config (including - and _).
Actually it matches much more than that, even remote names that are not
allowed by the config, but in such a case there already would be a wrong
identifier in the configuration file.
With this simpler string comparison, we can get rid of the regular
expression, which makes the completion multiple times faster. For a
sample benchmark, try the following:
# Old way
$ time bash -c 'for _ in {1..1000000}; do
[[ remote:path =~ ^[[:alnum:]]*$ ]]; done'
real 0m15,637s
user 0m15,613s
sys 0m0,024s
# New way
$ time bash -c 'for _ in {1..1000000}; do
[[ remote:path != *:* ]]; done'
real 0m1,324s
user 0m1,304s
sys 0m0,020s
Before this change, rclone used the `__custom_func` hook to control
the completions of remote files. However this clashes with other
cobra users, the most notable example being kubectl.
Upgrading cobra to master allows us to use a namespaced function
`__rclone_custom_func` which fixes the problem.
Fixes#1529
Instead of showing all flags/backends all the time, you can type
rclone help flags
rclone help flags <regexp>
rclone help backends
rclone help backend <name>
