"Do you wish to see all X Possibilities?" Bug

[Thy-GoD]

Originally posted as a question but was told to make a bug report instead.

This screenshot sums up the problem:

This prompt will sometimes occur mid-typing and basically force me to backspace and re-type the whole thing.

It will sometimes occur for longer commands as well, though I can't remember a case off memory.

Main way to reproduce is to type in curl - and it should show up.

Environment

% typeset -p1 VENDOR OSTYPE ZSH_PATCHLEVEL _autocomplete__funcfiletrace
typeset VENDOR=debian
typeset OSTYPE=linux-gnu
typeset ZSH_PATCHLEVEL=debian/5.9-4+b4
typeset -a _autocomplete__funcfiletrace=(
  /root/.ZSH_FILES/Git/marlonrichert/zsh-autocomplete/zsh-autocomplete.plugin.zsh:4
  /root/.zshrc:34
  /root/.ZSH_FILES/Git/zsh-snap/functions/.znap.source:37
  /root/.ZSH_FILES/Git/zsh-snap/functions/znap:27
  /root/.zshrc:287
  zsh:0
)
% git -C ~autocomplete log --oneline -n1
6d059a3 (grafted, HEAD -> main, tag: 23.07.13, origin/main, origin/HEAD) Fix bugs in insertion logic

• Operating system: 6.3.0-kali1-amd64
• Terminal emulator: Terminator

Steps to reproduce

% cd $(mktemp -d)
% git clone --depth 1 -- https://github.com/marlonrichert/zsh-autocomplete.git
% > .zshrc <<EOF
setopt interactivecomments transientrprompt
PS1='%# '
PS2=
RPS2='%^'
source $PWD/zsh-autocomplete/zsh-autocomplete.plugin.zsh
EOF
% env -i HOME=$PWD PATH=$PATH TERM=$TERM ${TERMINFO:+TERMINFO=$TERMINFO} zsh -d
% curl -
zsh: do you wish to see all 168 possibilities (86 lines)?

Contents of ~autocomplete-log/2023-8-22.log (click to expand)

zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error
zshexit: write error: Input/output error

This is a repost of an issue thread where I didn't put the format.
I might've missed out something in this template but i tried my best to fill it as much as possible.

[marlonrichert]

Sorry, I'm not able to reproduce that. Can you run the following and share the output?

typeset -p COLUMNS LINES
curl -V
curl --help

[Thy-GoD]

Sorry, I'm not able to reproduce that. Can you run the following and share the output?

typeset -p COLUMNS LINES
curl -V
curl --help

Output of first command:

typeset -i10 COLUMNS=157
typeset -i10 LINES=38

Output of 2nd command:

curl 7.88.1 (x86_64-pc-linux-gnu) libcurl/7.88.1 OpenSSL/3.0.10 zlib/1.2.13 brotli/1.0.9 zstd/1.5.5 libidn2/2.3.4 libpsl/0.21.2 (+libidn2/2.3.3) libssh2/1.11.0 nghttp2/1.55.1 librtmp/2.3 OpenLDAP/2.5.13
Release-Date: 2023-02-20
Protocols: dict file ftp ftps gopher gophers http https imap imaps ldap ldaps mqtt pop3 pop3s rtmp rtsp scp sftp smb smbs smtp smtps telnet tftp
Features: alt-svc AsynchDNS brotli GSS-API HSTS HTTP2 HTTPS-proxy IDN IPv6 Kerberos Largefile libz NTLM NTLM_WB PSL SPNEGO SSL threadsafe TLS-SRP UnixSockets zstd

Output of third command:

Usage: curl [options...] <url>
 -d, --data <data>          HTTP POST data
 -f, --fail                 Fail fast with no output on HTTP errors
 -h, --help <category>      Get help for commands
 -i, --include              Include protocol response headers in the output
 -o, --output <file>        Write to file instead of stdout
 -O, --remote-name          Write output to a file named as the remote file
 -s, --silent               Silent mode
 -T, --upload-file <file>   Transfer local FILE to destination
 -u, --user <user:password> Server user and password
 -A, --user-agent <name>    Send User-Agent <name> to server
 -v, --verbose              Make the operation more talkative
 -V, --version              Show version number and quit

This is not the full help, this menu is stripped into categories.
Use "--help category" to get an overview of all categories.
For all options use the manual or "--help all".

[marlonrichert]

What output do you get when you answer y to the question?

[Thy-GoD]

It sorta just breaks.

[l4kr]

git + space shows it a and if I keep typing it basically misses a character
Lot of other commands too

[Thy-GoD]

git + space shows it a and if I keep typing it basically misses a character Lot of other commands too

Yeah alot of other commands also have the same issue, mainly if the available flags are plenty.
I don't remember every case, but it will make you miss a character.

[marlonrichert]

@Thy-GoD Weird, I have completely different completions for curl:

% curl -V                                                                                                                                 origin<- 643-unit-tests
option
--data         -d    HTTP POST data                                                                                                                            
--fail         -f    Fail fast with no output on HTTP errors                                                                                                   
--help         -h    Get help for commands                                                                                                                     
--include      -i    Include protocol response headers in the output                                                                                           
--output       -o    Write to file instead of stdout                                                                                                           
--remote-name  -O    Write output to a file named as the remote file                                                                                           
--silent       -s    Silent mode                                                                                                                               
--upload-file  -T    Transfer local FILE to destination                                                                                                        
--user         -u    <user-password> Server user and password                                                                                                  
--user-agent   -A    Send User-Agent <name> to server                                                                                                          
--verbose      -v    Make the operation more talkative                                                                                                         
--version      -V    Show version number and quit                                                                                                              

[marlonrichert]

@l4kr What does typeset -p COLUMNS LINES output for you? Also, can you please share the output that you get when you answer y to the question?

[marlonrichert]

@Thy-GoD Ah, now I see: curl supplies its own completion function nowadays, but on macOS, it is not installed by default. When I use curl's own completion function, instead of the default one for curl in zsh, then I can reproduce this.

[Thy-GoD]

@Thy-GoD Ah, now I see: curl supplies its own completion function nowadays, but on macOS, it is not installed by default. When I use curl's own completion function, instead of the default one for curl in zsh, then I can reproduce this.

Interesting, this issue occurs in other commands as well, I'm guessing this is because there's a conflict between the two completion functions?

[l4kr]

typeset -p COLUMNS LINES
typeset -i10 COLUMNS=183
typeset -i10 LINES=43

This is what I typically use when I open the terminal. I resize the terminal all the time tho...

For the git:

Details

 -- main porcelain command --
add                -- add file contents to index
am                 -- apply patches from a mailbox
archive            -- create archive of files from named tree
bisect             -- find, by binary search, change that introduced a bug
branch             -- list, create, or delete branches
bundle             -- move objects and refs by archive
checkout           -- checkout branch or paths to working tree
cherry-pick        -- apply changes introduced by some existing commits
citool             -- graphical alternative to git commit
clean              -- remove untracked files from working tree
clone              -- clone repository into new directory
commit             -- record changes to repository
describe           -- show most recent tag that is reachable from a commit
diff               -- show changes between commits, commit and working tree, etc.
fetch              -- download objects and refs from another repository
format-patch       -- prepare patches for e-mail submission
gc                 -- cleanup unnecessary files and optimize local repository
grep               -- print lines matching a pattern
gui                -- run portable graphical interface to git
init               -- create empty git repository or re-initialize an existing one
log                -- show commit logs
merge              -- join two or more development histories together
mv                 -- move or rename file, directory, or symlink
notes              -- add or inspect object notes
pull               -- fetch from and merge with another repository or local branch
push               -- update remote refs along with associated objects
range-diff         -- compare two commit ranges
rebase             -- forward-port local commits to the updated upstream head
reset              -- reset current HEAD to specified state
restore            -- restore working tree files
revert             -- revert existing commits
rm                 -- remove files from the working tree and from the index
shortlog           -- summarize git log output
show               -- show various types of objects
stash              -- stash away changes to dirty working directory
status             -- show working-tree status
submodule          -- initialize, update, or inspect submodules
subtree            -- split repository into subtrees and merge them
switch             -- switch branches
tag                -- create, list, delete or verify tag object signed with GPG
worktree           -- manage multiple working dirs attached to the same repository
 -- ancillary manipulator command --
config             -- get and set repository or global options
fast-export        -- data exporter
fast-import        -- import information into git directly
filter-branch      -- rewrite branches
mergetool          -- run merge conflict resolution tools to resolve merge conflicts
pack-refs          -- pack heads and tags for efficient repository access
prune              -- prune all unreachable objects from the object database
reflog             -- manage reflog information
remote             -- manage set of tracked repositories
repack             -- pack unpacked objects in a repository
replace            -- create, list, delete refs to replace objects
 -- ancillary interrogator command --
blame              -- show what revision and author last modified each line of a file
count-objects      -- count unpacked objects and display their disk consumption
difftool           -- show changes using common diff tools
fsck               -- verify connectivity and validity of objects in database
help               -- display help information about git
instaweb           -- instantly browse your working repository in gitweb
interpret-trailers -- add or parse structured information in commit messages
merge-tree         -- show three-way merge without touching index
rerere             -- reuse recorded resolution of conflicted merges
show-branch        -- show branches and their commits
verify-commit      -- check GPG signature of commits
verify-tag         -- check GPG signature of tags
version            -- show git version
whatchanged        -- show commit-logs and differences they introduce
 -- interaction command --
archimport         -- import an Arch repository into git
cvsexportcommit    -- export a single commit to a CVS checkout
cvsimport          -- import a CVS "repository" into a git repository
cvsserver          -- run a CVS server emulator for git
imap-send          -- send a collection of patches to an IMAP folder
quiltimport        -- apply a quilt patchset
request-pull       -- generate summary of pending changes
send-email         -- send collection of patches as emails
svn                -- bidirectional operation between a Subversion repository and git
 -- plumbing manipulator command --
apply              -- apply patch to files and/or to index
checkout-index     -- copy files from index to working directory
commit-graph       -- write and verify Git commit-graph files
commit-tree        -- create new commit object
hash-object        -- compute object ID and optionally create a blob from a file
index-pack         -- build pack index file for an existing packed archive
merge-file         -- run a three-way file merge
merge-index        -- run merge for files needing merging
mktag              -- create tag object
mktree             -- build tree-object from git ls-tree formatted text
multi-pack-index   -- write and verify multi-pack-indexes
pack-objects       -- create packed archive of objects
prune-packed       -- remove extra objects that are already in pack files
read-tree          -- read tree information into directory index
symbolic-ref       -- read and modify symbolic references
unpack-objects     -- unpack objects from packed archive
update-index       -- register file contents in the working directory to the index
update-ref         -- update object name stored in a reference safely
write-tree         -- create tree from the current index
 -- plumbing interrogator command --
cat-file           -- provide content or type information for repository objects
cherry             -- find commits not merged upstream
diff-files         -- compare files in working tree and index
diff-index         -- compare content and mode of blobs between index and repository
diff-tree          -- compare content and mode of blobs found via two tree objects
for-each-ref       -- output information on each ref
get-tar-commit-id  -- extract commit ID from an archive created using git archive
ls-files           -- information about files in index/working directory
ls-remote          -- show references in a remote repository
ls-tree            -- list contents of a tree object
merge-base         -- find as good a common ancestor as possible for a merge
name-rev           -- find symbolic names for given revisions
pack-redundant     -- find redundant pack files
rev-list           -- list commit object in reverse chronological order
rev-parse          -- pick out and massage parameters for other git commands
show-index         -- show packed archive index
show-ref           -- list references in a local repository
unpack-file        -- create temporary file with blob's contents
var                -- show git logical variable
verify-pack        -- validate packed git archive files
 -- plumbing sync command --
daemon             -- run a really simple server for git repositories
fetch-pack         -- receive missing objects from another repository
http-backend       -- run a server side implementation of Git over HTTP
send-pack          -- push objects over git protocol to another repository
update-server-info -- update auxiliary information file to help dumb servers
 -- plumbing sync helper command --
http-fetch         -- download from remote git repository via HTTP
http-push          -- push objects over HTTP/DAV to another repository
parse-remote       -- routines to help parsing remote repository access parameters
receive-pack       -- receive what is pushed into repository
shell              -- restricted login shell for GIT-only SSH access
upload-archive     -- send archive back to git-archive
upload-pack        -- send objects packed back to git fetch-pack
 -- plumbing internal helper command --
check-attr         -- display gitattributes information
check-ignore       -- debug gitignore/exclude files
check-mailmap      -- show canonical names and email addresses of contacts
check-ref-format   -- ensure that a reference name is well formed
column             -- display data in columns
fmt-merge-msg      -- produce merge commit message
mailinfo           -- extract patch and authorship from a single email message
mailsplit          -- split mbox file into a list of files
merge-one-file     -- standard helper-program to use with git merge-index
patch-id           -- compute unique ID for a patch
stripspace         -- filter out empty lines

On MacOS it doesn't show any prompt at all until I type in something that can be shown (git p...) which would be the preferred behavior. Even better if zsh-autocomplete could show something like first x matches.

[marlonrichert]

@Thy-GoD No, that's not the reason. The reason is that Zsh's own completion function for _curl simply does not produce as many completions as the one that ships with curl itself.

[Thy-GoD]

Ah got it, I've tested on my end and the fix works, curl - no longer has the prompt.