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https://github.com/fish-shell/fish-shell
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143757e8c6
Prior to this change, if you tab-completed a token with a wildcard (glob), we
would invoke ordinary completions. Instead, expand the wildcard, replacing
the wildcard with the result of expansions. If the wildcard fails to expand,
flash the command line to signal an error and do not modify it.
Example:
> touch file(seq 4)
> echo file*<tab>
becomes:
> echo file1 file2 file3 file4
whereas before the tab would have just added a space.
Some things to note:
1. If the expansion would produce more than 256 items, we flash the command
line and do nothing, since it would make the commandline overfull.
2. The wildcard token can be brought back through Undo (ctrl-Z).
3. This only kicks in if the wildcard is in the "path component
containing the cursor." If the wildcard is in a previous component,
we continue using completions as normal.
Fixes #954.
104 lines
3 KiB
Python
104 lines
3 KiB
Python
#!/usr/bin/env python3
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import signal
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from pexpect_helper import SpawnedProc
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sp = SpawnedProc()
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send, sendline, sleep, expect_prompt, expect_re, expect_str = (
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sp.send,
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sp.sendline,
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sp.sleep,
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sp.expect_prompt,
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sp.expect_re,
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sp.expect_str,
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)
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expect_prompt()
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# Exclam to clear the commandline.
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sendline(r"bind ! 'commandline \'\''")
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expect_prompt()
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# A do-nothing function to ensure we don't inherit weird completions.
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sendline(r"function foo; end")
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expect_prompt()
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sendline(r"cd (mktemp -d)")
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expect_prompt()
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# Helper function that sets the commandline to a glob,
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# optionally moves the cursor back, tab completes, and then clears the commandline.
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def tab_expand_glob(input, expected, move_cursor_back=0):
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send(input)
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if move_cursor_back > 0:
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send("\x1b[D" * move_cursor_back)
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expect_str(input)
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sleep(0.1)
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send("\t")
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expect_str(expected)
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send(r"!") # clears the commandline
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# Don't report tab_expand_glob as the callsite since it is a helper.
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tab_expand_glob.callsite_skip = True
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sendline(r"touch aaa1 aaa2 aaa3")
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expect_prompt()
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tab_expand_glob(r"cat *", r"cat aaa1 aaa2 aaa3")
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tab_expand_glob(r"cat *2", r"cat aaa2")
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# Globs that fail to expand are left alone.
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tab_expand_glob(r"cat qqq*", r"cat qqq*")
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# Special characters in expanded globs are properly escaped.
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sendline(r"touch bb\*bbQ cc\;ccQ")
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expect_prompt()
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tab_expand_glob(r"cat *Q", r"cat bb\*bbQ cc\;ccQ")
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# Cases from #8593.
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sendline(r"rm -Rf *; touch README.rst")
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expect_prompt()
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tab_expand_glob(r"cat R*", r"cat README.rst")
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# Glob fails, so offer completion.
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tab_expand_glob(r"cat *.r", r"cat *.rst")
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tab_expand_glob(r"cat *.rst", r"cat README.rst")
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sendline(r"mkdir benchmarks && mkdir benchmarks/somedir && touch benchmarks/somefile")
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expect_prompt()
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tab_expand_glob(r"echo benchmarks/*", r"echo benchmarks/somedir benchmarks/somefile")
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# Trailing slash suppresses files.
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# Note we move the cursor backwards one, to right after the glob.
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tab_expand_glob(r"echo benchmarks/*/", r"echo benchmarks/somedir/", 1)
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# Glob fails so it tries completions which also fails.
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# This happens whether the cursor is at the end, or just after the glob.
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tab_expand_glob(r"echo ben*/nomatch", r"echo ben*/nomatch")
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tab_expand_glob(r"echo ben*/nomatch", r"echo ben*/nomatch", len("/nomatch"))
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# Glob fails so it tries completions which succeeds.
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tab_expand_glob(r"echo ben*/somed", r"echo ben*/somedir")
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tab_expand_glob(r"echo ben*/somed", r"echo ben*/somedir", len("/somed"))
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# No glob in "current path component," offer completions.
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tab_expand_glob(r"echo {benchmarks/*/,benchm}a", r"echo {benchmarks/*/,benchm}arks/")
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# Test undo and redo.
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# "<" and ">" to undo and redo respectively.
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sendline(r"bind \< undo; bind \> redo")
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expect_prompt()
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send(r"echo benchmarks/*")
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sleep(0.1)
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send("\t")
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expect_str(r"echo benchmarks/somedir benchmarks/somefile")
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# Undo un-expands the command.
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send(r"<")
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expect_str(r"echo benchmarks/*")
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# Redo re-expands it.
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send(r">")
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expect_str(r"echo benchmarks/somedir benchmarks/somefile")
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