`update` hands off to install.sh (install.ps1 on Windows) and prints the command
to run. It built that command from cbm_detect_self_path - the BINARY's directory
- and treated "I resolved my own location" as "the installer is beside me".
Those are different questions. install.sh is placed beside the binary by
install.sh itself, but a binary that was moved, packaged by a distro, or built
from source has no installer next to it. We printed the path anyway:
bash "/home/<user>/.local/bin/install.sh"
/usr/bin/bash: /home/<user>/.local/bin/install.sh: No such file or directory
Reported on discussion #1560 (#1632) by a user who was already three releases
deep in install trouble and had just been told, by us, to run a file that does
not exist.
`update` exists to tell someone how to proceed. Ending the interaction on a
command that cannot run is the one outcome it must not produce - and the
fallback text was already there and already correct, naming install.sh as
shipping in the release archive without asserting a path.
The probe goes through cbm_path_info_utf8 so a non-ASCII install directory
resolves on Windows, and rejects a DIRECTORY of that name, because `bash <dir>`
is not a command either. A symlink still counts: it is reported rather than
followed, and the shell runs it perfectly well.
The Windows branch gets the same treatment; it had the identical assumption
about install.ps1.
Reproduce-first and revert-checked: with the probe forced to return true - the
old behaviour - the new test fails with "a directory with no installer must not
be named as one", and passes once it is restored. cli: 276 passed.
Signed-off-by: Martin Vogel <martin.vogel.tech@gmail.com>
Martin Vogel
d58962c010