[ISSUE] ncurses-base as dependency to nano and bash/ncurses-libs

[ISSUE] ncurses-base as dependency to nano and bash/ncurses-libs

[voidlinux-github]

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New issue by am11 on void-packages repository

https://github.com/void-linux/void-packages/issues/14488

Description:
<!-- Don't request update of package. We have a script for that. https://alpha.de.repo.voidlinux.org/void-updates/void-updates.txt . However, a quality pull request may help. -->
### System

* xuname:  

`Void 4.9.184-linuxkit x86_64-musl GenuineIntel uptodate rF`

* package:  

`bash-5.0.009_1`
`nano-4.4_1`

### Expected behavior

With `base-minimal` (voidlinux-musl docker e.g.), when we install bash or nano, these packages should install ncurses-base package for the software to function.

### Actual behavior

After some googling and figuring out, it appears that the `ncurses-base` (and more granually, what Alpine Linux ports calls `ncurses-terminfo-base`) package is the one which is missing.

### Steps to reproduce the behavior

nano:

```sh
docker run -it voidlinux/voidlinux-musl

# inside the container
xbps-install -S
xbps-install -y nano

nano
# terminates with:
Error opening terminal: xterm.

# to fix the error
xbps-install ncurses-base

nano # it works!
```

bash:

```sh
docker run -it voidlinux/voidlinux-musl

# entered the container
xbps-install -S
xbps-install -y bash

bash
# entered bash

# type something and press ENTER
ls
# type something again and press ENTER
cd
# now press UP and UP, it looks like:
cdls
#instead of
ls

# similarly, back arrow key to navigate cursor does not move the caret.
# also, BACKSPACE renders spaces instead of erasing the character at caret.
# etc.

# to fix these issues
xbps-install ncurses-base

# exit and reenter bash to get the keybindings behave correctly
```

Re: ncurses-base as dependency to nano and bash/ncurses-libs

[voidlinux-github]

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New comment by zdtcd on void-packages repository

https://github.com/void-linux/void-packages/issues/14488#issuecomment-538651473

Comment:
I don't think bash should depend on ncurses, since bash can be used for non-interactive session, which is the main use case of docker image.

Re: ncurses-base as dependency to nano and bash/ncurses-libs

[voidlinux-github]

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New comment by xtraeme on void-packages repository

https://github.com/void-linux/void-packages/issues/14488#issuecomment-538651984

Comment:
Well, I agree. A build option possibly maybe

El sáb., 5 oct. 2019 15:49, Danh Doan <notifications@github.com> escribió:

> I don't think bash should depend on ncurses, since bash can be used for
> non-interactive session, which is the main use case of docker image.
>
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Re: ncurses-base as dependency to nano and bash/ncurses-libs

[ericonr]

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New comment by ericonr on void-packages repository

https://github.com/void-linux/void-packages/issues/14488#issuecomment-770145459

Comment:
I'm not sure this can be solved at all. A minimal container doesn't want to have ncurses-base
/

Re: ncurses-base as dependency to nano and bash/ncurses-libs

[sgn]

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New comment by sgn on void-packages repository

https://github.com/void-linux/void-packages/issues/14488#issuecomment-770157034

Comment:
On 2021-01-29 19:03:35-0800, Érico Nogueira Rolim <notifications@github.com> wrote:
> I'm not sure this can be solved at all. A minimal container doesn't want to have ncurses-base

My opinion is this is not a bug, working as intended.

Re: ncurses-base as dependency to nano and bash/ncurses-libs

[ericonr]

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New comment by ericonr on void-packages repository

https://github.com/void-linux/void-packages/issues/14488#issuecomment-770222512

Comment:
This has also been expressed on IRC.

Re: [ISSUE] [CLOSED] ncurses-base as dependency to nano and bash/ncurses-libs

[ericonr]

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Closed issue by am11 on void-packages repository

https://github.com/void-linux/void-packages/issues/14488

Description:
<!-- Don't request update of package. We have a script for that. https://alpha.de.repo.voidlinux.org/void-updates/void-updates.txt . However, a quality pull request may help. -->
### System

* xuname:  

`Void 4.9.184-linuxkit x86_64-musl GenuineIntel uptodate rF`

* package:  

`bash-5.0.009_1`
`nano-4.4_1`

### Expected behavior

With `base-minimal` (voidlinux-musl docker e.g.), when we install bash or nano, these packages should install ncurses-base package for the software to function.

### Actual behavior

After some googling and figuring out, it appears that the `ncurses-base` (and more granually, what Alpine Linux ports calls `ncurses-terminfo-base`) package is the one which is missing.

### Steps to reproduce the behavior

nano:

```sh
docker run -it voidlinux/voidlinux-musl dash

# inside the container
xbps-install -S
xbps-install -y nano

nano
# terminates with:
Error opening terminal: xterm.

# to fix the error
xbps-install ncurses-base

nano # it works!
```

bash:

```sh
docker run -it voidlinux/voidlinux-musl dash

# entered the container
xbps-install -S
xbps-install -y bash

bash
# entered bash

# type something and press ENTER
ls
# type something again and press ENTER
cd
# now press UP and UP, it looks like:
cdls
#instead of
ls

# similarly, back arrow key to navigate cursor does not move the caret.
# also, BACKSPACE renders spaces instead of erasing the character at caret.
# etc.

# to fix these issues
xbps-install ncurses-base

# exit and reenter bash to get the keybindings behave correctly
```

Re: ncurses-base as dependency to nano and bash/ncurses-libs

[am11]

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New comment by am11 on void-packages repository

https://github.com/void-linux/void-packages/issues/14488#issuecomment-770232793

Comment:
Well, I am not following IRC, neither have I asked to modify minimal container. I thought this is just a case of `nano` package missing `checkdepends="ncurses-base"` line to avoid "Error opening terminal: xterm." as described in the top post.

Re: ncurses-base as dependency to nano and bash/ncurses-libs

[Duncaen]

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New comment by Duncaen on void-packages repository

https://github.com/void-linux/void-packages/issues/14488#issuecomment-770233386

Comment:
But where would this end, would we add `ncurses-base` to everything that depends on ncurses i.e. util-linux because of cfdisk?

The point is that `ncurses-base` is part of the `base-system` to avoid that, `base-minmal` doesn't have it to avoid blowing up the size for containers that are not going to be used interactively.

Re: ncurses-base as dependency to nano and bash/ncurses-libs

[Duncaen]

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New comment by Duncaen on void-packages repository

https://github.com/void-linux/void-packages/issues/14488#issuecomment-770233386

Comment:
But where would this end, would we add `ncurses-base` to everything that depends on ncurses i.e. util-linux because of cfdisk (which would effectively pull `ncurses` base into `base-minimal`)?

The point is that `ncurses-base` is part of the `base-system` to avoid that, `base-minmal` doesn't have it to avoid blowing up the size for containers that are not going to be used interactively.

Re: ncurses-base as dependency to nano and bash/ncurses-libs

[Duncaen]

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New comment by Duncaen on void-packages repository

https://github.com/void-linux/void-packages/issues/14488#issuecomment-770233386

Comment:
But where would this end, would we add `ncurses-base` to everything that depends on ncurses i.e. util-linux because of cfdisk (which would effectively pull `ncurses-base` into `base-minimal`)?

The point is that `ncurses-base` is part of the `base-system` to avoid that, `base-minmal` doesn't have it to avoid blowing up the size for containers that are not going to be used interactively.

Re: ncurses-base as dependency to nano and bash/ncurses-libs

[am11]

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New comment by am11 on void-packages repository

https://github.com/void-linux/void-packages/issues/14488#issuecomment-770241203

Comment:
Conversely, if the rationale behind existing packages with explicit dependency on `ncurses-base` (i.e. [`newsboat`](https://github.com/void-linux/void-packages/blob/2635aeec82926d6228fef8e8622cf2d583a1b400/srcpkgs/newsboat/template#L12) and [`pick`](https://github.com/void-linux/void-packages/blob/df7ebc36a9ffb208a0d60da58a98a2c4936b1735/srcpkgs/pick/template#L9)) is that they do not function without this dependency, then I think `nano` also qualifies.

Re: ncurses-base as dependency to nano and bash/ncurses-libs

[Duncaen]

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New comment by Duncaen on void-packages repository

https://github.com/void-linux/void-packages/issues/14488#issuecomment-770242023

Comment:
You are right, the dependency should be removed from those packages. They don't depend on `ncurses-base` they depend on a definition for the used terminal which can not be expressed as dependency.

Re: ncurses-base as dependency to nano and bash/ncurses-libs

[Duncaen]

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New comment by Duncaen on void-packages repository

https://github.com/void-linux/void-packages/issues/14488#issuecomment-770242023

Comment:
You are right, the dependency should be removed from those packages. They don't depend on `ncurses-base` they depend on a terminfo definition for the used terminal which can not be expressed as dependency.