feat(add): --channel parameter #4594
Description
Problem description
Problem description
pixi add command add --channel parameters to specifying the channel when adding dependencies.
conda channel
When using pixi to install packages from specialized channels such as bioconda, the channel must first be added to workspace.channels; otherwise, resolution errors will occur.
Empty pixi.toml
[workspace]
authors = ["Yibo Mao <maoyibo@gmail.com>"]
channels = ["conda-forge"]
name = "add-test"
platforms = ["linux-64"]
version = "0.1.0"
[tasks]
[dependencies]
python = ">=3.13.7,<3.14"
pixi add samtools
Error: × failed to solve requirements of environment 'default' for platform 'linux-64'
├─▶ × failed to solve the environment
│
╰─▶ Cannot solve the request because of: No candidates were found for samtools *.
By adding the --channel parameter, the specified channel is automatically added to workspace.channels and the package is constrained to that specific channel.
--channel parameter works as follows:
pixi add --channel bioconda samtools
Updated pixi.toml
[workspace]
authors = ["Yibo Mao <maoyibo@gmail.com>"]
channels = ["conda-forge", "bioconda"]
name = "add-test"
platforms = ["linux-64"]
version = "0.1.0"
[tasks]
[dependencies]
python = ">=3.13.7,<3.14"
samtools = { version = ">=1.22.1,<2", channel = "bioconda" }