feat(source-files): add custom origin type for mock-based source generation

[Tonisal-byte]

Introduces a new origin.type = "custom" for component source-files entries. Instead of downloading a pre-built artifact, azldev runs a user-supplied shell script inside a fresh mock chroot and packages the output directory as a deterministic archive.

Example:

[[components.yara.source-files]]
filename         = "yara-4.5.4.tar.gz"
origin           = { type = "custom" }
script           = "modify_source.sh"
mock-packages    = ["curl", "tar", "gzip", "coreutils"]
hash-type        = "SHA512"
hash             = "somehash"

Script contract: the script must write all desired archive contents to /azldev-gen/output/. azldev mounts the script read-only at /azldev-gen/script/ and the output directory read-write at /azldev-gen/output/, then packages the output into the declared filename using CreateDeterministicArchive.

Example:

echo "[N/N] Repacking deterministically as ${MODIFIED_NAME}"
# azldev packages /azldev-gen/output/ into a deterministic archive.
# Place the stripped source tree there so the archive contains the same
# yara-4.5.4/ top-level directory the upstream tarball had.
mv "${EXTRACTED_DIRNAME}" "/azldev-gen/output/${EXTRACTED_DIRNAME}"

[Copilot]

Pull request overview

Adds a new origin.type = "custom" mode for source-files entries, enabling azldev to generate a source artifact by running a user-provided script inside a fresh mock chroot and then packaging /azldev-gen/output as a deterministic archive.

Changes:

• Extend project config/schema to support origin.type = "custom" plus script and mock-packages, with validation.
• Add a new file-source provider that runs the script in mock and archives its output deterministically.
• Extend the mock runner API (CmdInChroot) to optionally pipe output directly to the user and update call sites.

Reviewed changes

Copilot reviewed 15 out of 15 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
schemas/azldev.schema.json	Adds custom origin enum + script/mock-packages fields to the JSON schema.
scenario/snapshots/TestSnapshotsContainer_config_generate-schema_stdout_1.snap	Updates schema snapshot output for the new fields.
scenario/snapshots/TestSnapshots_config_generate-schema_stdout_1.snap	Updates schema snapshot output for the new fields.
internal/rpm/mock/mock.go	Adds pipeOutput support to Runner.CmdInChroot for real-time output passthrough.
internal/rpm/mock/mock_test.go	Updates tests for the new CmdInChroot signature.
internal/providers/sourceproviders/sourcemanager.go	Introduces FileSourceProvider dispatch, ErrNotFound, and custom-origin handling/fallback behavior.
internal/providers/sourceproviders/customsourceprovider.go	Implements custom-origin source generation via mock + deterministic archiving.
internal/providers/sourceproviders/customsourceprovider_internal_test.go	Adds unit tests for custom provider helpers and validation behavior.
internal/projectconfig/configfile.go	Adds validation rules for custom origin (script, mock-packages, and rejecting uri).
internal/projectconfig/configfile_test.go	Adds validation test coverage for the new custom-origin rules.
internal/projectconfig/component.go	Adds OriginTypeCustom, script, mock-packages, and HashInclude behavior for fingerprinting.
internal/buildenv/mockroot.go	Updates CmdInChroot call to pass pipeOutput=false.
internal/app/azldev/core/sources/mockprocessor.go	Updates CmdInChroot call to pass pipeOutput=false.
internal/app/azldev/cmds/component/preparesources.go	Refactors preparer option assembly; notes custom origin is auto-enabled when mock-config exists.
internal/app/azldev/cmds/advanced/mock.go	Updates CmdInChroot call to pass pipeOutput=false.

[Copilot]

Pull request overview

Copilot reviewed 16 out of 16 changed files in this pull request and generated 3 comments.