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dagger/stdlib/go/go.cue

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CUE
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// Go build operations
package go
import (
"alpha.dagger.io/dagger"
"alpha.dagger.io/dagger/op"
"alpha.dagger.io/docker"
"alpha.dagger.io/os"
)
// A standalone go environment
#Container: {
// Go version to use
version: *"1.16" | string @dagger(input)
// Source code
source: dagger.#Artifact @dagger(input)
os.#Container & {
env: CGO_ENABLED: "0"
image: docker.#Pull & {
from: "docker.io/golang:\(version)-alpine"
}
// Setup source dir
let srcPath = "/src"
mount: "\(srcPath)": from: source
dir: srcPath
// Setup go cache
let cachePath = "/root/.cache/gocache"
cache: "\(cachePath)": true
env: GOMODCACHE: cachePath
// Add go to search path (FIXME: should be inherited from image metadata)
shell: search: "/usr/local/go/bin": true
}
}
// Re-usable component for the Go compiler
#Go: {
// Go version to use
version: *"1.16" | string @dagger(input)
// Arguments to the Go binary
args: [...string] @dagger(input)
// Source Directory to build
source: dagger.#Artifact @dagger(input)
// Environment variables
env: {
[string]: string @dagger(input)
}
#up: [
op.#FetchContainer & {
ref: "docker.io/golang:\(version)-alpine"
},
op.#Exec & {
"args": ["go"] + args
"env": env
"env": CGO_ENABLED: "0"
"env": GOMODCACHE: "/root/.cache/gocache"
dir: "/src"
mount: "/src": from: source
mount: "/root/.cache": "cache"
},
]
}
// Go application builder
#Build: {
// Go version to use
version: *#Go.version | string @dagger(input)
// Source Directory to build
source: dagger.#Artifact @dagger(input)
// Packages to build
packages: *"." | string @dagger(input)
// Target architecture
arch: *"amd64" | string @dagger(input)
// Target OS
os: *"linux" | string @dagger(input)
// Build tags to use for building
tags: *"" | string @dagger(input)
// LDFLAGS to use for linking
ldflags: *"" | string @dagger(input)
// Specify the targeted binary name
output: string @dagger(output)
// Environment variables
env: {
[string]: string @dagger(input)
}
#up: [
op.#Copy & {
from: #Go & {
"version": version
"source": source
"env": env
args: ["build", "-v", "-tags", tags, "-ldflags", ldflags, "-o", output, packages]
}
src: output
dest: output
},
]
}
#Test: {
// Go version to use
version: *#Go.version | string @dagger(input)
// Source Directory to build
source: dagger.#Artifact @dagger(input)
// Packages to test
packages: *"." | string @dagger(input)
#Go & {
"version": version
"source": source
args: ["test", "-v", packages]
}
}