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Code Issues Releases Activity

allowing docker to use cached base image in build

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This commit is contained in:
Jeff Downie 2017-02-17 16:18:43 +00:00
parent 0d98008242
commit 5d96ed01d2
3 changed files with 15 additions and 1 deletions
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3
.gitignore vendored
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@ -26,3 +26,6 @@ _testmain.go
coverage.out coverage.out
drone-docker drone-docker
# IDE/Editor related files
**.swp

6
main.go
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@ -118,6 +118,11 @@ func main() {
Usage: "squash the layers at build time", Usage: "squash the layers at build time",
EnvVar: "PLUGIN_SQUASH", EnvVar: "PLUGIN_SQUASH",
}, },
cli.BoolTFlag{
Name: "cache",
Usage: "don't attempt to re-build layers of the image that already exist",
EnvVar: "PLUGIN_USE_CACHE",
},
cli.BoolFlag{ cli.BoolFlag{
Name: "compress", Name: "compress",
Usage: "compress the build context using gzip", Usage: "compress the build context using gzip",
@ -172,6 +177,7 @@ func run(c *cli.Context) error {
Tags: c.StringSlice("tags"), Tags: c.StringSlice("tags"),
Args: c.StringSlice("args"), Args: c.StringSlice("args"),
Squash: c.Bool("squash"), Squash: c.Bool("squash"),
Cache: c.Bool("cache"),
Compress: c.Bool("compress"), Compress: c.Bool("compress"),
Repo: c.String("repo"), Repo: c.String("repo"),
}, },

7
plugin.go
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@ -47,6 +47,7 @@ type (
Tags []string // Docker build tags Tags []string // Docker build tags
Args []string // Docker build args Args []string // Docker build args
Squash bool // Docker build squash Squash bool // Docker build squash
Cache bool // Docker build without pulling
Compress bool // Docker build compress Compress bool // Docker build compress
Repo string // Docker build repository Repo string // Docker build repository
} }
@ -187,7 +188,6 @@ func commandInfo() *exec.Cmd {
func commandBuild(build Build) *exec.Cmd { func commandBuild(build Build) *exec.Cmd {
args := []string { args := []string {
"build", "build",
"--pull=true",
"--rm=true", "--rm=true",
"-f", build.Dockerfile, "-f", build.Dockerfile,
"-t", build.Name, "-t", build.Name,
@ -200,6 +200,11 @@ func commandBuild(build Build) *exec.Cmd {
if build.Compress { if build.Compress {
args = append(args, "--compress") args = append(args, "--compress")
} }
if build.Cache {
args = append(args, "--pull=false")
} else {
args = append(args, "--pull=true")
}
for _, arg := range build.Args { for _, arg := range build.Args {
args = append(args, "--build-arg", arg) args = append(args, "--build-arg", arg)
} }