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abigen: Support passing extra flags to solc

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My use case is that I want to pass `--allow-paths` to `solc`,
as without it I cannot compile my contracts.

Currently, it is impossible to invoke `abigen` with custom
`solc` flags. Rather than proxying every single `solc` flag,
add a `-flags` flag which allows space separated overrides.

Usage:
```
abigen -sol a.sol -pkg foo -out bar.go -flags "--allow-paths foo/bar"
```
This commit is contained in:
Kegan Dougal 2018-03-06 11:49:54 +00:00
parent 746392cfd2
commit 03e5787457
2 changed files with 12 additions and 6 deletions
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13
cmd/abigen/main.go
View file

@ -33,9 +33,10 @@ var (
binFlag = flag.String("bin", "", "Path to the Ethereum contract bytecode (generate deploy method)")
typFlag = flag.String("type", "", "Struct name for the binding (default = package name)")
solFlag = flag.String("sol", "", "Path to the Ethereum contract Solidity source to build and bind")
solcFlag = flag.String("solc", "solc", "Solidity compiler to use if source builds are requested")
excFlag = flag.String("exc", "", "Comma separated types to exclude from binding")
solFlag = flag.String("sol", "", "Path to the Ethereum contract Solidity source to build and bind")
solcFlag = flag.String("solc", "solc", "Solidity compiler to use if source builds are requested")
excFlag = flag.String("exc", "", "Comma separated types to exclude from binding")
solcArgsFlag = flag.String("flags", "", "Space separated extra flags to pass to solc")
pkgFlag = flag.String("pkg", "", "Package name to generate the binding into")
outFlag = flag.String("out", "", "Output file for the generated binding (default = stdout)")
@ -81,7 +82,11 @@ func main() {
for _, kind := range strings.Split(*excFlag, ",") {
exclude[strings.ToLower(kind)] = true
}
contracts, err := compiler.CompileSolidity(*solcFlag, *solFlag)
var solcArgs []string
if *solcArgsFlag != "" {
solcArgs = strings.Split(*solcArgsFlag, " ")
}
contracts, err := compiler.CompileSolidity(*solcFlag, solcArgs, *solFlag)
if err != nil {
fmt.Printf("Failed to build Solidity contract: %v\n", err)
os.Exit(-1)

5
common/compiler/solidity.go
View file

@ -119,7 +119,7 @@ func CompileSolidityString(solc, source string) (map[string]*Contract, error) {
}
// CompileSolidity compiles all given Solidity source files.
func CompileSolidity(solc string, sourcefiles ...string) (map[string]*Contract, error) {
func CompileSolidity(solc string, extraArgs []string, sourcefiles ...string) (map[string]*Contract, error) {
if len(sourcefiles) == 0 {
return nil, errors.New("solc: no source files")
}
@ -131,7 +131,8 @@ func CompileSolidity(solc string, sourcefiles ...string) (map[string]*Contract,
if err != nil {
return nil, err
}
args := append(s.makeArgs(), "--")
args := append(s.makeArgs(), extraArgs...)
args = append(args, "--")
cmd := exec.Command(s.Path, append(args, sourcefiles...)...)
return s.run(cmd, source)
}