Change handling of ExtraPath

[winksaville]

To make the handling of ExtraPath portable append it to the front of the
PATH when it exists, instead of always changing the script.

[winksaville]

@cplee I slept on your suggestion and came up with a different solution of adding ExtraPath to the PATH environment variable. Note: this is my first experience using Go so please don't laugh, but let me know your thoughts :)

When I run make build I get an error as I don't have a token although it seems to "work":

$ make build
cat: /home/wink/.config/github/token: No such file or directory
go build -ldflags "-X main.version=0.2.16-5-g70af6c1" -o dist/local/act main.go

But what I've been doing is just go build and that is working for my simple example I've created.

Finally, I tried to run make test and I get an error, not sure if that because of my change or the lack of a token or ...

$ make test
cat: /home/wink/.config/github/token: No such file or directory
go test ./...
?   	github.com/nektos/act	[no test files]
?   	github.com/nektos/act/cmd	[no test files]
ok  	github.com/nektos/act/pkg/common	(cached)
ok  	github.com/nektos/act/pkg/container	(cached)
ok  	github.com/nektos/act/pkg/model	(cached)
ok  	github.com/nektos/act/pkg/runner	22.111s
go run main.go
[push/Test    ] 🚀  Start image=node:12.6-buster-slim
[push/Lint    ] 🚀  Start image=node:12.6-buster-slim
[push/Lint    ]   🐳  docker run image=node:12.6-buster-slim entrypoint=["/usr/bin/tail" "-f" "/dev/null"] cmd=[]
[push/Test    ]   🐳  docker run image=node:12.6-buster-slim entrypoint=["/usr/bin/tail" "-f" "/dev/null"] cmd=[]
[push/Test    ]   🐳  docker cp src=/home/wink/prgs/nektos/forks/act/. dst=/github/workspace
[push/Lint    ]   🐳  docker cp src=/home/wink/prgs/nektos/forks/act/. dst=/github/workspace
[push/Lint    ] ⭐  Run actions/checkout@v2
[push/Lint    ]   ✅  Success - actions/checkout@v2
[push/Lint    ] ⭐  Run docker:https://golangci/golangci-lint:v1.23.8
[push/Test    ] ⭐  Run actions/checkout@v2
[push/Test    ]   ✅  Success - actions/checkout@v2
[push/Test    ] ⭐  Run actions/setup-go@v1
[push/Test    ]   ☁  git clone 'https://github.com/actions/setup-go' # ref=v1
[push/Test    ]   🐳  docker cp src=/home/wink/.cache/act/actions-setup-go@v1 dst=/actions/
[push/Test    ]   💬  ::debug::evaluating 11 versions
[push/Test    ]   💬  ::debug::matched: 1.14.10
[push/Test    ]   💬  ::debug::isExplicit: 1.14.10
[push/Test    ]   💬  ::debug::explicit? true
[push/Test    ]   💬  ::debug::checking cache: /opt/hostedtoolcache/go/1.14.10/x64
[push/Test    ]   💬  ::debug::not found
[push/Test    ]   💬  ::debug::Downloading Go from: https://storage.googleapis.com/golang/go1.14.10.linux-amd64.tar.gz
[push/Test    ]   💬  ::debug::Downloading https://storage.googleapis.com/golang/go1.14.10.linux-amd64.tar.gz
[push/Test    ]   💬  ::debug::Downloading /tmp/50b83d4d-7ccf-4163-817c-dd5e5c01db54
[push/Test    ]   💬  ::debug::download complete
| [command]/bin/tar xzC /tmp/40af3258-b2c0-43da-9c10-4953ef836cc3 -f /tmp/50b83d4d-7ccf-4163-817c-dd5e5c01db54
[push/Test    ]   💬  ::debug::Caching tool go 1.14.10 x64
[push/Test    ]   💬  ::debug::source dir: /tmp/40af3258-b2c0-43da-9c10-4953ef836cc3/go
[push/Test    ]   💬  ::debug::destination /opt/hostedtoolcache/go/1.14.10/x64
[push/Test    ]   💬  ::debug::finished caching tool
[push/Test    ]   💬  ::debug::Go tool is cached under /opt/hostedtoolcache/go/1.14.10/x64
[push/Test    ]   ⚙  ::set-env:: GOROOT=/opt/hostedtoolcache/go/1.14.10/x64
[push/Test    ]   ⚙  ::add-path:: /opt/hostedtoolcache/go/1.14.10/x64/bin
[push/Test    ]   ❓  ##[add-matcher]/actions/actions-setup-go@v1/.github/go.json
[push/Test    ]   ✅  Success - actions/setup-go@v1
[push/Test    ] ⭐  Run go test -cover ./...
| /github/workflow/2: line 1: go: command not found
[push/Test    ]   ❌  Failure - go test -cover ./...
Error: exit with `FAILURE`: 127
exit status 1
make: *** [Makefile:23: test] Error 1

[cplee]

lgtm

[winksaville]

Thanks, what do I need to do so make test works for me locally?