all: use golang.org/x/mod

Use the semver and module packages from golang.org/x/mod.  Remove them
from internal/thirdparty.

We also rename Encode{Version,Path} to Escape{Version,Path} because
golang.org/x/module does that.

Fixes b/133841935.

Change-Id: I0e52c6dd7109fbd488a030c750cdc06736356868
Reviewed-on: https://team-review.git.corp.google.com/c/golang/discovery/+/619244
CI-Result: Cloud Build <devtools-proctor-result-processor@system.gserviceaccount.com>
Reviewed-by: Julie Qiu <julieqiu@google.com>
22 files changed
tree: 1684e3d8300852236bc2a3903f40dbe979fd75c8
  1. cmd/
  2. content/
  3. internal/
  4. migrations/
  5. .gitignore
  6. .prettierrc.yaml
  7. all.bash
  8. CONTRIBUTING.md
  9. go.mod
  10. go.sum
  11. LICENSE
  12. PATENTS
  13. README.md
README.md

Go Module Discovery Site

Getting Started

Requirements

Migrations

Migrations are managed with the golang-migrate/migrate CLI tool.

To run all the migrations:

migrate -source file:migrations -database "postgres://localhost:5432/discovery-database?sslmode=disable" up

To create a new migration:

migrate create -ext sql -dir migrations -seq <title>

This creates two empty files in /migrations:

{version}_{title}.up.sql
{version}_{title}.down.sql

The two migration files are used to migrate “up” to the specified version from the previous version, and to migrate “down” to the previous version. See golang-migrate/migrate/MIGRATIONS.md for details.