exclude git from container build

It's not required and grows over time.
Also exclude containerfiles from the copy so changes in them won't
trigger layer invalidation if it's not needed

Author: TheFox0x7

.dockerignore

@@ -74,7 +74,8 @@ cpu.out
 /VERSION
 /.air
 /.go-licenses
-
+Dockerfile
+Dockerfile.rootless
 # Files and folders that were previously generated
 /public/assets/img/webpack
 

Dockerfile

@@ -1,3 +1,4 @@
+# syntax=docker/dockerfile:1
 # Build stage
 FROM docker.io/library/golang:1.25-alpine3.22 AS build-env
 
@@ -16,46 +17,15 @@ RUN apk --no-cache add \
     pnpm
 
 WORKDIR ${GOPATH}/src/code.gitea.io/gitea
-
-COPY Makefile .
-
-# Fetch go dependencies
-COPY go.mod go.sum ./
-RUN --mount=type=cache,target=/go/pkg/mod \
-  go mod download
-
-# Fetch pnpm dependencies
-COPY package.json pnpm-lock.yaml ./
-RUN --mount=type=cache,target=/root/.local/share/pnpm/store \
-  pnpm install --frozen-lockfile --prod
-
-COPY ./webpack.config.ts tailwind.config.ts ./
-COPY ./assets ./assets
-COPY ./public ./public
-COPY ./web_src ./web_src
-
-RUN make frontend
-
-# Copy source files
-COPY ./build ./build
-COPY ./cmd ./cmd
-COPY ./models ./models
-COPY ./modules ./modules
-COPY ./options ./options
-COPY ./routers ./routers
-COPY ./services ./services
-COPY ./templates ./templates
-COPY ./build.go .
-COPY ./main.go .
-COPY contrib/environment-to-ini/environment-to-ini.go contrib/environment-to-ini/environment-to-ini.go
-COPY ./custom ./custom
+COPY --exclude=.git/ . .
 
 # Checkout version if set
 RUN --mount=type=cache,target=/go/pkg/mod \
     --mount=type=cache,target="/root/.cache/go-build" \
-    --mount=type=bind,source=".git",target="${GOPATH}/src/code.gitea.io/gitea/.git" \
+    --mount=type=cache,target=/root/.local/share/pnpm/store \
+    --mount=type=bind,source=".git/",target=".git/" \
     if [ -n "${GITEA_VERSION}" ]; then git checkout "${GITEA_VERSION}"; fi \
-    && make backend
+    && make
 
 # Begin env-to-ini build
 RUN --mount=type=cache,target=/go/pkg/mod \

Dockerfile.rootless

@@ -1,3 +1,4 @@
+# syntax=docker/dockerfile:1
 # Build stage
 FROM docker.io/library/golang:1.25-alpine3.22 AS build-env
 
@@ -16,46 +17,15 @@ RUN apk --no-cache add \
     pnpm
 
 WORKDIR ${GOPATH}/src/code.gitea.io/gitea
-
-COPY Makefile .
-
-# Fetch go dependencies
-COPY go.mod go.sum ./
-RUN --mount=type=cache,target=/go/pkg/mod \
-  go mod download
-
-# Fetch pnpm dependencies
-COPY package.json pnpm-lock.yaml ./
-RUN --mount=type=cache,target=/root/.local/share/pnpm/store \
-  pnpm install --frozen-lockfile --prod
-
-COPY ./webpack.config.ts tailwind.config.ts ./
-COPY ./assets ./assets
-COPY ./public ./public
-COPY ./web_src ./web_src
-
-RUN make frontend
-
-# Copy source files
-COPY ./build ./build
-COPY ./cmd ./cmd
-COPY ./models ./models
-COPY ./modules ./modules
-COPY ./options ./options
-COPY ./routers ./routers
-COPY ./services ./services
-COPY ./templates ./templates
-COPY ./build.go .
-COPY ./main.go .
-COPY contrib/environment-to-ini/environment-to-ini.go contrib/environment-to-ini/environment-to-ini.go
-COPY ./custom ./custom
+COPY --exclude=.git/ . .
 
 # Checkout version if set
 RUN --mount=type=cache,target=/go/pkg/mod \
     --mount=type=cache,target="/root/.cache/go-build" \
-    --mount=type=bind,source=".git",target="${GOPATH}/src/code.gitea.io/gitea/.git" \
+    --mount=type=cache,target=/root/.local/share/pnpm/store \
+    --mount=type=bind,source=".git/",target=".git/" \
     if [ -n "${GITEA_VERSION}" ]; then git checkout "${GITEA_VERSION}"; fi \
-    && make backend
+    && make
 
 # Begin env-to-ini build
 RUN --mount=type=cache,target=/go/pkg/mod \