add a workflow for a doc update on gh-pages branch for pushes to develop

.github/workflows/developer.yml

@@ -133,9 +133,6 @@ jobs:
         path: ~/data
         key: data-2
 
-    - name: Setup Pages
-      uses: actions/configure-pages@v4
-
     - name: build
       run: |
         cd wgrib2
@@ -168,6 +165,4 @@ jobs:
       with:
         path: wgrib2/build/docs/html  # Path to the built site files
 
-    - name: Deploy
-      uses: actions/deploy-pages@v1
 

.github/workflows/docs.yml

@@ -0,0 +1,105 @@
+# This workflow builds the docs and uploads them to gh-pages branch
+# for the wgrib2 project.
+#
+# Ed Hartnett
+name: docs
+on:
+  push:
+    branches:
+      - develop
+
+# Cancel in-progress workflows when pushing to a branch
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  docs:
+    runs-on: ubuntu-latest
+    env:
+      FC: gfortran
+      CC: gcc
+
+    permissions:
+      id-token: write
+      pages: write
+
+    steps:
+
+    - name: install
+      run: |
+        sudo apt-get update
+        sudo apt-get install libnetcdf-dev libnetcdff-dev netcdf-bin pkg-config
+        sudo apt-get install libpng-dev autotools-dev libaec-dev autoconf gcovr doxygen
+
+    - name: cache-jasper
+      id: cache-jasper
+      uses: actions/cache@v4
+      with:
+        path: ~/jasper
+        key: jasper-${{ runner.os }}-1.900.1
+
+    - name: checkout-jasper
+      if: steps.cache-jasper.outputs.cache-hit != 'true'
+      uses: actions/checkout@v4
+      with:
+        repository: jasper-software/jasper
+        path: jasper
+        ref: version-1.900.1
+
+    - name: build-jasper
+      if: steps.cache-jasper.outputs.cache-hit != 'true'
+      run: |
+        cd jasper
+        ./configure --prefix=$HOME/Jasper
+        make
+        make install
+
+    - name: checkout-ip
+      uses: actions/checkout@v4
+      with:
+        repository: NOAA-EMC/NCEPLIBS-ip
+        path: ip
+        ref: v5.0.0
+
+    - name: build-ip
+      run: |
+        cd ip
+        mkdir build
+        cd build
+        cmake .. -DCMAKE_INSTALL_PREFIX=~/ip 
+        make -j2
+        make install
+
+    - name: checkout
+      uses: actions/checkout@v4
+      with: 
+        path: wgrib2
+
+    - name: cache-data
+      id: cache-data
+      uses: actions/cache@v4
+      with:
+        path: ~/data
+        key: data-2
+
+    - name: Setup Pages
+      uses: actions/configure-pages@v4
+
+    - name: build
+      run: |
+        cd wgrib2
+        mkdir build
+        cd build
+        cmake .. -DENABLE_DOCS=ON -DCMAKE_PREFIX_PATH="~/ip"
+        make VERBOSE=1
+
+    - name: Upload built documentation
+      uses: actions/upload-pages-artifact@v1
+      with:
+        path: wgrib2/build/docs/html  # Path to the built site files
+
+    - name: Deploy
+      uses: actions/deploy-pages@v1
+
+

docs/user_guide.md

@@ -2,7 +2,8 @@
 
 # Introduction
 
-This document briefly describes wgrib2.
+This document briefly describes wgrib2, which provides functionality
+for interacting with, reading, writing, and manipulating GRIB2 files.
 
 ## Documentation for Previous Versions of wgrib2