open-pr: support update scripts to set pkgver

Some packages like bash and openssl need a little more attention than our generic
sed invocation.

This fixes #1

Signed-off-by: Matthias Aßhauer <[email protected]>

Author: rimrul

.github/workflows/open-pr.yml

@@ -141,10 +141,16 @@ jobs:
         shell: bash
         run: |
           cd "/usr/src/$REPO/$PACKAGE_TO_UPGRADE" &&
-          sed -i \
-            -e "s/^\\(pkgver=\\).*/\\1$UPGRADE_TO_VERSION/" \
-            -e 's/^pkgrel=.*/pkgrel=1/' \
-            PKGBUILD &&
+          update_script="$GITHUB_WORKSPACE/version/checksums/$PACKAGE_TO_UPGRADE"
+          if test -f "$update_script"
+          then
+            $update_script "$UPGRADE_TO_VERSION"
+          else
+            sed -i \
+              -e "s/^\\(pkgver=\\).*/\\1$UPGRADE_TO_VERSION/" \
+              -e 's/^pkgrel=.*/pkgrel=1/' \
+              PKGBUILD
+          fi &&
           git update-index -q --refresh &&
           if git diff-files --exit-code
           then

update-scripts/version/bash

@@ -0,0 +1,27 @@
+#!/usr/bin/env node
+
+// The `PKGBUILD` file of `bash` is sligtly different from most other packages
+// as it sets pkgver through a _basever part and a _patchlevel part.
+
+// Therefore we need to be a bit more careful when updating than just replacing
+// the value of pkgver.
+
+(async () => {
+    const version = process.argv[2]
+
+    let [ , basever, patchlevel ] = version.match(/^(\d+\.\d+)\.(\d+)/)
+    let match
+    
+    const fs = require('fs')
+    const lines = fs.readFileSync('PKGBUILD').toString('utf-8').split(/\r?\n/)
+    lines.forEach((line, i) => {
+        if ((match = line.match(/^(\s*_basever=)\S+/))) {
+            lines[i] = `${match[1]}${basever}`
+        } else if ((match = line.match(/^(\s*_patchlevel=)\S+\s(.*)/))) {
+            lines[i] = `${match[1]}${patchlevel.toString().padStart(3, "0")} ${match[2]}`
+        } else if ((match = line.match(/^(\s*pkgrel=)\S+/))) {
+            lines[i] = `${match[1]}${1}`
+        }
+    })
+    fs.writeFileSync('PKGBUILD', lines.join('\n'))
+})().catch(console.log)