chore: partial release script (#11806)

partial_release.py to take "bump-snapshot-version" as argument. These
script created a change in
#11804.

- apply_current_version.sh is renamed to apply_version.sh and it now
takes the path to versions.txt file and "current|released" option.

## To create release versions of the modules

```
~/google-cloud-java$ python3 .github/release/partial_release.py bump-released-version   --artifact-ids=google-cloud-java,google-cloud-asset   --version-type=patch

~/google-cloud-java$ cd java-asset
~/google-cloud-java/java-asset$ ../generation/apply_versions.sh ../versions.txt released
```


## To create SNAPSHOT versions for the released modules

```
~/google-cloud-java$ python3 .github/release/partial_release.py bump-snapshot-version       --artifact-ids=google-cloud-java,google-cloud-asset
~/google-cloud-java$ ./generation/apply_versions.sh ./versions.txt current
```

Author: suztomo

.github/release/fixture/snapshot/versions-snapshot.txt

@@ -0,0 +1 @@
+google-cloud-asset:1.2.3:1.2.3

.github/release/partial_release.py

@@ -24,7 +24,8 @@
 class VersionType(Enum):
     MAJOR = (1,)
     MINOR = (2,)
-    PATCH = 3
+    PATCH = (3,)
+    SNAPSHOT = (4,)
 
 
 @click.group(invoke_without_command=False)
@@ -34,6 +35,27 @@ def main(ctx):
     pass
 
 
+@main.command()
+@click.option(
+    "--artifact-ids",
+    required=True,
+    type=str,
+    help="""
+    Artifact IDs whose version needs to update, separated by comma.
+    """,
+)
+@click.option(
+    "--versions",
+    required=False,
+    default="./versions.txt",
+    type=str,
+    help="""
+    The path to the versions.txt.
+    """,
+)
+def bump_snapshot_version(artifact_ids: str, versions: str) -> None:
+    bump_version(artifact_ids, "snapshot", versions)
+
 @main.command()
 @click.option(
     "--artifact-ids",
@@ -49,7 +71,7 @@ def main(ctx):
     default="patch",
     type=str,
     help="""
-    The type of version bump, one of major, minor or patch.
+    The type of version bump, one of major, minor, patch.
     """,
 )
 @click.option(
@@ -62,6 +84,9 @@ def main(ctx):
     """,
 )
 def bump_released_version(artifact_ids: str, version_type: str, versions: str) -> None:
+    bump_version(artifact_ids, version_type, versions)
+
+def bump_version(artifact_ids: str, version_type: str, versions: str) -> None:
     target_artifact_ids = set(artifact_ids.split(","))
     version_enum = _parse_type_or_raise(version_type)
     newlines = []
@@ -95,6 +120,12 @@ def bump_released_version(artifact_ids: str, version_type: str, versions: str) -
                     minor += 1
                 case VersionType.PATCH:
                     patch += 1
+                case VersionType.SNAPSHOT:
+                    # Keep the released version as is.
+                    newlines.append(
+                        f"{artifact_id}:{major}.{minor}.{patch}:{major}.{minor + 1}.0-SNAPSHOT"
+                    )
+                    continue
             newlines.append(
                 f"{artifact_id}:{major}.{minor}.{patch}:{major}.{minor}.{patch}"
             )

.github/release/release_unit_tests.py

@@ -4,7 +4,7 @@
 import shutil
 import tempfile
 import unittest
-from partial_release import bump_released_version
+from partial_release import bump_released_version, bump_snapshot_version
 
 SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__))
 GOLDEN = os.path.join(SCRIPT_DIR, "testdata")
@@ -45,6 +45,22 @@ def test_bump_multiple_versions_success(self):
                 actual = f.read()
             self.assertEqual(expected, actual)
 
+    def test_bump_snapshot_version_success(self):
+        golden = f"{GOLDEN}/snapshot/versions-snapshot-golden.txt"
+        with copied_fixtures_dir(f"{FIXTURES}/snapshot"):
+            runner.invoke(
+                bump_snapshot_version,
+                [
+                    "--artifact-ids=google-cloud-asset",
+                    "--versions=versions-snapshot.txt",
+                ],
+            )
+            with open(golden) as g:
+                expected = g.read()
+            with open("./versions-snapshot.txt") as f:
+                actual = f.read()
+            self.assertEqual(expected, actual)
+
 
 @contextlib.contextmanager
 def change_dir_to(path: str) -> str:

.github/release/testdata/snapshot/versions-snapshot-golden.txt

@@ -0,0 +1 @@
+google-cloud-asset:1.2.3:1.3.0-SNAPSHOT

generation/apply_current_versions.sh

@@ -0,0 +1,45 @@
+#!/bin/bash
+
+# This script sets the "current-version" written in versions.txt applied to all
+# pom.xml files in this monorepo.
+# This script plays supplemental role just in case Release Please pull request
+# fails to update all files.
+
+# Usage:
+# # Run this script at the root of the monorepo
+# bash generation/apply_current_versions.sh
+
+set -e
+
+versions_file=$1
+column_name=$2
+if [[ -z "$versions_file" || -z "$column_name" ]]; then
+  echo "Replaces the versions annotated with the x-version-update tag in"
+  echo "all pom.xml files in the current working directory and its subdirectories"
+  echo "with the versions specified in the versions.txt file (current or released)."
+  echo
+  echo "Usage: $0 path/to/versions.txt (released|current)"
+  exit 1
+fi
+if [[ "$column_name" == "released" ]]; then 
+  column_index=2
+elif [[ "$column_name" == "current" ]]; then
+  column_index=3
+elif "$column_name" != "current" ]]; then
+  echo "Error: column_name must be either 'released' or 'current'"
+  exit 1
+fi
+
+
+SED_OPTIONS=""
+
+# The second column is 
+for KV in $(cut -f1,"${column_index}" -d: $versions_file |grep -v "#"); do
+  K=${KV%:*}; V=${KV#*:}
+  echo Key:$K, Value:$V;
+  SED_OPTIONS="$SED_OPTIONS -e /x-version-update:$K:current/{s|<version>.*<\/version>|<version>$V<\/version>|;}"
+done
+
+echo "Running sed command. It may take few minutes."
+find . -maxdepth 3 -name pom.xml |sort --dictionary-order |xargs sed -i.bak $SED_OPTIONS
+find . -maxdepth 3 -name pom.xml.bak |xargs rm