Use simple git history query enhanced in Python

Author: JohT

cypher/GitLog/List_git_files_directories.cypher

@@ -0,0 +1,24 @@
+// List git files with commit statistics
+
+ MATCH (git_file:File&Git&!Repository)
+ WHERE git_file.deletedAt IS NULL // filter out deleted files
+  WITH percentileDisc(git_file.createdAtEpoch, 0.5)          AS medianCreatedAtEpoch
+      ,percentileDisc(git_file.lastModificationAtEpoch, 0.5) AS medianLastModificationAtEpoch
+      ,collect(git_file)                                     AS git_files
+UNWIND git_files AS git_file
+  WITH *
+      ,datetime.fromepochMillis(coalesce(git_file.createdAtEpoch, medianCreatedAtEpoch))                                            AS fileCreatedAtTimestamp
+      ,datetime.fromepochMillis(coalesce(git_file.lastModificationAtEpoch, git_file.createdAtEpoch, medianLastModificationAtEpoch)) AS fileLastModificationAtTimestamp
+ MATCH (git_repository:Git&Repository)-[:HAS_FILE]->(git_file)
+ MATCH (git_commit:Git&Commit)-[:CONTAINS_CHANGE]->(git_change:Git&Change)-->(old_files_included:Git&File&!Repository)-[:HAS_NEW_NAME*0..3]->(git_file)
+RETURN git_repository.name + '/' + git_file.relativePath AS filePath
+      ,split(git_commit.author, ' <')[0]                 AS author
+      ,count(DISTINCT git_commit.sha)                    AS commitCount
+      ,date(max(git_commit.date))                        AS lastCommitDate
+      ,max(date(fileCreatedAtTimestamp))                 AS lastCreationDate
+      ,max(date(fileLastModificationAtTimestamp))        AS lastModificationDate
+      ,duration.inDays(date(max(git_commit.date)), date()).days               AS daysSinceLastCommit
+      ,duration.inDays(max(fileCreatedAtTimestamp), datetime()).days          AS daysSinceLastCreation
+      ,duration.inDays(max(fileLastModificationAtTimestamp), datetime()).days AS daysSinceLastModification
+      ,max(git_commit.sha)                               AS maxCommitSha
+ORDER BY filePath ASCENDING, commitCount DESCENDING

cypher/GitLog/List_git_files_directories_with_commit_statistics.cypher

@@ -1,5 +1,6 @@
-// Check if there is at least one Git:Commit pointing to a Git:Change containing a Git:File
+// Check if there is at least one Git:Commit pointing to a Git:Change containing a Git:File from a Git:Repository
 
  MATCH (commit:Git:Commit)-[:CONTAINS_CHANGE]->(change:Git:Change)-->(file:Git:File)
+ MATCH (repository:Git:Repository)-[:HAS_FILE]->(file)
 RETURN commit.sha AS commitSha
  LIMIT 1