Extract diffs from the commit history between two versions

pharo-diffs.st

repositoryName := 'DataFrame'.

oldVersionTag := 'v1.0'.
newVersionTag := 'v2.0'.

repository := (IceRepository registry detect: [ :repo |
	repo isValid and: [ repo name = repositoryName ] ]).

oldCommit := (repository tags detect: [ :tag | tag name = oldVersionTag ]) commit.
newCommit := (repository tags detect: [ :tag | tag name = newVersionTag ]) commit.

commitWalk := (IceLibgitCommitWalk forRepository: repository)
	fromCommit: newCommit;
	uptoCommit: oldCommit;
	yourself.
		
commits := OrderedCollection new.
commitWalk commitsDo: [ :commit | commits add: commit ].
commits add: oldCommit.

commits := commits reversed.

diffs := OrderedCollection new.

(1 to: commits size - 1)
	do: [ :i |
		commit := commits at: i.
		[ diffs add: (commit diffTo: commit parent) ]
			on: Exception
			do: [ "Nothing" ] ]
	displayingProgress: [ :i | i asString, ' / ', commits size asString ].
		
commit := commits last.
diffs add: (commit diffTo: commit parent).

diffs.