feature request: full diff between two commits

Currently, we have three options for working with version controlled files:

  ( -m | --modified )              Create a new tab for each modified file
  ( -c | --commit ) <rev>          File revisions <rev-1> and <rev>
  ( -r | --revision ) <rev>        File revision <rev>

As far as I can tell, these are actually used as

diffuse -m                                  // for working-copy changes, in git also for staged uncommited changes
diffuse -c <rev>                            // compare two consecutive revisions
diffuse -r <rev> <file> <file>              // compare selected revision to working copy of a given file
diffuse -r <rev1> <file> -r <rev2> <file>   // compare two revisions of a given file

I am looking for an option to compare the full state of the repository between two revisions, so something like -c or -m, but with two revision parameters, or something like -r, but without the <file> parameters:

diffuse -r <rev>    // open al files that differ between <rev> and working copy
diffuse -C <rev1> <rev2>  // like -c, but revisions don't have to be consecutive

Doesn't diffuse work with single files, not multiple files?
Also, see #63 and #15.

Closing: a duplicate of #15 .

Doesn't diffuse work with single files, not multiple files? Also, see #63 and #15.

Well, no, the -m and -c options open multiple files simultaneously.

By multiple, I meant like a folder or all the files in a commit.
I think it only deals with a single view of comparison, although that can involve several files (2-way, 3-way, more).

@MightyCreak

I most often invoke diffuse with -m, which opens each file with unstaged and/or uncommitted changes in a separate tab. No additional arguments are required, just the switch!

Similarly, diffuse -c <rev> without further arguments opens a separate tab for each file affected by the commit <rev>.

Thus, the treatment of individual commits and of uncommitted/unstaged changes is very satisfactory indeed! And because those options already exist, I suspect extending them to comparison of non-consecutive commits should not be difficult (at least for some VCSs; as @MightyCreak pointed out in one of the other issues, the problem is in implementing a new switch for all 7 or 8 supported VCSs including the less common ones).

If you'd like to be picky, you could point out that diffuse still can not fully reflect all possible changes that a version control system could track (e.g. changed rights and ownership of files, or additions/deletions of empty folders).
Git merge commits are possibly also a problem (-c <merge commit> does not open anything for me, instead of the expected 3-fold comparison of the two original branches on either side and the result of merging them in the middle).

reopening because #15 was closed without addressing this FR

Here is a patch that provides full diff between two commits for git.
It is used like :

diffuse -c commit1..commit2    # shows the full diff between git commit1 and commit2

--- a/src/diffuse/vcs/git.py
+++ b/src/diffuse/vcs/git.py
@@ -39,7 +39,10 @@ class Git(VcsInterface):
         for name in names:
             isabs |= os.path.isabs(name)
         # run command
-        prev = rev + '^'
+        if '..' in rev:
+            prev, rev = rev.split('..')
+        else:
+            prev = rev + '^'
         fs = FolderSet(names)
         modified = {}
         for s in utils.popenReadLines(self.root, args, prefs, 'git_bash'):

Same thing for mercurial (a bit more tricky, hopefully it does not break anything!)

--- a/src/diffuse/vcs/hg.py
+++ b/src/diffuse/vcs/hg.py
@@ -66,6 +66,12 @@ class Hg(VcsInterface):
             args.append(utils.safeRelativePath(self.root, name, prefs, 'hg_cygwin'))
         # run command
         prev = self._getPreviousRevision(prefs, rev)
+        if rev is not None:
+            if '..' in rev:
+                prev, rev = rev.split('..')
+                args.extend(['-r',prev,'-r',rev])
+            else:
+                args.extend(['-r',rev])
         fs = FolderSet(names)
         modified = {}
         for s in utils.popenReadLines(self.root, args, prefs, 'hg_bash'):
@@ -92,7 +98,7 @@ class Hg(VcsInterface):
         return self._getCommitTemplate(
             prefs,
             names,
-            ['log', '--template', 'A\t{file_adds}\nM\t{file_mods}\nR\t{file_dels}\n', '-r', rev],
+            ['log', '--template', 'A\t{file_adds}\nM\t{file_mods}\nR\t{file_dels}\n'],
             rev)

@nschaeff

@nschaeff Works like a charm. Thanks so much!

For anyone running diffuse from flatpak, I've been able to apply the patch by manually editing the file /var/lib/flatpak/app/io.github.mightycreak.Diffuse/x86_64/stable/feb78314b6377384a33435a6c9cf2a7a04e7d907ba5ce7eeb2656f221b6fdf83/files/share/diffuse/diffuse/vcs/git.py without having to recompile anything.

EDIT: I've been able to update diffuse by running flatpak update io.github.mightycreak.Diffuse (from 0.8.1 to 0.8.2) and the edit in the file even persisted. I suppose an update that would touch one of the manually edited files might break down, though.

This looks good to me. Git also uses the triple dot ... to separate revisions, with slightly different semantics. I wonder if we could leave the parsing of revision lists to Git.

Either way, the proposed patches look good. Who can help with a pull request?

There is already one: #212

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feature request: full diff between two commits #190

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feature request: full diff between two commits #190

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joyously commented on Jan 24, 2023

Ansa211 commented on Jan 24, 2023

Ansa211 commented on Jan 24, 2023

joyously commented on Jan 24, 2023

Ansa211 commented on Jan 24, 2023

Ansa211 commented on May 22, 2023

nschaeff commented on Jun 1, 2023

nschaeff commented on Jun 1, 2023

Ansa211 commented on Jul 3, 2023

krlmlr commented on Aug 5, 2023

nschaeff commented on Aug 21, 2023

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