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bin/ldiff doesn't always output the correct output #6

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halostatue opened this issue Aug 27, 2011 · 3 comments
Closed

bin/ldiff doesn't always output the correct output #6

halostatue opened this issue Aug 27, 2011 · 3 comments
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@halostatue
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With files aX (containing aX\n) and bXaX (containing bXaX\n), the output of bin/ldiff does not match that of GNU diff.

With bin/ldiff aX bXaX:


1c1
< aX

---
> bXaX

With diff aX bXaX:

1c1
< aX

---
> bXaX

Note the extra blank lines.

The same applies with bin/ldiff -u aX bXaX:

--- aX  2011-08-27 09:36:12 -0400
+++ bXaX    2011-08-27 09:36:18 -0400

@@ -1,2 +1,2 @@
-aX
+bXaX

versus:

--- aX  2011-08-27 09:36:12.000000000 -0400
+++ bXaX    2011-08-27 09:36:18.000000000 -0400
@@ -1 +1 @@
-aX
+bXaX
@halostatue
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The fact that bin/ldiff -u sees the files as having two lines is likely a hint that points to the possible problem seen in Issue 2.

@halostatue
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This has mostly improved. The output from bin/ldiff aX bXaX:

1c1
< aX
---
> bXaX

Unified diffs are 100% better:

--- aX  2013-02-09 10:43:26.000000000 -0500
+++ bX  2013-02-09 10:43:34.000000000 -0500
@@ -1,2 +1,2 @@
-aX
+bXaX

Context diffs (not shown previously) are also correctly identical.

@halostatue halostatue mentioned this issue Feb 3, 2019
Closed
halostatue added a commit that referenced this issue Feb 3, 2019
@halostatue
Resolve ldiff output issues
657bacd 
Resolves #5 and #6 by adding system-output comparison calls to `bin/ldiff`
compared against some pre-generated output.
@halostatue halostatue mentioned this issue Feb 3, 2019
Merged
halostatue added a commit that referenced this issue Feb 4, 2019
@halostatue
Resolve multiple issues for 1.4
64f88e7 
-   Resolve ldiff output issues: Resolves #5 and #6 by adding system-output
    comparison calls to `bin/ldiff` compared against some pre-generated output.
    There is some timestamp manipulation involved with the output comparison,
    as the timestamps are unstable because of the way that git clone works.

-   Resolved a problem with bin/ldiff --context output.

-   Resolved a Numeric/Integer OptParse issue: later versions of Ruby had
    problems working with an `OptParse` option specification of `Numeric`; this
    has been changed to `Integer`.
halostatue added a commit that referenced this issue Feb 4, 2019
@halostatue
Resolve multiple issues for 1.4
1516922 
-   Resolve ldiff output issues: Resolves #5 and #6 by adding system-output
    comparison calls to `bin/ldiff` compared against some pre-generated output.
    There is some timestamp manipulation involved with the output comparison,
    as the timestamps are unstable because of the way that git clone works.

-   Resolved a problem with bin/ldiff --context output.

-   Resolved a Numeric/Integer OptParse issue: later versions of Ruby had
    problems working with an `OptParse` option specification of `Numeric`; this
    has been changed to `Integer`.
@halostatue halostatue mentioned this issue Jun 28, 2020
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@halostatue
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The recent release of v1.4 fixes this.

halostatue added a commit that referenced this issue Jul 1, 2020
@halostatue
# This is a combination of 9 commits.
60613d2 
# This is the 1st commit message:

Fix improperly placed chunks

Resolve #65

- Also add even more tests for checking `ldiff` results against `diff` results.
- Fix issues with diff/ldiff output highlighted by the above tests.
- Add a parameter to indicate that the hunk being processed is the _last_ hunk;
  this results in correct counting of the hunk size.
- The misplaced chunks were happening because of an improper `.abs` on
  `#diff_size`, when the `.abs` needed to be on the finding of the maximum diff
  size.

# This is the commit message #2:

Ooops. Debugger

# This is the commit message #3:

Restore missing test

- Fix some more format issues raised by the missing test.
- Start fixing Rubocop formatting.

# This is the commit message #4:

Last RuboCop fixes

# This is the commit message #5:

Finalize diff-lcs 1.4

# This is the commit message #6:

Fix #44

The problem here was the precedence of `or` vs `||`. Switching to `||` resulted
in the expected behaviour.

# This is the commit message #7:

Resolve #43

# This is the commit message #8:

Typo

# This is the commit message #9:

Resolve #35 with a comment
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