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git-secret-changes use of echo adds a newline #291

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BrandonCsSanders opened this issue Dec 28, 2018 · 4 comments
Closed

git-secret-changes use of echo adds a newline #291

BrandonCsSanders opened this issue Dec 28, 2018 · 4 comments
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@joshrabinowitz
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@BrandonCsSanders
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What are the steps to reproduce this issue?

  1. don't change FILE.pem.secret
  2. run git-secret changes FILE.pem.secret

What happens?

git-secret changes shows that a newline at the end of the file was removed

--- /dev/fd/63	2018-12-28 08:43:13.000000000 -0800
+++ FILE.pem	2018-12-27 17:37:37.000000000 -0800
@@ -20,4 +20,4 @@
ASDFASDFASDFADFSADFSAFSDASDF...elided...
+-----END RSA PRIVATE KEY-----
\ No newline at end of file

What were you expecting to happen?

no changes

Any logs, error output, etc?

    diff_result=$(diff -u <(echo "$decrypted") "$path") || true

Should instead be

    diff_result=$(diff -u <(echo -n "$decrypted") "$path") || true

What versions of software are you using?

0.2.4
@sobolevn
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@BrandonCsSanders thanks for the bug report! Can you please send a PR with the fix?

BrandonCsSanders added a commit to BrandonCsSanders/git-secret that referenced this issue Dec 28, 2018
@BrandonCsSanders
Fixes sobolevn#291 ... remove extra changes newline
8789269
@BrandonCsSanders BrandonCsSanders mentioned this issue Dec 28, 2018
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BrandonCsSanders added a commit to BrandonCsSanders/git-secret that referenced this issue Dec 28, 2018
@BrandonCsSanders
No extra newline on git-secret-changes … fix sobolevn#291
1700b0f
BrandonCsSanders added a commit to BrandonCsSanders/git-secret that referenced this issue Dec 28, 2018
@BrandonCsSanders
Remove echo whitespace on changes … Fixes sobolevn#291
9c062ec
@joshrabinowitz joshrabinowitz mentioned this issue Dec 29, 2018
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@joshrabinowitz
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joshrabinowitz commented Dec 30, 2018 •
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I see what's going on here.

The underlying issue is that the $() construct used in decrypted=$(_decrypt "$path" "0" "0" "$homedir" "$passphrase") (and other places) removes trailing newlines.

So the 'right' thing to do is to get compare the output from _decrypt without stripping trailing newlines. (And use echo -n as you show).

@joshrabinowitz
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@BrandonCsSanders I've worked up a solution with tests for this issue at #293

@joshrabinowitz joshrabinowitz self-assigned this Jan 1, 2019
joshrabinowitz added a commit that referenced this issue Jan 1, 2019
@joshrabinowitz
Fixes for 'changes' and trailing newlines, for #291 (#293)
913d026 
* tests and comments about 'changes' for #291
* add 'changes' tests, improve diagnostic 
* preserve trailing newlines in diff output
* use bash trickery to preserve trailing newlines in captured text
* test 'changes' on files without newlines and when called on a non-existant file
* improve comments and variable names
@joshrabinowitz
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Fixed in #293

joshrabinowitz added a commit that referenced this issue Jan 3, 2019
@joshrabinowitz
reorder entries, add note #291 being fixed (#295)
4aa7dd2
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Remove extra newline on changes BrandonCsSanders/git-secret
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@joshrabinowitz @sobolevn @BrandonCsSanders