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[#944] analyze authorship #2146

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SkyBlaise99
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Fixes #944

Proposed commit message

Currently, a line is credited to the author who last modified it.

Another author might have written the line initially and the current
author only modified it slightly. In such a case, the current author
gets credited for work that is not entirely done by him/her.

Let's analyze how similar a line is as compared to its ancestor lines
(previous versions of the line) and give full or partial credit to the
last author based on the analysis.

Other information

Changes in Frontend

  1. added a new entry: isFullCredit to be read from json file.
  2. a darker colour represents full credit while a lighter colour represents partial credit.

Changes in Backend

  1. added 2 new flags:
  • --analyze-authorship or -A to enable the feature
    • initially added as the program takes too long to run, can be removed now since runtime decreased by a lot.
  • --originality-threshold or -ot to manually set the threshold
    • acceptable range: 0.0 ~ 1.0
    • default 0.51
    • rational: the last author need to modify slightly more than half the line to be given full credit.
  1. added AuthorshipAnalyzer
  • main logic:
    1. given a line l, author a
    2. find previous version of l, the deleted lines with the lowest originality score (same idea as highest similarity score)
    3. Give full credit if
      • there are no deleted lines found
      • deleted line's originality score is more than the originality threshold
      • author of the deleted line is unknown
      • deleted line is before since date, is in ignored list, or is an ignored file
    4. Give partial credit if currentAuthor is not the author of the previous version
    5. Else restart from step 1 with the deleted line
  • improvements made: (runtime decreased from 1h 30 min to 13 min)
    1. added caching for git log and git diff
    2. added early termination for DP getLevenshteinDistance()
    3. reduce space compleity of DP getLevenshteinDistance()
  1. updated AnnotatorAnalyzer to handle overwriting of credit information
  • case 1: blame author == annotated author
    do nothing since it's the same author, credit information is retained.
  • case 2: blame author != annotated author
    overwrite author as usual, partial credit is given to annotated author as we are not sure the exact contribution since it is claimed.

jq1836 and others added 30 commits September 25, 2023 01:37
Currently, users are unable to select a zoom range that includes 
the until date.

This results in misleading data being presented to users.
…ense#2041)

Chrome bug is causing cypress to fail to open a browser on Github 
Actions, causing frontend tests and CI to fail. Upgrading cypress 
to greater than 12.15.0 will fix this issue.

Let's upgrade cypress to fix the failing CI.
Currently, there is still some JavaScript code which remains 
unmigrated. This allows for type unsafe code to be written, 
potentially resulting in unintended behavior.

Let's migrate the rest of the JavaScript code to TypeScript 
code to facilitate future changes to the code.
…posense#2040)

Currently, there is still some JavaScript code which remains 
unmigrated. This allows for type unsafe code to be written, 
potentially resulting in unintended behavior.

Let's migrate the rest of the JavaScript code to TypeScript 
code to facilitate future changes to the code.
Currently, Cypress zoom feature tests are failing due to a recent change
in behavior caused by a bug fix. With the tests failing, we are unable
to detect any future regressions.

Let's update the Cypress tests to test for the new intended behavior.
…#2043)

Currently, there is still some JavaScript code which remains unmigrated.
This allows for type unsafe code to be written, potentially resulting in
unintended behavior.

Let's migrate random-color-generator.js JavaScript code to TypeScript
code to facilitate future changes to the code.
…sense#2036)

Currently, there is still some JavaScript code which remains unmigrated.
This allows for type unsafe code to be written, potentially resulting in
unintended behavior.

Let's migrate the rest of the JavaScript code to TypeScript code to
facilitate future changes to the code.
Currently, there is still some JavaScript code which remains unmigrated.
This allows for type unsafe code to be written, potentially resulting in
unintended behavior.

Let's migrate the rest of the JavaScript code to TypeScript code to
facilitate future changes to the code.
Bumps [zod](https://github.com/colinhacks/zod) from 3.20.6 to 3.22.3.
- [Release notes](https://github.com/colinhacks/zod/releases)
- [Changelog](https://github.com/colinhacks/zod/blob/master/CHANGELOG.md)
- [Commits](colinhacks/zod@v3.20.6...v3.22.3)

---
updated-dependencies:
- dependency-name: zod
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Bumps [@cypress/request](https://github.com/cypress-io/request) to 3.0.1 and updates ancestor dependency [cypress](https://github.com/cypress-io/cypress). These dependencies need to be updated together.


Updates `@cypress/request` from 2.88.12 to 3.0.1
- [Release notes](https://github.com/cypress-io/request/releases)
- [Changelog](https://github.com/cypress-io/request/blob/master/CHANGELOG.md)
- [Commits](cypress-io/request@v2.88.12...v3.0.1)

Updates `cypress` from 12.17.4 to 13.3.0
- [Release notes](https://github.com/cypress-io/cypress/releases)
- [Changelog](https://github.com/cypress-io/cypress/blob/develop/CHANGELOG.md)
- [Commits](cypress-io/cypress@v12.17.4...v13.3.0)

---
updated-dependencies:
- dependency-name: "@cypress/request"
  dependency-type: indirect
- dependency-name: cypress
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Currently, there is still some JavaScript code which remains unmigrated.
This allows for type unsafe code to be written, potentially resulting in
unintended behavior.

Let's migrate the rest of the JavaScript code to TypeScript code to
facilitate future changes to the code.
Currently, when granularity is set to day or week, clicking on a ramp
will open up a zoom view where commit messages are not being displayed
and sorting by insertions does not result in any sorting. 

Let's fix the unintended behaviour of the zoom view.
Currently, there is still some JavaScript code which remains unmigrated.
This allows for type unsafe code to be written, potentially resulting in
unintended behavior.

Let's migrate repo-sorter.js to TypeScript code to facilitate future
changes to the code.
Currently, there is still some JavaScript code which remains unmigrated.
This allows for type unsafe code to be written, potentially resulting in
unintended behavior.

Let's migrate safari_date.js to TypeScript code to facilitate future
changes to the code.
Currently, frontend linter is failing due to lint scripts 
checking javascript files, the last of which has been 
removed in PR reposense#2053.

Lets update the lint command to exclude javascript 
files front the check.
…nse#2056)

Currently, most tooltips are shown above buttons and text. 
When these tooltips appear at the top of the viewport, 
part of the tooltips will not be rendered.

Let's implement changes such that these tooltips appear below the
text or button, when appearing at the top of the viewport.
… file title (reposense#2057)

Currently, if one hovers over a tooltip of the pinned title of
a file whose content is scrolled almost completely, such that 
the title of the next file is just below the pinned title, the 
tooltip is not displayed appropriately, as the title of the next 
file obstructs it.

Let's fix this issue.
…cs (reposense#2050)

There are still leftover references specific to GitHub on parts of 
the codebase and docs that have been generalized to accept 
other remote git hosts. 

Let's update these GitHub references to use more general language.
# Conflicts:
#	frontend/cypress/tests/chartView/chartView_zoomFeature.cy.js
#	frontend/src/views/c-authorship.vue
This reverts commit 950c912, reversing
changes made to 4bd05a7.
@SkyBlaise99 SkyBlaise99 closed this Mar 7, 2024
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4 participants