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Creating, managing, and applying unified diff patches with Git for source code modifications.
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Based on SOC occupation classification
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| name | git-patch-workflow |
| description | Creating, managing, and applying unified diff patches with Git for source code modifications. |
cd /path/to/repo
git diff path/to/file.java > /path/to/patch/fix.patch
git diff --cached > /path/to/patch/fix.patch
# Create patch from last N commits
git format-patch -N HEAD
# Create patch from specific commit
git show COMMIT_HASH > /path/to/patch/fix.patch
A unified diff patch looks like:
--- a/original/path/file.java
+++ b/modified/path/file.java
@@ -10,5 +10,6 @@ class MyClass {
// context line
- old code here
+ new code here
// context line
Key components:
--- prefix: original file+++ prefix: modified file@@ markers: line numbers and context- prefix: removed lines+ prefix: added linescd /path/to/repo
patch -p1 < /path/to/patch/fix.patch
# Dry-run to test application
patch -p1 --dry-run < /path/to/patch/fix.patch
# Apply with strict checking
patch -p1 < /path/to/patch/fix.patch
# Apply with less strict checking
patch -p0 < /path/to/patch/fix.patch
git diff or git format-patch for consistencyfix-javascript-security-bypass.patch)# Check if patch was applied
git status
git diff HEAD
# Verify specific file was patched
git show HEAD:path/to/file.java | grep "your fix"
For multiple related patches:
# Create patches in order
git diff HEAD~2 HEAD~1 > patch1.patch
git diff HEAD~1 HEAD > patch2.patch
# Apply in sequence
patch -p1 < patch1.patch
patch -p1 < patch2.patch