`GIT_EXTERNAL_DIFF` and the `GIT_DIFF_OPTS` environment variables
(see linkgit:git[1]), and the `diff` attribute (see linkgit:gitattributes[5]).
-What the -p option produces is slightly different from the traditional
+What the `-p` option produces is slightly different from the traditional
diff format:
1. It is preceded by a "git diff" header that looks like this:
the file that the rename/copy produces, respectively.
2. It is followed by one or more extended header lines:
-
- old mode <mode>
- new mode <mode>
- deleted file mode <mode>
- new file mode <mode>
- copy from <path>
- copy to <path>
- rename from <path>
- rename to <path>
- similarity index <number>
- dissimilarity index <number>
- index <hash>..<hash> <mode>
+
-File modes are printed as 6-digit octal numbers including the file type
+[synopsis]
+old mode <mode>
+new mode <mode>
+deleted file mode <mode>
+new file mode <mode>
+copy from <path>
+copy to <path>
+rename from <path>
+rename to <path>
+similarity index <number>
+dissimilarity index <number>
+index <hash>..<hash> <mode>
++
+File modes _<mode>_ are printed as 6-digit octal numbers including the file type
and file permission bits.
+
Path names in extended headers do not include the `a/` and `b/` prefixes.
file made it into the new one.
+
The index line includes the blob object names before and after the change.
-The <mode> is included if the file mode does not change; otherwise,
+The _<mode>_ is included if the file mode does not change; otherwise,
separate lines indicate the old and the new mode.
3. Pathnames with "unusual" characters are quoted as explained for
2. It is followed by one or more extended header lines
(this example shows a merge with two parents):
-
- index <hash>,<hash>..<hash>
- mode <mode>,<mode>..<mode>
- new file mode <mode>
- deleted file mode <mode>,<mode>
++
+[synopsis]
+index <hash>,<hash>..<hash>
+mode <mode>,<mode>`..`<mode>
+new file mode <mode>
+deleted file mode <mode>,<mode>
+
The `mode <mode>,<mode>..<mode>` line appears only if at least one of
the <mode> is different from the rest. Extended headers with
information about detected content movement (renames and
copying detection) are designed to work with the diff of two
-<tree-ish> and are not used by combined diff format.
+_<tree-ish>_ and are not used by combined diff format.
3. It is followed by a two-line from-file/to-file header: