### Repository Root Relative URL Syntax Examples

Source: https://github.com/apache/subversion/blob/trunk/notes/cli-repo-root-relative-support.txt

Examples demonstrating the syntax for referring to the repository root and paths relative to it. These are commonly used in Subversion commands.

```shell
^/
```

```shell
^/trunk
```

```shell
^/branches/1.5.x@25000
```

```shell
^/tags/1.4.6/@{2007-12-20T14:37:37.868870Z}
```

--------------------------------

### Example Revision Dump

Source: https://github.com/apache/subversion/blob/trunk/notes/dump-load-format.txt

This example illustrates a revision dump for revision 1422, showing the addition of a directory, a file, and modification of an existing file, including their properties.

```text
-------------------------------------------------------------------
Revision-number: 1422
Prop-content-length: 80
Content-length: 80

K 6
author
V 7
sussman
K 3
log
V 33
Added two files, changed a third.
PROPS-END


Node-path: bar/baz
Node-kind: dir
Node-action: add
Prop-content-length: 35
Content-length: 35

K 10
svn:ignore
V 4
TAGS
PROPS-END


Node-path: bar/baz/bop
Node-kind: file
Node-action: add
Prop-content-length: 76
Text-content-length: 54
Content-length: 130

K 14
svn:executable
V 2
on
K 12
svn:keywords
V 15
LastChangedDate
PROPS-END
Here is the text of the newly added 'bop' file.
Whee.

Node-path: bar/foo.c
Node-kind: file
Node-action: change
Text-content-length: 102
Content-length: 102

Here is the fulltext of my change to an existing /bar/foo.c.
Notice that this file has no properties.
-------------------------------------------------------------------
```

--------------------------------

### svn_io_start_cmd2

Source: https://github.com/apache/subversion/blob/trunk/notes/api-changes-1.7.txt

Start an external command process.

```APIDOC
## svn_io_start_cmd2

### Description
Start an external command process.

### Method
N/A (C function)

### Endpoint
N/A

### Parameters
N/A

### Request Example
N/A

### Response
N/A
```

--------------------------------

### Example of an abbreviated ChangeLog entry

Source: https://github.com/apache/subversion/blob/trunk/doc/programmer/WritingChangeLogs.txt

This example illustrates an unhelpful abbreviation of filenames and function names in a ChangeLog entry, making it difficult to search for specific changes.

```text
* gdbarch.[ch] (gdbarch_tdep, gdbarch_bfd_arch_info,
 	gdbarch_byte_order, {set,}gdbarch_long_bit,
 	{set,}gdbarch_long_long_bit, {set,}gdbarch_ptr_bit): Corresponding
 	functions.
```

--------------------------------

### Subversion Checkout Example

Source: https://github.com/apache/subversion/blob/trunk/notes/subversion-design.html

Demonstrates a typical checkout operation in Subversion, showing the initial state of a new project with directories and a single file.

```bash
prompt$ svn checkout myproj
U myproj/
U myproj/B
U myproj/A
U myproj/A/fish
U myproj/A/fish/tuna
prompt$
```

--------------------------------

### ChangeLog Entry Example

Source: https://github.com/apache/subversion/blob/trunk/doc/programmer/WritingChangeLogs.txt

Demonstrates the standard format for a ChangeLog entry, including date, author, email, and grouped changes with brief descriptions.

```text
1999-03-24  Stan Shebs  <shebs@andros.cygnus.com>

        * configure.host (mips-dec-mach3*): Use mipsm3, not mach3.

        Attempt to sort out SCO-related configs.
        * configure.host (i[3456]86-*-sysv4.2*): Use this instead of
        i[3456]86-*-sysv4.2MP and i[3456]86-*-sysv4.2uw2*.
        (i[3456]86-*-sysv5*): Recognize this.
        * configure.tgt (i[3456]86-*-sco3.2v5*, i[3456]86-*-sco3.2v4*):
        Recognize these.
```

--------------------------------

### Using a Custom Editor

Source: https://github.com/apache/subversion/blob/trunk/notes/editor-v2.txt

This example shows how to invoke a custom editor after it has been created and configured with its callbacks. The editor must be properly initialized before use.

```c
SVN_ERR(my_custom_editor(&editor, get_info, &get_baton, pools));
SVN_ERR(svn_editor_add_directory(editor, ...));
```

--------------------------------

### Initialize Subversion Test Repository

Source: https://github.com/apache/subversion/blob/trunk/tools/hook-scripts/mailer/tests/README.md

Prepare a Subversion repository for testing by running the mailer-init.sh script. Ensure Subversion Python bindings are installed.

```bash
$ ./mailer-init.sh
```

--------------------------------

### Configure svnserve Service for Automatic Start

Source: https://github.com/apache/subversion/blob/trunk/notes/windows-service.txt

To ensure svnserve starts automatically on system boot, add 'start= auto' during creation or use 'sc config' to update an existing service. Proper dependency declaration ('depend= Tcpip') is crucial for correct startup order.

```bash
sc create <name> \
   binpath= "c:\svn\bin\svnserve.exe --service <svn-args>" \
   displayname= "Subversion Repository" \
   depend= Tcpip \
   start= auto
```

```bash
sc config <name> start= auto
```

--------------------------------

### Custom Editor Implementation Example

Source: https://github.com/apache/subversion/blob/trunk/notes/editor-v2.txt

This snippet demonstrates how to create a custom editor by setting callbacks for specific editor functions. Ensure that the editor is created before setting any callbacks.

```c
svn_error_t *
my_custom_editor(svn_editor_t **editor, info_cb, info_baton, pools)
{
  SVN_ERR(svn_editor_create(editor, info_cb, info_baton,
                            result_pool, scratch_pool));
  SVN_ERR(svn_editor_setcb_add_directory(*editor, my_add_directory,
                                         scratch_pool));
  ...
  return SVN_NO_ERROR;
}
```

--------------------------------

### Inline Code Comment Example

Source: https://github.com/apache/subversion/blob/trunk/doc/programmer/WritingChangeLogs.txt

Shows an example of a code comment that explains a specific behavior or potential issue within a function, as referenced in a ChangeLog entry.

```c
   while (isdigit ((unsigned char)**type)) 
     {
       count *= 10;
       count += **type - '0';
       /* A sanity check.  Otherwise a symbol like
         `_Utf390_1__1_9223372036854775807__9223372036854775'
         can cause this function to return a negative value.
         In this case we just consume until the end of the string.  */
     }
```

--------------------------------

### Configure Service Binary Path with Debugger using sc.exe

Source: https://github.com/apache/subversion/blob/trunk/notes/windows-service.txt

This command configures a service to start under a debugger. The entire command must be on a single line, and the binary path must be enclosed in double-quotes with specific spacing. The Service Control Manager will execute the specified debugger, which then launches the service executable.

```bash
sc config <name> binpath= "d:\\dbg\\windbg.exe -g -G d:\\svn\\bin\\svnserve.exe --root d:\\path\\root --listen-port 9000" depend= Tcpip
```

--------------------------------

### Directory Copy Example in Dump Format

Source: https://github.com/apache/subversion/blob/trunk/notes/dump-load-format.txt

This Node record illustrates how a directory copy operation is represented in the dump format, showing the source and target paths and revision.

```text
Node-path: x/y/z
Node-kind: dir
Node-action: add
Node-copyfrom-rev: 10
Node-copyfrom-path: a/b/c
```

--------------------------------

### SVN Log Example: Verbose Merge

Source: https://github.com/apache/subversion/blob/trunk/notes/merge-tracking/func-spec.html

Demonstrates the output of 'svn log --use-merge-history --verbose' for a merge scenario, showing changed paths for each revision.

```text
------------------------------------------------------------------------
r24 | chuck | 2007-04-30 10:18:01 -0500 (Mon, 16 Apr 2007) | 1 line
Changed paths:
   M /trunk/death-ray.c
   M /trunk/frobnicator/frapnalyzer.c
 
Merge r12 and r14 from branch to trunk.
------------------------------------------------------------------------
r14 | bob | 2007-04-16 18:50:29 -0500 (Mon, 16 Apr 2007) | 1 line
Changed paths:
   M /branches/world-domination/death-ray.c
Result of a merge from: r24

Remove inadvertent changes to Death-Ray-o-Matic introduced in r12.
------------------------------------------------------------------------
r12 | alice | 2007-04-16 19:02:48 -0500 (Mon, 16 Apr 2007) | 1 line
Changed paths:
   M /branches/world-domination/frobnicator/frapnalyzer.c
   M /branches/world-domination/death-ray.c
Result of a merge from: r24

Fix frapnalyzer bug in frobnicator.
  
```

--------------------------------

### Example svn.conf Configuration

Source: https://github.com/apache/subversion/blob/trunk/notes/sasl.txt

This configuration file is read by the Cyrus SASL library to define authentication methods and password checking. It restricts available mechanisms and specifies the password database plugin.

```plaintext
pwcheck_method: auxprop
auxprop_plugin: sasldb
mech_list: ANONYMOUS DIGEST-MD5
```

--------------------------------

### Example of Replace with Copy Source and Text

Source: https://github.com/apache/subversion/blob/trunk/notes/dump-load-format.txt

This sequence demonstrates replacing a file with content copied from another file and also modifying its text.

```bash
$ svn rm dir/file.txt
$ svn cp otherdir/otherfile.txt dir/file.txt
$ echo "Replacement text" > dir/file.txt
$ svn ci -m "Replace dir/file.txt with a copy of otherdir/otherfile.txt and replace its text, too."
```

--------------------------------

### Example of Obliterating HEAD Revision Issues

Source: https://github.com/apache/subversion/blob/trunk/notes/obliterate/obliterate-functional-spec.txt

Demonstrates the problematic behavior when attempting to obliterate from HEAD using the virtual approach, leading to data reappearing.

```bash
svn add foo.txt
svn commit              [at r1]
edit foo.txt
svn ci                  [at r2]
svn obl foo.txt@0:HEAD  [OBL-SET: foo.txt@1:2]
svn up                  [at r2, repo empty (foo.txt obliterated)]
svn add bar.txt
svn ci                  [at r3]
svn up                  [at r3, foo.txt and bar.txt both exist]
```

--------------------------------

### svn_repos_get_fs_build_parser3

Source: https://github.com/apache/subversion/blob/trunk/notes/api-changes-1.7.txt

Get a parser for building filesystem data, with validation for svn props and using new notifications.

```APIDOC
## svn_repos_get_fs_build_parser3

### Description
Get a parser for building filesystem data, with validation for svn props and using new notifications.

### Method
N/A (C function)

### Endpoint
N/A

### Parameters
N/A

### Request Example
N/A

### Response
N/A
```

--------------------------------

### Traditional Patching Failure Example

Source: https://github.com/apache/subversion/blob/trunk/notes/variance-adjusted-patching.html

Demonstrates a scenario where a traditional context-based patch attempt fails, resulting in a reject file or conflict markers. This is typically seen when using standard patching tools like 'patch' or 'rcsmerge' with specific version control operations.

```bash
$ cvs up -j 1.1 -j 1.2 foo.c

```

--------------------------------

### Merge Conflict Example with Changed Context

Source: https://github.com/apache/subversion/blob/trunk/notes/variance-adjusted-patching.html

This example shows a merge conflict in foo.c where the context around the change has shifted, preventing a direct application of the patch. It highlights the differences between revision 1.1 and 1.2.

```c
int main (int argc, char **argv)
{
<<<<<<< foo.c
  /* line -5 of context */
  /* line -4 of context */
  /* line -3 of context */
  /* line -2 of context */
  /* line -1 of context */
  printf ("Hello, world!\n");
  /* line +1 of context */
  /* line +2 of context */
  /* line +3 of context */
  /* line +4 of context */
  /* line +5 of context */
=======
  /* line minus-five of context */
  /* line minus-four of context */
  /* line minus-three of context */
  /* line minus-two of context */
  /* line minus-one of context */
  printf ("Good-bye, cruel world!\n");
  /* line plus-one of context */
  /* line plus-two of context */
  /* line plus-three of context */
  /* line plus-four of context */
  /* line plus-five of context */
>>>>>>> 1.2
}
```

--------------------------------

### svn_io_stat_dirent

Source: https://github.com/apache/subversion/blob/trunk/notes/api-changes-1.7.txt

Get statistics for a directory entry.

```APIDOC
## svn_io_stat_dirent

### Description
Get statistics for a directory entry.

### Method
N/A (C function)

### Endpoint
N/A

### Parameters
N/A

### Request Example
N/A

### Response
N/A
```

--------------------------------

### svn_repos_fs_get_locks2

Source: https://github.com/apache/subversion/blob/trunk/notes/api-changes-1.7.txt

Get locks from the filesystem, supporting depth.

```APIDOC
## svn_repos_fs_get_locks2

### Description
Get locks from the filesystem, supporting depth.

### Method
N/A (C function)

### Endpoint
N/A

### Parameters
N/A

### Request Example
N/A

### Response
N/A
```

--------------------------------

### Create a new repository (CVS)

Source: https://github.com/apache/subversion/blob/trunk/doc/user/cvs-crossover-guide.html

Initializes a new CVS repository in the specified directory.

```bash
$ cvs -d /usr/local/repos init
```

--------------------------------

### svn_ra_get_locks2

Source: https://github.com/apache/subversion/blob/trunk/notes/api-changes-1.7.txt

Get locks on paths, supporting depth.

```APIDOC
## svn_ra_get_locks2

### Description
Get locks on paths, supporting depth.

### Method
N/A (C function)

### Endpoint
N/A

### Parameters
N/A

### Request Example
N/A

### Response
N/A
```

--------------------------------

### Checkout a working copy (Subversion)

Source: https://github.com/apache/subversion/blob/trunk/doc/user/cvs-crossover-guide.html

Creates a local directory mirroring a specified directory (typically trunk) from the Subversion repository.

```bash
$ svn checkout file:///usr/local/repos/trunk myproj
A  myproj/foo.c
A  myproj/bar.c
…
```

--------------------------------

### svn_ra_get_locations

Source: https://github.com/apache/subversion/blob/trunk/notes/api-changes-1.7.txt

Get the locations of a path at a specific revision.

```APIDOC
## svn_ra_get_locations

### Description
Get the locations of a path at a specific revision. This function now accepts 'const' on its array input.

### Method
N/A (C function)

### Endpoint
N/A

### Parameters
N/A

### Request Example
N/A

### Response
N/A
```

--------------------------------

### Checkout with Immediate Depth

Source: https://github.com/apache/subversion/blob/trunk/notes/sparse-directories.txt

Creates a working copy with all files and subdirectories, but the subdirectories are empty. Useful for a shallow checkout that can be expanded later.

```bash
svn co --depth=immediates http://.../A Awc2
```

--------------------------------

### svn_ra_get_path_relative_to_root

Source: https://github.com/apache/subversion/blob/trunk/notes/api-changes-1.7.txt

Get a path relative to the repository root.

```APIDOC
## svn_ra_get_path_relative_to_root

### Description
Get a path relative to the repository root.

### Method
N/A (C function)

### Endpoint
N/A

### Parameters
N/A

### Request Example
N/A

### Response
N/A
```

--------------------------------

### svn_io_file_name_get

Source: https://github.com/apache/subversion/blob/trunk/notes/api-changes-1.7.txt

Get the file name associated with a stream.

```APIDOC
## svn_io_file_name_get

### Description
Get the file name associated with a stream.

### Method
N/A (C function)

### Endpoint
N/A

### Parameters
N/A

### Request Example
N/A

### Response
N/A
```

--------------------------------

### svn_ra_svn_compression_level

Source: https://github.com/apache/subversion/blob/trunk/notes/api-changes-1.7.txt

Get or set the compression level for RA-SVN connections.

```APIDOC
## svn_ra_svn_compression_level

### Description
Get or set the compression level for RA-SVN connections. Consider renaming to svn_ra_svn_[conn_][get_]compression_level().

### Method
N/A (C function)

### Endpoint
N/A

### Parameters
N/A

### Request Example
N/A

### Response
N/A
```

--------------------------------

### Initialize svnsync destination repository

Source: https://github.com/apache/subversion/blob/trunk/notes/svnsync.txt

Initializes the destination repository for mirroring. Provide URLs for both the destination and source repositories. Credentials can be supplied using --source-username/--source-password and --sync-username/--sync-password.

```sh
svnsync init --sync-username svnsync file://`pwd`/dest               --source-username user  http://svn.example.org/source/repos
```

--------------------------------

### svn_opt_subcommand_help3

Source: https://github.com/apache/subversion/blob/trunk/notes/api-changes-1.7.txt

Display help for a subcommand, including aliases.

```APIDOC
## svn_opt_subcommand_help3

### Description
Display help for a subcommand, including aliases. This version has new behavior: shows aliases.

### Method
N/A (C function)

### Endpoint
N/A

### Parameters
N/A

### Request Example
N/A

### Response
N/A
```

--------------------------------

### svn_ra_get_mergeinfo2

Source: https://github.com/apache/subversion/blob/trunk/notes/api-changes-1.7.txt

Get merge information, with validation for inherited mergeinfo.

```APIDOC
## svn_ra_get_mergeinfo2

### Description
Get merge information, with validation for inherited mergeinfo.

### Method
N/A (C function)

### Endpoint
N/A

### Parameters
N/A

### Request Example
N/A

### Response
N/A
```

--------------------------------

### svn_prop_get_value

Source: https://github.com/apache/subversion/blob/trunk/notes/api-changes-1.7.txt

Get the value of a specific property from a hash table.

```APIDOC
## svn_prop_get_value

### Description
Get the value of a specific property from a hash table.

### Method
N/A (C function)

### Endpoint
N/A

### Parameters
N/A

### Request Example
N/A

### Response
N/A
```

--------------------------------

### svn_path_get_absolute

Source: https://github.com/apache/subversion/blob/trunk/notes/api-changes-1.7.txt

Get the absolute path. Deprecated; see dirent_uri.h.

```APIDOC
## svn_path_get_absolute

### Description
Get the absolute path. Deprecated; see dirent_uri.h.

### Method
N/A (C function)

### Endpoint
N/A

### Parameters
N/A

### Request Example
N/A

### Response
N/A
```

--------------------------------

### Initialize and Sync a Subdirectory with svnsync

Source: https://github.com/apache/subversion/blob/trunk/notes/svnsync.txt

Initializes and synchronizes a specific subdirectory from a master repository to a target repository. Ensure the master repository is organized by projects for this to be effective.

```bash
svnsync init file://`pwd`/dest http://svn.example.org/source/repos/project1
svnsync sync file://`pwd`/dest
```

--------------------------------

### svn_repos_fs_get_mergeinfo2

Source: https://github.com/apache/subversion/blob/trunk/notes/api-changes-1.7.txt

Get merge information from the filesystem, with validation for inherited mergeinfo.

```APIDOC
## svn_repos_fs_get_mergeinfo2

### Description
Get merge information from the filesystem, with validation for inherited mergeinfo.

### Method
N/A (C function)

### Endpoint
N/A

### Parameters
N/A

### Request Example
N/A

### Response
N/A
```

--------------------------------

### svn_ra_get_path_relative_to_session

Source: https://github.com/apache/subversion/blob/trunk/notes/api-changes-1.7.txt

Get a path relative to the current session's root.

```APIDOC
## svn_ra_get_path_relative_to_session

### Description
Get a path relative to the current session's root.

### Method
N/A (C function)

### Endpoint
N/A

### Parameters
N/A

### Request Example
N/A

### Response
N/A
```

--------------------------------

### svn_path_dirname

Source: https://github.com/apache/subversion/blob/trunk/notes/api-changes-1.7.txt

Get the directory name of a path. Deprecated; see dirent_uri.h.

```APIDOC
## svn_path_dirname

### Description
Get the directory name of a path. Deprecated; see dirent_uri.h.

### Method
N/A (C function)

### Endpoint
N/A

### Parameters
N/A

### Request Example
N/A

### Response
N/A
```

--------------------------------

### Configure Service for Interaction using sc.exe

Source: https://github.com/apache/subversion/blob/trunk/notes/windows-service.txt

Use this command to allow a Windows service to interact with the local desktop. This is useful for debugging by making console output visible. Restart the service after configuration.

```bash
sc <name> config type= own type= interact
```

--------------------------------

### Authenticate to a server (Subversion)

Source: https://github.com/apache/subversion/blob/trunk/doc/user/cvs-crossover-guide.html

Connects to a Subversion repository, prompting for authentication credentials when required by the server.

```bash
$ svn _command_ _URL_…
Password for 'user': XXXXXXX
```

--------------------------------

### svn_path_basename

Source: https://github.com/apache/subversion/blob/trunk/notes/api-changes-1.7.txt

Get the base name of a path. Deprecated; see dirent_uri.h.

```APIDOC
## svn_path_basename

### Description
Get the base name of a path. Deprecated; see dirent_uri.h.

### Method
N/A (C function)

### Endpoint
N/A

### Parameters
N/A

### Request Example
N/A

### Response
N/A
```

--------------------------------

### svn_io_get_dirents3

Source: https://github.com/apache/subversion/blob/trunk/notes/api-changes-1.7.txt

Get directory entries for a given path, with extended information.

```APIDOC
## svn_io_get_dirents3

### Description
Get directory entries for a given path, with extended information.

### Method
N/A (C function)

### Endpoint
N/A

### Parameters
N/A

### Request Example
N/A

### Response
N/A
```

--------------------------------

### Checkout with Files Depth

Source: https://github.com/apache/subversion/blob/trunk/notes/sparse-directories.txt

Creates a working copy with all files but no subdirectories. Use when only files are needed at the top level.

```bash
svn co --depth=files http://.../A Awc1
```

--------------------------------

### Commit with changelist filter

Source: https://github.com/apache/subversion/blob/trunk/notes/changelist-design.txt

Example of how 'svn commit' uses changelists as filters.

```text
harvest_committables() only harvests things that are committable *and* a member of the passed-in changelist.
```

--------------------------------

### svn_path_get_longest_ancestor

Source: https://github.com/apache/subversion/blob/trunk/notes/api-changes-1.7.txt

Get the longest common ancestor path. Deprecated; see dirent_uri.h.

```APIDOC
## svn_path_get_longest_ancestor

### Description
Get the longest common ancestor path. Deprecated; see dirent_uri.h.

### Method
N/A (C function)

### Endpoint
N/A

### Parameters
N/A

### Request Example
N/A

### Response
N/A
```

--------------------------------

### Create a new repository (Subversion)

Source: https://github.com/apache/subversion/blob/trunk/doc/user/cvs-crossover-guide.html

Creates a new Subversion repository structure in the specified directory.

```bash
$ svnadmin create /usr/local/repos
```

--------------------------------

### Run Subversion Mailer Test 1

Source: https://github.com/apache/subversion/blob/trunk/tools/hook-scripts/mailer/tests/README.md

Execute the first mailer test script (mailer-t1.sh) with the initialized repository, the repository path, and the mailer script path.

```bash
$ ./mailer-t1.sh mailer-init.12345/repos/ ../mailer.py
```

--------------------------------

### Checkout a working copy (CVS)

Source: https://github.com/apache/subversion/blob/trunk/doc/user/cvs-crossover-guide.html

Creates a local directory mirroring a specified directory from the CVS repository.

```bash
$ cvs -d /usr/local/repos checkout myproj
U myproj/foo.c
U myproj/bar.c
…
```

--------------------------------

### Open Directory with Editor Interface

Source: https://github.com/apache/subversion/blob/trunk/notes/subversion-design.html

Opens a directory using the editor interface, returning a baton for subsequent operations. The root baton grants broad permissions until closed.

```c
dir1_baton = editor->open_dir("dir1", root_baton);
```

--------------------------------

### Casefolding Unicode Characters

Source: https://github.com/apache/subversion/blob/trunk/subversion/libsvn_subr/utf8proc/README.md

Converts a Unicode string to its casefold variant. This is useful for case-insensitive comparisons. The example shows converting 'ß' to 'ss'.

```c
// Convert "ß"  (U+00DF) to its casefold variant "ss"
utf8proc_uint8_t str[] = "ß";
utf8proc_uint8_t *fold_str;
utf8proc_map(str, 0, &fold_str, UTF8PROC_NULLTERM | UTF8PROC_CASEFOLD);
printf("%s\n", fold_str);
// ss
free(fold_str);
```

--------------------------------

### Add File with Editor Interface

Source: https://github.com/apache/subversion/blob/trunk/notes/subversion-design.html

Adds a new file to a directory using the editor interface. The parent directory's baton is provided for context.

```c
file_baton = editor->add_file("file3", "/dir1/dir2/file3", dir2_baton);
```

--------------------------------

### Create Python Virtual Environment for Tests

Source: https://github.com/apache/subversion/blob/trunk/CMakeLists.txt

Sets up a Python virtual environment for running Subversion tests. This is executed as a build process step.

```cmake
execute_process(
    COMMAND
      "${Python3_EXECUTABLE}" "${run_tests_script}"
      --create-python-venv "${test_base_dir}"
      ${CMAKE_CURRENT_SOURCE_DIR}
    OUTPUT_VARIABLE command_output
    WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
    RESULT_VARIABLE command_result
  )
  if (command_result)
    message(SEND_ERROR "run_tests.py --create-python-venv failed.")
  endif()
  string(STRIP "${command_output}" python3_test_executable)
```

--------------------------------

### Set up pre-revprop-change hook script

Source: https://github.com/apache/subversion/blob/trunk/notes/svnsync.txt

This script is necessary for the destination repository to allow the svnsync user to make arbitrary propchanges. Ensure the script is executable.

```sh
#!/bin/sh
USER="$3"

if [ "$USER" = "svnsync" ]; then exit 0; fi

echo "Only the svnsync user can change revprops" >&2
exit 1
```

--------------------------------

### Checkout Working Copy in 1.15-Compatible Format

Source: https://github.com/apache/subversion/blob/trunk/notes/i525/i525-user-guide.md

Use this command to check out a new working copy that is compatible with Subversion 1.15 and enables the 'i525pod' feature. This creates a 'bare' working copy.

```bash
svn checkout --compatible-version=1.15
```

--------------------------------

### Display changelist information with svn info

Source: https://github.com/apache/subversion/blob/trunk/notes/changelist-design.txt

The 'svn info' command is enhanced to show changelist details.

```bash
svn info shows changelists
```