summaryrefslogtreecommitdiffstats
path: root/Modules/ExternalProject/gitclone.cmake.in
blob: 94b329afeeac0124d3c947583410679ba8b39175 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.

cmake_minimum_required(VERSION 3.5)

if(EXISTS "@gitclone_stampfile@" AND EXISTS "@gitclone_infofile@" AND
  "@gitclone_stampfile@" IS_NEWER_THAN "@gitclone_infofile@")
  message(STATUS
    "Avoiding repeated git clone, stamp file is up to date: "
    "'@gitclone_stampfile@'"
  )
  return()
endif()

execute_process(
  COMMAND ${CMAKE_COMMAND} -E rm -rf "@source_dir@"
  RESULT_VARIABLE error_code
)
if(error_code)
  message(FATAL_ERROR "Failed to remove directory: '@source_dir@'")
endif()

# try the clone 3 times in case there is an odd git clone issue
set(error_code 1)
set(number_of_tries 0)
while(error_code AND number_of_tries LESS 3)
  execute_process(
    COMMAND "@git_EXECUTABLE@"
            clone @git_clone_options@ "@git_repository@" "@src_name@"
    WORKING_DIRECTORY "@work_dir@"
    RESULT_VARIABLE error_code
  )
  math(EXPR number_of_tries "${number_of_tries} + 1")
endwhile()
if(number_of_tries GREATER 1)
  message(STATUS "Had to git clone more than once: ${number_of_tries} times.")
endif()
if(error_code)
  message(FATAL_ERROR "Failed to clone repository: '@git_repository@'")
endif()

execute_process(
  COMMAND "@git_EXECUTABLE@"
          checkout "@git_tag@" @git_checkout_explicit--@
  WORKING_DIRECTORY "@work_dir@/@src_name@"
  RESULT_VARIABLE error_code
)
if(error_code)
  message(FATAL_ERROR "Failed to checkout tag: '@git_tag@'")
endif()

set(init_submodules @init_submodules@)
if(init_submodules)
  execute_process(
    COMMAND "@git_EXECUTABLE@" @git_submodules_config_options@
            submodule update @git_submodules_recurse@ --init @git_submodules@
    WORKING_DIRECTORY "@work_dir@/@src_name@"
    RESULT_VARIABLE error_code
  )
endif()
if(error_code)
  message(FATAL_ERROR "Failed to update submodules in: '@work_dir@/@src_name@'")
endif()

# Complete success, update the script-last-run stamp file:
#
execute_process(
  COMMAND ${CMAKE_COMMAND} -E copy "@gitclone_infofile@" "@gitclone_stampfile@"
  RESULT_VARIABLE error_code
)
if(error_code)
  message(FATAL_ERROR "Failed to copy script-last-run stamp file: '@gitclone_stampfile@'")
endif()