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[vcpkg-download-distfile] Regenerate docs and enable SKIP_SHA512 only in unstable (head) mode

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This commit is contained in:
Robert Schumacher 2018-01-05 16:16:08 -08:00
parent 42c0cfc870
commit 2b30280c22
3 changed files with 35 additions and 16 deletions
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11
docs/maintainers/vcpkg_download_distfile.md
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@ -2,6 +2,8 @@
Download and cache a file needed for this port.
This helper should always be used instead of CMake's built-in `file(DOWNLOAD)` command.
## Usage
```cmake
vcpkg_download_distfile(
@ -26,12 +28,17 @@ The expected hash for the file.
If this doesn't match the downloaded version, the build will be terminated with a message describing the mismatch.
### SKIP_SHA512
Skip SHA512 hash check for file.
This switch is only valid when building with the `--head` command line flag.
## Notes
The command [`vcpkg_from_github`](vcpkg_from_github.md) should be used instead of this for downloading the main archive for GitHub projects.
The helper [`vcpkg_from_github`](vcpkg_from_github.md) should be used for downloading from GitHub projects.
## Examples
* [boost](https://github.com/Microsoft/vcpkg/blob/master/ports/boost/portfile.cmake)
* [apr](https://github.com/Microsoft/vcpkg/blob/master/ports/apr/portfile.cmake)
* [fontconfig](https://github.com/Microsoft/vcpkg/blob/master/ports/fontconfig/portfile.cmake)
* [openssl](https://github.com/Microsoft/vcpkg/blob/master/ports/openssl/portfile.cmake)

33
scripts/cmake/vcpkg_download_distfile.cmake
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@ -2,6 +2,8 @@
##
## Download and cache a file needed for this port.
##
## This helper should always be used instead of CMake's built-in `file(DOWNLOAD)` command.
##
## ## Usage
## ```cmake
## vcpkg_download_distfile(
@ -29,12 +31,14 @@
## ### SKIP_SHA512
## Skip SHA512 hash check for file.
##
## This switch is only valid when building with the `--head` command line flag.
##
## ## Notes
## The command [`vcpkg_from_github`](vcpkg_from_github.md) should be used instead of this for downloading the main archive for GitHub projects.
## The helper [`vcpkg_from_github`](vcpkg_from_github.md) should be used for downloading from GitHub projects.
##
## ## Examples
##
## * [boost](https://github.com/Microsoft/vcpkg/blob/master/ports/boost/portfile.cmake)
## * [apr](https://github.com/Microsoft/vcpkg/blob/master/ports/apr/portfile.cmake)
## * [fontconfig](https://github.com/Microsoft/vcpkg/blob/master/ports/fontconfig/portfile.cmake)
## * [openssl](https://github.com/Microsoft/vcpkg/blob/master/ports/openssl/portfile.cmake)
function(vcpkg_download_distfile VAR)
@ -49,8 +53,14 @@ function(vcpkg_download_distfile VAR)
if(NOT DEFINED vcpkg_download_distfile_FILENAME)
message(FATAL_ERROR "vcpkg_download_distfile requires a FILENAME argument.")
endif()
if(NOT DEFINED vcpkg_download_distfile_SKIP_SHA512 AND NOT _VCPKG_INTERNAL_NO_HASH_CHECK AND NOT DEFINED vcpkg_download_distfile_SHA512)
message(FATAL_ERROR "vcpkg_download_distfile requires a SHA512 argument.")
if(vcpkg_download_distfile_SKIP_SHA512 AND NOT VCPKG_USE_HEAD_VERSION)
message(FATAL_ERROR "vcpkg_download_distfile only allows SKIP_SHA512 when building with --head")
endif()
if(NOT vcpkg_download_distfile_SKIP_SHA512 AND NOT DEFINED vcpkg_download_distfile_SHA512)
message(FATAL_ERROR "vcpkg_download_distfile requires a SHA512 argument. If you do not know the SHA512, add it as 'SHA512 0' and re-run this command.")
endif()
if(vcpkg_download_distfile_SKIP_SHA512 AND DEFINED vcpkg_download_distfile_SHA512)
message(FATAL_ERROR "vcpkg_download_distfile must not be passed both SHA512 and SKIP_SHA512.")
endif()
set(downloaded_file_path ${DOWNLOADS}/${vcpkg_download_distfile_FILENAME})
@ -60,7 +70,12 @@ function(vcpkg_download_distfile VAR)
file(MAKE_DIRECTORY "${DOWNLOADS}/temp")
function(test_hash FILE_KIND CUSTOM_ERROR_ADVICE)
if (_VCPKG_INTERNAL_NO_HASH_CHECK)
if(_VCPKG_INTERNAL_NO_HASH_CHECK)
# When using the internal hash skip, do not output an explicit message.
return()
endif()
if(vcpkg_download_distfile_SKIP_SHA512)
message(STATUS "Skipping hash check for ${downloaded_file_path}.")
return()
endif()
@ -79,9 +94,7 @@ function(vcpkg_download_distfile VAR)
if(EXISTS ${downloaded_file_path})
message(STATUS "Using cached ${downloaded_file_path}")
if(NOT DEFINED vcpkg_download_distfile_SKIP_SHA512)
test_hash("cached file" "Please delete the file and retry if this file should be downloaded again.")
endif()
test_hash("cached file" "Please delete the file and retry if this file should be downloaded again.")
else()
if(_VCPKG_NO_DOWNLOADS)
message(FATAL_ERROR "Downloads are disabled, but '${downloaded_file_path}' does not exist.")
@ -109,9 +122,7 @@ function(vcpkg_download_distfile VAR)
" Failed to download file.\n"
" Add mirrors or submit an issue at https://github.com/Microsoft/vcpkg/issues\n")
else()
if(NOT DEFINED vcpkg_download_distfile_SKIP_SHA512)
test_hash("downloaded file" "The file may be corrupted.")
endif()
test_hash("downloaded file" "The file may have been corrupted in transit.")
endif()
endif()
set(${VAR} ${downloaded_file_path} PARENT_SCOPE)

7
scripts/cmake/vcpkg_from_github.cmake
View File

@ -137,7 +137,6 @@ function(vcpkg_from_github)
endif()
# Try to download the file and version information from github.
set(_VCPKG_INTERNAL_NO_HASH_CHECK "TRUE")
vcpkg_download_distfile(ARCHIVE_VERSION
URLS "https://api.github.com/repos/${ORG_NAME}/${REPO_NAME}/git/refs/heads/${_vdud_HEAD_REF}"
FILENAME ${downloaded_file_name}.version
@ -149,7 +148,6 @@ function(vcpkg_from_github)
FILENAME ${downloaded_file_name}
SKIP_SHA512
)
set(_VCPKG_INTERNAL_NO_HASH_CHECK "FALSE")
endif()
vcpkg_extract_source_archive_ex(
@ -164,7 +162,10 @@ function(vcpkg_from_github)
string(REGEX REPLACE "\"sha\": \"([a-f0-9]+)\"" "\\1" _version ${x})
# exports VCPKG_HEAD_VERSION to the caller. This will get picked up by ports.cmake after the build.
set(VCPKG_HEAD_VERSION ${_version} PARENT_SCOPE)
# When multiple vcpkg_from_github's are used after each other, only use the version from the first (hopefully the primary one).
if(NOT DEFINED VCPKG_HEAD_VERSION)
set(VCPKG_HEAD_VERSION ${_version} PARENT_SCOPE)
endif()
set_SOURCE_PATH(${CURRENT_BUILDTREES_DIR}/src/head ${SANITIZED_HEAD_REF})
endfunction()