conan cache¶
在本地缓存（配方和/或包）中执行文件操作。
conan cache path¶
$ conan cache path -h
usage: conan cache path [-h] [-f FORMAT] [-v [V]] [-cc CORE_CONF]
[--folder {export_source,source,build,metadata}]
reference
Show the path to the Conan cache for a given reference.
positional arguments:
reference Recipe reference or Package reference
options:
-h, --help show this help message and exit
-f FORMAT, --format FORMAT
Select the output format: json
-v [V] Level of detail of the output. Valid options from less
verbose to more verbose: -vquiet, -verror, -vwarning,
-vnotice, -vstatus, -v or -vverbose, -vv or -vdebug,
-vvv or -vtrace
-cc CORE_CONF, --core-conf CORE_CONF
Define core configuration, overwriting global.conf
values. E.g.: -cc core:non_interactive=True
--folder {export_source,source,build,metadata}
Path to show. The 'build' requires a package
reference. If the argument is not passed, it shows
'exports' path for recipe references and 'package'
folder for package references.
conan cache path 返回给定引用在缓存中的路径。根据引用，它可能返回配方的路径，或包二进制文件的路径。
假设我们在当前缓存中创建了一个包，如下所示：
$ conan new cmake_lib -d name=pkg -d version=0.1
$ conan create .
...
Requirements
pkg/0.1#cdc0d9d0e8f554d3df2388c535137d77 - Cache
Requirements
pkg/0.1#cdc0d9d0e8f554d3df2388c535137d77:2401fa1d188d289bb25c37cfa3317e13e377a351 - Build
现在我们感兴趣的是获取 pkg/0.1 配方 conanfile.py 已导出到的路径
$ conan cache path pkg/0.1
<path to conan cache>/p/5cb229164ec1d245/e
$ ls <path to conan cache>/p/5cb229164ec1d245/e
conanfile.py conanmanifest.txt
默认情况下，如果未指定配方版本，则表示缓存中的“最新”版本。这也可以通过字面量 #latest 明确表示，还可以明确定义任何配方版本，以下命令等同于上述命令
$ conan cache path pkg/0.1#latest
<path to conan cache>/p/5cb229164ec1d245/e
# The recipe revision might be different in your case.
# Check the "conan create" output to get yours
$ conan cache path pkg/0.1#cdc0d9d0e8f554d3df2388c535137d77
<path to conan cache>/p/5cb229164ec1d245/e
除了配方文件夹之外，还有两个其他文件夹是使用此配方生成的全部二进制文件共有的：“export_source”文件夹和“source”文件夹。两者都可以使用以下命令获取：
$ conan cache path pkg/0.1 --folder=export_source
<path to conan cache>/p/5cb229164ec1d245/es
$ ls <path to conan cache>/p/5cb229164ec1d245/es
CMakeLists.txt include/ src/
$ conan cache path pkg/0.1 --folder=source
<path to conan cache>/p/5cb229164ec1d245/s
$ ls <path to conan cache>/p/5cb229164ec1d245/s
CMakeLists.txt include/ src/
在这种情况下，“source”文件夹的内容与“export_source”文件夹的内容相同，因为配方没有实现任何 source() 方法，该方法可以检索代码或对代码执行任何其他操作，例如应用补丁。
配方版本默认将为 #latest，这遵循与上述相同的规则。
请注意，如果包不是从源代码构建的，例如从服务器检索预编译的二进制文件时，这两个文件夹将不存在。
也可以通过提供 package_id 获取二进制包的文件夹
# Your package_id might be different, it depends on the platform
# Check the "conan create" output to obtain yours
$ conan cache path pkg/0.1:2401fa1d188d289bb25c37cfa3317e13e377a351
<path to conan cache>/p/1cae77d6250c23b7/p
$ ls <path to conan cache>/p/1cae77d6250c23b7/p
conaninfo.txt conanmanifest.txt include/ lib/
如上所述，默认情况下，它将解析为“最新”配方版本和包版本。上述命令等同于明确定义 #latest 或确切的版本。以下所有命令都等同于上述命令
$ conan cache path pkg/0.1#latest:2401fa1d188d289bb25c37cfa3317e13e377a351
<path to conan cache>/p/1cae77d6250c23b7/p
$ conan cache path pkg/0.1#latest:2401fa1d188d289bb25c37cfa3317e13e377a351#latest
<path to conan cache>/p/1cae77d6250c23b7/p
$ conan cache path pkg/0.1#cdc0d9d0e8f554d3df2388c535137d77:2401fa1d188d289bb25c37cfa3317e13e377a351
<path to conan cache>/p/1cae77d6250c23b7/p
可以访问包含所有临时构建工件的“build”文件夹
$ conan cache path pkg/0.1:2401fa1d188d289bb25c37cfa3317e13e377a351 --folder=build
<path to conan cache>/p/1cae77d6250c23b7/b
ls -al <path to conan cache>/p/1cae77d6250c23b7/b
build/ CMakeLists.txt CMakeUserPresets.json conaninfo.txt include/ src/
同样，“build”文件夹仅在包从源代码构建时才会存在。
注意
最佳实践
此
conan cache path命令旨在用于缓存的最终检查，但必须将缓存包存储视为**只读**。不要修改、更改、删除或添加缓存中的文件。如果您正在使用此命令获取工件路径然后复制它们，请考虑改用
deployer。在一般情况下，不建议手动从缓存中提取工件。开发人员可以使用
conan list ... --format=compact以紧凑的方式获取完整的引用，这些引用可以复制粘贴到conan cache path命令中
conan cache clean¶
$ conan cache clean -h
usage: conan cache clean [-h] [-v [V]] [-cc CORE_CONF] [-s] [-b] [-d] [-t]
[-bs] [-p PACKAGE_QUERY]
[pattern]
Remove non-critical folders from the cache, like source, build and/or download
(.tgz store) ones.
positional arguments:
pattern Selection pattern for references to clean
options:
-h, --help show this help message and exit
-v [V] Level of detail of the output. Valid options from less
verbose to more verbose: -vquiet, -verror, -vwarning,
-vnotice, -vstatus, -v or -vverbose, -vv or -vdebug,
-vvv or -vtrace
-cc CORE_CONF, --core-conf CORE_CONF
Define core configuration, overwriting global.conf
values. E.g.: -cc core:non_interactive=True
-s, --source Clean source folders
-b, --build Clean build folders
-d, --download Clean download and metadata folders
-t, --temp Clean temporary folders
-bs, --backup-sources
Clean backup sources
-p PACKAGE_QUERY, --package-query PACKAGE_QUERY
Remove only the packages matching a specific query,
e.g., os=Windows AND (arch=x86 OR compiler=gcc)
此命令将删除所有临时文件夹，以及 Conan 在其执行过程中生成的源代码、构建和下载文件夹。它将对传递到 *pattern* 中的每个匹配引用执行此操作，除非提供了特定的标志，在这种情况下，只会删除指定的文件夹。
示例:
删除所有非关键文件
$ conan cache clean "*"
删除所有临时文件
$ conan cache clean "*" --temp
删除
zlib配方的下载文件夹$ conan cache clean "zlib/*" --download
除了
zlib配方的下载文件夹之外，删除所有内容$ conan cache clean "zlib/*" --source --build --temp
conan cache check-integrity¶
$ conan cache check-integrity -h
usage: conan cache check-integrity [-h] [-v [V]] [-cc CORE_CONF]
[-p PACKAGE_QUERY]
pattern
Check the integrity of the local cache for the given references
positional arguments:
pattern Selection pattern for references to check integrity
for
options:
-h, --help show this help message and exit
-v [V] Level of detail of the output. Valid options from less
verbose to more verbose: -vquiet, -verror, -vwarning,
-vnotice, -vstatus, -v or -vverbose, -vv or -vdebug,
-vvv or -vtrace
-cc CORE_CONF, --core-conf CORE_CONF
Define core configuration, overwriting global.conf
values. E.g.: -cc core:non_interactive=True
-p PACKAGE_QUERY, --package-query PACKAGE_QUERY
Only the packages matching a specific query, e.g.,
os=Windows AND (arch=x86 OR compiler=gcc)
conan cache check-integrity 命令检查本地缓存中 Conan 包的完整性。这意味着如果 conanmanifest.txt 中包含的任何文件丢失或与该文件中声明的校验和不匹配，它将抛出错误。
例如，要验证整个 Conan 本地缓存的完整性，请执行以下操作：
$ conan cache check-integrity "*"
mypkg/1.0: Integrity checked: ok
mypkg/1.0:454923cd42d0da27b9b1294ebc3e4ecc84020747: Integrity checked: ok
mypkg/1.0:454923cd42d0da27b9b1294ebc3e4ecc84020747: Integrity checked: ok
zlib/1.2.11: Integrity checked: ok
zlib/1.2.11:6fe7fa69f760aee504e0be85c12b2327c716f9e7: Integrity checked: ok
conan cache backup-upload¶
$ conan cache backup-upload -h
usage: conan cache backup-upload [-h] [-v [V]] [-cc CORE_CONF]
Upload all the source backups present in the cache
options:
-h, --help show this help message and exit
-v [V] Level of detail of the output. Valid options from less
verbose to more verbose: -vquiet, -verror, -vwarning,
-vnotice, -vstatus, -v or -vverbose, -vv or -vdebug,
-vvv or -vtrace
-cc CORE_CONF, --core-conf CORE_CONF
Define core configuration, overwriting global.conf
values. E.g.: -cc core:non_interactive=True
conan cache backup-upload 将把本地缓存中存在的所有源备份上传到备份服务器（不包括从 core.sources:exclude_urls conf 中列出的排除 URL 中获取的备份），无论它们属于哪个包（如果有）。
conan cache save¶
$ conan cache save -h
usage: conan cache save [-h] [-f FORMAT] [-v [V]] [-cc CORE_CONF] [-l LIST]
[--file FILE]
[pattern]
Get the artifacts from a package list and archive them
positional arguments:
pattern A pattern in the form
'pkg/version#revision:package_id#revision', e.g:
zlib/1.2.13:* means all binaries for zlib/1.2.13. If
revision is not specified, it is assumed latest one.
options:
-h, --help show this help message and exit
-f FORMAT, --format FORMAT
Select the output format: json
-v [V] Level of detail of the output. Valid options from less
verbose to more verbose: -vquiet, -verror, -vwarning,
-vnotice, -vstatus, -v or -vverbose, -vv or -vdebug,
-vvv or -vtrace
-cc CORE_CONF, --core-conf CORE_CONF
Define core configuration, overwriting global.conf
values. E.g.: -cc core:non_interactive=True
-l LIST, --list LIST Package list of packages to save
--file FILE Save to this tgz file
在 从缓存保存和恢复包 中了解更多信息。
conan cache restore¶
$ conan cache restore -h
usage: conan cache restore [-h] [-f FORMAT] [-v [V]] [-cc CORE_CONF] file
Put the artifacts from an archive into the cache
positional arguments:
file Path to archive to restore
options:
-h, --help show this help message and exit
-f FORMAT, --format FORMAT
Select the output format: json
-v [V] Level of detail of the output. Valid options from less
verbose to more verbose: -vquiet, -verror, -vwarning,
-vnotice, -vstatus, -v or -vverbose, -vv or -vdebug,
-vvv or -vtrace
-cc CORE_CONF, --core-conf CORE_CONF
Define core configuration, overwriting global.conf
values. E.g.: -cc core:non_interactive=True
在 从缓存保存和恢复包 中了解更多信息。